gene_name
string
gene_id
string
category
string
cell_name
string
tissue_type
string
phenotype
string
aging_type
string
experiment
string
description
string
target_gene
string
regulatory_type_of_target_gene
string
target_gene_experiment
string
target_gene_description
string
regulatory_pathway
string
regulatory_type_of_pathway
string
pathway_experiment
string
pathway_description
string
species
string
experimental_category
string
aging_characteristic
string
pmid
int64
source
string
Alizarin_red_S_staining
int64
Annexin_V_binding_assay
int64
Apoptosis_assay
int64
Atomic_force_microscopy_imaging
int64
Autofluorescence
int64
Behavioral_assessment
int64
BrdU_analysis
int64
BrdU_assay
int64
CCK_8_assay
int64
CHIP
int64
Cell_activity_assay
int64
Cell_apoptosis_assay
int64
Cell_counting
int64
Cell_cycle_analysis
int64
Cell_growth_assay
int64
Cell_migration_assay
int64
Cell_morphological_analysis
int64
Cell_proliferation_assay
int64
Cell_transfection
int64
Cell_viability_assay
int64
ChIP_qPCR
int64
Clonal_expansion_assay
int64
Clonogenic_assay
int64
Colony_formation_assay
int64
Colony_formation?assay
int64
Comet_assay
int64
Crystal_violet_assay
int64
Cytokine_assay
int64
DAPI_staining
int64
DNA_FISH
int64
DNA_fiber_assay
int64
ELISA
int64
EdU_Assay
int64
EdU_assay
int64
EdU_assay/SA__gal_activity_assay
int64
EdU_cell_proliferation_assay
int64
FACS_analysis
int64
FCM_analysis
int64
FISH
int64
FITC_Annexin_V/PI
int64
Flow_cyotmetry
int64
Flow_cytometry
int64
Fluorescence_quenching_assay
int64
GO_analysis
int64
GSEA_analysis
int64
Giemsa_staining
int64
Growth_curve_assay
int64
Growth_kinetics_analysis
int64
Histochemical_staining
int64
Histological_images_analysis
int64
Histological_staining
int64
Hoechst_staining
int64
IHC
int64
IHC_staining
int64
Immunoblotting
int64
Immunochemical_staining
int64
Immunocytochemistry
int64
Immunofluorescence
int64
Immunohistochemical_staining
int64
Immunohistochemistry
int64
Immunostaining
int64
Immunostainings
int64
JC_1_probe_staining
int64
Ki67_staining
int64
Knockdown
int64
LDH_activity_assay
int64
Lifespan_assay
int64
Luciferase_reporter_assay
int64
MTS_assay
int64
MTT_assay
int64
Microarray
int64
Northern_blot
int64
PCR
int64
PI_staining
int64
Prevent
int64
RNA_seq
int64
ROS_assay
int64
ROS_staining
int64
RT__PCR
int64
RT_PCR
int64
RT_qPCR
int64
SA__Gal_activity_assay
int64
SA__gal_activity
int64
SA__gal_activity_assay
int64
SA__gal_staining
int64
SAHF
int64
Safranin_O_fast_green_staining
int64
Safranin_O/Fast_Green_staining
int64
Safranin_O
int64
Southern_Blot
int64
Southern_blot
int64
Southern_blot_analysis
int64
Southern_hybridization
int64
Southern_hybridization_analysis
int64
Survival_curve
int64
TRAP_assay
int64
TRF_analysis
int64
TRF_assay
int64
TUNEL_assay
int64
Telomerase_Assay
int64
Telomerase_activity_assay
int64
Telomerase_assay
int64
Telomere_length_assay
int64
Transmission_electron_microscopy
int64
Transwell_assay
int64
Trypan_blue_staining
int64
Tube_formation_assay
int64
WST_1_assay
int64
WST_8_assay
int64
Western_blot
int64
XTT_assay
int64
miRNA_qRT_PCR
int64
qPCR
int64
qPT_PCR
int64
qRT_PCR
int64
qRT¨CPCR
int64
¦ÃH2AX_staining
int64
SLC16A7
9194
protein coding
LoVo,HT29,HCT-8,HCT116,SW480 ,MKN45,MKN74
--
Colorectal cancer
Prevent
Cell morphological analysis//Immunostaining//SA--gal activity assay//SAHF
All the cancer cell lines examined, including those of the colon (HCT8, HCT116, HT29, LoVo, and SW480) and stomach (MKN45 and MKN74), displayed cellular enlargement and flattening as well as positivity for SA-¦Â-Gal staining, following knockdown of MCT2. Cells additionally exhibited senescence-associated nuclear properties,including elevation of PML bodies, gH2AX, and SAHF.
--
--
--
--
--
--
--
--
Human
L
delay aging
22,964,484
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FIS1
51024
protein coding
Chang
--
Aging
Prevent
Cell counting//Knockdown//SA--gal activity assay//XTT assay
The hFis1 knockdown cells started becoming progressively flattened on day 2 and were obviously flattened and enlarged on day 4, showing a phenotype similar to that of cells undergoing senescence. On days 4 and 5,~30% of the hFis1 RNAi cells stained positive for senescence-associated ¦Â-galactosidase , whereas no staining was observed in control cells. Microscopic evaluations revealed that the proliferation of hFis1-depleted cells was noticeably slow. Indeed, cell growth of the hFis1-depleted cells was found to be significantly retarded in measuring cell numbers and by XTT assays.
OPA1
--
SA-¦Â-gal activity assay//Knockdown//Flow cytometry//Immunostaining
Furthermore, hFis1 and OPA1 double-knockdown cells showed significant decreases in positive senescence-associated ¦Â-galactosidase staining as well as in cellular granularity.We found that prolonged depletion of hFis1 in fact increased ROS production on day 4. Moreover, sustained depletion of hFis1 caused a significant loss of mitochondrial membrane potential.
--
--
--
--
Human
L
delay aging
17,545,159
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
NFKB2
4791
protein coding
A375
--
Melanoma
Prevent
Flow cytometry//SA--gal activity assay//Western blot//qRT-PCR
Cell size and granularity as determined by flow cytometry were significantly increased, as were the senescenceassociated ¦Â-galactosidase (SA-¦Â-Gal) activity and HP1¦Ã expression.The mRNA levels of p16 and p21 were increased after NF-kB2 silencing.
EZH2//NIK
Upregulation//--
qRT-PCR//Western blot
Using quantitative realtime PCR (qRT-PCR) in A375 melanoma cells, we observed a marked decrease in EZH2 mRNA under treatment with these NF-kB inhibitors.Similar to NF-kB2 silencing, NIK silencing strongly decreased the total NF-kB activity and abolished EZH2 promoter transcriptional activity. NF-kB2 overexpression (referred as o/e) in the melanocytes strongly increased EZH2 expression.
--
--
--
--
Human
L
delay aging
26,364,600
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
CAV1
857
protein coding
MEF
--
Aging
Accelerate
Cell morphological analysis//SA--gal activity assay
A higher percentage of caveolin-1-overexpressing MEFs (passage 1) are positive for acid ¦Â-galactosidase enzymatic activity as compared with MEFs derived from normal control mice.Light microscopy experiments indicated that 70¡À5% of MEFs(passage 1; n = 20) overexpressing caveolin-1 show a large and flat morphology as compared with 15¡À3% (n =18) of MEFs derived from normal control mice.In contrast, caveolin-1-overexpressing MEFs clearly showed premature irreversible growth arrest.
--
--
--
--
--
--
--
--
Human
L
delay aging
12,134,086
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
MIF
4282
protein coding
MSC
--
Aging
Prevent
Cell counting//MTT assay//qRT-PCR
The present study identified that 100 ng/ml MIF pretreatment in the presence of DOXO significantly increased MSC proliferation and cell viability compared with the DOXO group.Furthermore, MIF treatment significantly increased telomere length and restored telomerase activity, which were decreased by exposure to DOXO.
--
--
--
--
PI3K-Akt
Activation
Western blot
Compared with the control group, treatment with DOXO at a concentration of 5 mol/l significantly decreased the phosphorylation of Akt, which was restored by MIF.
Human
L
delay aging
29,207,187
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
SIRT6
51548
protein coding
HuH-7,Hep3B
--
Hepatocellular carcinoma
Prevent
Cell morphological analysis//SA--gal activity assay//qRT-PCR
SIRT6-silenced cells were flattened and larger with the characteristic morphology of cellular senescence[17]. The percentages of SIRT6-depleted HCC cells positively stained with SA-¦Â-gal were 29.1 4.9% (shSIRT6-1) and 16.2 8.4% (shSIRT6-3) Hep3B cells and 29.3 5.2% (shSIRT6-1) and 17.1 6.3% (shSIRT6-1) Huh-7 cells, while that of control HCC cells positively stained with SA-¦Â-gal was less than 1.0% Hep3B cells and 6.1% Huh-7 cells. SIRT6 silencing increased mRNA levels of IL8, CXCL1, CXCL2 and CXCL3 .
--
--
--
--
--
--
--
--
Human
HL
delay aging
27,824,900
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
CDK1
983
protein coding
RPE,U2OS
--
Aging
Accelerate
Immunostaining//SA--gal activity assay//SAHF
While long-term treatment with RO-3306 and NU6140 was toxic for cells, we found that all these markers were reduced upon combined Cdk1/2 RNAi or addition of Roscovitine, indicating that Cdk activity stimulates senescence.
p21
Upregulation
Western blot
p21 induction was reduced upon Cdk inhibition or depletion, suggesting that the remaining Cdk activity during a DDR promotes p21 expression.
--
--
--
--
Human
L
delay aging
28,345,297
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CDK2
1017
protein coding
RPE,U2OS
--
Aging
Accelerate
Immunostaining//SA--gal activity assay//SAHF
While long-term treatment with RO-3306 and NU6140 was toxic for cells, we found that all these markers were reduced upon combined Cdk1/2 RNAi or addition of Roscovitine, indicating that Cdk activity stimulates senescence.
p21
Upregulation
Western blot
p21 induction was reduced upon Cdk inhibition or depletion, suggesting that the remaining Cdk activity during a DDR promotes p21 expression.
--
--
--
--
Human
L
delay aging
28,345,297
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PRMT1
3276
protein coding
MCF-7,MDA-MB-231
--
Breast cancer
Prevent
BrdU assay//Knockdown//SA--gal activity assay//Western blot//qRT-PCR
The results revealed that both MDA-MB-231-shPRMT1 and MCF7-shPRMT1 cells showed a remarkably intensified SA-¦Â-gal staining.Also, depletion of PRMT1 significantly increased the p21 expression, and reduced the CDC2, CCNB1 and CCNA2 expression at both mRNA and protein levels, in contrast to the control cells. Moreover, BrdU incorporation was remarkably diminished in PRMT1-depletion cells compared with control cells.
ZEB1
Activation
qRT-PCR//Western blot//CHIP
We found that only the ZEB1 expression was dramatically increased at both mRNA and protein levels, while the levels of other EMT inducers such as Twist, Snail and Slug, remained basically unchanged in MCF10A-PRMT1 cells. The results of quantitative chromatin immunoprecipitation (qChIP) assay revealed a prominent elevation in the enrichment of H4R3me2as, together with the presence of PRMT1, at the region between 327 and 179 bp of the ZEB1 promoter in MCF10A-PRMT1 cells.
--
--
--
--
Human
L
delay aging
26,813,495
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
KDR
3791
protein coding
--
Colon
Colitis associated cancer
Prevent
Immunostaining//SA--gal activity assay//Western blot
Specifically, senescence-associated beta-galactosidase (S-¦Â-Gal) and the cyclin-dependent kinase inhibitor p16INK4A, were significantly upregulated in tumors of VEGFR2 IEC mice compared to controls.Altered tissue of VEGFR2?IEC mice revealed stronger expression of ¦ÃH2A.X when compared to control mice using WB and IHC analysis.
p21
--
Immunostaining//Western blot
We observed a significant difference in p21 protein expression in tumors of VEGFR2-deficient mice compared to control mice, as assessed by Western blotting and IHC.Moreover, not only the overall concentration of p21 was distinctively upregulated in tumors of VEGFR2 IEC mice, but also a predominant nuclear staining pattern could be observed.
PI3K-Akt
--
Co-IP
Using co-immunoprecipitation we were able to show an interaction of VEGFR2 and PI3K as well as AKT and p21, consistent with the idea of a functional connection of these molecules.
Human
L
delay aging
25,797,700
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
MYC
4609
protein coding
--
Liver,Lymphoma
Cancer
Prevent
SA--gal activity assay
The suppression of MYC in primary MYC-induced lymphoma and hepatocellular carcinoma resulted in senescence-associated acidic ¦Â-gal (SA-¦Â-Gal) staining.
p15INK4b//p21CIP
--//--
qRT-PCR
Among them, p15INK4b and p21CIP have been shown to be MYC targets.Upon MYC inactivation in vitro,osteosarcoma cell lines exhibited the induction of p15INK4b and p21CIP mRNA expression by quantitative RT-PCR.
