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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1998-2-20
pubmed:abstractText
Dendritic cells (DC) are considered to be the most potent antigen-presenting cells (APC) in the immune system. In this study, we analyzed the regulation of apoptosis of human peripheral blood-derived DC. DC were generated from adherent peripheral blood mononuclear cells that had been cultured for 7 days with granulocyte-macrophage colony-stimulating factor and interleukin-4. These cells displayed phenotypic properties of DC, including dendritic processes, expression of CD1a and lack of expression of CD14, and were very potent at presenting soluble antigens to T cells. Blood-derived DC were demonstrated to express the Fas/CD95 antigen and an agonist antibody to CD95 strongly induced apoptotic cell death in these cells. Soluble trimeric CD40 ligand potently inhibited both CD95-mediated and spontaneous apoptosis in DC. The data suggest that interactions between members of the tumor necrosis factor family of ligands expressed by T cells with their receptors on DC play an important role in the regulation of apoptosis in DC during antigen presentation and may, therefore, regulate the duration of T cell expansion and cytokine production.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3161-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
CD40 ligand inhibits Fas/CD95-mediated apoptosis of human blood-derived dendritic cells.
pubmed:affiliation
Department of Microbiology, The University of Western Australia, Perth.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't