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Biochem Biophys Res Commun. 2008 Sep 26;374(3):431-6. doi: 10.1016/j.bbrc.2008.07.051. Epub 2008 Jul 17.

Curcumin prevents human dendritic cell response to immune stimulants.

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  • 1Department of Molecular Medicine, College of Medicine, University of South Florida, Tampa, FL 33612, USA.

Abstract

Curcumin, a compound found in the Indian spice turmeric, has anti-inflammatory and immunomodulatory properties, though the mechanism remains unclear. Dendritic cells (DCs) are important to generating an immune response and the effect of curcumin on human DCs has not been explored. The role curcumin in the DC response to bacterial and viral infection was investigated in vitro using LPS and Poly I:C as models of infection. CD14(+) monocytes, isolated from human peripheral blood, were cultured in GM-CSF- and IL-4-supplemented medium to generate immature DCs. Cultures were incubated with curcumin, stimulated with LPS or Poly I:C and functional assays were performed. Curcumin prevents DCs from responding to immunostimulants and inducing CD4(+) T cell proliferation by blocking maturation marker, cytokine and chemokine expression and reducing both migration and endocytosis. These data suggest a therapeutic role for curcumin as an immune suppressant.

PMID:
18639521
[PubMed - indexed for MEDLINE]
PMCID:
PMC3319308
Free PMC Article
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