A validated gene expression profile for detecting clinical outcome in breast cancer using artificial neural networks.
Breast Cancer Res Treat
; 120(1): 83-93, 2010 Feb.
Article
en En
| MEDLINE
| ID: mdl-19347577
Gene expression microarrays allow for the high throughput analysis of huge numbers of gene transcripts and this technology has been widely applied to the molecular and biological classification of cancer patients and in predicting clinical outcome. A potential handicap of such data intensive molecular technologies is the translation to clinical application in routine practice. In using an artificial neural network bioinformatic approach, we have reduced a 70 gene signature to just 9 genes capable of accurately predicting distant metastases in the original dataset. Upon validation in a follow-up cohort, this signature was an independent predictor of metastases free and overall survival in the presence of the 70 gene signature and other factors. Interestingly, the ANN signature and CA9 expression also split the groups defined by the 70 gene signature into prognostically distinct groups. Subsequently, the presence of protein for the principal prognosticator gene was categorically assessed in breast cancer tissue of an experimental and independent validation patient cohort, using immunohistochemistry. Importantly our principal prognosticator, CA9, showed that it is capable of selecting an aggressive subgroup of patients who are known to have poor prognosis.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
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Biomarcadores de Tumor
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Redes Neurales de la Computación
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Perfilación de la Expresión Génica
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Metástasis de la Neoplasia
Tipo de estudio:
Diagnostic_studies
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Prognostic_studies
Límite:
Adult
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Aged
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
Breast Cancer Res Treat
Año:
2010
Tipo del documento:
Article
Pais de publicación:
Países Bajos