The two peptide lantibiotic lacticin 3147 acts synergistically with polymyxin to inhibit Gram negative bacteri
dc.contributor.author | Draper, Lorraine A. | |
dc.contributor.author | Cotter, Paul D. | |
dc.contributor.author | Hill, Colin | |
dc.contributor.author | Ross, R. Paul | |
dc.contributor.funder | Science Foundation Ireland | en |
dc.date.accessioned | 2016-02-08T13:30:34Z | |
dc.date.available | 2016-02-08T13:30:34Z | |
dc.date.issued | 2013-09-26 | |
dc.description.abstract | Background: The emergence of bacterial drug resistance encourages the re-evaluation of the potential of existing antimicrobials. Lantibiotics are post-translationally modified, ribosomally synthesised antimicrobial peptides with a broad spectrum antimicrobial activity. Here, we focussed on expanding the potential of lacticin 3147, one of the most studied lantibiotics and one which possesses potent activity against a wide range of Gram positive species including many nosocomial pathogens. More specifically, our aim was to investigate if lacticin 3147 activity could be enhanced when combined with a range of different clinical antibiotics. Results: Initial screening revealed that polymyxin B and polymyxin E (colistin) exhibited synergistic activity with lacticin 3147. Checkerboard assays were performed against a number of strains, including both Gram positive and Gram negative species. The resultant fractional inhibitory concentration (FIC) index values established that, while partial synergy was detected against Gram positive targets, synergy was obvious against Gram negative species, including Cronobacter and E. coli. Conclusions: Combining lacticin 3147 with low levels of a polymyxin could provide a means of broadening target specificity of the lantibiotic, while also reducing polymyxin use due to the lower concentrations required as a result of synergy. | en |
dc.description.sponsorship | Science Foundation Ireland (Investigator Award 10/IN.1/B3027) | en |
dc.description.status | Peer reviewed | en |
dc.description.version | Published Version | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.articleid | 212 | |
dc.identifier.citation | DRAPER, L. A., COTTER, P. D., HILL, C. & ROSS, R. P. 2013. The two peptide lantibiotic lacticin 3147 acts synergistically with polymyxin to inhibit Gram negative bacteria. BMC Microbiology, 13:212, 1-8. http://dx.doi.org/10.1186/1471-2180-13-212 | en |
dc.identifier.doi | 10.1186/1471-2180-13-212 | |
dc.identifier.endpage | 8 | en |
dc.identifier.issn | 1471-2180 | |
dc.identifier.journaltitle | BMC Microbiology | en |
dc.identifier.startpage | 1 | en |
dc.identifier.uri | https://hdl.handle.net/10468/2264 | |
dc.identifier.volume | 13 | en |
dc.language.iso | en | en |
dc.publisher | BioMed Central Ltd. | en |
dc.rights | © Draper et al.; licensee BioMed Central Ltd. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | en |
dc.rights.uri | http://​creativecommons.​org/​licenses/​by/​2.​0 | en |
dc.subject | Antimicrobial | en |
dc.subject | Synergy | en |
dc.subject | Lantibiotic | en |
dc.subject | Bacteriocin | en |
dc.subject | Lacticin 3147 | en |
dc.subject | Polymyxin | en |
dc.title | The two peptide lantibiotic lacticin 3147 acts synergistically with polymyxin to inhibit Gram negative bacteri | en |
dc.type | Article (peer-reviewed) | en |