Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-8-7
pubmed:abstractText
Lung fibrosis is an important pulmonary disease with a high mortality rate, but its pathophysiological mechanism has not been fully clarified. Various types of cells have been implicated in the development of lung fibrosis, including T cells. However, the contribution of functional molecules expressed on T cells to the development of lung fibrosis remains largely unknown. In this study, we determined whether costimulation via CD28 on T cells was crucial for the development of lung fibrosis by intratracheally administering bleomycin into CD28-deficient mice. Compared with wild-type mice, the CD28-deficient mice showed markedly impaired lung fibrosis after injection with low doses of bleomycin, as judged by histological changes and hydroxyproline content in the lungs. In addition, bleomycin-induced T cell infiltration into the airways and production of several cytokines and chemokines including IL-5 were also impaired in the CD28-deficient mice. Furthermore, adoptive transfer of CD28-positive T cells from wild-type mice recovered the impaired bleomycin-induced lung fibrosis in CD28-deficient mice. These findings suggest that the CD28-mediated T cell costimulation plays a critical role in the development of lung fibrosis, possibly by regulating the production of cytokines and chemokines in the lung. Thus, manipulation of the CD28-mediated costimulation could be a potential therapeutic strategy for the prevention of lung fibrosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1977-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11489978-Adoptive Transfer, pubmed-meshheading:11489978-Animals, pubmed-meshheading:11489978-Antigens, CD, pubmed-meshheading:11489978-Antigens, CD28, pubmed-meshheading:11489978-Antigens, CD86, pubmed-meshheading:11489978-Bleomycin, pubmed-meshheading:11489978-Cell Movement, pubmed-meshheading:11489978-Chemokines, pubmed-meshheading:11489978-Cytokines, pubmed-meshheading:11489978-Dose-Response Relationship, Drug, pubmed-meshheading:11489978-Female, pubmed-meshheading:11489978-Intubation, Intratracheal, pubmed-meshheading:11489978-Lymphocytes, pubmed-meshheading:11489978-Macrophages, Alveolar, pubmed-meshheading:11489978-Membrane Glycoproteins, pubmed-meshheading:11489978-Mice, pubmed-meshheading:11489978-Mice, Inbred C57BL, pubmed-meshheading:11489978-Mice, Knockout, pubmed-meshheading:11489978-Neutrophils, pubmed-meshheading:11489978-Pulmonary Fibrosis, pubmed-meshheading:11489978-T-Lymphocyte Subsets
pubmed:year
2001
pubmed:articleTitle
Impairment of bleomycin-induced lung fibrosis in CD28-deficient mice.
pubmed:affiliation
Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't