Ursodeoxycholic acid can suppress deoxycholic acid-induced apoptosis by stimulating Akt/PKB-dependent survival signaling.
Nutr Cancer
; 51(1): 110-6, 2005.
Article
em En
| MEDLINE
| ID: mdl-15749637
ABSTRACT
The nontoxic bile acid ursodeoxycholic acid (UDCA) is reported to be an anti-apoptotic agent with efficacy against a variety of death stimuli including the cytotoxic bile acid deoxycholic acid (DCA). To gain insight into this anti-apoptotic property, we tested UDCA for its ability to protect the colon carcinoma-derived cell line HCT116 against DCA-induced apoptosis. We found that UDCA could suppress DCA-induced apoptosis in a time- and dose-dependent manner and that this effect correlated with Akt phosphorylation. Importantly, UDCA lost its ability to protect cells from DCA-induced cell death when Akt activity was suppressed genetically using a dominant negative Akt mutant or when PI3K activity was inhibited pharmacologically. These results suggest that UDCA can protect HCT116 cells against DCA-induced apoptosis by stimulating Akt-dependent survival signaling.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácido Ursodesoxicólico
/
Colagogos e Coleréticos
/
Proteínas Proto-Oncogênicas
/
Proteínas Serina-Treonina Quinases
/
Apoptose
Limite:
Humans
Idioma:
En
Revista:
Nutr Cancer
Ano de publicação:
2005
Tipo de documento:
Article