Activation of lymphocytes by varicella-zoster virus (VZV): expression of interleukin-2 receptors on lymphocytes cultured with VZV antigen.
The expression of human leukocyte antigen (HLA-DR) and interleukin-2 receptor (IL-2R; alpha and beta subunits) was significantly increased in peripheral blood mononuclear cells (PBMC) from varicella-zoster virus (VZV)-seropositive donors when PBMC were cultured with VZV antigen for 6 days. The increased expression of HLA-DR and IL-2R was observed in both CD4+ and CD8+ lymphocytes, which suggests that both types of lymphocytes from VZV-seropositive donors were activated when PBMC were cultured with VZV antigen. Adding anti-IL-2R alpha did not inhibit lymphocyte proliferation in response to VZV antigen, although marked inhibition was obtained by adding anti-IL-2R beta. No IL-2 was detected in the supernatant of PBMC cultured with VZV antigen; however, antibody to IL-2 inhibited lymphocyte proliferation on exposure to VZV antigen. These results indicate that IL-2 and expression of IL-2R beta are essential to lymphocyte activation by VZV antigen.
Ito
M
M
Department of Pediatrics, Mie University School of Medicine, Japan.
Nakano
T
T
Kamiya
T
T
Kitamura
K
K
Komada
Y
Y
Ihara
T
T
Kamiya
H
H
Sakurai
M
M
D000328:Adult; D000911:Antibodies, Monoclonal / Q000276:immunology; D000956:Antigens, Viral / Q000276:immunology*; D002644:Chickenpox / Q000276:immunology; D002648:Child; D006684:HLA-DR Antigens / Q000096:biosynthesis; D014645:Herpesvirus 3, Human / Q000276:immunology*; D006801:Humans; D007111:Immunity, Cellular; D007376:Interleukin-2 / Q000096:biosynthesis; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*; D015375:Receptors, Interleukin-2 / Q000096:biosynthesis*; D013601:T-Lymphocytes / Q000276:immunology
D000911:Antibodies, Monoclonal; D000956:Antigens, Viral; D006684:HLA-DR Antigens; D007376:Interleukin-2; D015375:Receptors, Interleukin-2