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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Neutralizing antibodies against two HIV-1 strains in consecutively collected serum samples: cross neutralization and association to HIV-1 related disease.

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97 sera collected during a 10-year period from 10 HIV-1 infected individuals were tested for neutralizing capacity against a virus isolate FICPH-22 obtained from a Danish AIDS patient, and the laboratory strain HTLV-IIIB. Three patterns of serum neutralizing activity were demonstrated: (a) patients developing high neutralizing activity against both HIV strains; (b) patients developing high neutralizing activity against the Danish virus isolate; and (c) patients developing only low titers of neutralizing antibodies (NA) against both HIV strains. The HTLV-IIIB strain was less sensitive to serum neutralization than the FICPH-22 isolate and the appearance of NA against HTLV-IIIB was typically lacking several years behind that against FICPH-22 indicating a broadening of the NA response over time. No difference in clinical outcome was observed comparing patients reaching high titers of NA and patients with low titers. Development of AIDS among patients reaching high titers of NA was preceded by a decline in NA titers, indicating an association of high titers of NA with the healthy carrier state and of declining or low titers of NA with disease progression. The majority of the neutralizing activity was mediated by IgG, but some neutralizing activity was demonstrated in the IgG depleted serum, indicating the presence of additional neutralizing substances in serum.
Translated title of the contributionNeutralizing antibodies against two HIV-1 strains in consecutively collected serum samples: cross neutralization and association to HIV-1 related disease.
Original languageEnglish
JournalScandinavian Journal of Infectious Diseases
Volume24
Issue number1
Pages (from-to)21-28
Number of pages8
ISSN0036-5548
Publication statusPublished - 1992

ID: 32506236