Skip to main content
Top
Published in: BMC Complementary Medicine and Therapies 1/2016

Open Access 01-12-2016 | Research article

Anvillea garcinii extract inhibits the oxidative burst of primary human neutrophils

Authors: Hanane Boukemara, Margarita Hurtado-Nedelec, Viviana Marzaioli, Dalila Bendjeddou, Jamel El Benna, Jean-Claude Marie

Published in: BMC Complementary Medicine and Therapies | Issue 1/2016

Login to get access

Abstract

Background

Anvillea garcinii Coss. & Durieu (Anv) plant is used as a traditional North African medicine against several diseases associated with inflammation. At inflammatory sites, reactive oxygen species (ROS) produced in excess by activated phagocyte NADPH oxidase (NOX2) can accentuate inflammatory responses. Thus, we investigated if Anv-water soluble polysaccharides could modulate primary human neutrophil oxidative burst in vitro.

Methods

Human neutrophils were isolated from fresh whole blood and O2.- generation was measured by cytochrome c reduction assays. Western blots were used to analyse the translocation of PKC, p47phox (a key component of NOX2 activity) to neutrophil plasma membrane. Also, myeloperoxidase (MPO) release in the extracellular medium was studied by western blots. Flow cytometric analysis was used to detect CD11b membrane expression.

Results

Water soluble polysaccharides from Anv dose-dependently inhibited N-formyl-methionyl-leucyl-phenylalanine (fMLF)- and phorbol myristate acetate (PMA)-induced O2.- generation by human neutrophils. Moreover, Anv-polysaccharides strongly inhibited PMA-induced PKCβ and p47phox translocation to membranes and p47phox phosphorylation on Ser328, a main PKC target. In contrast, polysaccharides extract from Zygophyllum gaetulum plant, which is also used as a traditional North African medicine against inflammatory diseases, was ineffective on this PKCβ-p47phox pathway. Further, Anv inhibited important neutrophil degranulation markers corresponding to myeloperoxidase (MPO) release and CD11b membrane expression.

Conclusion

The process of down-regulating NADPH oxidase by polysaccharides extracts from Anv provides new insights into the mechanism of Anv’s anti-inflammatory actions.
Appendix
Available only for authorised users
Literature
3.
go back to reference El-Benna J, Dang PM-C, Gougerot-Pocidalo MA, Marie JC, Braut-Boucher F. p47phox, the phagocyte NADPH oxidase/NOX2 organizer: structure, phosphorylation and implication in diseases. Exp Mol Med. 2009;41:217–25. [cited 2015 Oct 11]. Available from: http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2679237&tool=pmcentrez&rendertype=abstract.CrossRefPubMedPubMedCentral El-Benna J, Dang PM-C, Gougerot-Pocidalo MA, Marie JC, Braut-Boucher F. p47phox, the phagocyte NADPH oxidase/NOX2 organizer: structure, phosphorylation and implication in diseases. Exp Mol Med. 2009;41:217–25. [cited 2015 Oct 11]. Available from: http://​www.​pubmedcentral.​nih.​gov/​articlerender.​fcgi?​artid=​2679237&​tool=​pmcentrez&​rendertype=​abstract.​CrossRefPubMedPubMedCentral
22.
go back to reference El-Benna J, Ruedi JM, Babior BM. Cytosolic guanine nucleotide-binding protein Rac2 operates in vivo as a component of the neutrophil respiratory burst oxidase. Transfer of Rac2 and the cytosolic oxidase components p47phox and p67phox to the submembranous actin cytoskeleton during oxidase. J Biol Chem. 1994;269:6729–34. [cited 2015 Dec 4]. Available from: http://www.ncbi.nlm.nih.gov/pubmed/8120032.PubMed El-Benna J, Ruedi JM, Babior BM. Cytosolic guanine nucleotide-binding protein Rac2 operates in vivo as a component of the neutrophil respiratory burst oxidase. Transfer of Rac2 and the cytosolic oxidase components p47phox and p67phox to the submembranous actin cytoskeleton during oxidase. J Biol Chem. 1994;269:6729–34. [cited 2015 Dec 4]. Available from: http://​www.​ncbi.​nlm.​nih.​gov/​pubmed/​8120032.PubMed
Metadata
Title
Anvillea garcinii extract inhibits the oxidative burst of primary human neutrophils
Authors
Hanane Boukemara
Margarita Hurtado-Nedelec
Viviana Marzaioli
Dalila Bendjeddou
Jamel El Benna
Jean-Claude Marie
Publication date
01-12-2016
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2016
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/s12906-016-1411-7

Other articles of this Issue 1/2016

BMC Complementary Medicine and Therapies 1/2016 Go to the issue