PMID: 6978718Apr 1, 1982Paper

Use of monoclonal antibodies to analyze peripheral blood and salivary gland lymphocyte subsets in Sjögren's syndrome

Arthritis and Rheumatism
R I FoxJ H Vaughan

Abstract

Using monoclonal antibodies to cell surface antigens, we studied lymphocyte subsets in 15 patients with primary Sjögren's syndrome. The absolute number of OKT8-positive cells (reactive with T suppressor/cytotoxic cells) was significantly decreased in such patients (353 +/- 186/mm3) compared to age-matched controls (631 +/- 150/mm3) (P less than 0.001). The number of OKT4-positive cells (reactive with T helper/inducer cells) was comparable in both groups (932 +/- 588/mm3 versus 1.073 +/- 290/mm3). The ratio of OKT4/OKT8-reactive peripheral blood lymphocytes was increased (greater than 2.4) in 67% of these patients and ranged from 1.0 to 6.4 (normal = 1.8 +/- 0.3). OKT4-positive cells were the predominant subset in lip biopsy specimens stained with immunofluorescence or immunoperoxidase techniques; the OKT4/OKT8 ratio exceeded 3.0 in all 5 patients examined. In 1 patient with pseudolymphoma, a lymph node biopsy specimen contained 80% T cells with an OKT4/OKT8 ratio of 3.2. Thus, OKT4-positive cells predominated in the peripheral blood lymphocytes as well as in sites of inflammation in primary Sjögren's syndrome. The decreased number of OKT8-positive cells in primary Sjögren's syndrome was probably not caused by circulating autoan...Continue Reading

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