--
--
--
--
Human
L
delay aging
17,664,422
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
BRCA1
672
protein coding
MEC
--
Breast cancer
Prevent
Cell morphological analysis//SA--gal activity assay
We observed that Brca1MGKO MECs exhibited a large and flattened shape, a typical morphology of cellular senescence, while MECs from the other genotypes of mice were smaller and spindle-shaped. Notably, most Brca1MGKO MECs exhibited strong, peri-nuclear staining of SA-¦Â-gal whereas only a small population of WT MECs and very few p16 -/- and p16 -/-;Brca1MGKO MECs showed positive staining.
p16
--
Immunostaining//SA-¦Â-gal activity assay//BrdU assay//Flow cytometry
We found that the percentages of Ki67-positive MECs in p16 -/- and p16 -/- ;Brca1MGKO mice (24.28¡À2.1 and 24.06¡À4.3) were significantly higher than those in WT mice (6.39¡À1.3), which in turn were significantly higher than the percentage in Brca1MGKO (2.20¡À0.2) mice. Notably, most Brca1MGKO MECs exhibited strong, peri-nuclear staining of SA-¦Â-gal whereas only a small population of WT MECs and very few p16 -/- and p16 -/-;Brca1MGKO MECs showed positive staining. Importantly, MECs from p16 -/- and p16 -/-;Brca1MGKO mice displayed similar BrdU incorporation rates, 81% for p16-/-and 79% for p16-/-;Brca1MGKO, which were significantly higher than their WT counterparts.
--
--
--
--
Human
L
delay aging
27,811,360
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
IGF1
3479
protein coding
Aortic endothelial cell
--
Atherosclerosis
Prevent
SA--gal activity assay
Incubation with 100 ng/mL IGF-1 for 24 h prior to hydrogen peroxide exposure significantly reduced expression of ¦Â-galactosidase activity, indicating that the enhanced antioxidant activity in response to IGF-1 counteracted oxidative stress induced premature cell senescence.
GPX1
Upregulation
Western blot//Enzyme activity assay//Immunostaining
Conversely£¬glutathione peroxidase (GPX) activity was upregulated in a dose-dependent and time-dependent manner.We further assessed GPX1 and GPX4 expressions by Western blot analysis. IGF-1 upregulated GPX1 (2.6-fold increase, 100 ng/mL IGF-1 vs 0 ng/mL IGF-1).Pre-exposure to IGF-1 dose-dependently suppressed ROS levels in both basal and oxidized LDL-stimulated cells. IGF-1's antioxidant effect was also time-dependent, since the ROS suppression by IGF-1 was more pronounced after 24 h exposure than at 1 h.
PI3K
--
Western blot//GPX activity assay
The phosphatidylinositide 3-kinase (PI3k) inhibitor, LY294002, significantly suppressed IGF-1 upregulation of GPX1. IGF-1 upregulation of GPX activity was also significantly suppressed by LY294002 but not by PD98059 or SB202190, confirming that IGF-1 regulation of GPX was PI3k dependent.
Human
L
delay aging
23,261,989
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TERT
7015
protein coding
GBM
--
Ataxia telangiectasia
Prevent
BrdU assay//Cell counting//SA--gal activity assay//TRF assay
The TRF assay showed that the telomere length of AT/TERT cells was extended to £¾12 kb, compared with ~4¨C11 kb for parental AT cells.Whereas parental AT cells underwent replicative senescence after ~24 PDs, AT/TERT cells survived for £¾70 to 100 PDs.
--
--
--
--
--
--
--
--
Human
L
delay aging
14,570,874
Gene
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SOX5
6660
protein coding
GBM
Brain
Glioblastoma
Accelerate
GO analysis//SA--gal activity assay
Interestingly, analysis of the genes upregulated by SOX5/6/21 instead resulted in a significant enrichment of GO-terms associated with general tumor suppressor responses, including Apoptotic process , Cellular response to stress Direct p53 effector and Senescence and Autophagy.Furthermore, forced expression of SOX5/6/21 significantly increased the number of cells that entered senescence in the three human primary GBM cell lines (KS4, G3 and #87), as measured by senescence associated gal-activity (SA-¦Âgal) and the cleavage of X-gal.
--
--
--
--
--
--
--
--
Human
HL
delay aging
28,687,615
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SOX6
55553
protein coding
GBM
Brain
Glioblastoma
Accelerate
GO analysis//SA--gal activity assay
Interestingly, analysis of the genes upregulated by SOX5/6/21 instead resulted in a significant enrichment of GO-terms associated with general tumor suppressor responses, including Apoptotic process , Cellular response to stress Direct p53 effector and Senescence and Autophagy.Furthermore, forced expression of SOX5/6/21 significantly increased the number of cells that entered senescence in the three human primary GBM cell lines (KS4, G3 and #87), as measured by senescence associated gal-activity (SA-¦Âgal) and the cleavage of X-gal.
--
--
--
--
--
--
--
--
Human
HL
delay aging
28,687,615
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SOX21
11166
protein coding
GBM
Brain
Glioblastoma
Accelerate
GO analysis//SA--gal activity assay
Interestingly, analysis of the genes upregulated by SOX5/6/21 instead resulted in a significant enrichment of GO-terms associated with general tumor suppressor responses, including Apoptotic process , Cellular response to stress Direct p53 effector and Senescence and Autophagy.Furthermore, forced expression of SOX5/6/21 significantly increased the number of cells that entered senescence in the three human primary GBM cell lines (KS4, G3 and #87), as measured by senescence associated gal-activity (SA-¦Âgal) and the cleavage of X-gal.
p53
Upregulation
Western blot
Notably, despite a robust increase in p53 protein levels upon forced SOX21 expression, a corresponding upregulation of TP53 gene expression could not be detected.
--
--
--
--
Human
HL
delay aging
28,687,615
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TP53
7157
protein coding
PA-1(ATCC)
--
Aging
Prevent
Cell morphological analysis//SA--gal activity assay//Western blot
We found that an increase in p16INKA4A expression was detected from days 4 5 post-treatment in TP53-silenced cells, corresponding with the partial release from G2 arrest and increase in (aberrant) mitoses.In control cells, ETO treatment evoked a modest but measurable increase in cell size (hypertrophy) and weak sa-¦Â-gal staining at later time points. However, this was greatly accelerated by the silencing of TP53 with strong sa-¦Â-gal staining in a significantly (p < 0.05, n = 3) higher proportion of cells in TP53-silenced (mean = 70.7%) vs. control (mean = 38.7%) samples at day 5 post-treatment.
OCT4A//p21
--//--
Western blot
Transfection of PA-1 cells with TP53-siRNA successfully silenced TP53 expression throughout the time-course and, as expected, inhibited the increase in P21CIP1 in response to ETO treatment. However, unexpectedly, silencing of TP53 also largely inhibited the upregulation of OCT4A. To confirm this surprising finding, we repeated these experiments using PA-1 cells stably transfected with a shRNA vector directed against a different region of TP53 and saw the same results with diminished OCT4A upregulation.
--
--
--
--
Human
L
delay aging
23,287,532
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
AGT
183
protein coding
VSMC
Aorta
Atherosclerosis
Accelerate
SA--gal activity assay
SA ¦Â-gal activity was significantly increased in Ang II¨Ctreated VSMCs compared with control cells.Consistent with our in vitro data, treatment with Ang II enhanced SA ¦Â-gal activity in the aortas of apoE-deficient mice.
--
--
--
--
p53-p21
Upregulation
Western blot
Moreover, expression of p21 and p53 was elevated in Ang II¨Ctreated VSMCs.
Human
L
delay aging
16,908,765
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
BAG3
9531
protein coding
A172
--
Glioblastoma
Prevent
Cell morphological analysis//Cell viability assay//Colony formation assay//Flow cytometry//Knockdown//SA--gal activity assay
Of note, cells treated with BIS-specific siRNA (SiBIS) showed typical senescence-related phenotypic changes in a time-dependent manner: large, flattened morphology and gradually increased senescence-associated ¦Â-galactosidase (SA-¦Â-Gal) staining: 86.8% of cells were positive for SA-¦Â-Gal staining at 5 days after transfection. The proliferation rate was considerably slower in BIS knockdown cells compared in control cells as determined by relative increase in the cell numbers, 1.7-fold and 5.6-fold at day 5, respectively. The colony-forming ability was also prominently suppressed in SiBIS-treated cells, by 92% compared with control siRNA (SiCON)-treated cells. In addition, cell cycle profile demonstrated that the significant accumulation of cells in the G1 phase of the cell cycle accompanied by decrease in the cell populations in S or G2/M phase in SiBIS-treated cells, showing that the proportion of G1 phase was 84.7% and 59.9% in SiBIS- and SiCON-treated cells, respectively, at day 5.
p27
--
Western blot//Knockdown
The p27 levels were also progressively accumulated as increasing concentration of SiBIS.
STAT3-SKP2-p27
--
Western blot//Knockdown
Immunoblottig showed that SKP2 levels were prominently decreased as BIS decreased, to 42% of control cells at day 5, which was inversely correlated with p27.We found that the phosphorylation of STAT3, representing the activated form of STAT3 as a transcriptional regulator, was profoundly decreased by BIS depletion in a time-dependent manner as determined by immunoblotting using specific antibodies for phospho-STAT3 (p-STAT3) that target pS727 and pY705.The depletion of STAT3 activation, accompanied with a decrease in Activate p-STAT3, both pY705 and pS727, downregulated SKP2 but increased p27 expression, comparable to what was observed following BIS depletion.
Human
L
delay aging
25,412,315
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CDKN2A
1029
protein coding
HCEC
--
Aging
Accelerate
Immunostaining//qRT-PCR
Morphologically, the cells became flattened at Day 42 and floating at Day 49, suggesting an end replication and an end of cell life 20. During the period from Day 42 to Day 49 after the establishment of contact-inhibition in HCECs, there was continuous nuclear presence of p16INK4a and gradual upregulation of senescence markers such as ASF1A and GLB1.
Bmi1
--
Knockdown//qRT-PCR
The same results were held up by Day 42 following weekly knockdown of p120-Kaiso, resulting in unique downregulation of p16INK4a transcript but upregulation of Bmi1 transcript .
--
--
--
--
Human
L
delay aging
27,739,458
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
CTNND1
1500
protein coding
HCEC
--
Aging
Prevent
Immunostaining//Knockdown//SA--gal activity assay//qRT-PCR
In contrast,weekly knockdowns of p120-Kaiso siRNAs from Day 7 maintained the normal HCEC hexagonal morphology and density till Day 49 as reported11 and prohibited nuclear translocation of p16INK4a, expression of senescence markers,and increase of senescent cells during the entire experimental period.
p16//Bmi1
--//--
Knockdown//qRT-PCR
The same results were held up by Day 42 following weekly knockdown of p120-Kaiso, resulting in unique downregulation of p16INK4a transcript but upregulation of Bmi1 transcript .
JAK2-STAT3//RhoA-ROCK
--//--
Knockdown//qRT-PCR//Western blot
In contrast, 5 weekly knockdown of p120-Kaiso since Day 7 dramatically activated not only RhoA as reported11 but also promoted a sustained transcript expression of JAK2 and STAT3.
Human
L
delay aging
27,739,458
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
ZBTB33
10009
protein coding
HCEC
--
Aging
Prevent
Immunostaining//Knockdown//SA--gal activity assay//qRT-PCR
In contrast,weekly knockdowns of p120-Kaiso siRNAs from Day 7 maintained the normal HCEC hexagonal morphology and density till Day 49 as reported11 and prohibited nuclear translocation of p16INK4a, expression of senescence markers,and increase of senescent cells during the entire experimental period.
p16//Bmi1
--//--
Knockdown//qRT-PCR
The same results were held up by Day 42 following weekly knockdown of p120-Kaiso, resulting in unique downregulation of p16INK4a transcript but upregulation of Bmi1 transcript .
JAK2-STAT3//RhoA-ROCK
--//--
Knockdown//qRT-PCR//Western blot
In contrast, 5 weekly knockdown of p120-Kaiso since Day 7 dramatically activated not only RhoA as reported11 but also promoted a sustained transcript expression of JAK2 and STAT3 .
Human
L
delay aging
27,739,458
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
PRMT6
55170
protein coding
MCF-7,MDA-MB-231
--
Breast cancer
Prevent
Cell counting//Cell morphological analysis//Knockdown//SA--gal activity assay
PRMT6 KD in both cell lines inhibits growth and specifically leads to a reduction of cells in S phase.Both sh-1 and sh-2 cells show a clear change in morphology, with cells looking bigger and flatter as compared with the scrambled control shRNA (sh-c) . As the morphology and the cell cycle arrest was reminiscent of cellular senescence, we confirmed this by SABG on the PRMT6 KD and control cells.
p21
Downregulation
qRT-PCR//Western blot//CHIP
Although p16 levels did not change in either MCF7 [the p16 locus is deleted in these cells (24)] or MDA-MB-231 (wt p16), we observed a striking upregulation of p21 messenger RNA (mRNA) and protein levels. In MCF7 cells, the p21 promoter is bound by PRMT6, methylated on H3R2me2a and H3K27me3, and p21 is expressed at low levels.
