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M9620201.TXT
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1996-02-26
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Document 0201
DOCN M9620201
TI Inhibition of in vitro HIV infection by trinitrophenyl-protein
conjugates.
DT 9602
AU Matsiota-Bernard P; Guetard D; Rame V; Montagnier L; Avrameas S; Unite
d'Immunocytochimie, Institut Pasteur, Paris, France.
SO Res Immunol. 1995 Feb;146(2):109-17. Unique Identifier : AIDSLINE
MED/96100667
AB Levels of natural antibodies (NAb) with high anti-trinitrophenyl (TNP)
activity are increased during human immunodeficiency virus (HIV)
infection. The aim of the present study was to examine the anti-HIV
effect of natural anti-TNP antibodies, as well as that of their internal
image, TNP antigen, on HIV infection in vitro. The results obtained with
anti-TNP antibodies, as assessed by syncytia formation, were variable,
although they demonstrated an inhibitory effect. In contrast, using RT
activity assay plus evaluation of syncytia formation and the viral
cytopathic effect, we found that bovine serum albumin (BSA) bearing
different TNP groups was able to inhibit HIV infection of peripheral
mononuclear cells and T4 cell lines without affecting cell metabolism or
proliferation. BSA alone was devoid of activity; the antiviral effect
depended on TNP substitution of the BSA molecule, and passage through an
anti-TNP immunoadsorbent abolished this effect. The mechanism by which
TNP exerts this antiviral effect is unclear. Antigenic epitopes may be
shared by HIV and TNP, since monoclonal antibodies directed against
various HIV proteins reacted with TNP in an enzyme immunoassay. TNP-BSA,
however, did not bind to the CD4 receptor.
DE Animal Antibodies, Monoclonal/PHARMACOLOGY Antiviral
Agents/*PHARMACOLOGY Cattle Cells, Cultured CD4-Positive
T-Lymphocytes Human HIV Infections/*IMMUNOLOGY/PREVENTION & CONTROL
Immune Sera/PHARMACOLOGY Immunity, Natural/*IMMUNOLOGY Leukocytes,
Mononuclear Serum Albumin/CHEMISTRY/*IMMUNOLOGY/PHARMACOLOGY
Trinitrobenzenes/CHEMISTRY/*IMMUNOLOGY/PHARMACOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).