title: [HLA-DR antigen expression on peripheral T cell subsets in pityriasis rosea Gibert, herpes zoster, and psoriasis].
abstract: Using 2 color fluorescein activated cytometric analysis, HLA-DR antigen expression in T cell subsets was studied in pityriasis rosea (PR) and compared to the results from herpes zoster (HZ) of viral origin and psoriasis (Ps). In HZ and PR, HLA-DR was significantly expressed on the T cell surface (Leu-4+ cells). Among the T cell subsets, HLA-DR antigen was predominantly expressed on suppressor/cytotoxic cells (Leu-2a+) in HZ. In contrast, it was predominantly expressed on helper cells (Leu-3a+) in PR. However, activated T cell antigen (Tac) was not significantly expressed on T cells (Leu-4+) in either HZ or in PR. This HLA-DR antigen expression of T cell subsets was depressed to the normal level in the recovery phases of HZ and PR.
authors.forename: Y
authors.initials: Y
authors.lastname: Aikawa
authors.forename: T
authors.initials: T
authors.lastname: Yoshiike
authors.forename: H
authors.initials: H
authors.lastname: Ogawa
mesh_terms: D006684:HLA-DR Antigens / Q000032:analysis*; D006562:Herpes Zoster / Q000097:blood / Q000276:immunology*; D006801:Humans; D007958:Leukocyte Count; D010915:Pityriasis / Q000097:blood / Q000276:immunology*; D011565:Psoriasis / Q000097:blood / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D006684:HLA-DR Antigens