--
--
--
--
Human
HL
delay aging
22,987,071
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
MYBL2
4605
protein coding
HAEC
--
Aging
Prevent
Cell morphological analysis//SA--gal activity assay
Importantly, the downregulated B-myb cells showed morphological change including a large-flat shape binucleation and polyploidy after 7 days. B-myb-silenced cells also displayed an increase in the proportion of SA-¦Â-gal-positive cells compared with the control.
--
--
--
--
ROS-p53-p21
--
Western blot//SA-¦Â-gal activity assay//Immunostaining
Interestingly, the protein levels of p53 and p21 were significantly increased in B-myb-silenced cells compared with that of the controls.The upregulation of p- p53, p53 and p21 in B- myb knockdown cells could be abolished in the presence of PFT¦Á. PFT¦Á could also obviously attenuate the upregulation of SA- ¦Â- gal activity in B- myb knockdown cells. The production of intracellular ROS was significantly increased in B- myb- silenced cells.Bmyb- silenced cells incubated with NAC could significantly diminish the upregulation of p- p53, p53 and p21.
Human
L
delay aging
27,878,894
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
KLF6
1316
protein coding
NIH-3T3
--
Aging
Accelerate
SA--gal activity assay
The quantification of SA-¦Â-Gal positive cells showed that the ectopic expression of KLF6 was able to increase the cellular senescence index.
--
--
--
--
--
--
--
--
Human
L
delay aging
31,824,948
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SENP1
29843
protein coding
HFF
Skin
Aging
Prevent
BrdU assay//Cell morphological analysis//Flow cytometry//SA--gal activity assay
In addition, shSenp1 caused substantial inhibition of cell proliferation.Cell cycle analysis showed that the fraction of HFFs in the G1 phase of the cell cycle increased from 53% in mock-infected controls to 76% in cells 5 days after infection with Senp1 shRNA.Cells infected with Senp1 shRNAs also exhibited an enlarged, flattened morphology characteristic of HFFs that have undergone replicative senescence.Greater than 90% of HFFs exposed to any of the three Senp1 shRNAs (#2, 3, and 8) exhibited blue-green cytoplasmic staining indicative of SA-¦Âgal activity, whereas the vast majority of mock-infected HFFs or HFFs expressing the scrambled control shRNA were negative for S-A¦Âgal activity and exhibited normal morphology.Repression of Senp1 induced a gradual increase in cellular autofluorescence compared to shControlinfected HFFs, reaching approximately sixfold at 10 days after shRNA infection.
--
--
--
--
p53
--
qRT-PCR
Although there was no significant change in levels of p53 mRNA, repression of Senp1 resulted in enhanced transcriptional activity of p53.
Human
L
delay aging
18,616,636
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CDK2
1017
protein coding
BJ
--
Aging
Prevent
Immunostaining//SA--gal activity assay//Western blot
Indeed, in both human BJ fibroblasts and in MEFs, constitutive ectopic expression of CDK2 abrogated senescence in response to either DNA damage (irradiation), or oncogenic stress (HRasV12 transduction), as evidenced by continued proliferation by day 14 and absence of SABG staining,along with reduction in other protein markers of senescence.
p53//Rb
--//--
Western blot//qPCR
The lack of repression of CDK2 in p53-null cells and tissues suggested that CDK2 down-regulation is a downstream consequence of p53 activation.As expected, genetic ablation of Rb resulted in increased baseline protein levels of Cdk2.
--
--
--
--
Human
L
delay aging
25,149,358
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
HMGA1
3159
protein coding
IMR-90
--
Aging
Accelerate
Cell morphological analysis//SA--gal activity assay//SAHF//Western blot
Cells expressing high levels of either HMGA protein underwent an acute cell cycle arrest and displayed features of senescence, including increases in p16INK4a and p53, a senescent morphology, and elevated SA-¦Â-galactosidase activity.These cells also acquired SAHF-like foci that contained HMGA and me-K9H3.
p16
--
Western blot
HMGA1-induced arrest and SAHF formation were clearly impaired in cells expressing sh-p16, despite having similar levels of transgene expression.
--
--
--
--
Human
HL
delay aging
16,901,784
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
TERT
7015
protein coding
mTert?/?Fibroblast
--
Aging
Prevent
Western blot
In mTert-/- cells, the levels of the senescence biomarkers p53 and p21 were increased sharply at the M stage, in response to critically shortened telomeres at the same stage. However, unlike mTert -/- cells, the activation of the p53/p21 pathway in mTert+/+ cells immediately triggered the DDR response and up-regulated the expression of ATM, PARP1, and CHK1 at the M stage, and their elevated expressions were maintained through the L stage.
--
--
--
--
--
--
--
--
Human
HL
delay aging
31,481,614
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
PROM1
8842
protein coding
CD1331 RPC
--
Acute kidney injury
Prevent
SA--gal activity assay
The number of ¦Â-galactosidase expressing cells undergoing senescence appeared significantly higher in the CD133-Kd cells compared to their CD1331 control.The evaluation of T/S ratio revealed a significant reduction in telomere length in CD133-Kd cells compared to their CD1331controls,suggesting an implication of CD133 in the prevention of cell senescence.
--
--
--
--
Wnt-¦Â-catenin
Activation
qRT-PCR//Western blot//Luciferase reporter assay
Interestingly, CD133-Kd cell lines showed a reduced expression of Wnt4 after cisplatin-induced damage in respect to GFP cells. In addition, CD133-Kd cells showed an impaired response to the pharmacological activation of Wnt signaling pathway using CHIR99021 [31].Luciferase activity in CD1331 RPCs was significantly higher than the one in CD133-Kd cell lines, indicating a reduced ¦Â-catenin activation in CD133-Kd cells. Western blot analysis after immunoprecipitation of E-cadherin showed the concomitant presence of CD133 and b-catenin, suggesting that CD133 and E-cadherin may form a complex at the membrane level with ¦Â-catenin, thus limiting its cytoplasmic degradation. Indeed, ¦Â-catenin levels were significantly lower in CD133-Kd cells in respect to CD1331 RPCs both in basal culture conditions and upon stimulation with b-catenin stabilizer CHIR99021 .Indeed, ¦Â-catenin levels were significantly lower in CD133-Kd cells in respect to CD1331 RPCs both in basal culture conditions and upon stimulation with b-catenin stabilizer CHIR99021.
Human
HL
delay aging
29,431,914
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
STAG2
10735
protein coding
BJ-2
--
Cancer
Accelerate
Immunostaining//SA--gal activity assay
We observed a significant decrease in the levels of H2AX/p53BP1 DNA damage foci in SA2-depleted late PD cells.We observed a significant decrease in ¦Â-gal positive cells in SA2-depleted late PD cells.
--
--
--
--
--
--
--
--
Human
L
delay aging
28,819,029
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CHEK1
1111
protein coding
Fibroblast
Foreskin
Aging
Accelerate
BrdU assay//Cell counting
Numbers of Chk1 siRNA- and FANCD2 siRNA-transfected cells decreased equally until day 3 after irradiation.Forty-eight hours after siRNA transfection, fibroblasts were incubated with BrdU for 24 h. Four per cent of the control siRNA-treated fraction stained positive for the nucleotide analogue. Chk1 depletion induced BrdU incorporation in 15% of the cells.
--
--
--
--
--
--
--
--
Human
L
delay aging
21,995,812
Gene
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FANCD2
2177
protein coding
Fibroblast
Foreskin
Aging
Accelerate
BrdU assay//Cell counting//Knockdown
Numbers of Chk1 siRNA- and FANCD2 siRNA-transfected cells decreased equally until day 3 after irradiation.Forty-eight hours after siRNA transfection, fibroblasts were incubated with BrdU for 24 h. Four percent of the control siRNA-treated fraction stained positive for the nucleotide analogue.Remarkably, only 9% of the FANCD2 siRNA- transfected fibroblasts were BrdU-positive.
--
--
--
--
--
--
--
--
Human
L
delay aging
21,995,812
Gene
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FBXO5
26271
protein coding
RPE
--
Aging
Prevent
BrdU assay//Cell morphological analysis//Knockdown//SA--gal activity assay
Cells lacking Emi1 were large and flattened and contained relatively large nuclei, a cellular morphology remi- niscent of cellular senescence.Approximately 37 to 65% of RPE cells stained positive for SA-¦Â-gal at 4 or 5 days after Emi1 siRNA treatment, a phenotype that was recapitulated using two additional siRNA targeting sequences.We extended this analysis and detected a significant reduction in the prolif- erative capacity of RPE cells treated with human Emi1 siRNA.
APC/C//E2F//Cyclin E1//ATM
--//--//--//--
Knockdown//Cell morphological analysis//SA-¦Â-gal activity assay//Western blot
Importantly, senescence induction upon Emi1 depletion required APC/C activity, as it was rescued upon codepletion of Cdh1, and was also observed in HCT116 and HeLa cells.Taken together, Emi1 knockdown results in APC/C activation and a consequent decrease in E2F target protein expression with the exception of an increase in cyclin E1 protein levels.A pronounced decrease in the percentage of senescent cells was measured when cells were grown for three days in the presence of KU-55933 before SA-¦Â-gal staining (25% versus 75% in dimethyl sulfoxide-treated cells).In addition, ATM inhibitor-treated cells displayed a change in morphology from round and flattened (senescent-like) to more elongated and spindle shaped.
--
--
--
--
Human
HL
delay aging
17,875,940
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RB1
5925
protein coding
MSC
--
Aging
Prevent
Alizarin red S staining//MTT assay//SA--gal activity assay//Western blot//qRT-PCR
Overexpression of RB in late-passage MSCs increased the proliferation rate and differentiation potentials; decreased the expression of senescence-associated markers such as p21, p16, and APO-1; and reduced ¦Â-gal staining.
DNMT//c-JUN
Upregulation//Binding
Western blot
As expected, overexpression of RB in late-passage MSCs increased the protein levels of DNMT1.We found that c-JUN knockdown reduced DNMT1 expression in early- passage MSCs, but not late-passage MSCs, although the expression of RB in early-passage MSCs was not suppressed.
--
--
--
--
Human
L
delay aging
25,455,074
Gene
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
CIP2A
57650
protein coding
AGS
--
Gastric cancer
Prevent
Knockdown//SA--gal activity assay
In control AGS cells, less than 5% of them were ¦Â-Gal-positive, whereas up to 30% of CIP2A siRNA-treated cells were stained with ¦Â-Gal.
--
--
--
--
--
--
--
--
Human
L
delay aging
18,559,589
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
IL1B
3553
protein coding
HUVEC
--
Aging
Accelerate
SA--gal activity assay//Western blot
To address this, primary HUVECs were treated with recombinant human IL-1¦Â for 6 days, the cell senescence was confirmed by SA-¦Â-galactosidase activity.Furthermore, protein expression levels of senescence markers, such as p53 and p21, were also significantly upregulated in a time dependent way after IL-1¦Â treatment with peak values of 2.8 fold and 3.1fold respectively.
Caspase-1//NLRP3
--//--
Western blot
Interestingly, in the presence of z-YVAD-fmk, a caspase-1 inhibitor, mature IL-1 processing was abolished in senescent HUVECs but pro-IL-1 expression remained unchanged .SiNLRP3 or siASC transfection in the cells could significantly decrease their protein expression induced by bleomycin. As expected, IL-1 productions were also strongly attenuated in these silent senescent cells, but there was no significant effect in pro-IL-1 expression.
--
--
--
--
Human
L
delay aging
28,064,010
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SATB1
6304
protein coding
MEF
--
Breast cancer
Accelerate
Cell morphological analysis//Flow cytometry//SA--gal activity assay
MEFs expressing SATB1 grew markedly slower than controls,stained positive for ¦Â-galactosidase activity and had a flat morphology,indicating a large fraction of SATB1-expressing cells displayed signs of senescence.Consistent with this, we observed a large G1/G0 and a diminished S/G2 population.
p16
Upregulation
SA-¦Â-gal activity assay//Western blot//Flow cytometry
In contrast to wild-type MEFs, SATB1 expression did not cause growth inhibition in p16-/-MEFs. Proliferation was comparable between SATB1- and control virus-infected p16-/- MEFs, and no change in senescence markers or cell cycle distribution was observed.
