Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2002-4-23
pubmed:abstractText
Active suppression by T regulatory cells plays an important role in the down-regulation of T cell responses to foreign and self-Ags. Thus far, the potential role of CD4(+)CD25(+) T cells in human tumors has not been reported. In this work we show that lung tumors contain large numbers of these cells and that they have constitutive high-level expression of CD152 (CTLA-4). Furthermore, the CD4(+)CD25(+) T cells mediate potent inhibition of autologous T cell proliferation. Finally, regulatory T cells from patient tumors failed to inhibit the proliferation of allogeneic T cells. Together these results suggest that the CD4(+)CD25(+) T cells found in lung tumors selectively inhibit the host immune response and therefore could contribute to the progression of lung cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
168
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4272-6
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Cutting edge: Regulatory T cells from lung cancer patients directly inhibit autologous T cell proliferation.
pubmed:affiliation
Department of Surgery, University of Pennsylvania Medical Center, Philadelphia, PA 19104, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't