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M94A0730.TXT
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1994-10-21
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Document 0730
DOCN M94A0730
TI Detection of HIV-1(HTLV-I) pseudotypes.
DT 9412
AU Lawson V; Doultree J; Lee JY; Marshall J; McPhee D; Macfarlane Burnet
Centre for Medical Research, NCHVR, Fairfield,; Vic.
SO Annu Conf Australas Soc HIV Med. 1993 Oct 28-30;5:107 (poster no. 65).
Unique Identifier : AIDSLINE ASHM5/94348925
AB The mixing of envelope glycoproteins in cells infected with two viruses
may result in the formation of pseudotypes. Several studies have
indicated that human immunodeficiency virus (HIV) may form pseudotypes
with several viral species including human T-cell leukemia virus
(HTLV-I), murine amphotropic virus and HIV-2. The resulting viral
species have been shown to have an expanded host range which reflects
the tropism of the acquired glycoproteins and results in more aggressive
disease progression. In the majority of these studies pseudotypes have
been artificially developed and the evidence for their formation based
almost entirely on indirect immunological evidence. We present here a
novel immunoprecipitation technique for the detection of HIV-1(HTLV-I)
pseudotypes arising from HIV-1 infection of the HTLV-I transformed MT-2
cell line, as well as a technique for direct detection of pseudotypes
which involves immune labelling of viral envelope glycoproteins in
association with thin section electron microscopy. The HTLV-I gp46
surface glycoprotein was found in association with HIV-I core proteins
in mature virus particles thus confirming previous findings and directly
demonstrating pseudotype particles.
DE Cell Line, Transformed Human HIV Infections/MICROBIOLOGY
HIV-1/CLASSIFICATION/*PHYSIOLOGY/PATHOGENICITY
HTLV-I/CLASSIFICATION/*PHYSIOLOGY/PATHOGENICITY Precipitin Tests
Virulence/PHYSIOLOGY MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).