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The ability of this pathogen to survive eradication by tobramycin and pathoadapt into a hyperbiofilm state leading to chronic infections is key to its success. Retrospective studies have demonstrated that preventing this pathoadaptation by improving eradication is essential to extend the lives of CF patients. To identify adjuvants that enhance tobramycin eradication of\n            <jats:named-content content-type=\"genus-species\">P. aeruginosa<\/jats:named-content>\n            , we performed a high-throughput screen of 6,080 compounds from four drug-repurposing libraries. We identified that the Food and Drug Administration (FDA)-approved compound triclosan, in combination with tobramycin, resulted in a 100-fold reduction of viable cells within biofilms at 6 h, but neither compound alone had significant antimicrobial activity against biofilms. This synergistic treatment significantly accelerated the killing of biofilms compared to that with tobramycin treatment alone, and the combination was effective against 6\/7 CF clinical isolates compared to tobramycin treatment alone, including a tobramycin-resistant strain. Further, triclosan and tobramycin killed persister cells, causing a 100-fold reduction by 8 h and complete eradication by 24 h. Triclosan also enhances tobramycin killing of multiple\n            <jats:named-content content-type=\"genus-species\">Burkholderia cenocepacia<\/jats:named-content>\n            and\n            <jats:named-content content-type=\"genus-species\">Staphylococcus aureus<\/jats:named-content>\n            clinical isolates grown as biofilms. Additionally, triclosan showed synergy with other aminoglycosides, such as gentamicin or streptomycin. Triclosan is a well-tolerated aminoglycoside adjuvant shown to be safe for human use that could improve the treatment of biofilm-based infections.\n          <\/jats:p>","DOI":"10.1128\/aac.00146-18","type":"journal-article","created":{"date-parts":[[2018,4,12]],"date-time":"2018-04-12T14:12:56Z","timestamp":1523542376000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":48,"title":["Triclosan Is an Aminoglycoside Adjuvant for Eradication of Pseudomonas aeruginosa Biofilms"],"prefix":"10.1128","volume":"62","author":[{"given":"Michael M.","family":"Maiden","sequence":"first","affiliation":[{"name":"Departments of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, USA"},{"name":"The BEACON Center for The Study of Evolution in Action, Michigan State University, East Lansing, Michigan, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandra M. 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