title: Longitudinal study of serum neutralization of HIV-1 in infected plasma donors.
abstract: Earlier studies provided suggestive evidence about the effectiveness of passive immunotherapy for AIDS patients using plasma donated by healthy HIV-1 infected individuals and revealed beneficial effects of plasmapheresis for the immune system of the donors. In this study, anti-HIV-1 neutralizing activity in 31 healthy HIV-1 infected donors of plasma participating in a passive immunotherapy study was investigated as a function of time. Average studied period was 33 months. Using the highly cytopathic HIV-1 NDK strain and MOLT4 cells, it was shown by means of syncytia formation inhibition assay and polyclonal HIV-1 antigen-capture assay that viral neutralizing titers tend either to remain unchanged or increase over time. These findings support the notion that the immune system is not affected adversely in HIV-1 infected plasma donors and lend further support to the feasibility of passive immunotherapy for AIDS patients.
authors.affiliation: Department of Haematology, University of Cambridge, Cambridge, UK.
authors.forename: A V
authors.initials: AV
authors.lastname: Abelian
authors.forename: S
authors.initials: S
authors.lastname: Saurya
authors.forename: S
authors.initials: S
authors.lastname: Ash
authors.forename: A
authors.initials: A
authors.lastname: Karpas
mesh_terms: D001782:Blood Donors; D002353:Carrier State / Q000276:immunology; D015483:HIV Antibodies / Q000276:immunology*; D015658:HIV Infections / Q000276:immunology*; D015497:HIV-1 / Q000276:immunology*; D006801:Humans; D008137:Longitudinal Studies; D009500:Neutralization Tests; D010956:Plasmapheresis
chemical_list: D015483:HIV Antibodies