1
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Tao Y, Yi X, Gu Y, Yang R, Li Z, Guo X, Zhao D, Zhang Y. Neurotoxicity of dibutyl phthalate in zebrafish larvae: Decreased energy acquisition by neurons. Food Chem Toxicol 2024; 188:114666. [PMID: 38621509 DOI: 10.1016/j.fct.2024.114666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/26/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
This work was designed to investigate the neurotoxic effects of the typical plasticizer dibutyl phthalate (DBP) using zebrafish larvae as a model. The results of exhibited that zebrafish larvae exposed to DBP at concentrations of 5 μg/L and 10 μg/L exhibited brain malformations (24 h) and behavioral abnormalities (72 h). After 72 h of exposure to DBP, microglia in the brain were over-activated, reactive oxygen species (ROS) formation was increased, and apoptosis was observed. Meanwhile, it was found that neurons exhibited impaired mitochondrial structure, absent mitochondrial membrane potential and up-regulated autophagy. Further comprehensive biochemical analyses and RNA-Seq, validated by RT-qPCR, glutamate metabolism and PPAR signaling pathway were significantly enriched in the DBP stress group, this may be the main reason for the disruption of glycolysis/gluconeogenesis processes and the reduction of energy substrates for the astrocyte-neuron lactate shuttle (ANLS). In addition, the DBP-exposed group showed aberrant activation of endoplasmic reticulum (ER) stress signaling pathway, which may be related to ROS as well as neuronal apoptosis and autophagy. In conclusion, DBP-induced neurotoxicity may be the combined result of insufficient neuronal energy acquisition, damage to mitochondrial structure, apoptosis and autophagy. These results provide a theoretical basis for understanding the neurotoxic effects of DBP.
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Affiliation(s)
- Yue Tao
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xiaodong Yi
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yanyan Gu
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Rongyi Yang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Zixu Li
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xiangyong Guo
- Fuyu County Agricultural Technology Extension Center, Qiqihar, 161299, China
| | - Donglin Zhao
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
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2
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García-Poyatos C, Arora P, Calvo E, Marques IJ, Kirschke N, Galardi-Castilla M, Lembke C, Meer M, Fernández-Montes P, Ernst A, Haberthür D, Hlushchuk R, Vázquez J, Vermathen P, Enríquez JA, Mercader N. Cox7a1 controls skeletal muscle physiology and heart regeneration through complex IV dimerization. Dev Cell 2024:S1534-5807(24)00237-5. [PMID: 38701784 DOI: 10.1016/j.devcel.2024.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/30/2024] [Accepted: 04/12/2024] [Indexed: 05/05/2024]
Abstract
The oxidative phosphorylation (OXPHOS) system is intricately organized, with respiratory complexes forming super-assembled quaternary structures whose assembly mechanisms and physiological roles remain under investigation. Cox7a2l, also known as Scaf1, facilitates complex III and complex IV (CIII-CIV) super-assembly, enhancing energetic efficiency in various species. We examined the role of Cox7a1, another Cox7a family member, in supercomplex assembly and muscle physiology. Zebrafish lacking Cox7a1 exhibited reduced CIV2 formation, metabolic alterations, and non-pathological muscle performance decline. Additionally, cox7a1-/- hearts displayed a pro-regenerative metabolic profile, impacting cardiac regenerative response. The distinct phenotypic effects of cox7a1-/- and cox7a2l-/- underscore the diverse metabolic and physiological consequences of impaired supercomplex formation, emphasizing the significance of Cox7a1 in muscle maturation within the OXPHOS system.
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Affiliation(s)
- Carolina García-Poyatos
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain; Centro de Investigación Biomédica en red en Fragilidad y Envejecimiento saludable (CIBERFES), Madrid, Spain
| | - Prateek Arora
- Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland; Department for Biomedical Research, Cardiovascular Disease Program, University of Bern, Bern, Switzerland
| | - Enrique Calvo
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain; Centro de Investigación Biomédica en red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Ines J Marques
- Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland; Department for Biomedical Research, Cardiovascular Disease Program, University of Bern, Bern, Switzerland
| | - Nick Kirschke
- Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland; Department for Biomedical Research, Cardiovascular Disease Program, University of Bern, Bern, Switzerland
| | | | - Carla Lembke
- Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland; Department for Biomedical Research, Cardiovascular Disease Program, University of Bern, Bern, Switzerland
| | - Marco Meer
- Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland; Department for Biomedical Research, Cardiovascular Disease Program, University of Bern, Bern, Switzerland
| | | | - Alexander Ernst
- Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland
| | - David Haberthür
- MicroCT research group, Institute of Anatomy, University of Bern, Bern, Switzerland
| | - Ruslan Hlushchuk
- MicroCT research group, Institute of Anatomy, University of Bern, Bern, Switzerland
| | - Jesús Vázquez
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain; Centro de Investigación Biomédica en red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Peter Vermathen
- University Institute of Diagnostic and Interventional Neuroradiology, Magnetic Resonance Methodology, University of Bern, Bern, Switzerland
| | - José Antonio Enríquez
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain; Centro de Investigación Biomédica en red en Fragilidad y Envejecimiento saludable (CIBERFES), Madrid, Spain.
| | - Nadia Mercader
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain; Department of Developmental Biology and Regeneration, Institute of Anatomy, University of Bern, Bern, Switzerland; Department for Biomedical Research, Cardiovascular Disease Program, University of Bern, Bern, Switzerland.
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3
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Elkhoury K, Kodeih S, Enciso-Martínez E, Maziz A, Bergaud C. Advancing Cardiomyocyte Maturation: Current Strategies and Promising Conductive Polymer-Based Approaches. Adv Healthc Mater 2024; 13:e2303288. [PMID: 38349615 DOI: 10.1002/adhm.202303288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/31/2024] [Indexed: 02/21/2024]
Abstract
Cardiovascular diseases are a leading cause of mortality and pose a significant burden on healthcare systems worldwide. Despite remarkable progress in medical research, the development of effective cardiovascular drugs has been hindered by high failure rates and escalating costs. One contributing factor is the limited availability of mature cardiomyocytes (CMs) for accurate disease modeling and drug screening. Human induced pluripotent stem cell-derived CMs offer a promising source of CMs; however, their immature phenotype presents challenges in translational applications. This review focuses on the road to achieving mature CMs by summarizing the major differences between immature and mature CMs, discussing the importance of adult-like CMs for drug discovery, highlighting the limitations of current strategies, and exploring potential solutions using electro-mechano active polymer-based scaffolds based on conductive polymers. However, critical considerations such as the trade-off between 3D systems and nutrient exchange, biocompatibility, degradation, cell adhesion, longevity, and integration into wider systems must be carefully evaluated. Continued advancements in these areas will contribute to a better understanding of cardiac diseases, improved drug discovery, and the development of personalized treatment strategies for patients with cardiovascular disorders.
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Affiliation(s)
- Kamil Elkhoury
- LAAS-CNRS, Université de Toulouse, CNRS, Toulouse, F-31400, France
| | - Sacha Kodeih
- Faculty of Medicine and Medical Sciences, University of Balamand, Tripoli, P.O. Box 100, Lebanon
| | | | - Ali Maziz
- LAAS-CNRS, Université de Toulouse, CNRS, Toulouse, F-31400, France
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4
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Cardeira-da-Silva J, Wang Q, Sagvekar P, Mintcheva J, Latting S, Günther S, Ramadass R, Yekelchyk M, Preussner J, Looso M, Junker JP, Stainier DYR. Antigen presentation plays positive roles in the regenerative response to cardiac injury in zebrafish. Nat Commun 2024; 15:3637. [PMID: 38684665 PMCID: PMC11058276 DOI: 10.1038/s41467-024-47430-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
In contrast to adult mammals, adult zebrafish can fully regenerate injured cardiac tissue, and this regeneration process requires an adequate and tightly controlled immune response. However, which components of the immune response are required during regeneration is unclear. Here, we report positive roles for the antigen presentation-adaptive immunity axis during zebrafish cardiac regeneration. We find that following the initial innate immune response, activated endocardial cells (EdCs), as well as immune cells, start expressing antigen presentation genes. We also observe that T helper cells, a.k.a. Cd4+ T cells, lie in close physical proximity to these antigen-presenting EdCs. We targeted Major Histocompatibility Complex (MHC) class II antigen presentation by generating cd74a; cd74b mutants, which display a defective immune response. In these mutants, Cd4+ T cells and activated EdCs fail to efficiently populate the injured tissue and EdC proliferation is significantly decreased. cd74a; cd74b mutants exhibit additional defects in cardiac regeneration including reduced cardiomyocyte dedifferentiation and proliferation. Notably, Cd74 also becomes activated in neonatal mouse EdCs following cardiac injury. Altogether, these findings point to positive roles for antigen presentation during cardiac regeneration, potentially involving interactions between activated EdCs, classical antigen-presenting cells, and Cd4+ T cells.
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Affiliation(s)
- João Cardeira-da-Silva
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany.
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany.
| | - Qianchen Wang
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
| | - Pooja Sagvekar
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
| | - Janita Mintcheva
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin Institute for Medical Systems Biology, Berlin, Germany
- Humboldt University of Berlin, Berlin, Germany
| | - Stephan Latting
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Stefan Günther
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics and Deep Sequencing Platform, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Radhan Ramadass
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Michail Yekelchyk
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics and Deep Sequencing Platform, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Jens Preussner
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics Core Unit (BCU), Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Mario Looso
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics Core Unit (BCU), Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Jan Philipp Junker
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin Institute for Medical Systems Biology, Berlin, Germany
- DZHK German Centre for Cardiovascular Research, Partner Site Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Didier Y R Stainier
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany.
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany.
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5
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Youssef KK, Nieto MA. Epithelial-mesenchymal transition in tissue repair and degeneration. Nat Rev Mol Cell Biol 2024:10.1038/s41580-024-00733-z. [PMID: 38684869 DOI: 10.1038/s41580-024-00733-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2024] [Indexed: 05/02/2024]
Abstract
Epithelial-mesenchymal transitions (EMTs) are the epitome of cell plasticity in embryonic development and cancer; during EMT, epithelial cells undergo dramatic phenotypic changes and become able to migrate to form different tissues or give rise to metastases, respectively. The importance of EMTs in other contexts, such as tissue repair and fibrosis in the adult, has become increasingly recognized and studied. In this Review, we discuss the function of EMT in the adult after tissue damage and compare features of embryonic and adult EMT. Whereas sustained EMT leads to adult tissue degeneration, fibrosis and organ failure, its transient activation, which confers phenotypic and functional plasticity on somatic cells, promotes tissue repair after damage. Understanding the mechanisms and temporal regulation of different EMTs provides insight into how some tissues heal and has the potential to open new therapeutic avenues to promote repair or regeneration of tissue damage that is currently irreversible. We also discuss therapeutic strategies that modulate EMT that hold clinical promise in ameliorating fibrosis, and how precise EMT activation could be harnessed to enhance tissue repair.
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Affiliation(s)
| | - M Angela Nieto
- Instituto de Neurociencias (CSIC-UMH), Sant Joan d'Alacant, Spain.
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, Madrid, Spain.
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6
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Wang H, Siren J, Perttunen S, Immonen K, Chen Y, Narumanchi S, Kosonen R, Paavola J, Laine M, Tikkanen I, Lakkisto P. Deficiency of heme oxygenase 1a causes detrimental effects on cardiac function. J Cell Mol Med 2024; 28:e18243. [PMID: 38509740 PMCID: PMC10955162 DOI: 10.1111/jcmm.18243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 03/22/2024] Open
Abstract
Humans lacking heme oxygenase 1 (HMOX1) display growth retardation, haemolytic anaemia, and vulnerability to stress; however, cardiac function remains unclear. We aimed to explore the cardiac function of zebrafish lacking hmox1a at baseline and in response to stress. We generated zebrafish hmox1a mutants using CRISPR/Cas9 genome editing technology. Deletion of hmox1a increases cardiac output and further induces hypertrophy in adults. Adults lacking hmox1a develop myocardial interstitial fibrosis, restrain cardiomyocyte proliferation and downregulate renal haemoglobin and cardiac antioxidative genes. Larvae lacking hmox1a fail to respond to hypoxia, whereas adults are insensitive to isoproterenol stimulation in the heart, suggesting that hmox1a is necessary for cardiac response to stress. Haplodeficiency of hmox1a stimulates non-mitochondrial respiration and cardiac cell proliferation, increases cardiac output in larvae in response to hypoxia, and deteriorates cardiac function and structure in adults upon isoproterenol treatment. Intriguingly, haplodeficiency of hmox1a upregulates cardiac hmox1a and hmox1b in response to isoproterenol. Collectively, deletion of hmox1a results in cardiac remodelling and abrogates cardiac response to hypoxia and isoproterenol. Haplodeficiency of hmox1a aggravates cardiac response to the stress, which could be associated with the upregulation of hmox1a and hmox1b. Our data suggests that HMOX1 homeostasis is essential for maintaining cardiac function and promoting cardioprotective effects.
