Natural killer (NK) activity of pit cells perfused from livers of rats treated with ethanol

Conference · Mon Mar 11 04:00:00 EST 1991 · FASEB Journal (Federation of American Societies for Experimental Biology); (United States)

OSTI ID:5905513

Albornoz, L; Jones, J M; Crutchfield, C; Veech, R L ^[1]

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1. National Inst. of Alcohol Abuse and Alcoholism, Rockville, MD (United States) Univ. of Arkansas Medical Sciences, Little Rock (United States)

The liver is the major site of ethanol (ETOH) metabolism. Liver sinusoids contain lymphocytes with NK activity. The authors treated LEW rats for 2 weeks with i.p. injection of 1.25 ml 25% ETOH/kg 3 times/week and 5% ETOH in drinking water. Livers were perfused at 5-fold physiological pressure and cells obtained were banded on 1.077 density Ficoll. Their cytotoxicity was tested against {sup 51}Cr-labeled YAC-1 or U937 and compared to spleen and blood lymphocytes. In untreated rats, pit cell NK activity was 2-fold that of splenic lymphocytes and 4-fold that of blood lymphocytes. Compared to controls, ETOH-treated rats exhibited a 30 to 90% rise in pit cell NK activity detected with YAC-1 or U937 targets. The pit cell enhanced NK activity in ETOH-treated rats was further increased if polyinosinicpolycytidilic acid was injection i.p. 18 hours before the assay. Blood and spleen lymphocyte NK activity of ETOH-treated rats was also greater than in controls. There was no evidence that ETOH merely redistributed lymphocytes among the tissues. Although ETOH acutely inhibits NK activity in vitro, chronic ETOH increases in vivo.

• OSTI ID: 5905513
• Report Number(s): CONF-9104107--
• Conference Information: Journal Name: FASEB Journal (Federation of American Societies for Experimental Biology); (United States) Journal Volume: 5:4
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALCOHOLS
ANIMAL CELLS
ANIMALS
BETA DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CELL PROLIFERATION
CHROMIUM 51
CHROMIUM ISOTOPES
CONNECTIVE TISSUE CELLS
DAYS LIVING RADIOISOTOPES
DIGESTIVE SYSTEM
ELECTRON CAPTURE RADIOISOTOPES
ETHANOL
EVEN-ODD NUCLEI
GLANDS
HYDROXY COMPOUNDS
INTERMEDIATE MASS NUCLEI
ISOTOPE APPLICATIONS
ISOTOPES
LEUKOCYTES
LIVER
LYMPHOCYTES
MAMMALS
MATERIALS
METABOLISM
NUCLEI
ORGANIC COMPOUNDS
ORGANS
PERFUSED ORGANS
RADIOISOTOPES
RATS
RODENTS
SOMATIC CELLS
SPLEEN CELLS
TRACER TECHNIQUES
VERTEBRATES