[Endothelial nitric oxide synthase gene transfected endothelial cells inhibit smooth muscle cell proliferation and platelet aggregation early in vitro].

OBJECTIVE: To test the function of endothelial cells transfected eNOS gene. METHODS: To test the function of eNOS-overexpressing endothelial cells inhibiting smooth muscle cell proliferation and platelet aggregation in vitro by colorimetry, MTT and (3)H-TdR permeate, respectively, in four different endothelial cells groups. RESULTS: The platelet aggregation is significantly decreasing between the groups of EC and eNOS at the different time (P < 0.05), is 42.2 and 32.6 separately at the time of 120 h. The SMC proliferation is significantly decreasing between the groups of EC and eNOS at the different time (P < 0.05). It is 0.28 and 0.22 by MTT test, 4691 and 3995 by (3)H-TdR permeate separately at the time of 120 h. CONCLUSIONS: eNOS-overexpressing endothelial cells inhibited significantly smooth muscle cells proliferation and platelet aggregation in vitro; which shows powerful effect 48 hours post transfection and lasts up to 120 hours at the least; and were held back by L-NAME.