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- W2000900780 abstract "Hepatocellular carcinoma (HCC) is one of the most prevalent human cancers, especially in Asia, and regions of endemic hepatitis infection. The primary risk factors for HCC are chronic hepatitis infection by hepatitis C (HCV) or hepatitis B (HBV). We performed whole exome sequencing on 549 matched tumor and normal samples from three centers (BCM HGSC, RCAST, NCC) to identify somatic changes in protein coding regions and changes in copy number. Here we describe variants associated with specific viral etiologies in HCC. We found TP53, CTNNB1, ARID1A, ARID2, and AXIN1 to be among the most frequently mutated genes in the entire dataset, implicating DNA damage, WNT signaling, and chromatin remodeling as recurrently altered pathways in HCC. Our validation rate for mutations in significantly mutated genes was over 95%. We identified 18 genes which differed significantly (p Our findings indicate that WNT/beta-catenin signaling is a frequently altered pathway in HCC. While aberrations in this pathway were present in all viral etiologies, HBV-associated HCC tended to mutate AXIN1 while HCV-associated HCC tended to have AXIN1 deletion. These differences may result from virus-specific oncogenic processes. Citation Format: Kyle R. Covington, Lawrence A. Donehower, Chad Creighton, Betty L. Slagle, John A. Goss, Ronald T. Cotton, Marie-Claude Gingras, Eve Shinbrot, Jacfranz J. Guiteau, Thao N. Nguyen, Theresa R. Harring, Donna M. Muzny, Kimberly Walker, HarshaVardhan Doddapaneni, Richard A. Gibbs, Hiroyuki Aburatani, Tatsuhiro Shibata, David A. Wheeler, Japan ICGC HCC Project. Viral subtypes in hepatocellular carcinoma are associated with different mechanisms of WNT/CTNNB1 alteration. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2211. doi:10.1158/1538-7445.AM2014-2211" @default.
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- W2000900780 date "2014-09-30" @default.
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- W2000900780 title "Abstract 2211: Viral subtypes in hepatocellular carcinoma are associated with different mechanisms of WNT/CTNNB1 alteration" @default.
- W2000900780 doi "https://doi.org/10.1158/1538-7445.am2014-2211" @default.
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