In:
PLOS ONE, Public Library of Science (PLoS), Vol. 17, No. 7 ( 2022-7-21), p. e0271620-
Abstract:
Ex-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. Methods A 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. Results Sphingosine 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. Conclusion Inhalation 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.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0271620
DOI:
10.1371/journal.pone.0271620.g001
DOI:
10.1371/journal.pone.0271620.g002
DOI:
10.1371/journal.pone.0271620.g003
DOI:
10.1371/journal.pone.0271620.g004
DOI:
10.1371/journal.pone.0271620.g005
DOI:
10.1371/journal.pone.0271620.g006
DOI:
10.1371/journal.pone.0271620.g007
DOI:
10.1371/journal.pone.0271620.t001
DOI:
10.1371/journal.pone.0271620.t002
DOI:
10.1371/journal.pone.0271620.t003
DOI:
10.1371/journal.pone.0271620.t004
DOI:
10.1371/journal.pone.0271620.s001
DOI:
10.1371/journal.pone.0271620.s002
DOI:
10.1371/journal.pone.0271620.r001
DOI:
10.1371/journal.pone.0271620.r002
DOI:
10.1371/journal.pone.0271620.r003
DOI:
10.1371/journal.pone.0271620.r004
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2022
detail.hit.zdb_id:
2267670-3
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