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Schmidt S, Li W, Schubert M, Binnewerg B, Prönnecke C, Zitzmann FD, Bulst M, Wegner S, Meier M, Guan K, Jahnke HG. Novel high-dense microelectrode array based multimodal bioelectronic monitoring system for cardiac arrhythmia re-entry analysis. Biosens Bioelectron 2024; 252:116120. [PMID: 38394704 DOI: 10.1016/j.bios.2024.116120] [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: 10/31/2023] [Revised: 01/26/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024]
Abstract
In recent decades, significant progress has been made in the treatment of heart diseases, particularly in the field of personalized medicine. Despite the development of genetic tests, phenotyping and risk stratification are performed based on clinical findings and invasive in vivo techniques, such as stimulation conduction mapping techniques and programmed ventricular pacing. Consequently, label-free non-invasive in vitro functional analysis systems are urgently needed for more accurate and effective in vitro risk stratification, model-based therapy planning, and clinical safety profile evaluation of drugs. To overcome these limitations, a novel multilayer high-density microelectrode array (HD-MEA), with an optimized configuration of 512 sensing and 4 pacing electrodes on a sensor area of 100 mm2, was developed for the bioelectronic detection of re-entry arrhythmia patterns. Together with a co-developed front-end, we monitored label-free and in parallel cardiac electrophysiology based on field potential monitoring and mechanical contraction using impedance spectroscopy at the same microelectrode. In proof of principle experiments, human induced pluripotent stem cell (hiPS)-derived cardiomyocytes were cultured on HD-MEAs and used to demonstrate the sensitive quantification of contraction strength modulation by cardioactive drugs such as blebbistatin (IC50 = 4.2 μM), omecamtiv and levosimendan. Strikingly, arrhythmia-typical rotor patterns (re-entry) can be induced by optimized electrical stimulation sequences and detected with high spatial resolution. Therefore, we provide a novel cardiac re-entry analysis system as a promising reference point for diagnostic approaches based on in vitro assays using patient-specific hiPS-derived cardiomyocytes.
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Affiliation(s)
- Sabine Schmidt
- Centre for Biotechnology and Biomedicine, Biochemical Cell Technology, Leipzig University, Deutscher Platz 5, D-04103, Leipzig, Germany
| | - Wener Li
- Institute of Pharmacology and Toxicology, Carl Gustav Carus Medical Faculty, Technical University Dresden, Fetscherstraße 74, D-01307, Dresden, Germany
| | - Mario Schubert
- Institute of Pharmacology and Toxicology, Carl Gustav Carus Medical Faculty, Technical University Dresden, Fetscherstraße 74, D-01307, Dresden, Germany
| | - Björn Binnewerg
- Institute of Pharmacology and Toxicology, Carl Gustav Carus Medical Faculty, Technical University Dresden, Fetscherstraße 74, D-01307, Dresden, Germany
| | - Christoph Prönnecke
- Centre for Biotechnology and Biomedicine, Biochemical Cell Technology, Leipzig University, Deutscher Platz 5, D-04103, Leipzig, Germany
| | - Franziska D Zitzmann
- Centre for Biotechnology and Biomedicine, Biochemical Cell Technology, Leipzig University, Deutscher Platz 5, D-04103, Leipzig, Germany
| | - Martin Bulst
- Sciospec Scientific Instruments GmbH, Leipziger Str. 43b, D-04828, Bennewitz, Germany
| | - Sebastian Wegner
- Sciospec Scientific Instruments GmbH, Leipziger Str. 43b, D-04828, Bennewitz, Germany
| | - Matthias Meier
- Centre for Biotechnology and Biomedicine, Biochemical Cell Technology, Leipzig University, Deutscher Platz 5, D-04103, Leipzig, Germany; Helmholtz Pioneer Campus, Helmholtz Zentrum Munich, Neuherberg, Germany
| | - Kaomei Guan
- Institute of Pharmacology and Toxicology, Carl Gustav Carus Medical Faculty, Technical University Dresden, Fetscherstraße 74, D-01307, Dresden, Germany
| | - Heinz-Georg Jahnke
- Centre for Biotechnology and Biomedicine, Biochemical Cell Technology, Leipzig University, Deutscher Platz 5, D-04103, Leipzig, Germany.
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Manda V, Pavelka J, Lau E. Proteomics applications in next generation induced pluripotent stem cell models. Expert Rev Proteomics 2024; 21:217-228. [PMID: 38511670 PMCID: PMC11065590 DOI: 10.1080/14789450.2024.2334033] [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: 06/14/2023] [Accepted: 03/08/2024] [Indexed: 03/22/2024]
Abstract
INTRODUCTION Induced pluripotent stem (iPS) cell technology has transformed biomedical research. New opportunities now exist to create new organoids, microtissues, and body-on-a-chip systems for basic biology investigations and clinical translations. AREAS COVERED We discuss the utility of proteomics for attaining an unbiased view into protein expression changes during iPS cell differentiation, cell maturation, and tissue generation. The ability to discover cell-type specific protein markers during the differentiation and maturation of iPS-derived cells has led to new strategies to improve cell production yield and fidelity. In parallel, proteomic characterization of iPS-derived organoids is helping to realize the goal of bridging in vitro and in vivo systems. EXPERT OPINIONS We discuss some current challenges of proteomics in iPS cell research and future directions, including the integration of proteomic and transcriptomic data for systems-level analysis.
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Affiliation(s)
- Vyshnavi Manda
- Department of Medicine, Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado, USA
- Consortium for Fibrosis Research and Translation, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Jay Pavelka
- Department of Medicine, Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado, USA
- Consortium for Fibrosis Research and Translation, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Edward Lau
- Department of Medicine, Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado, USA
- Consortium for Fibrosis Research and Translation, University of Colorado School of Medicine, Aurora, Colorado, USA
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3
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Seibertz F, Voigt N. High-throughput methods for cardiac cellular electrophysiology studies: the road to personalized medicine. Am J Physiol Heart Circ Physiol 2024; 326:H938-H949. [PMID: 38276947 DOI: 10.1152/ajpheart.00599.2023] [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: 09/26/2023] [Revised: 01/22/2024] [Accepted: 01/22/2024] [Indexed: 01/27/2024]
Abstract
Personalized medicine refers to the tailored application of medical treatment at an individual level, considering the specific genotype or phenotype of each patient for targeted therapy. In the context of cardiovascular diseases, implementing personalized medicine is challenging due to the high costs involved and the slow pace of identifying the pathogenicity of genetic variants, deciphering molecular mechanisms of disease, and testing treatment approaches. Scalable cellular models such as human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) serve as useful in vitro tools that reflect individual patient genetics and retain clinical phenotypes. High-throughput functional assessment of these constructs is necessary to rapidly assess cardiac pathogenicity and test new therapeutics if personalized medicine is to become a reality. High-throughput photometry recordings of single cells coupled with potentiometric probes offer cost-effective alternatives to traditional patch-clamp assessments of cardiomyocyte action potential characteristics. Importantly, automated patch-clamp (APC) is rapidly emerging in the pharmaceutical industry and academia as a powerful method to assess individual membrane-bound ionic currents and ion channel biophysics over multiple cells in parallel. Now amenable to primary cell and hiPSC-CM measurement, APC represents an exciting leap forward in the characterization of a multitude of molecular mechanisms that underlie clinical cardiac phenotypes. This review provides a summary of state-of-the-art high-throughput electrophysiological techniques to assess cardiac electrophysiology and an overview of recent works that successfully integrate these methods into basic science research that could potentially facilitate future implementation of personalized medicine at a clinical level.
