Article (Scientific journals)
Quantification of the Metabolic State in Cell-Model of Parkinson's Disease by Fluorescence Lifetime Imaging Microscopy.
Chakraborty, Sandeep; Nian, Fang-Shin; Tsai, Jin-Wu et al.
2016In Scientific Reports, 6 (1), p. 19145
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Keywords :
NAD; Flavin-Adenine Dinucleotide; Nerve Growth Factor; Animals; Flavin-Adenine Dinucleotide/metabolism; NAD/metabolism; Nerve Growth Factor/pharmacology; PC12 Cells; Parkinson Disease/metabolism; Rats; Energy Metabolism/drug effects; Metabolomics/methods; Microscopy, Fluorescence/methods; Models, Biological; Energy Metabolism; Metabolomics; Microscopy, Fluorescence; Parkinson Disease; Multidisciplinary
Abstract :
[en] Intracellular endogenous fluorescent co-enzymes, reduced nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD), play a pivotal role in cellular metabolism; quantitative assessment of their presence in living cells can be exploited to monitor cellular energetics in Parkinson's disease (PD), a neurodegenerative disorder. Here, we applied two-photon fluorescence lifetime imaging microscopy (2P-FLIM) to noninvasively measure the fluorescence lifetime components of NADH and FAD, and their relative contributions in MPP(+) (1-methyl-4-phenylpyridinium) treated neuronal cells, derived from PC12 cells treated with nerve growth factor (NGF), to mimic PD conditions. A systematic FLIM data analysis showed a statistically significant (p < 0.001) decrease in the fluorescence lifetime of both free and protein-bound NADH, as well as free and protein-bound FAD in MPP(+) treated cells. On the relative contributions of the free and protein-bound NADH and FAD to the life time, however, both the free NADH contribution and the corresponding protein-bound FAD contribution increase significantly (p < 0.001) in MPP(+) treated cells, compared to control cells. These results, which indicate a shift in energy production in the MPP(+) treated cells from oxidative phosphorylation towards anaerobic glycolysis, can potentially be used as cellular metabolic metrics to assess the condition of PD at the cellular level.
Disciplines :
Biotechnology
Author, co-author :
Chakraborty, Sandeep;  Institute of Biophotonics, National Yang-Ming University, Taipei, Taiwan 11221, ROC
Nian, Fang-Shin ;  Université de Liège - ULiège > GIGA > GIGA Neurosciences - Molecular Regulation of Neurogenesis ; Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan 11529, ROC ; Institue of Brain Science, National Yang-Ming University, Taipei, Taiwan 11221, ROC
Tsai, Jin-Wu;  Institue of Brain Science, National Yang-Ming University, Taipei, Taiwan 11221, ROC ; Biophotonics and Molecular Imaging Research Center, National Yang-Ming University, Taipei, Taiwan 11221, ROC
Karmenyan, Artashes;  Biophotonics and Molecular Imaging Research Center, National Yang-Ming University, Taipei, Taiwan 11221, ROC ; Department of Physics, National Dong Hwa University, Hualien, Taiwan 97401, ROC
Chiou, Arthur;  Institute of Biophotonics, National Yang-Ming University, Taipei, Taiwan 11221, ROC ; Biophotonics and Molecular Imaging Research Center, National Yang-Ming University, Taipei, Taiwan 11221, ROC
Language :
English
Title :
Quantification of the Metabolic State in Cell-Model of Parkinson's Disease by Fluorescence Lifetime Imaging Microscopy.
Publication date :
13 January 2016
Journal title :
Scientific Reports
eISSN :
2045-2322
Publisher :
Nature, Basingstoke, Hampshire, England
Volume :
6
Issue :
1
Pages :
19145
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This work has been supported by the Ministry of Science and Technology, Taiwan, ROC (Project No. NSC102-2218-E-010-003) and the Top University Project from Taiwan Ministry of Education, ROC. The authors would also like to acknowledge the support of Prof. Hsin-Chen Lee, Department & Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei-112, Taiwan, for generously providing the kits and other resources to perform the oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) assays.
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