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M9650472.TXT
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1996-03-09
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Document 0472
DOCN M9650472
TI Blood monocytes from most human immunodeficiency virus type 1-infected
patients do not carry proviral DNA.
DT 9605
AU Shen Y; Rudnik J; Cassol S; Drouin J; Cameron W; Izaguirre CA; Filion
LG; Department of Microbiology, University of Ottawa General; Hospital,
Ontario, Canada.
SO Clin Diagn Lab Immunol. 1994 Sep;1(5):531-7. Unique Identifier :
AIDSLINE MED/96050867
AB In blood, the CD4+ T cells of patients with human immunodeficiency virus
type 1 (HIV-1) harbor HIV-1; however, whether the CD4+ blood monocytes
carry the virus is controversial. Tissue macrophages are known to be
infected. To determine in blood monocytes from HIV-1-seropositive
patients contain HIV-1, we separated monocytes and T-cell subsets by
using monoclonal antibodies bound to magnetic beads and by monocyte
adherence to glass. Monocytes were cultured with macrophage
colony-stimulating factor, granulocyte-macrophage colony-stimulating
factor, and interleukin-3. After 14 days in culture, cells were analyzed
for the presence of HIV-1 antigen and multinucleated giant cells (MGCs).
Freshly isolated cell subsets were analyzed for HIV-1 proviral DNA by
PCR with modified env (SK68i and SK69i2) and gag (SK145i and SK150)
primers. We found that (i) monocytes cultured without depletion of CD4+
T cells (11 of 11 patients) were HIV-1 antigen positive and showed
dramatically increased spontaneous formation of MGCs (ii) monocytes
cultured after depletion of CD4+ T cells (three experiments) were HIV-1
antigen negative and showed markedly decreased MGC formation, and (iii)
in specimens from 14 patients subsequently analyzed by PCR, purified
CD4+ T cells were positive for HIV-1 proviral DNA in all patients. In 11
of 14 patients (79%), the monocyte fractions were HIV-1 proviral DNA
negative, while in the remaining 3 patients, the monocytes were positive
for HIV-1 proviral DNA. In conclusion, the major reservoir for HIV-1
infection in human peripheral blood is the CD4+ T cell (14 of 14
cases).(ABSTRACT TRUNCATED AT 250 WORDS)
DE Acquired Immunodeficiency Syndrome/*BLOOD Antigens, Viral/IMMUNOLOGY
Base Sequence Cells, Cultured/IMMUNOLOGY/VIROLOGY CD4-Positive
T-Lymphocytes/IMMUNOLOGY/VIROLOGY CD8-Positive
T-Lymphocytes/IMMUNOLOGY/VIROLOGY DNA, Viral/ANALYSIS Human
HIV-1/GENETICS/*IMMUNOLOGY Magnetics Microspheres Molecular Sequence
Data Monocytes/IMMUNOLOGY/*VIROLOGY Polymerase Chain Reaction
Support, Non-U.S. Gov't T-Lymphocyte Subsets/IMMUNOLOGY/VIROLOGY
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).