Pyruvate Kinase Muscle Isoenzyme 2 (PKM2) Expression Is Associated with Overall Survival in Pancreatic Ductal Adenocarcinoma

Natalie A. Lockney, Manchao Zhang, Yanzhen Lu, Sabrina C. Sopha, M. Kay Washington, Nipun Merchant, Zhiguo Zhao, Yu Shyr, A. Bapsi Chakravarthy, Fen Xia

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

Purpose: Pyruvate kinase muscle isoenzyme 2 (PKM2) is a key enzyme in aerobic glycolysis and is thought to contribute to cancer cell metabolic reprogramming. The aim of this study was to evaluate PKM2 immunohistochemical expression as a potential prognostic biomarker in pancreatic ductal adenocarcinoma (PDAC). Methods: A tissue microarray was constructed using surgical specimens for 115 patients who underwent resections for PDAC, stained with PKM2 antibody, and scored for expression level. Statistical analyses were performed to investigate the association between PKM2 and patient survival, tumor stage, tumor grade, surgical margin status, lymph node ratio, perineural invasion status, or the use of adjuvant chemotherapy. Results: Fifty-three percent of tumors had positive PKM2 expression, and 47 % of tumors had negative PKM2 expression. PKM2 expression was associated with overall survival (HR 0.56, p = 0.007) and CA 19-9 levels (p = 0.035), but was not associated with tumor stage, tumor grade, surgical margin status, lymph node ratio, perineural invasion, or adjuvant chemotherapy use. Conclusions: PKM2 expression is associated with overall survival in PDAC. Further studies are warranted to validate the value of PKM2 as a prognostic biomarker and to examine the potential utility of PKM2 in predicting treatment response, as well as a potential therapeutic target in PDAC.

原文English
頁(從 - 到)390-398
頁數9
期刊Journal of Gastrointestinal Cancer
46
發行號4
DOIs
出版狀態Published - 2015 十二月 1

All Science Journal Classification (ASJC) codes

  • Oncology
  • Gastroenterology

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