Source:http://linkedlifedata.com/resource/pubmed/id/17548647
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rdf:type | |
lifeskim:mentions |
umls-concept:C0021368,
umls-concept:C0026809,
umls-concept:C0034067,
umls-concept:C0039194,
umls-concept:C0085358,
umls-concept:C0677453,
umls-concept:C1261381,
umls-concept:C1332717,
umls-concept:C1413244,
umls-concept:C1514873,
umls-concept:C1546857,
umls-concept:C1556066,
umls-concept:C1619636,
umls-concept:C1706438,
umls-concept:C2698600
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pubmed:issue |
12
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pubmed:dateCreated |
2007-6-5
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pubmed:abstractText |
Increased numbers of T lymphocytes are observed in the lungs of patients with chronic obstructive pulmonary disease, but their role in the disease process is not known. We investigated the role of CD8+ T cells in inflammatory cell recruitment and lung destruction in a cigarette smoke-induced murine model of emphysema. In contrast to wild-type C57BL/6J mice that displayed macrophage, lymphocyte, and neutrophil recruitment to the lung followed by emphysema in response to cigarette smoke, CD8+ T cell-deficient (CD8-/-) mice had a blunted inflammatory response and did not develop emphysema when exposed to long-term cigarette smoke. Further studies supported a pathogenetic pathway whereby the CD8+ T cell product, IFN-gamma-inducible protein-10, induces production of macrophage elastase (matrix metalloproteinase 12) that degrades elastin, both causing lung destruction directly and generating elastin fragments that serve as monocyte chemokines augmenting macrophage-mediated lung destruction. These studies demonstrate a requirement for CD8+ T cells for the development of cigarette smoke-induced emphysema and they provide a unifying pathway whereby CD8+ T cells are a central regulator of the inflammatory network in chronic obstructive pulmonary disease.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
178
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
8090-6
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pubmed:meshHeading |
pubmed-meshheading:17548647-Animals,
pubmed-meshheading:17548647-CD4-Positive T-Lymphocytes,
pubmed-meshheading:17548647-CD8-Positive T-Lymphocytes,
pubmed-meshheading:17548647-Chemotaxis, Leukocyte,
pubmed-meshheading:17548647-Disease Models, Animal,
pubmed-meshheading:17548647-Elastin,
pubmed-meshheading:17548647-Lung,
pubmed-meshheading:17548647-Matrix Metalloproteinase 12,
pubmed-meshheading:17548647-Mice,
pubmed-meshheading:17548647-Mice, Inbred Strains,
pubmed-meshheading:17548647-Monocytes,
pubmed-meshheading:17548647-Pneumonia,
pubmed-meshheading:17548647-Pulmonary Emphysema,
pubmed-meshheading:17548647-Smoke,
pubmed-meshheading:17548647-Tobacco
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pubmed:year |
2007
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pubmed:articleTitle |
CD8+ T Cells are required for inflammation and destruction in cigarette smoke-induced emphysema in mice.
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pubmed:affiliation |
Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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pubmed:publicationType |
Journal Article,
Research Support, N.I.H., Extramural
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