{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T01:33:44Z","timestamp":1780104824371,"version":"3.54.0"},"reference-count":78,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,3,19]],"date-time":"2022-03-19T00:00:00Z","timestamp":1647648000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"United States National Institute of Health","award":["HL142626"],"award-info":[{"award-number":["HL142626"]}]},{"name":"United States National Institute of Health","award":["HL090699"],"award-info":[{"award-number":["HL090699"]}]},{"name":"Hebrew University of Jerusalem and the University of Illinois","award":["Joint Research and Innovation Seed Grant"],"award-info":[{"award-number":["Joint Research and Innovation Seed Grant"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antibiotics"],"abstract":"<jats:p>Antibiotic resistance is one of the greatest crises in human medicine. Increased incidents of antibiotic resistance are linked to clinical overuse and overreliance on antibiotics. Among the ESKAPE pathogens, Acinetobacter baumannii, especially carbapenem-resistant isolates, has emerged as a significant threat in the context of blood, urinary tract, lung, and wound infections. Therefore, new approaches that limit the emergence of antibiotic resistant A. baumannii are urgently needed. Recently, we have shown that random peptide mixtures (RPMs) are an attractive alternative class of drugs to antibiotics with strong safety and pharmacokinetic profiles. RPMs are antimicrobial peptide mixtures produced by incorporating two amino acids at each coupling step, rendering them extremely diverse but still defined in their overall composition, chain length, and stereochemistry. The extreme diversity of RPMs may prevent bacteria from evolving resistance rapidly. Here, we demonstrated that RPMs rapidly and efficiently kill different strains of A. baumannii, inhibit biofilm formation, and disrupt mature biofilms. Importantly, RPMs attenuated bacterial burden in mouse models of acute pneumonia and soft tissue infection and significantly reduced mouse mortality during sepsis. Collectively, our results demonstrate RPMs have the potential to be used as powerful therapeutics against antibiotic-resistant A. baumannii.<\/jats:p>","DOI":"10.3390\/antibiotics11030413","type":"journal-article","created":{"date-parts":[[2022,3,20]],"date-time":"2022-03-20T21:25:00Z","timestamp":1647811500000},"page":"413","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Antimicrobial Random Peptide Mixtures Eradicate Acinetobacter baumannii Biofilms and Inhibit Mouse Models of Infection"],"prefix":"10.3390","volume":"11","author":[{"given":"Hannah E.","family":"Caraway","sequence":"first","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan Z.","family":"Lau","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bar","family":"Maron","sequence":"additional","affiliation":[{"name":"Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Myung Whan","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yael","family":"Belo","sequence":"additional","affiliation":[{"name":"Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aya","family":"Brill","sequence":"additional","affiliation":[{"name":"Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Einav","family":"Malach","sequence":"additional","affiliation":[{"name":"Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nahed","family":"Ismail","sequence":"additional","affiliation":[{"name":"Department of Pathology, College of Medicine, University of Illinois at Chicago, 840 South Wood Street, Chicago, IL 60612, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zvi","family":"Hayouka","sequence":"additional","affiliation":[{"name":"Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gee W.","family":"Lau","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Hay, S.I., Rao, P.C., Dolecek, C., Day, N.P.J., Stergachis, A., Lopez, A.D., and Murray, C.J.L. (2018). Measuring and mapping the global burden of antimicrobial resistance. 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