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
    • Modulating pH-sensitive binding using non-natural amino acids
    • 使用非天然氨基酸调节pH敏感结合
    • US20050260711A1
    • 2005-11-24
    • US11094625
    • 2005-03-30
    • Deepshikha DattaWilliam GoddardDavid TirrellJoyce Peng
    • Deepshikha DattaWilliam GoddardDavid TirrellJoyce Peng
    • C07H21/04C07K16/32C07K16/44C12N5/06C12P21/06
    • C07K16/32
    • The invention provides methods, systems and reagents for regulating pH-sensitive protein interaction by incorporating non-natural amino acids into the protein (e.g. an antibody, or its functional fragment, derivative, etc.). The invention also relates to specific uses in regulating pH-sensitive binding of antibodies to tumor site, by conferring enhanced tumor-specificity/selectivity. In that embodiment, the non-natural amino acids preferably have desirable side-chain pKa's, such that at below physiological pH (e.g. about pH 6.3-6.5) the non-natural amino acid confer enhanced binding to tumor antigens in acidic environments. Such non-natural amino acids can be incorporated by any suitable means, such as by utilizing a modified aminoacyl-tRNA synthetase to charge the nonstandard amino acid to a modified tRNA, which forms strict Watson-Crick base-pairing with a codon that normally forms wobble base-pairing with natural tRNAs (e.g. the degenerate codon orthogonal system.
    • 本发明提供了通过将非天然氨基酸掺入蛋白质(例如抗体或其功能片段,衍生物等)来调节pH敏感蛋白质相互作用的方法,系统和试剂。 本发明还涉及通过赋予增强的肿瘤特异性/选择性来调节抗体对肿瘤部位的pH敏感结合的具体用途。 在该实施方案中,非天然氨基酸优选具有所需的侧链pKa,使得在低于生理pH(例如约pH 6.3-6.5)下,非天然氨基酸在酸性环境中赋予增强的与肿瘤抗原的结合。 这样的非天然氨基酸可以通过任何合适的方式并入,例如通过利用修饰的氨酰-tRNA合成酶将非标准氨基酸装入修饰的tRNA,其与通常形成的密码子形成严格的沃森 - 克里克碱基配对 与天然tRNA的摆动碱基配对(如简并密码子正交系统)。
    • 4. 发明申请
    • MODULATING PH-SENSITIVE BINDING USING NON-NATURAL AMINO ACIDS
    • 使用非天然氨基酸调节敏感性结合
    • US20090035836A1
    • 2009-02-05
    • US12147379
    • 2008-06-26
    • Deepshikha DattaWilliam A. GoddardDavid TirrellJoyce Yaochun Peng
    • Deepshikha DattaWilliam A. GoddardDavid TirrellJoyce Yaochun Peng
    • C12N7/00C07K2/00C07K16/00
    • C07K16/32
    • The invention provides methods, systems and reagents for regulating pH-sensitive protein interaction by incorporating non-natural amino acids into the protein (e.g. an antibody, or its functional fragment, derivative, etc.). The invention also relates to specific uses in regulating pH-sensitive binding of antibodies to tumor site, by conferring enhanced tumor-specificity/selectivity. In that embodiment, the non-natural amino acids preferably have desirable side-chain pKa's, such that at below physiological pH (e.g. about pH 6.3-6.5) the non-natural amino acid confer enhanced binding to tumor antigens in acidic environments. Such non-natural amino acids can be incorporated by any suitable means, such as by utilizing a modified aminoacyl-tRNA synthetase to charge the nonstandard amino acid to a modified tRNA, which forms strict Watson-Crick base-pairing with a codon that normally forms wobble base-pairing with natural tRNAs (e.g. the degenerate codon orthogonal system.
    • 本发明提供了通过将非天然氨基酸掺入蛋白质(例如抗体或其功能片段,衍生物等)来调节pH敏感蛋白质相互作用的方法,系统和试剂。 本发明还涉及通过赋予增强的肿瘤特异性/选择性来调节抗体对肿瘤部位的pH敏感结合的具体用途。 在该实施方案中,非天然氨基酸优选具有所需的侧链pKa,使得在低于生理pH(例如约pH 6.3-6.5)下,非天然氨基酸在酸性环境中赋予增强的与肿瘤抗原的结合。 这样的非天然氨基酸可以通过任何合适的方式并入,例如通过利用修饰的氨酰-tRNA合成酶将非标准氨基酸装入修饰的tRNA,其与通常形成的密码子形成严格的沃森 - 克里克碱基配对 与天然tRNA的摆动碱基配对(如简并密码子正交系统)。
    • 10. 发明授权
    • Enhanced transport using membrane disruptive agents
    • 增强运输使用膜破坏剂
    • US06835393B2
    • 2004-12-28
    • US09226044
    • 1999-01-05
    • Allan S. HoffmanPatrick StaytonOliver W. PressDavid TirrellNiren MurthyChantal LackeyLawrence A. CrumPierre D. MouradTyrone M. Porter
    • Allan S. HoffmanPatrick StaytonOliver W. PressDavid TirrellNiren MurthyChantal LackeyLawrence A. CrumPierre D. MouradTyrone M. Porter
    • A61K9127
    • A61K47/481A61K41/0028A61K41/0047A61K47/48376A61K47/6801
    • Compositions and methods for transport or release of therapeutic and diagnostic agents or metabolites or other analytes from cells, compartments within cells, or through cell layers or barriers are described. The compositions include a membrane barrier transport enhancing agent and are usually administered in combination with an enhancer and/or exposure to stimuli to effect disruption or altered permeability, transport or release. In a preferred embodiment, the compositions include compounds which disrupt endosomal membranes in response to the low pH in the endosomes but which are relatively inactive toward cell membranes, coupled directly or indirectly to a therapeutic or diagnostic agent. Other disruptive agents can also be used, responsive to stimuli and/or enhancers other than pH, such as light, electrical stimuli, electromagnetic stimuli, ultrasound, temperature, or combinations thereof. The compounds can be coupled by ionic, covalent or H bonds to an agent to be delivered or to a ligand which forms a complex with the agent to be delivered. Agents to be delivered can be therapeutic and/or diagnostic agents. Treatments which enhance delivery such as ultrasound, iontopheresis, and/or electrophereis can also be used with the disrupting agents.
    • 描述了用于从细胞,细胞内的细胞室或通过细胞层或屏障转运或释放治疗和诊断试剂或代谢物或其它分析物的组合物和方法。 组合物包括膜屏障转运增强剂,并且通常与增强剂和/或暴露于刺激物一起施用以实现破坏或改变渗透性,运输或释放。 在优选的实施方案中,组合物包括响应于内体中的低pH而破坏内体膜的化合物,但是与细胞膜相对无活性的化合物,直接或间接地与治疗剂或诊断剂偶联。 还可以使用其它破坏剂,对除了pH之外的刺激和/或增强剂如光,电刺激,电磁刺激,超声,温度或其组合都有反应。 这些化合物可以通过离子,共价键或H键连接到待递送的试剂上,或者与配制剂形成配合物。 待递送的药剂可以是治疗和/或诊断剂。 增强递送的治疗如超声波,离子分离和/或电泳也可与破坏剂一起使用。