申请人:UAB Research Foundation
公开号:US04976734A1
公开(公告)日:1990-12-11
A method of stimulating chemotaxis toward a prosthetic device is disclosed, which method comprises incorporating a chemotactic peptide of the formula B.sup.1 -X-(AGVPGLGVG).sub.n -(AGVPGFGVG).sub.m -Y-B.sup.2 wherein A is a peptide-forming residue of L-alanine; P is a peptide-forming residue of L-proline; G is a peptide-forming residue of glycine; V is a peptide-forming residue of L-valine; F is a peptide-forming residue of L-phenylalanine; L is a peptide-forming residue of L-leucine; B.sup.1 is H or a biocompatible N-terminal group; B.sup.2 is OH, OB.sup.3 where B.sup.3 is a non-toxic metal ion, or a biocompatible C-terminal group; X is GVPGFGVG, GVPGLGVG, VPGFGVG, VPGLGVG, PGFGVG, PGLGVG, GFGVG, GLGVG, FGVG, LGVG, GVG, VG, G or a covalent bond; Y is AGVPGFGV, AGVPGLGV, AGVPGFG, AGVPGLG, AGVPGF, AGVPGL, AGVPG, AGVP, AGV, AG, A or a covalent bond; n is an integer from 0 to 50; m is an integer from 0 to 50; with the proviso that when both n and m are O, X and Y are selected so that the chemotactic peptide has at least 3 amino acid residues in the X and Y positions combined; into a surface of a prosthetic device. Prosthetic devices which have the property of enhancing invasion of fibroblasts and endothelial cells as a result of the chemotactic peptide are also disclosed.
公开了一种刺激趋化性朝向假体装置的方法,该方法包括将化趋性肽B.sup.1-X-(AGVPGLGVG).sub.n-(AGVPGFGVG).sub.m-Y-B.sup.2并入假体装置的表面中。其中,A是
L-丙氨酸的肽形成残基;P是
L-脯氨酸的肽形成残基;G是甘
氨酸的肽形成残基;V是
L-缬氨酸的肽形成残基;F是
L-苯丙氨酸的肽形成残基;L是
L-亮氨酸的肽形成残基;B.sup.1是H或
生物相容性N-末端基团;B.sup.2是OH,OB.sup.3,其中B.sup.3是非毒性
金属离子,或
生物相容性C-末端基团;X是GVPGFGVG、GVPGLGVG、VPGFGVG、VPGLGVG、
PGFGVG、
PGLGVG、GFGVG、GLGVG、FGVG、LGVG、GVG、VG、G或共价键;Y是AGVPGFGV、AGVPGLGV、AGVPGFG、AGVPGLG、AGVPGF、AGVPGL、AGVPG、AGVP、AGV、AG、A或共价键;n是0至50的整数;m是0至50的整数;但当n和m都是0时,X和Y被选择为化趋性肽在X和Y位置组合中至少具有3个
氨基酸残基。还公开了具有增强成纤维细胞和内皮细胞侵袭性质的假体装置,其结果是由于化趋性肽的存在。