Rb-E2F1
--
SA-¦Â-gal activity assay//Co-IP
ATB1-expressing TM MEFs infected with RB virus had a markedly higher fraction of senescent cells compared with TM MEFs without SATB1. Both RB-HA and E2F1-HA were immunoprecipitated by Flag-tagged SATB1.The reciprocal interactions were also detected with HA-tagged E2F1 and RB, showing that SATB1 can interact with RB/E2F1 complexes.
Human
L
delay aging
23,686,316
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PAK4
10298
protein coding
MEF
--
Aging
Accelerate
Cell morphological analysis//SA--gal activity assay
We found that Pak4-infected cells stained positive for SA-¦Â-Gal activity.Interestingly, Pak4-expressing cells showed a large and flat shape.
p16//p19ARF//Raf
Upregulation//Upregulation//Activation
SA-¦Â-gal activity assay//Western blot
As expected, the control wild-type MEFs were readily arrested after infection with activated Pak4 or RasV12.However,when Pak4 was expressed in primary p19ARF/p16INK4a null MEFs ,the cells continued to grow and did not senesce.In addition£¬activated Pak4 led to a significant increase in p16INK4a and p19ARFlevels.Furthermore, Pak4 was able to induce phosphorylation of overexpressed and endogenous Raf on serine 338 in vivo, and it directly phosphorylated Raf on this site in vitro. In vitro kinase assays indicated that Pak4 could also stimulate Raf kinase activity.
ERK-MAPK
Activation
Western blot//BrdU assay//SA-¦Â-gal activity assay
We found that ERK activity was strongly stimulated in primary cells stably expressing Pak4 .?Furthermore, treating cells with a chemical inhibitor of the MEK-ERK pathway partially abrogated Pak4-induced premature arrest in primary fibroblasts and led to a decrease of about 50% in the number of SA-¦Â-Gal-positive cells compared to what was seen in the absence of the drug.
Human
L
delay aging
16,227,603
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CDC73
79577
protein coding
293T,A549,HUVEC
--
Cancer
Prevent
EdU assay//Knockdown//SA--gal activity assay
Higher percentage of positive SA-¦Â-Gal staining cells was observed in all the three CDC73-KD cells. Moreover, reduced EdU incorporation and cell proliferation were detected upon depletion of CDC73 , indicating decreased expression of CDC73 can reduce DNA synthesis, which is also a well-known molecular phenotype of senescent cells.
--
--
--
--
p53-p21
--
Western blot//Knockdown
However, both mRNA and protein levels of p53 and p21 were remarkably increased after CDC73 knockdown in 293T cells.Similarly, the protein level of p21 was significantly increased in CDC73-deficient HUVECs and A549 cells . These results support the notion that reduced CDC73 expression may induce senescence through the p53-p21 pathway.
Human
HL
delay aging
29,621,547
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PRODH
5625
protein coding
U2OS
--
Aging
Accelerate
EdU assay//SA--gal activity assay
In accordance with our previous results, ectopic expression of PRODH modestly induced senescence in U2OS cells, as judged using SA-¦Â-Gal and EdU assays.Furthermore, the substrate proline added to the medium enhanced the SA-¦Â-Gal activation induced by PRODH overexpression in a dose-dependent manner, which suggests that PRODH induces senescence through the enzymatic activity.
--
--
--
--
--
--
--
--
Human
L
delay aging
28,264,926
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
tax
1491938
protein coding
HeLa
--
Aging
Accelerate
Western blot
We use the degradation of I-kBa as an indicator of NF-kB activation and the decrease in cyclin B1 and Skp2 levels with concomitant increase in the levels of p21 and p27 as surrogate markers for senescence induction.Wild-type Tax (WT) and those Tax mutants (V89A and M47) that are potent activators of NF-kB greatly reduced the levels of cyclin B and Skp2, and dramatically elevated p21 and p27 expression.
RelA//HBZ
--//--
Western blot//Knockdown//Luciferase reporter assay
Most interestingly, knockdown of RelA and to a rather limited extent, that of RelB, but not that of c-Rel or p100 prevented Tax-induced senescence.This is evidenced by the proliferation of EGFP+ HeLa-G/RelAKD cells and the absence of p21 and p27 up-regulation therein after Ad-Tax transduction.Like native HBZ, Flag-HBZ efficiently inhibits NF-kB activation by Tax.
NF-¦ÊB
Activation
Western blot
Tax mutants that are impaired in NF-kB activation , in comparison, had only moderate or no effect on cyclin B, Skp2, p21, or p27.
Human
L
delay aging
21,552,325
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SKP2
6502
protein coding
MEF
--
Prostate cancer
Prevent
SA--gal activity assay
We also found that the ability of Ras to induce cellular senescence was far greater in Skp2-/- MEFs than in wild-type MEFs.
p27//p21//ATF4
--//--//--
Western blot
Although p53 and p19Arf levels remained unchanged, we found that Skp2 deficiency cooperated with Pten inactivation or Arf loss to induce p27 expression. p21 expression was also increased in Pten+/- Skp2-/- and Arf-/- Skp2-/- MEFs.In contrast, Atf4 was markedly induced in Pten+/- Skp2-/- MEFs. Likewise, we also observed a marked increase in Atf4 protein levels, but not p-Perk, in Arf-/- Skp2-/- MEFs.
--
--
--
--
Human
L
delay aging
20,237,562
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
KCNJ12
3768
protein coding
PC-3,DU 145,LNCaP,MKN74,SNU638,SNU668,MCF-7,SK-BR-3,T47D
--
Cancer
Prevent
Cell morphological analysis//Knockdown//SA--gal activity assay//Western blot
Doxorubicin-treated PC-3 cells overexpressing Kir2.2 exhibited improved survival, decreased growth inhibition, and reduced accumulation of SA-¦Â-Gal compared with doxorubicin-treated control PC-3 cells.All tested cancer cells from different tumor tissues, including prostate (PC-3, DU145, and LNCaP), stomach (MKN74, SNU638 and SNU668), and breast (MCF7, SK-BR3, and T47D),displayed cellular enlargement and flattening and were positive for SA-¦Â-Gal staining following knockdown of Kir2.2, which lasted for up to 10 days .Previously reported senescence marker proteins,including PAI-1, osteonectin, and transglutaminase, were induced after Kir2.2 knockdown in the tested cancer cells.
p27
--
Knockdown//Immunostaining//Western blot
Kir2.2 knockdown induced ROS accumulation. Rescue of Kir2.2 levels by Kir2.2 overexpression restored intracellular ROS to levels comparable with those in controls, indicating that the accumulation of ROS was directly de pendent on the level of Kir2.2.p27 knockdown decreased ROS generation and the ROS scavenger NAC prevented p27 synthesis in PC-3 cells after transfection of siKir2.2.
--
--
--
--
Human
L
delay aging
20,841,375
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
HRAS
3265
protein coding
MEF
--
Aging
Accelerate
Cell morphological analysis
In the case of overexpressed oncogenic HRas, cells were analyzed 6 days post-infection when, as expected, cells had a clear senescent morphology.
--
--
--
--
--
--
--
--
Human
L
delay aging
19,421,407
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CDKN2A
1029
protein coding
2BS
--
Aging
Accelerate
Cell morphological analysis//Flow cytometry//SA--gal activity assay
The 2BS/p16 cells showed increasing gross en- largement, flattening, and accumulation of granular cytoplas- mic inclusions.Only sporadic SA-¦Â-gal-positive cells were seen in 2BS/ASp16 (A5, PD45) and young (PD29) cells, whereas almost all of 2BS/p16 (P3, PD43) cells were strongly stained, as were the senescent 2BS control cells (PD58).p16INK4acan inhibit the activity of CDKs, thereby blocking the entry of proliferating cells from G1to S phase.
--
--
--
--
p16-CDK4-pRb
--
Western blot
p16INK4acan inhibit the activity of CDKs,thereby blocking the entry of the proliferating cells to S phase through the p16INK4a/CDK4/cyclin D/pRB pathway. The function of p16INK4a is to maintain pRB in its hypophosphorylated Activate state.pRB phosphorylation status in 2BS/ASp16 (A10, PD50) cells (lane 1) is similar to that in young cells (PD25) (lane 2), which is considerably higher than that of senescent cells .
Human
L
delay aging
11,606,567
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SOX10
6663
protein coding
0002-ARM,UACC 1022,0380-MMU
--
Melanoma
Prevent
Cell counting//Cell morphological analysis//SA--gal activity assay//SAHF
Significant increases in SA-¦Â-Gal activity were seen in all 3 lines when stably transduced with shSOX10 hairpins, suggesting that loss of SOX10 induces senescence in melanoma cells. Another hallmark of cellular senescence, senescence-associated heterochromatin foci (SAHF), was observed upon chromatin binding protein HP1b immunostaining .One week after infection, the shSOX10 lines showed reduced SOX10 protein levels and the cells became enlarged, flat, and translucent ). These cells also showed arrested or slowed growth.
E2F1//Rb//MITF//p16//p27//p21
--//--//--//--//--//--
Western blot
In all three melanoma lines, SOX10 knockdown led to reduced levels of E2F1 protein and total RB protein.Reduced MITF protein was observed upon shSOX10 knockdown in both 0380-MMU and 0002-ARM cells.We observed moderate p16 expression in 0380-MMU cells;however,p16 levels remained unchanged following SOX10 knockdown. Weconsistently observed increases in p27 levels in all three cell lines as a result of SOX10 knockdown, similar to previous MITF knockdown studies. However, SOX10 knockdown caused an increase in p21 protein in all three-cell lines, thus showing a distinct difference from the MITF knockdown results.
--
--
--
--
Human
HL
delay aging
23,913,827
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
E2
1489080
protein coding
HeLa
--
Aging
Accelerate
SA--gal activity assay
After infection with the E2 virus, virtually all HeLa/LXSN cells displayed intense blue staining indicative of SA-¦Â-gal activity and cellular senescence.The E2-infected HeLa/16E7 cultures contained cells displaying a flattened morphology and SA¦Â-gal activity interspersed with numerous proliferating colonies.
E7
--
SA-¦Â-gal activity assay//Cell morphological analysis
In contrast, as reported previously, the E2-infected HeLa/16E7 cultures contained cells displaying a flattened morphology and SA-¦Â-gal activity interspersed with numerous proliferating colonies that did not stain, demonstrating partial protection from senescence by the wild-type HPV16 E7 protein.
Rb
Activation
Western blot
The E2 protein repressed expression of cyclin A in HeLa/LXSN cells, indicating that the Rb pathway was activated.
Human
L
delay aging
15,126,344
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SOX5
6660
protein coding
Glial cell
--
Glioma
Accelerate
Cell morphological analysis//SA--gal activity assay
We performed SA-¦Â-gal staining of these cells and found that there were an increased number of SA-¦Â-gal-positive cells in Ink4a-/- cells infected with Sox5+PDGFB or Sox5 alone.In Arf-/- cells, there was an increased number of SA-¦Â-gal-stained cells in Sox5-infected cells only.
p27//Akt
Upregulation//Downregulation
Western blot
When analyzing p27Kip1protein levels, we found that p27Kip1was clearly upregulated in the Sox5-infected Ink4a-/- cells compared with control and PDGFB-infected cells and that it remained high in the Sox5+PDGFB-infected cells.The total and activated levels of Akt were decreased specifically in the Sox5-stimulated Ink4a-/- cells compared with control and PDGFB cells and remained lower in the Sox5+PDGFB-infected cells compared with PDGFB alone.
PDGFB
--
Immunostaining
To study the proliferation status of Sox5 + PDGFB infected Ink4a-/- and Arf-/- cells, expression of Ki67, a marker of cell proliferation, was analyzed with triple immunofluorescence stainings . In Ink4a-/- cells, HA(PDGFB expression) and V5 (Sox5 expression) double-positive cells were completely negative for Ki-67, whereas in Arf-/- cells, about 20% of the HA + V5 double-positive cells also expressed Ki-67 .
Human
HL
delay aging
19,219,070
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
G6PD
2539
protein coding
HFF
--
Aging
Prevent
Cell morphological analysis//SA--gal activity assay
There was an increase in the percentage of SA-¦Â-Gal positive HFF1 cells, from less than 8% at PDL 22 to about 50% at PDL 52, and to over 95% at PDL 60. The majority of HFF3 cells remained SA-¦Â-Gal negative at PDL 52, and a few cells (less than 5%) were stained positive at PDL 60.Some HFF1 cells showed the senescent morphology at PDL 22, and by PDL 60, nearly all the cells were senescen. By contrast, the HFF3 cells did not show such morphology even at passages up to PDL 60.
--
--
--
--
--
--
--
--
Human
L
delay aging
10,980,404
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
WIF1
11197
protein coding
LN-229,LN319
--
Glioblastoma
Accelerate
Cell morphological analysis//Flow cytometry//Immunostaining//SA--gal activity assay
We detected an increased percentage of senescence-like cells in WIF1-transfected clones with a positive relationship to WIF1 secretion of the respective clones. Similar differences were observed upon double staining of the cells with SA-¦Â-galactosidase and DAPI, which visualizes nuclear morphology. In the LN319- and LN229-derived WIF1-overexpressing clones, we scored an increased population of both multinucleated and SA-¦Â-galactosidase positive cells.
