國家衛生研究院 NHRI:Item 3990099045/5108
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/5108


    Title: Stress-induced phosphoprotein 1 as a secreted biomarker for human ovarian cancer promotes cancer cell proliferation
    Authors: Wang, TH;Chao, A;Tsai, CL;Chang, CL;Chen, SH;Lee, YS;Chen, JK;Lin, YJ;Chang, PY;Wang, CJ;Chao, AS;Chang, SD;Chang, TC;Lai, CH;Wang, HS
    Contributors: Center for Nanomedicine Research
    Abstract: Ovarian cancers are frequently not diagnosed until advanced stages, resulting in a high case fatality rate. Because of this, more tumor markers, in addition to CA125, for detecting and monitoring ovarian cancer are needed. During a systematic search for potential biomarkers of ovarian cancer, we compared the protein profiles between tumor interstitial fluid and normal interstitial fluid of ovaries, rationalizing that abnormal levels of proteins in tumor interstitial fluid may be detected in peripheral blood and thus serve as easily accessible tumor markers. Here, we show that stress-induced phosphoprotein 1 (STIP1) was secreted by ovarian cancer tissues into the peripheral blood of patients, resulting in a significant increase of serum levels of STIP1 in cancer patients compared with those in age-matched normal controls. Our results further indicated that combined use of CA125 and STIP1 may increase early detection of ovarian cancer. Functionally, recombinant STIP1 significantly induced ERK phosphorylation, promoted DNA synthesis, and increased Ki-67 immunoreactivity in ovarian cancer cells, suggesting that STIP1 in vitro promotes cell proliferation. Colocalization of STIP1 and phospho-ERK in human ovarian cancer tissues also supports an in vivo activation of ERK by STIP1. Further understanding of molecular roles of STIP1 in human ovarian cancer may shed light on its pathophysiology and development of novel therapeutic strategies. Molecular & Cellular Proteomics 9:1873-1884, 2010.
    Date: 2010-09
    Relation: Molecular and Cellular Proteomics. 2010 Sep;9(9):1873-1884.
    Link to: http://dx.doi.org/10.1074/mcp.M110.000802
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1535-9484&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000281562100007
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77956498726
    Appears in Collections:[Jen-Kun Chen] Periodical Articles

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