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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1991-8-7
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pubmed:abstractText |
Treatment of chickens as embryos and in the first six days after hatching with mg amounts of anti-TCR2 (alpha beta T cell antigen receptor) antibody plus thymectomy 6 to 8 days after hatching suppressed by more than 90% the TCR2 and TCR1 (TCR gamma delta) subpopulations in the blood. Thymectomy alone resulted only in a profound reduction (greater than 90%) of the absolute number of TCR1 cells, while the absolute number of TCR2 cells was reduced only by 65%. We were interested in the regulation of the immunoglobulin synthesis in these T cell deficient chickens. We determined serum IgG, IgM and IgA levels and found a profound selective reduction (by about 90% on average) of the serum IgA level in anti-TCR2 antibody treated plus thymectomized chickens. In chickens which had been thymectomized only, the serum IgA level was reduced on average only by about 60%. Serum IgG and IgM levels were not reduced in any group. Thus, there was a positive correlation of the serum IgA level and the absolute number of TCR2 cells in all groups. These results indicate that T cells which play a role in IgA specific isotype switching or in IgA B cell differentiation belong to the TCR2 subpopulation.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0514-7158
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
38
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
28-34
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1905863-Animals,
pubmed-meshheading:1905863-Chick Embryo,
pubmed-meshheading:1905863-Chickens,
pubmed-meshheading:1905863-Immunization, Passive,
pubmed-meshheading:1905863-Immunoglobulins,
pubmed-meshheading:1905863-Receptors, Antigen, T-Cell,
pubmed-meshheading:1905863-Thymectomy
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pubmed:year |
1991
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pubmed:articleTitle |
Effect of perinatal anti-TCR2 treatment and thymectomy on serum immunoglobulin levels in the chicken.
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pubmed:affiliation |
Institut für Physiologie, Physiologische Chemie und Ernährungsphysiologie, Tierärztliche Fakultät, Universität Müchen, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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