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  • Title: Bactericidal synergism between antibiotics and phage endolysin Cpl-711 to kill multidrug-resistant pneumococcus.
    Author: Letrado P, Corsini B, Díez-Martínez R, Bustamante N, Yuste JE, García P.
    Journal: Future Microbiol; 2018 Sep; 13(11):1215-1223. PubMed ID: 30238774.
    Abstract:
    AIM: To test the synergistic effect of Cpl-711 endolysin and antibiotics for antipneumococcal activity. MATERIALS & METHODS: A combination of Cpl-711 and different antibiotics (amoxicillin, cefotaxime, levofloxacin and vancomycin) was tested in a checkerboard assay against several multidrug-resistant Streptococcus pneumoniae strains. Mouse and zebrafish models of pneumococcal sepsis were used to confirm the in vitro data. RESULTS: The activity of Cpl-711 combined with amoxicillin or cefotaxime was synergistic in the bactericidal effect against a serotype 23F multiresistant clinical isolate of S. pneumoniae. Synergy between Cpl-711 and cefotaxime was validated using both mouse and zebrafish models. CONCLUSION: Combination of Cpl-711 and cefotaxime may help in the treatment of diseases caused by multiresistant pneumococcal strains.
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