Linked Life Data

12485452

Source:http://linkedlifedata.com/resource/pubmed/id/12485452

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2002-12-17
pubmed:abstractText
Cellular immune responses are initiated by direct interaction of naive T cells with professional antigen-presenting cells, i.e., dendritic cells. In general, this interaction takes place in secondary lymphoid organs to which both naive T cells and mature dendritic cells preferentially home. This physiologic scenario differs substantially, however, from therapeutic dendritic-cell-based vaccinations used to treat human cancer. In fact, only a small fraction of intradermally injected dendritic cells migrate to the draining lymph node and the majority of cells remain at the site of inoculation. These sites are characterized by a distinct oligoclonal T cell infiltrate comprising both L-Selectin+/CD45RA+ and L-Selectin+/CD45RA- cells. Blood vessels expressing peripheral lymph node addressin represent possible entry channels for such naive and central memory T cells, the former probably attracted by dendritic cell-CK1 produced by the injected dendritic cells. In situ staining with multimeric peptide/major histocompatibility complex class I complexes revealed that infiltrating T cells specifically recognize peptide epitopes presented by the injected dendritic cells. Thus, the fraction of dendritic cells not migrating to secondary lymphatic tissue after therapeutic inoculation nevertheless seem to be involved in a specific immune modulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-202X
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1443-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Aggregation of antigen-specific T cells at the inoculation site of mature dendritic cells.
pubmed:affiliation
Department of Dermatology, Julius Maximilians University, Würzburg, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't