Tripartite prodrug 1, composed of an NAD(P)H:quinoneoxidoreductase 1 (NQO1)-responsive trigger group, a self-immolative linker, and the active drug 5-fluorouracil (5-FU), was designed and synthesized for site-specific cancer therapy. Upon bioreductive activation by NQO1, 1 can release the parent drug 5-FU specifically in NQO1-overexpressing cancer cells. This prodrug exerts comparable antitumor activity
DNA Polyfluorophores for Real-Time Multicolor Tracking of Dynamic Biological Systems
作者:Shenliang Wang、Jia Guo、Toshikazu Ono、Eric T. Kool
DOI:10.1002/anie.201201928
日期:2012.7.16
of common organic dyes make it difficult or impossible to visualize and follow multiple biological components in rapidly moving systems. The development of a multispectral set of improved DNA‐scaffolded fluorophores is described. Their use in multicolor cellular imaging (see scheme) and in tracking of biological motions on the subsecond timescale is demonstrated.
染色以生存:常见有机染料的光谱限制使其难以或不可能在快速移动的系统中可视化和跟踪多种生物成分。描述了一组改进的 DNA 支架荧光团的多光谱组的开发。展示了它们在多色细胞成像(见方案)和亚秒时间尺度上的生物运动跟踪中的使用。
One-Step Trimethylstannylation of Benzyl and Alkyl Halides
作者:Jianbing Jiang、Robert H. Crabtree、Gary W. Brudvig
DOI:10.1021/acs.joc.6b01883
日期:2016.10.7
Trialkylstannanes are good leaving groups that have been used for the formation of carbon–metalbonds to electrode surfaces for analyses of single-molecule conductivity. Here, we report the multistep synthesis of two amide-containing compounds that are of interest in studies of molecular rectifiers. Each molecule has two trimethylstannyl units, one linked by a methylene and the other by an ethylene
Rational designed highly sensitive NQO1-activated near-infrared fluorescent probe combined with NQO1 substrates in vivo: An innovative strategy for NQO1-overexpressing cancer theranostics
Since NQO1 is overexpressed in many cancer cells, it can be used as a biomarker for cancer diagnosis and targeted therapy. NQO1 substrates show potent anticancer activity through the redox cycle mediated by NQO1, while the NQO1probes can monitor NQO1 levels in cancers. High sensitivity of probes is needed for diagnostic imaging in clinic. In this study, based on the analysis of NQO1 catalytic pocket
由于 NQO1 在许多癌细胞中过表达,因此可用作癌症诊断和靶向治疗的生物标志物。NQO1 底物通过 NQO1 介导的氧化还原循环显示出有效的抗癌活性,而 NQO1 探针可以监测癌症中的 NQO1 水平。临床诊断成像需要高灵敏度的探针。本研究基于对 NQO1 催化口袋的分析,通过扩展苯醌触发基团10的芳香平面,合理设计了萘醌触发基团13。显示对 NQO1 的敏感性显着增加。基于萘醌触发基团的探针 A 在体内的灵敏度是基于苯醌触发基团的探针 B 的 8 倍。探针 A 对 NQO1 具有选择性和有效的敏感性,具有良好的安全性和血浆稳定性,使其首次在体内与 NQO1 底物结合用于过表达 NQO1 的癌症治疗。
HISTONE DEMETHYLASE INHIBITORS
申请人:Quanticel Pharmaceuticals, Inc.
公开号:US20150376169A1
公开(公告)日:2015-12-31
The present disclosure relates generally to compositions and methods for treating cancer and neoplastic disease. Provided herein are substituted pyridine derivative compounds and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for inhibition histone demethylase. Furthermore, the subject compounds and compositions are useful for the treatment of cancer, such as prostate cancer, breast cancer, bladder cancer, lung cancer and/or melanoma and the like.