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In the blood of 10 patients with rheumatoid arthritis (RA), the number of TCR gamma delta+T cells and CD5+B cells was 5.5% +/- 4.38 and 34.3% +/- 20.62 (mean +/- s.d.), respectively. In 12 patients with primary Sjögren's syndrome (SS) the mean +/- s.d. of these T and B cell subpopulations was 4.75% +/- 3.85 and 38.75% +/- 22.68. These values were significantly increased as compared with the circulating T and B cells from 22 healthy subjects in whom TCR gamma delta+T cells were 2.09 +/- 1.01 (P less than 0.001 for RA; P less than 0.004 for SS) and CD5+B cells were 18.09% +/- 4.47 (P less than 0.001 for RA and SS). This increase was not influenced by disease activity. Furthermore, there was a marked correlation (P less than 0.001) between the levels of TCR gamma delta +T cells and CD5+B cells. This novel finding of coordinate elevated levels of lymphocytes with fetal phenotypes in RA and primary SS suggests an immunological imbalance that may have implications in these diseases.

Type

Journal article

Journal

Clin Exp Immunol

Publication Date

08/1989

Volume

77

Pages

175 - 178

Keywords

Antigens, Differentiation, Arthritis, Rheumatoid, B-Lymphocytes, CD5 Antigens, Humans, Receptors, Antigen, T-Cell, Receptors, Antigen, T-Cell, gamma-delta, Sjogren's Syndrome, T-Lymphocytes