ArticlePloS one2022
Antimicrobial effects of inhaled sphingosine against Pseudomonas aeruginosa in isolated ventilated and perfused pig lungs.
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Inhaled sphingosine reduces bronchial Pseudomonas aeruginosa burden during porcine ex vivo lung perfusion and shows tissue delivery in explanted human lungs.Scientific reports · 2026Article
- Sphingosine synergizes with polymyxin antibiotics againstMicrobiology (Reading, England) · 2026Article
- Sphingosine-mediated death ofInfection and immunity · 2025Article
- TheMicrobiology (Reading, England) · 2025Article
- ThebioRxiv : the preprint server for biology · 2024Article
- New Therapeutic Options in Pulmonal Diseases: Sphingolipids and Modulation of Sphingolipid Metabolism.Handbook of experimental pharmacology · 2024Review
- Decreased Sphingosine Due to Down-Regulation of Acid Ceramidase Expression in Airway of Bronchiectasis Patients: A Potential Contributor toInfection and drug resistance · 2023Article
Corrections and comments
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Authors and funding
15 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEx-vivo lung perfusion (EVLP) is a save way to verify performance of donor lungs prior to implantation. A major problem of lung transplantation is a donor-to-recipient-transmission of bacterial cultures. Thus, a broadspectrum anti-infective treatment with sphingosine in EVLP might be a novel way to prevent such infections. Sphingosine inhalation might provide a reliable anti-infective treatment option in EVLP. Here, antimicrobial potency of inhalative sphingosine in an infection EVLP model was tested.
methodsA 3-hour EVLP run using pig lungs was performed. Bacterial infection was initiated 1-hour before sphingosine inhalation. Biopsies were obtained 60 and 120 min after infection with Pseudomonas aeruginosa. Aliquots of broncho-alveolar lavage (BAL) before and after inhalation of sphingosine were plated and counted, tissue samples were fixed in paraformaldehyde, embedded in paraffin and sectioned. Immunostainings were performed.
resultsSphingosine inhalation in the setting of EVLP rapidly resulted in a 6-fold decrease of P. aeruginosa CFU in the lung (p = 0.016). We did not observe any negative side effects of sphingosine.
conclusionInhalation of sphingosine induced a significant decrease of Pseudomonas aeruginosa at the epithelial layer of tracheal and bronchial cells. The inhalation has no local side effects in ex-vivo perfused and ventilated pig lungs.
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