First Author | Jones SN | Year | 1998 |
Journal | Proc Natl Acad Sci U S A | Volume | 95 |
Issue | 26 | Pages | 15608-12 |
PubMed ID | 9861017 | Mgi Jnum | J:51661 |
Mgi Id | MGI:1321428 | Doi | 10.1073/pnas.95.26.15608 |
Citation | Jones SN, et al. (1998) Overexpression of Mdm2 in mice reveals a p53-independent role for Mdm2 in tumorigenesis. Proc Natl Acad Sci U S A 95(26):15608-12 |
abstractText | The Mdm2 proto-oncogene is amplified to high copy numbers in human sarcomas and is overexpressed in a wide variety of other human cancers. Because Mdm2 protein forms a complex with the p53 tumor suppressor protein and down-regulates p53 function, the oncogenic potential of Mdm2 is presumed to be p53-dependent. To model these conditions in mice, we have used the entire Mdm2 gene, under transcriptional control of its native promoter region, as a transgene to create mice that overexpress Mdm2. The transgenic mice are predisposed to spontaneous tumor formation, and the incidence of sarcomas observed in the Mdm2- transgenic mice in the presence or absence of functional p53 demonstrates that, in addition to Mdm2-mediated inactivation of p53, there exists a p53-independent role for Mdm2 in tumorigenesis. |