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1996-03-09
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Document 0215
DOCN M9650215
TI T cell clones from a Sjogren's syndrome salivary gland biopsy produce
high levels of IL-10.
DT 9605
AU Brookes SM; Cohen SB; Price EJ; Webb LM; Feldmann M; Maini RN; Venables
PJ; Kennedy Institute of Rheumatology, London, UK.
SO Clin Exp Immunol. 1996 Feb;103(2):268-72. Unique Identifier : AIDSLINE
MED/96152675
AB Sjogren's syndrome (SS) is characterized by a focal periductal salivary
gland infiltrate consisting mainly of T and B lymphocytes. Most of the T
cells bear the memory CD4+ Th1-like phenotype and express high levels of
class II, though CD8+ cells are also present. We have studied 17 labial
salivary gland and 15 peripheral blood T cell clones from a patient with
primary SS. The tissue clones were 71% CD8+ and 29% CD4+, and the
peripheral blood-derived clones were 60% CD8+ and 40% CD4+. The CD4+ T
cell clones from both the salivary gland and autologous peripheral blood
were of the Th1 phenotype, in that they produced interferon-gamma
(IFN-gamma) and IL-2 but very little IL-4 after 24 h stimulation with
phorbol myristate acetate and anti-CD3 antibody. The salivary
gland-derived CD4+ clones produced 15 times more IL-10 (7.92 ng/ml) than
peripheral blood-derived CD4+ clones (0.52 ng/ml, P < or = 0.02). The
tissue CD8+ clones produced 1.2 times (P < 0.04) more IFN-gamma and CD4+
clones produced 3.5 times less IL-2 (P < 0.02) than the respective
PBM-derived clones. The accumulation of Th1-type cells producing high
levels of IL-10 in the salivary gland suggests a specific
immunoregulatory function at the site of inflammation in SS.
DE Antigens, CD4/IMMUNOLOGY Antigens, CD8/IMMUNOLOGY Biopsy Case Report
Clone Cells Female Human Interleukin-10/*BIOSYNTHESIS Middle Age
Salivary Glands/*PATHOLOGY Sjogren's Syndrome/*IMMUNOLOGY/PATHOLOGY
Support, Non-U.S. Gov't T-Lymphocytes/*IMMUNOLOGY/PATHOLOGY Th1
Cells/IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).