Effect of Yiqigubiao Pill Regulate Inflammatory Cytokines Through JAK/STAT Pathway in COPD Rats Model / 世界科学技术-中医药现代化

ABSTRACT

The research observed the effect of Yiqigubiao Pill regulating inflammatory reaction mRNA expression in JAK/STAT pathway in COPD rats model and explored protective effect of Yiqigubiao pills in the treatment or auxiliary possible mechanism in COPD. 60 SFP Wistar rats were divided randomly into control group (CN), COPD model group (M) and Yiqigubiao Pill group (Yqgb). The rats in group M and group YQGB were establish by using the method of LPS and smoking as COPD, rats in group M and group CN were given normal saline intragastric administration, and rats in the YQGB group were given water solution intragastric administration at the corresponding dose, twice a day. After using drugs for 12 weeks, we used ELISA method to detect changes inIL-17a, IL-23, IFN-γ and RORγt expression in peripheral blood, RT-PCR method to detect changes in the expression of JAK1, JAK3, STAT1 and STAT3 mRNA in lung tissues. Compared with the group CN, the infiltration of inflammatory cells stained by HE in the experimental group was reduced, and the diameter of the bronchial lumen was broadened (P ＜ 0.01). Both of ELISA and RT-PCR results showed that, compared with group CN, the levels of IL-17a, IL-23 and RORγt, the levels of JAK1, JAK3, STAT1, and STAT3 mRNA were increased in group M. Compared with group M, the mRNA levels of above indicators in group Yqgb were decreased, and the difference was statistically significant (P ＜ 0.01). Correlation analysis revealed that JAK1, JAK3, STAT1 and STAT3 were associated with IL-17a, IL-23, and RORγt had statistical significance (P ＜ 0.05). Therefore, Yiqgubiao Pill can inhibit the inflammatory response in COPD rats model, and its mechanism may be associated with inhibition of JAK/STAT pathway.