title: Human CD4+ CD25 high cells suppress proliferative memory lymphocyte responses to herpes simplex virus type 2.
abstract: Lymphocytes with the regulatory CD4+ CD25+ phenotype frequently suppress memory T-cell responses. Murine herpes simplex virus type 1 (HSV-1) models have shown that CD4+ CD25+ cells can limit immunity-mediated corneal damage but slow viral clearance. We investigated the effect of CD4+ CD25+ cells from healthy HSV-2-infected humans on recall proliferative (CD4) responses to HSV-2. Depletion and reconstitution experiments were consistent with a suppressive effect of autologous blood-derived CD4+ CD25+ cells for whole HSV-2 antigen. Regulatory T cells may modulate human CD4 memory responses to HSV-2 and influence their antiviral and inflammatory functions.
authors.affiliation: Department of Medicine, University of Washington, Seattle, Washington 98195, USA.
authors.forename: George A
authors.initials: GA
authors.lastname: Diaz
authors.forename: David M
authors.initials: DM
authors.lastname: Koelle
mesh_terms: D000818:Animals; D000956:Antigens, Viral / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology*; D018258:Herpesvirus 2, Human / Q000276:immunology*; D006801:Humans; D007156:Immunologic Memory; D008213:Lymphocyte Activation; D051379:Mice; D015375:Receptors, Interleukin-2 / Q000032:analysis*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
chemical_list: D000956:Antigens, Viral; D015375:Receptors, Interleukin-2