Abstract
Fatty acid amide hydrolase (FAAH) is an important drug target for the treatment of many disease related conditions such as pain, inflammation, and mood disorders due to its vital role in the metabolism of endocannabinoid. In our present work, a FAAH-activated fluorescent probe named THPO was developed, which possessed high selectivity and excellent sensitivity for FAAH in complex systems. Critically, its metabolite 7-amino-3H-phenoxazin-3-one (AHPO) has long excitation and emission wavelengths and high fluorescence quantum yield, which are necessary for monitoring the activity of FAAH in living systems. In addition, a visual high-throughput screening method for FAAH inhibitors was established using THPO, which resulted in the discovery of an efficient natural inhibitor Neobavaisoflavone that was identified from 68 traditional herbal medicines. These results indicated that THPO can be used as a molecular tool for the rapid evaluation of FAAH activity in complex systems as well as providing an effective approach to screen FAAH inhibitors and providing a boost for the discovery of therapeutic agents toward FAAH related diseases.
| Original language | English |
|---|---|
| Pages (from-to) | 9493-9500 |
| Number of pages | 8 |
| Journal | Analytical Chemistry |
| Volume | 92 |
| Issue number | 14 |
| Early online date | 27 May 2020 |
| DOIs | |
| Publication status | Published - 21 Jul 2020 |
Funding
The authors thank the National Natural Science Foundation of China (81930112, 81622047, 81503201, and 21572029), National Science and Technology Major Project of the Ministry of Science and Technology of China (No. 2018ZX09735005), National Key R&D Program of China (2018YFC1705900), State Key Laboratory of Fine Chemicals (KF1803), and Open Research Fund of the State Key Laboratory of Cognitive Neuroscience and Learning (CNLZD1801) for financial support. T.D.J. wishes to thank the Royal Society for a Wolfson Research Merit Award.
ASJC Scopus subject areas
- Analytical Chemistry