Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2011-2-9
pubmed:abstractText
Transplantation tolerance induced by neonatal injection of semi-allogeneic spleen cells is associated with a pathological syndrome caused by T helper type 2 (Th2) differentiation of donor-specific CD4(+) T lymphocytes. We have shown previously that this Th2-biased response is inhibited by host CD8(+) T cells. Herein, we demonstrate that upon neonatal immunization with (A/J × BALB/c)F(1) spleen cells, BALB/c mice expand a population of CD8(+) T cells expressing both CD25 and forkhead box P3 (FoxP3) markers. In this setting, CD8(+) CD25(+) T cells predominantly produce interferon (IFN)-? and interleukin (IL)-10 and are efficient in controlling IL-4, IL-5 and IL-13 production by donor-specific CD4(+) T cells in vitro. CD8(+) FoxP3(-) T cells are single producers of IFN-? or IL-10, whereas CD8(+) FoxP3(+) T cells are double producers of IFN-? and IL-10. We further demonstrate that IFN-? and IL-10 are two major cytokines produced by CD8(+) T cells involved in the in vivo regulation of Th2-type pathology. In this setting, we conclude that neonatal alloimmunization induces the expansion of several regulatory CD8(+) T cells which may control Th2 activities via IFN-? and IL-10.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1365-2249
pubmed:author
pubmed:copyrightInfo
© 2010 The Authors. Clinical and Experimental Immunology © 2010 British Society for Immunology.
pubmed:issnType
Electronic
pubmed:volume
163
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
354-61
pubmed:meshHeading
pubmed-meshheading:21175595-Animals, pubmed-meshheading:21175595-Animals, Newborn, pubmed-meshheading:21175595-Antigens, CD, pubmed-meshheading:21175595-CD8-Positive T-Lymphocytes, pubmed-meshheading:21175595-Forkhead Transcription Factors, pubmed-meshheading:21175595-Gene Expression, pubmed-meshheading:21175595-Immune Tolerance, pubmed-meshheading:21175595-Immunization, pubmed-meshheading:21175595-Immunoglobulin E, pubmed-meshheading:21175595-Interferon-gamma, pubmed-meshheading:21175595-Interleukin-10, pubmed-meshheading:21175595-Interleukin-2 Receptor alpha Subunit, pubmed-meshheading:21175595-Lymph Nodes, pubmed-meshheading:21175595-Lymphocyte Culture Test, Mixed, pubmed-meshheading:21175595-Mice, pubmed-meshheading:21175595-Mice, Inbred A, pubmed-meshheading:21175595-Mice, Inbred BALB C, pubmed-meshheading:21175595-Mice, Inbred C57BL, pubmed-meshheading:21175595-Mice, Knockout, pubmed-meshheading:21175595-Spleen, pubmed-meshheading:21175595-Splenomegaly, pubmed-meshheading:21175595-T-Lymphocyte Subsets, pubmed-meshheading:21175595-T-Lymphocytes, pubmed-meshheading:21175595-Th2 Cells, pubmed-meshheading:21175595-Transplantation, Homologous, pubmed-meshheading:21175595-Transplantation Tolerance, pubmed-meshheading:21175595-beta 2-Microglobulin
pubmed:year
2011
pubmed:articleTitle
Expansion of regulatory CD8+ CD25+ T cells after neonatal alloimmunization.
pubmed:affiliation
Institut d'Immunologie Médicale, Université Libre de Bruxelles, Gosselies, Belgium.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't