Characterization of a Noncytopathic HIV-2 Strain with Unusual Effects on CD4 Expression

A new isolate of the human immunodeficiency virus type 2, designated HIV-2$_{\text{UC}1}$, was recovered from an Ivory Coast patient with normal lymphocyte numbers who died with neurologic symptoms. Like some HIV-1 isolates, HIV-2$_{\text{UC}1}$ grows rapidly to high titers in human peripheral blood...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1988-06, Vol.240 (4858), p.1522-1525
Main Authors: Evans, Louise A., Moreau, Jacques, Odehouri, Koudou, Legg, Harold, Barboza, Ashley, Cheng-Mayer, Cecilia, Levy, Jay A.
Format: Article
Language:English
Subjects:
Acquired immune deficiency syndrome
Acquired Immunodeficiency Syndrome - immunology
Acquired Immunodeficiency Syndrome - microbiology
AIDS
AIDS/HIV
Antigens
Antigens, Differentiation, T-Lymphocyte - genetics
Biological and medical sciences
Blood
Cell Line
Cell lines
Cote d'Ivoire
Cultured cells
Fundamental and applied biological sciences. Psychology
HIV
HIV (Viruses)
HIV - classification
HIV - immunology
HIV - pathogenicity
HIV 1
HIV 2
Human immunodeficiency virus 1
Human immunodeficiency virus 2
Humans
Infections
Lymphocytes
Lymphocytes - immunology
Lymphocytes - microbiology
Medical research
Microbiology
Monocytes - immunology
Monocytes - microbiology
Retroviruses
Systematics
T cells
T lymphocytes
Viral research
Virology
Virus research
Viruses
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Summary:A new isolate of the human immunodeficiency virus type 2, designated HIV-2$_{\text{UC}1}$, was recovered from an Ivory Coast patient with normal lymphocyte numbers who died with neurologic symptoms. Like some HIV-1 isolates, HIV-2$_{\text{UC}1}$ grows rapidly to high titers in human peripheral blood lymphocytes and macrophages and has a differential ability to productively infect established human cell lines of lymphocytic and monocytic origin. Moreover, infection with this isolate also appears to involve the CD4 antigen. However, unlike other HIV isolates, HIV-2$_{\text{UC}1}$ does not cause cytopathic effects in susceptible T cells nor does it lead to loss of CD4 antigen expression on the cell surface. These results indicate that HIV-2 may be found in individuals with neurologic symptoms and that the biological characteristics of this heterogeneous subgroup can differ from those typical of HIV-1.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.2836951