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Chinese Pharmacological Bulletin ; (12): 1143-1148, 2023.
Article in Chinese | WPRIM | ID: wpr-1013902

ABSTRACT

Aim To explore the effect of S1P/S1PR1 signaling pathway on high glucose(HG)-induced epithelial-mesenchymal transition of rat renal tubular epithelial cells and its possible mechanism. Methods Cells were treated with different concentrations of glucose, and intracellular S1P expression was detected by ELISA and S1PR1 protein expression was detected by Western blot. The cells were divided into normal control group, HG group and HG + siS1PR1 group. The expression of E-cadherin, Vimentin, Fibronectin and Twist mRNA were detected by RT-qPCR and E-cadherin, α-SMA, Vimentin, NLRP3, ASC and NF-κB protein expression were detected by Western blot, and the levels of reactive oxygen species(ROS) were detected by flow cytometry. The cells were divided into normal control group, S1P group and S1P + siS1PR1 group. Vimentin, Snail, α-SMA, NLRP3, ASC and NF-κB protein expressions were detected by Western blot, and ROS levels were measured by fluorescence microscopy. Results ELISA results showed that the content of S1P in cells increased significantly under high glucose stimulation. Western blot results showed that S1PR1 protein expression was significantly higher at 30 mmol · L

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