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
    • 7. 发明公开
    • METHODS OF PRODUCING LONG ACTING CTP-MODIFIED POLYPEPTIDES
    • EP4212546A1
    • 2023-07-19
    • EP22209083.9
    • 2015-12-10
    • OPKO Biologics Ltd.
    • HERSHKOVITZ, OrenMOSCHCOVICH, Laura
    • C07K14/61C07K14/59A61K38/00C12N9/64
    • A method of manufacturing a highly glycosylated human chorionic gonadotropin carboxy terminal peptide (CTP)-modified polypeptide that is glycosylated at between 13 and 18 O-linked glycosylation sites, the method comprising stably transfecting a predetermined number of cells with an expression vector comprising a coding portion encoding the CTP-modified polypeptide, wherein the polypeptide is a coagulation Factor VII (FVII) or an activated coagulation Factor VII (FVIIa), wherein the CTP-modified polypeptide consists of three CTP units attached to the carboxy terminus of the FVII or the FVIIa, and the transfected cells express and secrete the CTP-modified polypeptide; obtaining cell clones that overexpress the CTP-modified polypeptide; expanding the clones in solution to a predetermined scale and the clones are obtained from a working cell bank (WCB) or master cell bank (MCB) that optimally expresses and secretes the CTP-modified polypeptide; harvesting the solution containing the clones; filtering the solution containing the clones to obtain a clarified harvest solution; and purifying the clarified harvest solution to obtain a purified protein solution of the CTP-modified polypeptide, wherein at least 70% of the purified CTP-modified polypeptide is the highly glycosylated form.