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Affiliation(s)
- Fitzwilliam Seibertz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells," Georg-August University Göttingen, Göttingen, Germany
- Nanion Technologies, GmbH, Munich, Germany
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells," Georg-August University Göttingen, Göttingen, Germany
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4
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Rapöhn M, Cyganek L, Voigt N, Hasenfuß G, Lehnart SE, Wegener JW. Noninvasive analysis of contractility during identical maturations revealed two phenotypes in ventricular but not in atrial iPSC-CM. Am J Physiol Heart Circ Physiol 2024; 326:H599-H611. [PMID: 38180453 DOI: 10.1152/ajpheart.00527.2023] [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: 08/28/2023] [Revised: 12/06/2023] [Accepted: 01/02/2024] [Indexed: 01/06/2024]
Abstract
Patient-derived induced pluripotent stem cells (iPSCs) can be differentiated into atrial and ventricular cardiomyocytes to allow for personalized drug screening. A hallmark of differentiation is the manifestation of spontaneous beating in a two-dimensional (2-D) cell culture. However, an outstanding observation is the high variability in this maturation process. We valued that contractile parameters change during differentiation serving as an indicator of maturation. Consequently, we recorded noninvasively spontaneous motion activity during the differentiation of male iPSC toward iPSC cardiomyocytes (iPSC-CMs) to further analyze similar maturated iPSC-CMs. Surprisingly, our results show that identical differentiations into ventricular iPSC-CMs are variable with respect to contractile parameters resulting in two distinct subpopulations of ventricular-like cells. In contrast, differentiation into atrial iPSC-CMs resulted in only one phenotype. We propose that the noninvasive and cost-effective recording of contractile activity during maturation using a smartphone device may help to reduce the variability in results frequently reported in studies on ventricular iPSC-CMs.NEW & NOTEWORTHY Differentiation of induced pluripotent stem cells (iPSCs) into iPSC-derived cardiomyocytes (iPSC-CMs) exhibits a high variability in mature parameters. Here, we monitored noninvasively contractile parameters of iPSC-CM during full-time differentiation using a smartphone device. Our results show that parallel maturations of iPSCs into ventricular iPSC-CMs, but not into atrial iPSC-CMs, resulted in two distinct subpopulations of iPSC-CMs. These findings suggest that our cost-effective method may help to compare iPSC-CMs at the same maturation level.
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Affiliation(s)
- Marcel Rapöhn
- Department of Cardiology and Pulmonology, University Medical Center of Göttingen, Göttingen, Germany
| | - Lukas Cyganek
- Department of Cardiology and Pulmonology, University Medical Center of Göttingen, Göttingen, Germany
- German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislaufforschung), Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells," University of Göttingen, Göttingen, Germany
| | - Niels Voigt
- German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislaufforschung), Göttingen, Germany
- Department of Pharmacology and Toxicology, University Medical Center of Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells," University of Göttingen, Göttingen, Germany
| | - Gerd Hasenfuß
- Department of Cardiology and Pulmonology, University Medical Center of Göttingen, Göttingen, Germany
- German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislaufforschung), Göttingen, Germany
| | - Stephan E Lehnart
- Department of Cardiology and Pulmonology, University Medical Center of Göttingen, Göttingen, Germany
- German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislaufforschung), Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells," University of Göttingen, Göttingen, Germany
| | - Jörg W Wegener
- Department of Cardiology and Pulmonology, University Medical Center of Göttingen, Göttingen, Germany
- German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislaufforschung), Göttingen, Germany
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Lee SG, Song GE, Seok J, Kim J, Kim MW, Rhee J, Park S, Jeong KS, Lee S, Lee YH, Jeong Y, Chung HM, Kim CY. Evaluation of the cardiotoxicity potential of bisphenol analogues in human induced pluripotent stem cells derived cardiomyocytes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116108. [PMID: 38364764 DOI: 10.1016/j.ecoenv.2024.116108] [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: 08/27/2023] [Revised: 01/31/2024] [Accepted: 02/09/2024] [Indexed: 02/18/2024]
Abstract
The importance of evaluating the cardiotoxicity potential of common chemicals as well as new drugs is increasing as a result of the development of animal alternative test methods using human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM). Bisphenol A (BPA), which is used as a main material in plastics, is known as an endocrine-disrupting chemical, and recently reported to cause cardiotoxicity through inhibition of ion channels in CMs even with acute exposure. Accordingly, the need for the development of alternatives to BPA has been highlighted, and structural analogues including bisphenol AF, C, E, F, and S have been developed. However, cardiotoxicity data for analogues of bisphenol are not well known. In this study, in order to evaluate the cardiotoxicity potential of analogues, including BPA, a survival test of hiPSC-CMs and a dual-cardiotoxicity evaluation based on a multi-electrode array were performed. Acute exposure to all bisphenol analogues did not affect survival rate, but spike amplitude, beat period, and field potential duration were decreased in a dose-dependent manner in most of the bisphenols except bisphenol S. In addition, bisphenols, except for bisphenol S, reduced the contractile force of hiPSC-CMs and resulted in beating arrest at high doses. Taken together, it can be suggested that the developed bisphenol analogues could cause cardiotoxicity even with acute exposure, and it is considered that the application of the MEA-based dual-cardiotoxicity evaluation method can be an effective help in the development of safe alternatives.
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Affiliation(s)
- Seul-Gi Lee
- Department of Stem Cell Biology, School of Medicine, Konkuk University, 120 Neungdong-Ro, Gwangjin-Gu, Seoul 05029, Republic of Korea; College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Gyeong-Eun Song
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Jin Seok
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Jin Kim
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Min Woo Kim
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Jooeon Rhee
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Shinhye Park
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Kyu Sik Jeong
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Suemin Lee
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Yun Hyeong Lee
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Youngin Jeong
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Hyung Min Chung
- Department of Stem Cell Biology, School of Medicine, Konkuk University, 120 Neungdong-Ro, Gwangjin-Gu, Seoul 05029, Republic of Korea; Miraecell Bio Co. Ltd., Seoul 04795, Republic of Korea
| | - C-Yoon Kim
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea.
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6
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Yao Y, Gupta D, Yelon D. The MEK-ERK signaling pathway promotes maintenance of cardiac chamber identity. Development 2024; 151:dev202183. [PMID: 38293792 PMCID: PMC10911121 DOI: 10.1242/dev.202183] [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: 07/17/2023] [Accepted: 01/21/2024] [Indexed: 02/01/2024]
Abstract
Ventricular and atrial cardiac chambers have unique structural and contractile characteristics that underlie their distinct functions. The maintenance of chamber-specific features requires active reinforcement, even in differentiated cardiomyocytes. Previous studies in zebrafish have shown that sustained FGF signaling acts upstream of Nkx factors to maintain ventricular identity, but the rest of this maintenance pathway remains unclear. Here, we show that MEK1/2-ERK1/2 signaling acts downstream of FGF and upstream of Nkx factors to promote ventricular maintenance. Inhibition of MEK signaling, like inhibition of FGF signaling, results in ectopic atrial gene expression and reduced ventricular gene expression in ventricular cardiomyocytes. FGF and MEK signaling both influence ventricular maintenance over a similar timeframe, when phosphorylated ERK (pERK) is present in the myocardium. However, the role of FGF-MEK activity appears to be context-dependent: some ventricular regions are more sensitive than others to inhibition of FGF-MEK signaling. Additionally, in the atrium, although endogenous pERK does not induce ventricular traits, heightened MEK signaling can provoke ectopic ventricular gene expression. Together, our data reveal chamber-specific roles of MEK-ERK signaling in the maintenance of ventricular and atrial identities.
