Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-12-1
pubmed:abstractText
HP results from the repeated inhalation of environmental antigens; however, the roles of CD4(+)CD25(+) T(reg) cells in HP are unknown. Therefore, we investigated the functions of CD4(+)CD25(+) T(reg) cells in SR-induced murine HP. More severe HP was observed in CD4(+)CD25(+) T(reg) cell-depleted mice than in control mice in terms of histological alterations, inflammatory cell numbers in BALF, and the serum level of SR-specific IgG, which were restored by the adoptive transfer of CD4(+)CD25(+) T(reg) cells. The CD4(+)CD25(+) T(reg) cell-depleted mice also showed elevated levels of IFN-gamma, TGF-beta, and reduced IL-4 production in the lungs. Moreover, IL-10 production of CD4(+)CD25(+) T(reg) cells and direct contact between CD4(+)CD25(+) T(reg) cells and CD4(+) or CD8(+) T cells in BALF resulted in reduced IFN-gamma production. Taken together, CD4(+)CD25(+) T(reg) cells play a protective role in SR-induced HP by suppressing IFN-gamma production by T cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1938-3673
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1427-37
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
CD4(+)CD25(+) regulatory T cells attenuate Hypersensitivity Pneumonitis by suppressing IFN-gamma production by CD4(+) and CD8(+) T cells.
pubmed:affiliation
Department of Pathology, Laboratory of Immune Regulation in Department of Biomedical Sciences, and Tumor Immunity Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't