國家衛生研究院 NHRI:Item 3990099045/8424
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8424


    Title: Ribose-5-phosphate isomerase A regulates hepatocarcinogenesis via PP2A and ERK signaling
    Authors: Ciou, SC;Chou, YT;Liu, YL;Nieh, YC;Lu, JW;Huang, SF;Cheng, LH;Lo, JF;Chen, MJ;Yang, MC;Yuh, CH;Wang, HD
    Contributors: Institute of Molecular and Genomic Medicine
    Abstract: The deregulated nonoxidative pentose phosphate pathway (PPP) is known to promote oncogenesis, but the molecular mechanism remains unknown. Here, we report that human ribose-5-phosphate isomerase A (RPIA) plays a role in human hepatocellular carcinoma (HCC). A significant increase in RPIA expression was detected both in tumor biopsies of HCC patients and in a liver cancer tissue array. Importantly, the clinicopathological analysis indicated that RPIA mRNA levels were highly correlated with clinical stage, grade, tumor size, types, invasion and alpha-fetoprotein levels in the HCC patients. In addition, we demonstrated that the ability of RPIA to regulate cell proliferation and colony formation in different liver cancer cell lines required ERK signaling as well as the negative modulation of PP2A activity and that the effects of RPIA could be modulated by the addition of either a PP2A inhibitor or activator. Furthermore, the xenograft studies in nude mice revealed that the modulation of RPIA in liver cancer cells regulated tumor growth and that NIH3T3 cells overexpressing RPIA exhibited increased proliferation, enhanced colony formation, elevated levels of p-ERK1/2 and accelerated tumor growth. This study provides new insight into the molecular mechanisms by which RPIA overexpression can induce oncogenesis in HCC. Furthermore, it suggests that RPIA can be a good prognosis biomarker and a potential target for HCC therapy.
    Date: 2015-07
    Relation: International Journal of Cancer. 2015 Jul 1;137(1):104-115.
    Link to: http://dx.doi.org/10.1002/ijc.29361
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0020-7136&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000353297600010
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84930417979
    Appears in Collections:[Chiou-Hwa Yuh] Periodical Articles
    [Shiu-Feng Kathy Huang] Periodical Articles

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