In this study, the mechanism by which Ad-p27mt inhibits the growth, invasion and metastasis of transplanted liver tumor was studied by examining the effects of Ad-27mt gene transfer on the expression of Bax, Bcl-2, VE...In this study, the mechanism by which Ad-p27mt inhibits the growth, invasion and metastasis of transplanted liver tumor was studied by examining the effects of Ad-27mt gene transfer on the expression of Bax, Bcl-2, VEGF and MMP-9 in the transplanted liver tumors in nude mice.The model of transplanted hepatic tumor was established in nude mice.The mice were then divided into three groups, which were injected with PBS, Ad-LacZ and Ad-p27mt and the growth of the transplanted liver tumor was observed.The expressions of P27, Bax and Bcl-2 proteins were detected by Western blotting and the expressions of VEGF and MMP-9 were immunohistochemically determined.Our result showed that the tumor size, expressions of Bax, Bcl-2 proteins, VEGF and MMP-9 were all lower than those in PBS and Ad-LacZ groups and the differences were statistically significant (P【0.05).Our study suggested that Ad-p27mt could inhibit the growth, invasion and metastasis of hepatic cancer by lowering the expressions of VEGF and MMP-9.展开更多
基金supported by a grant form the Program of Scientific Research of Bureau of Science and Technology of Hubei Province,China (No.2005ABA082)
文摘In this study, the mechanism by which Ad-p27mt inhibits the growth, invasion and metastasis of transplanted liver tumor was studied by examining the effects of Ad-27mt gene transfer on the expression of Bax, Bcl-2, VEGF and MMP-9 in the transplanted liver tumors in nude mice.The model of transplanted hepatic tumor was established in nude mice.The mice were then divided into three groups, which were injected with PBS, Ad-LacZ and Ad-p27mt and the growth of the transplanted liver tumor was observed.The expressions of P27, Bax and Bcl-2 proteins were detected by Western blotting and the expressions of VEGF and MMP-9 were immunohistochemically determined.Our result showed that the tumor size, expressions of Bax, Bcl-2 proteins, VEGF and MMP-9 were all lower than those in PBS and Ad-LacZ groups and the differences were statistically significant (P【0.05).Our study suggested that Ad-p27mt could inhibit the growth, invasion and metastasis of hepatic cancer by lowering the expressions of VEGF and MMP-9.
