Development of a Fluorescent Indicator for the Bioimaging of Nitric Oxide.
作者:Hirotatsu KOJIMA、Kuniko SAKURAI、Kazuya KIKUCHI、Shigenori KAWAHARA、Yutaka KIRINO、Hiroshi NAGOSHI、Yasunobu HIRATA、Takaaki AKAIKE、Hiroshi MAEDA、Tetsuo NAGANO
DOI:10.1248/bpb.20.1229
日期:——
Nitric oxide (NO) has been reported to play various roles as a signal transmitter. However, detailed functions of NO have yet to be clarified. We have developed a fluorescent indicator for NO imaging in living cells. The N-nitrosation of newly designed and synthesized 4-((3-amino-2-naphthyl)aminomethyl)benzoic acid (DAN-1) by NO yielded the highly fluorescent triazole-form. The membrane permeable ester
据报道,一氧化氮(NO)作为信号发送器发挥着各种作用。但是,NO的详细功能尚未阐明。我们已经开发出一种用于活细胞NO成像的荧光指示剂。新设计合成的4-((3-氨基-2-萘基)氨基甲基)苯甲酸(DAN-1)经NO进行N-亚硝化,得到高荧光三唑形式。DAN-1(DAN-1 EE)的膜可渗透酯衍生物被用于成像在活化的大鼠主动脉平滑肌细胞中产生的NO。将DAN-1 EE加载到细胞中后,酯键被细胞内酯酶水解,从而产生原始的DAN-1,其渗透性较低。负载DAN-1 EE的细胞的荧光强度根据NO的产生而增加。