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Affiliation(s)
- Yao Yao
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Deepam Gupta
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Deborah Yelon
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
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7
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Wegener JW, Mitronova GY, ElShareif L, Quentin C, Belov V, Pochechueva T, Hasenfuss G, Ackermann L, Lehnart SE. A dual-targeted drug inhibits cardiac ryanodine receptor Ca 2+ leak but activates SERCA2a Ca 2+ uptake. Life Sci Alliance 2024; 7:e202302278. [PMID: 38012000 PMCID: PMC10681910 DOI: 10.26508/lsa.202302278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
In the heart, genetic or acquired mishandling of diastolic [Ca2+] by ryanodine receptor type 2 (RyR2) overactivity correlates with risks of arrhythmia and sudden cardiac death. Strategies to avoid these risks include decrease of Ca2+ release by drugs modulating RyR2 activity or increase in Ca2+ uptake by drugs modulating SR Ca2+ ATPase (SERCA2a) activity. Here, we combine these strategies by developing experimental compounds that act simultaneously on both processes. Our screening efforts identified the new 1,4-benzothiazepine derivative GM1869 as a promising compound. Consequently, we comparatively studied the effects of the known RyR2 modulators Dantrolene and S36 together with GM1869 on RyR2 and SERCA2a activity in cardiomyocytes from wild type and arrhythmia-susceptible RyR2R2474S/+ mice by confocal live-cell imaging. All drugs reduced RyR2-mediated Ca2+ spark frequency but only GM1869 accelerated SERCA2a-mediated decay of Ca2+ transients in murine and human cardiomyocytes. Our data indicate that S36 and GM1869 are more suitable than dantrolene to directly modulate RyR2 activity, especially in RyR2R2474S/+ mice. Remarkably, GM1869 may represent a new dual-acting lead compound for maintenance of diastolic [Ca2+].
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Affiliation(s)
- Jörg W Wegener
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gyuzel Y Mitronova
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lina ElShareif
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
| | - Christine Quentin
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Vladimir Belov
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Tatiana Pochechueva
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gerd Hasenfuss
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lutz Ackermann
- Georg-August University of Göttingen, Institute of Organic and Biomolecular Chemistry, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Stephan E Lehnart
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
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8
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Takaoka N, Yamane M, Hasegawa A, Obara K, Shirai K, Aki R, Hatakeyama H, Hamada Y, Arakawa N, Tanaka M, Hoffman RM, Amoh Y. Rat hair-follicle-associated pluripotent (HAP) stem cells can differentiate into atrial or ventricular cardiomyocytes in culture controlled by specific supplementation. PLoS One 2024; 19:e0297443. [PMID: 38277391 PMCID: PMC10817212 DOI: 10.1371/journal.pone.0297443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 01/04/2024] [Indexed: 01/28/2024] Open
Abstract
There has been only limited success to differentiate adult stem cells into cardiomyocyte subtypes. In the present study, we have successfully induced beating atrial and ventricular cardiomyocytes from rat hair-follicle-associated pluripotent (HAP) stem cells, which are adult stem cells located in the bulge area. HAP stem cells differentiated into atrial cardiomyocytes in culture with the combination of isoproterenol, activin A, bone morphogenetic protein 4 (BMP4), basic fibroblast growth factor (bFGF), and cyclosporine A (CSA). HAP stem cells differentiated into ventricular cardiomyocytes in culture with the combination of activin A, BMP4, bFGF, inhibitor of Wnt production-4 (IWP4), and vascular endothelial growth factor (VEGF). Differentiated atrial cardiomyocytes were specifically stained for anti-myosin light chain 2a (MLC2a) antibody. Ventricular cardiomyocytes were specially stained for anti-myosin light chain 2v (MLC2v) antibody. Quantitative Polymerase Chain Reaction (qPCR) showed significant expression of MLC2a in atrial cardiomyocytes and MLC2v in ventricular cardiomyocytes. Both differentiated atrial and ventricular cardiomyocytes showed characteristic waveforms in Ca2+ imaging. Differentiated atrial and ventricular cardiomyocytes formed long myocardial fibers and beat as a functional syncytium, having a structure similar to adult cardiomyocytes. The present results demonstrated that it is possible to induce cardiomyocyte subtypes, atrial and ventricular cardiomyocytes, from HAP stem cells.
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Affiliation(s)
- Nanako Takaoka
- Department of Dermatology, Kitasato University Graduate School of Medical Sciences, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Michiko Yamane
- Department of Dermatology, Kitasato University Graduate School of Medical Sciences, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Ayami Hasegawa
- Department of Dermatology, Kitasato University Graduate School of Medical Sciences, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Koya Obara
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Kyoumi Shirai
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Ryoichi Aki
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Hiroyasu Hatakeyama
- Department of Physiology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Yuko Hamada
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Nobuko Arakawa
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Manabu Tanaka
- Bio-Imaging Center, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
| | - Robert M. Hoffman
- AntiCancer, Inc., San Diego, CA, United States of America
- Department of Surgery, University of California, San Diego, CA, United States of America
| | - Yasuyuki Amoh
- Department of Dermatology, Kitasato University School of Medicine, Kitasato University School of Medicine, Minami Ward, Sagamihara, Japan
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9
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Bloothooft M, Verbruggen B, Seibertz F, van der Heyden MAG, Voigt N, de Boer TP. Recording ten-fold larger I Kr conductances with automated patch clamping using equimolar Cs + solutions. Front Physiol 2024; 15:1298340. [PMID: 38328302 PMCID: PMC10847579 DOI: 10.3389/fphys.2024.1298340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/09/2024] [Indexed: 02/09/2024] Open
Abstract
Background: The rapid delayed rectifier potassium current (IKr) is important for cardiac repolarization and is most often involved in drug-induced arrhythmias. However, accurately measuring this current can be challenging in human-induced pluripotent stem cell (hiPSC)-derived cardiomyocytes because of its small current density. Interestingly, the ion channel conducting IKr, hERG channel, is not only permeable to K+ ions but also to Cs+ ions when present in equimolar concentrations inside and outside of the cell. Methods: In this study, IhERG was measured from Chinese hamster ovary (CHO)-hERG cells and hiPSC-CM using either Cs+ or K+ as the charge carrier. Equimolar Cs+ has been used in the literature in manual patch-clamp experiments, and here, we apply this approach using automated patch-clamp systems. Four different (pre)clinical drugs were tested to compare their effects on Cs+- and K+-based currents. Results: Using equimolar Cs+ solutions gave rise to approximately ten-fold larger hERG conductances. Comparison of Cs+- and K+-mediated currents upon application of dofetilide, desipramine, moxifloxacin, or LUF7244 revealed many similarities in inhibition or activation properties of the drugs studied. Using equimolar Cs+ solutions gave rise to approximately ten-fold larger hERG conductances. In hiPSC-CM, the Cs+-based conductance is larger compared to the known K+-based conductance, and the Cs+ hERG conductance can be inhibited similarly to the K+-based conductance. Conclusion: Using equimolar Cs+ instead of K+ for IhERG measurements in an automated patch-clamp system gives rise to a new method by which, for example, quick scans can be performed on effects of drugs on hERG currents. This application is specifically relevant when such experiments are performed using cells which express small IKr current densities in combination with small membrane capacitances.
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Affiliation(s)
- Meye Bloothooft
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Bente Verbruggen
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Fitzwilliam Seibertz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, Göttingen, Germany
- Nanion Technologies GmbH, Munich, Germany
| | - Marcel A. G. van der Heyden
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, Göttingen, Germany
| | - Teun P. de Boer
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
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10
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Zhang W, Wang F, Yin L, Tang Y, Wang X, Huang C. Cadherin-5 facilitated the differentiation of human induced pluripotent stem cells into sinoatrial node-like pacemaker cells by regulating β-catenin. J Cell Physiol 2024; 239:212-226. [PMID: 38149479 DOI: 10.1002/jcp.31161] [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: 09/13/2023] [Revised: 10/16/2023] [Accepted: 11/10/2023] [Indexed: 12/28/2023]
Abstract
Our study was conducted to investigate whether cadherin-5 (CDH5), a vascular endothelial cell adhesion glycoprotein, could facilitate the differentiation of human induced pluripotent stem cells (hiPSCs) into sinoatrial node-like pacemaker cells (SANLPCs), following previous findings of silk-fibroin hydrogel-induced direct conversion of quiescent cardiomyocytes into pacemaker cells in rats through the activation of CDH5. In this study, the differentiating hiPSCs were treated with CDH5 (40 ng/mL) between Day 5 and 7 during cardiomyocytes differentiation. The findings in the present study demonstrated that CDH5 stimulated the expression of pacemaker-specific markers while suppressing markers associated with working cardiomyocytes, resulting in an increased proportion of SANLPCs among hiPSCs-derived cardiomyocytes (hiPSC-CMs) population. Moreover, CDH5 induced typical electrophysiological characteristics resembling cardiac pacemaker cells in hiPSC-CMs. Further mechanistic investigations revealed that the enriched differentiation of hiPSCs into SANLPCs induced by CDH5 was partially reversed by iCRT14, an inhibitor of β-catenin. Therefore, based on the aforementioned findings, it could be inferred that the regulation of β-catenin by CDH5 played a crucial role in promoting the enriched differentiation of hiPSCs into SANLPCs, which presents a novel avenue for the construction of biological pacemakers in forthcoming research.
