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    • 4. 发明申请
    • PRO-PIGMENTING PEPTIDES
    • WO2014080376A3
    • 2014-05-30
    • PCT/IB2013/060390
    • 2013-11-25
    • SEDERMA
    • PESCHARD, OlivierMONDON, Philippe
    • C07K5/103C07K5/093C07K5/087C07K5/083C07K5/097C07K5/078C07K5/062A61K38/00A61Q19/02
    • The invention is directed to the use of at least one peptide of formula: X –(Xaa 1 ) n –Pro* –(Xaa 2 ) m –Y (I) With: -n = 0, 1 or 2; -m =0 or 1and if m = 0 then n ≠ 0 -Xaa is: -An hydrophobic aminoacid selected from Alanine (Ala, A), Valine (Val, V), Methionine (Met, M), Leucine (Leu, L), Isoleucine (Ile, I), Phenylalanine (Phe, F), Proline (Pro, P) and analogues and derivatives thereof; -A polar aminoacid selected from Serine (Ser, S), Threonine (Thr, T), Tyrosine (Tyr, Y), Asparagine (Asn, N), Glutamine (Gln, Q)and analogues and derivatives thereof; or -Glycine (Gly, G); When n = 2 the two aminoacids Xaa 1 can be the same or different; -Xaa 2 is: -An hydrophobic aminoacid selected from Alanine (Ala, A), Valine (Val, V), Methionine (Met, M), Leucine (Leu, L), Isoleucine (Ile, I), Phenylalanine (Phe, F), Proline (Pro, P) and analogues and derivatives thereof; -A basic aminoacid selected from Arginine (Arg, R), Lysine (Lys, K) and Histidine (His, H) and analogues and derivatives thereof; -Glycine (Gly, G) or Serine (Ser, S); -At the N terminal end of the peptide, X is selected from H, -CO-R 1 and -SO 2 -R 1 ; -At the C terminal end of the peptide, Y is selected from OH, OR 1 , NH 2 , NHR 1 or NR 1 R 2 , -R 1 and R 2 being independantly from each other, selected from an alkyle, aryle, aralkyle, alkylaryl, alkoxy and aryloxy group, that can be linear, branched, cyclic, poly-cyclic, non- saturated, hydroxylated, carbonylated, phosphorylated and/or sulphured, with the possibility to have in said group skeleton a O, S and/or N heteroatom; -Pro* corresponding to a Proline, an analogue or derivative thereof; Excluding the peptides where X=H and Y=OH, for a non therapeutical cosmetic pro-pigmenting treatment of skin. The invention also encompasses new tripeptides of formula (I) suitable for a non therapeutical cosmetic treatment of skin.