Ratiometric NAD+ Sensors Reveal Subcellular NAD+ ModulatorsClick to copy article linkArticle link copied!
- Liuqing ChenLiuqing ChenShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Key Laboratory for the Intelligent Microbial Manufacturing of Medicines, Shenzhen 518055, ChinaMore by Liuqing Chen
- Meiting ChenMeiting ChenShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaMore by Meiting Chen
- Mupeng LuoMupeng LuoShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaMore by Mupeng Luo
- Yong LiYong LiShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaMore by Yong Li
- Bagen LiaoBagen LiaoGuangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Guangzhou Sport University, Guangzhou 510150, ChinaMore by Bagen Liao
- Min Hu*Min Hu*Email: [email protected]Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Guangzhou Sport University, Guangzhou 510150, ChinaMore by Min Hu
- Qiuliyang Yu*Qiuliyang Yu*Email: [email protected]Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Key Laboratory for the Intelligent Microbial Manufacturing of Medicines, Shenzhen 518055, ChinaMore by Qiuliyang Yu
Abstract
Mapping NAD+ dynamics in live cells and human is essential for translating NAD+ interventions into effective therapies. Yet, genetically encoded NAD+ sensors with better specificity and pH resistance are still needed for the cost-effective monitoring of NAD+ in both subcellular compartments and clinical samples. Here, we introduce multicolor, resonance energy transfer-based NAD+ sensors covering nano- to millimolar concentration ranges for clinical NAD+ measurement and subcellular NAD+ visualization. The sensors captured the blood NAD+ increase induced by NMN supplementation and revealed the distinct subcellular effects of NAD+ precursors and modulators. The sensors then enabled high-throughput screenings for mitochondrial and nuclear NAD+ modulators and identified α-GPC, a cognition-related metabolite that induces NAD+ redistribution from mitochondria to the nucleus relative to the total adenine nucleotides, which was further confirmed by NAD+ FRET microscopy.
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- Liuqing Chen, Pei Wang, Guan Huang, Wenxiang Cheng, Kaijing Liu, Qiuliyang Yu. Quantitative dynamics of intracellular NMN by genetically encoded biosensor. 2023https://doi.org/10.1101/2023.10.23.563573
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