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Affiliation(s)
- Hong Wang
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Juuso Siren
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Sanni Perttunen
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | | | - Yu‐Chia Chen
- Department of AnatomyUniversity of HelsinkiHelsinkiFinland
| | | | - Riikka Kosonen
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Jere Paavola
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Heart and Lung CentreUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Mika Laine
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Heart and Lung CentreUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Ilkka Tikkanen
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Abdominal Centre NephrologyUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Päivi Lakkisto
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Department of Clinical ChemistryUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
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7
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Li J, Li X, Fu S, Meng Y, Lv X, Zhang X, Liu G, Sun J. Adaptation of Glucose Metabolism to Limb Autotomy and Regeneration in the Chinese Mitten Crab. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:205-213. [PMID: 38227174 DOI: 10.1007/s10126-024-10290-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 01/10/2024] [Indexed: 01/17/2024]
Abstract
Limb autotomy and regeneration represent distinctive responses of crustaceans to environmental stress. Glucose metabolism plays a pivotal role in energy generation for tissue development and regeneration across various species. However, the relationship between glucose metabolism and tissue regeneration in crustaceans remains elusive. Therefore, this study is aimed at analyzing the alterations of glucose metabolic profile during limb autotomy and regeneration in Eriocheir sinensis, while also evaluating the effects of carbohydrate supplementation on limb regeneration. The results demonstrated that limb autotomy triggered a metabolic profile adaption at the early stage of regeneration. Hemolymph glucose levels were elevated, and multiple glucose catabolic pathways were enhanced in the hepatopancreas. Additionally, glucose and ATP levels in the regenerative limb were upregulated, along with increased expression of glucose transporters. Furthermore, the gene expression and activity of enzymes involved in gluconeogenesis were repressed in the hepatopancreas. These findings indicate that limb regeneration triggers metabolic profile adaptations to meet the elevated energy requirements. Moreover, the study observed that supplementation with corn starch enhanced limb regeneration capacity by promoting wound healing and blastema growth. Interestingly, dietary carbohydrate addition influenced limb regeneration by stimulating gluconeogenesis rather than glycolysis in the regenerative limb. Thus, these results underscore the adaptation of glucose metabolism during limb autotomy and regeneration, highlighting its essential role in the limb regeneration process of E. sinensis.
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Affiliation(s)
- Ju Li
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China.
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, People's Republic of China.
| | - Xiaohong Li
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China
| | - Simiao Fu
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China
| | - Yuxuan Meng
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China
| | - Xiaoyan Lv
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China
| | - Xin Zhang
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China
| | - Guozheng Liu
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China
| | - Jinsheng Sun
- College of Life Science, Tianjin Normal University, Tianjin, 300387, China.
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, People's Republic of China.
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8
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Sakamoto T, Kelly DP. Cardiac maturation. J Mol Cell Cardiol 2024; 187:38-50. [PMID: 38160640 PMCID: PMC10923079 DOI: 10.1016/j.yjmcc.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
The heart undergoes a dynamic maturation process following birth, in response to a wide range of stimuli, including both physiological and pathological cues. This process entails substantial re-programming of mitochondrial energy metabolism coincident with the emergence of specialized structural and contractile machinery to meet the demands of the adult heart. Many components of this program revert to a more "fetal" format during development of pathological cardiac hypertrophy and heart failure. In this review, emphasis is placed on recent progress in our understanding of the transcriptional control of cardiac maturation, encompassing the results of studies spanning from in vivo models to cardiomyocytes derived from human stem cells. The potential applications of this current state of knowledge to new translational avenues aimed at the treatment of heart failure is also addressed.
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Affiliation(s)
- Tomoya Sakamoto
- Cardiovascular Institute, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Daniel P Kelly
- Cardiovascular Institute, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
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9
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Strash N, DeLuca S, Janer Carattini GL, Chen Y, Wu T, Helfer A, Scherba J, Wang I, Jain M, Naseri R, Bursac N. Time-dependent effects of BRAF-V600E on cell cycling, metabolism, and function in engineered myocardium. SCIENCE ADVANCES 2024; 10:eadh2598. [PMID: 38266090 PMCID: PMC10807800 DOI: 10.1126/sciadv.adh2598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 12/22/2023] [Indexed: 01/26/2024]
Abstract
Candidate cardiomyocyte (CM) mitogens such as those affecting the extracellular signal-regulated kinase (ERK) signaling pathway represent potential targets for functional heart regeneration. We explored whether activating ERK via a constitutively active mutant of B-raf proto-oncogene (BRAF), BRAF-V600E (caBRAF), can induce proproliferative effects in neonatal rat engineered cardiac tissues (ECTs). Sustained CM-specific caBRAF expression induced chronic ERK activation, substantial tissue growth, deficit in sarcomeres and contractile function, and tissue stiffening, all of which persisted for at least 4 weeks of culture. caBRAF-expressing CMs in ECTs exhibited broad transcriptomic changes, shift to glycolytic metabolism, loss of connexin-43, and a promigratory phenotype. Transient, doxycycline-controlled caBRAF expression revealed that the induction of CM cycling is rapid and precedes functional decline, and the effects are reversible only with short-lived ERK activation. Together, direct activation of the BRAF kinase is sufficient to modulate CM cycling and functional phenotype, offering mechanistic insights into roles of ERK signaling in the context of cardiac development and regeneration.
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Affiliation(s)
| | - Sophia DeLuca
- Department of Cell Biology, Duke University, Durham NC, USA
| | | | - Yifan Chen
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Tianyu Wu
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Abbigail Helfer
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Jacob Scherba
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Isabella Wang
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Mehul Jain
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Ramona Naseri
- Department of Biomedical Engineering, Duke University, Durham NC, USA
| | - Nenad Bursac
- Department of Cell Biology, Duke University, Durham NC, USA
- Department of Biomedical Engineering, Duke University, Durham NC, USA
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10
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Beisaw A, Wu CC. Cardiomyocyte maturation and its reversal during cardiac regeneration. Dev Dyn 2024; 253:8-27. [PMID: 36502296 DOI: 10.1002/dvdy.557] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 12/03/2022] [Accepted: 12/03/2022] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular disease is a leading cause of death worldwide. Due to the limited proliferative and regenerative capacity of adult cardiomyocytes, the lost myocardium is not replenished efficiently and is replaced by a fibrotic scar, which eventually leads to heart failure. Current therapies to cure or delay the progression of heart failure are limited; hence, there is a pressing need for regenerative approaches to support the failing heart. Cardiomyocytes undergo a series of transcriptional, structural, and metabolic changes after birth (collectively termed maturation), which is critical for their contractile function but limits the regenerative capacity of the heart. In regenerative organisms, cardiomyocytes revert from their terminally differentiated state into a less mature state (ie, dedifferentiation) to allow for proliferation and regeneration to occur. Importantly, stimulating adult cardiomyocyte dedifferentiation has been shown to promote morphological and functional improvement after myocardial infarction, further highlighting the importance of cardiomyocyte dedifferentiation in heart regeneration. Here, we review several hallmarks of cardiomyocyte maturation, and summarize how their reversal facilitates cardiomyocyte proliferation and heart regeneration. A detailed understanding of how cardiomyocyte dedifferentiation is regulated will provide insights into therapeutic options to promote cardiomyocyte de-maturation and proliferation, and ultimately heart regeneration in mammals.
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Affiliation(s)
- Arica Beisaw
- Institute of Experimental Cardiology, Heidelberg University, Heidelberg, Germany
| | - Chi-Chung Wu
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
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11
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Huang H, Huang GN, Payumo AY. Two decades of heart regeneration research: Cardiomyocyte proliferation and beyond. WIREs Mech Dis 2024; 16:e1629. [PMID: 37700522 PMCID: PMC10840678 DOI: 10.1002/wsbm.1629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 09/14/2023]
Abstract
Interest in vertebrate cardiac regeneration has exploded over the past two decades since the discovery that adult zebrafish are capable of complete heart regeneration, contrasting the limited regenerative potential typically observed in adult mammalian hearts. Undercovering the mechanisms that both support and limit cardiac regeneration across the animal kingdom may provide unique insights in how we may unlock this capacity in adult humans. In this review, we discuss key discoveries in the heart regeneration field over the last 20 years. Initially, seminal findings revealed that pre-existing cardiomyocytes are the major source of regenerated cardiac muscle, drawing interest into the intrinsic mechanisms regulating cardiomyocyte proliferation. Moreover, recent studies have identified the importance of intercellular interactions and physiological adaptations, which highlight the vast complexity of the cardiac regenerative process. Finally, we compare strategies that have been tested to increase the regenerative capacity of the adult mammalian heart. This article is categorized under: Cardiovascular Diseases > Stem Cells and Development.
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Affiliation(s)
- Herman Huang
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA
| | - Guo N. Huang
- Cardiovascular Research Institute & Department of Physiology, University of California, San Francisco, San Francisco, CA, 94158, USA
- Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, 94158, USA
| | - Alexander Y. Payumo
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA
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12
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Santhanam A, Shihabeddin E, Wei H, Wu J, O'Brien J. Molecular basis of retinal remodeling in a zebrafish model of retinitis pigmentosa. Cell Mol Life Sci 2023; 80:362. [PMID: 37979052 PMCID: PMC10657301 DOI: 10.1007/s00018-023-05021-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/10/2023] [Accepted: 10/27/2023] [Indexed: 11/19/2023]
Abstract
A hallmark of inherited retinal degenerative diseases such as retinitis pigmentosa (RP) is progressive structural and functional remodeling of the remaining retinal cells as photoreceptors degenerate. Extensive remodeling of the retina stands as a barrier for the successful implementation of strategies to restore vision. To understand the molecular basis of remodeling, we performed analyses of single-cell transcriptome data from adult zebrafish retina of wild type AB strain (WT) and a P23H mutant rhodopsin transgenic model of RP with continuous degeneration and regeneration. Retinas from both female and male fish were pooled to generate each library, combining data from both sexes. We provide a benchmark atlas of retinal cell type transcriptomes in zebrafish and insight into how each retinal cell type is affected in the P23H model. Oxidative stress is found throughout the retina, with increases in reliance on oxidative metabolism and glycolysis in the affected rods as well as cones, bipolar cells, and retinal ganglion cells. There is also transcriptional evidence for widespread synaptic remodeling and enhancement of glutamatergic transmission in the inner retina. Notably, changes in circadian rhythm regulation are detected in cones, bipolar cells, and retinal pigmented epithelium. We also identify the transcriptomic signatures of retinal progenitor cells and newly formed rods essential for the regenerative process. This comprehensive transcriptomic analysis provides a molecular road map to understand how the retina remodels in the context of chronic retinal degeneration with ongoing regeneration.
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Affiliation(s)
- Abirami Santhanam
- Department of Ophthalmology & Visual Science, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
- University of Houston College of Optometry, Houston, TX, 77204, USA.
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, 77030, USA.
| | - Eyad Shihabeddin
- Department of Ophthalmology & Visual Science, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
- MD Anderson UT Health Graduate School of Biomedical Sciences, Houston, TX, 77030, USA
| | - Haichao Wei
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Jiaqian Wu
- MD Anderson UT Health Graduate School of Biomedical Sciences, Houston, TX, 77030, USA
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - John O'Brien
- Department of Ophthalmology & Visual Science, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
- University of Houston College of Optometry, Houston, TX, 77204, USA.
- MD Anderson UT Health Graduate School of Biomedical Sciences, Houston, TX, 77030, USA.
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13
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Rao A, Lyu B, Jahan I, Lubertozzi A, Zhou G, Tedeschi F, Jankowsky E, Kang J, Carstens B, Poss KD, Baskin K, Goldman JA. The translation initiation factor homolog eif4e1c regulates cardiomyocyte metabolism and proliferation during heart regeneration. Development 2023; 150:dev201376. [PMID: 37306388 PMCID: PMC10281269 DOI: 10.1242/dev.201376] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/28/2023] [Indexed: 05/25/2023]
Abstract
The eIF4E family of translation initiation factors bind 5' methylated caps and act as the limiting step for mRNA translation. The canonical eIF4E1A is required for cell viability, yet other related eIF4E families exist and are utilized in specific contexts or tissues. Here, we describe a family called Eif4e1c, for which we find roles during heart development and regeneration in zebrafish. The Eif4e1c family is present in all aquatic vertebrates but is lost in all terrestrial species. A core group of amino acids shared over 500 million years of evolution forms an interface along the protein surface, suggesting that Eif4e1c functions in a novel pathway. Deletion of eif4e1c in zebrafish caused growth deficits and impaired survival in juveniles. Mutants surviving to adulthood had fewer cardiomyocytes and reduced proliferative responses to cardiac injury. Ribosome profiling of mutant hearts demonstrated changes in translation efficiency of mRNA for genes known to regulate cardiomyocyte proliferation. Although eif4e1c is broadly expressed, its disruption had most notable impact on the heart and at juvenile stages. Our findings reveal context-dependent requirements for translation initiation regulators during heart regeneration.
