%A CHEN Xin-xin, ZHANG Xiao-yun, DING Yu-zhen, LI Xin, GUAN Xiu-mei, LI Hong, CHENG Min, CUI Xiao-dong %T Effects of endothelial progenitor cells on proliferation and biological function of hepatic stellate cells under shear stress %0 Journal Article %D 2018 %J CJAP %R 10.12047/j.cjap.5624.2018.092 %P 404-407 %V 34 %N 5 %U {http://manu37.magtech.com.cn/Jwk_jsyxkx/cjap/CN/abstract/article_148352.shtml} %8 2018-09-28 %X Objective: To investigate the effects of endothelial progenitor cells (EPCs) under shear stress on the biological function such as proliferation, adhesion, migration, apoptosis and expression of α-smooth muscle actin (α-SMA), collagen-I and collagen-Ⅲ of hepatic stellate cells (HSCs). Methods: HSCs and EPCs were inoculated into the upper and lower layers of the co-culture chamber respectively and co-incubated for 24 hours. Then, 12 dyne/cm2 shear stress was applied to EPCs cells for another 24 hours. After that, proliferation, adhesion, migration and apoptosis of HSCs were detected by cell counting kit-8 (CCK-8) kit, cell adherent assay, Boyden cell migration assay and flow cytometry respectively. Fluorescence quantitative PCR and Western blot were used to detect the mRNA and protein expression of alpha -SMA, collagen I and collagen-Ⅲ in HSCs. Results: Under shear stress, EPCs ecological niche could obviously inhibit the proliferation, adhesion and migration of HSCs, promote the apoptosis of HSCs, and down-regulate the mRNA and protein expression of collagen-I, collagen-Ⅲ in HSC cells. Conclusion: Under shear stress, EPCs ecological niche could inhibit the fibrosis development of HSCs to a certain extent.