Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-7-27
pubmed:abstractText
The safety and the immunogenicity of a recombinant canarypox live vector expressing the human immunodeficiency virus type 1 (HIV-1) gp160 gene from the MN isolate, ALVAC-HIV (vCP125), followed by booster injections of a soluble recombinant hybrid envelope glycoprotein MN/LAI (rgp160), were evaluated in vaccinia-immune, healthy adults at low risk for acquiring HIV-1 infection. Volunteers (n = 20) received vCP125 (10(6) TCID50) at 0 and 1 month, followed randomly by rgp160 formulated in alum or in Freund's incomplete adjuvant (FIA) at 3 and 6 months. Local and systemic reactions were mild or moderate and resolved within the first 72 hr after immunization. No significant biological changes in routine tests were observed in any volunteer. Two injections of vCP125 did not elicit antibodies. Neutralizing antibodies (NA) against the HIV-1 MN isolate were detected in 65 and 90% of the subjects after the first and the second rgp 160 booster injections, respectively. Six months after the last boost, only 55% were still positive. Seven of 14 sera with the highest NA titers against MN weakly cross-neutralized the HIV-1 SF2 isolate; none had NA against the HIV-1 LAI or against a North American primary isolate. Specific lymphocyte T cell proliferation to rgp 160 was detected in 25% of the subjects after vCP125 and in all subjects after the first booster injection and 12 months after the first injection. An envelope-specific cytotoxic lymphocyte activity was found in 39% of the volunteers and characterized for some of them as CD3+, CD8+, MHC class I restricted. The adjuvant formulation did not influence significantly the immune responses.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0889-2229
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
N
pubmed:pagination
373-81
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed-meshheading:7598771-AIDS Vaccines, pubmed-meshheading:7598771-Acquired Immunodeficiency Syndrome, pubmed-meshheading:7598771-Adult, pubmed-meshheading:7598771-Animals, pubmed-meshheading:7598771-Avipoxvirus, pubmed-meshheading:7598771-CD4 Lymphocyte Count, pubmed-meshheading:7598771-CD4-CD8 Ratio, pubmed-meshheading:7598771-CD8-Positive T-Lymphocytes, pubmed-meshheading:7598771-Canaries, pubmed-meshheading:7598771-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:7598771-Female, pubmed-meshheading:7598771-Gene Products, env, pubmed-meshheading:7598771-HIV Antibodies, pubmed-meshheading:7598771-HIV Envelope Protein gp160, pubmed-meshheading:7598771-HIV Infections, pubmed-meshheading:7598771-HIV Seronegativity, pubmed-meshheading:7598771-Humans, pubmed-meshheading:7598771-Immunization, Secondary, pubmed-meshheading:7598771-Lymphocyte Count, pubmed-meshheading:7598771-Male, pubmed-meshheading:7598771-Middle Aged, pubmed-meshheading:7598771-Protein Precursors, pubmed-meshheading:7598771-Time Factors, pubmed-meshheading:7598771-Vaccines, Synthetic
pubmed:year
1995
pubmed:articleTitle
A prime-boost approach to HIV preventive vaccine using a recombinant canarypox virus expressing glycoprotein 160 (MN) followed by a recombinant glycoprotein 160 (MN/LAI). The AGIS Group, and l'Agence Nationale de Recherche sur le SIDA.
pubmed:affiliation
Hôpital de l'Institut Pasteur, Paris, France.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial, Multicenter Study