Source:http://linkedlifedata.com/resource/pubmed/id/19741155
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2009-12-1
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
1938-3673
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
86
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1427-37
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pubmed:meshHeading |
pubmed-meshheading:19741155-Alveolitis, Extrinsic Allergic,
pubmed-meshheading:19741155-Animals,
pubmed-meshheading:19741155-CD8-Positive T-Lymphocytes,
pubmed-meshheading:19741155-Immunoglobulin G,
pubmed-meshheading:19741155-Interferon-gamma,
pubmed-meshheading:19741155-Interleukin-10,
pubmed-meshheading:19741155-Male,
pubmed-meshheading:19741155-Mice,
pubmed-meshheading:19741155-Mice, Knockout,
pubmed-meshheading:19741155-T-Lymphocytes, Regulatory,
pubmed-meshheading:19741155-Transforming Growth Factor beta
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pubmed:year |
2009
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pubmed:articleTitle |
CD4(+)CD25(+) regulatory T cells attenuate Hypersensitivity Pneumonitis by suppressing IFN-gamma production by CD4(+) and CD8(+) T cells.
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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.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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