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Immune responses to human immunodeficiency virus (HIV) type 1 induced by canarypox expressing HIV-1MN gp120, HIV-1SF2 recombinant gp120, or both vaccines in seronegative adults. NIAID AIDS Vaccine Evaluation Group.

Abstract
A safety and immunogenicity trial was conducted in vaccinia-immune and vaccinia-naive human immunodeficiency virus (HIV)-uninfected adults who were randomized to receive 10(6) or 10(7) TCID50 of canarypox (ALVAC) vector expressing HIV-1MN gp160 or 10(5.5) TCID50 of ALVAC-rabies virus glycoprotein control at 0 and 1 or 2 months and ALVAC-gp160 or 50 microg of HIV-1SF2 recombinant (r) gp120 in microfluidized emulsion at 9 and 12 months; others received rgp120 at 0, 1, 6, and 12 months. All vaccines were well-tolerated. Neither vaccinia-immune status before vaccination nor ALVAC dose affected HIV immune responses. HIV-1MN and HIV-1SF2 neutralizing antibodies were detected more often (100%) in ALVAC-gp160/rgp120 recipients than in recipients of ALVAC-gp160 (<65%) or rgp120 (89%) alone. ALVAC-gp160/rgp120 also elicited more frequent HIV V3-specific and fusion-inhibition antibodies, antibody-dependent cellular cytotoxicity, lymphoproliferation, and cytotoxic CD8+ T cell activity than did either vaccine alone. Trials with ALVAC expressing additional HIV components and rgp120 are underway.
AuthorsM L Clements-Mann, K Weinhold, T J Matthews, B S Graham, G J Gorse, M C Keefer, M J McElrath, R H Hsieh, J Mestecky, S Zolla-Pazner, J Mascola, D Schwartz, R Siliciano, L Corey, P F Wright, R Belshe, R Dolin, S Jackson, S Xu, P Fast, M C Walker, D Stablein, J L Excler, J Tartaglia, E Paoletti
JournalThe Journal of infectious diseases (J Infect Dis) Vol. 177 Issue 5 Pg. 1230-46 (May 1998) ISSN: 0022-1899 [Print] UNITED STATES
PMID9593008 (Publication Type: Clinical Trial, Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S., Research Support, U.S. Gov't, P.H.S.)
Chemical References
  • AIDS Vaccines
  • ALVAC vaccine
  • HIV Antibodies
  • HIV Envelope Protein gp120
  • Vaccines, Synthetic
  • Viral Vaccines
Topics
  • AIDS Vaccines (adverse effects)
  • Adult
  • Antibody Formation
  • Antibody-Dependent Cell Cytotoxicity
  • CD8-Positive T-Lymphocytes (immunology)
  • HIV Antibodies (biosynthesis, blood)
  • HIV Envelope Protein gp120 (adverse effects, immunology)
  • HIV-1 (immunology)
  • Humans
  • Immunization Schedule
  • Immunization, Secondary
  • Lymphocyte Activation
  • Lymphocytes (immunology)
  • Neutralization Tests
  • Rabies virus (immunology)
  • Time Factors
  • Vaccines, Synthetic (adverse effects)
  • Viral Vaccines (adverse effects)

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