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Affiliation(s)
- Wei Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Fengyuan Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Lin Yin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yanhong Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Xi Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Congxin Huang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
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11
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Luo Y, Chen Y, Ge L, Zhou G, Chen Y, Zhu D. Competing endogenous RNA network analysis of Turner syndrome patient-specific iPSC-derived cardiomyocytes reveals dysregulation of autosomal heart development genes by altered dosages of X-inactivation escaping non-coding RNAs. Stem Cell Res Ther 2023; 14:376. [PMID: 38124119 PMCID: PMC10734062 DOI: 10.1186/s13287-023-03601-3] [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: 08/05/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND A 45,X monosomy (Turner syndrome, TS) is the only chromosome haploinsufficiency compatible with life. Nevertheless, the surviving TS patients still suffer from increased morbidity and mortality, with around one-third of them subjecting to heart abnormalities. How loss of one X chromosome drive these conditions remains largely unknown. METHODS Here, we have generated cardiomyocytes (CMs) from wild-type and TS patient-specific induced pluripotent stem cells and profiled the mRNA, lncRNA and circRNA expression in these cells. RESULTS We observed lower beating frequencies and higher mitochondrial DNA copies per nucleus in TS-CMs. Moreover, we have identified a global transcriptome dysregulation of both coding and non-coding RNAs in TS-CMs. The differentially expressed mRNAs were enriched of heart development genes. Further competing endogenous RNA network analysis revealed putative regulatory circuit of autosomal genes relevant with mitochondrial respiratory chain and heart development, such as COQ10A, RARB and WNT2, mediated by X-inactivation escaping lnc/circRNAs, such as lnc-KDM5C-4:1, hsa_circ_0090421 and hsa_circ_0090392. The aberrant expressions of these genes in TS-CMs were verified by qPCR. Further knockdown of lnc-KDM5C-4:1 in wild-type CMs exhibited significantly reduced beating frequencies. CONCLUSIONS Our study has revealed a genomewide ripple effect of X chromosome halpoinsufficiency at post-transcriptional level and provided insights into the molecular mechanisms underlying heart abnormalities in TS patients.
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Affiliation(s)
- Yumei Luo
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
- Biologics Test and Evaluation Center, Guangzhou Laboratory, Guangzhou, 510005, China.
| | - Yapei Chen
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Lingxia Ge
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Guanqing Zhou
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Yaoyong Chen
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Detu Zhu
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
- Biologics Test and Evaluation Center, Guangzhou Laboratory, Guangzhou, 510005, China.
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12
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Seibertz F, Rubio T, Springer R, Popp F, Ritter M, Liutkute A, Bartelt L, Stelzer L, Haghighi F, Pietras J, Windel H, Pedrosa NDI, Rapedius M, Doering Y, Solano R, Hindmarsh R, Shi R, Tiburcy M, Bruegmann T, Kutschka I, Streckfuss-Bömeke K, Kensah G, Cyganek L, Zimmermann WH, Voigt N. Atrial fibrillation-associated electrical remodelling in human induced pluripotent stem cell-derived atrial cardiomyocytes: a novel pathway for antiarrhythmic therapy development. Cardiovasc Res 2023; 119:2623-2637. [PMID: 37677054 PMCID: PMC10730244 DOI: 10.1093/cvr/cvad143] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 07/18/2023] [Accepted: 08/03/2023] [Indexed: 09/09/2023] Open
Abstract
AIMS Atrial fibrillation (AF) is associated with tachycardia-induced cellular electrophysiology alterations which promote AF chronification and treatment resistance. Development of novel antiarrhythmic therapies is hampered by the absence of scalable experimental human models that reflect AF-associated electrical remodelling. Therefore, we aimed to assess if AF-associated remodelling of cellular electrophysiology can be simulated in human atrial-like cardiomyocytes derived from induced pluripotent stem cells in the presence of retinoic acid (iPSC-aCM), and atrial-engineered human myocardium (aEHM) under short term (24 h) and chronic (7 days) tachypacing (TP). METHODS AND RESULTS First, 24-h electrical pacing at 3 Hz was used to investigate whether AF-associated remodelling in iPSC-aCM and aEHM would ensue. Compared to controls (24 h, 1 Hz pacing) TP-stimulated iPSC-aCM presented classical hallmarks of AF-associated remodelling: (i) decreased L-type Ca2+ current (ICa,L) and (ii) impaired activation of acetylcholine-activated inward-rectifier K+ current (IK,ACh). This resulted in action potential shortening and an absent response to the M-receptor agonist carbachol in both iPSC-aCM and aEHM subjected to TP. Accordingly, mRNA expression of the channel-subunit Kir3.4 was reduced. Selective IK,ACh blockade with tertiapin reduced basal inward-rectifier K+ current only in iPSC-aCM subjected to TP, thereby unmasking an agonist-independent constitutively active IK,ACh. To allow for long-term TP, we developed iPSC-aCM and aEHM expressing the light-gated ion-channel f-Chrimson. The same hallmarks of AF-associated remodelling were observed after optical-TP. In addition, continuous TP (7 days) led to (i) increased amplitude of inward-rectifier K+ current (IK1), (ii) hyperpolarization of the resting membrane potential, (iii) increased action potential-amplitude and upstroke velocity as well as (iv) reversibly impaired contractile function in aEHM. CONCLUSIONS Classical hallmarks of AF-associated remodelling were mimicked through TP of iPSC-aCM and aEHM. The use of the ultrafast f-Chrimson depolarizing ion channel allowed us to model the time-dependence of AF-associated remodelling in vitro for the first time. The observation of electrical remodelling with associated reversible contractile dysfunction offers a novel platform for human-centric discovery of antiarrhythmic therapies.
