Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-2-22
pubmed:abstractText
A small fraction of T cells expresses killer-cell Ig-like receptors (KIR), a family of MHC class I-specific receptors that can modulate TCR-dependent activation of effector functions. Although KIR(+) cells are enriched within Ag-experienced T cell subsets, the precise relationships between KIR(+) and KIR(-) T cells and the stage of KIR induction on these lymphocytes remain unclear. In this study, we compared KIR(-) and KIR(+) alphabeta T cell clones, sorted by means of the CD158b (KIR2DL2/KIR2DL3/KIR2DS2) specific mAb GL183. We isolated several pairs of CD158b(+) and CD158b(-) alphabeta T cell clones sharing identical productive and nonproductive TCR transcripts. We showed that expression of functional KIR on T cells is regulated after termination of TCR rearrangements. Transcriptional regulation of KIR genes was documented in multiple T cell clones generated from the same donor, and the presence of KIR transcripts was also detected in KIR(-) T cells. These results document a complex regulation of KIR expression in T cells at both pre and posttranscriptional levels, under the control of yet undefined signals provided in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
166
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2487-94
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:11160309-Amino Acid Sequence, pubmed-meshheading:11160309-Animals, pubmed-meshheading:11160309-COS Cells, pubmed-meshheading:11160309-Cell Differentiation, pubmed-meshheading:11160309-Cell Line, pubmed-meshheading:11160309-Cell Line, Transformed, pubmed-meshheading:11160309-Clone Cells, pubmed-meshheading:11160309-Gene Expression Regulation, pubmed-meshheading:11160309-Gene Rearrangement, alpha-Chain T-Cell Antigen Receptor, pubmed-meshheading:11160309-Gene Rearrangement, beta-Chain T-Cell Antigen Receptor, pubmed-meshheading:11160309-Herpesvirus 4, Human, pubmed-meshheading:11160309-Humans, pubmed-meshheading:11160309-Lymphocyte Activation, pubmed-meshheading:11160309-Molecular Sequence Data, pubmed-meshheading:11160309-RNA Processing, Post-Transcriptional, pubmed-meshheading:11160309-Reading Frames, pubmed-meshheading:11160309-Receptors, Antigen, T-Cell, alpha-beta, pubmed-meshheading:11160309-Receptors, Immunologic, pubmed-meshheading:11160309-Receptors, KIR, pubmed-meshheading:11160309-Receptors, KIR2DL2, pubmed-meshheading:11160309-Receptors, KIR2DL3, pubmed-meshheading:11160309-T-Lymphocyte Subsets, pubmed-meshheading:11160309-Transcription, Genetic
pubmed:year
2001
pubmed:articleTitle
Regulation of inhibitory and activating killer-cell Ig-like receptor expression occurs in T cells after termination of TCR rearrangements.
pubmed:affiliation
Institut National de la Santé et de la Recherche Médicale, Unité 463, Institut de Biologie, Nantes, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't