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1996-03-09
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Document 0127
DOCN M9650127
TI Relation between changes in cellular load, evolution of viral phenotype,
and the clonal composition of virus populations in the course of human
immunodeficiency virus type 1 infection.
DT 9605
AU Koot M; van 't Wout AB; Kootstra NA; de Goede RE; Tersmette M;
Schuitemaker H; Department of Clinical Viro-Immunology, Netherlands Red
Cross; Blood Transfusion Service, University of Amsterdam, Netherlands.
SO J Infect Dis. 1996 Feb;173(2):349-54. Unique Identifier : AIDSLINE
MED/96162092
AB The relationship between the evolution of human immunodeficiency virus
type 1 (HIV-1) biologic phenotype, changes in the proportion of infected
peripheral blood mononuclear cells, and the relative contribution of
non-syncytium-inducing (NSI) and syncytium-inducing (SI) HIV-1 variants
to virus load was studied during the course of HIV-1 infection. In 65
HIV-1-infected subjects, the proportion of infected CD4 T cells was
higher in persons who carried SI variants. Longitudinal studies revealed
that the emergence of SI HIV-1 variants can occur at relatively low
numbers of HIV-1-infected cells. Emergence of SI variants frequently
coincided with an increase of virus load due to an expansion of both NSI
and SI variants, although the contribution of SI viruses to the total
virus population significantly increased with time after SI phenotype
conversion. These data indicate that NSI to SI phenotype conversion,
rather than resulting from high virus load, is part of the sequence of
events that leads to increased virus load and CD4 cell depletion.
DE Cross-Sectional Studies CD4 Lymphocyte Count CD4-Positive
T-Lymphocytes/*VIROLOGY Giant Cells/VIROLOGY Human HIV
Infections/IMMUNOLOGY/*VIROLOGY HIV-1/*CLASSIFICATION/ISOLATION & PURIF
Longitudinal Studies Phenotype Support, Non-U.S. Gov't JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).