Bcl-2 oncogene expression in estrogen receptor-positive and negative breast carcinoma
Purpose: The aim of this study was to evaluate Bcl-2 oncogene expression in estrogen receptor (ER)-positive and negative breast carcinomas. Methods: A Study involving 72 cases of infiltrating ductal carcinoma of the breast in postmenopausal women divided into two groups: Group A (ER positive, n = 37...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Brasil |
| Institución: | Universidade Federal de São Paulo (UNIFESP) |
| Repositorio: | Repositório Institucional da UNIFESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unifesp.br:11600/43598 |
| Acceso en línea: | http://www.irog.net/download/?magazine=91 http://repositorio.unifesp.br/handle/11600/43598 |
| Access Level: | acceso abierto |
| Palabra clave: | breast cancer apoptosis estrogen receptor bcl-2 |
| Sumario: | Purpose: The aim of this study was to evaluate Bcl-2 oncogene expression in estrogen receptor (ER)-positive and negative breast carcinomas. Methods: A Study involving 72 cases of infiltrating ductal carcinoma of the breast in postmenopausal women divided into two groups: Group A (ER positive, n = 37) and Group B (ER negative, n = 35). Immunohistochemical analysis of bcl-2 expression was carried out semiquantitatively based on the percentage of stained tumoral cells and the intensity of staining. The chi-square test was used in the statistical analysis of the data and significance was established at p < 0.05. Results: Bcl-2 oncogene expression was statistically greater in tumors of Group A (59.5%) compared to those of Group B (8.6%), (p < 0.001). Conclusion: Bcl-2 had a significantly greater expression in the ER-positive breast tumors compared to ER-negative tumors. |
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