Designed α-sheet peptides disrupt uropathogenic E. coli biofilms rendering bacteria susceptible to antibiotics and immune cells

A Bleem, T Prosswimmer, R Chen, TF Hady, J Li… - Scientific Reports, 2023 - nature.com
Uropathogenic Escherichia coli account for the largest proportion of nosocomial infections in
the United States. Nosocomial infections are a major source of increased costs and …

Designed De Novo α-Sheet Peptides Destabilize Bacterial Biofilms and Increase the Susceptibility of E. coli and S. aureus to Antibiotics

T Prosswimmer, SE Nick, JD Bryers… - International Journal of …, 2024 - mdpi.com
Biofilm-associated microbes are 10–1000 times less susceptible to antibiotics. An emerging
treatment strategy is to target the structural components of biofilm to weaken the extracellular …

Structural insights into curli CsgA cross-β fibril architecture inspire repurposing of anti-amyloid compounds as anti-biofilm agents

S Perov, O Lidor, N Salinas, N Golan… - PLoS …, 2019 - journals.plos.org
Curli amyloid fibrils secreted by Enterobacteriaceae mediate host cell adhesion and
contribute to biofilm formation, thereby promoting bacterial resistance to environmental …

Cell-Based High-Throughput Screening Identifies Rifapentine as an Inhibitor of Amyloid and Biofilm Formation in Escherichia coli

MC Maher, JY Lim, C Gunawan… - ACS infectious …, 2015 - ACS Publications
Escherichia coli assemble functional amyloid fibers termed curli that contribute to bacterial
adhesion, biofilm formation, and host pathogenesis. We developed a cell-based high …

[HTML][HTML] Sequence-targeted peptides divert Functional Bacterial Amyloid towards destabilized aggregates and reduce biofilm formation

TV Sønderby, NN Louros, L Khodaparast… - Journal of Molecular …, 2023 - Elsevier
Functional bacterial amyloid provides structural stability in biofilm, making it a promising
target for anti-biofilm therapeutics. Fibrils formed by CsgA, the major amyloid component in …

[HTML][HTML] Disruption of drug-resistant biofilms using de novo designed short α-helical antimicrobial peptides with idealized facial amphiphilicity

JS Khara, S Obuobi, Y Wang, MS Hamilton… - Acta Biomaterialia, 2017 - Elsevier
The escalating threat of antimicrobial resistance has increased pressure to develop novel
therapeutic strategies to tackle drug-resistant infections. Antimicrobial peptides have …

Curli Amyloid Fibers in Escherichia coli Biofilms: The Influence of Water Availability on their Structure and Functional Properties

M Siri, A Mangiarotti… - Macromolecular …, 2024 - Wiley Online Library
Escherichia coli biofilms consist of bacteria embedded in a self‐produced matrix mainly
made of protein fibers and polysaccharides. The curli amyloid fibers found in the biofilm …

Nordihydroguaiaretic acid (NDGa) inhibits CsgA polymerization, bacterial amyloid biogenesis, and biofilm formation

JA Visser, D Yager, SA Chambers, JY Lim… - …, 2023 - Wiley Online Library
Escherichia coli and other Enterobacteriaceae thrive in robust biofilm communities through
the coproduction of curli amyloid fibers and phosphoethanolamine cellulose. Curli promote …

Small-molecule inhibitors target Escherichia coli amyloid biogenesis and biofilm formation

L Cegelski, JS Pinkner, ND Hammer… - Nature chemical …, 2009 - nature.com
Curli are functional extracellular amyloid fibers produced by uropathogenic Escherichia coli
(UPEC) and other Enterobacteriaceae. Ring-fused 2-pyridones, such as FN075 and BibC6 …

Designed α-sheet peptides suppress amyloid formation in Staphylococcus aureus biofilms

A Bleem, R Francisco, JD Bryers… - npj Biofilms and …, 2017 - nature.com
Nosocomial infections affect hundreds of millions of patients worldwide each year, and~
60% of these infections are associated with biofilm formation on an implanted medical …