Basal cytokeratin expression in relation to biological factors in breast cancer.
Hum Pathol
; 39(12): 1744-50, 2008 Dec.
Article
en En
| MEDLINE
| ID: mdl-18755493
ABSTRACT
The objective of this study was to determine the predictive impact of several established tumor biological markers and clinicopathological findings for basal-like carcinoma. Expression was determined by immunohistochemistry using antibodies to cytokeratins 5/6, 14, and 17, and the cases were divided into basal-like carcinoma and non basal-like carcinoma. These subgroups were compared in terms of biological markers (HER2, estrogen receptor, progesterone receptor, Ki-67, P-53, and P-glycoprotein) and clinicopathological behavior. Of the 49 basal-like carcinoma cases, 25(51.0%) were P-53-positive, whereas 100 (35.9%) of the 278 non basal-like carcinoma cases were P-53-positive. A high ratio of nuclear Ki-67 expression was detected in 39 (79.6%) of 49 basal-like carcinoma cases and was significantly more common than in non basal-like carcinoma cases (81/278, 29.1%). P-glycoprotein expression was identified in 29 (59.2%) of 49 basal-like carcinomas but only 85 (30.6%) of 278 non basal-like carcinomas. We observed high levels of P-53, Ki-67, and P-glycoprotein, with the reduction or loss of estrogen receptor, progesterone receptor, and HER2 being more obvious, in basal-like carcinomas than in non basal-like carcinomas. Our findings provide further evidence that basal-like carcinoma has different mechanisms of histogenesis.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
/
Carcinoma Basocelular
/
Biomarcadores de Tumor
/
Carcinoma Ductal de Mama
/
Queratinas
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
Hum Pathol
Asunto de la revista:
PATOLOGIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Japón