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Focal adhesion kinase (FAK) immunocytochemical expression in breast ductal invasive carcinoma (DIC): correlation with clinicopathological parameters and tumor proliferative capacity.
Theocharis, Stamatios E; Klijanienko, Jerzy T; Padoy, Elianne; Athanassiou, Stavros; Sastre-Garau, Xavier X.
Afiliação
  • Theocharis SE; Department of Tumor Biology, Section of Cytopathology, Institut Curie, Paris, France. theocharis@ath.forthnet.gr
Med Sci Monit ; 15(8): BR221-6, 2009 Aug.
Article em En | MEDLINE | ID: mdl-19644410
BACKGROUND: Focal adhesion kinase (FAK) is an enzyme of the tyrosine kinase group linked to signaling pathways between cells and the extracellular matrix. In tumor cells in vitro, FAK expression correlated with their ability for invasion and metastasis. Additionally, in vivo FAK has been implicated in malignant transformation and disease progression. The aim of the present study was to evaluate the clinical significance of FAK expression in breast ductal invasive carcinoma (DIC). MATERIAL/METHODS: Immunocytochemical techniques were used to assess FAK expression on cytological material obtained from 73 patients with breast DIC. FAK expression status (positivity, overexpression, and intensity of immunostaining) was compared with clinicopathological parameters and the tumor cells' proliferative capacity. RESULTS: Sixty-four of the 73 DIC cases (88%) were FAK positive and FAK protein overexpression was noted in 15 of the 73 (21%). In the DIC cases examined, FAK positivity correlated with tumor size (p=0.016) and FAK protein overexpression with tumor histological grade (p=0.034) and the tumor cells' proliferative capacity (p=0.003). The intensity of FAK protein staining did not significantly correlate with any of the examined clinicopathological parameters. CONCLUSIONS: In breast DIC it becomes evident that FAK protein positivity and overexpression correlate with important clinicopathological parameters. Further molecular and clinical studies are required to delineate the significance of FAK as a factor for better prognosis and management of breast cancer patients.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias da Mama / Regulação Neoplásica da Expressão Gênica / Carcinoma Ductal de Mama / Proteína-Tirosina Quinases de Adesão Focal Tipo de estudo: Prognostic_studies Limite: Adult / Aged / Aged80 / Female / Humans / Middle aged Idioma: En Revista: Med Sci Monit Assunto da revista: MEDICINA Ano de publicação: 2009 Tipo de documento: Article País de afiliação: França País de publicação: Estados Unidos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias da Mama / Regulação Neoplásica da Expressão Gênica / Carcinoma Ductal de Mama / Proteína-Tirosina Quinases de Adesão Focal Tipo de estudo: Prognostic_studies Limite: Adult / Aged / Aged80 / Female / Humans / Middle aged Idioma: En Revista: Med Sci Monit Assunto da revista: MEDICINA Ano de publicação: 2009 Tipo de documento: Article País de afiliação: França País de publicação: Estados Unidos