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Affiliation(s)
- Anupama Rao
- Department of Biological Chemistry and Pharmacology, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Baken Lyu
- Department of Biological Chemistry and Pharmacology, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Ishrat Jahan
- Department of Biological Chemistry and Pharmacology, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Anna Lubertozzi
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Gao Zhou
- Center for RNA Molecular Biology, Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106USA
| | - Frank Tedeschi
- Center for RNA Molecular Biology, Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106USA
| | - Eckhard Jankowsky
- Center for RNA Molecular Biology, Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106USA
| | - Junsu Kang
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Bryan Carstens
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH 43210, USA
| | - Kenneth D. Poss
- Department of Cell Biology, Duke Regeneration Center, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kedryn Baskin
- Department of Cell Biology and Physiology, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Joseph Aaron Goldman
- Department of Biological Chemistry and Pharmacology, The Ohio State University Medical Center, Columbus, OH 43210, USA
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14
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Jin AH, Qian YF, Ren J, Wang JG, Qiao F, Zhang ML, Du ZY, Luo Y. PDK inhibition promotes glucose utilization, reduces hepatic lipid deposition, and improves oxidative stress in largemouth bass (Micropterus salmoides) by increasing pyruvate oxidative phosphorylation. FISH & SHELLFISH IMMUNOLOGY 2023; 140:108969. [PMID: 37488039 DOI: 10.1016/j.fsi.2023.108969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 07/26/2023]
Abstract
In omnivorous fish, the pyruvate dehydrogenase kinases (PDKs)-pyruvate dehydrogenase E1α subunit (PDHE1α) axis is essential in the regulation of carbohydrate oxidative catabolism. Among the existing research, the role of the PDKs-PDHE1α axis in carnivorous fish with poor glucose utilization is unclear. In the present study, we determined the effects of PDK inhibition on the liver glycolipid metabolism of largemouth bass (Micropterus salmoides). DCA is a PDK-specific inhibitor that inhibits PDK by binding the allosteric sites. A total of 160 juvenile largemouth bass were randomly divided into two groups, with four replicates of 20 fish each, fed a control diet and a control diet supplemented with dichloroacetate (DCA) for 8 weeks. The present results showed that DCA supplementation significantly decreased the hepatosomatic index, triglycerides in liver and serum, and total liver lipids of largemouth bass compared with the control group. In addition, compared with the control group, DCA treatment significantly down-regulated gene expression associated with lipogenesis. Furthermore, DCA supplementation significantly decreased the mRNA expression of pdk3a and increased PDHE1α activity. In addition, DCA supplementation improved glucose oxidative catabolism and pyruvate oxidative phosphorylation (OXPHOS) in the liver, as evidenced by low pyruvate content in the liver and up-regulated expressions of glycolysis-related and TCA cycle/OXPHOS-related genes. Moreover, DCA consumption decreased hepatic malondialdehyde (MDA) content, enhanced the activities of superoxide dismutase (SOD), and increased transforming growth factor beta (tgf-β), glutathione S-transferase (gst), and superoxide dismutase 1 (sod1) gene expression compared with the control diet. This study demonstrated that inhibition of PDKs by DCA promoted glucose utilization, reduced hepatic lipid deposition, and improved oxidative stress in largemouth bass by increasing pyruvate OXPHOS. Our findings contribute to the understanding of the underlying mechanism of the PDKs-PDHE1α axis in glucose metabolism and improve the utilization of dietary carbohydrates in farmed carnivorous fish.
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Affiliation(s)
- An-Hui Jin
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China
| | - Yi-Fan Qian
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jiong Ren
- HANOVE Research Center, Wuxi, PR China
| | - Jin-Gang Wang
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China
| | - Fang Qiao
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China
| | - Mei-Ling Zhang
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhen-Yu Du
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China
| | - Yuan Luo
- LANEH, School of Life Sciences, East China Normal University, Shanghai, China.
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15
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Wei KH, Lin IT, Chowdhury K, Lim KL, Liu KT, Ko TM, Chang YM, Yang KC, Lai SL(B. Comparative single-cell profiling reveals distinct cardiac resident macrophages essential for zebrafish heart regeneration. eLife 2023; 12:e84679. [PMID: 37498060 PMCID: PMC10411971 DOI: 10.7554/elife.84679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 07/26/2023] [Indexed: 07/28/2023] Open
Abstract
Zebrafish exhibit a robust ability to regenerate their hearts following injury, and the immune system plays a key role in this process. We previously showed that delaying macrophage recruitment by clodronate liposome (-1d_CL, macrophage-delayed model) impairs neutrophil resolution and heart regeneration, even when the infiltrating macrophage number was restored within the first week post injury (Lai et al., 2017). It is thus intriguing to learn the regenerative macrophage property by comparing these late macrophages vs. control macrophages during cardiac repair. Here, we further investigate the mechanistic insights of heart regeneration by comparing the non-regenerative macrophage-delayed model with regenerative controls. Temporal RNAseq analyses revealed that -1d_CL treatment led to disrupted inflammatory resolution, reactive oxygen species homeostasis, and energy metabolism during cardiac repair. Comparative single-cell RNAseq profiling of inflammatory cells from regenerative vs. non-regenerative hearts further identified heterogeneous macrophages and neutrophils, showing alternative activation and cellular crosstalk leading to neutrophil retention and chronic inflammation. Among macrophages, two residential subpopulations (hbaa+ Mac and timp4.3+ Mac 3) were enriched only in regenerative hearts and barely recovered after +1d_CL treatment. To deplete the resident macrophage without delaying the circulating macrophage recruitment, we established the resident macrophage-deficient model by administrating CL earlier at 8 d (-8d_CL) before cryoinjury. Strikingly, resident macrophage-deficient zebrafish still exhibited defects in revascularization, cardiomyocyte survival, debris clearance, and extracellular matrix remodeling/scar resolution without functional compensation from the circulating/monocyte-derived macrophages. Our results characterized the diverse function and interaction between inflammatory cells and identified unique resident macrophages prerequisite for zebrafish heart regeneration.
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Affiliation(s)
- Ke-Hsuan Wei
- Graduate Institute of Life Sciences, National Defense Medical CenterTaipeiTaiwan
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
| | - I-Ting Lin
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
| | - Kaushik Chowdhury
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Khai Lone Lim
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Kuan-Ting Liu
- Department of Biological Science & Technology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Tai-Ming Ko
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
- Department of Biological Science & Technology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Yao-Ming Chang
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
| | - Kai-Chien Yang
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
- Department and Graduate Institute of Pharmacology, National Taiwan University College of MedicineTaipeiTaiwan
| | - Shih-Lei (Ben) Lai
- Graduate Institute of Life Sciences, National Defense Medical CenterTaipeiTaiwan
- Institute of Biomedical Sciences, Academia SinicaTaipeiTaiwan
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
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16
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Yu F, Cong S, Yap EP, Hausenloy DJ, Ramachandra CJ. Unravelling the Interplay between Cardiac Metabolism and Heart Regeneration. Int J Mol Sci 2023; 24:10300. [PMID: 37373444 DOI: 10.3390/ijms241210300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Ischemic heart disease (IHD) is the leading cause of heart failure (HF) and is a significant cause of morbidity and mortality globally. An ischemic event induces cardiomyocyte death, and the ability for the adult heart to repair itself is challenged by the limited proliferative capacity of resident cardiomyocytes. Intriguingly, changes in metabolic substrate utilisation at birth coincide with the terminal differentiation and reduced proliferation of cardiomyocytes, which argues for a role of cardiac metabolism in heart regeneration. As such, strategies aimed at modulating this metabolism-proliferation axis could, in theory, promote heart regeneration in the setting of IHD. However, the lack of mechanistic understanding of these cellular processes has made it challenging to develop therapeutic modalities that can effectively promote regeneration. Here, we review the role of metabolic substrates and mitochondria in heart regeneration, and discuss potential targets aimed at promoting cardiomyocyte cell cycle re-entry. While advances in cardiovascular therapies have reduced IHD-related deaths, this has resulted in a substantial increase in HF cases. A comprehensive understanding of the interplay between cardiac metabolism and heart regeneration could facilitate the discovery of novel therapeutic targets to repair the damaged heart and reduce risk of HF in patients with IHD.
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Affiliation(s)
- Fan Yu
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore 169609, Singapore
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | - Shuo Cong
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore 169609, Singapore
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | - En Ping Yap
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore 169609, Singapore
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | - Derek J Hausenloy
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore 169609, Singapore
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
- The Hatter Cardiovascular Institute, University College London, London WC1E 6HX, UK
| | - Chrishan J Ramachandra
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore 169609, Singapore
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
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17
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Elia A, Mohsin S, Khan M. Cardiomyocyte Ploidy, Metabolic Reprogramming and Heart Repair. Cells 2023; 12:1571. [PMID: 37371041 DOI: 10.3390/cells12121571] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/27/2023] [Accepted: 04/29/2023] [Indexed: 06/29/2023] Open
Abstract
The adult heart is made up of cardiomyocytes (CMs) that maintain pump function but are unable to divide and form new myocytes in response to myocardial injury. In contrast, the developmental cardiac tissue is made up of proliferative CMs that regenerate injured myocardium. In mammals, CMs during development are diploid and mononucleated. In response to cardiac maturation, CMs undergo polyploidization and binucleation associated with CM functional changes. The transition from mononucleation to binucleation coincides with unique metabolic changes and shift in energy generation. Recent studies provide evidence that metabolic reprogramming promotes CM cell cycle reentry and changes in ploidy and nucleation state in the heart that together enhances cardiac structure and function after injury. This review summarizes current literature regarding changes in CM ploidy and nucleation during development, maturation and in response to cardiac injury. Importantly, how metabolism affects CM fate transition between mononucleation and binucleation and its impact on cell cycle progression, proliferation and ability to regenerate the heart will be discussed.
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Affiliation(s)
- Andrea Elia
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Sadia Mohsin
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Mohsin Khan
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
- Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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18
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Tang Z, Wang K, Lo L, Chen J. Tg(Δ113p53:cmyc) Transgene Upregulates glut1 Expression to Promote Zebrafish Heart Regeneration. J Cardiovasc Dev Dis 2023; 10:246. [PMID: 37367411 DOI: 10.3390/jcdd10060246] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/28/2023] Open
Abstract
The heart switches its main metabolic substrate from glucose to fatty acids shortly after birth, which is one of reasons for the loss of heart regeneration capability in adult mammals. On the contrary, metabolic shifts from oxidative phosphorylation to glucose metabolism promote cardiomyocyte (CM) proliferation after heart injury. However, how glucose transportation in CMs is regulated during heart regeneration is still not fully understood. In this report, we found that the expression of Glut1 (slc2a1) was upregulated around the injury site of zebrafish heart, accompanied by an increase in glucose uptake at the injury area. Knockout of slc2a1a impaired zebrafish heart regeneration. Our previous study has demonstrated that the expression of Δ113p53 is activated after heart injury and Δ113p53+ CMs undergo proliferation to contribute to zebrafish heart regeneration. Next, we used the Δ113p53 promoter to generate the Tg(Δ113p53:cmyc) zebrafish transgenic line. Conditional overexpression of cmyc not only significantly promoted zebrafish CM proliferation and heart regeneration but also significantly enhanced glut1 expression at the injury site. Inhibiting Glut1 diminished the increase in CM proliferation in Tg(Δ113p53:cmyc) injured hearts of zebrafish. Therefore, our results suggest that the activation of cmyc promotes heart regeneration through upregulating the expression of glut1 to speed up glucose transportation.
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Affiliation(s)
- Zimu Tang
- MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Life Sciences, Cancer Center, Zhejiang University, Hangzhou 310058, China
| | - Kaiyuan Wang
- MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Life Sciences, Cancer Center, Zhejiang University, Hangzhou 310058, China
| | - Lijian Lo
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jun Chen
- MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Life Sciences, Cancer Center, Zhejiang University, Hangzhou 310058, China
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19
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Chaudhari U, Pohjolainen L, Ruskoaho H, Talman V. Genome-wide profiling of miRNA-gene regulatory networks in mouse postnatal heart development-implications for cardiac regeneration. Front Cardiovasc Med 2023; 10:1148618. [PMID: 37283582 PMCID: PMC10241105 DOI: 10.3389/fcvm.2023.1148618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/02/2023] [Indexed: 06/08/2023] Open
Abstract
Background After birth, mammalian cardiomyocytes substantially lose proliferative capacity with a concomitant switch from glycolytic to oxidative mitochondrial energy metabolism. Micro-RNAs (miRNAs) regulate gene expression and thus control various cellular processes. Their roles in the postnatal loss of cardiac regeneration are however still largely unclear. Here, we aimed to identify miRNA-gene regulatory networks in the neonatal heart to uncover role of miRNAs in regulation of cell cycle and metabolism. Methods and results We performed global miRNA expression profiling using total RNA extracted from mouse ventricular tissue samples collected on postnatal day 1 (P01), P04, P09, and P23. We used the miRWalk database to predict the potential target genes of differentially expressed miRNAs and our previously published mRNA transcriptomics data to identify verified target genes that showed a concomitant differential expression in the neonatal heart. We then analyzed the biological functions of the identified miRNA-gene regulatory networks using enriched Gene Ontology (GO) and KEGG pathway analyses. Altogether 46 miRNAs were differentially expressed in the distinct stages of neonatal heart development. For twenty miRNAs, up- or downregulation took place within the first 9 postnatal days thus correlating temporally with the loss of cardiac regeneration. Importantly, for several miRNAs, including miR-150-5p, miR-484, and miR-210-3p there are no previous reports about their role in cardiac development or disease. The miRNA-gene regulatory networks of upregulated miRNAs negatively regulated biological processes and KEGG pathways related to cell proliferation, while downregulated miRNAs positively regulated biological processes and KEGG pathways associated with activation of mitochondrial metabolism and developmental hypertrophic growth. Conclusion This study reports miRNAs and miRNA-gene regulatory networks with no previously described role in cardiac development or disease. These findings may help in elucidating regulatory mechanism of cardiac regeneration and in the development of regenerative therapies.
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20
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Nguyen PD, Gooijers I, Campostrini G, Verkerk AO, Honkoop H, Bouwman M, de Bakker DEM, Koopmans T, Vink A, Lamers GEM, Shakked A, Mars J, Mulder AA, Chocron S, Bartscherer K, Tzahor E, Mummery CL, de Boer TP, Bellin M, Bakkers J. Interplay between calcium and sarcomeres directs cardiomyocyte maturation during regeneration. Science 2023; 380:758-764. [PMID: 37200435 DOI: 10.1126/science.abo6718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/20/2023] [Indexed: 05/20/2023]
Abstract
Zebrafish hearts can regenerate by replacing damaged tissue with new cardiomyocytes. Although the steps leading up to the proliferation of surviving cardiomyocytes have been extensively studied, little is known about the mechanisms that control proliferation and redifferentiation to a mature state. We found that the cardiac dyad, a structure that regulates calcium handling and excitation-contraction coupling, played a key role in the redifferentiation process. A component of the cardiac dyad called leucine-rich repeat-containing 10 (Lrrc10) acted as a negative regulator of proliferation, prevented cardiomegaly, and induced redifferentiation. We found that its function was conserved in mammalian cardiomyocytes. This study highlights the importance of the underlying mechanisms required for heart regeneration and their application to the generation of fully functional cardiomyocytes.
