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Título: | Apoptosis in gallbladder carcinomas and dysplasias, its relation to the expression of caspases 3,6 and 8 and apoptosis regulating proteins bcl-2, mcl-l and bax |
Fecha de publicación: | 2000 |
Editorial: | Murcia : F. Hernández |
ISSN: | 0213-3911 |
Materias relacionadas: | CDU::6 - Ciencias aplicadas::61 - Medicina::616 - Patología. Medicina clínica. Oncología |
Palabras clave: | Gallbladder Carcinoma |
Resumen: | In this study we investigated apoptosis and the expression of caspases 3, 6 and 8 and bcl-2, mcl-l and bax in 39 gallbladder carcinomas and 7 epithelia1 dysplasias. The average apoptotic index was 0.68+0.91%. The extent of apoptosis was higher in grade 11-111 than grade I tumours or epithelial dysplasias (p=0.003). Also, tumours invading beyond serosa or into other organs (T3-T4) had a higher apoptotic index than other tumours (p=0.05). Caspase 3 expression was found in 37 (95%) and caspase 6 and 8 expression each in 30 (77%) carcinomas. Their expression associated with each other and tended to increase along with the progression of the lesions. Bcl-2 expression was found in only 4 (10%) tumours. In contrast, mcl-l positivity was found in 34 (87%) and bax positivity in all cases. The results show that apoptosis is increased along with progression of the neoplastic lesion of the gallbladder epithelium. Caspases 3,6 and 8 are strongly expressed in gallbladder carcinomas suggesting that they contribute to the increased apoptosis observed in them. Of the bcl-2 family proteins, bcl-2 was expressed infrequently suggesting that it does not play any significant role in apoptosis inhibition in gallbladder tumours. |
Autor/es principal/es: | Turunen, N. Paakko, P. Solni, Y. |
Forma parte de: | Histology and histopathology |
URI: | http://hdl.handle.net/10201/19283 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 8 |
Derechos: | info:eu-repo/semantics/openAccess |
Aparece en las colecciones: | Vol.15, nº 1 (2000) |
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Fichero | Descripción | Tamaño | Formato | |
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Apoptosis in gallbladder carcinomas and dysplasias its relation to the expression of caspases 36 and 8 and.pdf | 5,2 MB | Adobe PDF | Visualizar/Abrir |
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