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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/31743

    標題: EPAC1 overexpression is a prognostic marker and its inhibition shows promising therapeutic potential for gastric cancer
    作者: Sun, Ding-Ping
    Fang, Chia-Lang
    Chen, Han-Kun
    Wen, Kuo-Shan
    Hseu, You-Cheng
    Hung, Shih-Ting
    Uen, Yih-Huei
    Lin, Kai-Yuan
    貢獻者: Chi Mei Med Ctr, Dept Surg
    Chi Mei Med Ctr, Dept Pharm
    Chi Mei Med Ctr, Dept Med Res
    Chia Nan Univ Pharm & Sci, Dept Food Sci & Technol
    Chia Nan Univ Pharm & Sci, Dept Biotechnol
    Taipei Med Univ, Sch Med, Dept Pathol, Coll Med
    Taipei Med Univ, Dept Pathol, Wan Fang Hosp
    China Med Univ, Dept Cosmeceut
    Asia Univ, Dept Hlth & Nutr Biotechnol
    Chi Mei Hosp Chiali, Superintendents Off
    關鍵字: exchange protein directly activated by cAMP
    gastric cancer
    日期: 2017-04
    上傳時間: 2018-11-30 15:55:02 (UTC+8)
    出版者: Spandidos Publ Ltd
    摘要: cAMP signaling controls a variety of cellular functions. In addition to the well-known signal transducer cAMP-dependent protein kinase, a more recently discovered transducer is the exchange protein directly activated by cAMP (EPAC). EPAC responses are mediated by small G proteins, which regulate biologic functions such as cell adhesion, migration and proliferation. Recently, the clinical importance of EPAC1 has received increased attention. This study investigated the correlations between the expression of EPAC1 and various clinicopathologic parameters as well as the survival of the patients with gastric cancer (GC). The patient cohort in this study consisted of 141 cases of GC that presented from 1999 through 2011; documented clinicopathologic parameters and clinical outcomes were available for all cases. Immunoblotting, immunohistochemistry and quantitative real-time PCR were used to examine EPAC1 expression in gastric cells and tissues. siRNA technology was used to study the effect of EPAC1 knockdown on cell proliferation and invasion. An increase in EPAC1 expression was found in GC cells and tissues. The overexpression of EPAC1 was associated with the depth of invasion (P=0.0021), stage (P=0.0429), and vascular invasion (P=0.0049) and was correlated with poor disease-free survival (P=0.0029) and overall survival (P=0.0024). A univariate Cox regression analysis showed that the overexpression of EPAC1 was a prognostic marker for GC (P=0.038). Furthermore, cell studies indicated that the knockdown of EPAC1 in GC cells suppressed cell proliferation and invasion. The overexpression of EPAC1 can be used as a marker to predict the outcome of patients with GC, and EPAC1 represents a potential therapeutic modality for treating
    關聯: Oncology Reports, v.37, n.4, pp.1953-1960
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    [ 食品科技系 ] 期刊論文

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