Effect of neuropeptide Y on bcl- 2, bax, fas expressions and proliferation in vascular smooth muscl cells / 中国病理生理杂志

ABSTRACT

AIM: To explore the effect of neuropeptide Y on expression of apoptosis associated genes and proliferation in vascular smooth muscle cells(VSMC). METHODS: The proliferation activity of VSMC was dterminded by MTr colorimetry. The average fluorescence intensity that represented VSMC nuclear antigen (PCNA) and bcl -2, bax, fas expressions was quantitatively measured by fluorescence immunohistoehemistry. RESULTS: Compared with control, the expressions of bcl - 2, bax, fas, PCNA and the VSMC proliferation activity in VSMC treated with NPY were significantly increased. CONCLUSION: NPY may increase the expression of apoptosis associated genes in VMSC and promote its proliferation.