title: Inhibition of interleukin-6-induced human immunodeficiency virus type 1 expression by anti-gp130 monoclonal antibody.
abstract: Interleukin 6 (IL-6) has been reported to upregulate the expression of human immunodeficiency virus type 1 (HIV-1) in infected monocyte/macrophages. Since IL-6 signal is transduced through the membrane glycoprotein gp130, we investigated the inhibitory effect of anti-gp130 monoclonal antibody (mAb) on IL-6-induced viral expression in monocytic cell lines latently infected with HIV-1. IL-6 significantly induced the expression of HIV-1 in U1 cells, whereas it had no effect in OM-10.1 cells. Flow cytometric analysis revealed that U1 but not OM-10.1 cells expressed gp130 on their surface. The anti-gp130 mAb could inhibit IL-6-induced HIV-1 expression in U1 cells in a dose dependent fashion. These results suggest that blocking the gp130 signal transduction may have therapeutic potential for the treatment of HIV-1 infection.
authors.affiliation: Division of Human Retroviruses, Faculty of Medicine, Kagoshima University, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Okamoto
authors.forename: K
authors.initials: K
authors.lastname: Yasukawa
authors.forename: K
authors.initials: K
authors.lastname: Katsuura
authors.forename: M
authors.initials: M
authors.lastname: Baba
mesh_terms: D000911:Antibodies, Monoclonal / Q000494:pharmacology*; D015703:Antigens, CD / Q000276:immunology*; D002460:Cell Line; D050822:Cytokine Receptor gp130; D015497:HIV-1 / Q000276:immunology*; D006801:Humans; D015850:Interleukin-6 / Q000494:pharmacology*; D008562:Membrane Glycoproteins / Q000276:immunology*; D009000:Monocytes / Q000187:drug effects / Q000276:immunology* / Q000821:virology*; D015398:Signal Transduction / Q000276:immunology; D014775:Virus Activation / Q000276:immunology; D017735:Virus Latency / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D015703:Antigens, CD; C494199:IL6ST protein, human; D015850:Interleukin-6; D008562:Membrane Glycoproteins; D050822:Cytokine Receptor gp130