home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload Trio 2
/
Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
/
dir26
/
med9408a.zip
/
M9480210.TXT
< prev
next >
Wrap
Text File
|
1994-08-09
|
3KB
|
45 lines
Document 0210
DOCN M9480210
TI Biological, serological, and genetic characterization of HIV-1 subtype E
isolates from northern Thailand.
DT 9410
AU Ichimura H; Kliks SC; Visrutaratna S; Ou CY; Kalish ML; Levy JA;
Department of Medicine, School of Medicine, University of; California,
San Francisco 94143-0128.
SO AIDS Res Hum Retroviruses. 1994 Mar;10(3):263-9. Unique Identifier :
AIDSLINE MED/94289064
AB Twenty-three HIV-1 isolates were recovered from PBMCs from 26
HIV-1-seropositive individuals in northern Thailand. The viruses grew
readily in human PBMCs but only 7 of 17 (41.2%) and 5 of 17 (29.4%)
replicated and only at a low level in primary macrophages and in
established T cell lines, respectively. By immunoblot assays, sera from
Thai subjects were strongly reactive with gp120 from a Thailand isolate,
moderately reactive with a Rwandan isolate, and weakly reactive with a
North American strain. These three viruses represent, respectively,
examples of subtypes E, A, and B as classified by the sequences of the
envelope region. Serological assays indicated that broadly reactive
rather than type-specific neutralizing activity was detected among these
northern Thai sera. The majority of the sera (approximately 75%)
neutralized a representative Thailand isolate and the Rwanda isolate but
only 55% neutralized the North American strain. However, the difference
was not statistically significant. The genetic analyses indicated that
nearly all the Thai isolates were highly homogeneous and distinct from
the North American/European consensus sequence (subtype B); they belong
to subtype E. This is the first report providing biological,
serological, and genetic characterization of HIV-1 strains from
Thailand. The findings suggest these viruses were recently introduced
into the country and that serological evaluation of viral strains needs
to be considered along with genetic subtyping when developing an HIV-1
vaccine.
DE Adult Amino Acid Sequence Base Sequence Cell Line DNA, Viral Female
Human HIV Envelope Protein gp120/CHEMISTRY/IMMUNOLOGY HIV
Seropositivity/*MICROBIOLOGY HIV-1/*CLASSIFICATION/ISOLATION & PURIF
Immunoblotting Male Molecular Sequence Data Peptide
Fragments/CHEMISTRY/IMMUNOLOGY Sequence Homology, Amino Acid
Serotyping Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S.
Thailand JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).