HHV-8 reduces dendritic cell migration through down-regulation of cell-surface CCR6 and CCR7 and cytoskeleton reorganization

<p>Abstract</p> <p>Background</p> <p>For an efficient immune response against viral infection, dendritic cells (DCs) must express a coordinate repertoire of receptors that allow their recruitment to the sites of inflammation and subsequently to the secondary lymphoid or...

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Bibliographic Details
Main Authors: Cirone Mara, Conte Valeria, Farina Antonella, Valia Sandro, Trivedi Pankaj, Granato Marisa, Santarelli Roberta, Frati Luigi, Faggioni Alberto
Format: Article
Language:English
Published: BMC 2012-05-01
Series:Virology Journal
Subjects:
Online Access:http://www.virologyj.com/content/9/1/92
Description
Summary:<p>Abstract</p> <p>Background</p> <p>For an efficient immune response against viral infection, dendritic cells (DCs) must express a coordinate repertoire of receptors that allow their recruitment to the sites of inflammation and subsequently to the secondary lymphoid organs in response to chemokine gradients.</p> <p>Several pathogens are able to subvert the chemokine receptor expression and alter the migration properties of DCs as strategy to escape from the immune control.</p> <p>Findings</p> <p>Here we report the inhibitory effect of Human Herpesvirus 8 (HHV-8) on the migratory behavior of immature and mature DCs. We found that the virus altered the DC chemokine receptor expression and chemokine induced migration. Moreover HHV-8 was also able to interfere with basal motility of DCs by inducing cytoskeleton modifications.</p> <p>Conclusion</p> <p>Based on our findings, we suggest that HHV-8 is able to subvert the DC migration capacity and this represents an additional mechanism which interferes with their immune-functions.</p>
ISSN:1743-422X