PMID- 17468756 OWN - NLM STAT- MEDLINE DCOM- 20070814 LR - 20220321 IS - 1061-4036 (Print) IS - 1061-4036 (Linking) VI - 39 IP - 6 DP - 2007 Jun TI - MMTV insertional mutagenesis identifies genes, gene families and pathways involved in mammary cancer. PG - 759-69 AB - We performed a high-throughput retroviral insertional mutagenesis screen in mouse mammary tumor virus (MMTV)-induced mammary tumors and identified 33 common insertion sites, of which 17 genes were previously not known to be associated with mammary cancer and 13 had not previously been linked to cancer in general. Although members of the Wnt and fibroblast growth factors (Fgf) families were frequently tagged, our exhaustive screening for MMTV insertion sites uncovered a new repertoire of candidate breast cancer oncogenes. We validated one of these genes, Rspo3, as an oncogene by overexpression in a p53-deficient mammary epithelial cell line. The human orthologs of the candidate oncogenes were frequently deregulated in human breast cancers and associated with several tumor parameters. Computational analysis of all MMTV-tagged genes uncovered specific gene families not previously associated with cancer and showed a significant overrepresentation of protein domains and signaling pathways mainly associated with development and growth factor signaling. Comparison of all tagged genes in MMTV and Moloney murine leukemia virus-induced malignancies showed that both viruses target mostly different genes that act predominantly in distinct pathways. FAU - Theodorou, Vassiliki AU - Theodorou V AD - Division of Molecular Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands. FAU - Kimm, Melanie A AU - Kimm MA FAU - Boer, Mandy AU - Boer M FAU - Wessels, Lodewyk AU - Wessels L FAU - Theelen, Wendy AU - Theelen W FAU - Jonkers, Jos AU - Jonkers J FAU - Hilkens, John AU - Hilkens J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070429 PL - United States TA - Nat Genet JT - Nature genetics JID - 9216904 RN - 0 (RNA, Messenger) RN - 0 (Tumor Suppressor Protein p53) SB - IM MH - Animals MH - Cell Transformation, Neoplastic MH - Epithelium/metabolism MH - Female MH - Gene Expression MH - Gene Expression Regulation, Neoplastic MH - Genes, Neoplasm/*genetics MH - Mammary Neoplasms, Experimental/*genetics/*metabolism/pathology MH - Mammary Tumor Virus, Mouse/*genetics MH - Mice MH - Mice, Inbred BALB C MH - Multigene Family/*genetics MH - Mutagenesis, Insertional/*genetics MH - Oncogenic Viruses/genetics MH - RNA, Messenger/metabolism MH - *Signal Transduction MH - Tumor Suppressor Protein p53/genetics/metabolism MH - Virus Integration EDAT- 2007/05/01 09:00 MHDA- 2007/08/19 09:00 CRDT- 2007/05/01 09:00 PHST- 2006/07/07 00:00 [received] PHST- 2007/03/29 00:00 [accepted] PHST- 2007/05/01 09:00 [pubmed] PHST- 2007/08/19 09:00 [medline] PHST- 2007/05/01 09:00 [entrez] AID - ng2034 [pii] AID - 10.1038/ng2034 [doi] PST - ppublish SO - Nat Genet. 2007 Jun;39(6):759-69. doi: 10.1038/ng2034. Epub 2007 Apr 29.