Nano-Sustained CO-Releasing Molecules Alleviates Cyclosporin-A-Induced Nephrotoxicity and Renal Fibrosis by Inhibiting NLRP3 Inflammasome-Mediated TGF-β/Smad Signaling Pathway
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Keywords

NLRP3
TGF-beta
Smad
Renal fibrosis

DOI

10.26689/jcnr.v7i3.4806

Submitted : 2023-05-01
Accepted : 2023-05-16
Published : 2023-05-31

Abstract

Objective: To investigate the effect nano-sustained CO-releasing molecules on cyclosporin-A (CsA)-induced nephrotoxicity by inhibiting the NLRP3 inflammasome-mediated TGF-β/Smad signaling pathway. Methods: 3×105 cell/mL human renal tubular epithelial cells (HK-2) and mouse primary cultured renal tubular epithelial cells (RTECs) were cultured under an inverted microscope and incubated with 10% DMEM and 0.25% β2M in NaCl solution for 3 h. HK-2 and RTECs were divided into 5 complex numbers. MTT assay was used to detect the relative proliferation level of one of the HK-2 cells and calculate the multiplication ratio. Results: The nano-sustained CO-releasing molecules CS-CO had a strong protective effect on the kidney. HK-2 and RTECs cells were treated with siRNA, inhibitors, and NLRP3 knockout mice, and the changes in cell activity and expression of intracellular inflammatory factors were studied. The expression of TGF-β1/Smad signaling pathway related proteins in HK-2 and RTECs was detected by ELISA, western blot, immunofluorescence, and other techniques. Conclusion: SMA/CORM2 alleviates CsA-induced renal fibrosis by inhibiting NLRP3 inflammasome-mediated TGF-β/Smad signaling pathway.

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