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Affiliation(s)
- Fitzwilliam Seibertz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
| | - Tony Rubio
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Robin Springer
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Fiona Popp
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Melanie Ritter
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Aiste Liutkute
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Lena Bartelt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Lea Stelzer
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Fereshteh Haghighi
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Jan Pietras
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Hendrik Windel
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Núria Díaz i Pedrosa
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | | | - Yannic Doering
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Richard Solano
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Robin Hindmarsh
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Germany
| | - Runzhu Shi
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Institute for Cardiovascular Physiology, University Medical Center Göttingen, Göttingen, Germany
| | - Malte Tiburcy
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Tobias Bruegmann
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
- Institute for Cardiovascular Physiology, University Medical Center Göttingen, Göttingen, Germany
| | - Ingo Kutschka
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Katrin Streckfuss-Bömeke
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Germany
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - George Kensah
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Lukas Cyganek
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Germany
| | - Wolfram H Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Göttingen, Germany
- Campus-Institute Data Science (CIDAS), University of Göttingen, Göttingen, Germany
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
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13
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Liew LC, Poh BM, An O, Ho BX, Lim CYY, Pang JKS, Beh LY, Yang HH, Soh BS. JAK2 as a surface marker for enrichment of human pluripotent stem cells-derived ventricular cardiomyocytes. Stem Cell Res Ther 2023; 14:367. [PMID: 38093391 PMCID: PMC10720068 DOI: 10.1186/s13287-023-03610-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Human pluripotent stem cell (hPSC)-derived cardiomyocytes (CMs) hold great promise for cardiac disease modelling, drug discovery and regenerative medicine. Despite the advancement in various differentiation protocols, the heterogeneity of the generated population composed of diverse cardiac subtypes poses a significant challenge to their practical applications. Mixed populations of cardiac subtypes can compromise disease modelling and drug discovery, while transplanting them may lead to undesired arrhythmias as they may not integrate and synchronize with the host tissue's contractility. It is therefore crucial to identify cell surface markers that could enable high purity of ventricular CMs for subsequent applications. METHODS By exploiting the fact that immature CMs expressing myosin light chain 2A (MLC2A) will gradually express myosin light chain 2 V (MLC2V) protein as they mature towards ventricular fate, we isolated signal regulatory protein alpha (SIRPA)-positive CMs expressing intracellular MLC2A or MLC2V using MARIS (method for analysing RNA following intracellular sorting). Subsequently, RNA sequencing analysis was performed to examine the gene expression profile of MLC2A + and MLC2V + sorted CMs. We identified genes that were significantly up-regulated in MLC2V + samples to be potential surface marker candidates for ventricular specification. To validate these surface markers, we performed immunostaining and western blot analysis to measure MLC2A and MLC2V protein expressions in SIRPA + CMs that were either positive or negative for the putative surface markers, JAK2 (Janus kinase 2) or CD200. We then characterized the electrophysiological properties of surface marker-sorted CMs, using fluo-4 AM, a green-fluorescent calcium indicator, to measure the cellular calcium transient at the single cell level. For functional validation, we investigated the response of the surface marker-sorted CMs to vernakalant, an atrial-selective anti-arrhythmic agent. RESULTS In this study, while JAK2 and CD200 were identified as potential surface markers for the purification of ventricular-like CMs, the SIRPA+/JAK2+ population showed a higher percentage of MLC2V-expressing cells (~ 90%) compared to SIRPA+/CD200+ population (~ 75%). SIRPA+/JAK2+ sorted CMs exhibited ventricular-like electrophysiological properties, including slower beating rate, slower calcium depolarization and longer calcium repolarization duration. Importantly, vernakalant had limited to no significant effect on the calcium repolarization duration of SIRPA+/JAK2+ population, indicating their enrichment for ventricular-like CMs. CONCLUSION Our study lays the groundwork for the identification of cardiac subtype surface markers that allow purification of cardiomyocyte sub-populations. Our findings suggest that JAK2 can be employed as a cell surface marker for enrichment of hPSC-derived ventricular-like CMs.
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Affiliation(s)
- Lee Chuen Liew
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore
| | - Boon Min Poh
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore
| | - Omer An
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Republic of Singapore
| | - Beatrice Xuan Ho
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore
| | - Christina Ying Yan Lim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore
| | - Jeremy Kah Sheng Pang
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore
| | - Leslie Y Beh
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore
| | - Henry He Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Republic of Singapore
| | - Boon-Seng Soh
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore.
- Department of Biological Sciences, National University of Singapore, Singapore, 117543, Republic of Singapore.
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Liu S, Fang C, Zhong C, Li J, Xiao Q. Recent advances in pluripotent stem cell-derived cardiac organoids and heart-on-chip applications for studying anti-cancer drug-induced cardiotoxicity. Cell Biol Toxicol 2023; 39:2527-2549. [PMID: 37889357 DOI: 10.1007/s10565-023-09835-4] [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: 07/14/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
Cardiovascular disease (CVD) caused by anti-cancer drug-induced cardiotoxicity is now the second leading cause of mortality among cancer survivors. It is necessary to establish efficient in vitro models for early predicting the potential cardiotoxicity of anti-cancer drugs, as well as for screening drugs that would alleviate cardiotoxicity during and post treatment. Human induced pluripotent stem cells (hiPSCs) have opened up new avenues in cardio-oncology. With the breakthrough of tissue engineering technology, a variety of hiPSC-derived cardiac microtissues or organoids have been recently reported, which have shown enormous potential in studying cardiotoxicity. Moreover, using hiPSC-derived heart-on-chip for studying cardiotoxicity has provided novel insights into the underlying mechanisms. Herein, we summarize different types of anti-cancer drug-induced cardiotoxicities and present an extensive overview on the applications of hiPSC-derived cardiac microtissues, cardiac organoids, and heart-on-chips in cardiotoxicity. Finally, we highlight clinical and translational challenges around hiPSC-derived cardiac microtissues/organoids/heart-on chips and their applications in anti-cancer drug-induced cardiotoxicity. • Anti-cancer drug-induced cardiotoxicities represent pressing challenges for cancer treatments, and cardiovascular disease is the second leading cause of mortality among cancer survivors. • Newly reported in vitro models such as hiPSC-derived cardiac microtissues/organoids/chips show enormous potential for studying cardio-oncology. • Emerging evidence supports that hiPSC-derived cardiac organoids and heart-on-chip are promising in vitro platforms for predicting and minimizing anti-cancer drug-induced cardiotoxicity.
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Affiliation(s)
- Silin Liu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
- Centre for Clinical Pharmacology and Precision Medicine, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Heart Centre, Charterhouse Square, London, EC1M 6BQ, UK
- Guangdong Provincial Clinical Research Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Chongkai Fang
- Centre for Clinical Pharmacology and Precision Medicine, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Heart Centre, Charterhouse Square, London, EC1M 6BQ, UK
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Chong Zhong
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
- Guangdong Provincial Clinical Research Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Jing Li
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
- Guangdong Provincial Clinical Research Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
- Faculty of Biological Sciences, University of Leeds, Leeds, UK.
| | - Qingzhong Xiao
- Centre for Clinical Pharmacology and Precision Medicine, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Heart Centre, Charterhouse Square, London, EC1M 6BQ, UK.
- Key Laboratory of Cardiovascular Diseases, School of Basic Medical Sciences, Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.
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15
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Chapotte-Baldacci CA, Pierre M, Djemai M, Pouliot V, Chahine M. Biophysical properties of Na V1.5 channels from atrial-like and ventricular-like cardiomyocytes derived from human induced pluripotent stem cells. Sci Rep 2023; 13:20685. [PMID: 38001331 PMCID: PMC10673932 DOI: 10.1038/s41598-023-47310-6] [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: 07/14/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
Generating atrial-like cardiomyocytes derived from human induced pluripotent stem cells (hiPSCs) is crucial for modeling and treating atrial-related diseases, such as atrial arrythmias including atrial fibrillations. However, it is essential to obtain a comprehensive understanding of the electrophysiological properties of these cells. The objective of the present study was to investigate the molecular, electrical, and biophysical properties of several ion channels, especially NaV1.5 channels, in atrial hiPSC cardiomyocytes. Atrial cardiomyocytes were obtained by the differentiation of hiPSCs treated with retinoic acid (RA). The quality of the atrial specification was assessed by qPCR, immunocytofluorescence, and western blotting. The electrophysiological properties of action potentials (APs), Ca2+ dynamics, K+ and Na+ currents were investigated using patch-clamp and optical mapping approaches. We evaluated mRNA transcript and protein expressions to show that atrial cardiomyocytes expressed higher atrial- and sinoatrial-specific markers (MYL7, CACNA1D) and lower ventricular-specific markers (MYL2, CACNA1C, GJA1) than ventricular cardiomyocytes. The amplitude, duration, and steady-state phase of APs in atrial cardiomyocytes decreased, and had a shape similar to that of mature atrial cardiomyocytes. Interestingly, NaV1.5 channels in atrial cardiomyocytes exhibited lower mRNA transcripts and protein expression, which could explain the lower current densities recorded by patch-clamp. Moreover, Na+ currents exhibited differences in activation and inactivation parameters. These differences could be explained by an increase in SCN2B regulatory subunit expression and a decrease in SCN1B and SCN4B regulatory subunit expressions. Our results show that a RA treatment made it possible to obtain atrial cardiomyocytes and investigate differences in NaV1.5 channel properties between ventricular- and atrial-like cells.