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Affiliation(s)
- Phong D Nguyen
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Iris Gooijers
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Giulia Campostrini
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Arie O Verkerk
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam University Medical Center, Amsterdam, Netherlands
- Department of Experimental Cardiology, University of Amsterdam, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Hessel Honkoop
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Mara Bouwman
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Dennis E M de Bakker
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Tim Koopmans
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
- Department of Animal Physiology, Osnabrueck University, Osnabrück, Germany
| | - Aryan Vink
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Gerda E M Lamers
- Core Facility Microscopy, Institute of Biology, Leiden University, Leiden, Netherlands
| | - Avraham Shakked
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Jonas Mars
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Aat A Mulder
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Sonja Chocron
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Kerstin Bartscherer
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
- Department of Animal Physiology, Osnabrueck University, Osnabrück, Germany
| | - Eldad Tzahor
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Christine L Mummery
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Teun P de Boer
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Milena Bellin
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
- Department of Biology, University of Padua, Padua, Italy
- Veneto Institute of Molecular Medicine, Padua, Italy
| | - Jeroen Bakkers
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
- Department of Pediatric Cardiology, Division of Pediatrics, University Medical Center Utrecht, Utrecht, Netherlands
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21
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Botos MA, Arora P, Chouvardas P, Mercader N. Transcriptomic data meta-analysis reveals common and injury model specific gene expression changes in the regenerating zebrafish heart. Sci Rep 2023; 13:5418. [PMID: 37012284 PMCID: PMC10070245 DOI: 10.1038/s41598-023-32272-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
Zebrafish have the capacity to fully regenerate the heart after an injury, which lies in sharp contrast to the irreversible loss of cardiomyocytes after a myocardial infarction in humans. Transcriptomics analysis has contributed to dissect underlying signaling pathways and gene regulatory networks in the zebrafish heart regeneration process. This process has been studied in response to different types of injuries namely: ventricular resection, ventricular cryoinjury, and genetic ablation of cardiomyocytes. However, there exists no database to compare injury specific and core cardiac regeneration responses. Here, we present a meta-analysis of transcriptomic data of regenerating zebrafish hearts in response to these three injury models at 7 days post injury (7dpi). We reanalyzed 36 samples and analyzed the differentially expressed genes (DEG) followed by downstream Gene Ontology Biological Processes (GO:BP) analysis. We found that the three injury models share a common core of DEG encompassing genes involved in cell proliferation, the Wnt signaling pathway and genes that are enriched in fibroblasts. We also found injury-specific gene signatures for resection and genetic ablation, and to a lower extent the cryoinjury model. Finally, we present our data in a user-friendly web interface that displays gene expression signatures across different injury types and highlights the importance to consider injury-specific gene regulatory networks when interpreting the results related to cardiac regeneration in the zebrafish. The analysis is freely available at: https://mybinder.org/v2/gh/MercaderLabAnatomy/PUB_Botos_et_al_2022_shinyapp_binder/HEAD?urlpath=shiny/bus-dashboard/ .
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Affiliation(s)
- Marius Alexandru Botos
- Institute of Anatomy, University of Bern, 3012, Bern, Switzerland
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland
- Laboratory of Systems Biology and Genetics, Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Prateek Arora
- Institute of Anatomy, University of Bern, 3012, Bern, Switzerland
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland
| | - Panagiotis Chouvardas
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland
- Department of Urology, Inselspital, Bern University Hospital, 3010, Bern, Switzerland
| | - Nadia Mercader
- Institute of Anatomy, University of Bern, 3012, Bern, Switzerland.
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland.
- Centro Nacional de Investigaciones Cardiovasculares CNIC, 28029, Madrid, Spain.
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22
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Zuppo DA, Missinato MA, Santana-Santos L, Li G, Benos PV, Tsang M. Foxm1 regulates cardiomyocyte proliferation in adult zebrafish after cardiac injury. Development 2023; 150:dev201163. [PMID: 36846912 PMCID: PMC10108034 DOI: 10.1242/dev.201163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 02/13/2023] [Indexed: 03/01/2023]
Abstract
The regenerative capacity of the mammalian heart is poor, with one potential reason being that adult cardiomyocytes cannot proliferate at sufficient levels to replace lost tissue. During development and neonatal stages, cardiomyocytes can successfully divide under injury conditions; however, as these cells mature their ability to proliferate is lost. Therefore, understanding the regulatory programs that can induce post-mitotic cardiomyocytes into a proliferative state is essential to enhance cardiac regeneration. Here, we report that the forkhead transcription factor Foxm1 is required for cardiomyocyte proliferation after injury through transcriptional regulation of cell cycle genes. Transcriptomic analysis of injured zebrafish hearts revealed that foxm1 expression is increased in border zone cardiomyocytes. Decreased cardiomyocyte proliferation and expression of cell cycle genes in foxm1 mutant hearts was observed, suggesting it is required for cell cycle checkpoints. Subsequent analysis of a candidate Foxm1 target gene, cenpf, revealed that this microtubule and kinetochore binding protein is also required for cardiac regeneration. Moreover, cenpf mutants show increased cardiomyocyte binucleation. Thus, foxm1 and cenpf are required for cardiomyocytes to complete mitosis during zebrafish cardiac regeneration.
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Affiliation(s)
- Daniel A. Zuppo
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA
| | - Maria A. Missinato
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA
- Avidity Biosciences, 10578 Science Center Dr. Suite 125, San Diego, CA 92121, USA
| | - Lucas Santana-Santos
- Department of Computational and Systems Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA
| | - Guang Li
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA
| | - Panayiotis V. Benos
- Department of Computational and Systems Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA
| | - Michael Tsang
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA
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23
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Rolland L, Jopling C. The multifaceted nature of endogenous cardiac regeneration. Front Cardiovasc Med 2023; 10:1138485. [PMID: 36998973 PMCID: PMC10043193 DOI: 10.3389/fcvm.2023.1138485] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/09/2023] [Indexed: 03/15/2023] Open
Abstract
Since the first evidence of cardiac regeneration was observed, almost 50 years ago, more studies have highlighted the endogenous regenerative abilities of several models following cardiac injury. In particular, analysis of cardiac regeneration in zebrafish and neonatal mice has uncovered numerous mechanisms involved in the regenerative process. It is now apparent that cardiac regeneration is not simply achieved by inducing cardiomyocytes to proliferate but requires a multifaceted response involving numerous different cell types, signaling pathways and mechanisms which must all work in harmony in order for regeneration to occur. In this review we will endeavor to highlight a variety of processes that have been identifed as being essential for cardiac regeneration.
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24
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Liuyang S, Wang G, Wang Y, He H, Lyu Y, Cheng L, Yang Z, Guan J, Fu Y, Zhu J, Zhong X, Sun S, Li C, Wang J, Deng H. Highly efficient and rapid generation of human pluripotent stem cells by chemical reprogramming. Cell Stem Cell 2023; 30:450-459.e9. [PMID: 36944335 DOI: 10.1016/j.stem.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 01/17/2023] [Accepted: 02/22/2023] [Indexed: 03/23/2023]
Abstract
We recently demonstrated the chemical reprogramming of human somatic cells to pluripotent stem cells (hCiPSCs), which provides a robust approach for cell fate manipulation. However, the utility of this chemical approach is currently hampered by slow kinetics. Here, by screening for small molecule boosters and systematically optimizing the original condition, we have established a robust, chemically defined reprogramming protocol, which greatly shortens the induction time from ∼50 days to a minimum of 16 days and enables highly reproducible and efficient generation of hCiPSCs from all 17 tested donors. We found that this optimized protocol enabled a more direct reprogramming process by promoting cell proliferation and oxidative phosphorylation metabolic activities at the early stage. Our results highlight a distinct chemical reprogramming pathway that leads to a shortcut for the generation of human pluripotent stem cells, which represents a powerful strategy for human cell fate manipulation.
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Affiliation(s)
- Shijia Liuyang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Guan Wang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Yanglu Wang
- Academy for Advanced Interdisciplinary Studies, The Center for Biomed-X Research, Peking University, Beijing, China
| | - Huanjing He
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Yulin Lyu
- School of Life Sciences, Center for Bioinformatics, Center for Statistical Science, Peking University, Beijing, China
| | - Lin Cheng
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Zhihan Yang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Jingyang Guan
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Yao Fu
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Jialiang Zhu
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Xinxing Zhong
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Shicheng Sun
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Cheng Li
- School of Life Sciences, Center for Bioinformatics, Center for Statistical Science, Peking University, Beijing, China
| | - Jinlin Wang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
| | - Hongkui Deng
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences and MOE Engineering Research Center of Regenerative Medicine, School of Basic Medical Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China.
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25
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Cheng ML, Yang CH, Wu PT, Li YC, Sun HW, Lin G, Ho HY. Malonyl-CoA Accumulation as a Compensatory Cytoprotective Mechanism in Cardiac Cells in Response to 7-Ketocholesterol-Induced Growth Retardation. Int J Mol Sci 2023; 24:ijms24054418. [PMID: 36901848 PMCID: PMC10002498 DOI: 10.3390/ijms24054418] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
The major oxidized product of cholesterol, 7-Ketocholesterol (7KCh), causes cellular oxidative damage. In the present study, we investigated the physiological responses of cardiomyocytes to 7KCh. A 7KCh treatment inhibited the growth of cardiac cells and their mitochondrial oxygen consumption. It was accompanied by a compensatory increase in mitochondrial mass and adaptive metabolic remodeling. The application of [U-13C] glucose labeling revealed an increased production of malonyl-CoA but a decreased formation of hydroxymethylglutaryl-coenzyme A (HMG-CoA) in the 7KCh-treated cells. The flux of the tricarboxylic acid (TCA) cycle decreased, while that of anaplerotic reaction increased, suggesting a net conversion of pyruvate to malonyl-CoA. The accumulation of malonyl-CoA inhibited the carnitine palmitoyltransferase-1 (CPT-1) activity, probably accounting for the 7-KCh-induced suppression of β-oxidation. We further examined the physiological roles of malonyl-CoA accumulation. Treatment with the inhibitor of malonyl-CoA decarboxylase, which increased the intracellular malonyl-CoA level, mitigated the growth inhibitory effect of 7KCh, whereas the treatment with the inhibitor of acetyl-CoA carboxylase, which reduced malonyl-CoA content, aggravated such a growth inhibitory effect. Knockout of malonyl-CoA decarboxylase gene (Mlycd-/-) alleviated the growth inhibitory effect of 7KCh. It was accompanied by improvement of the mitochondrial functions. These findings suggest that the formation of malonyl-CoA may represent a compensatory cytoprotective mechanism to sustain the growth of 7KCh-treated cells.
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Affiliation(s)
- Mei-Ling Cheng
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
- Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan City 33302, Taiwan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Cheng-Hung Yang
- Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Pei-Ting Wu
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Yi-Chin Li
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Hao-Wei Sun
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Gigin Lin
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan City 33302, Taiwan
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan City 33302, Taiwan
- Imaging Core Laboratory, Institute for Radiological Research, Chang Gung University, Taoyuan City 33302, Taiwan
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Hung-Yao Ho
- Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan City 33302, Taiwan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
- Correspondence: ; Tel.: +886-(3)-2118800 (ext. 3318)
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26
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Rigaud VOC, Hoy RC, Kurian J, Zarka C, Behanan M, Brosious I, Pennise J, Patel T, Wang T, Johnson J, Kraus LM, Mohsin S, Houser SR, Khan M. RNA-Binding Protein LIN28a Regulates New Myocyte Formation in the Heart Through Long Noncoding RNA-H19. Circulation 2023; 147:324-337. [PMID: 36314132 PMCID: PMC9870945 DOI: 10.1161/circulationaha.122.059346] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 10/17/2022] [Indexed: 01/29/2023]
Abstract
BACKGROUND Developmental cardiac tissue holds remarkable capacity to regenerate after injury and consists of regenerative mononuclear diploid cardiomyocytes. On maturation, mononuclear diploid cardiomyocytes become binucleated or polyploid and exit the cell cycle. Cardiomyocyte metabolism undergoes a profound shift that coincides with cessation of regeneration in the postnatal heart. However, whether reprogramming metabolism promotes persistence of regenerative mononuclear diploid cardiomyocytes enhancing cardiac function and repair after injury is unknown. Here, we identify a novel role for RNA-binding protein LIN28a, a master regulator of cellular metabolism in cardiac repair after injury. METHODS LIN28a overexpression was tested using mouse transgenesis on postnatal cardiomyocyte numbers, cell cycle, and response to apical resection injury. With the use of neonatal and adult cell culture systems and adult and Mosaic Analysis with Double Markers myocardial injury models in mice, the effect of LIN28a overexpression on cardiomyocyte cell cycle and metabolism was tested. Last, isolated adult cardiomyocytes from LIN28a and wild-type mice 4 days after myocardial injury were used for RNA-immunoprecipitation sequencing. RESULTS LIN28a was found to be active primarily during cardiac development and rapidly decreases after birth. LIN28a reintroduction at postnatal day (P) 1, P3, P5, and P7 decreased maturation-associated polyploidization, nucleation, and cell size, enhancing cardiomyocyte cell cycle activity in LIN28a transgenic pups compared with wild-type littermates. Moreover, LIN28a overexpression extended cardiomyocyte cell cycle activity beyond P7 concurrent with increased cardiac function 30 days after apical resection. In the adult heart, LIN28a overexpression attenuated cardiomyocyte apoptosis, enhanced cell cycle activity, cardiac function, and survival in mice 12 weeks after myocardial infarction compared with wild-type littermate controls. Instead, LIN28a small molecule inhibitor attenuated the proreparative effects of LIN28a on the heart. Neonatal rat ventricular myocytes overexpressing LIN28a mechanistically showed increased glycolysis, ATP production, and levels of metabolic enzymes compared with control. LIN28a immunoprecipitation followed by RNA-immunoprecipitation sequencing in cardiomyocytes isolated from LIN28a-overexpressing hearts after injury identified long noncoding RNA-H19 as its most significantly altered target. Ablation of long noncoding RNA-H19 blunted LIN28a-induced enhancement on cardiomyocyte metabolism and cell cycle activity. CONCLUSIONS Collectively, LIN28a reprograms cardiomyocyte metabolism and promotes persistence of mononuclear diploid cardiomyocytes in the injured heart, enhancing proreparative processes, thereby linking cardiomyocyte metabolism to regulation of ploidy/nucleation and repair in the heart.
