Document Detail


Dendritic cells adhere to and transmigrate across lymphatic endothelium in response to IFN-α.
MedLine Citation:
PMID:  21061437     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Migration of DC into lymphatic vessels ferries antigenic cargo and pro-inflammatory stimuli into the draining LN. Given that tissues under the influence of viral infections produce type I IFN, it is conceivable that these cytokines enhance DC migration in order to facilitate an antiviral immune response. Cultured lymphatic endothelium monolayers pretreated with TNF-α were used to model this phenomenon under inflammatory conditions. DC differentiated in the presence of either IFN-α2b or IFN-α5 showed enhanced adhesion to cultured lymphatic endothelial cells. These pro-adhesive effects were mediated by DC, not the lymphatic endothelium, and correlated with increased DC transmigration across lymphatic endothelial cell monolayers. Transmigration was guided by chemokines acting on DC, and blocking experiments with mAb indicated a role for LFA-1. Furthermore, incubation of DC with IFN-α led to the appearance of active conformation epitopes on the CD11a integrin chains expressed by DC. Differentiation of mouse DC in the presence of IFN-α also increased DC migration from inflammed footpads toward popliteal LN. Collectively, these results indicate a role for type I IFN in directing DC toward LN under inflammatory conditions.
Authors:
Ana Rouzaut; Saray Garasa; Alvaro Teijeira; Iranzu González; Ivan Martinez-Forero; Natalia Suarez; Esther Larrea; Carlos Alfaro; Asís Palazón; Juan Dubrot; Sandra Hervás-Stubbs; Ignacio Melero
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-27
Journal Detail:
Title:  European journal of immunology     Volume:  40     ISSN:  1521-4141     ISO Abbreviation:  Eur. J. Immunol.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-09     Completed Date:  2010-12-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1273201     Medline TA:  Eur J Immunol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  3054-63     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Center for Applied Medical Research, School of Medicine, University of Navarra, Pamplona, Spain. arouzaut@unav.es
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MeSH Terms
Descriptor/Qualifier:
Animals
Antigens, CD11a / immunology
Cell Adhesion / drug effects,  immunology
Cell Differentiation / drug effects,  immunology
Cell Movement / drug effects,  immunology*
Coculture Techniques
Dendritic Cells / immunology*
Endothelium, Lymphatic / immunology*
Humans
Interferon-alpha / immunology*,  pharmacology
Lymphocyte Function-Associated Antigen-1 / immunology
Mice
Tumor Necrosis Factor-alpha / immunology,  pharmacology
Chemical
Reg. No./Substance:
0/Antigens, CD11a; 0/Interferon-alpha; 0/Lymphocyte Function-Associated Antigen-1; 0/Tumor Necrosis Factor-alpha; 0/interferon alpha5; 0/interferon-alpha 2

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