The serotonin 5-HT3 receptor is a ligand-gated ion channel, which by virtue of its pentameric architecture, can be considered to be an intriguing example of intrinsically multivalent biological receptors. This paper describes a general design approach to the study of multivalency in this multimeric ion channel. Bivalent ligands for 5-HT3 receptor have been designed by linking an arylpiperazine moiety to probes showing. different functional features. Both homobivalent and heterobivalent ligands have shown 5-HT3 receptor affinity in the nanomolar range, providing evidence for the viability of our design approach. Moreover, the high affinity shown by homobivalent ligands suggests that bivalency is a promising approach in 5-HT3 receptor modulation and provides the rational basis for applying the concepts of multivalency to the study of 5-HT3 receptor function.
[EN] HETEROBIFUNCTIONAL COMPOUNDS WITH IMPROVED SPECIFICITYFOR THE BROMODOMAIN OF BRD4<br/>[FR] COMPOSÉS HÉTÉROBIFONCTIONNELS PRÉSENTANT UNE SPÉCIFICITÉ AMÉLIORÉE POUR LE BROMODOMAINE DE BRD4
申请人:DANA FARBER CANCER INST INC
公开号:WO2019079701A1
公开(公告)日:2019-04-25
Disclosed are heterobifunctional compounds that effectuate selective degradation of a target protein, and which include a targeting ligand that binds a target protein and at least one other protein, a ligand that binds an E3 ubiquitin ligase or a component of E3 ubiquitin ligase, and a specificity modulating linker that links the first ligand and the second ligand. Pharmaceutical compositions containing the compounds, and methods of using and making the compounds are also disclosed.
[EN] NON PEPTIDIC HETEROBIVALENT MOLECULES FOR TREATING INFLAMMATORY DISEASES<br/>[FR] MOLÉCULES HÉTÉROBIVALENTES NON PEPTIDIQUES PERMETTANT LE TRAITEMENT DE MALADIES INFLAMMATOIRES
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2018134731A1
公开(公告)日:2018-07-26
The present invention relates to non peptidic, heterobivalent molecules (HBM) that are able to simultaneously bind a surface target protein as well as an endogenous or exogenous human antibody protein and induce immune effector function. More specifically, the present invention relates to agents capable of binding to a chemokine receptor and inducing the depletion of chemokine receptor positive subsets of pathogenic cells in a subject for use in the treatment and/or prevention of cancer, inflammatory, autoimmune and allergic disease.
subset of WDR5 interactions, chemically induced proteasomal degradation of WDR5 might represent an elegant way to target all oncogenic functions. This study presents the design, synthesis, and evaluation of two diverse WDR5 degrader series based on two WIN site binding scaffolds and shows that linker nature and length strongly influence degradation efficacy.
nanoprobes, which induced a clear turn-on signal of (19)F NMR/MRI. In the present study, we conducted a systematic investigation of the relationship between structure and properties of the probe to elucidate the mechanism of this turn-on (19)F NMR sensing in detail. Newly synthesized (19)F probes showed three distinct behaviors in response to the target protein: off/on, always-on, and always-off modes. We
(19)F NMR/MRI 探针由于其高灵敏度且在活体中没有背景信号,因此有望成为选择性传感生物活性剂的有力工具。我们最近报道了一种使用蛋白质配体束缚自组装 (19) F 探针检测特定蛋白质的独特超分子策略。该方法基于纳米探针的识别驱动拆卸,其诱导了 (19)F NMR/MRI 的清晰开启信号。在本研究中,我们对探针的结构和性质之间的关系进行了系统研究,以详细阐明这种开启(19)F NMR 传感的机制。新合成的 (19) F 探针在响应目标蛋白时表现出三种不同的行为:关闭/开启、始终开启和始终关闭模式。我们清楚地证明了蛋白质反应的这些差异可以用探针聚集体稳定性的差异来解释,并且聚集体的“中等稳定性”在蛋白质检测中产生了理想的开启响应。我们还通过改变探针的疏水性/亲水性平衡成功地控制了聚合稳定性。对检测机制的详细理解使我们能够合理设计具有更高灵敏度的开启(19)F NMR 探针,为(19)F