Effect of Moxibustion on the Expressions of Protein KGF-1, KGF-2 and IL-6 in Colon of Rats with Ulcerative Colitis

艾灸对溃疡性结肠炎大鼠结肠KGF-1、KGF-2和IL-6蛋白表达的影响(英文)

Objective： To observe the effect of moxibustion on the expressions of protein keratinocyte growth factor-1 （KGF-1）, KGF-2, and interleukin-6 （IL-6） in colon of rats with ulcerative colitis （UC）, and to explore the action mechanism of moxibustion in treating UC. Methods： SD rats were randomized into a normal group, a model group, a herbs-partitioned moxibustion group, and a sulfasalazine （SASP） group. The rats in the herbs-partitioned group were treated with herbs-partitioned moxibustion at Tianshu （ST 25） and Qihai （CV 6）, and those in the SASP group were treated by intragastric administration. After interventions, HE staining and light microscope were adopted in observing the histopathological changes of rat＇s colon, and immunohistochemical methods for detecting the expressions of KGF-1, KGF-2, and IL-6 proteins in rat＇s colon. Results： Compared with the model group, the rats＇ colons in the herbs-partitioned moxibustion group and the SASP group were histopathologically improved; compared with the normal group, the expressions of KGF-1, KGF-2, and IL-6 proteins increased significantly in the model group （P〈0.05）; after intervened by herbs-partitioned moxibustion and SASP respectively, the expressions of KGF-1, KGF-2, and IL-6 proteins in rat＇s colon were decreased markedly （P〈0.05）. Conclusion： Both herbs-partitioned moxibustion and SASP can down-regulate the expressions of KGF-1, KGF-2, and IL-6 proteins in rat＇s colon, which might be one of the mechanisms of herbs-partitioned moxibustion and SASP in treating UC.

目的:观察艾灸对溃疡性结肠炎大鼠结肠角质细胞生长因子-1(Keratinocyte Growth Factor-1,KGF-1)、角质细胞生长因子-2(Keratinocyte Growth Factor-2,KGF-2)KGF-2和白介素-6(Interleukin-6,IL-6)蛋白表达的影响,进一步探讨艾灸治疗溃疡性结肠炎的作用机制。方法:将SD大鼠随机分为正常组、模型组、隔药灸组和柳氮磺胺吡啶(Sulfasalazine,SASP)组。隔药灸组采用隔药灸天枢和气海穴治疗;SASP组采用柳氮磺胺吡啶灌胃干预。干预结束后,应用HE染色光镜下观察各组大鼠结肠病理学变化,采用免疫组织化学法检测大鼠结肠KGF-1、KGF-2和 IL-6 蛋白表达变化。结果:与模型组比较,隔药灸组和SASP组大鼠结肠病理学均有一定的改善;与正常组比较,模型组大鼠结肠 KGF-1、KGF-2 和IL-6蛋白表达均显著增加(P<0.05);经隔药灸和SASP干预后,大鼠结肠KGF-1、KGF-2和IL-6蛋白表达均显著降低(P<0.05)。结论:隔药灸和SASP均能下调溃疡性结肠炎大鼠结肠KGF-1、KGF-2和IL-6的蛋白表达,该作用可能是隔药灸和SASP治疗溃疡性结肠炎的重要机制之一。