期刊
DISEASE MODELS & MECHANISMS
卷 7, 期 11, 页码 1215-1225出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/dmm.016980
关键词
APC; Allelic series; Animal models; Colorectal cancer
资金
- National Cancer Institute [R01 CA63677, R01 CA125591]
- American Cancer Society Post-Doctoral Training Grant [PF-08-077-01-MGO]
- National Institute of Environmental Health Sciences Pre-Doctoral Training Grant [T32ES007015-033]
- Ministry of Health, Labour and Welfare [21300153]
- Japan Society for the Promotion of Science [0233639]
- Grants-in-Aid for Scientific Research [21300153] Funding Source: KAKEN
Prior to the advent of genetic engineering in the mouse, the rat was the model of choice for investigating the etiology of cancer. Now, recent advances in the manipulation of the rat genome, combined with a growing recognition of the physiological differences between mice and rats, have reignited interest in the rat as a model of human cancer. Two recently developed rat models, the polyposis in the rat colon (Pirc) and Kyoto Apc Delta (KAD) strains, each carry mutations in the intestinal-cancer-associated adenomatous polyposis coli (Apc) gene. In contrast to mouse models carrying Apc mutations, in which cancers develop mainly in the small intestine rather than in the colon and there is no gender bias, these rat models exhibit colonic predisposition and gender-specific susceptibility, as seen in human colon cancer. The rat also provides other experimental resources as a model organism that are not provided by the mouse: the structure of its chromosomes facilitates the analysis of genomic events, the size of its colon permits longitudinal analysis of tumor growth, and the size of biological samples from the animal facilitates multiplexed molecular analyses of the tumor and its host. Thus, the underlying biology and experimental resources of these rat models provide important avenues for investigation. We anticipate that advances in disease modeling in the rat will synergize with resources that are being developed in the mouse to provide a deeper understanding of human colon cancer.
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