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Affiliation(s)
- Vagner Oliveira Carvalho Rigaud
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Robert C Hoy
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Justin Kurian
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Clare Zarka
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Michael Behanan
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Isabella Brosious
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Jennifer Pennise
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Tej Patel
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Tao Wang
- Center for Cardiovascular Research (T.W., J.J., L.M.K., S.M., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Jaslyn Johnson
- Center for Cardiovascular Research (T.W., J.J., L.M.K., S.M., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Lindsay M Kraus
- Center for Cardiovascular Research (T.W., J.J., L.M.K., S.M., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Sadia Mohsin
- Center for Cardiovascular Research (T.W., J.J., L.M.K., S.M., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Steven R Houser
- Center for Cardiovascular Research (T.W., J.J., L.M.K., S.M., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Mohsin Khan
- Center for Metabolic Disease Research (V.0.C.R., R.C.H., J.K., C.Z., M.B., I.B., J.P., T.P., M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
- Department of Cardiovascular Sciences (M.K.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA
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27
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Sorbini M, Arab S, Soni T, Frisiras A, Mehta S. How can the adult zebrafish and neonatal mice teach us about stimulating cardiac regeneration in the human heart? Regen Med 2023; 18:85-99. [PMID: 36416596 DOI: 10.2217/rme-2022-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The proliferative capacity of mammalian cardiomyocytes diminishes shortly after birth. In contrast, adult zebrafish and neonatal mice can regenerate cardiac tissues, highlighting new potential therapeutic avenues. Different factors have been found to promote cardiomyocyte proliferation in zebrafish and neonatal mice; these include maintenance of mononuclear and diploid cardiomyocytes and upregulation of the proto-oncogene c-Myc. The growth factor NRG-1 controls cell proliferation and interacts with the Hippo-Yap pathway to modulate regeneration. Key components of the extracellular matrix such as Agrin are also crucial for cardiac regeneration. Novel therapies explored in this review, include intramyocardial injection of Agrin or zebrafish-ECM and NRG-1 administration. These therapies may induce regeneration in patients and should be further explored.
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Affiliation(s)
- Michela Sorbini
- Barts and the London School of Medicien and Dentistry, Queen Mary University of London, E1 2AD, London, UK.,Imperial College School of Medicine, SW7 2AZ, London, UK
| | - Sammy Arab
- Imperial College School of Medicine, SW7 2AZ, London, UK
| | - Tara Soni
- Imperial College School of Medicine, SW7 2AZ, London, UK
| | | | - Samay Mehta
- Imperial College School of Medicine, SW7 2AZ, London, UK
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28
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Spelat R, Ferro F, Contessotto P, Aljaabary A, Martin-Saldaña S, Jin C, Karlsson NG, Grealy M, Hilscher MM, Magni F, Chinello C, Kilcoyne M, Pandit A. Metabolic reprogramming and membrane glycan remodeling as potential drivers of zebrafish heart regeneration. Commun Biol 2022; 5:1365. [PMID: 36509839 PMCID: PMC9744865 DOI: 10.1038/s42003-022-04328-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
The ability of the zebrafish heart to regenerate following injury makes it a valuable model to deduce why this capability in mammals is limited to early neonatal stages. Although metabolic reprogramming and glycosylation remodeling have emerged as key aspects in many biological processes, how they may trigger a cardiac regenerative response in zebrafish is still a crucial question. Here, by using an up-to-date panel of transcriptomic, proteomic and glycomic approaches, we identify a metabolic switch from mitochondrial oxidative phosphorylation to glycolysis associated with membrane glycosylation remodeling during heart regeneration. Importantly, we establish the N- and O-linked glycan structural repertoire of the regenerating zebrafish heart, and link alterations in both sialylation and high mannose structures across the phases of regeneration. Our results show that metabolic reprogramming and glycan structural remodeling are potential drivers of tissue regeneration after cardiac injury, providing the biological rationale to develop novel therapeutics to elicit heart regeneration in mammals.
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Affiliation(s)
- Renza Spelat
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland ,grid.5970.b0000 0004 1762 9868Neurobiology Sector, International School for Advanced Studies (SISSA), Trieste, Italy
| | - Federico Ferro
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland ,grid.5133.40000 0001 1941 4308Department of Medical Surgery and Health Science, University of Trieste, Trieste, Italy
| | - Paolo Contessotto
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland ,grid.5608.b0000 0004 1757 3470Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Amal Aljaabary
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Sergio Martin-Saldaña
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Chunsheng Jin
- grid.8761.80000 0000 9919 9582Department of Medical Biochemistry, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Niclas G. Karlsson
- grid.8761.80000 0000 9919 9582Department of Medical Biochemistry, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maura Grealy
- Pharmacology and Therapeutics, School of Medicine, University of Galway, Galway, Ireland
| | - Markus M. Hilscher
- grid.10548.380000 0004 1936 9377Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Fulvio Magni
- grid.7563.70000 0001 2174 1754Clinical Proteomics and Metabolomics Unit, School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Clizia Chinello
- grid.7563.70000 0001 2174 1754Clinical Proteomics and Metabolomics Unit, School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Michelle Kilcoyne
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland ,Carbohydrate Signalling Group, Microbiology, School of Natural Sciences, University of Galway, Galway, Ireland
| | - Abhay Pandit
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
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29
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Luo Y, Zhou W, Li R, Limbu SM, Qiao F, Chen L, Zhang M, Du ZY. Inhibition of pyruvate dehydrogenase kinase improves carbohydrate utilization in Nile tilapia by regulating PDK2/4-PDHE1α axis and insulin sensitivity. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2022; 11:25-37. [PMID: 36016966 PMCID: PMC9382415 DOI: 10.1016/j.aninu.2022.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 05/05/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Pyruvate dehydrogenase kinases (PDKs)-pyruvate dehydrogenase E1α subunit (PDHE1α) axis plays an important role in regulating glucose metabolism in mammals. However, the regulatory function of PDKs-PDHE1α axis in the glucose metabolism of fish is not well known. This study determined whether PDKs inhibition could enhance PDHE1α activity, and improve glucose catabolism in fish. Nile tilapia fingerlings (1.90 ± 0.11 g) were randomly divided into 4 treatments in triplicate (30 fish each) and fed control diet without dichloroacetate (DCA) (38% protein, 7% lipid and 45% corn starch) and the control diet supplemented with DCA, which inhibits PDKs through binding the allosteric sites, at 3.75 (DCA3.75), 7.50 (DCA7.50) and 11.25 g/kg (DCA11.25), for 6 wk. The results showed that DCA3.75, DCA7.50 and DCA11.25 significantly increased weight gain, carcass ratio and protein efficiency ratio (P < 0.05) and reduced feed efficiency (P < 0.05) of Nile tilapia. To investigate the effects of DCA on growth performance of Nile tilapia, we selected the lowest dose DCA3.75 for subsequent analysis. Nile tilapia fed on DCA3.75 significantly reduced the mesenteric fat index, serum and liver triglyceride concentration and total lipid content in whole fish, and down-regulated the expressions of genes related to lipogenesis (P < 0.05) compared to the control. The DCA3.75 treatment significantly improved glucose oxidative catabolism and glycogen synthesis in the liver, but significantly reduced the conversion of glucose to lipid (P < 0.05). Furthermore, the DCA3.75 treatment significantly decreased the PDK2/4 gene and protein expressions (P < 0.05), accordingly stimulated PDHE1α activity by decreasing the phosphorylated PDHE1α protein level. In addition, DCA3.75 treatment significantly increased the phosphorylated levels of key proteins involved in insulin signaling pathway and glycogen synthase kinase 3β (P < 0.05). Taken together, the present study demonstrates that PDK2/4 inhibition by using DCA promotes glucose utilization in Nile tilapia by activating PDHE1α and improving insulin sensitivity. Our study helps to understand the regulatory mechanism of glucose metabolism for improving dietary carbohydrate utilization in farmed fish.
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Affiliation(s)
- Yuan Luo
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Wenhao Zhou
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Ruixin Li
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Samwel M. Limbu
- University of Dar Es Salaam, Department of Aquaculture Technology, Dar Es Salaam 60091, Tanzania
- UDSM-ECNU Joint Research Center for Aquaculture and Fish Biology (JRCAFB), Dar Es Salaam 60091, Tanzania
| | - Fang Qiao
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Liqiao Chen
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Meiling Zhang
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Zhen-Yu Du
- LANEH, School of Life Sciences, East China Normal University, Shanghai 200241, China
- ECNU-UDSM Joint Research Center for Aquaculture and Fish Biology (JRCAFB), Shanghai 200241, China
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30
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Magadum A, Renikunta HV, Singh N, Estaras C, Kishore R, Engel FB. Live cell screening identifies glycosides as enhancers of cardiomyocyte cell cycle activity. Front Cardiovasc Med 2022; 9:901396. [PMID: 36225954 PMCID: PMC9549374 DOI: 10.3389/fcvm.2022.901396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 08/10/2022] [Indexed: 12/01/2022] Open
Abstract
Promoting cardiomyocyte proliferation is a promising strategy to regenerate the heart. Yet, so far, it is poorly understood how cardiomyocyte proliferation is regulated, and no factor identified to promote mammalian cardiomyocyte proliferation has been translated into medical practice. Therefore, finding a novel factor will be vital. Here, we established a live cell screening based on mouse embryonic stem cell-derived cardiomyocytes expressing a non-functional human geminin deletion mutant fused to Azami Green (CM7/1-hgem-derived cardiomyocytes). We screened for a subset of compounds of the small molecule library Spectrum Collection and identified 19 potential inducers of stem cell-derived cardiomyocyte proliferation. Furthermore, the pro-proliferative potential of identified candidate compounds was validated in neonatal and adult rat cardiomyocytes as well as human induced pluripotent stem cell-derived cardiomyocytes. 18 of these compounds promoted mitosis and cytokinesis in neonatal rat cardiomyocytes. Among the top four candidates were two cardiac glycosides, peruvoside and convallatoxin, the flavonoid osajin, and the selective α-adrenoceptor antagonist and imidazoline I1 receptor ligand efaroxan hydrochloride. Inhibition of PTEN and GSK-3β enhanced cell cycle re-entry and progression upon stimulation with cardiac glycosides and osajin, while inhibition of IP3 receptors inhibited the cell cycle-promoting effect of cardiac glycosides. Collectively, we established a screening system and identified potential compounds to promote cardiomyocyte proliferation. Our data suggest that modulation of calcium handling and metabolism promotes cardiomyocyte proliferation, and cardiac glycosides might, besides increasing myocardial contraction force, contribute to cardiac repair by inducing cardiomyocyte proliferation.
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Affiliation(s)
- Ajit Magadum
- Department of Cardiac Development and Remodelling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Lewis Katz School of Medicine, Center for Translational Medicine, Temple University, Philadelphia, PA, United States
- *Correspondence: Ajit Magadum
| | - Harsha V. Renikunta
- Department of Cardiac Development and Remodelling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
- Department of Cardiology, Charité Berlin - University Medicine, Berlin, Germany
| | - Neha Singh
- Department of Sports Biosciences, Central University of Rajasthan, Ajmer, India
| | - Conchi Estaras
- Lewis Katz School of Medicine, Center for Translational Medicine, Temple University, Philadelphia, PA, United States
| | - Raj Kishore
- Lewis Katz School of Medicine, Center for Translational Medicine, Temple University, Philadelphia, PA, United States
- Department of Cardiovascular Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Felix B. Engel
- Department of Cardiac Development and Remodelling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Muscle Research Center Erlangen (MURCE), Erlangen, Germany
- Felix B. Engel
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31
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Miller JM, Meki MH, Elnakib A, Ou Q, Abouleisa RRE, Tang XL, Salama ABM, Gebreil A, Lin C, Abdeltawab H, Khalifa F, Hill BG, Abi-Gerges N, Bolli R, El-Baz AS, Giridharan GA, Mohamed TMA. Biomimetic cardiac tissue culture model (CTCM) to emulate cardiac physiology and pathophysiology ex vivo. Commun Biol 2022; 5:934. [PMID: 36085302 PMCID: PMC9463130 DOI: 10.1038/s42003-022-03919-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
There is need for a reliable in vitro system that can accurately replicate the cardiac physiological environment for drug testing. The limited availability of human heart tissue culture systems has led to inaccurate interpretations of cardiac-related drug effects. Here, we developed a cardiac tissue culture model (CTCM) that can electro-mechanically stimulate heart slices with physiological stretches in systole and diastole during the cardiac cycle. After 12 days in culture, this approach partially improved the viability of heart slices but did not completely maintain their structural integrity. Therefore, following small molecule screening, we found that the incorporation of 100 nM tri-iodothyronine (T3) and 1 μM dexamethasone (Dex) into our culture media preserved the microscopic structure of the slices for 12 days. When combined with T3/Dex treatment, the CTCM system maintained the transcriptional profile, viability, metabolic activity, and structural integrity for 12 days at the same levels as the fresh heart tissue. Furthermore, overstretching the cardiac tissue induced cardiac hypertrophic signaling in culture, which provides a proof of concept for the ability of the CTCM to emulate cardiac stretch-induced hypertrophic conditions. In conclusion, CTCM can emulate cardiac physiology and pathophysiology in culture for an extended time, thereby enabling reliable drug screening.
