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Sunakawa, Y; Wakatsuki, T; Yang, D; Zhang, W; Ning, Y; Stintzing, S; Stremitzer, S; Yamauchi, S; Sebio, A; El-khoueiry, R; Iqbal, S; Barzi, A; Gerger, A; Stotz, M; Azuma, M; Watanabe, M; Koizumi, W; Lenz, HJ.
Prognostic impact of the c-MET polymorphism on the clinical outcome in locoregional gastric cancer patients.
Pharmacogenet Genomics. 2014; 24(12):588-596 Doi: 10.1097/FPC.0000000000000091 [OPEN ACCESS]
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Co-Autor*innen der Med Uni Graz
Gerger Armin
Stotz Michael

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Dysregulation of the c-MET signaling pathway results from various molecular mechanisms including mutation, amplification, and overexpression. Overexpression and amplification of c-MET have been correlated with poor clinical outcome in gastric cancer, whereas the associations between c-MET polymorphisms and prognosis have not been well defined. We examined the prognostic impact of functional polymorphisms of the MET gene on clinical outcome in gastric cancer. Candidate polymorphisms of the MET gene were analyzed by PCR-based direct sequencing for the associations with clinical outcome across three independent cohorts, including 161 Japanese, 101 US, and 63 Austrian patients, with locoregional gastric cancer, treated with surgery. The univariable analysis showed that patients with any G (A/G or G/G genotype) allele of MET rs40239 had significantly longer disease-free survival and overall survival compared with those with the AA genotype in the Japanese cohort [hazard ratio (HR): 0.43, P=0.001, and HR: 0.47, P=0.006, respectively]; this remained significant upon multivariable analysis adjusted for age, sex, stage, and type of adjuvant therapy (HR: 0.48; P=0.009, HR: 0.50; P=0.017, respectively). However, there was no significant association of the polymorphism with clinical outcome in the US and Austrian cohorts. When stratified by sex in the Japanese cohort, male individuals, but not female individuals, with the G allele maintained a clinical outcome benefit in both univariable and multivariable analyses. MET rs40239 may serve as a prognostic biomarker in locoregional gastric cancer. These data also suggest that genetic variants of c-MET may show sex-related differences in the impact on clinical outcome.
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Adult -
Aged -
Aged, 80 and over -
Aged, 80 and over -
Female -
Humans -
Humans -
Male -
Middle Aged -
Polymorphism, Genetic -
Proto-Oncogene Proteins c-met - genetics
Sex Factors -
Stomach Neoplasms - drug therapy
Stomach Neoplasms - genetics
Stomach Neoplasms - pathology
Survival Analysis -
Treatment Outcome -
Treatment Outcome -

Find related publications in this database (Keywords)
gastric cancer
prognostic biomarker
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