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Affiliation(s)
- Charles-Albert Chapotte-Baldacci
- Department of Medicine, Laval University, Quebec City, QC, Canada
- CERVO Brain Research Centre, 2601, chemin de la Canardière, Quebec City, QC, G1J 2G3, Canada
| | - Marion Pierre
- Department of Medicine, Laval University, Quebec City, QC, Canada
- CERVO Brain Research Centre, 2601, chemin de la Canardière, Quebec City, QC, G1J 2G3, Canada
| | - Mohammed Djemai
- Department of Medicine, Laval University, Quebec City, QC, Canada
- CERVO Brain Research Centre, 2601, chemin de la Canardière, Quebec City, QC, G1J 2G3, Canada
| | - Valérie Pouliot
- CERVO Brain Research Centre, 2601, chemin de la Canardière, Quebec City, QC, G1J 2G3, Canada
| | - Mohamed Chahine
- CERVO Brain Research Centre, 2601, chemin de la Canardière, Quebec City, QC, G1J 2G3, Canada.
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16
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Schulz C, Sönmez M, Krause J, Schwedhelm E, Bangfen P, Alihodzic D, Hansen A, Eschenhagen T, Christ T. A critical role of retinoic acid concentration for the induction of a fully human-like atrial action potential phenotype in hiPSC-CM. Stem Cell Reports 2023; 18:2096-2107. [PMID: 37922915 PMCID: PMC10679650 DOI: 10.1016/j.stemcr.2023.10.006] [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: 07/27/2022] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Retinoic acid (RA) induces an atrial phenotype in human induced pluripotent stem cells (hiPSCs), but expression of atrium-selective currents such as the ultrarapid (IKur) and acetylcholine-stimulated K+ current is variable and less than in the adult human atrium. We suspected methodological issues and systematically investigated the concentration dependency of RA. RA treatment increased IKur concentration dependently from 1.1 ± 0.54 pA/pF (0 RA) to 3.8 ± 1.1, 5.8 ± 2.5, and 12.2 ± 4.3 at 0.01, 0.1, and 1 μM, respectively. Only 1 μM RA induced enough IKur to fully reproduce human atrial action potential (AP) shape and a robust shortening of APs upon carbachol. We found that sterile filtration caused substantial loss of RA. We conclude that 1 μM RA seems to be necessary and sufficient to induce a full atrial AP shape in hiPSC-CM in EHT format. RA concentrations are prone to methodological issues and may profoundly impact the success of atrial differentiation.
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Affiliation(s)
- Carl Schulz
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Muhammed Sönmez
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Julia Krause
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany; Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany
| | - Edzard Schwedhelm
- German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany; Institute of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Pan Bangfen
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Dzenefa Alihodzic
- Hospital Pharmacy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Arne Hansen
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Thomas Eschenhagen
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany.
| | - Torsten Christ
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany.
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17
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Meshrkey F, Scheulin KM, Littlejohn CM, Stabach J, Saikia B, Thorat V, Huang Y, LaFramboise T, Lesnefsky EJ, Rao RR, West FD, Iyer S. Induced pluripotent stem cells derived from patients carrying mitochondrial mutations exhibit altered bioenergetics and aberrant differentiation potential. Stem Cell Res Ther 2023; 14:320. [PMID: 37936209 PMCID: PMC10631039 DOI: 10.1186/s13287-023-03546-7] [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: 05/17/2023] [Accepted: 10/25/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Human mitochondrial DNA mutations are associated with common to rare mitochondrial disorders, which are multisystemic with complex clinical pathologies. The pathologies of these diseases are poorly understood and have no FDA-approved treatments leading to symptom management. Leigh syndrome (LS) is a pediatric mitochondrial disorder that affects the central nervous system during early development and causes death in infancy. Since there are no adequate models for understanding the rapid fatality associated with LS, human-induced pluripotent stem cell (hiPSC) technology has been recognized as a useful approach to generate patient-specific stem cells for disease modeling and understanding the origins of the phenotype. METHODS hiPSCs were generated from control BJ and four disease fibroblast lines using a cocktail of non-modified reprogramming and immune evasion mRNAs and microRNAs. Expression of hiPSC-associated intracellular and cell surface markers was identified by immunofluorescence and flow cytometry. Karyotyping of hiPSCs was performed with cytogenetic analysis. Sanger and next-generation sequencing were used to detect and quantify the mutation in all hiPSCs. The mitochondrial respiration ability and glycolytic function were measured by the Seahorse Bioscience XFe96 extracellular flux analyzer. RESULTS Reprogrammed hiPSCs expressed pluripotent stem cell markers including transcription factors POU5F1, NANOG and SOX2 and cell surface markers SSEA4, TRA-1-60 and TRA-1-81 at the protein level. Sanger sequencing analysis confirmed the presence of mutations in all reprogrammed hiPSCs. Next-generation sequencing demonstrated the variable presence of mutant mtDNA in reprogrammed hiPSCs. Cytogenetic analyses confirmed the presence of normal karyotype in all reprogrammed hiPSCs. Patient-derived hiPSCs demonstrated decreased maximal mitochondrial respiration, while mitochondrial ATP production was not significantly different between the control and disease hiPSCs. In line with low maximal respiration, the spare respiratory capacity was lower in all the disease hiPSCs. The hiPSCs also demonstrated neural and cardiac differentiation potential. CONCLUSION Overall, the hiPSCs exhibited variable mitochondrial dysfunction that may alter their differentiation potential and provide key insights into clinically relevant developmental perturbations.
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Affiliation(s)
- Fibi Meshrkey
- Department of Biological Sciences, J. William Fulbright College of Arts and Sciences, University of Arkansas, Science and Engineering 601, Fayetteville, AR, 72701, USA
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR, USA
- Department of Histology and Cell Biology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Kelly M Scheulin
- Regenerative Bioscience Center, University of Georgia, Athens, GA, USA
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA
- Neuroscience Program, Biomedical and Health Sciences Institute, University of Georgia, Athens, GA, USA
| | - Christopher M Littlejohn
- Regenerative Bioscience Center, University of Georgia, Athens, GA, USA
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA
| | - Joshua Stabach
- Department of Biological Sciences, J. William Fulbright College of Arts and Sciences, University of Arkansas, Science and Engineering 601, Fayetteville, AR, 72701, USA
| | - Bibhuti Saikia
- Department of Biological Sciences, J. William Fulbright College of Arts and Sciences, University of Arkansas, Science and Engineering 601, Fayetteville, AR, 72701, USA
| | - Vedant Thorat
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Yimin Huang
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Thomas LaFramboise
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Edward J Lesnefsky
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, VA, USA
- Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, VA, USA
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA, USA
- Division of Cardiology, Department of Internal Medicine, Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Raj R Rao
- Department of Biomedical Engineering, College of Engineering, University of Arkansas, Fayetteville, AR, USA
| | - Franklin D West
- Regenerative Bioscience Center, University of Georgia, Athens, GA, USA
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA
- Neuroscience Program, Biomedical and Health Sciences Institute, University of Georgia, Athens, GA, USA
| | - Shilpa Iyer
- Department of Biological Sciences, J. William Fulbright College of Arts and Sciences, University of Arkansas, Science and Engineering 601, Fayetteville, AR, 72701, USA.
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR, USA.
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18
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Kayser A, Dittmann S, Šarić T, Mearini G, Verkerk AO, Schulze-Bahr E. The W101C KCNJ5 Mutation Induces Slower Pacing by Constitutively Active GIRK Channels in hiPSC-Derived Cardiomyocytes. Int J Mol Sci 2023; 24:15290. [PMID: 37894977 PMCID: PMC10607318 DOI: 10.3390/ijms242015290] [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: 09/18/2023] [Revised: 10/13/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023] Open
Abstract
Mutations in the KCNJ5 gene, encoding one of the major subunits of cardiac G-protein-gated inwardly rectifying K+ (GIRK) channels, have been recently linked to inherited forms of sinus node dysfunction. Here, the pathogenic mechanism of the W101C KCNJ5 mutation underlying sinus bradycardia in a patient-derived cellular disease model of sinus node dysfunction (SND) was investigated. A human-induced pluripotent stem cell (hiPSCs) line of a mutation carrier was generated, and CRISPR/Cas9-based gene targeting was used to correct the familial mutation as a control line. Both cell lines were further differentiated into cardiomyocytes (hiPSC-CMs) that robustly expressed GIRK channels which underly the acetylcholine-regulated K+ current (IK,ACh). hiPSC-CMs with the W101C KCNJ5 mutation (hiPSCW101C-CM) had a constitutively active IK,ACh under baseline conditions; the application of carbachol was able to increase IK,ACh, further indicating that not all available cardiac GIRK channels were open at baseline. Additionally, hiPSCW101C-CM had a more negative maximal diastolic potential (MDP) and a slower pacing frequency confirming the bradycardic phenotype. Of note, the blockade of the constitutively active GIRK channel with XAF-1407 rescued the phenotype. These results provide further mechanistic insights and may pave the way for the treatment of SND patients with GIRK channel dysfunction.
