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Effect of salvianolic acid B on epithelial-mesenchymal transition in rats with unilateral ureteral obstruction
Author(s): PAN Ronghua, ZUO Guohua, YAO Gang, WU Jining, WU Xiaochun, YANG Chun
Pages: 779-
781,插4
Year: 2008
Issue:
9
Journal: CHINESE JOURNAL OF INTEGRATED TRADITIONAL AND WESTERN NEPHROLOGY
Keyword: 肾脏; 肾小管上皮细胞转分化; 丹酚酸B;
Abstract: 目的:探讨丹酚酸B对输尿管梗阻大鼠肾小管上皮细胞转分化影响及作用机制.方法:雄性SD大鼠,建立单侧输尿管梗阻模型(UUO).设假手术组、模型组、治疗组(丹酚酸B 30 mg·kg-1·d-1)术后第9天处死各组大鼠.采用光镜观察肾间质纤维化、炎细胞浸润,免疫组化观察肾组织转化生长因子-β1(TGF-β1)、α平滑肌肌动蛋白(α-SMA)和Vimentin蛋白表达的变化.结果:(1)治疗组大鼠肾间质纤维化程度较模型组明显减轻;(2)UUO模型第9天时大鼠肾组织TGF-β、α-SMA和Vimentin表达明显增强,炎细胞浸润明显增加.采用丹酚酸B治疗后,肾组织TGF-β1、α-SMA和Vimentin表达的异常增强能得到有效抑制,炎细胞浸润明显减少.结论:丹酚酸B具有减轻肾组织纤维化的作用,而这一作用与其能有效抑制炎细胞浸润和TGF-β1过度表达,进一步阻押肾小管上皮细胞转分化(EMT)有关.
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