PMID- 28165020 OWN - NLM STAT- MEDLINE DCOM- 20181113 LR - 20181211 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 DP - 2017 Feb 6 TI - A potent synthetic inorganic antibiotic with activity against drug-resistant pathogens. PG - 41999 LID - 10.1038/srep41999 [doi] LID - 41999 AB - The acronymously named "ESKAPE" pathogens represent a group of bacteria that continue to pose a serious threat to human health, not only due to their propensity for repeated emergence, but also due to their ability to "eskape" antibiotic treatment. The evolution of multi-drug resistance in these pathogens alone has greatly outpaced the development of new therapeutics, necessitating an alternative strategy for antibiotic development that considers the evolutionary mechanisms driving antibiotic resistance. In this study, we synthesize a novel inorganic antibiotic, phosphopyricin, which has antibiotic activity against the Gram-positive methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecium (VRE). We show that this potent antibiotic is bactericidal, and exhibits low toxicity in an acute dose assay in mice. As a synthetic compound that does not occur naturally, phosphopyricin would be evolutionarily foreign to microbes, thereby slowing the evolution of resistance. In addition, it loses antibiotic activity upon exposure to light, meaning that the active antibiotic will not accumulate in the general environment where strong selective pressures imposed by antibiotic residuals are known to accelerate resistance. Phosphopyricin represents an innovation in antimicrobials, having a synthetic core, and a photosensitive chemical architecture that would reduce accumulation in the environment. FAU - Hubick, Shelby AU - Hubick S AD - Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada. FAU - Jayaraman, Arumugam AU - Jayaraman A AD - Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada. FAU - McKeen, Alexander AU - McKeen A AD - Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada. FAU - Reid, Shelby AU - Reid S AD - College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, Saskatchewan, S7N2Z4, Canada. FAU - Alcorn, Jane AU - Alcorn J AD - College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, Saskatchewan, S7N2Z4, Canada. FAU - Stavrinides, John AU - Stavrinides J AD - Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada. FAU - Sterenberg, Brian T AU - Sterenberg BT AD - Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170206 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Anti-Bacterial Agents) RN - 0 (Inorganic Chemicals) RN - 0 (Organometallic Compounds) RN - 0 (phosphopyricin) SB - IM MH - Animals MH - Anti-Bacterial Agents/*chemistry/*pharmacology MH - Bacteria/*drug effects/isolation & purification MH - Bacterial Infections/*drug therapy/microbiology MH - Drug Resistance, Multiple, Bacterial/*drug effects MH - Female MH - Inorganic Chemicals/*chemistry MH - Mice MH - Mice, Inbred BALB C MH - Microbial Sensitivity Tests MH - Organometallic Compounds/*chemistry/*pharmacology PMC - PMC5292749 COIS- The authors declare no competing financial interests. EDAT- 2017/02/07 06:00 MHDA- 2018/11/14 06:00 PMCR- 2017/02/06 CRDT- 2017/02/07 06:00 PHST- 2016/11/15 00:00 [received] PHST- 2017/01/03 00:00 [accepted] PHST- 2017/02/07 06:00 [entrez] PHST- 2017/02/07 06:00 [pubmed] PHST- 2018/11/14 06:00 [medline] PHST- 2017/02/06 00:00 [pmc-release] AID - srep41999 [pii] AID - 10.1038/srep41999 [doi] PST - epublish SO - Sci Rep. 2017 Feb 6;7:41999. doi: 10.1038/srep41999.