Expression of EGFR and c-kit is associated with the basal-like phenotype in breast carcinomas of African women.
APMIS
; 116(6): 515-25, 2008 Jun.
Article
en En
| MEDLINE
| ID: mdl-18754326
ABSTRACT
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.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
/
Carcinoma Basocelular
/
Carcinoma Ductal de Mama
/
Adenocarcinoma Mucinoso
/
Proteínas Proto-Oncogénicas c-kit
/
Receptores ErbB
Tipo de estudio:
Observational_studies
/
Prognostic_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Middle aged
País/Región como asunto:
Africa
Idioma:
En
Revista:
APMIS
Asunto de la revista:
ALERGIA E IMUNOLOGIA
/
MICROBIOLOGIA
/
PATOLOGIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Noruega