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    • 5. 发明授权
    • Specific targeting of RNA expanded repeat sequences
    • RNA扩增重复序列的特异性靶向
    • US09586944B2
    • 2017-03-07
    • US14904999
    • 2014-07-15
    • THE SCRIPPS RESEARCH INSTITUTE
    • Matthew D. DisneyLirui GuanWang-Yong Yang
    • A61K48/00C07D403/14C07D495/04C07D519/00
    • G01N33/5308A61K48/00C07D403/14C07D495/04C07D519/00G01N2500/04G01N2500/10
    • The present invention provides small molecule compounds that can form covalent adducts with specific sequences of RNA, such as the hairpin loop r(CUG)exp sequence which is a cause of myotonic dystrophy type 1 (DM1), or the r(CGG)exp sequence which is a cause of fragile X-associated tremor/ataxia syndrome (FXTAS); to methods of making the small molecule compounds; and to methods of using the small molecular compounds in the treatment of DM1 or of FXTAS in patients afflicted therewith. The invention further provides a method for identifying an RNA target of a small molecule drug in vivo, using a small molecule drug conjugated to an RNA-reactive crosslinker group and a reporter group, contacting a cell or nucleic acid extract with the small molecule drug conjugate, then separating RNA targets crosslinked to the small molecule drug conjugate by interaction of the affinity group with a complementary affinity group.
    • 本发明提供可以形成具有特定RNA序列的共价加合物的小分子化合物,例如作为强直性营养不良型1(DM1)或r(CGG)exp序列的发夹环r(CUG)exp序列 这是造成X型相关震颤/共济失调综合征(FXTAS)的易感因素。 制备小分子化合物的方法; 以及使用小分子化合物治疗患有DM1或FXTAS的患者的方法。 本发明还提供了使用与RNA反应性交联剂基团和报道基团缀合的小分子药物,使细胞或核酸提取物与小分子药物缀合物接触的方法来鉴定体内小分子药物的RNA靶标 ,然后通过亲和基团与互补亲和基团的相互作用分离与小分子药物偶联物交联的RNA靶标。
    • 6. 发明申请
    • SMALL MOLECULES TARGETING REPEAT r(CGG) SEQUENCES
    • 小分子靶向重复序列(CGG)序列
    • US20150307487A1
    • 2015-10-29
    • US14424761
    • 2013-08-30
    • THE SCRIPPS RESEARCH INSTITUTE
    • Matthew D. DisneyBiao LiuJessica L. Childs-DisneyWang-Yong Yang
    • C07D471/04A61K47/48C07D519/00
    • C07D471/04A61K31/475A61K47/65C07D519/00
    • The invention provides a series of bioactive small molecules that target expanded r(CGG) repeats, termed r(CGG)exp, that causes Fragile X-associated Tremor Ataxia Syndrome (FXTAS). The compound was identified by using information on the chemotypes and RNA motifs that interact. Specifically, 9-hydroxy-5,11-dimethyl-2-(2-(piperidin-1-yl)ethyl)-6H-pyrido[4,3-b]carbazol-2-ium, binds the 5′CG/3′GGC motifs in r(CGG)exp and disrupts a toxic r(CGG)exp-protein complex. Specifically, dimeric compounds incorporating two 9-hydroxyellipticine analog structures can even more potently bind the 5′CGG/3′GGC motifs in r(CGG)exp and disrupts a toxic r(CGG)exp-protein complex. Structure-activity relationships (SAR) studies determined that the alkylated pyridyl and phenolic side chains are important chemotypes that drive molecular recognition of r(CGG) repeats, such as r(CGG)exp. Importantly, the compound is efficacious in FXTAS model cellular systems as evidenced by its ability to improve FXTAS-associated pre-mRNA splicing defects and to reduce the size and number of r(CGG)exp-protein aggregates.
