期刊
MOLECULAR AND CELLULAR ENDOCRINOLOGY
卷 572, 期 -, 页码 -出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2023.111953
关键词
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In this study, the increased expressions of Egr1 and PAR1 were found in renal tissues of DKD rats. In vitro experiments showed that both Egr1 overexpression and high glucose condition could promote the expressions of PAR1, fibronectin, and collagen I. The binding capacity of Egr1 to PAR1 promoter was enhanced by HG stimulation.
Tubulointerstitial fibrosis (TIF) makes a key role in diabetic kidney disease (DKD). In this study, we revealed that the expressions of Egr1 and protease-activated receptor 1 (PAR1) were increased in renal tissues of DKD rats. In vitro experiments demonstrated that both Egr1 overexpression and high glucose (HG) condition could promote the expressions of PAR1, fibronectin (FN) and collagen I (COL I). Furthermore, HG stimulation enhanced the binding capacity of Egr1 to PAR1 promoter. Both HG condition and Egr1 upregulation could increase, and thrombin inhibitor did not affect activity of TGF-beta 1/Smad pathway via PAR1. Collectively, Egr1 is involved in TIF of DKD partly through activating TGF-beta 1/Smad pathway via transcriptional regulation of PAR1 in HG treated HK-2 cells.
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