Effect of PD98059, a selective MAPK3/MAPK1 inhibitor, on acute lung injury in mice

R. Di Paola, C. Crisafulli, E. Mazzon, T. Genovese, I. Paterniti, P. Bramanti, Salvatore Cuzzocrea

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of the present study is to evaluate the contribution of mitogen-activated protein kinase 1-3 (MAPK3/MAPK1) in a model of acute lung inflammation in mice. Injection of carrageenan into the pleural cavity of mice elicited an acute inflammatory response characterized by: accumulation of fluid containing a large number of neutrophils (PMNs) in the pleural cavity, infiltration of PMNs in lung tissues and subsequent adhesion molecule expression (I-CAM and P-selectin), lipid peroxidation, and increased production of tumour necrosis factor-α, (TNF-α) and interleukin-1β (IL-1β). Furthermore, carrageenan induced lung apoptosis (Bax and Bcl-2 expression) as well as nitrotyrosine formation, NF-κB activation, and pJNK expression, as determined by immunohistochemical analysis of lung tissues and the degree of lung inflammation and tissue injury (histological score). Administration of PD98059, an inhibitor of MAPK3/MAPK1 (10 mg/kg) 1 h after carrageenan caused a reduction in all the parameters of inflammation measured. Thus, based on these findings we propose that inhibitors of the MAPK3/MAPK1 signaling pathways, such as PD98059, may be useful in the treatment of various inflammatory diseases.

Original languageEnglish
Pages (from-to)937-950
Number of pages14
JournalInternational Journal of Immunopathology and Pharmacology
Volume22
Issue number4
Publication statusPublished - Oct 2009

Keywords

  • Mitogen-activated protein kinase inhibitor
  • Neutrophil infiltration
  • Pleurisy

ASJC Scopus subject areas

  • Pharmacology
  • Immunology
  • Immunology and Allergy

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