國家衛生研究院 NHRI:Item 3990099045/10424
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/10424


    Title: Oncogenic MCT-1 activation promotes YY1-EGFR-MnSOD signaling and tumor progression
    Authors: Tseng, HY;Chen, YA;Jen, J;Shen, PC;Chen, LM;Lin, TD;Wang, YC;Hsu, HL
    Contributors: Institute of Molecular and Genomic Medicine
    Abstract: Tumor cells often produce high levels of reactive oxygen species (ROS) and display an increased ROS scavenging system. However, the molecular mechanism that balances antioxidative and oxidative stress in cancer cells is unclear. Here, we determined that oncogenic multiple copies in T-cell malignancy 1 (MCT-1) activity promotes the generation of intracellular ROS and mitochondrial superoxide. Overexpression of MCT-1 suppresses p53 accumulation but elevates the manganese-dependent superoxide dismutase (MnSOD) level via the YY1-EGFR signaling cascade, which protects cells against oxidative damage. Conversely, restricting ROS generation and/or targeting YY1 in lung cancer cells effectively inhibits the EGFR-MnSOD signaling pathway and cell invasiveness induced by MCT-1. Significantly, MCT-1 overexpression in lung cancer cells promotes tumor progression, necrosis and angiogenesis, and increases the number of tumor-promoting M2 macrophages and cancer-associated fibroblasts in the microenvironment. Clinical evidence further confirms that high expression of MCT-1 is associated with an increase in YY1, EGFR and MnSOD expression, accompanied by tumor recurrence, poor overall survival and EGFR mutation status in patients with lung cancers. Together, these data indicate that the MCT-1 oncogenic pathway is implicated in oxidative metabolism and lung carcinogenesis.
    Date: 2017-04-10
    Relation: Oncogenesis. 2017 Apr 10;6(4):Article number e313.
    Link to: http://dx.doi.org/10.1038/oncsis.2017.13
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2157-9024&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000401107400007
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85038921920
    Appears in Collections:[Hsin-Ling Hsu] Periodical Articles

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