title: Analyses of tumor-suppressor genes in germline mouse models of cancer.
abstract: Tumor-suppressor genes are critical regulators of growth and functioning of cells, whose loss of function contributes to tumorigenesis. Accordingly, analyses of the consequences of their loss of function in genetically engineered mouse models have provided important insights into mechanisms of human cancer, as well as resources for preclinical analyses and biomarker discovery. Nowadays, most investigations of genetically engineered mouse models of tumor-suppressor function use conditional or inducible alleles, which enable analyses in specific cancer (tissue) types and overcome the consequences of embryonic lethality of germline loss of function of essential tumor-suppressor genes. However, historically, analyses of genetically engineered mouse models based on germline loss of function of tumor-suppressor genes were very important as these early studies established the principle that loss of function could be studied in mouse cancer models and also enabled analyses of these essential genes in an organismal context. Although the cancer phenotypes of these early germline models did not always recapitulate the expected phenotypes in human cancer, these models provided the essential foundation for the more sophisticated conditional and inducible models that are currently in use. Here, we describe these "first-generation" germline models of loss of function models, focusing on the important lessons learned from their analyses, which helped in the design and analyses of "next-generation" genetically engineered mouse models.
authors.affiliation: Departments of Urology and Pathology and Cell Biology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York 10032.
authors.forename: Jingqiang
authors.initials: J
authors.lastname: Wang
authors.affiliation: Departments of Urology and Pathology and Cell Biology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York 10032.
authors.forename: Cory
authors.initials: C
authors.lastname: Abate-Shen
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D005786:Gene Expression Regulation; D016147:Genes, Tumor Suppressor; D018095:Germ-Line Mutation; D049673:History, 20th Century; D049674:History, 21st Century; D051379:Mice; D009369:Neoplasms / Q000473:pathology*; D010336:Pathology / Q000266:history
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