Article Publish Status: FREE
Abstract Title:

Fine Particulate Matter Leads to Unfolded Protein Response and Shortened Lifespan by Inducing Oxidative Stress in.

Abstract Source:

Oxid Med Cell Longev. 2019 ;2019:2492368. Epub 2019 Dec 7. PMID: 31885780

Abstract Author(s):

Yunli Zhao, Ling Jin, Yuxin Chi, Jing Yang, Quan Zhen, Huazhang Wu

Article Affiliation:

Yunli Zhao


Oxidative stress has been proven as one of the most critical regulatory mechanisms involved in fine Particulate Matter- (PM-) mediated toxicity. For a better understanding of the underlying mechanisms that enable oxidative stress to participate in PM-induced toxic effects, the current study explored the effects of oxidative stress induced by PMon UPR and lifespan in. The results implicated that PMexposure induced oxidative stress response, enhanced metabolic enzyme activity, activated UPR, and shortened the lifespan of. Antioxidant N-acetylcysteine (NAC) could suppress the UPR through reducing the oxidative stress; both the antioxidant NAC and UPR inhibitor 4-phenylbutyric acid (4-PBA) could rescue the lifespan attenuation caused by PM, indicating that the antioxidant and moderate proteostasis contribute to the homeostasis and adaptation to oxidative stress induced by PM.

Study Type : Animal Study

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