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Limited T-cell receptor V gene usage in inclusion body myositis. 1996

I M Fyhr, and A R Moslemi, and A Tarkowski, and C Lindberg, and A Oldfors
Department of Pathology, Göteborg University, Sahlgrenska Hospital, Gothenburg, Sweden.

Inclusion body myositis (IBM) is a chronic, progressive inflammatory myopathy. The inflammatory infiltrates are dominated by T cells, which frequently invade muscle fibres. The present study was performed to characterize the usage of the variable (V) segment of the T-cell receptor of muscle infiltrating cells in IBM. Using the reverse transcriptase polymerase chain reaction (RT-PCR) technique the authors analysed the expression of 22 V alpha and 24 V beta families in muscle tissue from six patients with IBM displaying intense inflammatory cell infiltration. The following V alpha/V beta families appeared in at least 50% of the patients: V alpha 1, 5, 7, 15, 16, 17, 20, 21, 22 and V beta 3, 5.2, 8, 12, 14, 22. In all patients V alpha 7, 16 and V beta 8 were expressed in muscle tissue. Furthermore, in two of the patients peripheral blood lymphocytes (PBL) were investigated in parallel. There was a restricted usage of V alpha and V beta families in muscle in comparison to PBL, indicating a selective homing or local proliferation of T lymphocytes in the inflammatory lesions in IBM.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012194 RNA-Directed DNA Polymerase An enzyme that synthesizes DNA on an RNA template. It is encoded by the pol gene of retroviruses and by certain retrovirus-like elements. EC 2.7.7.49. DNA Polymerase, RNA-Directed,RNA-Dependent DNA Polymerase,Reverse Transcriptase,RNA Transcriptase,Revertase,DNA Polymerase, RNA Directed,DNA Polymerase, RNA-Dependent,RNA Dependent DNA Polymerase,RNA Directed DNA Polymerase

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