Investigation of the role of Cremophor RH 40 and Cremophor EL in the inhibition of efflux pump of Pseudomonas aeruginosa
| Autor: | Muhammad Asim, Yasin Ahmad, Momin Khan, Zeeshan Ahmad, Awais Khalid, Pervaiz Ahmad, Abdulhameed Khan, Fakhrul Ahsan, Mohsin Kazi, Samer H. Zyoud |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Heliyon, Vol 10, Iss 13, Pp e33749- (2024) |
| Druh dokumentu: | article |
| ISSN: | 2405-8440 26262878 |
| DOI: | 10.1016/j.heliyon.2024.e33749 |
| Popis: | Background: There is increasing emphasis on restoring the efficacy of existing antibiotics instead of developing new ones. Objectives: This study aimed to determine the role of Cremophor EL and Cremophor RH40 in the inhibition of efflux pumps in MDR Pseudomonas aeruginosa strains. Methods: Efflux pump-active MDR strains of P. aeruginosa were identified and confirmed by flow cytometry. The identified efflux-active strains were further subjected to determination of the MIC of ciprofloxacin and the synergistic role of non-ionic surfactants (Cremophor EL and Cremophor RH40) along with ciprofloxacin. Results: Out of 30 samples, 6 strains displayed high efflux pump activity. Both Cremophor EL and Cremophor RH40 showed efflux pump inhibitory roles. A 4-fold reduction in the MIC values of ciprofloxacin was observed when Cremophor EL was used along with ciprofloxacin, while a 6-fold reduction was observed when Cremophor RH40 was used along with ciprofloxacin. Both compounds showed synergistic effects with ciprofloxacin, ticarcillin and meropenem when used in a 24-well plate efflux pump inhibitory assay. Conclusion: The inhibition of the efflux pump of MDR Pseudomonas aeruginosa by non-ionic surfactants, namely, Cremophor RH40 and Cremophor EL, provided the best strategy to restore the efficacy of ciprofloxacin. |
| Databáze: | Directory of Open Access Journals |
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