Novel anti-aging peptides and cosmetic and / or pharmaceutical composition containing them

摘要

Peptide compound of the following general formula (I): R1-X1-X2-Ser-Pro-Leu-Gln-X3-X4-R2 in which, X1 represents a cysteine, a methionine, or is equal to zero X2 represents a serine , a threonine, or is equal to zero, X3 represents an alanine, a glycine, an isoleucine, a leucine, a proline, a valine or is equal to zero, X4 represents an asparagine, a glutamine, or is equal to zero. R1 represents the primary amine function of the N-terminal amino acid, free or substituted by a protecting group that may be selected from an acetyl group, a benzoyl group, a tosyl group or a benzyloxycarbonyl group, R2 represents the hydroxyl group of the carboxyl function of the C-terminal amino acid, free or substituted by a protecting group that may be selected from a C1 to C20 alkyl chain, or an NH2, NHY or NYY group in which Y represents a C1 to C4 alkyl chain, said sequence being constituted of general formula (I) for 4 to 8 amino acid residues.