Zhang Ting,Wang Fan,Zhu Jundong,Yi Long,Fu Yujie,Mi Mantian.Protective effect of genistein on oxidative stress-induced injuries of human vascular endothelial cells[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(03):229-232.
Zhang Ting,Wang Fan,Zhu Jundong,Yi Long,Fu Yujie,Mi Mantian.Protective effect of genistein on oxidative stress-induced injuries of human vascular endothelial cells[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(03):229-232.DOI:
Objective To study the effect of genistein (Gen) on oxidative stress-induced injuries of human vascular endothelial cell line EA hy.926 and its mechanism. Methods Oxidative stress-induced injury model was established with H
2
O
2
. Effect of Gen on viability of cells and oxidative stress-induced apoptosis of cells was detected by CCK-8 assay
flow cytometry and TUNEL assay
respectively. Effect of Gen on expression of Bcl-2
Nrf2 and HO-1 was detected by Western blotting. Results H
2
O
2
at the concentration of 100 to 500 nmol/L significantly inhibited the viability and apoptosis of cells
(IC
50
=650 μmol/L)
with the apoptosis rate decreased from 16.54% to 6.18% . Gen up-regulated the expression of Bcl-2 protein and activated the anti-oxidation pathway of Nrf2 and HO-1. Conclusion Gen effectively inhibit oxidative stress-induced injuries of vascular endothelial cells by up-regulating the expression of Bcl-2 and activating the anti-oxidation pathway of Nrf2/HO-1.