期刊
WORLD JOURNAL OF GASTROENTEROLOGY
卷 15, 期 27, 页码 3329-3340出版社
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.15.3329
关键词
Bile acids; Cancer; Adenocarcinoma; Esophagus; Stomach; Small intestine; Pancreas; Colon; Apoptosis; DNA damage
资金
- NCI NIH HHS [R21CA111513-01A1, R01 CA119087, P50 CA095060, 5 R01 CA119087, R21 CA111513, 1 P50CA95060] Funding Source: Medline
Bile acids are implicated as etiologic agents in cancer of the gastrointestinal (GI) tract, including cancer of the esophagus, stomach, small intestine, liver, biliary tract, pancreas and colon/rectum. Deleterious effects of bile acid exposure, likely related to carcinogenesis, include: induction of reactive oxygen and reactive nitrogen species; induction of DNA damage; stimulation of mutation; induction of apoptosis in the short term, and selection for apoptosis resistance in the long term. These deleterious effects have, so far, been reported most consistently in relation to esophageal and colorectal cancer, but also to some extent in relation to cancer of other organs. In addition, evidence is reviewed for an association of increased bile acid exposure with cancer risk in human populations, in specific human genetic conditions, and in animal experiments. A model for the role of bile acids in GI carcinogenesis is presented from a Darwinian perspective that offers an explanation for how the observed effects of bile acids on cells contribute to cancer development. (C) 2009 The WJG Press and Baishideng. All rights reserved.
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