Drug for treating states related to the inhibition of angiogenesis and/or endothelial cell proliferation

摘要

Soluble recombinant CD44 hyaluronic acid binding domain (CD44HABD) inhibits angiogenesis in vivo in chick and mouse and thereby inhibits human tumor growth of various origins. The anti-angiogenic effect of CD44-HABD is independent of hyaluronic acid (HA) binding, since non-HA-binding mutants of CD44HABD still maintain anti-angiogenic properties. The invention discloses soluble non glycosylated CD44 recombinant proteins as a novel class of angiogenesis inhibitors based on targeting of vascular cell surface receptor. A method of block of angiogenesis and treatment of human tumors using recombinant CD44 proteins as well as their analogues is disclosed. As a further embodiment of the invention, methods for screening for new drug targets using CD44 recombinant proteins and their analogues are presented.