芍药苷调控PI3K/Akt/mTOR通路对类风湿关节炎大鼠作用机制研究
毛珍 , 江润 , 杨星 , 王进军
吉林中医药 ›› 2026, Vol. 46 ›› Issue (7) : 889 -895.
芍药苷调控PI3K/Akt/mTOR通路对类风湿关节炎大鼠作用机制研究
The effect and mechanisms of paeoniflorin on the cartilage tissue in rats with rheumatoid arthritis based on regulating the PI3K/Akt/mTOR signaling pathway
目的 基于磷酸肌醇3激酶(PI3K)/蛋白激酶B(Akt)/哺乳动物雷帕霉素靶蛋白(mTOR)通路探讨芍药苷对类风湿关节炎大鼠软骨组织作用机制。 方法 60只SD雄性大鼠随机分为正常组、模型组、PI3K抑制剂组、芍药苷组、芍药苷+PI3K激动剂组,每组12只。除空白组外,其余各组均造模。观察各组大鼠不同时间节点关节炎指数,番红固绿染色观察大鼠病理形态学,TUNEL检测大鼠软骨组织细胞凋亡,Western blot检测各组大鼠软骨组织中PI3K、Akt、mTOR、Beclin1、ULK1、LC3、MMP-1、MMP-3蛋白表达,免疫组化检测大鼠软骨组织PI3K、Akt、mTOR蛋白表达水平。 结果 与模型组比较,芍药苷组和PI3K抑制剂组大鼠关节炎指数降低(P<0.01),软骨组织细胞凋亡平均荧光强度升高(P<0.01),PI3K、Akt、mTOR、MMP-1、MMP-3蛋白表达降低(P<0.01),Beclin1、ULK1、LC3蛋白表达升高(P<0.01)。 结论 芍药苷能调控PI3K/Akt/mTOR信号通路,调节软骨细胞凋亡和自噬,调节基质水解酶水平,保护关节软骨。
Objective To observe the effect and mechanisms of paeoniflorin on the cartilage tissue in rats with rheumatoid arthritis based on the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway. Methods Sixty male SD rats were randomly divided into the blank group, the model group, the PI3K inhibitor group, the paeoniflorin group, and the paeoniflorin + PI3K agonist group, with 12 rats in each group. Except for the blank group, a rheumatoid arthritis model was established in the other groups. The arthritis index of rats was observed in each group at different time points, and the pathological morphology was observed by safranine green staining, while the apoptosis of cartilage tissue cells was detected by TUNEL, and the protein expression levels of PI3K, Akt, mTOR, Beclin1, ULK1, LC3, MMP-1, and MMP-3 in cartilage tissue were detected by Western blot in each group, and the protein expression levels of PI3K, Akt, and mTOR in cartilage tissue were measured by immunohistochemistry. Results Compared with the model group, the arthritis index of rats was significantly reduced in the paeoniflorin group and the PI3K inhibitor group (P<0.01), while the average fluorescence intensity of cartilage tissue cell apoptosis was significantly increased (P<0.01), and the protein expression levels of PI3K, Akt, mTOR, MMP-1, and MMP-3 in cartilage tissue of rats were significantly decreased (P<0.01), while the protein expression levels of Beclin1, ULK1, and LC3 were significantly increased (P<0.01). Conclusion Paeoniflorin can act on the PI3K/Akt/mTOR signaling pathway, regulate cartilage cell apoptosis and autophagy, regulate matrix hydrolases, thereby protect articular cartilage.
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湖北省中医药管理局中医药重大项目(ZY2025Z014)
武汉市卫生计生科研基金资助(WZ24Q02)
武汉市蔡甸区人民医院院内科研项目(XHJBYYKXYJJJ-QNXM-05)
武汉市蔡甸区人民医院院内科研项目(XHJBKXYJJJ-MSXM-03)
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