國家衛生研究院 NHRI:Item 3990099045/8814
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8814


    Title: Mitochondrial Lon protease controls ROS-dependent apoptosis in cardiomyocyte under hypoxia
    Authors: Kuo, CY;Chiu, YC;Lee, AY;Hwang, TL
    Contributors: National Institute of Cancer Research
    Abstract: Apoptosis of cardiomyocytes, under ischemic conditions, has been identified as an essential process in the progression of heart failure. Under hypoxic conditions, mitochondria can become a threat to the cell because of their capacity to generate reactive oxygen species (ROS). As ROS appear to have a critical role in heart failure, there has been considerable interest in identifying the candidate proteins involved and in developing strategies to reduce oxidative stress. Lon protease (Lon) is a multifunctional protein that mediates protein quality control and stress response in mitochondria. However, comprehensive and detailed studies, on the role of Lon in hypoxia-induced cardiomyocyte apoptosis, have yet to be carried out. In the present study, we demonstrated that hypoxia induced ROS-dependent cardiomyocyte apoptosis. Lon was upregulated in hypoxia-induced cardiomyocytes. Lon downregulation attenuated hypoxia-induced cardiomyocyte apoptosis through a reduction of ROS level. Moreover, overexpression of Lon stimulated ROS production and induced apoptosis under normoxic conditions in cardiomyocytes. Our results identify Lon as a novel regulator of cardiomyocyte fate and offers exciting new insights into the therapeutic potential of hypoxia-induced cardiomyocyte apoptosis.
    Date: 2015-07
    Relation: Mitochondrion. 2015 Jul;23:7-16.
    Link to: http://dx.doi.org/10.1016/j.mito.2015.04.004
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1567-7249&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000358823800002
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84929320357
    Appears in Collections:[Alan Yueh-Luen Lee] Periodical Articles

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