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1994-10-25
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Document 3271
DOCN M94A3271
TI Biological properties of HIV-1 strains occurring in the Ukraine.
DT 9412
AU Antonenko S; Barbasheva E; Green E; Lujlchujk M; Persidsky Y; Frolov A;
Scientific Research Institute of Epidemiology and Infectious; Diseases,
Kiev, Ukraine.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):114 (abstract no. PA0077). Unique
Identifier : AIDSLINE ICA10/94369304
AB OBJECTIVE: To study biological properties of HIV isolated from a viruses
carrier in the Ukraine. METHODS: Fluorescent antibody technique, ELISA
of HIV-1 p24 antigen of the culture supernatant, RT-activity, electron
microscopy, FCR, immunohistochemical characterization of native Nef from
diverse isolates, using a panel of monoclonal antibodies against
recombinant HIV-1 Nef protein (was a gift from Dr. V. Ovod, University
of Tampere, Finland). RESULTS: 23 HIV-1 strains were isolated from
peripheral blood lymphocytes of 45 HIV-infected persons in different
regions of the Ukraine. 23 isolates of HIV-1 belonged to the slow/low
type and had a low and unstable replication potential in MT-4 cell line.
Long-term propagation of this strains did not result in any increase of
their replicative activity. 7 isolates was thought to the rapid/high
type and had a high infectivity, broad spectrum of cell tropism (MT-4,
H-9, U-937, CEM cells), high levels of RT and F24 HIV antigen. The
capacity to form syncytia was found not only in the rapid/high type
strains but also in the majority of slow/low strains. A difference is
detected in the immunohistochemical reactivity of murine monoclonal
antibodies with Nef protein expressed by different isolates in MT-4
cells. CONCLUSIONS: Both variants of HIV-1 reported in the literature:
slow/low and rapid/high types were detected among the strains isolated
from citizens of the Ukraine with asymptomatic infections and with
clinical manifestations of disease.
DE Antibodies, Monoclonal Gene Products, nef/IMMUNOLOGY Human HIV
Antibodies HIV Core Protein p24/METABOLISM HIV
Infections/*MICROBIOLOGY HIV-1/IMMUNOLOGY/*ISOLATION & PURIF/PHYSIOLOGY
Immunohistochemistry Lymphocytes/MICROBIOLOGY Reverse
Transcriptase/METABOLISM Ukraine Virus Replication MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).