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M9550788.TXT
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1995-03-25
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Document 0788
DOCN M9550788
TI Increment of CD8S6F1 cells in synovial fluid from patients with
rheumatoid arthritis.
DT 9505
AU Ueki Y; Eguchi K; Miyake S; Nagataki S; Tominaga Y; Department of
Internal Medicine, Sasebo Chuo Hospital, Japan.
SO Ann Rheum Dis. 1994 Dec;53(12):816-22. Unique Identifier : AIDSLINE
MED/95168927
AB OBJECTIVE--To investigate the role of CD8 cell subsets in the
pathogenesis of rheumatoid arthritis (RA) and the phenotypes of T cells
adherent or non-adherent to the target cells (endothelial cells and
synovial cells) pre-treated with IL-1 beta. METHODS--The expression of
S6F1 on CD8 cells and that of an activation marker on CD8 cells and CD8
cell subsets was evaluated in specimens of peripheral blood and synovial
fluid obtained from 15 patients with RA and 10 with osteoarthritis (OA)
using a two- or three-colour immunofluorescence method for analysis.
RESULTS--The percentage of CD8S6F1 cells among CD8 cells in synovial
fluid was significantly greater than that of peripheral blood. Synovial
fluid from RA patients had a greater percentage of CD8S6F1 cells
compared with either peripheral blood of matched patients or synovial
fluid of OA patients. The percentage of CD8HLA-DR cells in synovial
fluid was markedly greater than that in paired samples of peripheral
blood in patients with RA. In the CD8S6F1 cells from both groups of
patients, synovial fluid showed an increased percentage of HLA-DR cells
compared with peripheral blood. Similar results were observed in CD8
cells lacking S6F1 expression (CD8S6F1-) from both groups of patients.
There was no significant difference in the percentage of HLA-DR cells
between CD8S6F1 and CD8S6F1- cell populations in peripheral blood. In
contrast with peripheral blood, in synovial fluid of RA patients the
percentage of HLA-DR cells in the CD8S6F1 cell population was markedly
greater than that in the CD8S6F1- population. However, the percentage of
HLA-DR cells in both cell populations was similar in synovial fluid of
OA patients. In both the endothelial and the synovial cell adhesion
assays, the percentage of CD8S6F1 among CD8 cells and the mean
fluorescence intensity of S6F1 antigen on CD8S6F1 cells were
significantly greater in the adherent T cell population than that in the
non-adherent T cell population. CONCLUSION--These results suggest that
increased expression of S6F1 antigen and the increased percentage of
HLA-DR cells on CD8 cells in synovial fluid may be responsible for the
migration of these cells into inflamed synovial tissues, and for
cellular interactions between these cells and synovial cells or the
extracellular matrix.
DE Adult Aged Antigens, CD8/ANALYSIS Antigens, Surface/IMMUNOLOGY
Arthritis, Rheumatoid/BLOOD/*IMMUNOLOGY Cell Adhesion/IMMUNOLOGY
CD8-Positive T-Lymphocytes/*IMMUNOLOGY Endothelium/CYTOLOGY Female
Flow Cytometry Fluorescent Antibody Technique Human HLA-DR
Antigens/IMMUNOLOGY Interleukin-1/PHARMACOLOGY Lymphocyte Count Male
Middle Age Synovial Fluid/CYTOLOGY/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).