--
--
--
--
Wnt
Downregulation
Luciferase reporter assay
Indeed, forced expression of WIF1 inhibited Wnt activity in a dose-dependent manner.
Human
HL
delay aging
21,642,372
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CXCL8
3576
protein coding
HUVEC
--
Aging
Prevent
Flow cytometry//PI staining//SA--gal activity assay
However, IL-8 dose-dependently inhibited the increase of SA-beta-gal-positive cells when co-incubated with HUVECs.These results suggested that 150 ¦ÌM H2O2 inhibited cell cycle progression at G1 phase, however IL-8 prevented this effect.
hTERT
Upregulation
qRT-PCR
QRT-PCR analysis showed that H2O2 down-regulated the expression of hTERT mRNA and the effect was suppressed by IL-8 in a dose- dependent manner.
NF-¦ÊB//p38 MAPK
Downregulation//Downregulation
Western blot
H2O2 was found to activate NF-¦ÊB and p38(MAPK) pathway in a time-dependent manner, but the effect was suppressed by pretreatment of IL-8.
Human
L
delay aging
23,597,430
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NAT10
55226
protein coding
HGPS
--
Hutchinson-Gilford progeria syndrome
Accelerate
SA--gal activity assay
Similarly, although NAT10 depletion strongly decreased the proportion of HGPS cells positive for senescenceassociated -galactosidase, this was not the case when NUP153 or TNPO1 was codepleted with NAT10.
--
--
--
--
TNPO1
--
Knockdown//Microarray//Western blot
We observed that 70% of the genes showing significantly increased or decreased expression upon NAT10 depletion alone in control fibroblasts were not modified anymore upon simultaneous depletion of TNPO1, despite similar NAT10 protein knockdown.
Human
HL
delay aging
29,970,603
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NUTF2
10204
protein coding
HGPS(HGPS 11513),Fibroblast
--
Hutchinson-Gilford progeria syndrome
Prevent
Knockdown//SA--gal activity assay
In addition to the effect on chromatin, disrupting nuclear Ran by depleting NTF2 also promoted the entry of control fibroblasts into senescence as measured by senescence-associated -galactosidase staining.
--
--
--
--
--
--
--
--
Human
HL
delay aging
29,970,603
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OPA1
4976
protein coding
--
Liver,Skin,Colon
Aging
Prevent
SA--gal activity assay//Western blot
To further support the aging phenotype, we checked several markers of aging like ¦Â-galactosidase and p21. Both are significantly increased in liver, skin, and gut.
--
--
--
--
--
--
--
--
Human
L
delay aging
28,552,492
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
E2
1489080
protein coding
HeLa/LXSN-1
--
Cervical cancer
Accelerate
SA--gal activity assay
After E2 expression, HeLa/LXSN-1 cells displayed a flattened morphology and intense blue staining indicative of SA-Gal activity and senescence.
--
--
--
--
p53
Upregulation
SA-¦Â-gal activity assay//Western blot
Strikingly, the E2 protein did not induce the HeLa/16E7-p53CTF cells to display blue staining or senescent morphology;rather, the cells formed colonies that did not stain for SA-Gal activity.Full-length, wild-type p53 was expressed in all of the cell lines, and as expected, its expression was markedly induced by E2-mediated E6 repression.
Human
L
delay aging
15,047,823
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SATB1
6304
protein coding
--
Brain
Parkinson's disease
Prevent
Knockdown//SA--gal activity assay//Western blot
Given this, we sought to investigate whether SATB1KO DA neurons present the classical features of cellular senescence. First we observed a dramatic increase in acidic lysosomal (SA-¦Â-gal) activity, the hallmark senescence biomarker.We found upregulation of the majority of SASP factors at 50 days of differentiation in SATB1KO DA neurons versus WT neurons. We confirmed SASP activation by western blotting. In the conditioned medium of SATB1KO neurons, we found IGFBP7, which was absent in the medium of WT neurons.
p21
Downregulation
Western blot//CHIP//Knockdown//Luciferase reporter assay
Both CDKN1A transcription and p21 protein levels were significantly increased in SATB1KO DA neurons.Using ChIP-seq in DA neurons, we found that SATB1 binds the regulatory region of CDKN1A.To determine whether SATB1 directly represses CDKN1A, we performed a luciferase reporter assay and found that, under conditions of SATB1 knockdown, CDKN1A promoter activity was significantly increased .
--
--
--
--
Human
HL
delay aging
31,543,366
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SHH
6469
protein coding
Human endometrial stem cell
--
Recurrent pregnancy loss
Prevent
SA--gal activity assay//Western blot
Importantly, SHH significantly attenuated replicative senescenceinduced SA-¦Â-Gal activity.The oxidative stress-induced expression of these senes- cence-associated (L-6, p16,p18, and p21) was significantly attenuated by SHH treatment. We conducted the additional set of experiments to further confirm the alleviating effects of SHH on oxidative stress- induced senescence with additional aging markers, such as RB1 and P14ARF. Consistently, oxidative stress-induced expression of these senescence-associated markers was significantly attenuated by SHH treatment.
SERPINB2
Downregulation
Western blot//qRT-PCR
Consistent with our hypothesis, replicative and oxidative stress-induced senescence significantly enhanced SERPINB2 expression at both the mRNA and protein levels.SHH treatment markedly suppressed SERPINB2 expression in endometrial stem cells. Importantly, senescence-induced SERPINB2 expression was significantly attenuated by SHH treatment at both the mRNA and protein levels.
--
--
--
--
Human
HL
delay aging
31,080,015
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SPRY1
10252
protein coding
ASC
--
Aging
Prevent
BrdU assay//ELISA//Growth curve assay//Knockdown//SA--gal activity assay//Western blot
SPRY1 KO ASCs showed a proliferation arrest,CRISPR-GFP expressing cells served as negative control. Moreover, the anti-proliferative effect observed in SPRY1 KO ASCs was associated with significantly increased numbers of senescence-associated (SA) ¦Â-Galactosidase (¦Â-Gal) positive ASCs and decreased Ki67 abundancy.CCL1 was not detectable by ELISAs, IL-8 and CXCL1/GRO¦Á, both are signature cytokines of senescent cells, were significantly elevated in SPRY1 KO ASCs compared to control cells.
p53//p21//Rb
--//--//--
Western blot
SPRY1 KO ASCs showed a considerable upregulation of p53 and its target p21Cip1 associated with Rb activation (hypo-phosphorylation).
Ras-MAPK//NF-¦ÊB
--//--
Knockdown//Western blot
Sprouty1 protein was depleted by both shRNA #1 and shRNA #2 and silencing of Sprouty1 elevated the abundance of phosphorylated ERK1/2 in PM4-stimulated ASCs compared to shCtrl indicating augmented MAPK activation.C/EBP¦Â protein was significantly elevated in SPRY1 KO ASCs and nuclear translocation of the NF-¦ÊB subunit p65 was significantly increased in these cells indicating an Activate NF-¦ÊB pathway.
Human
HL
delay aging
32,304,210
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SRSF3
6428
protein coding
293T,HUVEC,MEF,NIH-3T3
--
Aging
Prevent
CCK-8 assay//Flow cytometry//Knockdown//SA--gal activity assay//qRT-PCR
RNA interferences using two shRNAs targeting SRSF3 caused increased senescenceassociated ¦Â-galactosidase (SA-¦Â-gal) staining in both human (293T and HUVEC) and mouse (MEF and NIH3T3) cells. In addition, SRSF3-KD reduced cell growth rate in tested cell lines.Notably, SRSF3-KD caused a common decrease of S phase percentage in both 293T and MEF cells. What¡¯s more,knockdown of SRSF3 in human and mouse cells also led to the decreased expression of MKI67, a molecular marker for cell proliferation.
PTEN
--
Luciferase reporter assay//Western blot
As knockdown of SRSF3 induced 3¡ä UTR shortening of PTEN and transcripts with shortened 3¡ä UTR of PTEN generated more protein than those with the longer one, one would expect that SRSF3-KD can increase the protein level of PTEN.Consistently, SRSF3 knockdown with two shRNAs both led to higher PTEN protein abundance in human 293T and HUVEC cells .
PI3K-Akt
--
Knockdown//Western blot
Furthermore, SRSF3 knockdown attenuated the abundance of p-AKT but not that of the total AKT,coinciding with the result of PTEN upregulation.
Human
HL
delay aging
30,835,716
Gene
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
ITGB4
3691
protein coding
Mice airway epithelial cell
Mice airway epithelia
Asthma
Prevent
Immunostaining//Knockdown//SA--gal activity assay
Our results showed that ITGB4 deficient airway epithelial cells presented typical premature senescence. The rate of positive SA-¦Â-gal staining in airway epithelial cells of ITGB4-/- mice was significantly higher than that in control mice.The cellular proliferative capacity of the airway epithelial cells in ITGB4-/- mice was decreased obviously compared with control mice.
--
--
--
--
p53-p21
--
Knockdown//qRT-PCR//Western blot
Also, we have previously found increased expression of p53 and p21 in airway epithelia of ITGB4-/- mice. Therefore, we further detect the activation of p53/p21 signaling pathway by qPCR and western blotting in HBE cells. We found that p-p53 (the activated form of p53), p53 and p21 were significantly upregulated in ITGB4-silenced HBE cells. The upregulation of p-p53 was the most pronounced.
Human
L
delay aging
30,636,108
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TRPC7
57113
protein coding
--
Skin
Aging
Accelerate
Knockdown//SA--gal activity assay//Western blot
In the absence of UVB, skin phenotype was similar between wild-type and TRPC7+/? or TRPC7?/? mice. In wild-type mice, UVB exposure induced severe desquamation and erythema of the skin. However, in TRPC7+/? and TRPC7?/? mice, UVB exposure induced slight or no damage and less epidermal thickening than in wild-type mice.SA-¦Â-gal staining, used to analyze cell senescence, was also lower in the epidermis of TRPC7+/? and TRPC7?/? mice than in that of wild-type mice after UVB exposure.We found that after UVB irradiation, the knockdown of TRPC7 in keratinocytes significantly decreased the percentage of senescent cells,as determined by SA-¦Â-gal staining,and improved the ratio of keratinocyte survival when compared with control cells. Furthermore, the knockdown of TRPC7 inhibited UVB-induced p53 expression in keratinocytes, which was corroborated by our observation that the UVB-induced activation of the p53 pathway was reduced in TRPC7+/? and TRPC7?/? mice.
--
--
--
--
--
--
--
--
Human
HL
delay aging
31,755,176
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
TET1
80312
protein coding
H1299,H1975,H226,H441,Calu-6
--
Lung cancer
Prevent
Cell morphological analysis//Colony formation assay//Crystal violet assay//Knockdown//SA--gal activity assay
TET1 knockdown significantly reduced proliferation of H1299, H1975, H226 and H441 cells at 120 h post-transfection by 63%, 40%, 24% and 21%, respectively, as determined using crystal violet assay. Furthermore, TET1 knockdown reduced anchorage independent growth of H1299, H226, and Calu6 lines as evident by 64%, 62% and 61% reduction in colony formation in soft agar, respectively.Cell morphology (enlarged size and flattened shape) suggested that these cells were undergoing cellular senescence and this was confirmed by analyzing the cells for ¦Â-galactosidase activity, a metabolic marker of senescence. Less than 1% of control cells showed detectable activity of this enzyme, while in the TET1 knockdown population, approximately 40% (H1299), 18% (H1975) and 6% (H226) of cells were ¦Â-galactosidase positive.
p53//p21
Binding//--
CHIP//qRT-PCR
As expected, no enrichment of p53 at its predicted binding site within the TET1 promoter region was detected in H1299 cells characterized by a p53-null mutation. Conversely, 23,800- and 13,500-fold enrichments of p53 at the TET1 promoter were found in the WT p53 cell lines A549 and H2228,respectively. Furthermore, p53 binding to the TET1 promoter was reduced ¡Ý90% in p53-mutated cell lines (enrichment of 1,600-, 1,200-, 223- and 16- fold in H1975, Calu6, H1993 and SW900, respectively) and negatively correlated with overall TET1 expression.qRT-PCR analysis demonstrated that expression of p21 is elevated 6- to 70- fold in H1299 cells in a highly synergistic and dose-dependent manner by combined TET1 knockdown and chemotherapy treatment.
--
--
--
--
Human
HL
delay aging
30,622,117
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SARS1
6301
protein coding
HeLa 1.2.11,BJ
--
Aging
Accelerate
FISH//Knockdown//SA--gal activity assay
We observed an unexpected increase in SA-¦Â-gal activity and increased levels of cellular senescence signaling molecules, such as P21, P16, and ¦Â-galactosidase (¦Â-Gal)32¨C34 at late cell passages of both cells; these changes were even observed in HeLa 1.2.11 cells, which undergo little replicative senescence, suggesting a role of SerRS in promoting cellular senescence beyond its role in translation.Significant telomere shortening was viewed by reduced FISH signals, further indicating that telomeres were globally shortened when SerRS was overexpressed.
