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Research Paper|Volume 14, Issue 22|pp 8970—8981

Antrodia Camphorata Polysaccharide activates autophagy and regulates NLRP3 degradation to improve liver injury-related inflammatory response

Shuiliang Ruan1, Yi Yang2, Wenyan Li2
  • 1Department of Gastroenterology, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314001, Zhejiang Province, China
  • 2Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314001, Zhejiang Province, China
Received: August 4, 2022Accepted: September 26, 2022Published: October 10, 2022
https://doi.org/10.18632/aging.204330

Copyright: © 2022 Ruan et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

This study illustrated the liver protection mechanism of ACP from the perspective of autophagy activation. ACP suppressed the inflammatory injury of KCs, and decreased the cell apoptosis rate. After LTG and LC3 staining, ACP promoted lysosomal production, increased LC3 expression, activated autophagy, and suppressed the expression of NLRP3 and inflammatory factors. Under the electron microscope, ACP accelerated the production of autophagosomes. After simultaneous treatment with 3-MA and ACP, the effect of ACP on resisting KC injury decreased, the expression of NLRP3 was up-regulated, and autophagy was suppressed. As discovered in the mouse model of liver injury, ACP inhibited the ALT and AST levels, promoted the occurrence of autophagy, reduced NLRP3 expression and alleviated liver injury.

ACP activates autophagy to induce NLRP3 degradation, thus suppressing inflammatory response in liver injury and exerting the liver protection effect, which is one of the mechanisms of action of ACP.