| abstract |
The invention provides diastereomeric peptides with a net positive charge greater than +1, and cyclic analogues thereof, having at least 15 amino acid residues, wherein said residues are selected from: (i) leucine and lysine;, (ii) leucine, lysine and arginine; (iii) glycine, serine, spargine, threonine, or glutamine optionally present at the N-terminus; (iv) and/or lysine, arginine, glycine, or serine optionally present at the C-terminus. The diastereomeric peptides are suitable for treatment of cancer and for treatment, particularly topical treatment, of infections caused by pathogenic organisms such as bacteria and fungi. In addition, they may be used for controlling, mycoplasma infection in cell cultures and for food preservation as food supplements and as alternative to antibiotics for animal nutrition. |