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M94A0260.TXT
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1994-10-08
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Document 0260
DOCN M94A0260
TI Treatment of human immunodeficiency virus-infected lymphocytes with
cationized human immunoglobulins.
DT 9412
AU Pardridge WM; Buciak J; Yang J; Diagne A; Department of Medicine,
University of California, School of; Medicine, Los Angeles 90024.
SO J Infect Dis. 1994 Sep;170(3):563-9. Unique Identifier : AIDSLINE
MED/94358488
AB Hyperimmune immunoglobulins from human immunodeficiency virus
(HIV)-infected persons may inhibit intracellular viral replication if
the HIV immunoglobulins (HIVIG) are delivered to intracellular spaces
where the virus replicates. This study examines the hypothesis that
cationized forms of HIVIG undergo enhanced absorptive-mediated
endocytosis into cells and inhibit HIV replication. HIVIG and nonimmune
human intravenous immunoglobulin (IVIG) were cationized with
hexamethylenediamine to an isoelectric point (pI) > 9.5. Cationization
markedly increased the binding and endocytosis of HIVIG and IVIG by
human peripheral blood lymphocytes (PBL). Cationized HIVIG and IVIG (250
micrograms/mL) resulted in a 90% inhibition in p24 released to the
medium in HIV-1-infected human PBL. The study demonstrates that
cationization of human immunoglobulin preparations, such as HIVIG and
IVIG, markedly increases the endocytosis of immunoglobulin and the
inhibition of HIV-1 replication in human PBL.
DE Cations Diamines DNA/BIOSYNTHESIS Electrophoresis, Polyacrylamide Gel
Endocytosis Human HIV-1/DRUG EFFECTS/IMMUNOLOGY/*PHYSIOLOGY
Immunoglobulins, Intravenous/ISOLATION & PURIF/METABOLISM/
*PHARMACOLOGY Iodine Radioisotopes Isoelectric Focusing Kinetics
Lymphocytes/IMMUNOLOGY/*MICROBIOLOGY Support, U.S. Gov't, P.H.S.
Thymidine/METABOLISM Tritium Virus Replication/*DRUG EFFECTS JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).