The present invention provides a conjugate wherein GP (glycoprotein) Ib and a lipid are bonded via polyalkylene oxide. The present invention also provides a complex (GPIb lipid complex) containing this conjugate and a free lipid. The GPIb lipid complex is expected to have a potential for practical application in a wide range, as a platelet substitute, a pharmaceutical agent for the prophylaxis or treatment of angiopathy, vascular damage and thrombosis, a diagnostic for vWF deficiency and the like, a biological or medical reagent, a reagent for screening platelet aggregation suppressant or antithrombosis, and the like. The GPIb lipid complex of the present invention is also useful as a diagnostic for finding the location of vascular lesion or thrombus formation, or a therapeutic agent thereof. Moreover, the GPIb lipid complex of the present invention is also superior in retention property in blood, which enables continuous expression of a pharmacological action. The conjugate of the present invention is highly utilizable as an active ingredient of the GPIb lipid complex of the present invention.
本发明提供了一种共轭物,其中 GP(糖蛋白)Ib 和脂质通过聚环氧烷键合在一起。本发明还提供了一种复合物(G
PIb 脂质复合物),其中含有这种共轭物和一种游离脂质。G
PIb 脂质复合物有望在广泛的范围内具有实际应用潜力,可用作血小板替代物、预防或治疗血管病变、血管损伤和血栓形成的药物制剂、vWF 缺乏症等的诊断剂、
生物或医疗试剂、血小板聚集
抑制剂或抗血栓形成筛选试剂等。本发明的 G
PIb 脂质复合物还可用作寻找血管病变或血栓形成位置的诊断试剂或其治疗剂。此外,本发明的 G
PIb 脂质复合物在血液中的保留性能也很优越,可持续发挥药理作用。本发明的共轭物作为本发明 G
PIb 脂质复合物的活性成分具有很高的利用价值。