Paclitaxel induces release of cytochrome c from mitochondria isolated from human neuroblastoma cells'.
Cancer Res
; 60(19): 5349-53, 2000 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-11034069
ABSTRACT
Paclitaxel is an antimicrotubule agent that induces mitotic block and apoptosis. We show for the first time that paclitaxel acts directly or mitochondria isolated from human cancer cells. In isolated yeast mito chondria, paclitaxel (15 microM) induced an 18% increase in the respiration rate, with no concomitant release of cytochrome c. In isolated neuroblas toma mitochondria, paclitaxel (10-100 microM) induced a 27-72% release o cytochrome c. Release was prevented by cyclosporin A, suggesting the involvement of the permeability transition pore. Doxorubicin did no induce cytochrome c release, whereas vinorelbine, another antimicrotu bule agent, did. Thus, antimicrotubule agents can directly affect mito chondria to induce apoptosis.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vimblastina
/
Paclitaxel
/
Grupo dos Citocromos c
/
Mitocôndrias
/
Neuroblastoma
/
Antineoplásicos Fitogênicos
Limite:
Humans
Idioma:
En
Revista:
Cancer Res
Ano de publicação:
2000
Tipo de documento:
Article
País de afiliação:
França