Bifunctional peptide

摘要

The present invention concerns a bifunctional peptide capable of activating collagen synthesis and inhibiting the production of matrix metalloproteinases, said peptide having a sequence comprising three peptide parts A, B and C: - the first peptide part A corresponding to a hexapeptide repeated at least three times, said part A being capable of bonding to a receptor elastin-binding protein in order to stimulate collagen synthesis, the second peptide part B corresponding to a tetrapeptide capable of acting as a competitive inhibitor of urokinase protease and of being cleaved by said protease, and, the third peptide part C corresponding to a tripeptide occupying at least one active site of the matrix metalloproteinases in order to enable inhibition of said proteinases. The present invention further concerns a cosmetic and/or pharmaceutical composition incorporating the bifunctional peptide.