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    • 32. 发明申请
    • THERAPEUTIC METHODS EMPLOYING PAI-1 INHIBITORS AND TRANSGENIC NON-HUMAN ANIMAL FOR SCREENING CANDIDATE PAI-1 INHIBITORS
    • 使用PAI-1抑制剂和转基因非人动物筛选候选PAI-1抑制剂的治疗方法
    • WO2003071267A1
    • 2003-08-28
    • PCT/US2003/005008
    • 2003-02-19
    • VANDERBILT UNIVERSITYDECLERCK, Paul, J.VAUGHAN, Douglas, E.EREN, Mesut
    • DECLERCK, Paul, J.VAUGHAN, Douglas, E.EREN, Mesut
    • G01N33/00
    • C12N15/873A01K67/0278A01K2207/15A01K2217/00A01K2217/05A01K2227/105A01K2267/03A01K2267/0312C07K14/8132C12N15/8509C12Q1/56G01N33/566G01N33/68G01N33/6893G01N33/6896G01N33/86G01N2333/8132G01N2500/00
    • A method of treating a warm-blooded vertebrate animal having a medical condition in need of treatment with a composition that exhibits PAI-1 inhibition activity is disclosed. The method includes the steps of administering a treatment effective amount of the composition to a warmblooded vertebrate animal having a medical condition selected from the group consisting of alopecia, undesired weight loss, Alzheimer's Disease, systemic amyloidosis, myelofibrosis, male pattern baldness, glomerulosclerosis, and combinations thereof; and observing an improvement in the medical condition in the warm-blooded vertebrate animal having the medical condition. A method of testing a candidate composition for PAI-1 inhibition activity is also disclosed. The method includes the steps of obtaining a transgenic non-human warm blooded vertebrate animal having incorporated into its genome a PAI-1 gene encoding a biologically active PAI-1 polypeptide, the PAI-1 gene being present in the genome in a copy number effective to confer overexpression in the transgenic non-human animal of the PAI-1 polypeptide; administering the composition to the transgenic non-human animal; and observing the transgenic non-human animal for determination of a change in the transgenic non-human animal indicative of inhibition of the activity of PAI-1. A transgenic non-human animal useful is such a method is also disclosed, as is a PAI-1 transgene construct encoding a biologically active PAI-1 polypeptide useful for preparing the transgenic non-human animal.
    • 公开了一种治疗需要用表现出PAI-1抑制活性的组合物治疗的具有医学病症的温血脊椎动物的方法。 该方法包括以下步骤:将治疗有效量的组合物施用于具有选自脱发,不希望的体重减轻,阿尔茨海默病,全身淀粉样变性,骨髓纤维化,男性型秃发,肾小球硬化和 其组合; 并观察具有医疗状况的温血脊椎动物的医疗状况的改善。 还公开了测试候选组合物用于PAI-1抑制活性的方法。 该方法包括以下步骤:获得在其基因组中掺入了编码生物活性PAI-1多肽的PAI-1基因的转基因非人类温血脊椎动物,所述PAI-1基因以有效的拷贝数存在于基因组中 以在PAI-1多肽的转基因非人动物中赋予过表达; 将所述组合物施用于所述转基因非人动物; 并观察转基因非人动物以测定表达PAI-1活性抑制的转基因非人动物的变化。 还公开了一种有用的转基因非人动物,编码可用于制备转基因非人动物的生物活性PAI-1多肽的PAI-1转基因构建体也是公开的。
    • 38. 发明申请
    • MUTANT PLASMINOGEN ACTIVATOR-INHIBITOR TYPE 1 (PAI-1) AND USES THEREOF
    • 突变型PLASMINOGEN激活剂抑制剂1型(PAI-1)及其用途
    • WO1997039028A1
    • 1997-10-23
    • PCT/US1997006071
    • 1997-04-11
    • AMERICAN NATIONAL RED CROSS
    • AMERICAN NATIONAL RED CROSSLAWRENCE, Daniel, A.STEFANSSON, Steingrimur, P.
    • C07K14/00
    • C07K16/28A61K38/00C07K14/8132C07K2317/77
    • Mutants of the human PAI-1 protein are described which are inhibitors of neutrophil elastase or are inhibitors of vitronectin (Vn)-dependent cell migration. These mutants preferably comprise one or two amino acid substitutions in the reactive center loop of PAI-1, particularly at positions 331 and 346 of the mature protein. These mutants are notable in being resistant to inactivation by elastase, having high affinity for Vn, or both properties. These mutant proteins as pharmaceutical compositions are used to inhibit elastase in a subject, thereby treating a number of disorders associated with elastase activity, most notably emphysema, ARDS, inflammatory lung injury and cystic fibrosis. The mutants which interact with Vn are used to inhibit cell migration in a subject, thereby treating diseases or conditions associated with undesired cell migration and proliferation, particularly of smooth muscle cells. Such conditions include atherosclerosis, post angioplasty restenosis, fibrosis associated with chronic inflammation or chemotherapy, tumor invasion and metastasis and conditions in which angiogenesis is pathogenic. Also disclosed are peptides of such mutant proteins, mutant-specific antibodies, nucleic acid molecules, particularly DNA, encoding the mutant protein and host cells transformed by such nucleic acids.
    • 描述了人PAI-1蛋白的突变体,其是嗜中性粒细胞弹性蛋白酶抑制剂或玻连蛋白(Vn)依赖性细胞迁移的抑制剂。 这些突变体优选在PAI-1的反应中心环中,特别是成熟蛋白的位置331和346处包含一个或两个氨基酸取代。 这些突变体在抵抗对Vn具有高亲和力的弹性蛋白酶的失活或两种性质方面是显着的。 这些作为药物组合物的突变蛋白质用于抑制受试者中的弹性蛋白酶,从而治疗与弹性蛋白酶活性相关的许多障碍,特别是肺气肿,ARDS,炎症性肺损伤和囊性纤维化。 与Vn相互作用的突变体用于抑制受试者中的细胞迁移,从而治疗与不期望的细胞迁移和增殖相关的疾病或病症,特别是平滑肌细胞的增殖。 这些病症包括动脉粥样硬化,血管成形术后再狭窄,与慢性炎症或化学疗法相关的纤维化,肿瘤浸润和转移以及血管发生是致病性的病症。 还公开了这样的突变蛋白质,突变体特异性抗体,核酸分子,特别是DNA,编码由这种核酸转化的突变蛋白质和宿主细胞的肽。