Expression of EGFR and c‐kit is associated with the basal‐like phenotype in breast carcinomas of African women
pmid: 18754326
Expression of EGFR and c‐kit is associated with the basal‐like phenotype in breast carcinomas of African women
Epidermal growth factor receptor (EGFR) and c‐kit are tyrosine kinase growth factor receptors which are frequently expressed in basal‐like breast carcinomas, and tyrosine kinase inhibition is now a promising strategy in treatment of breast cancer. The aim of this study was to evaluate the expression of EGFR and c‐kit in breast cancer with special focus on the basal‐like phenotype (BLP) and other prognostic factors in an African population. We analyzed 65 archival tissues immunohistologically. EGFR and/or c‐kit were expressed in 55% of basal‐like tumors. Expression of EGFR and/or c‐kit was strongly associated with high histologic grade (P=0.001), high nuclear grade (P=0.017), high mitotic counts (P=0.002), ER negativity (P=0.003), PR negativity (P=0.007), and HER2 negativity (P=0.014). EGFR and/or c‐kit positive tumors were more likely to express the BLP (OR 9.1, CI 2.6–32.0, P<0.0005) than the negative tumors. In conclusion, there is a high expression of EGFR and/or c‐kit in basal‐like breast carcinoma in this series from Uganda and their expression is associated with features of poor prognosis. More studies are required to assess the clinical significance of EGFR and c‐kit in breast cancer patients in Uganda.
- Makerere University Uganda
- Haukeland University Hospital Norway
- University of Bergen Norway
Adult, Aged, 80 and over, Carcinoma, Ductal, Breast, Breast Neoplasms, Middle Aged, Adenocarcinoma, Mucinous, ErbB Receptors, Proto-Oncogene Proteins c-kit, Phenotype, Carcinoma, Basal Cell, Humans, Female, Uganda, Aged, Retrospective Studies
Adult, Aged, 80 and over, Carcinoma, Ductal, Breast, Breast Neoplasms, Middle Aged, Adenocarcinoma, Mucinous, ErbB Receptors, Proto-Oncogene Proteins c-kit, Phenotype, Carcinoma, Basal Cell, Humans, Female, Uganda, Aged, Retrospective Studies
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