Women's Health Weekly
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Breast Cancer
Research from N. Normanno and co-authors provides new data about breast cancer
November 20th, 2008
According to recent research from Naples, Italy, "Although the epidermal growth factor receptor (EGFR) is frequently expressed in human primary breast carcinoma, the majority of breast cancer patients do not respond to treatment with EGFR tyrosine-kinase inhibitors such as gefitinib. We isolated through a stepwise dose escalation of the drug two gefitinib-resistant SK-Br-3 clones, ZD6 and ZD10 (ZD) cells, which showed, respectively, a three- to five-fold increase in the IC50 for gefitinib as compared with parental cells." "The levels of expression of EGFR were increased in ZD cells as compared with wild-type SK-Br-3 cells. The phosphorylation of EGFR, ErbB-2, ErbB-3 and...
Source: Women's Health Weekly (2008-11-20)
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