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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1984-6-26
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pubmed:abstractText |
The immunoregulatory events leading to the generation of suppressor T cells after burn injury were studied by means of a mouse burn model. Immunoresponsiveness was assessed on various postburn days with a primary in vitro mixed lymphocyte reaction (MLR). Responses of burned mice were depressed between 3 and 14 days after burn. Suppression became significant 5 days after burn and remained so through 14 days after burn. The Ly-t surface phenotype of T cells was studied on days 5 and 7 after burn. On day 5 burn, T cells responsible for suppression bore an Ly-1+, 2- phenotype. By postburn day 7 suppressor T cells bore an Ly-1-,2+ phenotype. These observations are consistent with the notion of feedback suppression after burn injury, wherein Ly-1+, 2- T cells induce a subset of Ly-1+,2+ T cells, thereby generating Ly-1-,2+ suppressor effector T cells. An attempt was made to uncouple the putative suppressor inducer and the suppressor effector using low doses of cyclophosphamide (CY). A single dose of 25 mg CY/kg resulted in transient restoration of depressed burn responses. By using multiple sequential doses of CY, this restorative effect could be prolonged through 8 days after burn. A dosage schedule that restores responses of burn cells without affecting responses of control cells is presented.
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pubmed:grant | |
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
|
pubmed:issn |
0039-6060
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
95
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
699-706
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6233740-Animals,
pubmed-meshheading:6233740-Burns,
pubmed-meshheading:6233740-Cyclophosphamide,
pubmed-meshheading:6233740-Disease Models, Animal,
pubmed-meshheading:6233740-Drug Administration Schedule,
pubmed-meshheading:6233740-Feedback,
pubmed-meshheading:6233740-Immune Tolerance,
pubmed-meshheading:6233740-Lymphocyte Culture Test, Mixed,
pubmed-meshheading:6233740-Mice,
pubmed-meshheading:6233740-Mice, Inbred C57BL,
pubmed-meshheading:6233740-Mice, Inbred CBA,
pubmed-meshheading:6233740-Spleen,
pubmed-meshheading:6233740-T-Lymphocytes, Helper-Inducer,
pubmed-meshheading:6233740-T-Lymphocytes, Regulatory,
pubmed-meshheading:6233740-Time Factors
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pubmed:year |
1984
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pubmed:articleTitle |
A cyclophosphamide-sensitive suppressor T cell circuit induced by thermal injury.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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