title: A functional human IgM response to HIV-1 Env after immunization with NYVAC HIV C.
abstract: Env-specific IgG and IgM were detected in 25 and 60%, respectively, of volunteers immunized with NYVAC expressing clade C gp120. The serum sample with the highest IgM titre but undetectable IgG neutralized the homologous isolate with a reciprocal IC90 titre of 7.8 in the absence of complement, and 24.4 in the presence of complement (P = 0.0003). These results suggest that vaccine-induced, Env-specific IgM may have antiviral activity and should be subjected to further investigation.
authors.affiliation: Sir William Dunn School of Pathology, University of Oxford, Oxford, UK.
authors.forename: Neil C
authors.initials: NC
authors.lastname: Sheppard
authors.forename: Anna C
authors.initials: AC
authors.lastname: Bates
authors.forename: Quentin J
authors.initials: QJ
authors.lastname: Sattentau
mesh_terms: D016915:AIDS Vaccines / Q000276:immunology*; D015483:HIV Antibodies / Q000096:biosynthesis*; D015699:HIV Envelope Protein gp120 / Q000276:immunology; D015497:HIV-1 / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G / Q000096:biosynthesis; D007075:Immunoglobulin M / Q000096:biosynthesis*; D014765:Viral Vaccines / Q000276:immunology*
chemical_list: D016915:AIDS Vaccines; D015483:HIV Antibodies; D015699:HIV Envelope Protein gp120; D007074:Immunoglobulin G; D007075:Immunoglobulin M; C078787:NYVAC vaccine; D014765:Viral Vaccines