Construct a lysosome-targeting and highly selective fluorescent probe for imaging of hydrogen sulfide in living cells and inflamed tissues
作者:Dan Wan、Tao Pan、Pinghua Ou、Rongrong Zhou、Ziting Ouyang、Lan Luo、Zuoqi Xiao、Yongbo Peng
DOI:10.1016/j.saa.2020.119311
日期:2021.3
Since the fluctuation of cellular hydrogen sulfide (H2S) is a very important third endogenously generated gaseous signaling molecule and plays a key role in the development of numerous human disorders, the real-time fluorescence detection of H2S in living systems has attracted plenty of interest during past decade. Although a lot of H2S fluorescent probes have been reported, the relationship between
由于细胞内硫化氢(H 2 S)的波动是非常重要的第三种内源性产生的气态信号分子,并且在人类多种疾病的发展中起着关键作用,因此在生命系统中对H 2 S进行实时荧光检测已引起人们的关注。在过去的十年中有很多兴趣。尽管已经报道了许多H 2 S荧光探针,但是细胞器中H 2 S的生理学和病理学之间的关系仍然不清楚,特别是对于炎性组织。在这项工作中,通过采用弱碱性吗啉基团作为溶酶体靶向位点,将萘二甲酰亚胺衍生物作为信号报告基团,将4-二硝基苯醚(DNB)作为荧光信号猝灭剂和H 2S选择性识别部分,我们报道了一种新型的靶向溶酶体的TP荧光探针LyNP-H 2 S,用于活细胞和发炎组织中的H 2 S检测和成像。LyNP-H 2 S探针在不存在H 2 S的情况下显示出非常低的荧光信号,在540 nm处存在H 2 S的情况下显示出显着的262倍荧光强度增强。此外,LyNP-H 2小号具有H的定量检测的能力2 S中的浓度范围从0到12