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Affiliation(s)
- Jessica M Miller
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
- Department of Bioengineering, University of Louisville, Louisville, USA
| | - Moustafa H Meki
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
- Department of Bioengineering, University of Louisville, Louisville, USA
| | - Ahmed Elnakib
- Department of Bioengineering, University of Louisville, Louisville, USA
| | - Qinghui Ou
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
| | - Riham R E Abouleisa
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
| | - Xian-Liang Tang
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
| | - Abou Bakr M Salama
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
- Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ahmad Gebreil
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
| | - Cindy Lin
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
| | - Hisham Abdeltawab
- Department of Bioengineering, University of Louisville, Louisville, USA
| | - Fahmi Khalifa
- Department of Bioengineering, University of Louisville, Louisville, USA
| | - Bradford G Hill
- Envirome Institute, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, USA
| | | | - Roberto Bolli
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA
| | - Ayman S El-Baz
- Department of Bioengineering, University of Louisville, Louisville, USA
| | | | - Tamer M A Mohamed
- From the Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, USA.
- Department of Bioengineering, University of Louisville, Louisville, USA.
- Envirome Institute, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, USA.
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, USA.
- Institute of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom.
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32
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Brandão AS, Borbinha J, Pereira T, Brito PH, Lourenço R, Bensimon-Brito A, Jacinto A. A regeneration-triggered metabolic adaptation is necessary for cell identity transitions and cell cycle re-entry to support blastema formation and bone regeneration. eLife 2022; 11:e76987. [PMID: 35993337 PMCID: PMC9395193 DOI: 10.7554/elife.76987] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 07/29/2022] [Indexed: 11/29/2022] Open
Abstract
Regeneration depends on the ability of mature cells at the injury site to respond to injury, generating tissue-specific progenitors that incorporate the blastema and proliferate to reconstitute the original organ architecture. The metabolic microenvironment has been tightly connected to cell function and identity during development and tumorigenesis. Yet, the link between metabolism and cell identity at the mechanistic level in a regenerative context remains unclear. The adult zebrafish caudal fin, and bone cells specifically, have been crucial for the understanding of mature cell contribution to tissue regeneration. Here, we use this model to explore the relevance of glucose metabolism for the cell fate transitions preceding new osteoblast formation and blastema assembly. We show that injury triggers a modulation in the metabolic profile at early stages of regeneration to enhance glycolysis at the expense of mitochondrial oxidation. This metabolic adaptation mediates transcriptional changes that make mature osteoblast amenable to be reprogramed into pre-osteoblasts and induces cell cycle re-entry and progression. Manipulation of the metabolic profile led to severe reduction of the pre-osteoblast pool, diminishing their capacity to generate new osteoblasts, and to a complete abrogation of blastema formation. Overall, our data indicate that metabolic alterations have a powerful instructive role in regulating genetic programs that dictate fate decisions and stimulate proliferation, thereby providing a deeper understanding on the mechanisms regulating blastema formation and bone regeneration.
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Affiliation(s)
- Ana S Brandão
- CEDOC, NOVA Medical School, Universidade Nova de LisboaLisbonPortugal
| | - Jorge Borbinha
- CEDOC, NOVA Medical School, Universidade Nova de LisboaLisbonPortugal
| | - Telmo Pereira
- CEDOC, NOVA Medical School, Universidade Nova de LisboaLisbonPortugal
| | - Patrícia H Brito
- UCIBIO, Dept. Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de LisboaLisbonPortugal
| | - Raquel Lourenço
- CEDOC, NOVA Medical School, Universidade Nova de LisboaLisbonPortugal
| | | | - Antonio Jacinto
- CEDOC, NOVA Medical School, Universidade Nova de LisboaLisbonPortugal
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33
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Duan X, Liu X, Zhan Z. Metabolic Regulation of Cardiac Regeneration. Front Cardiovasc Med 2022; 9:933060. [PMID: 35872916 PMCID: PMC9304552 DOI: 10.3389/fcvm.2022.933060] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/13/2022] [Indexed: 12/16/2022] Open
Abstract
The mortality due to heart diseases remains highest in the world every year, with ischemic cardiomyopathy being the prime cause. The irreversible loss of cardiomyocytes following myocardial injury leads to compromised contractility of the remaining myocardium, adverse cardiac remodeling, and ultimately heart failure. The hearts of adult mammals can hardly regenerate after cardiac injury since adult cardiomyocytes exit the cell cycle. Nonetheless, the hearts of early neonatal mammals possess a stronger capacity for regeneration. To improve the prognosis of patients with heart failure and to find the effective therapeutic strategies for it, it is essential to promote endogenous regeneration of adult mammalian cardiomyocytes. Mitochondrial metabolism maintains normal physiological functions of the heart and compensates for heart failure. In recent decades, the focus is on the changes in myocardial energy metabolism, including glucose, fatty acid, and amino acid metabolism, in cardiac physiological and pathological states. In addition to being a source of energy, metabolites are becoming key regulators of gene expression and epigenetic patterns, which may affect heart regeneration. However, the myocardial energy metabolism during heart regeneration is majorly unknown. This review focuses on the role of energy metabolism in cardiac regeneration, intending to shed light on the strategies for manipulating heart regeneration and promoting heart repair after cardiac injury.
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Affiliation(s)
- Xuewen Duan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Institute of Heart Failure, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xingguang Liu
- Department of Pathogen Biology, Naval Medical University, Shanghai, China
- Xingguang Liu,
| | - Zhenzhen Zhan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Institute of Heart Failure, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Zhenzhen Zhan,
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34
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Ashraf S, Taegtmeyer H, Harmancey R. Prolonged cardiac NR4A2 activation causes dilated cardiomyopathy in mice. Basic Res Cardiol 2022; 117:33. [PMID: 35776225 PMCID: PMC9249728 DOI: 10.1007/s00395-022-00942-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 06/14/2022] [Accepted: 06/23/2022] [Indexed: 02/03/2023]
Abstract
Transcription factors play a fundamental role in cardiovascular adaptation to stress. Nuclear receptor subfamily 4 group A member 2 (NR4A2; NURR1) is an immediate-early gene and transcription factor with a versatile role throughout many organs. In the adult mammalian heart, and particularly in cardiac myocytes, NR4A2 is strongly up-regulated in response to beta-adrenergic stimulation. The physiologic implications of this increase remain unknown. In this study, we aimed to interrogate the consequences of cardiac NR4A2 up-regulation under normal conditions and in response to pressure overload. In mice, tamoxifen-dependent, cardiomyocyte-restricted overexpression of NR4A2 led to cardiomyocyte hypertrophy, left ventricular dilation, heart failure, and death within 40 days. Chronic NR4A2 induction also precipitated cardiac decompensation during transverse aortic constriction (TAC)-induced pressure overload. Mechanistically, NR4A2 caused adult cardiac myocytes to return to a fetal-like phenotype, with a switch to glycolytic metabolism and disassembly of sarcomeric structures. NR4A2 also re-activated cell cycle progression and stimulated DNA replication and karyokinesis but failed to induce cytokinesis, thereby promoting multinucleation of cardiac myocytes. Activation of cell cycle checkpoints led to induction of an apoptotic response which ultimately resulted in excessive loss of cardiac myocytes and impaired left ventricular contractile function. In summary, myocyte-specific overexpression of NR4A2 in the postnatal mammalian heart results in increased cell cycle re-entry and DNA replication but does not result in cardiac myocyte division. Our findings expose a novel function for the nuclear receptor as a critical regulator in the self-renewal of the cardiac myocyte and heart regeneration.
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Affiliation(s)
- Sadia Ashraf
- Division of Cardiology, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St., Houston, TX, 77030, USA
| | - Heinrich Taegtmeyer
- Division of Cardiology, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St., Houston, TX, 77030, USA
| | - Romain Harmancey
- Division of Cardiology, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St., Houston, TX, 77030, USA.
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35
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Rigaud VO, Zarka C, Kurian J, Harlamova D, Elia A, Kasatkin N, Johnson J, Behanan M, Kraus L, Pepper H, Snyder NW, Mohsin S, Houser S, Khan M. UCP2 modulates cardiomyocyte cell cycle activity, acetyl-CoA and histone acetylation in response to moderate hypoxia. JCI Insight 2022; 7:155475. [PMID: 35771638 PMCID: PMC9462500 DOI: 10.1172/jci.insight.155475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 06/27/2022] [Indexed: 11/17/2022] Open
Abstract
Developmental cardiac tissue is regenerative while operating under low oxygen. After birth, ambient oxygen is associated with cardiomyocyte cell cycle exit and regeneration. Likewise, cardiac metabolism undergoes a shift with cardiac maturation. Whether there are common regulators of cardiomyocyte cell cycle linking metabolism to oxygen tension remains unknown. The objective of the study is to determine whether mitochondrial UCP2 is a metabolic oxygen sensor regulating cardiomyocyte cell cycle. Neonatal rat ventricular myocytes (NRVMs) under moderate hypoxia showed increased cell cycle activity and UCP2 expression. NRVMs exhibited a metabolic shift towards glycolysis, reduced citrate synthase, mtDNA, ΔΨm and DNA damage/oxidative stress while loss of UCP2 reversed this phenotype. Next, WT and UCP2KO mice kept under hypoxia for 4 weeks showed significant decline in cardiac function that was more pronounced in UCP2KO animals. Cardiomyocyte cell cycle activity was reduced while fibrosis and DNA damage was significantly increased in UCP2KO animals compared to WT under hypoxia. Mechanistically, UCP2 increased acetyl-CoA levels, histone acetylation and altered chromatin modifiers linking metabolism to cardiomyocyte cell cycle under hypoxia. Here, we show a novel role for mitochondrial UCP2 as an oxygen sensor regulating cardiomyocyte cell cycle activity, acetyl-CoA levels and histone acetylation in response to moderate hypoxia.
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Affiliation(s)
- Vagner Oc Rigaud
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Clare Zarka
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Justin Kurian
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Daria Harlamova
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Andrea Elia
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Nicole Kasatkin
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Jaslyn Johnson
- Cardiovascular Research Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Michael Behanan
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Lindsay Kraus
- Cardiovascular Research Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Hannah Pepper
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Nathaniel W Snyder
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Sadia Mohsin
- Cardiovascular Research Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Steven Houser
- Cardiovascular Research Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
| | - Mohsin Khan
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, United States of America
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36
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de Sena-Tomás C, Aleman AG, Ford C, Varshney A, Yao D, Harrington JK, Saúde L, Ramialison M, Targoff KL. Activation of Nkx2.5 transcriptional program is required for adult myocardial repair. Nat Commun 2022; 13:2970. [PMID: 35624100 PMCID: PMC9142600 DOI: 10.1038/s41467-022-30468-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 05/03/2022] [Indexed: 11/09/2022] Open
Abstract
The cardiac developmental network has been associated with myocardial regenerative potential. However, the embryonic signals triggered following injury have yet to be fully elucidated. Nkx2.5 is a key causative transcription factor associated with human congenital heart disease and one of the earliest markers of cardiac progenitors, thus it serves as a promising candidate. Here, we show that cardiac-specific RNA-sequencing studies reveal a disrupted embryonic transcriptional profile in the adult Nkx2.5 loss-of-function myocardium. nkx2.5-/- fish exhibit an impaired ability to recover following ventricular apex amputation with diminished dedifferentiation and proliferation. Complex network analyses illuminate that Nkx2.5 is required to provoke proteolytic pathways necessary for sarcomere disassembly and to mount a proliferative response for cardiomyocyte renewal. Moreover, Nkx2.5 targets embedded in these distinct gene regulatory modules coordinate appropriate, multi-faceted injury responses. Altogether, our findings support a previously unrecognized, Nkx2.5-dependent regenerative circuit that invokes myocardial cell cycle re-entry, proteolysis, and mitochondrial metabolism to ensure effective regeneration in the teleost heart.
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Affiliation(s)
- Carmen de Sena-Tomás
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Angelika G Aleman
- Department of Physiology & Cellular Biophysics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Caitlin Ford
- Department of Genetics & Development, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Akriti Varshney
- Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
- Australian Regenerative Medicine Institute & Systems Biology Institute Australia, Monash University, Clayton, VIC, 3800, Australia
| | - Di Yao
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Jamie K Harrington
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Leonor Saúde
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, 1649-028, Lisboa, Portugal
| | - Mirana Ramialison
- Australian Regenerative Medicine Institute & Systems Biology Institute Australia, Monash University, Clayton, VIC, 3800, Australia
- Murdoch Children's Research Institute & Department of Peadiatrics, The University of Melbourne, Parkville, VIC, 3052, Australia
| | - Kimara L Targoff
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
- Columbia Stem Cell Initiative, Columbia University, New York, NY, 10032, USA.