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Affiliation(s)
- Anne Kayser
- Institute for Genetics of Heart Diseases (IfGH), University Hospital Münster, 48149 Münster, Germany (S.D.); (E.S.-B.)
| | - Sven Dittmann
- Institute for Genetics of Heart Diseases (IfGH), University Hospital Münster, 48149 Münster, Germany (S.D.); (E.S.-B.)
| | - Tomo Šarić
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany;
| | - Giulia Mearini
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Arie O. Verkerk
- Department of Medical Biology, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Experimental Cardiology, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Eric Schulze-Bahr
- Institute for Genetics of Heart Diseases (IfGH), University Hospital Münster, 48149 Münster, Germany (S.D.); (E.S.-B.)
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19
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Kang J, Mun D, Chun Y, Park D, Kim H, Yun N, Joung B. Engineered small extracellular vesicle-mediated NOX4 siRNA delivery for targeted therapy of cardiac hypertrophy. J Extracell Vesicles 2023; 12:e12371. [PMID: 37795828 PMCID: PMC10552075 DOI: 10.1002/jev2.12371] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 09/18/2023] [Accepted: 09/27/2023] [Indexed: 10/06/2023] Open
Abstract
Small-interfering RNA (siRNA) therapy is considered a powerful therapeutic strategy for treating cardiac hypertrophy, an important risk factor for subsequent cardiac morbidity and mortality. However, the lack of safe and efficient in vivo delivery of siRNAs is a major challenge for broadening its clinical applications. Small extracellular vesicles (sEVs) are a promising delivery system for siRNAs but have limited cell/tissue-specific targeting ability. In this study, a new generation of heart-targeting sEVs (CEVs) has been developed by conjugating cardiac-targeting peptide (CTP) to human peripheral blood-derived sEVs (PB-EVs), using a simple, rapid and scalable method based on bio-orthogonal copper-free click chemistry. The experimental results show that CEVs have typical sEVs properties and excellent heart-targeting ability. Furthermore, to treat cardiac hypertrophy, CEVs are loaded with NADPH Oxidase 4 (NOX4) siRNA (siNOX4). Consequently, CEVs@siNOX4 treatment enhances the in vitro anti-hypertrophic effects by CEVs with siRNA protection and heart-targeting ability. In addition, the intravenous injection of CEVs@siNOX4 into angiotensin II (Ang II)-treated mice significantly improves cardiac function and reduces fibrosis and cardiomyocyte cross-sectional area, with limited side effects. In conclusion, the utilization of CEVs represents an efficient strategy for heart-targeted delivery of therapeutic siRNAs and holds great promise for the treatment of cardiac hypertrophy.
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Affiliation(s)
- Ji‐Young Kang
- Division of Cardiology, Department of Internal MedicineYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
| | - Dasom Mun
- Division of Cardiology, Department of Internal MedicineYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
| | - Yumin Chun
- Division of Cardiology, Department of Internal MedicineYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
| | - Da‐Seul Park
- Division of Cardiology, Department of Internal MedicineYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
| | - Hyoeun Kim
- Department of Biochemistry and Molecular BiologyYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
| | - Nuri Yun
- GNTPharma Science and Technology Center for Health, Giheung‐guYongin‐siIncheonRepublic of Korea
| | - Boyoung Joung
- Division of Cardiology, Department of Internal MedicineYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
- Graduate School of Medical Science, Brain Korea 21 ProjectYonsei University College of MedicineSeodaemun‐guSeoulRepublic of Korea
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20
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Bernava G, Iop L. Advances in the design, generation, and application of tissue-engineered myocardial equivalents. Front Bioeng Biotechnol 2023; 11:1247572. [PMID: 37811368 PMCID: PMC10559975 DOI: 10.3389/fbioe.2023.1247572] [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: 06/26/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
Due to the limited regenerative ability of cardiomyocytes, the disabling irreversible condition of myocardial failure can only be treated with conservative and temporary therapeutic approaches, not able to repair the damage directly, or with organ transplantation. Among the regenerative strategies, intramyocardial cell injection or intravascular cell infusion should attenuate damage to the myocardium and reduce the risk of heart failure. However, these cell delivery-based therapies suffer from significant drawbacks and have a low success rate. Indeed, cardiac tissue engineering efforts are directed to repair, replace, and regenerate native myocardial tissue function. In a regenerative strategy, biomaterials and biomimetic stimuli play a key role in promoting cell adhesion, proliferation, differentiation, and neo-tissue formation. Thus, appropriate biochemical and biophysical cues should be combined with scaffolds emulating extracellular matrix in order to support cell growth and prompt favorable cardiac microenvironment and tissue regeneration. In this review, we provide an overview of recent developments that occurred in the biomimetic design and fabrication of cardiac scaffolds and patches. Furthermore, we sift in vitro and in situ strategies in several preclinical and clinical applications. Finally, we evaluate the possible use of bioengineered cardiac tissue equivalents as in vitro models for disease studies and drug tests.
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Affiliation(s)
| | - Laura Iop
- Department of Cardiac Thoracic Vascular Sciences and Public Health, Padua Medical School, University of Padua, Padua, Italy
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21
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Engel JL, Zhang X, Lu DR, Vila OF, Arias V, Lee J, Hale C, Hsu YH, Li CM, Wu RS, Vedantham V, Ang YS. Single Cell Multi-Omics of an iPSC Model of Human Sinoatrial Node Development Reveals Genetic Determinants of Heart Rate and Arrhythmia Susceptibility. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.01.547335. [PMID: 37425707 PMCID: PMC10327193 DOI: 10.1101/2023.07.01.547335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Cellular heterogeneity within the sinoatrial node (SAN) is functionally important but has been difficult to model in vitro , presenting a major obstacle to studies of heart rate regulation and arrhythmias. Here we describe a scalable method to derive sinoatrial node pacemaker cardiomyocytes (PCs) from human induced pluripotent stem cells that recapitulates differentiation into distinct PC subtypes, including SAN Head, SAN Tail, transitional zone cells, and sinus venosus myocardium. Single cell (sc) RNA-sequencing, sc-ATAC-sequencing, and trajectory analyses were used to define epigenetic and transcriptomic signatures of each cell type, and to identify novel transcriptional pathways important for PC subtype differentiation. Integration of our multi-omics datasets with genome wide association studies uncovered cell type-specific regulatory elements that associated with heart rate regulation and susceptibility to atrial fibrillation. Taken together, these datasets validate a novel, robust, and realistic in vitro platform that will enable deeper mechanistic exploration of human cardiac automaticity and arrhythmia.
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22
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Reyat JS, di Maio A, Grygielska B, Pike J, Kemble S, Rodriguez-Romero A, Simoglou Karali C, Croft AP, Psaila B, Simões F, Rayes J, Khan AO. Modelling the pathology and treatment of cardiac fibrosis in vascularised atrial and ventricular cardiac microtissues. Front Cardiovasc Med 2023; 10:1156759. [PMID: 37727305 PMCID: PMC10506403 DOI: 10.3389/fcvm.2023.1156759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 08/09/2023] [Indexed: 09/21/2023] Open
Abstract
Introduction Recent advances in human cardiac 3D approaches have yielded progressively more complex and physiologically relevant culture systems. However, their application in the study of complex pathological processes, such as inflammation and fibrosis, and their utility as models for drug development have been thus far limited. Methods In this work, we report the development of chamber-specific, vascularised human induced pluripotent stem cell-derived cardiac microtissues, which allow for the multi-parametric assessment of cardiac fibrosis. Results We demonstrate the generation of a robust vascular system in the microtissues composed of endothelial cells, fibroblasts and atrial or ventricular cardiomyocytes that exhibit gene expression signatures, architectural, and electrophysiological resemblance to in vivo-derived anatomical cardiac tissues. Following pro-fibrotic stimulation using TGFβ, cardiac microtissues recapitulated hallmarks of cardiac fibrosis, including myofibroblast activation and collagen deposition. A study of Ca2+ dynamics in fibrotic microtissues using optical mapping revealed prolonged Ca2+ decay, reflecting cardiomyocyte dysfunction, which is linked to the severity of fibrosis. This phenotype could be reversed by TGFβ receptor inhibition or by using the BET bromodomain inhibitor, JQ1. Discussion In conclusion, we present a novel methodology for the generation of chamber-specific cardiac microtissues that is highly scalable and allows for the multi-parametric assessment of cardiac remodelling and pharmacological screening.
