Document 0364 DOCN M9610364 TI CD4 down-modulation by ganglioside and phorbol ester inhibits human herpesvirus 7 infection. DT 9601 AU Yasukawa M; Inoue Y; Sada E; Yakushijin Y; Furukawa M; Fujita S; First Department of Internal Medicine, Ehime University School of; Medicine, Japan. SO J Gen Virol. 1995 Sep;76 ( Pt 9):2381-5. Unique Identifier : AIDSLINE MED/96005065 AB Recently, data demonstrating that CD4 is an essential component of the receptor for human herpesvirus 7 (HHV-7) as well as for human immunodeficiency virus have been accumulating. Since gangliosides and phorbol esters are known to induce selective down-modulation of cell surface CD4 expression, it might be expected that treatment with these agents would interfere with HHV-7 infection of CD4+ T cells. The present study, undertaken to verify this possibility, demonstrated that addition of monosialoganglioside-GM1 or 12-O-tetradecanoylphorbol 13-acetate effectively induced disappearance of CD4 from the cell surface and also reduced HHV-7 infectivity, as judged by the CPE on virus-infected cells and studies of indirect immunofluorescence, TCID50 and semi-quantitative PCR of the HHV-7 genome. Taken together with previous studies, the present data strongly suggest that the CD4 molecule is a critical component of the receptor for HHV-7. DE Antigens, CD4/*DRUG EFFECTS Antigens, Viral/ANALYSIS Antiviral Agents/*PHARMACOLOGY Base Sequence Cell Line Cytopathogenic Effect, Viral CD4-Positive T-Lymphocytes/CYTOLOGY Down-Regulation (Physiology) DNA Primers G(M1) Ganglioside/*PHARMACOLOGY Herpesviridae Infections/VIROLOGY Herpesvirus 7, Human/*DRUG EFFECTS/IMMUNOLOGY Human Immunosuppressive Agents/*PHARMACOLOGY Molecular Sequence Data Tetradecanoylphorbol Acetate/*PHARMACOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).