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cc-by-nc-nd (c) Rabanal Anglada, Francesc et al., 2015
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/66210

A bioinspired peptide scaffold with high antibiotic activity and low in vivo toxicity

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Bacterial resistance to almost all available antibiotics is an important public health issue. A major goal in antimicrobial drug discovery is the generation of new chemicals capable of killing pathogens with high selectivity, particularly multi-drug-resistant ones. Here we report the design, preparation and activity of new compounds based on a tunable, chemically accessible and upscalable lipopeptide scaffold amenable to suitable hit-to-lead development. Such compounds could become therapeutic candidates and future antibiotics available on the market. The compounds are cyclic, contain two D-amino acids for in vivo stability and their structures are reminiscent of other cyclic disulfide-containing peptides available on the market. The optimized compounds prove to be highly active against clinically relevant Gram-negative and Gram-positive bacteria. In vitro and in vivo tests show the low toxicity of the compounds. Their antimicrobial activity against resistant and multidrug-resistant bacteria is at the membrane level, although other targets may also be involved depending on the bacterial strain.

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RABANAL ANGLADA, Francesc, GRAU CAMPISTANY, Ariadna, VILA FARRÉS, Xavier, GONZÁLEZ-LINARES, J. (javier), BORRÀS SUÁREZ, Miquel, VILA ESTAPÉ, Jordi, MANRESA PRESAS, Ma. ángeles (maría ángeles), CAJAL VISA, Yolanda. A bioinspired peptide scaffold with high antibiotic activity and low in vivo toxicity. _Scientific Reports_. 2015. Vol. 5, núm. 10558. [consulta: 23 de gener de 2026]. ISSN: 2045-2322. [Disponible a: https://hdl.handle.net/2445/66210]

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