title: Nonsegmental vitiligo: decrease of the CD45RA+ T-cell subset and evidence for peripheral T-cell activation.
abstract: Peripheral T-lymphocytes from 16 randomly selected patients with nonsegmental vitiligo were labeled with monoclonal antibodies recognizing T-cell receptor (TCR) alpha/beta, TCR gamma/delta, CD3, CD4, CD8, CD45RA, CD45RO, CD11b, CD11c, CD16, CD56, CD25, CD54, and HLA-DR antigens. In comparison with matched controls, a significant decrease of the CD45RA+ subset (P less than 0.03) together with significant increase of the circulating HLA-DR+ cells (P less than 0.02) was found. No other alterations were detected. These findings may point to some autoimmune phenomena involved in the pathogenesis of the disease. The increased HLA-DR expression indicates the presence of activated peripheral T-cells. Thus, our data provide new and further evidence for T-cell dysregulation in nonsegmental vitiligo.
authors.affiliation: Department of Dermatology, University Medical Center Steglitz, Free University of Berlin, Germany.
authors.forename: M B
authors.initials: MB
authors.lastname: Abdel-Naser
authors.forename: W D
authors.initials: WD
authors.lastname: Ludwig
authors.forename: H
authors.initials: H
authors.lastname: Gollnick
authors.forename: C E
authors.initials: CE
authors.lastname: Orfanos
mesh_terms: D000293:Adolescent; D000328:Adult; D001402:B-Lymphocytes / Q000473:pathology; D005260:Female; D006684:HLA-DR Antigens / Q000032:analysis; D006801:Humans; D007694:Killer Cells, Natural / Q000473:pathology; D007958:Leukocyte Count; D008213:Lymphocyte Activation / Q000502:physiology; D008297:Male; D008875:Middle Aged; D011948:Receptors, Antigen, T-Cell / Q000032:analysis; D016176:T-Lymphocyte Subsets / Q000473:pathology* / Q000502:physiology; D014820:Vitiligo / Q000473:pathology*
chemical_list: D006684:HLA-DR Antigens; D011948:Receptors, Antigen, T-Cell