Decreased Egr-1 expression in human, mouse and rat mammary cells and tissues correlates with tumor formation

作者: Ruo-Pan Huang , Yan Fan , Ian De Belle , Christina Niemeyer , Marco M. Gottardis

DOI: 10.1002/(SICI)1097-0215(19970703)72:1<102::AID-IJC15>3.0.CO;2-L

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摘要: We have examined several types of tumor cell lines and shown that they invariably expressed little or no Egr-1, in contrast to their normal counterparts. previously the expression exogenous Egr-1 human breast other cells markedly reduces transformed growth tumorigenicity. therefore hypothesized loss plays a role transformation. All mouse cancer tumors had reduced compared with Reduced was also observed 7,12-dimethylbenz(a)anthracene (DMBA)-induced rat mammary tumors, this level increased levels regressed after tamoxifen treatment. concluded, therefore, may play deregulation tumorigenic process acts as suppressor gene.

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