Women's Health Weekly
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Breast Cancer
Research from University of Tokyo provide new insights into breast cancer
October 2nd, 2008
"Excessive fat mass is a risk factor for postmenopausal breast cancer. Leptin, a fat cell-derived peptide hormone, elicits a growth-stimulating effect in breast cancer cells with leptin receptor expression, although the leptin-induced signal in malignant cells is not fully understood," scientists writing in the Journal of Surgical Research report. "Here, we found that exogenous leptin induced tyrosine phosphorylation of HER2 in SKBR3 cells, which showed marked overexpression of HER2. Phosphorylation of HER2 was detected at 2 min and continued up to 120 min after the start of stimulation. Leptin-induced HER2 phosphorylation was partially reduced by an epidermal...
Source: Women's Health Weekly (2008-10-02)
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