title: Changes in intracellular cytokine levels in newborn and adult lymphocytes induced by HSV-1.
abstract: Changes in the expression of intracellular interleukin-2 (IL-2), interleukin-4 (IL-4), interferon (IFN)-gamma, and tumor necrosis factor (TNF)-alpha in newborn and adult lymphocytes induced by herpes simplex virus (HSV)-1 were examined. Cord blood mononuclear cells (CBMC) or adult peripheral blood mononuclear cells (PBMC) were infected with HSV-1 and cultured with phorbol 2-myristate 13-acetate (PMA) plus ionomycin in the presence of monensin for 4 hr. Surface antigen and intracellular cytokines were stained simultaneously and analyzed by flow cytometry. The percentage of cells that expressed IL-2, IFN-gamma, and TNF-alpha was significantly increased in HSV-1-infected CD3+, CD4+, CD8+, CD45RA+, and CD45RO+ lymphocytes compared with uninfected lymphocytes from adult PBMC. The percentage of cells that expressed IL-2 and TNF-alpha was increased significantly in HSV-1-infected CD3+, CD4+, CD8+, and CD45RA+ lymphocytes compared with uninfected lymphocytes from CBMC. IFN-gamma was under the detectable level in HSV-1-infected and uninfected lymphocytes from CBMC. Intracellular IL-4 was not detected in HSV-1 or in uninfected lymphocytes from PBMC and CBMC. These results demonstrate that HSV-1 enhances intracellular levels of IL-2, IFN-gamma, and TNF-alpha in adult lymphocytes and defective IFN-gamma production in cord blood.
authors.affiliation: Department of Pediatrics, Mie University School of Medicine, Tsu, Japan. virus@clin.medic.mie-u.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Ito
authors.forename: W
authors.initials: W
authors.lastname: Koide
authors.forename: M
authors.initials: M
authors.lastname: Sakurai
mesh_terms: D000328:Adult; D000911:Antibodies, Monoclonal; D000956:Antigens, Viral / Q000032:analysis; D016207:Cytokines / Q000096:biosynthesis*; D005260:Female; D005312:Fetal Blood / Q000378:metabolism / Q000821:virology*; D005434:Flow Cytometry; D006561:Herpes Simplex / Q000276:immunology*; D018259:Herpesvirus 1, Human / Q000276:immunology*; D006801:Humans; D007231:Infant, Newborn; D007371:Interferon-gamma / Q000096:biosynthesis; D007376:Interleukin-2 / Q000096:biosynthesis; D007963:Leukocytes, Mononuclear / Q000378:metabolism* / Q000821:virology*; D008213:Lymphocyte Activation; D011247:Pregnancy; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis
chemical_list: D000911:Antibodies, Monoclonal; D000956:Antigens, Viral; D016207:Cytokines; D007376:Interleukin-2; D014409:Tumor Necrosis Factor-alpha; D007371:Interferon-gamma