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[Effects of a new houttuyfonate derivative on proliferation of NIH3T3 cell and expression of syndecan-4 induced by tumor necrosis factor alpha].

OBJECTIVE
To investigate the effect of a new houttuyfonate derivative (NHD) on proliferation of NIH3T3 cell and expression of Syndecan-4 induced by TNF-alpha in vitro.


METHODS
NIH3T3 cells were cultured and exposed to TNF-alpha or NHD respectively, and then cotreated with TNF-alpha and NHD. All the groups were cultured for 24 hour in vitro, in addition to the untreated control group established for comparison. The ratio of proliferation of NIH3T3 cell was determined by non-radioactive MTS/PMS assay and the expression of Syndecan-4 was evaluated by western blot using anti-Syndecan-4 antibody.


RESULTS
Statistical analysis showed that, compared with the control group, NHD had no effect on VSMCs growth, but significantly inhibited NIH3T3 cell proliferation while induced by TNF-alpha. It also showed that compared with control group, NHD had no effect on the expression of Syndecan-4, but significantly inhibited its expression while induced by TNF-alpha (P < 0.05).


CONCLUSIONS
NHD can inhibit the proliferation of NIH3T3 cell and the expression of syndecan-4 protein induced by TNF-alpha in vitro.