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Breast Cancer

Research from W. Zwart et al has provided new information about breast cancer

Published in Women's Health Weekly, October 29th, 2009

"Resistance to tamoxifen treatment occurs in approximately 50% of the estrogen receptor ( ER)alpha-positive breast cancer patients. Resistant patients would benefit from treatment with other available antiestrogens," scientists in Netherlands report.

"Arzoxifene is an effective growth inhibitor of ER alpha-positive breast cancer cells, including tamoxifen-resistant tumors. In this study, we show that overexpression of a regular component of the ER alpha transcription factor complex, cyclin D1, which occurs in approximately 40% of breast cancer patients, renders cells resistant to the new promising antiestrogen, arzoxifene. Overexpression of cyclin D1 alters the...

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