| The Antimicrobial Peptide hLF1-11 Drives Monocyte-Dendritic Cell Differentiation toward Dendritic Cells That Promote Antifungal Responses and Enhance Th17 Polarization. | |
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MedLine Citation:
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PMID: 22261275 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The hLF1-11 peptide comprising the first 11 N-terminal residues of human lactoferrin exerts antimicrobial activity in vivo, enhances the inflammatory response of monocytes and directs monocyte-macrophage differentiation toward cells with enhanced antimicrobial properties. In this study, we investigated the effects of hLF1-11 on human monocyte-dendritic cell (DC) differentiation and subsequent T cell activation. Results revealed that - compared to control (peptide-incubated) DCs - hLF1-11-differentiated DCs displayed enhanced expression of HLA class II antigens and dectin-1, and increased phagocytosis of Candida albicans. In addition, hLF1-11-differentiated DCs produced enhanced amounts of reactive oxygen species, IL-6 and IL-10, but not IL-12p40 and TNF-α, upon stimulation with C. albicans. Moreover, 6-day-cultured hLF1-11-differentiated DCs and control (peptide-incubated) DCs that had been stimulated with a Th17-inducing mix of antigens (including C. albicans) for 24 h were cocultured with autologous CD4+ T cells for 72 h and then the levels of IL-10, IL-17 and IFN-γ production and the percentage of cytokine-producing T cells were assessed. The results revealed that the hLF1-11-differentiated DCs induced an enhanced IL-17, but reduced IFN-γ, production by T cells as compared to control (peptide-incubated) DCs. Collectively, the hLF1-11 peptide drives monocyte-DC differentiation toward DCs that promote antifungal responses and enhance Th17 polarization. |
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Authors:
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Anne M van der Does; Simone A Joosten; Evy Vroomans; Sylvia J P Bogaards; Krista E van Meijgaarden; Tom H M Ottenhoff; Jaap T van Dissel; Peter H Nibbering |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-10 |
Journal Detail:
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Title: Journal of innate immunity Volume: - ISSN: 1662-8128 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101469471 Medline TA: J Innate Immun Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 S. Karger AG, Basel. |
Affiliation:
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Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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