Compounds, use thereof in cosmetic and cosmeceutic applications, and compositions comprising same
A compound of the formula I: R-A-Gly-His-B (I) wherein: A and B are independently of each other a L-lysine residue, a D-lysine residue, or a L- or D-lysine residue in which the NH 2 group of the side chain comprises a modification, where-in said modification is (i) a replacement with a hydrogen, (ii) an acetylation, (iii) a benzoylation, or (iv) a palmitoylation; GIy is a glycine residue; His is a L- or D-histidine residue; R is CH 3 —(CH 2 ) n —CO—, wherein n=2, 3, 4, 5, 6, 7 or 8; R′ is a group of formula (II): N(Z)(Z′) (II) wherein: Z and Z′ is hydrogen, a methyl group, an ethyl group, a phenyl group, an hexyl group, a decyl group or an hexadecyl group; or a racemate, an enantiomer or a diastereomer thereof, or mixtures thereof, or a salt thereof.
1. A compound of the formula:
CH 3 —(CH 2 ) 4 —CO-Lys-Gly-His-Lys-NH 2 (SEQ ID NO: 1)
wherein:
each Lys is independently of the other a L- or D-lysine residue;
His is a L- or D-histidine residue;
or a racemate, an enantiomer or a diastereomer thereof, or mixtures thereof, or a salt thereof.
2. The compound of claim 1 , wherein the lysine and histidine residues are in L-configuration.
3. A composition comprising the compound according to claim 1 , and a topically, cosmetically or pharmaceutically acceptable excipient or carrier.
4. The composition of claim 3 , wherein said composition comprises between about 10 −8 M and about 10 −2 M of said compound.
5. The composition of claim 4 , wherein said composition comprises between about 10 −6 M and about 10 −5 M of said compound.
6. The composition of claim 3 , wherein said composition is a topical composition.
7. The composition of claim 3 , wherein said composition is an aqueous solution, a cream, a water-in-oil emulsion, a oil-in-water emulsion, a gel, a spray, an ointment, a lotion, or a paste.
8. The composition of claim 3 , further comprising at least one additional active agent.
9. A method of preventing, reducing, delaying or treating the appearance or presence of (a) wrinkles, (b) fine lines or (c) both (a) and (b), on the skin in a subject, said method comprising administering an effective amount of the compound of claim 1 , to said subject.
10. The method of claim 9 , wherein the administration is topical.
11. The method of claim 9 , wherein said effective amount is between about 10 −8 M and about 10 −2 M of said compound.
12. The method of claim 11 , wherein said effective amount is between about 10 −6 M and about 10 −5 M of said compound.
13. A method for inducing or increasing the production of at least one dermo-epidermal junction (DEJ) molecule in a biological system, said method comprising contacting said biological system with the compound of claim 1 , or the composition of claim 8 .
14. The method of claim 13 , wherein said at least one DEJ molecule is (a) laminin-5, (b) collagen VII, or (c) both (a) and (b).
15. The method of claim 13 , wherein said biological system is a cell, a tissue or an organ.
16. The method of claim 15 , wherein said cell is a skin cell.
17. The method of claim 15 , wherein said organ is skin.
18. A kit or package comprising the compound of claim 1 , together with (i) instructions for preventing, reducing, delaying or treating the appearance or presence of (a) wrinkles, (b) fine lines or (c) both (a) and (b), on the skin in a subject; and/or together with (ii) a container.
19. A kit or package comprising the composition of claim 3 , together with (i) instructions for preventing, reducing, delaying or treating the appearance or presence of (a) wrinkles, (b) fine lines or (c) both (a) and (b), on the skin in a subject; and/or together with (ii) a container.