Open Access

Hydrogen sulfide attenuates renal I/R‑induced activation of the inflammatory response and apoptosis via regulating Nrf2‑mediated NLRP3 signaling pathway inhibition

  • Authors:
    • Yonghong Su
    • Yaoqi Wang
    • Min Liu
    • Hongguang Chen
  • View Affiliations

  • Published online on: May 17, 2021     https://doi.org/10.3892/mmr.2021.12157
  • Article Number: 518
  • Copyright: © Su et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Renal ischemia/reperfusion (I/R) injury can lead to acute renal failure, delayed graft function and graft rejection. Nucleotide‑binding oligomerization domain NOD‑like receptor containing pyrin domain 3 (NLRP3)‑mediated inflammation participates in the development of renal injury. Nrf2 accelerates NLRP3 signaling pathway activation and further regulates the inflammatory response. In addition, hydrogen sulfide serves a protective role in renal injury; however, the detailed underlying mechanism remains poorly understood. The present study investigated whether Nrf2 and NLRP3 pathway participate in hydrogen sulfide‑regulated renal I/R‑induced activation of the inflammatory response and apoptosis. Wild‑type and Nrf2‑knockout (KO) mice underwent surgery to induce renal I/R via clamping of the bilateral renal pedicles. A total of 20 mg/kg MCC950 (an NLRP3 inhibitor) was injected intraperitoneally daily for 14 days prior to surgery. Renal tissue and blood were collected from the I/R model mice to analyze NLRP3 and Nrf2 mRNA expression levels, NLRP3, PYD and CARD domain containing, caspase‑1, IL‑1β, Nrf2 and heme oxygenase 1 protein expression levels, cell apoptosis, the secretion of tumor necrosis factor‑α, IL‑1β and IL‑6 cytokines and renal histopathology and function. Renal I/R activated the NLRP3 and Nrf2 signaling pathways. Conversely, MCC950 treatment inhibited activation of the NLRP3 signaling pathway, and prevented I/R‑induced renal injury, release of cytokines and apoptosis in renal I/R model mice. Sodium hydrosulfide (NaHS) not only alleviated upregulation of NLRP3 protein expression levels, but also relieved renal injury, release of cytokines and cell apoptosis induced by renal I/R in wild‑type mice, but not in Nrf2‑KO mice. NaHS alleviated NLRP3 inflammasome activation, renal injury, the inflammatory response and cell apoptosis via the Nrf2 signaling pathway in renal I/R model mice.
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July-2021
Volume 24 Issue 1

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Spandidos Publications style
Su Y, Wang Y, Liu M and Chen H: Hydrogen sulfide attenuates renal I/R‑induced activation of the inflammatory response and apoptosis via regulating Nrf2‑mediated NLRP3 signaling pathway inhibition. Mol Med Rep 24: 518, 2021.
APA
Su, Y., Wang, Y., Liu, M., & Chen, H. (2021). Hydrogen sulfide attenuates renal I/R‑induced activation of the inflammatory response and apoptosis via regulating Nrf2‑mediated NLRP3 signaling pathway inhibition. Molecular Medicine Reports, 24, 518. https://doi.org/10.3892/mmr.2021.12157
MLA
Su, Y., Wang, Y., Liu, M., Chen, H."Hydrogen sulfide attenuates renal I/R‑induced activation of the inflammatory response and apoptosis via regulating Nrf2‑mediated NLRP3 signaling pathway inhibition". Molecular Medicine Reports 24.1 (2021): 518.
Chicago
Su, Y., Wang, Y., Liu, M., Chen, H."Hydrogen sulfide attenuates renal I/R‑induced activation of the inflammatory response and apoptosis via regulating Nrf2‑mediated NLRP3 signaling pathway inhibition". Molecular Medicine Reports 24, no. 1 (2021): 518. https://doi.org/10.3892/mmr.2021.12157