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    • 4. 发明申请
    • MODULATORS OF BONE CELL FUNCTION AND USES THEREOF
    • 骨细胞功能调节剂及其用途
    • WO1996019501A1
    • 1996-06-27
    • PCT/US1995016826
    • 1995-12-19
    • OSTEOSA INC.YONEDA, ToshiyukiIZBICKA, ElzbietaMUNDY, Gregory, R.
    • OSTEOSA INC.
    • C07K16/40
    • C12N9/6448A61K38/00C07K14/51C07K16/22
    • A pancreas-derived factor has been identified which lowers serum calcium and inhibits bone resorption, and also stimulates proliferation of MG-63 osteoblast-like cells. The factor has been purified to homogeneity from porcine pancreas and obtained definitive amino acid sequence has been obtained (SEQ ID NO:1). This factor bears homology to a human pancreatic elastase, elastase IIIB. Experiments with recombinant human pancreatic elastase IIIB as well as neutralizing antibodies to human pancreatic elastase IIIB demonstrate that the biological effects of native PX are mimicked by those of recombinant human elastase IIIB both in vitro and in vivo. Numerous diagnostic and therapeutic applications are contemplated, including drug screening assays, test kits for diagnosing and monitoring conditions characterized by changes in bone cell population, and compositions and methods for treating undesirable bone resorption or accretion.
    • 已经鉴定出胰腺衍生因子,其降低血清钙并抑制骨吸收,并且还刺激MG-63成骨细胞样细胞的增殖。 该因子已经从猪胰腺纯化至均质,并获得了确定的氨基酸序列(SEQ ID NO:1)。 该因子与人胰腺弹性蛋白酶弹性蛋白酶IIIB具有同源性。 重组人胰腺弹性蛋白酶IIIB的实验以及人胰腺弹性蛋白酶IIIB的中和抗体证实,天然PX的生物学效应由体外和体内重组人弹性蛋白酶IIIB的生物学效应模拟。 涵盖了许多诊断和治疗应用,包括药物筛选测定,用于诊断和监测以骨细胞群体变化为特征的病症的测试试剂盒,以及用于治疗不期望的骨吸收或增生的组合物和方法。