title: T-cell receptor V alpha and V beta gene use by infiltrating T cells in labial glands of patients with Sjögren's syndrome.
abstract: Sjögren's syndrome is an autoimmune disease affecting the exocrine glands; it is thought to result from T-cell-mediated damage. In the labial glands of 20 patients with Sjögren's syndrome, infiltrating T cells were immunohistochemically characterized, and T-cell receptor (TCR) gene expression was examined with a method based on polymerase chain reaction. Most of these lymphocytes expressed CD3, CD4, CD45RO, and TCR alpha beta, whereas less than 5% of them expressed CD25 and CD69. The TCR V alpha and V beta genes expressed in peripheral blood mononuclear cells were diverse, whereas the TCR V alpha and V beta repertoires in the labial glands were more restricted but were still heterogeneous. The predominantly used V alpha and V beta families in the labial glands, when compared with those in peripheral blood mononuclear cells, were found to vary in individual patients and also to differ from patient to patient. Thus the T-cell population in the labial glands was polyclonal but showed a more restricted pattern than that seen in peripheral blood mononuclear cells.
authors.affiliation: Second Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Ohyama
authors.forename: S
authors.initials: S
authors.lastname: Nakamura
authors.forename: G
authors.initials: G
authors.lastname: Matsuzaki
authors.forename: M
authors.initials: M
authors.lastname: Shinohara
authors.forename: A
authors.initials: A
authors.lastname: Hiroki
authors.forename: M
authors.initials: M
authors.lastname: Oka
authors.forename: K
authors.initials: K
authors.lastname: Nomoto
mesh_terms: D000328:Adult; D000368:Aged; D000945:Antigens, Differentiation, T-Lymphocyte / Q000276:immunology; D001483:Base Sequence; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D017931:DNA Primers; D005260:Female; D015870:Gene Expression; D018740:Genetic Heterogeneity; D006801:Humans; D007124:Immunoenzyme Techniques; D007156:Immunologic Memory; D017493:Leukocyte Common Antigens / Q000276:immunology; D007963:Leukocytes, Mononuclear / Q000276:immunology; D008046:Lip; D008875:Middle Aged; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000032:analysis; D016693:Receptors, Antigen, T-Cell, alpha-beta / Q000096:biosynthesis / Q000235:genetics*; D012470:Salivary Glands, Minor / Q000276:immunology / Q000473:pathology*; D012859:Sjogren's Syndrome / Q000235:genetics / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000945:Antigens, Differentiation, T-Lymphocyte; D017931:DNA Primers; D012333:RNA, Messenger; D016693:Receptors, Antigen, T-Cell, alpha-beta; D017493:Leukocyte Common Antigens