Skip to main content
Log in

Ouabain reduces the expression of the adhesion molecule CD18 in neutrophils

  • Short Communication
  • Published:
Inflammopharmacology Aims and scope Submit manuscript

Abstract

Ouabain, a hormone that inhibits Na+/K+-ATPase, modulates many aspects of the inflammatory response. It has been previously demonstrated that ouabain inhibits neutrophil migration in several inflammation models in vivo, but little is known about the mechanisms underlying this effect. Thus, this work aimed to evaluate the effect of ouabain on molecules related to neutrophil migration. For this purpose, neutrophils obtained from mouse bone marrow were treated with ouabain (1, 10, and 100 nM) in vitro. Neutrophil viability was assessed by annexin V/propidium iodide staining. Ouabain treatment did not affect neutrophil viability at different times (2, 4, and 24 h). However, basal neutrophil viability was decreased after 4 h. Thus, we assessed the effect of ouabain on the adhesion molecule CD18, an integrin β2 chain protein, and on the chemokine receptor CXCR2 after 2 h of treatment. CD18 expression was reduced (by 30%) by 1 nM ouabain. However, the expression of CXCR2 on the neutrophil membrane was not affected by ouabain treatment (1, 10, and 100 nM). Moreover, ouabain (1, 10, and 100 nM) did not modulate the zymosan-induced secretion of CXCL1 (a chemokine receptor CXCR2 ligand) in macrophage cultures. These data suggest that the inhibitory effect of ouabain on neutrophil migration is related to reduced CD18 expression, indicating a novel mechanism of action.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

References

Download references

Acknowledgements

This research was supported partly by a grant from the “Coordenação de Aperfeiçoamento de Pessoal de Nível Superior” (CAPES), Grant number 2951/2014, and by a fellowship from “Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)”, award number 140856/2016-1.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Sandra Rodrigues-Mascarenhas.

Ethics declarations

Conflict of interest

The authors declare that there is no conflict of interest regarding the publication of this paper.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Cavalcante-Silva, L.H.A., Lima, É.A., Carvalho, D.C.M. et al. Ouabain reduces the expression of the adhesion molecule CD18 in neutrophils. Inflammopharmacol 28, 787–793 (2020). https://doi.org/10.1007/s10787-019-00602-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10787-019-00602-8

Keywords

Navigation