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Oncogene. 2005 Oct 20;24(46):6890-901.

EN2 is a candidate oncogene in human breast cancer.

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1
Laboratory of Molecular Genetics of Hematopoietic Stem Cells, Institut de Recherche en Immunologie et Cancérologie, CP 6128, succursale Centre-Ville, Montréal, Québec, Canada H3C 3J7.

Abstract

Only a few critical oncogenes have been identified in the more commonly occurring cases of sporadic breast cancer. We provide evidence that EN2 is ectopically expressed in a subset of human breast cancer and may have a causal role in mammary tumorigenesis. Nontumorigenic mammary cell lines engineered to ectopically express En-2 have a marked reduction in their cycling time, lose cell contact inhibition, become sensitive to 17-AAG treatment, fail to differentiate when exposed to lactogenic hormones and induce mammary tumors when transplanted into cleared mammary glands of syngeneic hosts. RNA interference studies suggest that EN2 expression is required for the maintenance of the transformed phenotype of a human breast tumor cell line.

PMID:
16007149
DOI:
10.1038/sj.onc.1208840
[Indexed for MEDLINE]
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