Linked Life Data

7916906

Source:http://linkedlifedata.com/resource/pubmed/id/7916906

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-10-27
pubmed:abstractText
Inclusion body myositis (IBM) is one member of a group of disorders known as idiopathic inflammatory myopathies (IIM) in which autoreactive T cells directed against muscle are thought to play a primary role in disease pathogenesis. We have utilized the polymerase chain reaction to determine the pattern of alpha beta T-cell receptor (TCR) variable (V) gene expression in muscle biopsies from 13 IBM patients. In the majority of biopsies, we detected oligoclonal patterns of TCR V gene expression by muscle-infiltrating lymphocytes; an average of six out of the 22 TCR V alpha gene families surveyed and seven out of 24 TCR V beta gene families surveyed were detected per biopsy. While no TCR V alpha gene families were over-represented in our survey, TCR V beta 3 and V beta 6 gene usage was a prominent feature of IBM muscle biopsies. TCR gene expression was characterized further by analysing the junctional sequence composition of both V beta 3 and V beta 6 clones from muscle biopsies of the IBM patients. A large number of structurally diverse V beta 3 and V beta 6 clonotypes were identified from these patients demonstrating a polyclonal pattern of T cell infiltration. These data, while describing prominent TCR V beta 3 and V beta 6 gene detection, do not suggest that a common antigen-driven T-cell response promotes chronic inflammation in muscle of IBM patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0896-8411
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
321-33
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
The alpha beta T-cell receptor repertoire in inclusion body myositis: diverse patterns of gene expression by muscle-infiltrating lymphocytes.
pubmed:affiliation
Laboratory of Molecular Immunology, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892.
pubmed:publicationType
Journal Article