The present disclosure relates to an in vivo fluorescent or radioactive probe represented by a compound of formula I which is capable of longitudinal imaging of inducible nitric oxide synthase (iNOS) expression in living cells and living animals on a real time basis. The probe of the present disclosure can exhibit specific and high affinity binding to the iNOS enzyme with reduced enzyme inhibitory property and also enables longitudinal monitoring of iNOS expression along with its activity or NO production in a same experimental subject throughout the progression of a physiological or disease process without employing separate subjects as controls and experimental. The present disclosure further provides a rapid and inexpensive real time method for visualizing iNOS expression and its activity in living cells and living animals precisely, conveniently and reversibly along with simultaneous in vivo imaging of its catalytic product, nitric oxide (NO) in live physiological settings.
本公开涉及一种由式I化合物表示的体内荧光或放射性探针,该探针能够在实时基础上对诱导型
一氧化氮合酶(iNOS)在活细胞和活体动物中的表达进行纵向成像。本公开的探针可以具有对iNOS酶的特异性和高亲和力结合,并且降低了酶的抑制性质,还能够在同一实验对象的生理或疾病过程的进展中纵向监测iNOS的表达以及其活性或
一氧化氮(NO)的产生,而无需使用单独的对照和实验对象。本公开还提供了一种快速、廉价的实时方法,用于准确、方便和可逆地在活细胞和活体动物中可视化iNOS的表达和活性,同时还能在活体生理环境中同时成像其催化产物
一氧化氮(NO)。