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1996-02-26
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Document 0197
DOCN M9620197
TI Broadly neutralizing, MN-like PND-directed antibodies in Rwandan
children with long-term HIV1 infection.
DT 9602
AU Fraisier C; Van de Perre P; Lepage P; Hitimana DG; Karita E; Desgranges
C; INSERM U271, Lyon, France.
SO Res Virol. 1995 May-Jun;146(3):201-10. Unique Identifier : AIDSLINE
MED/96075770
AB Sera from 11 perinatally HIV1-infected Rwandan children with prolonged
survival were tested in vitro for the presence of neutralizing
antibodies against different HIV1 strains. These 11 sera from long
survivor (LS) children were compared with 16 sera from Rwandan children
with AIDS. Sera from HIV1-infected children exhibited the greatest
neutralizing activity against HIV1MN cell-free infection. They also
inhibited HIV1RII and HIV1LAI cell-free infection with lower titres.
Higher neutralization titres were observed in sera from LS compared to
the AIDS group, with a significant difference for HIV1MN and HIV1LAI
strains. Sera from LS children also inhibited syncytium formation
induced by HIV1MN-infected cells with higher titres than AIDS children.
Sera from the HIV1-infected children showed reactivity to the HIV1MN V3
peptide, as well as to both the US/European and the African consensus V3
peptides. Higher reactivity was observed in sera from LS than from AIDS
children, and the difference was significant toward the African
consensus peptide. The LS children also had significantly higher V3MN
IgG avidity than the AIDS children. These data support the notion that
the humoral response to the V3 domain, associated with a broadly
neutralizing activity, may be an important factor in the prolonged
survival of these children. The specificity against HIV1MN also suggests
that an antigenically MN-related strain may be prevalent in Rwanda, and
that an MN-related principal neutralizing domain sequence could be an
important determinant for candidate vaccines in this part of Africa.
DE Amino Acid Sequence Cell Line Child Child, Preschool Cytopathogenic
Effect, Viral Female Giant Cells/VIROLOGY Human HIV
Antibodies/*BLOOD/IMMUNOLOGY HIV Envelope Protein gp120/IMMUNOLOGY HIV
Infections/*IMMUNOLOGY HIV-1/*IMMUNOLOGY IgG/IMMUNOLOGY Infant
Molecular Sequence Data Neutralization Tests Peptide
Fragments/IMMUNOLOGY Rwanda Support, Non-U.S. Gov't Survivors
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).