Cancer Weekly
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Breast Cancer
Research from Georgetown University in the area of breast cancer published
December 23rd, 2008
"Overexpression and activation of the steroid receptor coactivator amplified in breast cancer 1 (AIB1)/steroid receptor coactivator-3 (SRC-3) have been shown to have a critical role in oncogenesis and are required for both steroid and growth factor signaling in epithelial tumors. Here, we report a new mechanism for activation of SRC coactivators," scientists writing in the journal Molecular and Cellular Biology report. "We demonstrate regulated tyrosine phosphorylation of AIB1/SRC-3 at a C-terminal tyrosine residue (Y1357) that is phosphorylated after insulin-like growth factor 1, epidermal growth factor, or estrogen treatment of breast cancer cells....
Source: Cancer Weekly (2008-12-23)
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