101. Intracellular Self-Assembly of Cyclic <scp>d</scp>-Luciferin Nanoparticles for Persistent Bioluminescence Imaging of Fatty Acid Amide Hydrolase
- Author
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Huafeng Zhang, Wei Tang, Zhen Zheng, Gaolin Liang, Zhanling Ding, Fuqiang Wang, Yue Yuan, Lin Wang, and Lili Liang
- Subjects
General Physics and Astronomy ,Biology ,010402 general chemistry ,01 natural sciences ,Amidohydrolases ,chemistry.chemical_compound ,In vivo ,Fatty acid amide hydrolase ,Amide ,Bioluminescence ,Bioluminescence imaging ,General Materials Science ,Benzothiazoles ,010405 organic chemistry ,General Engineering ,Rational design ,In vitro ,0104 chemical sciences ,nervous system ,chemistry ,Biochemistry ,Luminescent Measurements ,Nanoparticles ,lipids (amino acids, peptides, and proteins) ,psychological phenomena and processes ,Intracellular - Abstract
Fatty acid amide hydrolase (FAAH) overexpression induces several disorder symptoms in nerve systems, and therefore long-term tracing of FAAH activity in vivo is of high importance but remains challenging. Current bioluminescence (BL) methods are limited in detecting FAAH activity within 5 h. Herein, by rational design of a latent BL probe (d-Cys-Lys-CBT)2 (1), we developed a "smart" method of intracellular reduction-controlled self-assembly and FAAH-directed disassembly of its cyclic d-luciferin-based nanoparticles (i.e., 1-NPs) for persistent BL imaging of FAAH activity in vitro, in cells, and in vivo. Using aminoluciferin methyl amide (AMA), Lys-amino-d-luciferin (Lys-Luc), and amino-d-luciferin (NH2-Luc) as control BL probes, we validated that the persistent BL of 1 from luciferase-expressing cells or tumors was controlled by the activity of intracellular FAAH. With the property of long-term tracing of FAAH activity in vivo of 1, we envision that our BL precursor 1 could probably be applied for in vivo screening of FAAH inhibitors and the diagnosis of their related diseases (or disorders) in the future.
- Published
- 2016