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1996-03-09
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Document 0553
DOCN M9650553
TI Enhanced susceptibility to human immunodeficiency virus infection in
CD4+ T lymphocytes genetically deficient in CD43.
DT 9605
AU Srinivas RV; Su T; Trimble LA; Lieberman J; Ardman B; Department of
Infectious Diseases, St. Jude Children's Research; Hospital, Memphis,
Tennessee 38105, USA.
SO AIDS Res Hum Retroviruses. 1995 Sep;11(9):1015-21. Unique Identifier :
AIDSLINE MED/96089208
AB CD43 is a cell surface sialoglycoprotein expressed by most cells of
hematopoietic origin, including all T lymphocytes. Elimination of CD43
expression by gene targeting in the CEM T cell line results in its
increased homotypic adhesion and binding to HIV-1 gp120. Here we report
that the CD43-negative CEM cells show increased susceptibility to HIV-1
infection and increased viral replication compared with the parental
CD43+ CEM cell line. Increased HIV-1 replication also was observed in
CEM cells with diminished CD43 expression secondary to functional
inactivation of a single CD43 allele. The CD43- CEM cells were more
susceptible to HIV-1-induced cytopathicity than their CD43+
counterparts. HIV-1 replication also was increased in the CD43- CEM
cells after transfection with the infectious HIV molecular clone pNL4-3.
These data suggest that factors that diminish CD43 expression on T
lymphocytes may enhance their susceptibility to HIV-1 infection.
DE Antigens, CD/GENETICS/*PHYSIOLOGY Cell Line Cell Survival
Cytopathogenic Effect, Viral/IMMUNOLOGY CD4-Positive
T-Lymphocytes/*IMMUNOLOGY/*VIROLOGY Gene Targeting Human HIV
Infections/*ETIOLOGY/IMMUNOLOGY HIV-1/PHYSIOLOGY/*PATHOGENICITY
Kinetics Sialoglycoproteins/*DEFICIENCY/GENETICS/IMMUNOLOGY Support,
Non-U.S. Gov't Support, U.S. Gov't, P.H.S. Virus Replication JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).