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1996-02-26
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Document 0420
DOCN M9620420
TI Nucleotide changes in oxidatively stressed lymphocytes.
DT 9602
AU Palace GP; Lawrence DA; Department of Pharmacology and Toxicology,
Albany Medical; College, NY 12208, USA.
SO J Biochem Toxicol. 1995 Jun;10(3):137-42. Unique Identifier : AIDSLINE
MED/96073320
AB Similar to HIV-1-induced suppression of thymus-derived lymphocytes (T
cells), oxidatively stressed T cells show inhibited DNA synthesis and
proliferation. The influence of oxidative stress on nucleotide pools was
explored using 3H-uridine addition to OKT3-stimulated peripheral blood
lymphocytes. The cells were preincubated and stimulated in the presence
of 1 mM buthionine sulfoximine to inhibit GSH synthesis. This treatment
gave rise to a significant reduction in dUDP and TTP biosynthesis
following 18-32 hours stimulation, indicating possible impairment of
ribonucleotide reductase activity.
DE Cell Cycle Cells, Cultured Chromatography, High Pressure Liquid
Deoxyuracil Nucleotides/BLOOD Enzyme Inhibitors/PHARMACOLOGY
Glutathione/BLOOD Human Lymphocyte Transformation
Lymphocytes/IMMUNOLOGY/*METABOLISM Methionine Sulfoximine/ANALOGS &
DERIVATIVES/PHARMACOLOGY Muromonab-CD3/IMMUNOLOGY Nucleotides/*BLOOD
Oxidative Stress/*PHYSIOLOGY Support, U.S. Gov't, P.H.S. Thymine
Nucleotides/BLOOD Uridine/BLOOD JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).