Biomarker development by cancer proteomics
Kondo, T.
Nihon Rinsho. Japanese Journal of Clinical Medicine 70(5): 754-758
2012
ISSN/ISBN: 0047-1852 PMID: 22619997 Document Number: 657136
Cancer is a genetically and clinically diverse disease, and biomarkers are required to optimize the therapeutic strategies. Proteome is a functional translation of genome, directly regulating cancer phenotypes. Biomarker studies have been conducted by the proteomic approach. By the proteomic approach, we developed a novel prognostic biomarker in gastrointestinal stromal tumor(GIST). In GIST, adjuvant imatinib mesylate after resection improved recurrence-free survival. A prognostic biomarker is required to select the patients for the treatment with imatinib mesylate. Proteomic approach using two-dimensional difference gel electrophoresis(2D-DIGE) identified pfetin as a biomarker for favorable prognosis. Multi-institutional validation study by immunohistochemistry established the prognostic values of pfetin in GIST. Pfetin will be applicable for a novel prognostic modality.