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Baskin P, Ben Jehuda R, Abramovich I, Agranovich B, Davidor M, Mekies L, Milman H, Shulman M, Arad M, Gottlieb E, Binah O. Bioenergetic and metabolic aberrations in induced pluripotent stem cell-derived cardiomyocytes generated from PRKAG2-mutated, WPW patient. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Familial hypertrophic cardiomyopathy (HCM) is caused by over 400 mutations affecting mostly key sarcomere components, such as titin and myosin. However, HCM also results from mutations in non-structural genes such as PRKAG2 which is involved directly in a variety of bioenergetic and metabolic pathways. When the metabolic processes fail to work properly or effectively, structural and functional aberrations resulting in cardiac dysfunction can occur. Thus, mutations in the human PRKAG2 gene lead to HCM, autosomal dominant ventricular pre-excitation - Wolff-Parkinson-White syndrome (WPW), a progressive conduction system disease and vacuolar glycogen accumulation in cardiomyocytes.
Purpose
To investigate the hypothesis that intervening with the bioenergetic and metabolic consequences of the R302Q mutation in the PRKAG2 gene causing inherited cardiomyopathy, will attenuate the cardiac impairments.
Methods
We generated mutated and isogenic induced Pluripotent Stem Cell-derived cardiomyocytes (iPSC-CMs) from a WPW patient carrying the R302Q mutation. As additional control, we used healthy volunteers' iPSC-CMs. Bioenergetic (Oxygen Consumption Rate, OCR) and metabolic status were measured using the Seahorse Flux Analyzer and LC-MS, respectively. To decipher the molecular basis underlying the bioenergetic and metabolic deficits, RNA-seq analysis was performed.
Results
The OCR results demonstrated in PRKAG2-mutated compared to isogenic and healthy iPSC-CMs, a 2-fold increase in maximal respiration rate and a 3.75-fold increase in spare respiratory capacity, while basal OCR parameters were similar in all groups. Importantly, when treated with the AMPK activator metformin (2.5 [mM]), all the abovementioned OCR parameters were similar in the three groups. RNA-seq analysis demonstrated that of the 553 differently expressed genes (DEGs), and of the 99 DEGs mutually differentially expressed, compared to isogenic and healthy cells, the most relevant altered pathways were glycolysis, carbon metabolism, biosynthesis of amino acids, HIF-1 signaling and fructose and mannose metabolism. These findings are consistent with the LC-MS results demonstrating in PRKAG2-mutated versus isogenic and healthy iPSC-CMs, at least a 3-fold decrease in metabolites linked to the abovementioned pathways: butyryl-carnitine, creatine, docosahexaenoic acid, GMP, IMP, myristoyl-carnitine, palmitoyl-carnitine, succinyl-Cys, UMP, UTP, UDP-GlcNAc.
Conclusion
PRKAG2-mutated iPSC-CMs exhibit bioenergetic and metabolic aberrations, which contribute to the cardiac pathological aspects of WPW syndrome. Importantly, treatment with the AMPK activator metformin eliminated the bioenergetic abnormalities in the mutated cells, while isogenic and healthy control cells remained unaffected. Based on these novel findings, a new therapeutic modality in WPW patients may be considered.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Israel Science Foundation (ISF)
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Affiliation(s)
- P Baskin
- Technion - Israel Institute of Technology, Haifa, Israel
| | - R Ben Jehuda
- Technion - Israel Institute of Technology, Haifa, Israel
| | - I Abramovich
- Technion - Israel Institute of Technology, Haifa, Israel
| | - B Agranovich
- Technion - Israel Institute of Technology, Haifa, Israel
| | - M Davidor
- Technion - Israel Institute of Technology, Haifa, Israel
| | - L.N Mekies
- Technion - Israel Institute of Technology, Haifa, Israel
| | - H Milman
- Technion - Israel Institute of Technology, Haifa, Israel
| | - M Shulman
- Technion - Israel Institute of Technology, Haifa, Israel
| | - M Arad
- Sheba Medical Center, Ramat Gan, Israel
| | - E Gottlieb
- Technion - Israel Institute of Technology, Haifa, Israel
| | - O Binah
- Technion - Israel Institute of Technology, Haifa, Israel
