Calpains are Involved in Entamoeba histolytica-Induced Death of HT-29 Colonic Epithelial Cells
The Korean Journal of Parasitology
; : 177-180, 2011.
Article
em En
| WPRIM
| ID: wpr-47943
Biblioteca responsável:
WPRO
ABSTRACT
Entamoeba histolytica is an enteric tissue-invading protozoan parasite that can cause amebic colitis and liver abscess in humans. E. histolytica has the capability to kill colon epithelial cells in vitro; however, information regarding the role of calpain in colon cell death induced by ameba is limited. In this study, we investigated whether calpains are involved in the E. histolytica-induced cell death of HT-29 colonic epithelial cells. When HT-29 cells were co-incubated with E. histolytica, the propidium iodide stained dead cells markedly increased compared to that in HT-29 cells incubated with medium alone. This pro-death effect induced by ameba was effectively blocked by pretreatment of HT-29 cells with the calpain inhibitor, calpeptin. Moreover, knockdown of m- and micro-calpain by siRNA significantly reduced E. histolytica-induced HT-29 cell death. These results suggest that m- and micro-calpain may be involved in colon epithelial cell death induced by E. histolytica.
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Texto completo:
1
Índice:
WPRIM
Assunto principal:
Calpaína
/
Linhagem Celular
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Sobrevivência Celular
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Morte Celular
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Dipeptídeos
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Entamoeba histolytica
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Células Epiteliais
/
Técnicas de Silenciamento de Genes
Limite:
Humans
Idioma:
En
Revista:
The Korean Journal of Parasitology
Ano de publicação:
2011
Tipo de documento:
Article