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Tamoxifen

Molecular changes associated with agonist activity of hydroxy-tamoxifen

Published in Cancer Weekly, May 24th, 2005

Molecular changes might be associated with the agonist activity of 4-hydroxy-tamoxifen (OH-Tam) and the hyper-response to estradiol (E-2) in breast cancer.

"The aim of this study was to explore the pharmacological response to OH-Tam and to E-2 in three cell lines: MVLN, a human breast carcinoma cell line derived from MCF-7, and two MVLN-derived OH-Tam-resistant (OTR) cell lines, called CL6.8 and CL6.32," scientists writing in the journal Endocrine-Related Cancer reported.

"The OH-Tam response in the OTR cells was associated with the development of both an agonist activity of the drug on cell proliferation and the resistance of the cells to...

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