Anti-Inflammatory Effects of β2-Receptor Agonists Salbutamol and Terbutaline Are Mediated by MKP-1

PLoS One. 2016 Feb 5;11(2):e0148144. doi: 10.1371/journal.pone.0148144. eCollection 2016.

Abstract

Mitogen-activated protein kinase phosphatase 1 (MKP-1) expression is induced by inflammatory factors, and it is an endogenous suppressor of inflammatory response. MKP-1 expression is increased by PDE4 inhibitor rolipram suggesting that it is regulated by cAMP-enhancing compounds. Therefore, we investigated the effect of β2-receptor agonists on MKP-1 expression and inflammatory response. We found that β2-receptor agonists salbutamol and terbutaline, as well as 8-Br-cAMP, increased MKP-1 expression. Salbutamol and terbutaline also inhibited p38 MAPK phosphorylation and TNF production in J774 mouse macrophages. Interestingly, salbutamol suppressed carrageenan-induced paw inflammation in wild-type mice, but the effect was attenuated in MKP-1(-/-) mice. In conclusion, these data show that β2-receptor agonists increase MKP-1 expression, which seems to mediate, at least partly, the observed anti-inflammatory effects of β2-receptor agonists.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adrenergic beta-2 Receptor Agonists / pharmacology*
  • Albuterol / pharmacology*
  • Animals
  • Anti-Inflammatory Agents / pharmacology*
  • Cell Line
  • Dual Specificity Phosphatase 1 / genetics
  • Dual Specificity Phosphatase 1 / metabolism*
  • Gene Expression Regulation, Enzymologic / drug effects
  • Macrophages / drug effects
  • Macrophages / metabolism
  • Mice
  • Mice, Inbred C57BL
  • Terbutaline / pharmacology*
  • Tumor Necrosis Factor-alpha / biosynthesis

Substances

  • Adrenergic beta-2 Receptor Agonists
  • Anti-Inflammatory Agents
  • Tumor Necrosis Factor-alpha
  • Dual Specificity Phosphatase 1
  • Terbutaline
  • Albuterol

Grants and funding

This work was financially supported by grants from The Academy of Finland, from the Competitive Research Funding of the Pirkanmaa Hospital District, Finland, and from Tampere Tuberculosis Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.