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| Publications [#160469] of Bernard M Fischer
Papers Published
- JA Voynow, BM Fischer, S Zheng, EN Potts, AR Grover, AK Jaiswal, AJ Ghio, WM Foster, NAD(P)H quinone oxidoreductase 1 is essential for ozone-induced oxidative stress in mice and humans.,
American journal of respiratory cell and molecular biology, vol. 41 no. 1
(July, 2009),
pp. 107-13, ISSN 1535-4989 [doi]
(last updated on 2013/05/16)
Abstract:
One host susceptibility factor for ozone identified in epidemiologic studies is NAD(P)H quinone oxidoreductase 1 (NQO1). We hypothesized that after ozone exposure, NQO1 is required to increase 8-isoprostane (also known as F(2)-isoprostane) production, a recognized marker of ozone-induced oxidative stress, and to enhance airway inflammation and hyperresponsiveness. In this report, we demonstrate that in contrast to wild-type mice, NQO1-null mice are resistant to ozone and have blunted responses, including decreased production of F(2)-isoprostane and keratinocyte chemokine, decreased airway inflammation, and diminished airway hyperresponsiveness. Importantly, these results in mice correlate with in vitro findings in humans. In primary human airway epithelial cells, inhibition of NQO1 by dicumarol blocks ozone-induced F(2)-isoprostane production and IL-8 gene expression. Together, these results demonstrate that NQO1 modulates cellular redox status and influences the biologic and physiologic effects of ozone.
Keywords:
Animals • Bronchi • Bronchial Hyperreactivity • Bronchial Provocation Tests • Cells, Cultured • Chemokines • Dicumarol • Dinoprost • Enzyme Inhibitors • Epithelial Cells • Humans • Interleukin-8 • Mice • Mice, Inbred C57BL • Mice, Knockout • NAD(P)H Dehydrogenase (Quinone) • NADPH Dehydrogenase • Oxidants • Oxidation-Reduction • Oxidative Stress • Ozone • Pneumonia • Time Factors • analogs & derivatives • antagonists & inhibitors • chemically induced • deficiency • drug effects* • enzymology • enzymology* • genetics • metabolism • metabolism* • pharmacology • physiopathology • prevention & control • toxicity*
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