碱性成纤维细胞生长因子对人肝癌Bel-7402细胞Skp2和p27Kip表达的影响
Chinese Journal of Anatomy(2009)
Abstract
目的:研究碱性成纤维细胞生长因子(bFGF)对肝癌Bel-7402细胞Skp2、p27Kip表达的影响,探讨bFGF调控肝癌细胞增殖的信号转导机制.方法:分为对照组、bFGF组、bFGF+Wortmannin组,MTT法分析细胞增殖程度;流式细胞术分析细胞周期;RT-PCR法检测Skp2的mRNA表达;免疫印迹法检测Skp2、p27Kip蛋白的表达.结果:bFGF组细胞增殖比显著增加;bFGF可诱导细胞由G1期进入S期,而且上调Skp2的mRNA和蛋白表达、下调p27Kip蛋白表达;PI3K的抑制剂Wortmannin可部分抑制bFGF的上述作用.结论:bFGF可能通过激活PI3K/PKB途径调节Skp2、p27Kip表达,促进肝癌Bel-7402细胞增殖.
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Key words
Bel-7402 cell line,basic fibroblast growth factor,liver cancer,p27Kip,S-phase kinase-associated protein2
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