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Ben Jehuda R, Abramovich I, Mekies L, Willi L, Eisen B, Shemer Y, Baskin P, Arad M, Gottlieb E, Binah O. Metabolism and Ca2+ handling abnormalities in PRKAG2-mutated induced pluripotent stem cells-derived cardiomyocytes. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mekies L, Ben Jehuda R, Eisen B, Willi L, Abramovich I, Shemer Y, Baskin P, Michele D, Arad M, Gottlieb E, Binah O. Depressed beta-adrenergic inotropic responsiveness, altered intracellular calcium handling and metabolic deficits in Duchenne Muscular Dystrophy patients’ induced pluripotent stem cell-derived cardiomyocytes. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Eisen B, Ben Jehuda R, Cuttitta A, Mekies L, Shemer Y, Reiter I, Monserrat L, Gherghiceanu M, Arad M, Michele D, Binah O. 216Functional properties of induced pluripotent stem cell-derived cardiomyocytes generated from Duchenne muscular dystrophy patients. Europace 2018. [DOI: 10.1093/europace/euy015.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- B Eisen
- Technion - Israel Institute of Technology, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Haifa, Israel
| | - R Ben Jehuda
- Technion - Israel Institute of Technology, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Haifa, Israel
| | - A Cuttitta
- University of Michigan, Department of Molecular and Integrative Physiology, Ann Arbor, United States of America
| | - L Mekies
- Technion - Israel Institute of Technology, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Haifa, Israel
| | - Y Shemer
- Technion - Israel Institute of Technology, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Haifa, Israel
| | - I Reiter
- Technion - Israel Institute of Technology, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Haifa, Israel
| | | | - M Gherghiceanu
- Victor Babes National Institute of Pathology, Bucharest, Romania
| | - M Arad
- Sheba Medical Center, Leviev Heart Center, Ramat Gan, Israel
| | - D Michele
- University of Michigan, Department of Molecular and Integrative Physiology, Ann Arbor, United States of America
| | - O Binah
- Technion - Israel Institute of Technology, Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Haifa, Israel
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Ben Jehuda R, Eisen B, Shemer Y, Mekies L, Sperling S, Gherghiceanu M, Arad M, Binah O. 3880Correcting the PRKAG2 mutation in WPW patient's induced pluripotent stem cells using CRISPR/Cas9 eliminates arrhythmic firing patterns in the derived cardiomyocytes. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.3880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Eisen B, Ben Jehuda R, Mekies L, Shemer Y, Cuttitta A, Monserrat L, Gherghiceanu M, Arad M, Freimark D, Michele D, Binah O. P3248Investigating dilated cardiomyopathy caused by dystrophin mutations using duchenne muscular dystrophy-patients induced pluripotent stem cell-derived cardiomyocytes. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ben Jehuda R, Eisen B, Shemer Y, Gherghiceanu M, Arad M, Binah O. 794Correcting PRKAG2 mutation in induced pluripotent stem cells using CRISPR/Cas9 eliminates arrhythmic firing patterns in the derived cardiomyocytes. Europace 2017. [DOI: 10.1093/ehjci/eux148.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fischer A, Pianca N, Azzimato V, Batchen EJ, Messer AE, Ben Jehuda R, Mueller AM, Bangert A, Bockstahler M, Oettl R, Katus HA, Kaya Z, Prando V, Franzoso M, Di Bona A, Campione M, Sandri M, Zaglia T, Mongillo M, Tabish AM, Buyandelger B, Enesa KN, Hunt J, Milner R, Wiseman JW, Wahlgren J, Bohlooly M, Knoell R, Richardson RV, Thomson AJW, Moran CM, Gray GA, Chapman KE, Papadaki M, Vikhorev PG, Sheehan A, Marston SB, Hallas T, Haykain T, Eisen B, Schick R, Gherghiceanu M, Mandel H, Arad M, Binah O. Moderated Poster Session - Heart245The involvement of TWEAK and FN14 in murine autoimmune myocarditis246Sympathetic neurons that innervate the heart locally modulate cardiomyocyte trophic and electrophysiological properties247W4R variant of CSRP3 leads to the expression of a novel alternate reading frame protein due to alternative splicing248Glucocorticoid intervention prenatally: effects on fetal heart maturation249Uncoupling of myofilament Ca2+-sensitivity from troponin I phosphorylation by hypertrophic and dilated cardiomyopathy mutations can be reversed by EGCG and related Hsp90 inhibitors250Investigating inherited HCM caused by SCO2 and PRKAG2 mutations using the patients' induced pluripotent stem cell-derived cardiomyocytes. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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