Anti-bacterial composition, especially for controlling...

A - Human Necessities – 61 – K

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Details

A61K 38/10 (2006.01) A61K 31/70 (2006.01) A61K 31/7048 (2006.01) A61K 38/03 (2006.01) A61K 38/16 (2006.01) A61P 31/04 (2006.01)

Patent

CA 2535745

The invention relates to an anti-bacterial composition, especially for controlling gram-negative bacteria, containing a combination of: a) at least one peptide of between 10 and 25 amino acid residues comprising: i) two positively charged domains with a neutral pH consisting of between 3 and 9 amino acid residues, at least two thirds thereof being cationic amino acids, ii) a group of two to three non-cationic amino acid residues located between said positively charged domains, iii) a group of between 0 and 10, preferably between 0 and 5, amino acid residues selected from the group comprising non-hydrophobic amino acids and positively charged amino acids, located at one of the terminal ends N or C of the peptide, a positively charged amino acid residue, however, not being directly adjacent to the positively charged domains; and b) at least one anti-bacterial compound.

La présente invention a pour objet une composition anti-bactérienne, plus particulièrement dirigée contre les bactéries gram négatif, comprenant l'association: a) d'au moins un peptide de 10 à 25 résidus d'acide aminé comprenant : i) deux domaines chargés positivement à pH neutre constitué de 3 à 9 résidus d'acide aminé dont les deux tiers au moins sont des acides aminés cationiques, ii) entre lesdits domaines chargés positivement, un groupe de deux à trois résidus d'acide aminé non cationique, iii) à l'une et ou l'autre des extrémités N ou C terminale du peptide, un groupe de 0 à 10 et de préférence de 0 à 5 résidus d'acide aminé choisis dans le groupe comprenant des acides aminés non hydrophobes et des acides aminés chargés positivement, mais dans le cas d'un résidu d'acide aminé chargé positivement celui-ci n'est pas directement adjacent aux domaines chargés positivement. b) d'au moins un composé anti-bactérien.

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