申请人:The Board of Trustees of the University of Illinois
公开号:US20200199092A1
公开(公告)日:2020-06-25
High aldehyde dehydrogenase 1A1 (ALDH1A1) activity has emerged as a reliable marker for the identification of both normal and cancer stem cells. Herein, is presented AlDeSense, a turn-on green fluorescent probe for aldehyde dehydrogenase 1A1 (ALDH1A1) and Ctrl-AlDeSense, a matching non-responsive reagent. AlDeSense exhibits a 20-fold fluorescent enhancement when treated with ALDH1A1. Through the application of surface marker antibody staining, tumorsphere assays, and assessment of tumorigenicity, the disclosed results show that cells exhibiting high AlDeSense signal intensity have properties of cancer stem cells. Herein, is also reported the development of a red congener, red-AlDeSense. Importantly, red-AlDeSense represents one of only a few examples of a turn-on sensor in the red region using the d-PeT quenching mechanism.
高乙醛脱氢酶1A1(ALDH1A1)活性已成为识别正常和癌干细胞的一个可靠标志。本文介绍了一种名为AlDeSense的针对乙醛脱氢酶1A1(ALDH1A1)的开启型绿色荧光探针,以及一个相应的无响应试剂Ctrl-AlDeSense。当用ALDH1A1处理时,AlDeSense的荧光强度可增强20倍。通过表面标记抗体染色、肿瘤球体试验和肿瘤生成能力的评估,所披露的结果显示,表现出高AlDeSense信号强度的细胞具有癌干细胞的特性。本文还报告了一种红色类似物,即red-AlDeSense的开发。重要的是,red-AlDeSense是使用d-PeT淬灭机制在红色区域进行开启型传感的少数几个例子之一。