Tumour suppressor gene mutations in humans and mice: parallels and contrasts

Tumour suppressor genes prevent cancer development. They can be identified by studying humans, but a full understanding of the mechanisms of their act ion requires the production of animal models. Mice with mutations in tumour suppressor genes can be produced by gene targeting. The phenotypic consequ ences of tumour suppressor gene mutations in mice and humans show parallels and contrasts, and both can contribute to the elucidation of disease proce sses.