Cited by 128Sirtuins and Resveratrol in MedicineGenetic Neurodegenerative DiseasesMitochondrial Function and Pathology

Nicotinamide mononucleotide requires SIRT3 to improve cardiac function and bioenergetics in a Friedreich’s ataxia cardiomyopathy model

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Martin, Angelical S., Abraham, Dennis M., Hershberger, Kathleen A., Bhatt, Dhaval P., Mao, Lan, Cui, Huaxia, Liu, Juan, Liu, Xiaojing +5 more·2017·JCI Insight

Abstract

Increasing NAD + levels by supplementing with the precursor nicotinamide mononucleotide (NMN) improves cardiac function in multiple mouse models of disease. While NMN influences several aspects of mitochondrial metabolism, the molecular mechanisms by which increased NAD + enhances cardiac function are poorly understood. A putative mechanism of NAD + therapeutic action exists via activation of the mitochondrial NAD + -dependent protein deacetylase sirtuin 3 (SIRT3). We assessed the therapeutic efficacy of NMN and the role of SIRT3 in the Friedreich’s ataxia cardiomyopathy mouse model (FXN-KO). At baseline, the FXN-KO heart has mitochondrial protein hyperacetylation, reduced Sirt3 mRNA expression, and evidence of increased NAD + salvage. Remarkably, NMN administered to FXN-KO mice restores cardiac function to near-normal levels. To determine whether SIRT3 is required for NMN therapeutic efficacy, we generated SIRT3-KO and SIRT3-KO/FXN-KO (double KO [dKO]) models. The improvement in cardiac function upon NMN treatment in the FXN-KO is lost in the dKO model, demonstrating that the effects of NMN are dependent upon cardiac SIRT3. Coupled with cardio-protection, SIRT3 mediates NMN-induced improvements in both cardiac and extracardiac metabolic function and energy metabolism. Taken together, these results serve as important preclinical data for NMN supplementation or SIRT3 activator therapy in Friedreich’s ataxia patients.

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  • SIRT3 mediates NMN-induced improvements in cardiac and extracardiac metabolic function in a mouse model of cardiomyopathy.

    “SIRT3 mediates NMN-induced improvements in cardiac and extracardiac metabolic function in a mouse model of cardiomyopathy207.”

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  1. Xu W, Barrientos T, Mao L, Rockman HA, Sauve AA, Andrews NC. Lethal Cardiomyopathy in Mice Lacking Transferrin Receptor in the Heart. Cell Rep. 2015;13(3):533-545. · DOI
  2. Payne RM, et al. Fatty acid oxidation is disrupted in the FRDA heart. Presented at: International Ataxia Research Conference; March 28, 2015; Windsor, United Kingdom. Session 6.
  3. Smyth GK. LIMMA: linear models for microarray data. In: Genlteman R, Carey V, Huber W, Irizarry R, Dudoit S, eds. Bioin- formatics and Computational Biology Solutions Using R and Bioconductor. New York, NY: Springer-Verlag New York;2005:397-420.

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Authors
Martin, A. S., Abraham, D. M., Hershberger, K. A., Bhatt, D. P., Mao, L., Cui, H., Liu, J., Liu, X., Muehlbauer, M. J., Grimsrud, P. A., Locasale, J. W., Payne, R. M., & Hirschey, M. D.
Affiliations
  • Duke University (US)
  • Department of Pharmacology and Cancer Biology,
  • Indiana University Indianapolis (US)
Venue
JCI Insight
Published
2017-07-20
Volume
2
Issue
14
ISSN
2379-3708 (ISSN-L)
OpenAlex
W2736952832
Cited by
128
References
69
Citations by year
2026: 5 · 2025: 9 · 2024: 16 · 2023: 17 · 2022: 22 · 2021: 18 · 2020: 11 · 2019: 11 · 2018: 15 · 2017: 3
FWCI
6.61
Type
journal article
Language
en
Open access
Locations
  • JCI Insight (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Heart Association
  • Friedreich's Ataxia Research Alliance
  • National Institutes of Health
  • National Institute on Alcohol Abuse and Alcoholism (R01AA022146)
  • National Heart, Lung, and Blood Institute (F31HL123275, K08HL125905)
  • National Cancer Institute (R00CA168997)
  • National Institute of General Medical Sciences (T32GM007184, T32GM007105)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK096493)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
nicotinamide mononucleotide, SIRT3, cardiac function, myocardial energy metabolism, mitochondrial metabolism, NAD+ supplementation

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