MAGI1通过调节PETN抑制肝癌细胞的侵袭运动

目的:探讨MAGI1基因在肝癌侵袭转移中的作用及分子机制.方法:将MAGI1过表达载体,稳定转染HepG2细胞(HepG2MAGI1),应用划痕愈合实验和基质胶侵袭实验检测HepG2MAGI1 和对照组细胞(HepG2)在细胞运动侵袭能力上的差别.采用Western印迹方法检测MAGI1和PTEN的表达,并分析其相关性...

MAGI1 inhibits cancer cell migration and invasion of hepatocellular carcinoma via regulating PTEN

Objective To explore the biological function and molecular mechanism of membrane associated guanylate kinase,WW and PDZ domain containing 1 (MAGI1) in hepatocellular carcinoma.Methods HepG2MAGI1 stable cell line was constructed by transfecting HepG2 cells with pcDNA3.1-MAGI1 plasmid.Wound healing and invasion assay were performed to compare the migration and invasion ability of HepG2MAGI1 and HepG2 cells.Furthermore,the expression of MAGI1 and phosphatase and tensin homolog deleted on chromosome ten (PTEN) was also examined by Western blot and the relationship was analyzed.Results The wound healing assay showed that the closure of HepG2MAGI1 cells was significantly slower than that of HepG2 cells [(90±10)% vs.(50±15)%,P＜0.05],and the invasion assay showed that the number of HepG2MAGI1 cells that passed through the matrigel was fewer than HepG2 cells (68±18 vs.150±30,P＜0.05).The protein expression level of PTEN was significantly elevated in HepG2MAGI1 cells compared with HepG2 cells (1.40±0.32 vs.0.28±0.15,P＜0.05).MAGI1 and PTEN protein expression levels were positively correlated (r=0.913,P＜0.01).Conclusion MAGI1 may inhibit the cancer cell migration and invasion of hepatocellular carcinoma via regulating PTEN.