Linked Life Data

2567062

Source:http://linkedlifedata.com/resource/pubmed/id/2567062

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1989-6-28
pubmed:abstractText
In order to understand the role of T cells in postinjury fibroplasia, we have studied wound healing in congenitally athymic nude mice that lack a normally developed T cell system. Healing of incisional wounds, as assessed by wound breaking strength, was significantly stronger in nude mice compared with normal thymus-bearing animals. This was accompanied by a marked increase in the amount of reparative collagen synthesized at the wound site, as assessed by the hydroxyproline content of subcutaneously implanted sponges. Because nude mice have some extrathymic T cell maturation, we used an anti-Thy-1.2 (30H12) monoclonal antibody to selectively deplete T cells in vivo. Although such treatments impaired wound healing in normal mice, they had no effect on any wound healing parameter in nude mice. In a separate experiment, T cell reconstitution of nude mice, sufficient to significantly enhance in vivo delayed hypersensitivity responses, led to a decrease in both wound breaking strength and hydroxyproline deposition in subcutaneously implanted polyvinyl sponges. The data suggest that T cells play a dual role in wound healing: an early stimulatory role on macrophages, endothelial cells, and fibroblasts, and a late counterregulatory role, which may be responsible for the orderly completion of wound repair.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0039-6060
pubmed:author
pubmed:issnType
Print
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
764-9
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Wound healing in nude mice: a study on the regulatory role of lymphocytes in fibroplasia.
pubmed:affiliation
Department of Surgery, Sinai Hospital of Baltimore, Md.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.