The present invention relates to a proteinaceous construct (also designated as polymer-VWF-conjugate) comprising plasmatic and/or recombinant von Willebrand factor (VWF), said VWF being bound to at least one physiologically acceptable polymer molecule, as well as to a complex between said proteinaceous construct and at least one factor VIII (FVIII) protein. The physiologically acceptable polymer molecule can be, for instance, polyethylene glycol (PEG) or polysialic acid (PSA). Further the present invention relates to methods for prolonging the in vivo-half-life of VWF or FVIII in the blood of a mammal having a bleeding disorder associated with functional defects of or deficiencies of at least one of FVIII or VWF.
本发明涉及一种蛋白质构造物(也称为聚合物-VWF-结合物),包括血浆和/或
重组的von Willebrand因子(VWF),所述VWF与至少一种生理可接受的聚合物分子结合,以及所述蛋白质构造物与至少一种因子VIII(FVIII)蛋白复合物之间的复合物。生理可接受的聚合物分子可以是聚
乙二醇(P
EG)或聚
唾液酸(P
SA)等。此外,本发明还涉及延长具有与FVIII或VWF的功能缺陷或缺陷相关的出血障碍哺乳动物的血液中VWF或FVIII在体内半衰期的方法。