Volume 10, Issue 4 pp. 229-237
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Fast and sensitive chemiluminescence determination of H2O2 concentration in stimulated human neutrophils

S. Mueller

Corresponding Author

S. Mueller

Institute of Medical Physics and Biophysics, School of Medicine, University of Leipzig, Liebigstrasse 27, D-04103 Leipzig, Germany

Department of Internal Medicine IV, University of Heidelberg, Bergheimer Strasse 58, 69115 Heidelberg, GermanySearch for more papers by this author
J. Arnhold

J. Arnhold

Institute of Medical Physics and Biophysics, School of Medicine, University of Leipzig, Liebigstrasse 27, D-04103 Leipzig, Germany

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First published: July/August 1995
Citations: 39

Abstract

A fast and sensitive chemiluminescence assay for the determination of H2O2 in stimulated neutrophils without the use of enzymes was developed. The method is based on the oxidation of luminol by hypochlorous acid. The chemiluminescence of this reaction is highly dependent on the concentration of hydrogen peroxide.

Changes in H2O2 concentration in PMA-stimulated neutrophils were followed by injection of NaOCI to cell suspension at different times after cell stimulation. The short integration time of 2 s permits calculation of actual concentrations of H2O2 without influence of H2O2 decomposition by cellular enzymes or newly produced H2O2 due to dismutation of superoxide anion radicals. Concentrations of H2O2 were diminished by catalase and enhanced by sodium azide owing to inhibition of cellular catalase and myeloperoxidase. Changes in H2O2 concentration upon stimulation could be observed at 3000 cell/mL.

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