期刊
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
卷 194, 期 2, 页码 1000-1012出版社
SPRINGER
DOI: 10.1007/s12010-021-03661-2
关键词
Kidney disease; Diabetic; Epithelial-mesenchymal transition; Triptolide; Podocyte
资金
- Huzhou Municipal Science and Technology Bureau Public Welfare Application Research Project [2017GY23, 2020GY17]
- Zhejiang Medical and Health Science and Technology Project [2017KY639]
- Zhejiang Science and Technology Planning Project [2017C37106]
The study aimed to decipher the mechanism by which triptolide may prevent podocyte epithelial-mesenchymal transition, possibly by activating kindlin-2 and TGF-beta/Smad pathways. Triptolide treatment in diabetic mice was found to alleviate structural injuries and functional variations, increase protein and mRNA levels of key markers, and decrease expression of alpha-SMA through inactivation of kindlin-2 and downregulation of P-SMAD3 in the TGF-beta/Smad signaling pathway.
Diabetes-induced chronic kidney diseases are widespread and decrease the quality of life for millions of affected individuals in China. To date, no therapies effectively alleviate these conditions. Triptolide, a traditionally used Chinese medicine, has shown promise in treating renal diseases. Here, the study aimed to decipher the exact mechanism by which it functions. It was hypothesized that triptolide might prevent the epithelial-mesenchymal transition (EMT) of podocytes by activating the kindlin-2 and TGF-beta/Smad pathways. Triptolide or telmisartan was intragastrically administered to 9-week-old db/db and dm/dm mice with diabetic nephropathy (DN) for 12 weeks. In addition, biochemical parameters and body weight were detected. WT-1, nephrin, podocin, E-cadherin, and alpha-SMA were determined by immunohistochemistry in the renal tissues of treated mice. Protein and mRNA expression of podocyte EMT markers, kindlin-2 and TGF-beta/Smad, were analyzed to elucidate the underlying mechanism. It was observed that triptolide treatment relieved structural injuries and functional variations in diabetic mice. It also increased the protein and mRNA levels of nephrin, podocin, and E-cadherin and decreased the expression of alpha-SMA in diabetic mice. The protein and mRNA expressions of TGF-beta 1, p-SMAD3, and kindlin-2 decreased in diabetic kidneys following triptolide treatment. The findings demonstrated that triptolide might protect podocytes during DN by inhibiting podocyte EMT through inactivation of kindlin-2, combined with the downregulation of P-SMAD3 in the TGF-beta/Smad signaling pathway.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据