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RECORD NUMBER: 8 OF 14

Main Title Modulation of Human Alveolar Macrophage Properties by Ozone Exposure In vitro.
Author Becker, S.; Madden, M. C.; Newman, S. L.; Devlin, R. B.; Koren, H. S.;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. ;ABB Environmental Services, Inc., Chapel Hill, NC. ;Cincinnati Univ. Medical Center, OH. ;North Carolina Univ. at Chapel Hill.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/266;
Stock Number PB92-113281
Subjects Ozone; Air pollution effects(Human); Macrophages; Toxicology; Humans; Pulmonary alveoli; In vitro analysis; Cryptococcus neoformans; Prostaglandins; Superoxide; Complement; Electrophoresis; Cytokines; Tetradecanoylphorbol acetate; Growth; Interleukin-1; Interleukin-6; Immunofluorescence techniques; Reprints;
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB92-113281 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/24/1992
Collation 15p
Abstract The study investigated changes in human alveolar macrophage (HAM) function after exposure in vitro to ozone (O3)(0.1-1.0 ppm for 2-4 hr). The functions studied reflect concern that O3 is detrimental to host defense mechanisms in the bronchoalveolar spaces. Exposure of HAM to O3 caused a concentration-dependent increase in release of prostaglandin E2(PGE2), an important modulator of inflammation, phagocytosis, and oxidative burst. Although phagocytosis of particulate immune complexes was decreased by O3, the authors found no change in the quantity of Fc receptors and complement receptors on the HAM surface. Superoxide (O2) production in response to phorbol ester was reduced after exposure of HAM to O3 while the basal O2 release in response to plastic adherence was not affected. Growth inhibition of the opportunistic yeast Cryptococcus neoformans by HAM was not affected by O3 exposure. The production of inflammatory mediators and immune modulators such as tumor necrosis factor-alpha, interleukin 1, and interleukin 6 were not induced by exposure to O3. However, compared to controls, O3-exposed HAM produced significantly lower levels of these cytokines when simulated with bacterial lipopolysaccharide (LPS). (Copyright (c) 1991 by Academic Press, Inc.)
Supplementary Notes Pub. in Toxicology and Applied Pharmacology, v110 n3 p403-415 1991. Prepared in cooperation with ABB Environmental Services, Inc., Chapel Hill, NC., Cincinnati Univ. Medical Center, OH., and North Carolina Univ. at Chapel Hill.
NTIS Title Notes Journal article.
Title Annotations Reprint: Modulation of Human Alveolar Macrophage Properties by Ozone Exposure In vitro.
Category Codes 68A; 57Y; 57J
NTIS Prices PC A03/MF A01
Primary Description 600/10
Document Type NT
Control Number 135322309
Cataloging Source NTIS/MT
Origin NTIS
Type CAT