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37
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Dard L, Hubert C, Esteves P, Blanchard W, Bou About G, Baldasseroni L, Dumon E, Angelini C, Delourme M, Guyonnet-Duperat V, Claverol S, Bonneu M, Fontenille L, Kissa K, Séguéla PE, Thambo JB, Levy N, Herault Y, Bellance N, Dias Amoedo N, Magdinier F, Sorg T, Lacombe D, Rossignol R. HRAS germline mutations impair LKB1/AMPK signaling and mitochondrial homeostasis in Costello syndrome models. J Clin Invest 2022; 132:131053. [PMID: 35230976 PMCID: PMC9012293 DOI: 10.1172/jci131053] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 02/23/2022] [Indexed: 11/17/2022] Open
Abstract
Germline mutations that activate genes in the canonical RAS/MAPK signaling pathway are responsible for rare human developmental disorders known as RASopathies. Here, we analyzed the molecular determinants of Costello syndrome (CS) using a mouse model expressing HRAS p.G12S, patient skin fibroblasts, hiPSC-derived human cardiomyocytes, a HRAS p.G12V zebrafish model and human fibroblasts expressing lentiviral constructs carrying HRAS p.G12S or HRAS p.G12A mutations. The findings revealed alteration of mitochondrial proteostasis and defective oxidative phosphorylation in the heart and skeletal muscle of Costello mice that were also found in the cell models of the disease. The underpinning mechanisms involved the inhibition of the AMPK signaling pathway by mutant forms of HRAS, leading to alteration of mitochondrial proteostasis and bioenergetics. Pharmacological activation of mitochondrial bioenergetics and quality control restored organelle function in HRAS p.G12A and p.G12S cell models, reduced left ventricle hypertrophy in the CS mice and diminished the occurrence of developmental defects in the CS zebrafish model. Collectively, these findings highlight the importance of mitochondrial proteostasis in the pathophysiology of RASopathies and suggest that patients with Costello syndrome may benefit from treatment with mitochondrial modulators.
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Affiliation(s)
| | | | | | | | - Ghina Bou About
- Université de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de la Souris (ICS), Illkirch, France
| | | | - Elodie Dumon
- INSERM U688, University of Bordeaux, Bordeaux, France
| | | | | | | | | | - Marc Bonneu
- Plateforme Proteome, University of Bordeaux, Bordeaux, France
| | | | | | | | | | - Nicolas Levy
- Marseille Medical Genetics, INSERM, Marseille, France
| | - Yann Herault
- Université de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de la Souris (ICS), Illkirch, France
| | | | | | | | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de la Souris (ICS), Illkirch, France
| | - Didier Lacombe
- Medical Genetics Department, Bordeaux University Hospital CHU Bordeaux, INSERM U121, Bordeaux, France
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38
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Miklas JW, Levy S, Hofsteen P, Mex DI, Clark E, Muster J, Robitaille AM, Sivaram G, Abell L, Goodson JM, Pranoto I, Madan A, Chin MT, Tian R, Murry CE, Moon RT, Wang Y, Ruohola-Baker H. Amino acid primed mTOR activity is essential for heart regeneration. iScience 2022; 25:103574. [PMID: 34988408 PMCID: PMC8704488 DOI: 10.1016/j.isci.2021.103574] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 06/17/2021] [Accepted: 12/03/2021] [Indexed: 01/01/2023] Open
Abstract
Heart disease is the leading cause of death with no method to repair damaged myocardium due to the limited proliferative capacity of adult cardiomyocytes. Curiously, mouse neonates and zebrafish can regenerate their hearts via cardiomyocyte de-differentiation and proliferation. However, a molecular mechanism of why these cardiomyocytes can re-enter cell cycle is poorly understood. Here, we identify a unique metabolic state that primes adult zebrafish and neonatal mouse ventricular cardiomyocytes to proliferate. Zebrafish and neonatal mouse hearts display elevated glutamine levels, predisposing them to amino-acid-driven activation of TOR, and that TOR activation is required for zebrafish cardiomyocyte regeneration in vivo. Through a multi-omics approach with cellular validation we identify metabolic and mitochondrial changes during the first week of regeneration. These data suggest that regeneration of zebrafish myocardium is driven by metabolic remodeling and reveals a unique metabolic regulator, TOR-primed state, in which zebrafish and mammalian cardiomyocytes are regeneration competent.
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Affiliation(s)
- Jason W. Miklas
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Shiri Levy
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Biochemistry, University of Washington, School of Medicine, Seattle, WA 98195, USA
| | - Peter Hofsteen
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Pathology, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
| | - Diego Ic Mex
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Biochemistry, University of Washington, School of Medicine, Seattle, WA 98195, USA
| | - Elisa Clark
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Jeanot Muster
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Pharmacology, University of Washington, Seattle, WA 98109, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Aaron M. Robitaille
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Pharmacology, University of Washington, Seattle, WA 98109, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Gargi Sivaram
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Biochemistry, University of Washington, School of Medicine, Seattle, WA 98195, USA
| | - Lauren Abell
- Department of Pathology, University of Washington, Seattle, WA 98109, USA
- Mitochondria and Metabolism Center, University of Washington, Seattle, WA 98109, USA
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA
| | - Jamie M. Goodson
- Department of Pathology, University of Washington, Seattle, WA 98109, USA
| | - Inez Pranoto
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Biochemistry, University of Washington, School of Medicine, Seattle, WA 98195, USA
| | - Anup Madan
- Covance Genomics Laboratory, Redmond, WA 98052, USA
| | - Michael T. Chin
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Pathology, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
| | - Rong Tian
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Biochemistry, University of Washington, School of Medicine, Seattle, WA 98195, USA
- Mitochondria and Metabolism Center, University of Washington, Seattle, WA 98109, USA
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA
| | - Charles E. Murry
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Pathology, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
| | - Randall T. Moon
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Pharmacology, University of Washington, Seattle, WA 98109, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Yuliang Wang
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Paul G. Allen School of Computer Science & Engineering, University of Washington, Seattle, WA 98195, USA
| | - Hannele Ruohola-Baker
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA 98109, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Biochemistry, University of Washington, School of Medicine, Seattle, WA 98195, USA
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Abstract
The adult mammalian heart is recalcitrant to regeneration after injury, in part due to the postmitotic nature of cardiomyocytes. Accumulating evidence suggests that cardiomyocyte proliferation in fetal or neonatal mammals and in regenerative non-mammalian models depends on a conducive metabolic state. Results from numerous studies in adult hearts indicate that conditions of relatively low fatty acid oxidation, low reactive oxygen species generation, and high glycolysis are required for induction of cardiomyocyte proliferation. Glycolysis appears particularly important because it provides branchpoint metabolites for several biosynthetic pathways that are essential for synthesis of nucleotides and nucleotide sugars, amino acids, and glycerophospholipids, all of which are required for daughter cell formation. In addition, the proliferative cardiomyocyte phenotype is supported in part by relatively low oxygen tensions and through the actions of critical transcription factors, coactivators, and signaling pathways that promote a more glycolytic and proliferative cardiomyocyte phenotype, such as hypoxia inducible factor 1α (Hif1α), Yes-associated protein (Yap), and ErbB2. Interventions that inhibit glycolysis or its integrated biosynthetic pathways almost universally impair cardiomyocyte proliferative capacity. Furthermore, metabolic enzymes that augment biosynthetic capacity such as phosphoenolpyruvate carboxykinase 2 and pyruvate kinase M2 appear to be amplifiers of cardiomyocyte proliferation. Collectively, these studies suggest that acquisition of a glycolytic and biosynthetic metabolic phenotype is a sine qua non of cardiomyocyte proliferation. Further knowledge of the regulatory mechanisms that control substrate partitioning to coordinate biosynthesis with energy provision could be leveraged to prompt or augment cardiomyocyte division and to promote cardiac repair.
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Affiliation(s)
- Tamer M A Mohamed
- Division of Cardiovascular Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, USA
- Corresponding authors: Tamer M.A. Mohamed, PhD, Department of Medicine, Division of Cardiovascular Medicine, Institute of Molecular Cardiology, 580 S. Preston Street, Rm 121A, Louisville, KY 40202, USA.
| | - Riham Abouleisa
- Division of Cardiovascular Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, USA
| | - Bradford G Hill
- Division of Environmental Medicine, Christina Lee Brown Envirome Institute, Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
- Bradford G. Hill, PhD, Department of Medicine, Christina Lee Brown Envirome Institute, Diabetes and Obesity Center, University of Louisville, 580 S. Preston Street, Rm 321E, Louisville, KY 40202, USA.
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40
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Concomitant Activation of OSM and LIF Receptor by a Dual-Specific hlOSM Variant Confers Cardioprotection after Myocardial Infarction in Mice. Int J Mol Sci 2021; 23:ijms23010353. [PMID: 35008777 PMCID: PMC8745562 DOI: 10.3390/ijms23010353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 01/11/2023] Open
Abstract
Oncostatin M (OSM) and leukemia inhibitory factor (LIF) signaling protects the heart after myocardial infarction (MI). In mice, oncostatin M receptor (OSMR) and leukemia inhibitory factor receptor (LIFR) are selectively activated by the respective cognate ligands while OSM activates both the OSMR and LIFR in humans, which prevents efficient translation of mouse data into potential clinical applications. We used an engineered human-like OSM (hlOSM) protein, capable to signal via both OSMR and LIFR, to evaluate beneficial effects on cardiomyocytes and hearts after MI in comparison to selective stimulation of either LIFR or OSMR. Cell viability assays, transcriptome and immunoblot analysis revealed increased survival of hypoxic cardiomyocytes by mLIF, mOSM and hlOSM stimulation, associated with increased activation of STAT3. Kinetic expression profiling of infarcted hearts further specified a transient increase of OSM and LIF during the early inflammatory phase of cardiac remodeling. A post-infarction delivery of hlOSM but not mOSM or mLIF within this time period combined with cardiac magnetic resonance imaging-based strain analysis uncovered a global cardioprotective effect on infarcted hearts. Our data conclusively suggest that a simultaneous and rapid activation of OSMR and LIFR after MI offers a therapeutic opportunity to preserve functional and structural integrity of the infarcted heart.
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41
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Energy metabolism homeostasis in cardiovascular diseases. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2021; 18:1044-1057. [PMID: 35136399 PMCID: PMC8782763 DOI: 10.11909/j.issn.1671-5411.2021.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in the general population. Energy metabolism disturbance is one of the early abnormalities in CVDs, such as coronary heart disease, diabetic cardiomyopathy, and heart failure. To explore the role of myocardial energy homeostasis disturbance in CVDs, it is important to understand myocardial metabolism in the normal heart and their function in the complex pathophysiology of CVDs. In this article, we summarized lipid metabolism/lipotoxicity and glucose metabolism/insulin resistance in the heart, focused on the metabolic regulation during neonatal and ageing heart, proposed potential metabolic mechanisms for cardiac regeneration and degeneration. We provided an overview of emerging molecular network among cardiac proliferation, regeneration, and metabolic disturbance. These novel targets promise a new era for the treatment of CVDs.
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Li P, Li F, Tang L, Zhang W, Jin Y, Gu H, Zhu W. Metabolic Profile in Neonatal Pig Hearts. Front Cardiovasc Med 2021; 8:763984. [PMID: 34722687 PMCID: PMC8551694 DOI: 10.3389/fcvm.2021.763984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/22/2021] [Indexed: 11/13/2022] Open
Abstract
We evaluated the metabolic profile in pig hearts at postnatal day 1, 3, 7, and 28 (P1, P3, P7, and P28, respectively) using a targeted liquid chromatography tandem mass spectrometry assay. Our data showed that there is a clear separation of the detected metabolites in P1 vs. P28 hearts. Active anabolisms of nucleotide and proteins were observed in P1 hearts when cardiomyocytes retain high cell cycle activity. However, the active posttranslational protein modification, metabolic switch from glucose to fatty acids, and the reduced ratio of collagen to total protein were observed in P28 hearts when cardiomyocytes withdraw from cell cycle.
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Affiliation(s)
- Pengsheng Li
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ, United States
| | - Fan Li
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ, United States.,Laboratory of Regenerative Medicine in Sports Science, School of Physical Education and Sports Science, South China Normal University, Guangzhou, China
| | - Ling Tang
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ, United States
| | - Wenjing Zhang
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States.,Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, United States.,Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Center for Translational Science, Florida International University, Port St. Lucie, FL, United States
| | - Yan Jin
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
| | - Haiwei Gu
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States.,Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, United States.,Department of Cellular Biology and Pharmacology, Herbert Wertheim College of Medicine, Center for Translational Science, Florida International University, Port St. Lucie, FL, United States
| | - Wuqiang Zhu
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ, United States
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43
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Günthel M, van Duijvenboden K, de Bakker DEM, Hooijkaas IB, Bakkers J, Barnett P, Christoffels VM. Epigenetic State Changes Underlie Metabolic Switch in Mouse Post-Infarction Border Zone Cardiomyocytes. J Cardiovasc Dev Dis 2021; 8:134. [PMID: 34821687 PMCID: PMC8620718 DOI: 10.3390/jcdd8110134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/11/2021] [Accepted: 10/19/2021] [Indexed: 02/07/2023] Open
Abstract
Myocardial infarction causes ventricular muscle loss and formation of scar tissue. The surviving myocardium in the border zone, located adjacent to the infarct, undergoes profound changes in function, structure and composition. How and to what extent these changes of border zone cardiomyocytes are regulated epigenetically is not fully understood. Here, we obtained transcriptomes of PCM-1-sorted mouse cardiomyocyte nuclei of healthy left ventricle and 7 days post myocardial infarction border zone tissue. We validated previously observed downregulation of genes involved in fatty acid metabolism, oxidative phosphorylation and mitochondrial function in border zone-derived cardiomyocytes, and observed a modest induction of genes involved in glycolysis, including Slc2a1 (Glut1) and Pfkp. To gain insight into the underlying epigenetic regulatory mechanisms, we performed H3K27ac profiling of healthy and border zone cardiomyocyte nuclei. We confirmed the switch from Mef2- to AP-1 chromatin association in border zone cardiomyocytes, and observed, in addition, an enrichment of PPAR/RXR binding motifs in the sites with reduced H3K27ac signal. We detected downregulation and accompanying epigenetic state changes at several key PPAR target genes including Ppargc1a (PGC-1α), Cpt2, Ech1, Fabpc3 and Vldrl in border zone cardiomyocytes. These data indicate that changes in epigenetic state and gene regulation underlie the maintained metabolic switch in border zone cardiomyocytes.
