Cited by 108Neutrophil, Myeloperoxidase and Oxidative MechanismsRedox biology and oxidative stressRheumatoid Arthritis Research and Therapies

Superoxide production by polymorphonuclear leucocytes in rheumatoid arthritis and osteoarthritis: in vivo inhibition by the antirheumatic drug piroxicam due to interference with the activation of the NADPH-oxidase.

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Biemond, P, Swaak, A.J, Penders, J.M, Beindorff, C.M, Koster, J.F·1986·Annals of the Rheumatic Diseases

Abstract

The superoxide (O2-) production of stimulated polymorphonuclear leucocytes is increased in patients with rheumatoid arthritis and osteoarthritis compared with controls. Treatment of these different groups with pharmacological amounts of the non-steroidal anti-inflammatory drug piroxicam in vivo resulted in a decrease of about 25% in O2- secretion by isolated granulocytes. In vitro experiments showed that piroxicam inhibits O2- production of granulocytes by interference with the stimulation of the NADPH-oxidase. Piroxicam caused diminished O2- production of membrane fragments if it was present during the stimulation of the NADPH-oxidase of the intact cells. During the actual O2- production of the stimulated membrane fragments piroxicam had no effect. It is concluded that piroxicam is able to inhibit granulocyte O2- production by blocking the activation of NADPH-oxidase, which results in diminished tissue destruction by oxygen free radicals in inflammatory diseases.

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  1. Greenwald R A, Moy W W, Lazarus D. Degradation of cartilage proteoglycans and collagen by superoxide radical [Abstract]. Arthritis Rheum 1976; 19: 799.

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Authors
Biemond, P., Swaak, A. J., Penders, J. M., Beindorff, C. M., & Koster, J. F.
Affiliations
Pfizer (Netherlands) (NL)
Venue
Annals of the Rheumatic Diseases
Publisher
Elsevier BV
Published
1986-03
Volume
45
Issue
3
Pages
249-255
ISSN
0003-4967 (ISSN-L)
OpenAlex
W2096842762
Cited by
108
References
23
Citations by year
2022: 1 · 2021: 1 · 2019: 2 · 2018: 1 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 1 · 2012: 2
FWCI
2.35
Type
journal article
Language
en
Open access
Locations
  • Annals of the Rheumatic Diseases (publishedVersion)
  • PubMed Central (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
Keywords
superoxide production, polymorphonuclear leukocytes, granulocytes, rheumatoid arthritis, osteoarthritis, piroxicam, NADPH oxidase, nonsteroidal anti-inflammatory drugs, oxygen free radicals, oxidative tissue damage
MeSH terms
Arthritis, Arthritis, Rheumatoid, Humans, NADH, NADPH Oxidoreductases, Neutrophils, Osteoarthritis, Piroxicam, Superoxides, Tetradecanoylphorbol Acetate, Thiazines, NADPH Oxidases

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