Water-soluble AIE luminogens for monitoring and retardation of fibrillation of amyloid proteins
申请人:THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
公开号:US09279806B2
公开(公告)日:2016-03-08
Compounds that exhibit aggregation induced emission (AIE), and more particularly to water-soluble conjugated polyene compounds that exhibit aggregation induced emission. The conjugated polyene compounds can be used as bioprobes for DNA detection, G-quadruplex identification, and potassium-ion sensing. The polyenes also can be utilized as an external fluorescent marker to study conformational structures, to monitor folding processes of label-free oligonucleotides with G-rich strand sequences, and to visualize DNA bands in PAGE assay. The polyenes have applications in high-throughput anticancer drug screening and are useful for the development of efficient anti-cancer drugs. Furthermore, the present subject matter can also be used to monitor fibrillation of amyloid proteins and to facilitate the storage and delivery thereof.
Sterol-containing tetraphenylethenes: synthesis, aggregation-induced emission, and organogel formation
作者:Yang Liu、Jacky W. Y. Lam、Faisal Mahtab、Ryan T. K. Kwok、Ben Zhong Tang
DOI:10.1007/s11458-010-0212-7
日期:2010.9
Cholesterol- and stigmasterol-containing tetraphenylethenes (TPEs) (TPE-Chol and TPE-Stig) are facilely synthesized in satisfactory yields by Cu (I)-catalyzed click reaction of 1,2-bis(4-azidomethylphenyl)-1,2-diphenylethene and cholesteryl-4-ethylbenoate and sigmasteryl 11-(4-ethynylphenoxy)undecanoate, respectively. Whereas they are nonluminescent in solution, they become highly emissive when aggregated in the condensed phase. The molecules of TPE-Stig can self-assemble in methanol solution, generating organogels with gelation-induced emission characteristics.
Distinct optical and kinetic responses from E/Z isomers of caspase probes with aggregation-induced emission characteristics
作者:Jing Liang、Haibin Shi、Ryan T. K. Kwok、Meng Gao、Youyong Yuan、Wenhua Zhang、Ben Zhong Tang、Bin Liu
DOI:10.1039/c4tb00405a
日期:——
A dual-labeled probe for monitoring caspase activity was designed and synthesized based on a tetraphenylethene (TPE) fluorogen with aggregation-induced emission characteristics and a caspase-specific Asp-Glu-Val-Asp (DFVD) peptide.
the AIE process in inflammatorycells that contain H2O2 and overexpress myeloperoxidase. The emission turn‐on resulting from the crosslinking of TT molecules could be used to distinguish between inflammatory and normal cells. Moreover, the massive TT aggregates induced mitochondria damage and cell apoptosis. This study demonstrates that the H2O2‐responsive peroxidase‐activated AIEgen holds great promise
炎性细胞已引起广泛关注,因为炎性疾病增加了许多类型癌症的风险。因此,实施炎性细胞的检测和治疗方法是紧迫而重要的。本文中,我们构建了一种具有聚集诱导发射(AIE)特性的治疗诊断探针,其中用两个酪氨酸(Tyr)部分修饰了四苯乙烯(TPE)。由于依赖H 2 O 2,酶催化的二氢酪氨酸的形成,含Tyr的TPE(TT)分子通过二氢酪氨酸键交联以诱导疏水性聚集体的形成,从而激活了包含H 2 O 2的炎性细胞中的AIE过程。并过表达髓过氧化物酶。TT分子交联产生的发射开启可用于区分炎症细胞和正常细胞。而且,大量的TT聚集体诱导线粒体损伤和细胞凋亡。这项研究表明,H 2 O 2反应过氧化物酶激活的AIEgen对于炎症细胞选择性成像和抑制具有广阔的前景。
[EN] POLYMERS AND OLIGOMERS WITH AGGREGATION-INDUCED EMISSION CHARACTERISTICS FOR IMAGING AND IMAGE-GUIDED THERAPY<br/>[FR] POLYMÈRES ET OLIGOMÈRES AYANT DES CARACTÉRISTIQUES D'ÉMISSION INDUITE PAR AGRÉGATION POUR L'IMAGERIE ET LA THÉRAPIE GUIDÉE PAR L'IMAGE
申请人:UNIV SINGAPORE
公开号:WO2015163817A1
公开(公告)日:2015-10-29
A fluorophore or conjugated polymer with aggregation-induced emission characteristics useful for drug tracking and delivery, identification and labeling of biological subjects, such as cells or parts of a cell, as well as for imaging, and image-guided photodynamic therapy are described herein.