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Interdiscip Toxicol. 2017 Oct;10(2):61-65. doi: 10.1515/intox-2017-0010.

The effects of berberine on reactive oxygen species production in human neutrophils and in cell-free assays.

Author information

1
Institute of Biophysics, Academy of Sciences of the Czech Republic, v. v. i., Kralovopolska 135, 612 65 Brno, Czech Republic.
2
Zoology and Entomology Department, Faculty of Science, Helwan University, Ain Helwan, 11795 Cairo, Egypt.
3
Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska cesta 9, 841 04 Bratislava, Slovak Republic.

Abstract

The health benefits of berberine have been recognized for years. Even so, its effects on human neutrophils, the first line of immune defense, have not been reported. The purpose of this study was to investigate the effects of berberine on the human neutrophil oxidative burst. Reactive oxygen species production was analyzed by luminol-enhanced chemiluminescence. The analysis was performed in spontaneous and stimulated (phorbol myristate acetate (PMA) or opsonized zymosan particles (OZP)) whole blood and isolated neutrophils in the presence or absence of berberine. The effects of berberine on oxidant production in cell-free assays were evaluated using luminescence (H2O2-peroxidase-luminol) and fluorescence (Oxygen Radical Absorbance Capacity - ORAC) techniques. Berberine decreased the production of reactive oxygen species in human whole blood and isolated neutrophils stimulated with either PMA or OZP with a different efficiency (EC50 was 69 μM and 197 μM for PMA and OZP, respectively). The effect was more pronounced in isolated neutrophils. Cell-free assays showed the antioxidant activity of berberine against peroxyl radicals and hydrogen peroxide. Based on our results, we suggest that the effects of berberine on reactive oxygen species production in human neutrophils are due to its antioxidant activity.

KEYWORDS:

berberine; chemiluminescence; neutrophil; reactive oxygen species

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