Increased Expression of Focal Adhesion Kinase in Thyroid Cancer: Immunohistochemical Study
Journal of Korean Medical Science
; : 710-715, 2004.
Article
em En
| WPRIM
| ID: wpr-123124
Biblioteca responsável:
WPRO
ABSTRACT
Focal adhesion kinase (FAK) is a tyrosine kinase that is found in cellular structures called focal adhesions. FAK appears to be a key element in signal transduction pathways involved in cell adhesion and locomotion. FAK is overexpressed in various tumors, including tumors derived from regions of the head and neck, colon, breast, prostate, and liver. In this study, we investigated immunohistochemically whether FAK expression was increased in thyroid cancers. FAK staining was not seen in any of the 20 normal thyroid tissues or the 6 nodular hyperplasia specimens. In contrast, FAK staining was observed in all of 17 papillary carcinomas, 9 follicular carcinomas, 8 medullary carcinomas, and 2 anaplastic carcinomas. Nine of 17 follicular adenomas showed FAK immunoreactivity. FAK was not expressed in normal tissue and nodular hyperplasia, but was expressed in some of the follicular adenoma, and all of the follicular, papillary, medullary and anaplastic thyroid carcinoma. This result indicates that the up-regulation of FAK may play a role in the development of thyroid carcinogenesis.
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Texto completo:
1
Índice:
WPRIM
Assunto principal:
Proteínas Tirosina Quinases
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Neoplasias da Glândula Tireoide
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Imuno-Histoquímica
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Carcinoma Papilar
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Biomarcadores Tumorais
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Adenoma
Limite:
Adult
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Aged
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Female
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Humans
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Male
Idioma:
En
Revista:
Journal of Korean Medical Science
Ano de publicação:
2004
Tipo de documento:
Article