Distinct mechanisms of loss of estrogen receptor alpha gene expression in human breast cancer: methylation of the gene and alteration of trans-acting factors

Abstract excerpt

We have previously shown that the distal promoter (promoter B) of the estrogen receptor alpha (ER alpha) gene is responsible for the enhanced expression of the ER alpha gene seen in human breast cancer and that a novel trans-acting factor, estrogen receptor promoter B associated factor 1 (ERBF-1), is required for transcription from promoter B in breast cancer cells. In development of breast cancer, loss of ER...

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