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    • 1. 发明申请
    • Cd44 variants carrying heparan sulfate chains and uses thereof
    • 携带硫酸乙酰肝素链的Cd44变体及其用途
    • US20050054560A1
    • 2005-03-10
    • US10486226
    • 2002-08-08
    • Avner YayonShlomo NedvetzkiDavid NaorItshak Golan
    • Avner YayonShlomo NedvetzkiDavid NaorItshak Golan
    • A61K38/00C07K14/705A61K38/17A61K31/727
    • C07K14/70585A61K38/00C07K2319/00C07K2319/30
    • Modulation of the activity of a heparin-binding growth factor (HBGF) by enhancing or inhibiting high affinity binding of said HBGF to its receptor, can be achieved with an agent selected from: (i) a soluble CD44 isoform carrying at least one chain of a heparan sulfate; (ii) a recombinant chimeric fusion protein comprising the amino acid sequence of a soluble CD44 isoform fused to a tag suitable for proteoglycan purification, said fusion molecule being post-translationally glycosylated to carry at least one chain of a heparan sulfate; and (iii) a sugar molecule being a heparan sulfate derived from a CD44 isoform, or a fragment thereof. The agents (i) and (ii) when the soluble CD44 isoform is the soluble CD44 variant expressed in synovial cells of rheumatoid arthritis patients (CD44vRA), and the heparan sulfate of (iii), are novel.
    • 通过增强或抑制所述HBGF与其受体的高亲和力结合来调节肝素结合生长因子(HBGF)的活性可以用选自以下的试剂来实现:(i)携带至少一条链的可溶性CD44亚型 硫酸乙酰肝素; (ii)重组嵌合融合蛋白,其包含与适于蛋白多糖纯化的标签融合的可溶性CD44同种型的氨基酸序列,所述融合分子被翻译后糖基化以携带至少一种硫酸乙酰肝素链; 和(iii)衍生自CD44同种型的硫酸乙酰肝素的糖分子或其片段。 当可溶性CD44同种型是在类风湿性关节炎患者(CD44vRA)的滑膜细胞中表达的可溶性CD44变体和(iii)的硫酸乙酰肝素时,试剂(i)和(ii)是新颖的。
    • 10. 发明申请
    • Binding agents for CD44 glycoproteins and methods of use
    • CD44糖蛋白的结合剂及其使用方法
    • US20080139460A1
    • 2008-06-12
    • US11907893
    • 2007-10-18
    • Lora MelnikItshak GolanDavid NaorYehiel Zick
    • Lora MelnikItshak GolanDavid NaorYehiel Zick
    • A61K38/16A61P43/00
    • A61K38/1709
    • The present invention is based on the finding that Gal-8 binds to carbohydrates of cell surface CD44std and CD44v and activates a chain of biological events within the cells. A specific effect exhibited was the induction of apoptosis in the CD44std and CD44v expressing cells.Thus, the present invention concerns the use of an active agent for achieving a therapeutic effect on a target cell, the therapeutic effect comprises binding of said active agent to a standard CD44 (CD44std) glycoprotein or to a CD44 variant (CD44v) expressed by said target cell, the active agent being galectin-8 (Gal-8) or a functional derivative thereof. The active ingredient may be used for the preparation of a pharmaceutical composition, for the treatment of a disease or a disorder or for diagnostic purposes.
    • 本发明基于Gal-8与细胞表面CD44std和CD44v的碳水化合物结合并激活细胞内生物学事件链的发现。 具体表现为CD44std和CD44v表达细胞凋亡诱导。 因此,本发明涉及活性剂用于实现对靶细胞的治疗作用的用途,治疗效果包括将所述活性剂与标准CD44(CD44std)糖蛋白或由所述的CD44(CD44std)糖蛋白表达的CD44变体(CD44v)的结合 靶细胞,活性剂是半乳凝素-8(Gal-8)或其功能性衍生物。 活性成分可用于制备药物组合物,用于治疗疾病或病症或用于诊断目的。