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公开(公告)号:US5985281A
公开(公告)日:1999-11-16
申请号:US860882
申请日:1997-06-23
申请人: Christopher John Taylorson , Hendrikus Johannes Eggelte , Antonio Tarragona-Fiol , Brian Robert Rabin , Francis Thomas Boyle , John Frederick Hennam , David Charles Blakey , Peter Robert Marsham , David William Heaton , David Huw Davies , Anthony Michael Slater , Laurent Francois Andre Hennequin
发明人: Christopher John Taylorson , Hendrikus Johannes Eggelte , Antonio Tarragona-Fiol , Brian Robert Rabin , Francis Thomas Boyle , John Frederick Hennam , David Charles Blakey , Peter Robert Marsham , David William Heaton , David Huw Davies , Anthony Michael Slater , Laurent Francois Andre Hennequin
IPC分类号: C12N15/09 , A61K31/70 , A61K31/7042 , A61K31/7052 , A61K31/7064 , A61K31/7068 , A61K31/7072 , A61K39/00 , A61K39/395 , A61K47/48 , A61K48/00 , A61P35/00 , C07H19/10 , C12N1/21 , C12N9/48 , C12P21/02 , C12P21/08 , C12R1/19
CPC分类号: B82Y5/00 , A61K47/48761 , C12N9/48
摘要: A two component system for therapeutic treatment of a host, having a first component comprising a targeting moiety capable of binding with a tumour associated antigen, linked to a mutated enzyme capable of converting a prodrug into an antineoplastic drug, and a second component comprising a prodrug convertible under the influence of the mutated enzyme to the antineoplastic drug. The mutated enzyme is a mutated form of a natural host enzyme which recognizes its natural substrate by an ion pair interaction with the substrate, wherein the mutated enzyme and prodrug have structures such that the polarity of the mutated enzyme/prodrug ion pair interaction is reversed relative to the natural host enzyme/natural substrate ion pair interaction. The first component is substantially non-immunogenic in the host and the prodrug second component is not significantly convertible into antineoplastic drug in the host by natural unmutated host enzyme.
摘要翻译: PCT No.PCT / GB95 / 02991 Sec。 371日期:1997年6月23日 102(e)日期1997年6月23日PCT 1995年12月21日PCT PCT。 公开号WO96 / 20011 PCT 日期1996年7月4日用于治疗性治疗宿主的双组分系统,其具有包含能够与肿瘤相关抗原结合的靶向部分的第一组分,所述靶向部分与能够将前药转化成抗肿瘤药物的突变酶连接, 第二组分包含在突变酶的影响下可转化成抗肿瘤药物的前药。 突变酶是天然宿主酶的突变形式,其通过与底物的离子对相互作用识别其天然底物,其中突变的酶和前药具有使突变的酶/前药离子对相互作用的极性相反的结构 到天然宿主酶/天然底物离子对相互作用。 第一组分在宿主中基本上是非免疫原性的,并且前药第二组分在宿主中不能通过天然未突变的宿主酶显着转化成抗肿瘤药物。