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ND-16: A Novel Compound for Inhibiting the Growth of Cutaneous T Cell Lymphoma by Targeting JAK2.

OBJECTIVE
Cutaneous T cell lymphoma (CTCL) is a kind of extranodal non-Hodgkin Tcell lymphoma without healable treatment in the clinic. JAK2 amplification in CTCL patients makes it a potential target for CTCL treatment. In the present study, we aimed to evaluate the anticancer effect of ND-16, a novel nilotinib derivate, on CTCL cells and the underlying mechanism targeting JAK2. Methods and Results: We found that ND-16 was capable of regulating JAK2 and had a selective inhibitory effect on CTCL H9 cells. The surface plasmon resonance and molecular docking study indicated ND-16 bound to JAK2 with a high binding affinity. Further investigation revealed that ND-16 inhibited the downstream cascades of JAK2, including STATs, PI3K/AKT/mTOR, and MAPK pathways, followed by regulation of Bcl-2 family members and cell cycle proteins CDK/- Cyclins. Flow cytometry analysis confirmed these results that ND-16-treated H9 cells showed cell apoptosis and cell cycle arrest at S-phase. Conclusion: ND-16 may be of value in a potential therapy for the management of CTCL.