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  • Title: Dominant T-cell receptor beta-chain gene rearrangements indicate clonal expansion in the rheumatoid joint.
    Author: Miltenburg AM, van Laar JM, Daha MR, de Vries RR, van den Elsen PJ, Breedveld FC.
    Journal: Scand J Immunol; 1990 Jan; 31(1):121-6. PubMed ID: 2154031.
    Abstract:
    T-cell receptor (TcR) beta and delta gene rearrangements were studied in anti-CD3 expanded T-cell populations cultured from the synovial membrane (SM) (n = 5) or synovial fluid (SF) (n = 2) of rheumatoid arthritis (RA) patients. Dominant TcR beta-chain gene rearrangements to C beta 1 were demonstrated in all the patients tested and 1-3 expanded clones per patient were found. Clonal rearrangements to C beta 2 were detected in one SM sample (two clones) and one SF sample (one clone). The TcR delta gene was deleted in all the samples tested. We conclude that clonal dominance may be found in expanded T-cell populations from SM and SF of RA patients. Multiple clones may be present, either using the C beta 1 or C beta 2 gene segment.
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