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    • 43. 发明申请
    • MODIFIED PLASMINOGEN ACTIVATOR INHIBITOR TYPE-1 AND METHODS BASED THEREON
    • 改良的PLASMINOGEN激活剂抑制剂类型1及其方法
    • WO2003080646A2
    • 2003-10-02
    • PCT/US2003/006679
    • 2003-03-04
    • MEDICAL COLLEGE OF OHIOSWIERCZ, RafalSELMAN, Steven, H.JANKUN, Jerzy
    • SWIERCZ, RafalSELMAN, Steven, H.JANKUN, Jerzy
    • C07K
    • C07K14/8132A61K38/00
    • The present invention is based upon the discovery that modified plasminogen activator inhibitor type-I (PAI-1) in which two or more amino acid residues that do not contain a sulfliydryl group have been replaced with amino acid residues that contain a sulfhydryl group and, therefore, forms intramolecular disulfide bonds, have increased in vivo half-life. Also disclosed are the modified PAI-1 proteins, derivatives and analogs thereof, specific antibodies, nucleic acid molecules and host cells. Methods for producing modified PAI-1, derivatives and analogs are also provided. The invention further relates to Therapeutics, pharmaceutical compositions and method of using the composition for treatment. The invention may be used to inhibit angiogenesis in a subject, thereby treating diseases or conditions associated with undesired angiogenesis and cell proliferation. Such conditions include psoriasis, chronic inflammation, tumor invasion and metastasis and conditions in which angiogenesis is pathogenic. The modified PAI-1 molecules of the present invention are useful for the treatment, prophylaxis, management and amelioration of cardiovascular diseases such as, but not limited to those that are related to hyerfibrinolysis, hemophilia, and vessel leakage syndrome.
    • 本发明基于以下发现:其中两个或更多个不含磺酰基基团的氨基酸残基已经被含有巯基的氨基酸残基替代的修饰的纤溶酶原激活物抑制剂I型(PAI-1) 因此,形成分子内二硫键,体内半衰期有所增加。 还公开了修饰的PAI-1蛋白,其衍生物和类似物,特异性抗体,核酸分子和宿主细胞。 还提供了生产改性PAI-1,衍生物和类似物的方法。 本发明还涉及使用该组合物进行治疗的治疗剂,药物组合物和方法。 本发明可以用于抑制受试者的血管生成,从而治疗与不期望的血管生成和细胞增殖相关的疾病或病症。 这些病症包括牛皮癣,慢性炎症,肿瘤浸润和转移以及血管发生是致病性的病症。 本发明的修饰的PAI-1分子可用于治疗,预防,治疗和改善心血管疾病,例如但不限于与血纤维蛋白溶解,血友病和血管渗漏综合征相关的那些。