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M9650473.TXT
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1996-03-09
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Document 0473
DOCN M9650473
TI Monokine-mediated increase in human immunodeficiency virus type 1
expression in chronically infected promonocyte- and T-cell-derived
lines.
DT 9605
AU Ho WZ; Tomassini N; Cherukuri R; Shun-D G; Song L; Lee HR; Douglas SD;
Department of Pediatrics, Children's Hospital of Philadelphia,;
University of Pennsylvania Medical School 19104, USA.
SO Clin Diagn Lab Immunol. 1994 Sep;1(5):517-25. Unique Identifier :
AIDSLINE MED/96050865
AB The ACH-2 cell clone derived from a human T-cell line and chronically
infected with human immunodeficiency virus 1 (HIV-1) and the U1 cell
clone derived from a human promonocyte cell line and also chronically
infected with HIV-1 produce HIV-1 in a response to stimulation with
monokine-enriched supernatants prepared from highly purified populations
of peripheral blood-derived human monocytes. Monokine-mediated
expression of HIV-1 in these cell lines resulted in augmented virus
production reflected by increases in reverse transcriptase (RT)
activity, production of p24 antigen, and synthesis of major viral
proteins. Examination of the cells by electron microscopy revealed
numerous HIV-1 virions in the cells treated with the supernatants. This
stimulation of virus production by monokine-enriched supernatants
resulted in approximately 100-fold increases in RT activity and p24
antigen expression in comparison with those in untreated U1 and ACH-2
cells. Absorption of monokine-enriched supernatants with rabbit
anti-tumor necrosis factor alpha antibody removed most, but not all, of
the induced HIV-1 RT activity and p24 antigen expression in U1 and ACH-2
cell lines, suggesting that tumor necrosis factor alpha in the
monokine-enriched supernatants is a major factor in the induction of
HIV-1 expression in these cells.
DE Adult Cell Line/IMMUNOLOGY/ULTRASTRUCTURE/VIROLOGY Human
HIV-1/*IMMUNOLOGY Interleukin-1/METABOLISM Interleukin-6/METABOLISM
Macrophages/IMMUNOLOGY/METABOLISM/VIROLOGY Microscopy, Electron
Monocytes/IMMUNOLOGY/METABOLISM/*VIROLOGY Monokines/*PHARMACOLOGY
Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S.
T-Lymphocytes/IMMUNOLOGY/METABOLISM/*VIROLOGY Tumor Necrosis
Factor/METABOLISM JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).