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M9480209.TXT
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1994-08-09
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Document 0209
DOCN M9480209
TI Genetic analysis of HIV-1 during rapid progression to AIDS in an
apparently healthy man.
DT 9410
AU Oka S; Ida S; Shioda T; Takebe Y; Kobayashi N; Shibuya Y; Ohyama K;
Momota K; Kimura S; Shimada K; Department of Infectious Diseases,
University of Tokyo, Japan.
SO AIDS Res Hum Retroviruses. 1994 Mar;10(3):271-7. Unique Identifier :
AIDSLINE MED/94289065
AB We encountered a case of HIV-1 infection in a previously healthy man,
which was characterized by rapid progression to AIDS and death within 7
months in association with high levels of antigenemia throughout the
clinical course and no humoral immune response for at least 6 months.
Genetic changes of the third variable domain (V3) of the envelope gene
of HIV-1 in serum samples were analyzed at four time points during his
rapid clinical course. The nucleotide changes were confined to a maximum
of three substitutions among 105 nucleotides of the V3 region. A major
population of the viral clones in this patient showed one amino acid
substitution from aspartic acid (a negatively charged amino acid) to
lysine (a positively charged amino acid) at position 30 from the first
cysteine of the V3 loop. This substitution was thought to be associated
with phenotypic changes, and viruses with this sequence in the V3 region
had a strong syncytium-inducing ability in MT-4 cells. It appears that
the lack of a humoral immune response accelerated disease progression in
our patient and a genetic change that appeared to produce a phenotypic
change occurred at an early stage of the disease.
DE Acquired Immunodeficiency Syndrome/IMMUNOLOGY/*MICROBIOLOGY/
*PHYSIOPATHOLOGY Adult Base Sequence Case Report Cell Line DNA,
Viral Human HIV Seropositivity/MICROBIOLOGY
HIV-1/*GENETICS/IMMUNOLOGY Male Molecular Sequence Data Polymerase
Chain Reaction Sequence Homology, Nucleic Acid Support, Non-U.S. Gov't
Time Factors Variation (Genetics) JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).