Linked Life Data

17056550

Source:http://linkedlifedata.com/resource/pubmed/id/17056550

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2006-10-23
pubmed:abstractText
In contrast to MHC molecules, which present peptides, the CD1 molecules have been discovered to present lipid Ags to T cells. CD1-restricted T lymphocytes have been recently associated with resistance to virus infection. The mechanisms underlying activation of CD1-restricted T cells in the course of virus infection are not defined. In this study, we wanted to investigate the interaction of HSV with the antiviral CD1 Ag presentation system in human dendritic cells (DC). In response to low titers of HSV, the surface expression of CD1b and CD1d on human DC was up-regulated. These phenotypic changes enhanced the capacity of infected DC to stimulate proliferation of CD1-restricted T lymphocytes. High titers of HSV, however, lead to strong down-regulation of all surface CD1 molecules. This modulation of surface expression was associated with intracellular accumulation, colocalization with viral proteins, and disruption of the CD1 recycling machinery. Finally, even at low titers HSV interfered with the capacity of infected DC to stimulate the release of important cytokines by CD1d-restricted NKT cells. Thus, we demonstrate both the existence of a CD1 pathway allowing human DC to react to viral infection, as well as its blockage by a human herpesvirus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
177
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6207-14
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
CD1 antigen presentation by human dendritic cells as a target for herpes simplex virus immune evasion.
pubmed:affiliation
Institute of Virology, Charité Medical School, Humboldt University Berlin, Schumannstrasse 20/21, D-10117 Berlin, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't