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J Pathol. 2002 Jun;197(2):143-7.

Oestrogen receptor beta in breast cancer: good, bad or still too early to tell?

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Molecular Medicine Unit, University of Leeds, Clinical Sciences Building, St James's University Hospital, Leeds LS9 7TF, UK.


Two oestrogen receptors (ERs), ER alpha and ER beta, have been identified. ER alpha is by far the better characterized and is an established predictive marker in breast cancer which influences decisions on whether or not to give adjuvant anti-oestrogens, such as tamoxifen. In contrast, the function of ER beta in breast pathobiology is unclear, partly because most studies have focused on its mRNA rather than the protein. In this review, the significance of ER beta in the human breast is reviewed with respect to recent literature and its possible implications are discussed.

[Indexed for MEDLINE]

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