Inhibitory effect of Siwei Xiaoliuyin on glioma angiogenesis in nude mice.

ABSTRACT

OBJECTIVE: Application of Siwei Xiaoliuyin in glioma mice. Explore the effect of Siwei Xiaoliuyin on angiogenesis of nude mice glioma and its mechanism. METHODS: Establish human glioma cell line U87 tumor model. Mice were randomized to the saline group, the conventional dose of Siwei Xiaoliuyin, high dose group of Siwei Xiaoliuyin, TMZ group, combination therapy group, record the tumor volume. Using the method of Weidner counted the microvessel density. ELISA enzyme-linked adsorption method to detect the content of nude mice serum VEGF and ES. The difference was statistically significant (P<0.05). RESULTS: The tumor volume and MVD of conventional dose group, large dose group, Siwei Xiaoliuyin combined temozolomide group was smaller than the blank group，the difference was statistically significant (P<0.05). VEGF levels in three groups of nude mice were lower than the blank group and ES content is higher than blank group, the difference was statistically significant (P<0.05). CONCLUSION: Siwei Xiaoliuyin can inhibit glioma angiogenesis. Its mechanism of glioma angiogenesis inhibition may be through regulation VEGF and down-regulation of endostatin expression of vascular endothelial growth factor achieved. Down-regulation of endostatin expression of vascular endothelial growth factor achieved.