Source:http://linkedlifedata.com/resource/pubmed/id/11032239
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2001-2-13
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pubmed:abstractText |
The T helper subsets Th1 and Th2 regulate specific types of immune responses by producing distinct sets of cytokines. Differentiation of the T helper subsets from their common precursors, naive CD4+ T cells, is induced by antigen stimulation and controlled by various other conditions. Of these conditions, the contributions of the cytokine environment have been the best characterized. The presence of interleukin-4 (IL-4) directs the differentiation towards Th2 cells, whereas IL-12 induces Thl differentiation. The Th2 signature cytokine genes encoding IL-4, IL-13, and IL-5 are clustered, and noncoding regions such as the intergenic region of the IL-4 and IL-13 genes are highly conserved from mice to humans. Alteration of the chromatin structure of this Th2 cytokine cluster region is detected as nuclease-accessible regions specific to Th2 cells. Activation of STAT6 promotes Th2 differentiation by inducing Th2-specific transcription factors, including GATA3. Expression of GATA3 induces Th2 differentiation and enhances the Th2 cell-specific chromatin accessibility, indicating that GATA3 is a key protein that regulates differentiation through chromatin remodeling. T helper subset differentiation provides a good system to study gene expression regulation at the chromatin level.
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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 |
Jun
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pubmed:issn |
1521-6543
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
49
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
473-8
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pubmed:dateRevised |
2005-11-16
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pubmed:meshHeading |
pubmed-meshheading:11032239-Alleles,
pubmed-meshheading:11032239-Animals,
pubmed-meshheading:11032239-Cell Differentiation,
pubmed-meshheading:11032239-Chromatin,
pubmed-meshheading:11032239-Gene Expression Regulation,
pubmed-meshheading:11032239-Humans,
pubmed-meshheading:11032239-Interleukins,
pubmed-meshheading:11032239-Mice,
pubmed-meshheading:11032239-Models, Genetic,
pubmed-meshheading:11032239-Receptors, Cytokine,
pubmed-meshheading:11032239-Signal Transduction,
pubmed-meshheading:11032239-Th1 Cells,
pubmed-meshheading:11032239-Th2 Cells,
pubmed-meshheading:11032239-Transcription Factors
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pubmed:year |
2000
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pubmed:articleTitle |
Chromatin remodeling and T helper subset differentiation.
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pubmed:affiliation |
Department of Molecular and Developmental Biology, Institute of Medical Science, University of Tokyo, Japan.
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pubmed:publicationType |
Journal Article,
Review
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