PMID- 37882623 OWN - NLM STAT- MEDLINE DCOM- 20231113 LR - 20231115 IS - 2373-8227 (Electronic) IS - 2373-8227 (Linking) VI - 9 IP - 11 DP - 2023 Nov 10 TI - Confronting the Threat: Designing Highly Effective bis-Benzimidazolium Agents to Overcome Biofilm Persistence and Antimicrobial Resistance. PG - 2202-2214 LID - 10.1021/acsinfecdis.3c00289 [doi] AB - The objective of this study is to take the initial steps toward developing novel antibiotics to counteract the escalating problem of antimicrobial and bacterial persistence, particularly in relation to biofilms. Our approach involves emulating the structural characteristics of cationic antimicrobial peptides. To circumvent resistance development, we have designed a library of bis-benzimidazolium salts that selectively target the microbial membranes in a nonspecific manner. To explore their structure-activity relationship, we conducted experiments using these compounds on various pathogens known for their resistance to conventional antibiotics, including Gram-positive methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus faecium (VRE), and Gram-negative Escherichia coli (E. coli). Notably, two bis-benzimidazolium salts exhibited robust antimicrobial activity while maintaining a high level of selectivity compared with mammalian cells. Our investigations revealed significant antibiofilm activity, as these compounds rapidly acted against established biofilms. In addition, bis-benzimidazolium compounds exhibited consistent results in resistance development and cross-resistance studies. Consequently, amphiphilic bis-benzimidazolium salts hold promise as potential candidates to combat resistance-associated infections. FAU - Petit, Maude AU - Petit M AD - Departement de Chimie, Faculte des Arts et des Sciences, Universite de Montreal, Campus MIL, 1375, Ave. Therese Lavoie-Roux, Montreal, Quebec H2 V 0B3, Canada. FAU - Tessier, Jeremie AU - Tessier J AD - Departement de Chimie, Faculte des Arts et des Sciences, Universite de Montreal, Campus MIL, 1375, Ave. Therese Lavoie-Roux, Montreal, Quebec H2 V 0B3, Canada. AD - College Bois-de-Boulogne, 10555 Ave. de Bois-de-Boulogne, Montreal H4N 1L4, Canada. FAU - Sahli, Celia AU - Sahli C AUID- ORCID: 0000-0002-5548-4909 AD - Departement de Chimie, Faculte des Arts et des Sciences, Universite de Montreal, Campus MIL, 1375, Ave. Therese Lavoie-Roux, Montreal, Quebec H2 V 0B3, Canada. AD - CNRS-UMR 7086, Interfaces, Traitements, Organisation et Dynamique des Systemes (ITODYS), Universite Paris Cite, Paris 75013 , France. FAU - Schmitzer, Andreea R AU - Schmitzer AR AUID- ORCID: 0000-0002-3806-9076 AD - Departement de Chimie, Faculte des Arts et des Sciences, Universite de Montreal, Campus MIL, 1375, Ave. Therese Lavoie-Roux, Montreal, Quebec H2 V 0B3, Canada. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20231026 PL - United States TA - ACS Infect Dis JT - ACS infectious diseases JID - 101654580 RN - 0 (Anti-Bacterial Agents) RN - 0 (Salts) RN - 0 (Anti-Infective Agents) SB - IM MH - Animals MH - Anti-Bacterial Agents/pharmacology/chemistry MH - *Methicillin-Resistant Staphylococcus aureus MH - Salts MH - Escherichia coli MH - Drug Resistance, Bacterial MH - *Anti-Infective Agents/pharmacology MH - *Bacterial Infections MH - Biofilms MH - Mammals OTO - NOTNLM OT - antibiofilm agents OT - antimicrobials OT - bacterial resistance OT - bis-benzimidazolium salts OT - cross-resistance OT - quaternary ammoniums EDAT- 2023/10/26 12:42 MHDA- 2023/11/13 06:42 CRDT- 2023/10/26 09:33 PHST- 2023/11/13 06:42 [medline] PHST- 2023/10/26 12:42 [pubmed] PHST- 2023/10/26 09:33 [entrez] AID - 10.1021/acsinfecdis.3c00289 [doi] PST - ppublish SO - ACS Infect Dis. 2023 Nov 10;9(11):2202-2214. doi: 10.1021/acsinfecdis.3c00289. Epub 2023 Oct 26.