Novel antiangiogenic peptides, polynucleotides encoding same and methods for inhibiting angiogenesis

摘要

Compounds of formulae (I) and (II), and their salts, esters and prodrugs, are new: A-B-C-X-Y (I); A-B1-C1-X1-Y (II); A = absent or a nitrogen-protecting group; Y = absent or a carboxy-protecting group; B = absent or 1-197 naturally occurring amino acids (aa) corresponding to residues 334-530 of the 791 aa human plasminogen (hPA) sequence given in the specification; C = Lys-R2-R3-Asp; R2 = Leu or Arg; R3 = Tyr, 3-iodotyrosinyl (ITyr) or Phe; X = absent or is 1-12 naturally occurring aa corresponding to residues 535-546 of hP and its homologues or analogues; B1 = absent or is 1-176 aa corresponding to residues 334-513 of hP; C1 = the 514-523 aa sequence of hP; X1 = absent or is 1-10 aa corresponding to residues 524-533 of hP.