Linked Life Data

20955343

Source:http://linkedlifedata.com/resource/pubmed/id/20955343

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-12-24
pubmed:abstractText
Engineered skin substitutes (ESSs) comprising both keratinocytes and fibroblasts can afford many advantages over the use of autologous keratinocyte grafts for the treatment of full-thickness and partial-thickness burns. In this study, we investigated the efficacy of a novel ESS containing both genetically altered fibroblasts that express the immunosuppressive factor indoleamine 2,3-dioxygenase (IDO) and primary keratinocytes from a nonautologous source to confer immune protection of xenogeneic cells cultured in a bilayer ESS. The results show that engraftment of IDO expressing skin substitutes on the back of rats significantly improves healing progression over 7 days compared with both nontreated and non-IDO-expressing skin substitutes (p<0.001). Immuno-staining of CD3 and CD31 suggests that IDO-expressing skin substitutes significantly suppress T cell infiltration (p<0.001) and improve neovascularization by four-fold (12.6±1.2 vs. 3.0±1.0 vessel-like structure/high power field), respectively. In conclusion, we found that IDO expression can improve the efficacy of nonautologous ESS for the purpose of wound healing by mitigating T-cell infiltration as well as promoting vascularization of the graft.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1524-475X
pubmed:author
pubmed:copyrightInfo
© 2010 by the Wound Healing Society.
pubmed:issnType
Electronic
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
614-23
pubmed:meshHeading
pubmed:articleTitle
Local expression of indoleamine 2,3-dioxygenase suppresses T-cell-mediated rejection of an engineered bilayer skin substitute.
pubmed:affiliation
Burn and Wound Healing Research Laboratory, Department of Surgery, Immunity and Infection Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't