    • 本发明提供一系列生物活性小分子,其靶向引起脆性X相关性震颤共济失调综合征(FXTAS)的扩增的r(CGG)重复,称为r(CGG)exp。 通过使用与相互作用的化学型和RNA基序的信息来鉴定该化合物。 具体地,9-羟基-5,11-二甲基-2-(2-(哌啶-1-基)乙基)-6H-吡啶并[4,3-b]咔唑-2-氧化物结合5'CG / 3 r(CGG)中的GGC基序表达并破坏毒性r(CGG)exp蛋白复合物。 具体来说,结合两个9-羟基椭圆星类似物结构的二聚化合物甚至可以更有效地结合r(CGG)exp中的5'CGG / 3'GGC基序并破坏毒性r(CGG)exp蛋白复合物。 结构 - 活性关系(SAR)研究确定烷基化的吡啶基和酚侧链是驱动r(CGG)重复的分子识别的重要的化学型,例如r(CGG)exp。 重要的是,该化合物在FXTAS模型细胞系统中是有效的,如通过其改善FXTAS相关的前mRNA剪接缺陷并减少r(CGG)exp蛋白聚集体的大小和数量的能力所证明的。
    • 8. 发明授权
    • Toxic RNA inhibitors self-assembled in situ
    • US10471057B2
    • 2019-11-12
    • US16266832
    • 2019-02-04
    • THE SCRIPPS RESEARCH INSTITUTE
    • Matthew D. DisneySuzanne G. Rzuczek
    • C12N15/10A61K31/496A61K31/702A61K38/07A61K38/08A61K47/54A61K47/55
    • Potent modulators of RNA function can be assembled in cellulo by using the cell as a reaction vessel and a disease-causing RNA as a catalyst. When designing small molecule effectors of function, a balance between permeability and potency must be struck. Low molecular weight compounds are more permeable while higher molecular weight compounds are more potent. The advantages of both types of compounds could be synergized if low molecular weight molecules could be transformed into potent, multivalent ligands via a reaction catalyzed by binding to a target in cells expressing a genetic defect. We demonstrate that this approach is indeed viable in cellulo. Small molecule modules with precisely positioned alkyne and azide moieties bind adjacent internal loops in r(CCUG)exp, the causative agent of myotonic dystrophy type 2 (DM2), and are transformed into oligomeric, potent inhibitors of DM2 RNA dysfunction via a 1,3 Huisgen dipolar cycloaddition reaction, a variant of click chemistry. Additionally, we show that this approach is applicable to the r(CUG) repeating RNA that causes myotonic dystrophy type 1 (DM1). The click chemistry approach also allows for FRET sensors to be synthesized on-site by using r(CUG) repeats as a catalyst. Furthermore it is shown that small molecule binding sites in patient-derived cells can be identified by using reactive approaches termed Chem-CLIP and Chem-CLIP-Map. Lastly, it is shown that small molecules that target r(CUG) expansions can be designed to cleave this RNA by appending a small molecule with a nucleic acid cleaving module.
    • 10. 发明申请
    • TOXIC RNA INHIBITORS SELF-ASSEMBLED IN SITU
    • US20190151310A1
    • 2019-05-23
    • US16266832
    • 2019-02-04
    • THE SCRIPPS RESEARCH INSTITUTE
    • Matthew D. DisneySuzanne G. Rzuczek
    • A61K31/496A61K47/54A61K38/08A61K31/702A61K47/55A61K38/07
    • A61K31/496A61K31/702A61K38/07A61K38/08A61K47/549A61K47/55A61K47/557
    • Potent modulators of RNA function can be assembled in cellulo by using the cell as a reaction vessel and a disease-causing RNA as a catalyst. When designing small molecule effectors of function, a balance between permeability and potency must be struck. Low molecular weight compounds are more permeable while higher molecular weight compounds are more potent. The advantages of both types of compounds could be synergized if low molecular weight molecules could be transformed into potent, multivalent ligands via a reaction catalyzed by binding to a target in cells expressing a genetic defect. We demonstrate that this approach is indeed viable in cellulo. Small molecule modules with precisely positioned alkyne and azide moieties bind adjacent internal loops in r(CCUG)exp, the causative agent of myotonic dystrophy type 2 (DM2), and are transformed into oligomeric, potent inhibitors of DM2 RNA dysfunction via a 1,3 Huisgen dipolar cycloaddition reaction, a variant of click chemistry. Additionally, we show that this approach is applicable to the r(CUG) repeating RNA that causes myotonic dystrophy type 1 (DM1). The click chemistry approach also allows for FRET sensors to be synthesized on-site by using r(CUG) repeats as a catalyst. Furthermore it is shown that small molecule binding sites in patient-derived cells can be identified by using reactive approaches termed Chem-CLIP and Chem-CLIP-Map. Lastly, it is shown that small molecules that target r(CUG) expansions can be designed to cleave this RNA by appending a small molecule with a nucleic acid cleaving module.