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The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?

Staphylococcus aureus infections are common and difficult to treat. The increasing number of drug-resistant staphylococcal infections has created the need to develop new strategies for the treatment of these infections. The synergistic antimicrobial activity of different pharmaceuticals seems to be...

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Autores principales: Zawadzka, Katarzyna, Nowak, Marta, Piwoński, Ireneusz, Lisowska, Katarzyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891268/
https://www.ncbi.nlm.nih.gov/pubmed/31739388
http://dx.doi.org/10.3390/molecules24224104
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author Zawadzka, Katarzyna
Nowak, Marta
Piwoński, Ireneusz
Lisowska, Katarzyna
author_facet Zawadzka, Katarzyna
Nowak, Marta
Piwoński, Ireneusz
Lisowska, Katarzyna
author_sort Zawadzka, Katarzyna
collection PubMed
description Staphylococcus aureus infections are common and difficult to treat. The increasing number of drug-resistant staphylococcal infections has created the need to develop new strategies for the treatment of these infections. The synergistic antimicrobial activity of different pharmaceuticals seems to be an interesting alternative. The aim of this study was to assess the synergistic activity of ciprofloxacin and carvedilol against S. aureus strains. The antibacterial potential of ciprofloxacin and carvedilol was evaluated according to the CLSI guidelines. The calcium content in S. aureus cells was measured using flow cytometry and atomic absorption spectroscopy. Moreover, confocal and scanning electron microscopy were used to determine the mechanism of antibacterial synergy of ciprofloxacin and carvedilol. The antibacterial effect of ciprofloxacin was higher in the presence of carvedilol than in S. aureus cultures containing the antibiotic only. A significant increase in S. aureus membrane permeability was also observed. The simultaneous administration of the tested compounds caused damage to S. aureus cells visualized by SEM. Enhancement of the antimicrobial action of ciprofloxacin by carvedilol was correlated with an increase in free calcium content in S. aureus cells, morphological changes to the cells, and a reduction in the ability to form bacterial aggregates.
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spelling pubmed-68912682019-12-12 The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy? Zawadzka, Katarzyna Nowak, Marta Piwoński, Ireneusz Lisowska, Katarzyna Molecules Article Staphylococcus aureus infections are common and difficult to treat. The increasing number of drug-resistant staphylococcal infections has created the need to develop new strategies for the treatment of these infections. The synergistic antimicrobial activity of different pharmaceuticals seems to be an interesting alternative. The aim of this study was to assess the synergistic activity of ciprofloxacin and carvedilol against S. aureus strains. The antibacterial potential of ciprofloxacin and carvedilol was evaluated according to the CLSI guidelines. The calcium content in S. aureus cells was measured using flow cytometry and atomic absorption spectroscopy. Moreover, confocal and scanning electron microscopy were used to determine the mechanism of antibacterial synergy of ciprofloxacin and carvedilol. The antibacterial effect of ciprofloxacin was higher in the presence of carvedilol than in S. aureus cultures containing the antibiotic only. A significant increase in S. aureus membrane permeability was also observed. The simultaneous administration of the tested compounds caused damage to S. aureus cells visualized by SEM. Enhancement of the antimicrobial action of ciprofloxacin by carvedilol was correlated with an increase in free calcium content in S. aureus cells, morphological changes to the cells, and a reduction in the ability to form bacterial aggregates. MDPI 2019-11-14 /pmc/articles/PMC6891268/ /pubmed/31739388 http://dx.doi.org/10.3390/molecules24224104 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zawadzka, Katarzyna
Nowak, Marta
Piwoński, Ireneusz
Lisowska, Katarzyna
The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?
title The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?
title_full The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?
title_fullStr The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?
title_full_unstemmed The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?
title_short The Synergy of Ciprofloxacin and Carvedilol against Staphylococcus aureus–Prospects of a New Treatment Strategy?
title_sort synergy of ciprofloxacin and carvedilol against staphylococcus aureus–prospects of a new treatment strategy?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891268/
https://www.ncbi.nlm.nih.gov/pubmed/31739388
http://dx.doi.org/10.3390/molecules24224104
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