Relación entre la amplificación del oncogén C-erbB-2 y parámetros histológicos con sobrevida libre de enfermedad en pacientes con cáncer de mama / Relationship of oncogene CerbB2 amplification in breast cancer with pathological parameters and disease free survival
Rev. méd. Chile
;
133(2): 151-157, feb. 2005. tab
Artículo
en Español
| LILACS
| ID: lil-398046
ABSTRACT
Background:
Protooncogene cerbB2 is located in chromosome 17 region q21 and codifies a 185 Kd protein, with tyrosine kinase activity. The amplification of this gene is associated with relapse and lower survival in breast cancer. Overexpression of this gene can be detected by immunohistochemistry (IHC). However, fluorescence in situ hybridization (FISH) and chromogenic in situ hybridization (CISH) allow the simultaneous analysis of morphology and overexpression of the gene.Aim:
To evaluate the relationship of c-erbB2 oncogene amplification measured by FISH with histological graduation, presence of positive Iymph nodes and evolution of breast cancer. Patients andmethods:
One hundred and ten tissue samples of invasive ductal or lobulillar breast cancer, positive for cerbB2 oncogene by IHC were analysed. The presence of c-erbB2 oncogene amplification was subsequently analyzed by FISH.Results:
There was a significant association of c-erbB2 amplification by FISH with pathological graduation of the tumor, number of regional Iymph nodes involved and disease free survival.Conclusions:
Proto-oncogene cerbB2 amplification is a good indicator of bad prognosis in invasive breast cancer.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Neoplasias de la Mama
/
Amplificación de Genes
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Femenino
/
Humanos
País/Región como asunto:
America del Sur
/
Chile
Idioma:
Español
Revista:
Rev. méd. Chile
Asunto de la revista:
Medicina
Año:
2005
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Venezuela
Institución/País de afiliación:
Hospital Clínico/VE
/
Universidad del Zulia/VE
Similares
MEDLINE
...
LILACS
LIS