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Affiliation(s)
- Marie Günthel
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam University Medical Centers, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.); (K.v.D.); (I.B.H.); (P.B.)
| | - Karel van Duijvenboden
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam University Medical Centers, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.); (K.v.D.); (I.B.H.); (P.B.)
| | - Dennis E. M. de Bakker
- Hubrecht Institute-KNAW, University Medical Center Utrecht, 3584 CT Utrecht, The Netherlands; (D.E.M.d.B.); (J.B.)
- Leibniz Institute on Aging-Fritz Lipmann Institute, 07745 Jena, Germany
| | - Ingeborg B. Hooijkaas
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam University Medical Centers, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.); (K.v.D.); (I.B.H.); (P.B.)
| | - Jeroen Bakkers
- Hubrecht Institute-KNAW, University Medical Center Utrecht, 3584 CT Utrecht, The Netherlands; (D.E.M.d.B.); (J.B.)
- Department of Pediatric Cardiology, Division of Pediatrics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Phil Barnett
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam University Medical Centers, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.); (K.v.D.); (I.B.H.); (P.B.)
| | - Vincent M. Christoffels
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam University Medical Centers, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.); (K.v.D.); (I.B.H.); (P.B.)
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44
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Valussi M, Besser J, Wystub-Lis K, Zukunft S, Richter M, Kubin T, Boettger T, Braun T. Repression of Osmr and Fgfr1 by miR-1/133a prevents cardiomyocyte dedifferentiation and cell cycle entry in the adult heart. SCIENCE ADVANCES 2021; 7:eabi6648. [PMID: 34644107 PMCID: PMC8514096 DOI: 10.1126/sciadv.abi6648] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Dedifferentiation of cardiomyocytes is part of the survival program in the remodeling myocardium and may be essential for enabling cardiomyocyte proliferation. In addition to transcriptional processes, non-coding RNAs play important functions for the control of cell cycle regulation in cardiomyocytes and cardiac regeneration. Here, we demonstrate that suppression of FGFR1 and OSMR by miR-1/133a is instrumental to prevent cardiomyocyte dedifferentiation and cell cycle entry in the adult heart. Concomitant inactivation of both miR-1/133a clusters in adult cardiomyocytes activates expression of cell cycle regulators, induces a switch from fatty acid to glycolytic metabolism, and changes expression of extracellular matrix genes. Inhibition of FGFR and OSMR pathways prevents most effects of miR-1/133a inactivation. Short-term miR-1/133a depletion protects cardiomyocytes against ischemia, while extended loss of miR-1/133a causes heart failure. Our results demonstrate a crucial role of miR-1/133a–mediated suppression of Osmr and Ffgfr1 in maintaining the postmitotic differentiated state of cardiomyocytes.
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Affiliation(s)
- Melissa Valussi
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, D-61231 Bad Nauheim, Germany
| | - Johannes Besser
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, D-61231 Bad Nauheim, Germany
| | - Katharina Wystub-Lis
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, D-61231 Bad Nauheim, Germany
| | - Sven Zukunft
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, D-60590 Frankfurt am Main, Germany
| | - Manfred Richter
- Department of Cardiac Surgery, Kerckhoff Heart Center, Benekestrasse 2-8, D-61231 Bad Nauheim, Germany
| | - Thomas Kubin
- Department of Cardiac Surgery, Kerckhoff Heart Center, Benekestrasse 2-8, D-61231 Bad Nauheim, Germany
| | - Thomas Boettger
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, D-61231 Bad Nauheim, Germany
- Corresponding author. (T.Bo.); (T.Br.)
| | - Thomas Braun
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, D-61231 Bad Nauheim, Germany
- German Center for Cardiovascular Research (DZHK), Berlin, Germany
- German Center for Lung Research (DZL), Giessen, Germany
- Corresponding author. (T.Bo.); (T.Br.)
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45
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Advances in Cardiac Development and Regeneration Using Zebrafish as a Model System for High-Throughput Research. J Dev Biol 2021; 9:jdb9040040. [PMID: 34698193 PMCID: PMC8544412 DOI: 10.3390/jdb9040040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/19/2021] [Accepted: 09/22/2021] [Indexed: 11/16/2022] Open
Abstract
Heart disease is the leading cause of death in the United States and worldwide. Understanding the molecular mechanisms of cardiac development and regeneration will improve diagnostic and therapeutic interventions against heart disease. In this direction, zebrafish is an excellent model because several processes of zebrafish heart development are largely conserved in humans, and zebrafish has several advantages as a model organism. Zebrafish transcriptomic profiles undergo alterations during different stages of cardiac development and regeneration which are revealed by RNA-sequencing. ChIP-sequencing has detected genome-wide occupancy of histone post-translational modifications that epigenetically regulate gene expression and identified a locus with enhancer-like characteristics. ATAC-sequencing has identified active enhancers in cardiac progenitor cells during early developmental stages which overlap with occupancy of histone modifications of active transcription as determined by ChIP-sequencing. CRISPR-mediated editing of the zebrafish genome shows how chromatin modifiers and DNA-binding proteins regulate heart development, in association with crucial signaling pathways. Hence, more studies in this direction are essential to improve human health because they answer fundamental questions on cardiac development and regeneration, their differences, and why zebrafish hearts regenerate upon injury, unlike humans. This review focuses on some of the latest studies using state-of-the-art technology enabled by the elegant yet simple zebrafish.
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46
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Honkoop H, Nguyen PD, van der Velden VEM, Sonnen KF, Bakkers J. Live imaging of adult zebrafish cardiomyocyte proliferation ex vivo. Development 2021; 148:271839. [PMID: 34397091 PMCID: PMC8489017 DOI: 10.1242/dev.199740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 08/04/2021] [Indexed: 12/24/2022]
Abstract
Zebrafish are excellent at regenerating their heart by reinitiating proliferation in pre-existing cardiomyocytes. Studying how zebrafish achieve this holds great potential in developing new strategies to boost mammalian heart regeneration. Nevertheless, the lack of appropriate live-imaging tools for the adult zebrafish heart has limited detailed studies into the dynamics underlying cardiomyocyte proliferation. Here, we address this by developing a system in which cardiac slices of the injured zebrafish heart are cultured ex vivo for several days while retaining key regenerative characteristics, including cardiomyocyte proliferation. In addition, we show that the cardiac slice culture system is compatible with live timelapse imaging and allows manipulation of regenerating cardiomyocytes with drugs that normally would have toxic effects that prevent their use. Finally, we use the cardiac slices to demonstrate that adult cardiomyocytes with fully assembled sarcomeres can partially disassemble their sarcomeres in a calpain- and proteasome-dependent manner to progress through nuclear division and cytokinesis. In conclusion, we have developed a cardiac slice culture system, which allows imaging of native cardiomyocyte dynamics in real time to discover cellular mechanisms during heart regeneration.
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Affiliation(s)
- Hessel Honkoop
- Hubrecht Institute-KNAW and Utrecht University Medical Center, Utrecht 3584CT, The Netherlands
| | - Phong D Nguyen
- Hubrecht Institute-KNAW and Utrecht University Medical Center, Utrecht 3584CT, The Netherlands
| | | | - Katharina F Sonnen
- Hubrecht Institute-KNAW and Utrecht University Medical Center, Utrecht 3584CT, The Netherlands
| | - Jeroen Bakkers
- Hubrecht Institute-KNAW and Utrecht University Medical Center, Utrecht 3584CT, The Netherlands.,Department of Pediatric Cardiology, Division of Pediatrics, University Medical Center Utrecht, Utrecht 3584EA, The Netherlands
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47
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Tsedeke AT, Allanki S, Gentile A, Jimenez-Amilburu V, Rasouli SJ, Guenther S, Lai SL, Stainier DY, Marín-Juez R. Cardiomyocyte heterogeneity during zebrafish development and regeneration. Dev Biol 2021; 476:259-271. [DOI: 10.1016/j.ydbio.2021.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/22/2021] [Accepted: 03/19/2021] [Indexed: 12/31/2022]
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48
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Bae J, Paltzer WG, Mahmoud AI. The Role of Metabolism in Heart Failure and Regeneration. Front Cardiovasc Med 2021; 8:702920. [PMID: 34336958 PMCID: PMC8322239 DOI: 10.3389/fcvm.2021.702920] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/23/2021] [Indexed: 12/25/2022] Open
Abstract
Heart failure is the leading cause of death worldwide. The inability of the adult mammalian heart to regenerate following injury results in the development of systolic heart failure. Thus, identifying novel approaches toward regenerating the adult heart has enormous therapeutic potential for adult heart failure. Mitochondrial metabolism is an essential homeostatic process for maintaining growth and survival. The emerging role of mitochondrial metabolism in controlling cell fate and function is beginning to be appreciated. Recent evidence suggests that metabolism controls biological processes including cell proliferation and differentiation, which has profound implications during development and regeneration. The regenerative potential of the mammalian heart is lost by the first week of postnatal development when cardiomyocytes exit the cell cycle and become terminally differentiated. This inability to regenerate following injury is correlated with the metabolic shift from glycolysis to fatty acid oxidation that occurs during heart maturation in the postnatal heart. Thus, understanding the mechanisms that regulate cardiac metabolism is key to unlocking metabolic interventions during development, disease, and regeneration. In this review, we will focus on the emerging role of metabolism in cardiac development and regeneration and discuss the potential of targeting metabolism for treatment of heart failure.
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Affiliation(s)
- Jiyoung Bae
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States
| | - Wyatt G Paltzer
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States
| | - Ahmed I Mahmoud
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States
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49
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Nakano H, Fajardo VM, Nakano A. The role of glucose in physiological and pathological heart formation. Dev Biol 2021; 475:222-233. [PMID: 33577830 PMCID: PMC8107118 DOI: 10.1016/j.ydbio.2021.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/30/2020] [Accepted: 01/29/2021] [Indexed: 02/08/2023]
Abstract
Cells display distinct metabolic characteristics depending on its differentiation stage. The fuel type of the cells serves not only as a source of energy but also as a driver of differentiation. Glucose, the primary nutrient to the cells, is a critical regulator of rapidly growing embryos. This metabolic change is a consequence as well as a cause of changes in genetic program. Disturbance of fetal glucose metabolism such as in diabetic pregnancy is associated with congenital heart disease. In utero hyperglycemia impacts the left-right axis establishment, migration of cardiac neural crest cells, conotruncal formation and mesenchymal formation of the cardiac cushion during early embryogenesis and causes cardiac hypertrophy in late fetal stages. In this review, we focus on the role of glucose in cardiogenesis and the molecular mechanisms underlying heart diseases associated with hyperglycemia.
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Affiliation(s)
- Haruko Nakano
- Department of Molecular, Cell, and Developmental Biology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Viviana M Fajardo
- Department of Pediatrics, Division of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Atsushi Nakano
- Department of Molecular, Cell, and Developmental Biology, University of California Los Angeles, Los Angeles, CA 90095, USA; Department of Medicine, Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California Los Angeles, Los Angeles, CA 90095, USA.
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50
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Sakaguchi A, Kimura W. Metabolic regulation of cardiac regeneration: roles of hypoxia, energy homeostasis, and mitochondrial dynamics. Curr Opin Genet Dev 2021; 70:54-60. [PMID: 34130066 DOI: 10.1016/j.gde.2021.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/16/2021] [Accepted: 05/22/2021] [Indexed: 11/19/2022]
Abstract
The adult mammalian heart cannot regenerate after myocardial injury because most cardiomyocytes lack the ability to proliferate. In contrast, cardiomyocytes of vertebrates such as zebrafish and urodele amphibians, but also those of fetal and early neonatal mammals, maintain the ability to proliferate and therefore support regeneration of injured tissue and recovery of cardiac function. Whether evolutionarily conserved regulatory mechanisms of cardiomyocyte proliferation exist and, if so, whether they are modifiable to allow cardiac regeneration in adult mammals are questions of great scientific and medical interest. Environmental hypoxia, hypoxia-induced cellular signaling, and mitochondrial metabolism have recently emerged as key regulators of the cardiomyocyte cell cycle and cardiac regeneration in vertebrates. In this review, we address the cardiac regenerative capacity of several model animals and discuss potential strategies related to hypoxia and mitochondrial metabolism for induction of therapeutic heart regeneration.
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Affiliation(s)
- Akane Sakaguchi
- Laboratory for Heart Regeneration, RIKEN Center for Biosystem Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0043, Japan
| | - Wataru Kimura
- Laboratory for Heart Regeneration, RIKEN Center for Biosystem Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0043, Japan.
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