Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2001-11-27
pubmed:abstractText
Suppression by T regulatory (Tr) cells is essential for induction of tolerance. Many types of Tr cells have been described in a number of systems, and their biology has been the subject of intensive investigation. Although many aspects of the mechanisms by which these cells exert their effects remain to be elucidated, it is well established that Tr cells suppress immune responses via cell-to-cell interactions and/or the production of interleukin (IL)-10 and transforming growth factor (TGF)-beta. Type-1 T regulatory (Tr1) cells are defined by their ability to produce high levels of IL-10 and TGF-beta. Tr1 cells specific for a variety of antigens arise in vivo, but may also differentiate from naive CD4+ T cells in the presence of IL-10 in vitro. Tr1 cells have a low proliferative capacity, which can be overcome by IL-15. Tr1 cells suppress naive and memory T helper type 1 or 2 responses via production of IL-10 and TGF-beta. Further characterisation of Tr1 cells at the molecular level will define their mechanisms of action and clarify their relationship with other subsets of Tr cells. The use of Tr1 cells to identify novel targets for the development of new therapeutic agents, and as a cellular therapy to modulate peripheral tolerance, can be foreseen.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0105-2896
pubmed:author
pubmed:issnType
Print
pubmed:volume
182
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
68-79
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Type 1 T regulatory cells.
pubmed:affiliation
San Raffaele Telethon Institute of Gene Therapy (HSR-TIGET), San Raffaele Scientific Institute, Milan, Italy. m.roncarolo@hsr.it
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't