國家衛生研究院 NHRI:Item 3990099045/3485
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/3485


    Title: Glutathione regulation in arsenic-induced porcine aortic endothelial cells
    Authors: Cheng, YH;Ou, BR;Cheng, LC;Lu, JH;Yeh, JY
    Contributors: Division of Environmental Health and Occupational Medicine
    Abstract: The objective was to investigate the regulation of glutathione (GSH) turnover in porcine aortic endothelial cells (PAECs) treated with sodium arsenite (NaAsO2), arsenic trioxide (As2O3) or sodium arsenate (Na2HAsO4) up to 72 hr at 0, 1, 5, and 10 μM, respectively. Intracellular GSH and glutathione disulfide (GSSG) contents, as well as the activities and mRNA levels of glutamate-cysteine lyase (GCL; γ-glutamylcysteine synthetase) and γ-glutamyl transpeptidase (GGT), were examined. The trivalent arsenic compounds increased GSH and GSSG contents in PAECs. An increase in GCL activity was observed at 24 hr whereas an increase in GCL mRNA level was observed at 72 hr. The increase in GGT activity was only observed at 72 hr. In addition, a tendency of increase in GGT mRNA level was observed. Na2HAsO4 treatment did not affect GSH content and the turnover-related enzymes. A differential GSH modulation in PAECs by trivalent arsenic compounds was found. The regulatory mechanism responsible for the As2O3-induced GSH increase is related to the GSH-turnover enzymes, GCL and GGT, while that for the NaAsO2-induced GSH increase may not be related to expression of GSH-turnover enzymes. ? 2008 Elsevier Ltd. All rights reserved.
    Date: 2008-12
    Relation: Toxicology in Vitro. 2008 Dec;22(8):1832-1839.
    Link to: http://dx.doi.org/10.1016/j.tiv.2008.08.006
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0887-2333&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000261583800004
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=55149112585
    Appears in Collections:[Others] Periodical Articles

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