申请人:UNIV BASEL
公开号:WO2013004716A1
公开(公告)日:2013-01-10
The invention relates to peptide beads comprising amphiphilic bead-forming peptides of the formula R1 (A1)k (A2 D-A3)m (A2)n (A1)l R2, wherein R1 is an amino acid, biotin, an acyl group or hydrogen, R2 is NH2, OH, alkoxy, hydroxyethylamide or an optionally amidated amino acid, or biotin; A1 is a hydrophilic L-amino acid; A2 is an aromatic L-amino acid; A3 is an aliphatic D-amino acid; k and l are, independently of each other, between 0 and 12; m is between 2 and 8; and n is 0 or 1; a mediator peptide of the formula R1 (A1)k (A2 D-A3)m (A2)n (A1)l R2, wherein at least one of the substituents R1, R2 and/or at least one of the amino acids A1 is different from the corresponding substituents R1, R2 and/or amino acids A1 in the peptide forming the peptide beads; and a payload, such as RNA, DNA or hydrophilic drug, furthermore to the use of such peptide beads for the delivery of an active pharmaceutical ingredient into tissue and cells, and the release of the active pharmaceutical ingredient in the tissue or cell causing the desired therapeutic effect.