Increased tumor proliferation and genomic instability without decreased apoptosis in MMTV-ras mice deficient in p53.

Abstract excerpt

We have used an in vivo tumor model to evaluate the consequences of p53 tumor suppressor protein deficiency in a tissue-specific context. By breeding MMTV-ras transgenic mice, which are highly susceptible to the development of mammary and salivary tumors, with p53(-/-) mice, we generated three classes of animals which contained the MMTV-ras transgene but differed in their p53 functional status (ras/p53(+/+),...

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