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首页> 外文期刊>Journal of Cellular Physiology >The potential role of aquaporin 1 on aristolochic acid I induced epithelial mesenchymal transition on HK‐2 cells
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The potential role of aquaporin 1 on aristolochic acid I induced epithelial mesenchymal transition on HK‐2 cells

机译:水通道蛋白1在马兜铃的潜在作用我酸诱导上皮间充质转变在香港还是2细胞

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Aristolochic acid I (AA‐I), one of the main active components in Aristolochaia herbs, may induce aristolochic acid nephropathy (AAN). Renal interstitial fibrosis is one of the most typical features of AAN. To investigate the mechanism of Aristolochic acid I (AA‐I) ?induced renal epithelial‐mesenchymal transition (EMT) and determine the role of aquaporin‐1 (AQP1) in this process, we established an AA‐I‐induced EMT model in human proximal tubular epithelial cells (HK‐2 cells). Morphological examination, MTT assay, and Western blot analysis were performed. Aquaporin 1 (AQP1) and several EMT‐related proteins were detected, thereby suggesting the occurrence of AA‐I‐induced EMT. Two main pathways of transforming growth factor‐β (TGF‐β) signaling, namely, Smad‐dependent and Smad‐independent signaling pathways, were also detected. The results showed that the TGF‐β / Smad‐independent signaling pathways (β‐catenin, Ras‐Raf‐Erk1/2 signaling pathways) were activated, and AQP1 expression was decreased during the AA‐I induced EMT on HK‐2 cells. With the presence of TGF‐β1 receptor inhibitor (LY364947) and Erk1/2 inhibitor (PD98059), AQP1 expression was altered by PD98059, suggested that AQP1 could be adjusted by Erk1/2 signaling. Moreover, the inhibitory effect of AA‐I on AQP1 was stronger than that of TGF‐β1, suggested that AQP1 may be an important target on AAN clinical therapy.
机译:马兜铃酸我地理(AA)的一个主要活动组件Aristolochaia草药,可能诱发马兜铃酸肾病(感染)。间质纤维化是最典型之一河畔的特性。马兜铃酸我地理(AA) ?诱导肾上皮间充质(EMT)和过渡确定水通道蛋白1 (AQP1)应承担的角色过程中,我们建立了一个AA我诱导EMT模型在人类近端小管上皮细胞(HK 2细胞)。免疫印迹分析进行。(AQP1)和几个EMT相关蛋白质检测,从而暗示的发生AA我诱导EMT应承担的。转化生长因子β应承担(TGFβ应承担)信号,即Smad依赖和Smad独立信号通路,也被检测到。结果表明,TGFβ/ Smad还是独立的信号通路(β连环蛋白应承担的Ras Raf Erk1/2应承担的信号通路)被激活,AQP1表达式是我诱导期间减少AA所致EMT在香港2细胞。受体抑制剂(LY364947)和Erk1/2抑制剂(PD98059), AQP1的表达改变PD98059,表明AQP1可以调整Erk1/2信号。AA的效果我AQP1是强壮的地理TGFβ1,表明AQP1可能是重要的目标感染的临床治疗。

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