Abstract
Following immunization of healthy adult volunteers with baculovirus-derived HIV-1 gp160 vaccine (rgp160), we measured lymphocyte proliferation to rgp160, the V3 loop peptide of gp160, control proteins, and phytohaemagglutinin. Four persons received injections of 40 micrograms or 80 micrograms of rgp160 vaccine at times 0, and 1, 6 and 18 months; one additional volunteer received only three injections of vaccine. Vaccination with rgp160 induced lymphocyte proliferative responses to rgp160, but not to V3 loop peptide. Repeated injection of rgp160 even at low doses induced a cellular immune response which was not attributable to T-cell recognition of the V3 loop peptide.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adolescent
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Adult
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Blotting, Western
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Enzyme-Linked Immunosorbent Assay
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Gene Products, env / genetics
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Gene Products, env / immunology*
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HIV Envelope Protein gp160
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HIV-1 / immunology*
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Humans
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Immunization
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Lymphocyte Activation / drug effects
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Lymphocyte Activation / immunology*
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Middle Aged
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Mitogens / pharmacology
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Protein Precursors / genetics
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Protein Precursors / immunology*
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Recombinant Proteins / genetics
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Recombinant Proteins / immunology
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Stimulation, Chemical
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T-Lymphocytes, Helper-Inducer / drug effects
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T-Lymphocytes, Helper-Inducer / immunology
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Vaccines, Synthetic / administration & dosage*
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Viral Vaccines / pharmacology*
Substances
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Gene Products, env
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HIV Envelope Protein gp160
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Mitogens
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Protein Precursors
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Recombinant Proteins
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Vaccines, Synthetic
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Viral Vaccines