國家衛生研究院 NHRI:Item 3990099045/13929

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Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/13929

Title:	The nephrotoxic potential of polystyrene microplastics at realistic environmental concentrations
Authors:	Chen, YC;Chen, KF;Lin, KYA;Chen, JK;Jiang, XY;Lin, CH
Contributors:	Institute of Biomedical Engineering and Nanomedicine;Laboratory Animal Center
Abstract:	As microplastics (MPs) dispersed into the environment, people might be exposed to MPs. Most pollutants either pass through or concentrate in the kidney. Therefore, nephrotoxicity tests are needed to verify the toxic potential of MPs. Here we used human embryonic kidney 293 (HEK293) cells to determine the association between nephrotoxicity and round-shape polystyrene MPs (PSMPs) (3.54 ± 0.39 μm) under realistic environmental exposure concentrations. Results revealed that PSMPs can adhere to the cell membrane and get entirely engulfed by HEK293 cells. PSMPs can induce cytotoxicity by oxidative stress via inhibition of the antioxidant haem oxygenase-1. Depolarisation of the mitochondrial membrane potential and formation of autophagosomes confirmed that apoptosis and autophagy can be simultaneously induced by PSMPs. The inflammatory factor was only activated (33 cytokines) by noncytotoxic concentration of PSMPs (3 ng/mL); however, the cytotoxic concentration (300 ng/mL) of PSMPs induced autophagy, which might further reduce NLRP3 expression, thus contributing to dampening inflammation (35 cytokines) in HEK293 cells. PSMPs (300 ng/mL) can impair kidney barrier integrity and increase the probability of developing acute kidney injury through the depletion of the zonula occludens-2 proteins and α1-antitrypsin. Altogether, our results demonstrated that environmental exposure to PSMPs may lead to an increased risk of renal disease.
Date:	2022-04-05
Relation:	Journal of Hazardous Materials. 2022 Apr;427:Article number 127871.
Link to:	http://dx.doi.org/10.1016/j.jhazmat.2021.127871
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0304-3894&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000752459900003
Cited Times(Scopus):	https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85120466448
Appears in Collections:	[Jen-Kun Chen] Periodical Articles [Others] Periodical Articles

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