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    • 6. 发明申请
    • IONIC COMPLEX NANOPARTICLES FOR DETECTING HEPARANASE ACTIVITIES AND METHOD FOR PREPARING THE SAME
    • 用于检测HEPARANASE活性的离子复合纳米颗粒及其制备方法
    • US20100233085A1
    • 2010-09-16
    • US12472405
    • 2009-05-27
    • Ick-Chan KWONKwang-Meyung KIMKui-Won CHOIKyeong-Soon PARKSeul-Ki LEE
    • Ick-Chan KWONKwang-Meyung KIMKui-Won CHOIKyeong-Soon PARKSeul-Ki LEE
    • A61K49/00C12Q1/34
    • C12Q1/34A61K49/0054G01N2333/924
    • Disclosed are Ionic complex nanoparticles for detecting heparanase activities and a method for preparing the same. More specifically, disclosed are Ionic complex nanoparticles for detecting heparanase activities, wherein negative-ion substrate polymers specifically degraded by heparanase and positive-ion biocompatible polymers ionically bind to each other, and fluorophores or quenchers bind to each of the polymers. The ionic complex nanoparticles for detecting heparanase activities may be applied to a method for screening novel drugs such as inhibitors that prevent over-expression of heparanase. Various cells and tissues where over-expression of heparanase occurs may be non-invasively imaged in cancer cells, cancer tissues, and tissues of various inflammatory diseases. Accordingly, the ionic complex nanoparticles for detecting heparanase activities may be effectively used to early diagnose various diseases and incurable diseases including autoimmune diseases such as cancers, osteoarthritis, rheumatoid arthritis, and dementia.
    • 公开了用于检测乙酰肝素酶活性的离子复合纳米粒子及其制备方法。 更具体地,公开了用于检测乙酰肝素酶活性的离子复合纳米颗粒,其中由肝素酶和阳离子生物相容性聚合物特异性降解的负离子底物聚合物彼此离子地结合,并且荧光团或猝灭剂与每种聚合物结合。 用于检测乙酰肝素酶活性的离子络合物纳米颗粒可以应用于筛选新型药物的方法,例如防止肝素酶过度表达的抑制剂。 发生肝素酶过度表达的各种细胞和组织可能在癌细胞,癌组织和各种炎性疾病的组织中非侵入性成像。 因此,用于检测乙酰肝素酶活性的离子络合物纳米颗粒可以有效地用于早期诊断各种疾病和不治之症,包括自身免疫疾病如癌症,骨关节炎,类风湿性关节炎和痴呆。