会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • IDENTIFICATION AND ENGINEERING OF ANTIBODIES WITH VARIANT HEAVY CHAINS AND METHODS OF USING SAME
    • 具有不同重要链条的抗体的鉴定和工程及其使用方法
    • WO2007106707A2
    • 2007-09-20
    • PCT/US2007/063548
    • 2007-03-08
    • MACROGENICS, INC.STAVENHAGEN, Jeffrey
    • STAVENHAGEN, Jeffrey
    • G06F19/00
    • C07K16/44C07K16/283C07K16/2887C07K16/32C07K2317/24C07K2317/72C07K2317/732C07K2317/734Y02A90/26
    • The present invention relates to molecules, particularly polypeptides, more particularly immunoglobulins (e.g., antibodies), comprising a variant heavy chain, which variant heavy chain comprises constant domains from more than one IgG isotype. The variant heavy chain of the invention may further comprise at least one amino acid modification relative to the parental heavy chain, such that the Fc region of said variant heavy chain binds an FcγR with an altered affinity relative to a comparable molecule comprising the wild-type heavy cahin. The molecules of the invention are particularly useful in preventing, treating, or ameliorating one or more symptoms associated with a disease, disorder, or infection. The molecules of the invention are particularly useful for the treatment or prevention of a disease or disorder where an enhanced efficacy of effector cell function (e.g., ADCC) mediated by FcγR is desired, e.g., cancer, infectious disease, and in enhancing the therapeutic efficacy of therapeutic antibodies the effect of which is mediated by ADCC.
    • 本发明涉及包括变体重链的分子,特别是多肽,更特别是包含变体重链的免疫球蛋白(例如抗体),该变体重链包含来自多于一种IgG同种型的恒定结构域。 本发明的变体重链可以进一步包含相对于亲本重链的至少一个氨基酸修饰,使得所述变体重链的Fc区相对于包含野生型的可比分子具有改变的亲和力结合FcγR 型重胡萝卜素。 本发明的分子特别可用于预防,治疗或改善与疾病,病症或感染相关的一种或多种症状。 本发明的分子特别可用于治疗或预防需要由FcγR介导的效应细胞功能增强的功效(例如ADCC)的疾病或病症,例如癌症,感染性疾病,以及在增强 治疗性抗体的治疗功效,其作用由ADCC介导。
    • 4. 发明申请
    • ENGINEERING FC ANTIBODY REGIONS TO CONFER EFFECTOR FUNCTION
    • 工程FC抗体区域协调执行器功能
    • WO2007024249A2
    • 2007-03-01
    • PCT/US2005/040962
    • 2005-11-10
    • MACROGENICS, INC.STAVENHAGEN, JeffreyKOENIG, Scott
    • STAVENHAGEN, JeffreyKOENIG, Scott
    • G01N33/574C07K16/08C07K16/30
    • C07K16/30C07K16/00C07K16/283C07K16/2887C07K16/2896C07K16/32C07K2317/41C07K2317/52C07K2317/72C07K2317/732C07K2317/734C07K2319/30G01N33/574
    • The present invention relates to molecules having a variant FC region, wherein said variant Fc region comprises at least one amino acid modification relative to a wild-type Fc region. These modified molecules confer an effector function to a molecule, where the parent molecule does not detectably exhibit this effector function. In particular, the molecules of the invention have an increased effector cell function mediated by a FCγR, such as, but not limited to, ADCC. In one embodiment, the variant Fc region binds FcγRIIIA and/or FcγRIIA with a greater affinity, relative to a comparable molecule comprising the wild-type Fc region. The molecules of the invention have particular utility in treatment prevention or management of a disease or disorder, such as cancer, in a sub-population of patients, wherein the target antigen is expressed at low levels in the target cell population, in particular, in patients refractory to treatment with an existing therapeutic antibody due to the low level of target antigen expression on the cancer or associated cells.
    • 本发明涉及具有变体FC区的分子,其中所述变体Fc区相对于野生型Fc区包含至少一个氨基酸修饰。 这些修饰的分子赋予分子效应子功能,其中母体分子不可检测地表现出该效应子功能。 特别地,本发明的分子具有由FCγR介导的增加的效应细胞功能,例如但不限于ADCC。 在一个实施方案中,相对于包含野生型Fc区的可比较分子,变体Fc区以更大的亲和力结合FcγRIIIA和/或FcγRIIA。 本发明的分子在治疗预防或管理疾病或病症例如癌症的患者亚群中特别有用,其中靶标抗原在靶细胞群体中以低水平表达,特别是在 由于癌症或相关细胞上的靶抗原表达水平低,用现有治疗性抗体治疗难治的患者。