Disclosed herein are N-aminated variants of Gramicidin S and methods of using the same for treating infections in a subject.

Disclosed herein are N-aminated variants of Gramicidin S and methods of using the same for treating infections in a subject.

Disclosed herein are N-aminated variants of Gramicidin S and methods of using the same for treating infections in a subject.

Disclosed herein are N-aminated variants of Gramicidin S and methods of using the same for treating infections in a subject.

Disclosed herein are N-aminated variants of Gramicidin S and methods of using the same for treating infections in a subject.

Disclosed herein are N-aminated variants of Gramicidin S and methods of using the same for treating infections in a subject.

Disclosed herein are methods and compositions for the treatment and/or prevention of diseases or conditions comprising administration of Gramicidin S peptidyl conjugates (and/or derivatives, analogues, or pharmaceutically acceptable salts thereof), or imidazole-substituted fatty acids (and/or derivatives, analogues, or pharmaceutically acceptable salts thereof), alone or in combination with one or more active agents (e.g., an aromatic-cationic peptide). The present technology provides compositions related to aromatic-cationic peptides linked to imidazole-substituted fatty acids or Gramicidin S peptidyl conjugates of the present technology and uses of the same. In some embodiments, the aromatic-cationic peptide comprises 2,6-dimethyl-Tyr-D-Arg-Phe-Lys-NH.sub.2, Phe-D-Arg-Phe-Lys-NH.sub.2, or D-Arg-2,6-Dmt-Lys-Phe-NH.sub.2.

Disclosed herein are methods and compositions for the treatment and/or prevention of diseases or conditions comprising administration of Gramicidin S peptidyl conjugates (and/or derivatives, analogues, or pharmaceutically acceptable salts thereof), or imidazole-substituted fatty acids (and/or derivatives, analogues, or pharmaceutically acceptable salts thereof), alone or in combination with one or more active agents (e.g., an aromatic-cationic peptide). The present technology provides compositions related to aromatic-cationic peptides linked to imidazole-substituted fatty acids or Gramicidin S peptidyl conjugates of the present technology and uses of the same. In some embodiments, the aromatic-cationic peptide comprises 2,6-dimethyl-Tyr-D-Arg-Phe-Lys-NH.sub.2, Phe-D-Arg-Phe-Lys-NH.sub.2, or D-Arg-2,6-Dmt-Lys-Phe-NH.sub.2.

Novel peptoid oligomers are disclosed that have a formula represented by the following formula I: ##STR00001## The peptoids demonstrate antimicrobial activity and may be prepared as pharmaceutical compositions and used for the prevention or treatment of a variety of conditions in mammals including humans where microbial invasion is involved. The present cyclic and linear peptoids are particularly valuable as their effect is rapid, broad in spectrum and mostly indifferent to resistance provoked by standard antibiotics.

Novel peptoid oligomers are disclosed that have a formula represented by the following formula I: ##STR00001## The peptoids demonstrate antimicrobial activity and may be prepared as pharmaceutical compositions and used for the prevention or treatment of a variety of conditions in mammals including humans where microbial invasion is involved. The present cyclic and linear peptoids are particularly valuable as their effect is rapid, broad in spectrum and mostly indifferent to resistance provoked by standard antibiotics.