POT1
Binding
Pull-down assay//Immunostaining//CHIP//Co-IP
SerRS was partially colocalized with POT1 in the nucleus.The interaction between SerRS and POT1 was further confirmed by their Co-IP from HeLa cells.V5-tagged POT1 was able to be coprecipitated with Flag-tagged SerRS via Flag antibody-mediated isolation; the reverse experiment with a V5 antibody produced a complementary result. In HeLa VST cells, the endogenous SerRS proteins could be coprecipitated with endogenous POT1 by POT1 antibody.The GST pull-down assay clearly showed the direct interaction between SerRS and POT1.
--
--
--
--
Human
L
delay aging
31,815,007
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TLR4
7099
protein coding
MLEC
--
Emphysema and COPD
Prevent
Flow cytometry//Knockdown//SA--gal activity assay
TLR4?/? mouse lung Ec (MLEC) showed increase in SA©\¦Â©\gal activity, even at low passages, compared to WT MLEC.To further investigate the role of TLR4 in cellular senescence, we examined the cell growth rate and cell cycle analysis between TLR4?/? and WT MLEC. TLR4?/? MLEC had a significantly decreased rate of cell growth compared with WT MLEC. Analysis of cell cycle distribution by flow cytometry showed that TLR4?/? MLEC exhibited increased G1 phase (83.4 ¡À 1.4% vs. 74.5 ¡À 3.8%) and decreased G2 phase (10.0 ¡À 1.5% vs. 16.8 ¡À 2.4%) compared to WT MLEC.
p16//HDAC2
Downregulation//--
qRT-PCR//Western blot
In contrast, TLR4 overexpression resulted in a significant decrease in both p16INK4a mRNA and protein expression in hLMVEC.We found that HDAC2 mRNA expression significantly decreased in lungs from TLR4?/? mice compared to WT. We also found that phosphorylated (p)and total©\HDAC2 protein expression were significantly decreased in TLR4?/? MLEC compared to WT.As further confirmation, HDAC2 siRNA sig- nificantly increased p16INK4a.
--
--
--
--
Human
L
delay aging
30,790,400
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
MANF
7873
protein coding
--
Adipose
Aging
Prevent
Knockdown//SA--gal activity assay//qRT-PCR
We also found signs of cellular senescence in MANFHet mice, but not WT littermates, at 10 months of age: elevated senescence-associated ¦ÂGal activity in subcutaneous and visceral WAT, increased levels of 4-HNE adducts, and increased expression of p16 and IL-6.
--
--
--
--
--
--
--
--
Human
HL
delay aging
31,489,403
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
CD9
928
protein coding
HUVEC
--
Atherosclerosis
Accelerate
BrdU assay//Cell morphological analysis//Flow cytometry//Immunostaining//SA--gal activity assay//Western blot
Young cells transduced with CD9 adenovirus were enlarged and flattened. Moreover, CD9 upregulation increased SA¦ÂG staining, but decreased BrdU incorporation, Ki67 immunoreactivity, the proportion of cells in the S phase, and endothelial tube formation. In addition, the levels of p53, p-p53, and p21 proteins increased.
--
--
--
--
PI3K-Akt-mTOR-p53
Activation
Knockdown//Western blot//SA-¦Â-gal activity assay
Pretreatment with LY294002, a specific inhibitor of PI3K [42], or rapamycin, an inhibitor of mTOR [43], reduced the levels of p53 and p21 and SA¦ÂG staining induced by CD9 overexpression. Knockdown of PIK3CA, but not that of PIK3CB, significantly decreased the levels of pAKT, p53, p-p53, pS6K, and p21 proteins, as well as SA¦ÂG staining, suggesting that PIK3CA might be involved in CD9- induced cellular senescence. These results indicate that the PI3K-AKT-mTOR-p53 pathway might regulate CD9- mediated cellular senescence.
Human
HL
delay aging
32,346,137
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
PRDX6
9588
protein coding
C2C12
Gastrocnemius
Metabolic Sarcopenia
Prevent
Knockdown//SA--gal activity assay//qRT-PCR
We screened the expression of 84 key genes involved in the senescence program on gastrocnemius of wt and Prdx6-/- mice. A significant up-regulation of p53 (p < 0.05),Cdkn1b (p < 0.05) and Cdkn1c (p < 0.05), was found in Prdx6-/- mice.Prdx6-/- mice showed increase in activity of SA-¦Â-Gal compared to wt mice (p < 0.005).The expression levels of telomeric repeat-binding factor 1 (TERF1), telomeric repeat-binding factor 2-interacting protein 1 (TERF2IP), telomerase-associated protein 1 (TEP1), and regulator of telomere length 1 (RTEL1), were significantly reduced in Prdx6-/-mice compared to wt mice (p < 0.05).
SIRT1
--
Western blot//Knockdown
Following the nuclear and cytoplasmic proteins fractionation, indeed, we found that in Prdx6-/- mice SIRT1 localized predominantly in the cytoplasm (p < 0.05) rather than in the nucleus (p < 0.0005) compared to wt, suggesting reduced levels of Prdx6 lead to an impairment of SIRT1 nuclearcytoplasmic shuttling.
p53-p21
--
Western blot//Knockdown
As expected, p53 acetylation was significantly increased in Prdx6-/- mice compared to wt mice, confirming the SIRT1 reduced nuclear activity. Acetylated p53 induces p21, a cyclin-dependent kinase inhibitor 1 able to regulate cell cycle and directly blunt telomerase activity . Consistently with the reduction of ATLR and increase in p53 activation, we observed a significantly enhanced steady-state levels of p21 in Prdx6-/- mice.
Human
HL
delay aging
32,316,601
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
BMI1
648
protein coding
B-MSC
--
Aging
Prevent
Cell counting//Knockdown//SA--gal activity assay//qRT-PCR
We then serially passaged BMSCs in vitro to examine the proliferative capacity of Bmi1-deficient BMSCs. Whereas wildtype BMSCs expanded significantly over three passages, Bmi1-deficient BMSCs ceased proliferation upon passage 2 and failed to expand in later passages.Bmi1-deficient BMSC cultures exhibited significantly more senescent-associated ¦Â-gal (SA¦Â-gal)+ cells and had increased expression of Ink4a, a marker of senescent cells.
--
--
--
--
--
--
--
--
Human
HL
delay aging
31,257,132
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
SIRT2
22933
protein coding
NP
--
Disc degenerative disease
Prevent
Flow cytometry//Knockdown//RT-PCR//SA--gal activity assay//Western blot
NP cells expressed significantly higher ¦Â-gal and MMP3/9 levels with higher IL-1b stimulation. NP cells were transfected with Lenti-sirt2 to overexpress Sirt2 protein. Meanwhile, Lenti-NC was used as the sham group. The function of lentivirus transfection was verified through WB analysis. Results indicated that these cells exhibited significantly less ¦Â-gal, MMP3/9 activity than those in IL-1b-induced group. Furthermore, IF staining, WB and RT-PCR analysis demonstrated that the expression of type II collagen was significantly up-regulated.Flow cytometry result showed that compared with the control group, more cells stayed in the G1 phase and less cells stayed in the M phase in the two IL-1b stimulation groups. Total ROS level increased remarkably under the treatment of IL-1b.
IL-1¦Â//SOD1//SOD2
Downregulation//Upregulation//Upregulation
RT-PCR//Western blot//Flow cytometry
Results indicated that these cells exhibited significantly less ¦Â-gal, MMP3/9 activity than those in IL-1b-induced group.Sirt2 expression decreased significantly in cells after treatment with IL-1b. Meanwhile, total ROS level decreased obviously under the treatment of Lenti-sirt2.In addition, anti-oxidative SOD1 and SOD2 were remarkably up-regulated compared with IL-1b- induced group.
p53-p21
Downregulation
Western blot//RT-PCR
Western blot and RT-PCR results indicated that Sirt6 overexpression significantly decreased the expressions of p53 and p21.
Human
L
delay aging
30,981,502
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
LSG1
55341
protein coding
MRC-5
--
Aging
Prevent
BrdU assay//Knockdown//SA--gal activity assay//Western blot
Next, we used siRNA SMARTpools to EFL1 and LSG1 and observed the expected reduction in BrdU incorporation, induction of acidic ¦Â©\galactosidase activity and induction of p16 immunoreactivity.
--
--
--
--
p53
--
Knockdown//BrdU assay//qRT-PCR//DAPI staining
E6£¨E6 abrogated p53 expression£© expression led to maintained BrdU incorporation upon LSG1 knockdown, indicating p53 dependence. Expression of E7£¨E7 expression enhanced p53 levels£©did not rescue the inhibition of cell cycle elicited by LSG1 knockdown. Once again, inhibition of the p53 pathway led to bypass of shLSG1©\induced proliferative arrest . Finally, we used shRNA to p53 to follow the growth characteristics of cell lines transduced with shRNA to LSG1. p53 knockdown resulted in greatly accelerated growth rates in vector control cells, and the knockdown of LSG1 failed to inhibit growth in these cells.
Human
HL
delay aging
31,148,378
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SBDS
51119
protein coding
MRC-5
--
Aging
Prevent
BrdU assay//Knockdown//SA--gal activity assay//Western blot
Next, we used siRNA SMARTpools to EFL1 and LSG1 and observed the expected reduction in BrdU incorporation, induction of acidic ¦Â©\galactosidase activity and induction of p16 immunoreactivity.
--
--
--
--
p53
--
Knockdown//BrdU assay//qRT-PCR//DAPI staining
E6£¨E6 abrogated p53 expression£© expression led to maintained BrdU incorporation upon LSG1 knockdown, indicating p53 dependence. Expression of E7£¨E7 expression enhanced p53 levels£©did not rescue the inhibition of cell cycle elicited by LSG1 knockdown. Once again, inhibition of the p53 pathway led to bypass of shLSG1©\induced proliferative arrest . Finally, we used shRNA to p53 to follow the growth characteristics of cell lines transduced with shRNA to LSG1. p53 knockdown resulted in greatly accelerated growth rates in vector control cells, and the knockdown of LSG1 failed to inhibit growth in these cells.
Human
HL
delay aging
31,148,378
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
LMNB1
4001
protein coding
HBEC
--
Chronic obstructive pulmonary disease
Prevent
ELISA//Immunostaining//Knockdown//SA--gal activity assay//Western blot
Lamin B1 knockdown was sufficient to induce cellular senescence by means of SA-¦Â-gal staining, phospho-histone H2A.X (Ser139) staining of DNA damage, and Western blotting of CDKN2A/p16 and CDKN1A/p21, which was significantly enhanced by CSE treatment in HBEC. To determine SASP status, CXCL8 secretion was examined. Significant increase in CXCL8 secretion was observed in conditioned medium only from CSEtreated HBEC with lamin B1 knockdown, indicating that both CSE and lamin B1 reduction to some extent are necessary for progression to full senescence with SASP.
--
--
--
--
mTOR
Downregulation
Western blot//Knockdown//qRT-PCR
In comparison with non-smoker lungs, electron microscopic evaluations showed a significant increase in mitochondrial counts in airway epithelial cells in COPD lungs . In comparison with nonsmokers and non-COPD smokers, lamin B1 and DEPTOR mRNA were significantly reduced in HBEC of COPD patients. Consistent with CS-exposed mouse models, no apparent reduction of lamin B1 and DEPTOR expression levels and no increase in p-S6K were demonstrated in alveolar lesions in COPD lungs. These results suggest the existence of pathogenic link between reduced lamin B1¨Cmediated MTOR signaling and enhanced mitochondrial accumulation associated with accelerated cellular senescence in airway epithelial cells during COPD development.
Human
L
delay aging
30,692,212
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
STUB1
10273
protein coding
HEK293T
--
Aging
Prevent
SA--gal activity assay//Western blot
The immunoblotting results showed that H2O2 increased the expression of p53 and p21 in HEK293T cells, indicating the occurrence of cell senescence. When HEK293T cells were transfected with STUB1 plasmid and treated with H2O2, cell senescence was significantly reduced, demonstrated by the decrease of SA-¦Â-Gal positive cells and by the reduction of p53 and p21.
BMAL1
Downregulation
Western blot
The endogenous BMAL1 protein was significantly reduced after expressing Myc-STUB1.Gradient increase of the transfected STUB1 led to a progressive reduction of BMAL1 .
