home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload Trio 2
/
Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
/
dir26
/
med9409d.zip
/
M9490653.TXT
< prev
next >
Wrap
Text File
|
1994-09-24
|
2KB
|
35 lines
Document 0653
DOCN M9490653
TI Superantigens activate HIV-1 gene expression in monocytic cells.
DT 9411
AU Fuleihan R; Trede N; Chatila T; Geha RS; Division of Immunology,
Children's Hospital, Boston,; Massachusetts.
SO Clin Immunol Immunopathol. 1994 Sep;72(3):357-61. Unique Identifier :
AIDSLINE MED/94340810
AB Binding of superantigens to MHC class II molecules results in
transduction of biochemical signals leading to cellular activation and
gene expression. We demonstrate that the staphylococcal superantigens
toxic shock syndrome toxin-1 (TSST-1) and staphylococcal enterotoxin A
(SEA) activate HIV-1-LTR-driven transcription of chloramphenicol acetyl
transferase in the human monocytic cell line THP-1. Induction of
HIV-1-LTR-driven transcription in THP-1 cells by superantigens was
associated with the induction of nuclear factor-kappa B DNA-binding
activity. Superantigens also increased viral protein secretion from the
granulocyte-macrophage colony-stimulating factor-pretreated chronically
infected human monocytic cell line U1. Induction of HIV-1 gene
expression in monocytic cells by superantigens occurred via tumor
necrosis factor-alpha-dependent and -independent mechanisms. Our results
suggest that superantigens and other MHC class II ligands may activate
HIV-1 gene expression in monocytes/macrophages.
DE Base Sequence Cell Line Electrophoresis/METHODS Histocompatibility
Antigens Class II/IMMUNOLOGY Human HIV Core Protein p24/BIOSYNTHESIS
HIV Infections/*IMMUNOLOGY/*MICROBIOLOGY HIV Long Terminal Repeat
HIV-1/*GENETICS/IMMUNOLOGY Molecular Sequence Data
Monocytes/MICROBIOLOGY NF-kappa B/PHYSIOLOGY Superantigens/*IMMUNOLOGY
Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S.
Transfection/GENETICS Tumor Necrosis Factor/PHYSIOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).