[EN] CHROMOGENIC AND FLUOROGENIC PEPTIDE SUBSTRATES FOR THE DETECTION OF SERINE PROTEASE ACTIVITY [FR] SUBSTRATS PEPTIDIQUES CHROMOGÈNES ET FLUOROGÈNES POUR LA DÉTECTION DE L'ACTIVITÉ DE SÉRINE PROTÉASE
A novel synthesis of C(2)-modified peptide nucleic acids (PNAs) is proposed, using a submonomeric strategy with minimally protected building blocks, which allowed a reduction in the required synthetic steps. N(3)-unprotected, d-Lys- and d-Arg-based backbones were used to obtain positively charged PNAs with high optical purity, as inferred from chiral GC measurements. “Chiral-box” PNAs targeting the
提出了一种新的 C(2) 修饰肽核酸 (PNA) 合成方法,采用具有最低限度保护的构建模块的亚单体策略,从而减少了所需的合成步骤。根据手性 GC 测量推断,N(3)-未保护的、基于d -Lys- 和d -Arg 的主链用于获得具有高光学纯度的带正电荷的 PNA。使用这种方法生产了针对KRAS基因G12D 点突变的“手性盒”PNA ,与未修饰的 PNA 相比,突变型 DNA 链与野生型 DNA 链的序列选择性有所提高。
RAPAFUCIN DERIVATIVE COMPOUNDS AND METHODS OF USE THEREOF
申请人:The Johns Hopkins University
公开号:US20210094933A1
公开(公告)日:2021-04-01
The present disclosure provides macrocyclic compounds inspired by the immunophilin ligand family of natural products FK506 and rapamycin. The generation of a Rapafucin library of macrocyles that contain FK506 and rapamycin binding domains should have great potential as new leads for developing drugs to be used for treating diseases.
In-Cell Dual Drug Synthesis by Cancer-Targeting Palladium Catalysts
作者:Jessica Clavadetscher、Eugenio Indrigo、Sunay V. Chankeshwara、Annamaria Lilienkampf、Mark Bradley
DOI:10.1002/anie.201702404
日期:2017.6.6
within living cells, with the highly efficient labeling of subcellular components and the activation of prodrugs. In vivo applications, however, have been scarce, with a need for the specific cellular targeting of the active transition metals. Here, we show the design and application of cancer‐targeting palladium catalysts, with their specific uptake in brain cancer (glioblastoma) cells, while maintaining
The present invention provides stable metastin derivatives having excellent biological activities (a cancer metastasis suppressing activity, a cancer growth suppressing activity, a gonadotrophic hormone secretion stimulating activity, sex hormone secretion stimulating activity, etc.). By substituting the constituent amino acids of metastin with specific amino acids in the metastin derivative of the present invention, blood stability, solubility, etc. are more improved, gelation tendency is reduced, pharmacokinetics are also improved, and an excellent cancer metastasis suppressing activity or a cancer growth suppressing activity is exhibited. Furthermore, the metastin derivative of the present invention has the effects of suppressing gonadotropic hormone secretion, suppressing sex hormone secretion, etc.
The present invention provides stable metastin derivatives having excellent biological activities (a cancer metastasis suppressing activity, a cancer growth suppressing activity, a gonadotropic hormone secretion stimulating activity, sex hormone secretion stimulating activity, etc.). By substituting the constituent amino acids of metastin with specific amino acids in the metastin derivative of the present invention, blood stability, solubility, etc. are more improved, gelation tendency is reduced, pharmacokinetics are also improved, and an excellent cancer metastasis suppressing activity or a cancer growth suppressing activity is exhibited. Furthermore, the metastin derivative of the present invention has the effects of suppressing gonadotropic hormone secretion, suppressing sex hormone secretion, etc.