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Genetic control of susceptibility to spontaneous testicular germ cell tumors in mice

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Lam MYJ, Nadeau JH. Genetic control of susceptibility to spontaneous testicular germ cell tumors in mice. APMIS 2003;111:184–91

Testicular germ cell tumors (TGCTs) are the most common cancer affecting young men. TGCT is a polygenic trait and genes that control susceptibility for TGCT development have not yet been identified. The 129/Sv inbred strain of mice is an important experimental model to study the genetics and development of TGCTs. We review several novel approaches that were developed to study the susceptibility of TGCTs in the 129/Sv mouse model and its application in humans. These approaches showed that several spontaneous and engineered mutations interact with 129/Sv-derived susceptibility genes to enhance or suppress susceptibility; two of these mutations (Ter and Trp53) revealed novel linkages for susceptibility genes in sensitized polygenic trait analysis. Linkage analysis with a chromosome substitution strains suggests that as many as 100 genes control susceptibility. Bilateral TGCTs result from the coincidental occurrence of unilateral tumors. These results highlight the important contributions that this mouse model can make to studies of TGCT susceptibility in humans.
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Keywords: Testicular germ cell tumors; chromosome substitution strains; mice; sensitized polygenic trait analysis

Document Type: Research Article

Affiliations: 1: Department of Genetics, Case Western Reserve University School of Medicine, Cleveland, OH and 2: Center for Human Genetics and Ireland Cancer Center, University Hospitals of Cleveland Cleveland, OH

Publication date: 2003-01-01

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