國家衛生研究院 NHRI:Item 3990099045/12115
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    題名: MAP4K3/GLK promotes lung cancer metastasis by phosphorylating and activating IQGAP1
    作者: Chuang, HC;Chang, CC;Teng, CF;Hsueh, CH;Chiu, LL;Hsu, PM;Lee, MC;Hsu, CP;Chen, YR;Liu, YC;Lyu, PC;Tan, TH
    貢獻者: Immunology Research Center;Institute of Molecular and Genomic Medicine;Institute of Population Health Sciences
    摘要: Overexpression of the serine/threonine kinase GLK/MAP4K3 in human lung cancer is associated with poor prognosis and recurrence, however, the role of GLK in cancer recurrence remains unclear. Here, we report that transgenic GLK promotes tumor metastasis and cell migration through the scaffold protein IQ motif-containing GTPase-activating protein 1(IQGAP1). GLK transgenic mice displayed enhanced distant metastasis. IQGAP1 was identified as a GLK interacting protein; two proline-rich regions of GLK and the WW domain of IQGAP1 mediated this interaction. GLK and IQGAP1 co-localized at the leading edge including filopodia and lamellipodia of migrating cells. GLK directly phosphorylated IQGAP1 at Ser-480 enhancing Cdc42 activation and subsequent cell migration. GLK-induced cell migration and lung cancer metastasis were abolished by IQGAP1 depletion. Consistently, human NSCLC patient tissues displayed increased phospho-IQGAP1 which correlated with poor survival. Collectively, GLK promotes lung cancer metastasis by binding to, phosphorylating, and activating IQGAP1.
    日期: 2019-10
    關聯: Cancer Research. 2019 Oct;79(19):4978-4993.
    Link to: http://dx.doi.org/10.1158/0008-5472.Can-19-1402
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0008-5472&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000489626000016
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85072767167
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