--
--
--
--
Human
L
delay aging
32,041,778
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
BTK
695
protein coding
--
Brain
Aging
Accelerate
Knockdown//SA--gal activity assay//qRT-PCR
To test whether BTK inhibition could prevent the age-dependent buildup of senescent cells in the brain, we measured the expression of different markers of senescence in brains of control and ibrutinib-treated Zmpste24?/? mice.This was concomitant with a decrease in p53 and p16 levels, as expected. In line with this, mRNA levels of BTK (which is a transcriptional target of p53 (Althubiti et al., 2016)) and other markers of senescence were also decreased in the brain samples. p53 mRNA levels did not change significantly, which is compatible with the post-translational effects of BTK on p53 levels (Althubitiet al., 2016). The reduction in senescent cell accumulation in brains of treated mice was confirmed by a whole organ SA-¦Â-gal staining.
--
--
--
--
--
--
--
--
Human
L
delay aging
31,736,210
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
CDKN2A
1029
protein coding
AECII
--
Chronic obstructive pulmonary disease
Accelerate
EdU assay//Knockdown//SA--gal activity assay
In vivo cell proliferation was assessed by EdU incorporation. Deleting p16 significantly increased cell proliferation from 3.6% to 5.3%.When exposed to CSE, the percentage of senescent p16+/+ AECIIs increased as assessed by flow ¦Â-gal activity. Deletion of p16 completely prevented the CSE-induced senescence of AECII (p16+/+ CS vs. p16?/? CS).
Cyclin D
--
Western blot
There was a much larger increase in cyclin D in p16?/?compared with p16+/+lungs upon CS exposure, supporting the observation of enhanced cell proliferation and regeneration in p16?/?lung.
IGF-1-Akt1
--
qRT-PCR//Western blot//Knockdown
Deletion of p16 increased IGF1 mRNA and protein. This translated to a 7.83-fold increase in IGF1 protein in p16?/? lung compared with p16+/+.Similarly, total Akt was substantially elevated in p16?/? lungs and increased with CS.
Human
HL
delay aging
31,428,695
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ATP6AP2
10159
protein coding
C2C12
--
Sarcopenia
Accelerate
SA--gal activity assay//Western blot
In the differentiated myo-tube from (P)RR©\expressing C2C12 cells, we detected positive SA©\¦Â©\gal staining with an increase in ¦ÃH2AX, a senescent marker, and increased expression of TNF©\¦Á, a senescence©\associated secretory phenotype, indicating that (P)RR expression induced cellular senescence. Moreover, aging markers, such as p16, p21, and ¦ÃH2AX, were up©\regulated in the muscles of both (P)RR©\Tg mice and aged WT mice.
--
--
--
--
Wnt-YAP
Activation
Western blot//Immunostaining
As expected, ABC was significantly increased and nuclear localization of ¦Â©\catenin could be observed in the muscles of (P)RR©\Tg mice, indicating activation of Wnt/¦Â©\catenin signaling by (P)RR .Wnt and YAP activities were enhanced in myotubes from (P)RR©\expressing C2C12 cells. Treatment with verteporfin, a small molecule that inhibits the assembly of YAP/TEAD and its transcriptional activity, significantly restored myotube formation in (P)RR©\expressing myoblasts.
Human
L
delay aging
31,282,603
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SIRT1
23411
protein coding
HUVEC
--
Heart failure
Prevent
SA--gal activity assay
The inhibition of Sirt1 activity by EX-527 caused an increase of senescence in RP-ECs compared with baseline (P = 0.001).
Cat//SOD
--//--
Enzyme activity assay
The CRP enhanced Sirt1 activity measured in PBMCs from patients (RP vs P, P= 0.02). Likewise, Cat and SOD activities measured in serum were greater in RP than in P (P < 0.005 and P < 0.05, respectively).
--
--
--
--
Human
L
delay aging
28,331,525
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GDF11
10220
protein coding
HFL-1,Primary bronchial epithelial cell
--
Chronic obstructive pulmonary disease
Prevent
Cell counting//SA--gal activity assay//Western blot
Treatment with GDF11 significantly inhibited the CSE-augmented expression of p16 and p53 and the CSE-augmented SA-¦Â-gal activity in a concentration-dependent manner. CSE significantly delayed cell proliferation, but treatment with GDF11 ameliorated the delay in cell growth. Similar anti-senescent effects of GDF11 were observed in primary bronchial epithelial cells. Treatment with GDF11 significantly ameliorated the CSE-induced cellular senescence as assessed by the expression of senescence-associated proteins, SA-¦Â-gal activity and cell proliferation.These results suggest that GDF11 could prevent cigarette smoke from accelerating lung cellular senescence.
--
--
--
--
Smad2/3
--
Western blot
As previously reported in other types of cells,GDF11 phosphorylated Smad2/3,and the phosphorylation was inhibited by an activin receptor-like kinase (ALK)4/5 inhibitor, SB431542, in HFL-1 cells.
Human
L
delay aging
28,455,454
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SATB2
23314
protein coding
B-MSC
Bone
Aging
Prevent
Immunofluorescence//SA--gal activity assay
To examine replicative senescence, we repeatedly subcultured T-BMSCs transfected with either Lev-Satb2 or Lev-GFP.We observed that T-BMSCs that overexpressed Satb2 exhibited enhanced anti-aging capacity, as revealed by SA-¦Â-gal staining at the 10th passage.Compared with the Lev-GFP group, the Lev-Satb2 group displayed more intensive GFP staining in both the bone matrix and the surrounding fibroblastic-like tissue, indicating that more exogenous cells survived in the Lev-Satb2 group.
--
--
--
--
--
--
--
--
Human
HL
delay aging
25,200,657
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NAMPT
10135
protein coding
SMC
--
Atherosclerosis
Prevent
Knockdown//SA--gal activity assay
In the longer lived HITC6 SMCs,lifespan extension by Nampt was even more striking, with an additional 6.3¡À0.3 population doublings or a 71 ¡À7% extension of lifespan.We quantified the proportion of senescent SMCs in successive subcultures incubated with 10 nM FK866, a concentration we determined reduced Nampt activity in SMCs to 22 ¡À 2% of baseline.Kaplan-Meier survival analysis revealed a substantially shortened senescence-free survival of Nampt-inhibited cells SMCs. In contrast, there was markedly extended senescence-free survival in Namptoverexpressing SMCs versus vector-infected cells.
SIRT1//p53
Activation//Downregulation
Western blot
SMCs overexpressing Nampt had a 86 ¡À 4% (p=0.03, n =4) increase in SIRT1 activity. We were surprised to find that Nampt overexpression also modestly increased abundance of SIRT1 protein (1.3¡À0.3-fold, p =0.02), although not enough to fully account for the increased deacetylase activity.this agerelated increase in p53 was blunted in parallel cultures of SMCs overexpressing Nampt. Furthermore, the fraction of p53 that was acetylated on Lys-382 was substantially lower in Nampt-overexpressing SMCs than in control cells. This p53 modification was associated with a significantly increased rate of p53 degradation in Nampt-overexpressing SMCs, as assessed in SMCs incubated with cycloheximide.
--
--
--
--
Human
L
delay aging
17,307,730
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SATB2
23314
protein coding
B-MSC
--
Aging
Prevent
Knockdown//SA--gal activity assay
Although cellular proliferation remained largely unaltered, enforced SATB2 overexpression significantly enhanced pluripotency markers expression, whereas reduced cellular senescence as reflected by reduced SA-¦Â-Gal-positive cells and senescence marker expression.The cellular proliferation rate significantly decreased after SATB2 knockdown.
--
--
--
--
Nanog
Upregulation
Knockdown//qRT-PCR//CHIP
Our data reveal that the level of Nanog transcript was induced upon SATB2 overexpression, and reduced following SATB2 knockdown.Significant enrichment of SATB2 was identified in four putative binding sites in Nanog promoter region.
Human
L
delay aging
27,632,702
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PRDX2
7001
protein coding
Human primary Chondrocyte
--
Osteoarthritis
Prevent
Immunostaining//RT-PCR//SA--gal activity assay//Western blot
Western blot analysis showed that IL-1¦Â-induced chondrocytes expressed a large amount of ¦Â-gal, p53, and p21, while Prx II could attenuate the effect of IL-1¦Â and decrease the expression of ¦Â-gal, p53, and p21. RT-PCR results showed that Prx II increased the expression of anti-aging molecule BMI-1 and decreased the expression of p53 and p21. Cellular immunofluorescence also showed that Prx II reduced the expression of ¦Â-gal induced by IL-1¦Â.
--
--
--
--
p16
Downregulation
RT-PCR//Western blot
Western blot results showed that IL-1¦Â-induced chondrocyte expressed more p16 while CDK4, CDK6, and E2F1 decreased, and overexpression of Prx II attenuated the effect of IL-1¦Â. The results of RT-PCR were similar to those of Western blot.
Human
L
delay aging
32,329,817
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
MSN
4478
protein coding
HDMEC
--
Aging
Prevent
Cell morphological analysis//Knockdown//RT-PCR//SA--gal activity assay//Western blot
Moesin knock-down HDMECs showed the characteristics of aging, i.e., they were large, flat, and stellate, beginning at the early stage of passage 6. Moesin knock-down HDMECs from the early stage of passage 6 were stained blue with SA-¦Â-gal. HDMECs at late passages higher than passage 25 stained blue in all serial subcultures. In comparison with control vector-treated HDMECs, the doubling time of moesin knock-down HDMECs was delayed by 3 h at passage 6 and 10 h at passage 22. The doubling level of the cumulative cell population in moesin-knockdown HDMECs was much less than that in virus-untreated HDMECs. Moesin knock-down HDMECs expressed less moesin RNA than control vectortreated HDMECs. In addition, the RNA expression of p16 in HDMECs at late passages and moesin knockdown HDMECs was higher than that in control vectortreated HDMECs.In applying Western blotting, reduced expression of moesin and higher expression of p16 were observed in moesin knock-down HDMECs, compared to control vectortreated HDMECs.
--
--
--
--
--
--
--
--
Human
L
delay aging
20,376,899
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
SGK1
6446
protein coding
HUVEC,SGK1WT
--
Atherosclerosis
Prevent
SA--gal activity assay//Telomerase activity assay
Infected HUVEC lines have been cultured until the last stage of senescence, represented as arrest of cellular proliferation (PDL16). During serial passages of HUVEC, the activity of SA-¦Â-gal in control pLPCX and in SGK1¦¤60 increased by ~5-6-fold from PDL6 to PDL16. SGK1WT was able to significantly reduce SA-¦Â-gal activity (by 2-fold) compared with SGK1¦¤60 and pLPCX cellular groups at PDL8 (p<0.0005). SGK1WT cells showed a significant increase in telomerase activity at PDL8 compared with both PDL6 (p<0.05), and PDL13 (p<0.005).
hTERT
Binding
Co-IP//Pull-down assay//Flow cytometry//Immunostaining
We found that SGK1 co-immunoprecipitates with hTERT in all cellular constructs, proving a protein-protein interaction. However, a different shift was observed between total SGK1¦¤60 and hTERT immunoprecipitate, suggesting that hTERT interacts only with SGK1 full length,and further supporting the previously reported inactivity of SGK1¦¤60 in delay endothelial aging. To confirm these results we performed a GST pull-down assay which established the direct interaction between SGK1 and hTERT, similarly to what we observed with previous used methodology.However, a significant decrease in ROS production was evident in the cells overexpressing SGK1WT compared with both control, and SGK1¦¤60 construct (p<0.005).
--
--
--
--
Human
L
delay aging
26,230,157
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SEMA4C
54910
protein coding
MDA-MB-231
--
Breast cancer
Prevent
Cell counting//Cell morphological analysis//Immunostaining//Knockdown//SA--gal activity assay
Cell counting assays demonstrated that knockdown of SEMA4C significantly inhibited 24 MDA-MB-231 cellular growth ability. Cell immunohistochemistry also indicated that MDA-MB-231 cells expressing shSEMA4C showed a >50% reduction in proliferation rate as assessed by anti-human PCNA staining.However, in the following days, some gradually acquired a flattened and enlarged cell shape, thus implying a pro-senescent non-apoptotic state.The senescent marker of SA-¦Â-gal increased significantly in MDA-MB-231cells transfected with either siSEMA4C or siPLEXINB2 compared with control cells.
--
--
--
--
p53-p21
--
Western blot//Knockdown
The ratio of phospho-p21Cip1¨CThr145 to total p21Cip1 increased in the MDA-MB-231 cells transfected with either siSEMA4C or siPLEXINB2,suggesting that knockdown of SEMA4C or PLEXINB2 induced activation of p53, followed by activation of p21Cip1.
Human
HL
delay aging
31,308,149
Gene
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ACKR3
57007
protein coding
C4-2B
--
Prostate cancer
Prevent
Cell morphological analysis//Knockdown//SA--gal activity assay
After one month in culture, no further proliferation could be observed, and all cells had developed a broad, flattened morphology with numerous long protrusions.In proliferation-arrested CRISPR-Cas9 mutated C4-2B colonies, strong blue staining was observed in nearly all cells indicating cellular senescence.
