Peptides for altering osteoblast adhesion

C - Chemistry – Metallurgy – 07 – K

Patent

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C07K 7/06 (2006.01) A61K 38/07 (2006.01) A61K 38/08 (2006.01) A61K 38/10 (2006.01) A61L 27/00 (2006.01) A61L 27/34 (2006.01) C07K 5/033 (2006.01) C07K 5/11 (2006.01) C07K 7/02 (2006.01) C07K 7/08 (2006.01) C12N 5/00 (2006.01) C12N 5/06 (2006.01) A61K 35/12 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2242911

Peptides containing the amino acid sequence, aa1-aa2-aa3-aa4-(Gly)n, devices for implantation coated with the peptides and methods for altering cell adhesion using the peptides are disclosed. The residues aa1, aa2, and aa4 are independently Lys, Arg, Orn or, when the residue is N-terminal, Acp. The residue aa3 is Ala, Gly, Val, Leu, Ile, Ser, Thr, Cys, Met, Asn, Nle, Nva or Abu. The preferred sequence is KRSR. Peptides containing cell adhesion-related sequences can be incorporated into or coated onto substrates to enhance osteoblast adhesion.

L'invention à trait à des peptides comportant la séquence d'acides aminés aa?1¿-aa?2¿-aa?3¿-aa?4¿-(Gly)¿n?, à des dispositifs à implanter, revêtus de ces peptides, ainsi qu'à des procédés permettant de modifier une adhésion cellulaire à l'aide de ces peptides. Les groupes aa?1¿, aa?2¿ et aa?4¿ représentent, de manière indépendante Lys, Arg, Orn ou, lorsque le groupe est N-terminal, Acp. Le groupe aa?3¿ représente Ala, Gly, Val, Leu, Ile, Ser, Thr, Cys, Met, Asn, Nle, Nva ou Abu. La séquence préférée répond à la formulation: KRSR. Il est possible d'incorporer des peptides contenant des séquences relatives à l'adhésion cellulaire à des substrats ou de les en revêtir pour renforcer l'adhérence ostéoblastique.

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