Antimicrobial peptides and methods of use

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/00 (2006.01) A01N 63/02 (2006.01) A01P 1/00 (2006.01) A61K 38/16 (2006.01) A61L 2/16 (2006.01) A61P 31/00 (2006.01)

Patent

CA 2739842

Disclosed herein are antimicrobial peptides with useful and/or superior properties such as specificity, resistance to degradation, antimicrobial activity, desirably low levels of hemolytic activity, and a therapeutic index against a broad range of microorganisms including gram-negative, gram-positive and acid-fast bacteria, fungi and other organisms. Also provided are pharmaceutical compositions comprising these peptides and methods of using such peptides to control microbial growth or to treat or reduce incidence of infections caused by such microorganisms. Also disclosed are peptides at least one or all amino acids in the D configuration. Compositions disclosed herein are useful in the treatment of bacterial, mycobacterial and/or fungal infections or for reducing microbial cell numbers or growth on surfaces or in materials.

La présente invention concerne des peptides antimicrobiens dotés de propriétés utiles et/ou supérieures telles que la spécificité, la résistance à la dégradation, une activité antimicrobienne, des niveaux de préférence faibles dactivité hémolytique, et un indice thérapeutique contre une large gamme de micro-organismes y compris des bactéries gram négatives, gram positives et acido-résistantes, des champignons et dautres micro-organismes. Linvention concerne également des compositions pharmaceutiques comprenant ces peptides et des procédés dutilisation de tels peptides pour contrôler la croissance microbienne ou pour traiter ou réduire lincidence dinfections causées par de tels micro-organismes. Linvention concerne également des peptides dont au moins un ou tous les acides aminés ont la configuration D. Les compositions décrites ici sont utiles dans le traitement dinfections bactériennes, mycobactériennes et/ou fongiques ou pour réduire le nombre de cellules microbiennes ou leur croissance sur des surfaces ou dans des matériaux.

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