Resolvin D1 enhances the resolution of lung inflammation caused by long-term Pseudomonas aeruginosa infection

M. Codagnone, E. Cianci, A. Lamolinara, V. C. Mari, A. Nespoli, E. Isopi, D. Mattoscio, Makoto Arita, A. Bragonzi, M. Iezzi, M. Romano, A. Recchiuti

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Pseudomonas aeruginosa lung infection is a main cause of disability and mortality worldwide. Acute inflammation and its timely resolution are crucial for ensuring bacterial clearance and limiting tissue damage. Here, we investigated protective actions of resolvin (Rv) D1 in lung infection induced by the RP73 clinical strain of P. aeruginosa. RvD1 significantly diminished bacterial growth and neutrophil infiltration during acute pneumonia caused by RP73. Inoculum of RP73, immobilized in agar beads, resulted in persistent lung infection up to 21 days, leading to a non resolving inflammation reminiscent of human pathology. RvD1 significantly reduced bacterial titer, leukocyte infiltration, and lung tissue damage. In murine lung macrophages sorted during P. aeruginosa chronic infection, RvD1 regulated the expression of Toll-like receptors, downstream genes, and microRNA (miR)-21 and 155, resulting in reduced inflammatory signaling. In vitro, RvD1 enhanced phagocytosis of P. aeruginosa by neutrophils and macrophages, recapitulating its in vivo actions. These results unveil protective functions and mechanisms of action of RvD1 in acute and chronic P. aeruginosa pneumonia, providing evidence for its potent pro-resolution and tissue protective properties on airway mucosal tissue during infection.

Original languageEnglish
Pages (from-to)35-49
Number of pages15
JournalMucosal Immunology
Volume11
Issue number1
DOIs
Publication statusPublished - 2018 Jan 1
Externally publishedYes

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Pseudomonas Infections
Pseudomonas aeruginosa
Pneumonia
Lung
Infection
Macrophages
Inflammation
Neutrophil Infiltration
Toll-Like Receptors
MicroRNAs
Phagocytosis
Agar
Mucous Membrane
Neutrophils
Leukocytes
resolvin D1
Pathology
Mortality
Growth
Genes

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Codagnone, M., Cianci, E., Lamolinara, A., Mari, V. C., Nespoli, A., Isopi, E., ... Recchiuti, A. (2018). Resolvin D1 enhances the resolution of lung inflammation caused by long-term Pseudomonas aeruginosa infection. Mucosal Immunology, 11(1), 35-49. https://doi.org/10.1038/mi.2017.36

Resolvin D1 enhances the resolution of lung inflammation caused by long-term Pseudomonas aeruginosa infection. / Codagnone, M.; Cianci, E.; Lamolinara, A.; Mari, V. C.; Nespoli, A.; Isopi, E.; Mattoscio, D.; Arita, Makoto; Bragonzi, A.; Iezzi, M.; Romano, M.; Recchiuti, A.

In: Mucosal Immunology, Vol. 11, No. 1, 01.01.2018, p. 35-49.

Research output: Contribution to journalArticle

Codagnone, M, Cianci, E, Lamolinara, A, Mari, VC, Nespoli, A, Isopi, E, Mattoscio, D, Arita, M, Bragonzi, A, Iezzi, M, Romano, M & Recchiuti, A 2018, 'Resolvin D1 enhances the resolution of lung inflammation caused by long-term Pseudomonas aeruginosa infection', Mucosal Immunology, vol. 11, no. 1, pp. 35-49. https://doi.org/10.1038/mi.2017.36
Codagnone, M. ; Cianci, E. ; Lamolinara, A. ; Mari, V. C. ; Nespoli, A. ; Isopi, E. ; Mattoscio, D. ; Arita, Makoto ; Bragonzi, A. ; Iezzi, M. ; Romano, M. ; Recchiuti, A. / Resolvin D1 enhances the resolution of lung inflammation caused by long-term Pseudomonas aeruginosa infection. In: Mucosal Immunology. 2018 ; Vol. 11, No. 1. pp. 35-49.
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