| Ascaris lumbricoides pseudocoelomic body fluid induces a partially activated dendritic cell phenotype with Th2 promoting ability in vivo. | |
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MedLine Citation:
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PMID: 20974144 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Dendritic cells (DCs) matured with helminth-derived molecules that promote Th2 immune responses do not follow conventional definitions of DC maturation processes. While a number of models of DC maturation by Th2 stimuli are postulated, further studies are required if we are to clearly define DC maturation processes that lead to Th2 immune responses. In this study, we examine the interaction of Th2-inducing molecules from the parasitic helminth Ascaris lumbricoides with the maturation processes and function of DCs. Here we show that murine bone marrow-derived DCs are partially matured by A. lumbricoides pseudocoelomic body fluid (ABF) as characterised by the production of IL-6, IL-12p40 and macrophage inflammatory protein 2 (MIP-2) but no enhanced expression of cluster of differentiation (CD)-14, T-cell co-stimulatory markers CD80, CD86, CD40, OX40L and major histocompatibility complex class II was observed. Despite these phenotypic characteristics, ABF-stimulated DCs displayed the functional hallmarks of fully matured cells, enhancing DC phagocytosis and promoting Th2-type responses in skin-draining lymph node cells in vivo. ABF activated Th2-associated extracellular signal-regulated kinase-1 and nuclear factor-kB intracellular signalling pathways independently of toll-like receptor 4. Taken together, we believe this is the first paper to demonstrate A. lumbricoides murine DC-Th cell-driven responses shedding further light on DC maturation processes by helminth antigens. |
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Authors:
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David J Dowling; Cariosa M Noone; Paul N Adams; Krisztina V Vukman; Sile F Molloy; Jessica Forde; Samuel Asaolu; Sandra M O'Neill |
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Publication Detail:
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Type: Journal Article Date: 2010-10-23 |
Journal Detail:
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Title: International journal for parasitology Volume: 41 ISSN: 1879-0135 ISO Abbreviation: Int. J. Parasitol. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0314024 Medline TA: Int J Parasitol Country: England |
Other Details:
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Languages: eng Pagination: 255-61 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
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Parasite Immune Modulation Group, School of Nursing, Faculty of Science and Health, Dublin City University, Glasnevin, Dublin 9, Ireland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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