Androgen receptor(AR)
Binding
CHIP//Luciferase reporter assay
Chromatin immunoprecipitation (ChIP) assays were performed on the genomic CXCR7 promoter in LNCaP cells in the presence and absence of androgen. The promoter of prostate specific antigen (PSA) was used as a positive control for AR binding and showed a significant enrichment with androgen stimulation compared to androgen deprived cells. In the CXCR7 promoter, there was a significant increase in AR binding at the predicted ARE 2 region (R1881: 2.35¡À0.54 vs. CDFBS: 0.49¡À0.09) as well as the region containing the closely spaced (7 nt separation) AREs 4 and 5 (ARE 4/5) (R1881: 1.65¡À0.14 vs. CDFBS: 1.11¡À0.12). Androgen stimulation also increased AR enrichment of the ARE 1 and ARE 3 regions, but did not reach significance. There was no change in enrichment at the ARE 6 region.
EGFR
--
Western blot//Histochemical staining
We observed substantially reduced CXCR7-ARRB1 and increased CXCR7-ARRB2 interactions in the CXCR7-mutant LNCaP cell line compared to WT CXCR7 LNCaP cells. These data reveal that the lost protein region containing amino acids 114 to 243 altered protein-protein interactions necessary for the observed ARRB-EGFR-CXCR7 regulatory axis, providing a potential explanation for disrupted EGF-mediated mitogenic signaling.
Human
HL
delay aging
28,596,572
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TRMT9B
57604
protein coding
Htrm9L
Tumour sample
Colorectal cancer
Accelerate
Immunostaining//SA--gal activity assay
Although some inter-experiment variability was observed for the absolute levels of senescence, hTRM9Lexpressing tumour nodules were consistently higher in SA-¦Â-Gal activity and peaked 3 days after in vivo inoculation. Close to 80% of the hTRM9L proficient cells stained positive for SA-¦Â-Gal activity after 3 days and up to 7 days in vivo, with a maximum of 40% of the control cells staining positive for SA-¦Â-Gal activity 5-days post inoculation.We also detected a consistent up-regulation of the cell cycle inhibitor p21.
LIN9//HIF1-a
Upregulation//Upregulation
Western blot//Immunostaining
We validated that the LIN9 transcript and protein is up-regulated 2-fold in hTRM9 expressing cells.First, we performed a quantitative analysis of HIF1-a protein levels in SW620, SW620-LacZ and SW620-hTRM9L expressing cells grown 3 days post inoculation on the CAM. We determined that HIF1-a protein levels were 2-fold higher in hTRM9L expressing cells.We monitored HIF1-a nuclear localization under hypoxic conditions and determined that nuclear localization was occurring at similar levels (65%) in both hTRM9L and LacZ expressing cells.
--
--
--
--
Human
HL
delay aging
23,381,944
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
MYC
4609
protein coding
HT-1080
--
Cancer
Accelerate
SA--gal activity assay
The overexpression of c-Myc resulted in increased cellular senescence in transfected HT-1080 cells which was prevented by transducing the cultures with lentiviral-p30II (HA) or through the co-expression of FLAG-tagged TIGAR.
--
--
--
--
--
--
--
--
Human
L
delay aging
29,462,755
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FBXO31
79791
protein coding
MCF-7
--
Aging
Accelerate
BrdU assay//SA--gal activity assay
we found that ectopic expression of FBXO31 in MCF7 cells promoted growth arrest, as evidenced by reduced proliferation and decreased DNA replication (BrdU incorporation), and induced senescence, as evidenced by positive staining for senescence-associated ¦Â-gal.
MDM2//p53//ATM
Downregulation//Upregulation//--
Western blot//Co-IP
The immunoblot shows that ectopic expression of FBXO31 resulted in decreased levels of MDM2, which, as expected, were accompanied by increased levels of p53 and p21.The presence of MDM2 in the FBXO31 immunoprecipitate, which was increased by lactacystin addition. The reciprocal coimmunoprecipitation experiment showed the presence of myc-FBXO31 in the MDM2 immunoprecipitate.FBXO31 failed to reduce MDM2-6A levels, confirming the essential role of ATM in FBXO31-directed degradation of MDM2
--
--
--
--
Human
L
delay aging
26,124,108
Gene
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SQSTM1
8878
protein coding
PaSC
--
Pancreatic ductal adenocarcinoma
Prevent
Flow cytometry//Knockdown//SA--gal activity assay//qRT-PCR
qPCR analysis corroborated the upregulation of these genes including IL-8, CXCL1, CXCL2, CCL2, and CCL20. This transcriptional change suggested an inflammatory and senescent phenotype of PaSCs. Flow cytometry analysis showed that FAP expression was increased in sqstm1 shRNA-transfected PaSCs. Consistently, ¦Â-galactosidase staining demonstrated that downregulation of sqstm1 in PaSCs led to enhanced senescence.
--
--
--
--
--
--
--
--
Human
HL
delay aging
31,182,922
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
SAMHD1
25939
protein coding
HeLa
--
Aicardi¨CGouti¨¨res syndrome
Prevent
Flow cytometry//Knockdown//SA--gal activity assay//Western blot
Depletion of SAMHD1 in HeLa cells by RNA interference led to increased expression of p21. This was accompanied by a delay in cell cycle progression and signs of cellular senescence, as shown by increased ¦Â-galactosidase activity.
--
--
--
--
--
--
--
--
Human
HL
delay aging
24,445,253
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
TOP1
7150
protein coding
HCT116
--
Aging
Prevent
Clonogenic assay//Flow cytometry//Knockdown//SA--gal activity assay
We observed using clonogenic assays that sn38 induced a complete inhibition of cell proliferation. Using beta-galactosidase staining, we also noticed an induction of senescence following genotoxic treatment.control cells were synchronized in the G2 phase of the cell cycle after 48-72 hr.
Aurora-A
--
qRT-PCR//Western blot//Knockdown
Although this was the cell cycle stage when Aurora-A expression was supposed to be maximal, results indicated that the expression of the kinase was downregulated in response to sn38, both at the protein and mRNA levels.Finally, these experiments have also been repeated in a different colorectal cell line and sn38 also downregulated Aurora-A in HT29 cells.
--
--
--
--
Human
L
delay aging
20,682,043
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TERT
7015
protein coding
U937
--
Atherosclerosis
Prevent
Knockdown//SA--gal activity assay//qRT-PCR
MPM isolated from first-generation TERT-deficient mice significantly upregulated senescence associated -galactosidase activity, an established biomarker of replicative senescence. Furthermore, TERT-deficient macrophages revealed increased transcript levels of several genes causally involved in replicative senescence,26 including p16,p21, and the retinoblastoma protein.
--
--
--
--
NF-¦ÊB
Binding
CHIP
We next performed chromatin immunoprecipitation assays using primer pairs that cover the NF-KB site at 592/580 in the human TERT promoter to determine whether NF-KB subunits are recruited to the endogenous TERT promoter. These assays confirmed that LPS, oxLDL, and TNF- induce the recruitment of both NF-KB subunits to the consensus site in the human TERT promoter. Similarly, chromatin immunoprecipitation analysis in primary MPM revealed that oxLDL induces a strong recruitment of p65 and p50 to a region encompassing an NF-KB site at 250/238 in the murine TERT promoter.
Human
L
delay aging
21,106,948
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
SLC4A2
6522
protein coding
BEC
--
Primary biliary cholangitis
Prevent
Knockdown//SA--gal activity assay
Transfection of BEC with AE2-specific siRNA that reduced AE2 expression significantly increased the proportion of SA-¦Â-gal-positive cells (p < 0.05) and this effect was significantly inhibited by NAC (p < 0.05), indicating that the increased cellular senescence is indeed caused by the reduced level of AE2 expression.
--
--
--
--
--
--
--
--
Human
L
delay aging
27,592,379
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FANCD2
2177
protein coding
Fancd2+/+ epithelial cell
Skin
Fanconi anemia
Accelerate
Knockdown//SA--gal activity assay
To test this hypothesis, we examined the level of senescence-associated (SA)-¦Â-galactosidase staining, a measure of in vivo senescence (Lin et al., 2010), in skin extracted from the TPA-exposed animals. Consistent with the reduced proliferation observed in TPA-treated Fancd2+/+ epithelial cells, we detected a higher accumulation of SA-¦Â-galactosidase staining in this tissue compared to Fancd2+/-epithelium.
TAp63//USP1
Upregulation//--
CHIP//Western blot
Consequently, we performed chromatin immunoprecipitation (ChIP) assays to determine whether FANCD2-Ub could directly bind to the promoter region of TAp63. The promoter regions of the p63 gene have previously been analyzed (Buckley et al., 2011; Waltermann et al., 2003). We initially divided the promoter of TAp63 into six regions(A1¨CA6)The nuAs predicted, A549 cells expressing USP1 shRNA showed an increase in the level of FANCD2-Ub. The reduction of USP1 expression by shRNA, and the increased FANCD2-Ub expression, inhibited the colony formation of A549 cells in soft agar and inhibited the tumor xenograft growth in nude mice.The ChIP results demonstrate that FANCD2-Ub can bind to relevant cisacting regulatory sequences of the TAp63 gene, leading to enhanced TAp63 expression and enhanced cellular senescence.
--
--
--
--
Human
HL
delay aging
23,806,336
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PIP4K2A
5305
protein coding
BT-474
--
Breast cancer
Prevent
Immunostaining//Knockdown//SA--gal activity assay
We observed a significant increase in reActivate oxygen species (ROS), in oxygen consumption, and in ¦Â-galactosidase staining in the BT474 cells in response to knockdown of both PI5P4K¦Á and ¦Â consistent with ROS-induced senescence.Decrease in cell proliferation in response to knockdown of both PI5P4K¦Á and ¦Â.
--
--
--
--
PI3K-Akt
--
Western blot//Knockdown
This increase in AKT phosphorylation could be explained by an increase in PI-3,4,5-P3 levels in response to knockdown of both PI5P4Ka and b . Surprisingly, we observed a dramatic decrease in PI-3,4-P2 in the double-knockdown cells .The levels of INPP4B were virtually undetectable in BT474 cells prior to the knockdown of PI5P4Ka and b but were quite high following the knockdown, explaining the drop in PI-3,4-P2 levels.
Human
HL
delay aging
24,209,622
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PIP4K2B
8396
protein coding
BT-474
--
Breast cancer
Prevent
Immunostaining//Knockdown//SA--gal activity assay
We observed a significant increase in reActivate oxygen species (ROS), in oxygen consumption, and in ¦Â-galactosidase staining in the BT474 cells in response to knockdown of both PI5P4K¦Á and ¦Â consistent with ROS-induced senescence.Decrease in cell proliferation in response to knockdown of both PI5P4K¦Á and ¦Â.
--
--
--
--
PI3K-Akt
--
Western blot//Knockdown
This increase in AKT phosphorylation could be explained by an increase in PI-3,4,5-P3 levels in response to knockdown of both PI5P4Ka and b. Surprisingly, we observed a dramatic decrease in PI-3,4-P2 in the double-knockdown cells.The levels of INPP4B were virtually undetectable in BT474 cells prior to the knockdown of PI5P4Ka and b but were quite high following the knockdown, explaining the drop in PI-3,4-P2 levels .
Human
HL
delay aging
24,209,622
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GNMT
27232
protein coding
HuH-7-GNMT,HuH-7-GFP,HepG2
--
Hepatocellular carcinoma
Accelerate
Flow cytometry//MTT assay//SA--gal activity assay
The growth rate of HuH-7-GNMT cells was significantly slower than that of HuH-7-GFP cells. Similar results were also observed in HepG2 cells overexpressing GNMT. Cell cycle analysis showed that, 36 h after the cells entered the cell cycle, the percentages of cells in the G2/M phase for HuH-7-GNMT cells and HuH-7-GFP cells were 23.8% and 10.4%, respectively.Furthermore, SA-¦Â-gal assay demonstrated that HuH-7-GNMT cells had asignificantly higher rate of positive staining than HuH-7-GFP cells.
DEPTOR
Binding
FRET-AB assay//Co-IP
Immunoprecipitation of either HAtagged DEPTOR or endogenous DEPTOR coprecipitated FLAG-tagged GNMT. In addition, we detected endogenous DEPTOR in GNMT immunoprecipitants prepared from mouse liver. The results showed that the FRET efficiency between full-length GNMT and DEP domains of DEPTOR decreased significantly. In addition, a >50% decrease of the FRET efficiency was found between full-length DEPTOR and the N-terminal of GNMT.
mTOR-Raptor
Activation
Western blot
The results showed that overexpression of GNMT led to increases of both 4E-BP phosphorylation and cell size. In addition, overexpression of DEPTOR in HuH-7-GNMT stable cells resulted in the neutralization of the effect of GNMT on 4E-BP phosphorylation.
Human
L
delay aging
22,160,218
Gene
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0