Stimulation of antiviral antibody response in SHIV-IIIB-infected macaques

S. Muller, D. H. Margolin, G. Min, D. Lou, P. Nara, Michael Axthelm, H. Kohler

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Three macaques infected with SHIV-IIIB and expressing the shared 1F7-idiotypic marker on antibodies against HIV-1 gp120, were injected intravenously with 1F7 monoclonal antibodies (MoAb). As controls, a SHIV-IIIB-infected macaque was injected with a HIV-unrelated mouse monoclonal isotype antibody (TEPC-183) and two healthy, noninfected macaques were injected with MoAb 1F7. 1F7-id-expressing antibodies against gp120-IIIB decreased in two of the three MoAb 1F7-treated macaques and then rebounded. Importantly, antibodies binding to envelope proteins of heterologous HIV-1 strains MN, CM, and SF2, which were low or not detectable before the MoAb 1F7 treatment, increased rapidly following MoAb inoculations in all three 1F7 MoAb treated macaques, but not in the macaque injected with control MoAb TEPC-183. Newly arising antibodies reacting with heterologous virus, i.e. HIV-1 gp120-MN, SF2, and CM did not express 1F7-id. Surprisingly, significant increases of antibodies were also observed in the 1F7-inoculated macaques' antibodies directed to non-HIV antigens (DNP, peptides and BSA). The noninfected control animals did not produce antibodies to these antigens despite MoAb 1F7 treatment. These data show that the MoAb 1F7 injections of chronically SHIV-IIIB-infected macaques resulted in idiotype-specific clonal suppression with broadening the antibody response to HIV envelope proteins.

    Original languageEnglish (US)
    Pages (from-to)383-395
    Number of pages13
    JournalScandinavian Journal of Immunology
    Volume54
    Issue number4
    DOIs
    StatePublished - 2001

    Fingerprint

    Macaca
    Antibody Formation
    Antiviral Agents
    Monoclonal Antibodies
    Antibodies
    HIV-1
    Human Immunodeficiency Virus Proteins
    Antigens
    HIV
    Viruses
    Injections

    ASJC Scopus subject areas

    • Immunology

    Cite this

    Stimulation of antiviral antibody response in SHIV-IIIB-infected macaques. / Muller, S.; Margolin, D. H.; Min, G.; Lou, D.; Nara, P.; Axthelm, Michael; Kohler, H.

    In: Scandinavian Journal of Immunology, Vol. 54, No. 4, 2001, p. 383-395.

    Research output: Contribution to journalArticle

    Muller, S. ; Margolin, D. H. ; Min, G. ; Lou, D. ; Nara, P. ; Axthelm, Michael ; Kohler, H. / Stimulation of antiviral antibody response in SHIV-IIIB-infected macaques. In: Scandinavian Journal of Immunology. 2001 ; Vol. 54, No. 4. pp. 383-395.
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    abstract = "Three macaques infected with SHIV-IIIB and expressing the shared 1F7-idiotypic marker on antibodies against HIV-1 gp120, were injected intravenously with 1F7 monoclonal antibodies (MoAb). As controls, a SHIV-IIIB-infected macaque was injected with a HIV-unrelated mouse monoclonal isotype antibody (TEPC-183) and two healthy, noninfected macaques were injected with MoAb 1F7. 1F7-id-expressing antibodies against gp120-IIIB decreased in two of the three MoAb 1F7-treated macaques and then rebounded. Importantly, antibodies binding to envelope proteins of heterologous HIV-1 strains MN, CM, and SF2, which were low or not detectable before the MoAb 1F7 treatment, increased rapidly following MoAb inoculations in all three 1F7 MoAb treated macaques, but not in the macaque injected with control MoAb TEPC-183. Newly arising antibodies reacting with heterologous virus, i.e. HIV-1 gp120-MN, SF2, and CM did not express 1F7-id. Surprisingly, significant increases of antibodies were also observed in the 1F7-inoculated macaques' antibodies directed to non-HIV antigens (DNP, peptides and BSA). The noninfected control animals did not produce antibodies to these antigens despite MoAb 1F7 treatment. These data show that the MoAb 1F7 injections of chronically SHIV-IIIB-infected macaques resulted in idiotype-specific clonal suppression with broadening the antibody response to HIV envelope proteins.",
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