PMID- 25203737 OWN - NLM STAT- MEDLINE DCOM- 20150611 LR - 20211021 IS - 1744-6880 (Electronic) IS - 1744-6872 (Print) IS - 1744-6872 (Linking) VI - 24 IP - 11 DP - 2014 Nov TI - Single nucleotide polymorphisms in AREG and EREG are prognostic biomarkers in locally advanced gastric cancer patients after surgery with curative intent. PG - 539-47 LID - 10.1097/FPC.0000000000000087 [doi] AB - OBJECTIVE: Amphiregulin (AREG) and epiregulin (EREG) are important ligands to the epithelial growth factor receptor, which is involved in the regulation of progression and stemness in gastric cancer (GC). This study investigated whether frequent single nucleotide polymorphisms (SNPs) in genes of AREG and EREG are associated with recurrence-free survival and overall survival in patients with locally advanced GC. METHODS: SNPs with a minor allele frequency of at least 10% were analyzed using direct DNA sequencing in two independent study populations. RESULTS: The minor allele of AREG rs1615111 was associated with a significantly higher 3-year recurrence rate and lower 3-year survival rate [hazard ratio (HR)=2.21 and 2.35, respectively] compared with patients homozygous for the dominant allele G. The value for overall survival could be validated with a HR of 2.54 (P=0.018) in an independent cohort. Patients homozygous for the minor allele A of EREG rs12641042 had a significantly higher 3-year survival rate than patients with allele C (HR 0.48; P=0.034), but significance was lost in multivariable analysis (P=0.066). The value of rs12641042 could not be validated (P=0.98). Exploratory multivariable subgroup analysis showed the strongest prognostic value for rs1615111 in tumors with a diffuse histology (Pfor interaction=0.004). CONCLUSION: AREG rs1615111, located in the AREG genomic region, can significantly define different prognostic cohorts in locally advanced GC. This value is most evident in GC patients with diffuse histology, which might be relevant as none of the trials testing epithelial growth factor receptor inhibitors has been enriched for diffuse histology or a molecularly defined population. FAU - Wakatsuki, Takeru AU - Wakatsuki T AD - aSharon Carpenter Laboratory, USC/Norris Comprehensive Cancer Center, Keck School of Medicine, Los Angeles, California bMemorial Sloan Kettering Cancer Center, New York, New York, USA cDepartment of Gastroenterology Center, Cancer Institute Hospital, Tokyo Departments of dGastroenterology eSurgery, School of Medicine, Kitasato University, Sagamihara, Japan fDepartment of Hematology and Oncology, University Hospital Grosshadern, University of Munich, Munich, Germany. FAU - Stintzing, Sebastian AU - Stintzing S FAU - Zhang, Wu AU - Zhang W FAU - Yang, Dongyun AU - Yang D FAU - Azuma, Mizutomo AU - Azuma M FAU - Ning, Yan AU - Ning Y FAU - Yamauchi, Shinichi AU - Yamauchi S FAU - Matsusaka, Satoshi AU - Matsusaka S FAU - Volz, Nico B AU - Volz NB FAU - Sunakawa, Yu AU - Sunakawa Y FAU - Koizumi, Wasaburo AU - Koizumi W FAU - Watanabe, Masahiko AU - Watanabe M FAU - Barzi, Afsaneh AU - Barzi A FAU - El Khoueiry, Anthony B AU - El Khoueiry AB FAU - Shah, Manish A AU - Shah MA FAU - Lenz, Heinz-Josef AU - Lenz HJ LA - eng GR - P30 CA014089/CA/NCI NIH HHS/United States GR - 5P30CA014089-27S1/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Pharmacogenet Genomics JT - Pharmacogenetics and genomics JID - 101231005 RN - 0 (AREG protein, human) RN - 0 (Amphiregulin) RN - 0 (Biomarkers, Tumor) RN - 0 (EGF Family of Proteins) RN - 0 (EREG protein, human) RN - 0 (Epiregulin) SB - IM MH - Aged MH - Amphiregulin MH - Biomarkers, Tumor/*metabolism MH - Cohort Studies MH - EGF Family of Proteins/*genetics MH - Epiregulin/*genetics MH - Female MH - Humans MH - Male MH - *Polymorphism, Single Nucleotide MH - Prognosis MH - Stomach Neoplasms/metabolism/*surgery PMC - PMC4190127 MID - NIHMS617440 COIS- Conflict of interest: The authors declare to have no conflict of interest. EDAT- 2014/09/10 06:00 MHDA- 2015/06/13 06:00 PMCR- 2015/11/01 CRDT- 2014/09/10 06:00 PHST- 2014/09/10 06:00 [entrez] PHST- 2014/09/10 06:00 [pubmed] PHST- 2015/06/13 06:00 [medline] PHST- 2015/11/01 00:00 [pmc-release] AID - 10.1097/FPC.0000000000000087 [doi] PST - ppublish SO - Pharmacogenet Genomics. 2014 Nov;24(11):539-47. doi: 10.1097/FPC.0000000000000087.