Green tea polyphenol epigallocatechin-3-gallate blocks PDGF-induced proliferation and migration of r
AIM: To clarify the effects of epigallocatechin-3-gallate (EGCG) on the platelet-derived growth factor (PDGF)-BB-induced proliferation and migration of pancreatic stellate cells (PSCs).METHODS: PSCs were isolated from rat pancreas tissue and used in their culture-activated, myofibroblast-like phenotype. Cell proliferation was assessed by measuring the incorporation of 5-bromo-2"-deoxyuridine. Cell migration was assessed using modified Boyden chambers. CyclinD1, p21waf1, and p27Klp1 expression and phosphorylation of PDGF β-receptor, extracellular signal-regulated kinase, and Akt were examined by Western blotting. Activation of phosphatidylinositol 3-kinase was examined by kinase assay using phosphatidylinositol as a substrate. Cell cycle was assessed by flow cytometry after staining with propidium iodide.RESULTS: EGCG at non-cytotoxic concentrations inhibited PDGF-induced proliferation and migration. This effect was associated with the inhibition of cell cycle progression beyond the G1 phase, decreased cyclin D1 and increased p27Kip1 expression. EGCG inhibited tyrosine phosphorylation of PDGF β-receptor and downstream activation of extracellular signal-regulated kinase and phosphatidylinositol 3-kinase/Akt pathways.CONCLUSION: EGCG inhibited PDGF-BB-induced proliferation and migration of PSCs through the inhibition of PDGF-mediated signaling pathways.【Green tea polyphenol epigallocatechin-3-gallate blocks PDGF-induced proliferation and migration of r】完成机构：DivisionofGastroenterology,TohokuUniversityGraduateSchoolofMedicine,Sendai,Japan
推荐阅读
- steampy是干嘛的
- VBA 怎么使用DATEADD函数
- 冲进steam钱包的钱可以退吗
- 注册steam账号一直显示错误
- Steam use
- Wuyutai Teahouse： A Hundred-year-old Brand Name
- Effect of Complex Coordinating Tea Polysaccharide with Cerium on Degradation of Plasmid DNA and Orga
- Remote desktop software TeamViewer, connecting the artifact
- 茶叶流通之清代茶税
- 茶叶流通之茶课钞