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M9620490.TXT
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1996-02-26
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Document 0490
DOCN M9620490
TI N-acetylcysteine enhances antibody-dependent cellular cytotoxicity in
neutrophils and mononuclear cells from healthy adults and human
immunodeficiency virus-infected patients.
DT 9602
AU Roberts RL; Aroda VR; Ank BJ; Department of Pediatrics, University of
California, Los Angeles,; USA.
SO J Infect Dis. 1995 Dec;172(6):1492-502. Unique Identifier : AIDSLINE
MED/96083493
AB Patients with AIDS have decreased levels of the intracellular
antioxidant, glutathione, in their circulating lymphocytes and plasma.
N-acetylcysteine (NAC) increases intracellular stores of glutathione and
has direct antioxidant properties. In this study, the effects of
glutathione and NAC on the cytotoxicity of neutrophils and mononuclear
cells were tested using cells from healthy controls and human
immunodeficiency virus (HIV)-infected patients. NAC (1 and 5 mM)
enhanced the antibody-dependent cellular cytotoxicity (ADCC) of
neutrophils from healthy adult controls and HIV-infected adults and
children. The antineoplastic drug, 1,3 bis(2-chloroethyl)-1-nitrosourea
(BCNU), which depletes intracellular glutathione, inhibited the ADCC of
neutrophils; the addition of NAC partially reversed this inhibition.
Similar effects of BCNU and NAC were seen when the cytotoxicity of
mononuclear cells was tested using CEM tumor cells bearing the HIV gp120
antigen as targets. Thus, NAC enhances various forms of cytotoxicity and
may be beneficial to AIDS patients whose defects in leukocyte
cytotoxicity may be due to glutathione depletion.
DE Acetylcysteine/*PHARMACOLOGY Adolescence Adult Antibody-Dependent
Cell Cytotoxicity/*DRUG EFFECTS Antioxidants/*PHARMACOLOGY
Carmustine/PHARMACOLOGY Child Child, Preschool Female
Glutathione/PHYSIOLOGY Granulomatous Disease, Chronic/IMMUNOLOGY Human
HIV Infections/*IMMUNOLOGY Infant Leukocytes, Mononuclear/*DRUG
EFFECTS/IMMUNOLOGY Male Neutrophils/*DRUG EFFECTS/IMMUNOLOGY Support,
Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).