OBJECTIVE: To evaluate the effects of 3 kinds of serum containing blood-activating and stasis-eliminating TCM compound formulas on aggressive behavior, Janus kinase (JAK)/signal transduction and transcriptional activator (STAT) pathway of glioma U251 cells. METHODS: Rats were randomly divided into normal saline group (5 mL/kg), Taohong Siwu decoction group (5.7 g/kg), Xuefu Zhuyu decoction (8.5 g/kg) and Didang decoction (2.8 g/kg), calculated by crude drug, intragastrically administrated once a day, for 10 d. 10% drug-containing serum culture medium was prepared after 2 h of last administration. After 10% drug-containing serum culture medium intervening U251 cells for 1 week, Transwell method was conducted to detect the cell invasion rate, Western blot was adopted to detect the metal matrix protease 2 (MMP-2), MMP-9, phosphorylated JAK2 (p-JAK2), phosphorylated STAT3 (p-STAT3) protein expression; and real-time fluorescence quantitative polymerase chain reaction method was used to detect MMP-2, MMP-9 mRNA expression. RESULTS: Compared with blank serum, Xuefu Zhuyu decoction drug-containing serum can reduce cell invasion rate (P<0.05), decrease the MMP-2, MMP-9 mRNA and its protein expression, and p-JAK2, p-STAT3 protein expression in cells (P<0.05 or P<0.01), while there was no significant difference in above-mentioned indexes in Taohong Siwu decoction drug-containing serum group and Didang drug-containing serum group (P>0.05). CONCLUSIONS: In the 3 kinds of blood-activating and stasis-eliminating TCM compound formulas, Xuefu Zhuyu decoction shows significant invasive effect on inhibiting U251 cells; the mechanism may be related to inhibiting the activation of JAK2/STAT3 signal pathway and decreasing MMP-2, MMP-9 gene and protein expressions.
关键词
活血化瘀侵袭Janus激酶/信号转导及转录激活因子信号通路金属基质蛋白酶胶质瘤U251细胞
Keywords
Blood-activating and stasis-eliminatingInvasionJanus kinase/signal transduction and transcriptional activator pathwayMetal matrix proteaseGlioma U251 cells