Two-Photon Excited FRET Dyads for Lysosome-Targeted Imaging and Photodynamic Therapy
作者:Mengliang Zhu、Jinghui Zhang、Yabin Zhou、Peipei Xing、Lei Gong、Chaorui Su、Dongdong Qi、Hongwu Du、Yongzhong Bian、Jianzhuang Jiang
DOI:10.1021/acs.inorgchem.8b01581
日期:2018.9.17
fluorescent dyes with integrated functions of targeted imaging and photodynamic therapy (PDT) are highly desired for the development of cancer theranostic agents. Herein, fluorescence resonance energy transfer (FRET) dyads, AceDAN-H2Por-Lyso (1a) and AceDAN-ZnPor-Lyso (1b), were developed for two-photon excited (TPE) lysosome-targeted fluorescence imaging and PDT of cancer cells. Under one-photon or
具有靶向成像和光动力疗法(PDT)的集成功能的双光子可激发荧光染料是开发癌症治疗药物的高度期望。本文中,开发了荧光共振能量转移(FRET)二联体,AceDAN-H 2 Por-Lyso(1a)和AceDAN-ZnPor-Lyso(1b),用于针对双光子激发(TPE)的溶酶体靶向荧光成像和癌症的PDT。细胞。在单光子或双光子激发下,AceDAN供体可以通过高效的FRET有效地将激发态能量转移至卟啉受体,从而分别产生用于细胞成像和PDT的深红色荧光和单线态氧。1a和1b除了在活细胞中具有强大的溶酶体靶向能力外,还具有较高的光细胞毒性和较低的暗细胞毒性。利用AceDAN供体的两个光子吸收特性以及卟啉受体的S 1和T 1状态正确分布的优点,AceDAN-卟啉二元组1a和1b已成功地应用于TPE荧光成像以跟踪双光子激光照射下癌细胞的形态学变化显着