Burnett-Hartman Andrea N, Newcomb Polly A, Potter John D
Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, 1100 Fairview Avenue North, M4-B402, Seattle, WA 98109, USA.
Cancer Epidemiol Biomarkers Prev. 2008 Nov;17(11):2970-9. doi: 10.1158/1055-9965.EPI-08-0571.
Based on the high volume of bacteria and viruses that the intestine is exposed to and the importance of infectious agents in some gastrointestinal and anogenital cancers, it is not surprising the many studies have evaluated the association between colorectal cancer and infectious agents. This review highlights investigations of four agents in relation to colorectal cancer. Helicobacter pylori, Streptococcus bovis, JC virus, and human papillomavirus have all been evaluated as possible etiologic agents for colorectal cancer. For each of these agents, a review of possible mechanisms for carcinogenesis and epidemiologic evidence is discussed, and future directions for research are proposed.
鉴于肠道所接触的大量细菌和病毒,以及感染因子在某些胃肠道和肛门生殖器癌症中的重要性,许多研究评估结直肠癌与感染因子之间的关联也就不足为奇了。本综述重点介绍了与结直肠癌相关的四种因子的研究。幽门螺杆菌、牛链球菌、JC病毒和人乳头瘤病毒均已被评估为结直肠癌可能的病因。针对每种因子,本文讨论了可能的致癌机制及流行病学证据,并提出了未来的研究方向。