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The SV40 small t-antigen prevents mammary gland differentiation and induces breast cancer formation in transgenic mice; truncated large T-antigen molecules harboring the intact p53 and pRb binding region do not have this effect
We report here for the first time, that the SV40 small t-antigen inhibits mammary gland differentiation during mid-pregnancy and that about 10% of multiparous WAP-SVt transgenic animals develop breast tumors w...