{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T10:38:38Z","timestamp":1787567918952,"version":"build-2736575974"},"reference-count":62,"publisher":"eLife Sciences Publications, Ltd","license":[{"start":{"date-parts":[[2025,2,7]],"date-time":"2025-02-07T00:00:00Z","timestamp":1738886400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,2,7]],"date-time":"2025-02-07T00:00:00Z","timestamp":1738886400000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,2,7]],"date-time":"2025-02-07T00:00:00Z","timestamp":1738886400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32102716"],"award-info":[{"award-number":["32102716"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32373069"],"award-info":[{"award-number":["32373069"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["elifesciences.org"],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>\n                    Discovering new strategies to combat the multidrug-resistant bacteria constitutes a major medical challenge of our time. Previously, artesunate (AS) has been reported to exert antibacterial enhancement activity in combination with \u03b2-lactam antibiotics via inhibition of the efflux pump AcrB. However, combination of AS and colistin (COL) revealed a weak synergistic effect against a limited number of strains, and few studies have further explored its possible mechanism of synergistic action. In this article, we found that AS and EDTA could strikingly enhance the antibacterial effects of COL against\n                    <jats:italic>mcr-1<\/jats:italic>\n                    <jats:sup>-<\/jats:sup>\n                    and\n                    <jats:italic>mcr-1<\/jats:italic>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:italic>Salmonella<\/jats:italic>\n                    strains either in vitro or in vivo, when used in triple combination. The excellent bacteriostatic effect was primarily related to the increased cell membrane damage, accumulation of toxic compounds and inhibition of MCR-1. The potential binding sites of AS to MCR-1 (THR283, SER284, and TYR287) were critical for its inhibition of MCR-1 activity. Additionally, we also demonstrated that the CheA of chemosensory system and virulence-related protein SpvD were critical for the bacteriostatic synergistic effects of the triple combination. Selectively targeting CheA, SpvD, or MCR using the natural compound AS could be further investigated as an attractive strategy for the treatment of\n                    <jats:italic>Salmonella<\/jats:italic>\n                    infection. Collectively, our work opens new avenues toward the potentiation of COL and reveals an alternative drug combination strategy to overcome COL-resistant bacterial infections.\n                  <\/jats:p>","DOI":"10.7554\/elife.99130","type":"journal-article","created":{"date-parts":[[2024,9,3]],"date-time":"2024-09-03T13:27:02Z","timestamp":1725370022000},"update-policy":"https:\/\/doi.org\/10.7554\/elife.99130","source":"Crossref","is-referenced-by-count":2,"title":["Artesunate, EDTA, and colistin work synergistically against MCR-negative and -positive colistin-resistant Salmonella"],"prefix":"10.7554","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-2218-4819","authenticated-orcid":true,"given":"Yajun","family":"Zhai","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04eq83d71","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pharmacology and Toxicology, College of Veterinary Medicine, Henan Agricultural 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