Allicin inhibits spontaneous and TNF-alpha induced secretion of proinflammatory cytokines and chemokines from intestinal epithelial cells.
Clin Nutr
; 23(5): 1199-208, 2004 Oct.
Article
em En
| MEDLINE
| ID: mdl-15380914
ABSTRACT
BACKGROUND & AIMS:
Allicin, the active substance of fresh crushed garlic has different biological activities and was implicated as an anti-inflammatory agent. Epithelial cells have an important role in intestinal inflammation. The aim of this study was to assess the immunomodulatory effect of allicin on intestinal epithelial cells.METHODS:
The spontaneous and TNF-alpha-stimulated secretion of IL-1beta, IL-8, IP-10 and MIG from HT-29 and Caco-2 cells was tested with, or without pretreatment with allicin. Cytokine secretion was assessed using ELISA and expression of mRNA was determined by an RNA protection assay.RESULTS:
Allicin markedly inhibited the spontaneous and TNF-alpha -induced secretion of IL-1beta, IL-8, IP-10 and MIG from the two different cell lines in a dose-dependent manner and suppressed the expression of IL-8 and IL-1beta mRNA levels. In addition, allicin suppressed the degradation of IkappaB. No effect on cell viability was noted.CONCLUSIONS:
These observations indicate that allicin exerts an inhibitory immunomodulatory effect on intestinal epithelial cells and suggest that allicin may have the potential to attenuate intestinal inflammation.
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Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Ácidos Sulfínicos
/
Interleucina-8
/
Interleucina-1
/
Fator de Necrose Tumoral alfa
/
Quimiocina CXCL10
/
Imunossupressores
/
Anti-Infecciosos
Limite:
Humans
Idioma:
En
Revista:
Clin Nutr
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Israel