Maternal monoclonal antibody to the V3 loop alters specificity of the response to a human immunodeficiency virus vaccine
| Autor: | Jennifer L. Maskrey, Marie T. Jelonek, Kathelyn S. Steimer, Barbara J. Potts, Keith W. Higgins, Margaret A. Keller |
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| Rok vydání: | 1996 |
| Předmět: |
medicine.drug_class
Offspring viruses Molecular Sequence Data V3 loop HIV Antibodies HIV Envelope Protein gp120 Monoclonal antibody Epitope Immunoglobulin G Mice Immune system Antibody Specificity Pregnancy medicine Immunology and Allergy Animals Amino Acid Sequence AIDS Vaccines Mice Inbred BALB C Vaccines Synthetic biology virus diseases Antibodies Monoclonal Virology Infectious Diseases Freund's adjuvant Immunology biology.protein Female Antibody Immunity Maternally-Acquired |
| Zdroj: | The Journal of infectious diseases. 174(4) |
| ISSN: | 0022-1899 |
| Popis: | The effect of maternally transferred monoclonal antibody (MAb) on the offspring antibody response to rgp120 SF2 was examined in a murine model. Two MAbs were studied : MAb 83.1, which recognizes a determinant in the V3 loop of gp120 from human immunodeficiency virus-1 (HIV-1) SF2, and MAb 26.2D3, which recognizes a conserved N-terminal region of gp120 from HIV-1 SF2 . Offspring were immunized at 18-21 days of age with 100 μg of rgp120 SF2 in complete Freund's adjuvant. Offspring immunized in the presence of preexisting MAb 83.1 but not MAb 26.2D3 demonstrated inhibition of the IgG anti-V3 response. The total IgG anti-rgp120 SF2 response was not affected by preexisting MAb. Since newborns at risk for HIV may be immunized in the presence of maternal or administered anti-HIV antibody, alternative strategies may be required to circumvent inhibition of the infant's epitope-specific response to HIV immunization by preexisting antibody. |
| Databáze: | OpenAIRE |
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