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Biallelic inactivation of the APC gene is associated with hepatocellular carcinoma in familial adenomatous polyposis coli
Author(s) -
Su LiKuo,
Abdalla Eddie K.,
Law Calvin H. L.,
Kohlmann Wendy,
Rashid Asif,
Vauthey JeanNicolas
Publication year - 2001
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(20010715)92:2<332::aid-cncr1327>3.0.co;2-3
Subject(s) - familial adenomatous polyposis , adenomatous polyposis coli , germline mutation , gene , cancer research , medicine , germline , mutation , hepatocellular carcinoma , somatic cell , genetics , biology , cancer , colorectal cancer
Abstract BACKGROUND Certain primary hepatic tumors have been associated with familial adenomatous polyposis (FAP), a condition caused by germline mutations of the adenomatous polyposis coli ( APC ) gene. However, a genetic association between FAP and hepatocellular carcinoma (HCC) has not been shown. This study tested the hypothesis that biallelic inactivation of the APC gene contributed to the development of HCC in a patient with FAP and a known germline mutation of the APC gene at codon 208, but no other risk factors for HCC. METHODS Total RNA and genomic DNA were isolated from the tumor, and in vitro synthesized protein assay and DNA sequencing analysis were used to screen for a somatic mutation in the APC gene. RESULTS A somatic one–base pair deletion at codon 568 was identified in the wild‐type allele of the APC gene. CONCLUSIONS To the authors' knowledge, this study provides the first evidence that biallelic inactivation of the APC gene may contribute to the development of HCC in patients with FAP. Cancer 2001;92:332–9. © 2001 American Cancer Society.