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M9480875.TXT
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1994-09-05
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Document 0875
DOCN M9480875
TI Effect of HIV-1 infection on natural killer cells and neutrophils of
chimpanzees.
DT 9410
AU Javadian MA; Lafrado LJ; Couch RC; Marr JM; Boisford JL; Coulston
Foundation, WSRC, Alamogordo, NM.
SO Abstr Gen Meet Am Soc Microbiol. 1994;94:158 (abstract no. E-85). Unique
Identifier : AIDSLINE ASM94/94313070
AB Human infection with HIV-1 is characterized by a variety of profound
defects in cellular immunity, including depression in natural killer
(NK) cell activity and phagocytic activity of neutrophils which perform
important inflammatory and immune functions. In the present experiment,
natural killer cell and neutrophil phagocytic activities of HIV-1
infected chimpanzees were assayed against the erythroleukemia cell line
K562 and fluorescent latex beads, respectively. In addition, the in
vitro effect of interleukin-2 (IL-2) on depressed NK cells was
evaluated. Data obtained from this study demonstrate that NK cell
activity in HIV-1 infected chimpanzees was less (p < 0.05) than their
cytotoxic activity in the naive controls. The NK cell activity was
significantly enhanced by in vitro interleukin-2 treatment of peripheral
blood lymphocytes from both naive control and experimental chimpanzees.
Neutrophils from HIV-1 infected animals exposed to fluorescein
isothiocyanate (FITC) conjugated latex beads showed decreased
phagocytosis. We conclude that HIV-1 infection in chimpanzees causes
reduction in cytotoxic activity of NK cells and phagocytosis by
polymorphonuclear leukocytes, as seen in humans.
DE Acquired Immunodeficiency Syndrome/*BLOOD/*IMMUNOLOGY Animal Cell Line
Chimpansee troglodytes Cytotoxicity, Immunologic Human *HIV-1 Killer
Cells, Natural/*IMMUNOLOGY Leukemia, Myeloid, Chronic
Neutrophils/*PHYSIOLOGY Phagocytosis Tumor Cells, Cultured MEETING
ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).