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Affiliation(s)
- Jasmeet S. Reyat
- College of Medical and Dental Sciences, Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
- Department of Physiology, Anatomy and Genetics, Institute of Developmental and Regenerative Medicine, University of Oxford, Oxford, United Kingdom
| | - Alessandro di Maio
- The Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham and University of Nottingham, Birmingham, United Kingdom
| | - Beata Grygielska
- College of Medical and Dental Sciences, Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Jeremy Pike
- College of Medical and Dental Sciences, Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
- The Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham and University of Nottingham, Birmingham, United Kingdom
| | - Samuel Kemble
- Rheumatology Research Group, College of Medical and Dental Sciences, Institute of Inflammation and Ageing, University of Birmingham, Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Antonio Rodriguez-Romero
- Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Christina Simoglou Karali
- Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Adam P. Croft
- Rheumatology Research Group, College of Medical and Dental Sciences, Institute of Inflammation and Ageing, University of Birmingham, Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Bethan Psaila
- Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Cancer and Haematology Centre, Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Filipa Simões
- Department of Physiology, Anatomy and Genetics, Institute of Developmental and Regenerative Medicine, University of Oxford, Oxford, United Kingdom
| | - Julie Rayes
- College of Medical and Dental Sciences, Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
- The Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham and University of Nottingham, Birmingham, United Kingdom
| | - Abdullah O. Khan
- College of Medical and Dental Sciences, Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
- Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
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23
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Djemai M, Cupelli M, Boutjdir M, Chahine M. Optical Mapping of Cardiomyocytes in Monolayer Derived from Induced Pluripotent Stem Cells. Cells 2023; 12:2168. [PMID: 37681899 PMCID: PMC10487143 DOI: 10.3390/cells12172168] [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: 07/18/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023] Open
Abstract
Optical mapping is a powerful imaging technique widely adopted to measure membrane potential changes and intracellular Ca2+ variations in excitable tissues using voltage-sensitive dyes and Ca2+ indicators, respectively. This powerful tool has rapidly become indispensable in the field of cardiac electrophysiology for studying depolarization wave propagation, estimating the conduction velocity of electrical impulses, and measuring Ca2+ dynamics in cardiac cells and tissues. In addition, mapping these electrophysiological parameters is important for understanding cardiac arrhythmia mechanisms. In this review, we delve into the fundamentals of cardiac optical mapping technology and its applications when applied to hiPSC-derived cardiomyocytes and discuss related advantages and challenges. We also provide a detailed description of the processing and analysis of optical mapping data, which is a crucial step in the study of cardiac diseases and arrhythmia mechanisms for extracting and comparing relevant electrophysiological parameters.
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Affiliation(s)
- Mohammed Djemai
- CERVO Brain Research Center, Institut Universitaire en Santé Mentale de Québec, Quebec City, QC G1J 2G3, Canada
| | - Michael Cupelli
- Cardiovascular Research Program, VA New York Harbor Healthcare System, New York, NY 11209, USA
- Department of Medicine, Cell Biology and Pharmacology, State University of New York Downstate Health Sciences University, New York, NY 11203, USA
| | - Mohamed Boutjdir
- Cardiovascular Research Program, VA New York Harbor Healthcare System, New York, NY 11209, USA
- Department of Medicine, Cell Biology and Pharmacology, State University of New York Downstate Health Sciences University, New York, NY 11203, USA
- Department of Medicine, NYU School of Medicine, New York, NY 10016, USA
| | - Mohamed Chahine
- CERVO Brain Research Center, Institut Universitaire en Santé Mentale de Québec, Quebec City, QC G1J 2G3, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
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24
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Illi B, Nasi S. Myc beyond Cancer: Regulation of Mammalian Tissue Regeneration. PATHOPHYSIOLOGY 2023; 30:346-365. [PMID: 37606389 PMCID: PMC10443299 DOI: 10.3390/pathophysiology30030027] [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: 07/05/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023] Open
Abstract
Myc is one of the most well-known oncogenes driving tumorigenesis in a wide variety of tissues. From the brain to blood, its deregulation derails physiological pathways that grant the correct functioning of the cell. Its action is carried out at the gene expression level, where Myc governs basically every aspect of transcription. Indeed, in addition to its role as a canonical, chromatin-bound transcription factor, Myc rules RNA polymerase II (RNAPII) transcriptional pause-release, elongation and termination and mRNA capping. For this reason, it is evident that minimal perturbations of Myc function mirror malignant cell behavior and, consistently, a large body of literature mainly focuses on Myc malfunctioning. In healthy cells, Myc controls molecular mechanisms involved in pivotal functions, such as cell cycle (and proliferation thereof), apoptosis, metabolism and cell size, angiogenesis, differentiation and stem cell self-renewal. In this latter regard, Myc has been found to also regulate tissue regeneration, a hot topic in the research fields of aging and regenerative medicine. Indeed, Myc appears to have a role in wound healing, in peripheral nerves and in liver, pancreas and even heart recovery. Herein, we discuss the state of the art of Myc's role in tissue regeneration, giving an overview of its potent action beyond cancer.
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Affiliation(s)
- Barbara Illi
- Institute of Molecular Biology and Pathology, National Research Council, c/o Department of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy
| | - Sergio Nasi
- Institute of Molecular Biology and Pathology, National Research Council, c/o Department of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy
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25
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Thorpe J, Perry MD, Contreras O, Hurley E, Parker G, Harvey RP, Hill AP, Vandenberg JI. Development of a robust induced pluripotent stem cell atrial cardiomyocyte differentiation protocol to model atrial arrhythmia. Stem Cell Res Ther 2023; 14:183. [PMID: 37501071 PMCID: PMC10373292 DOI: 10.1186/s13287-023-03405-5] [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: 03/28/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Atrial fibrillation is the most common arrhythmia syndrome and causes significant morbidity and mortality. Current therapeutics, however, have limited efficacy. Notably, many therapeutics shown to be efficacious in animal models have not proved effective in humans. Thus, there is a need for a drug screening platform based on human tissue. The aim of this study was to develop a robust protocol for generating atrial cardiomyocytes from human-induced pluripotent stem cells. METHODS A novel protocol for atrial differentiation, with optimized timing of retinoic acid during mesoderm formation, was compared to two previously published methods. Each differentiation method was assessed for successful formation of a contractile syncytium, electrical properties assayed by optical action potential recordings and multi-electrode array electrophysiology, and response to the G-protein-gated potassium channel activator, carbamylcholine. Atrial myocyte monolayers, derived using the new differentiation protocol, were further assessed for cardiomyocyte purity, gene expression, and the ability to form arrhythmic rotors in response to burst pacing. RESULTS Application of retinoic acid at day 1 of mesoderm formation resulted in a robust differentiation of atrial myocytes with contractile syncytium forming in 16/18 differentiations across two cell lines. Atrial-like myocytes produced have shortened action potentials and field potentials, when compared to standard application of retinoic acid at the cardiac mesoderm stage. Day 1 retinoic acid produced atrial cardiomyocytes are also carbamylcholine sensitive, indicative of active Ikach currents, which was distinct from ventricular myocytes and standard retinoic addition in matched differentiations. A current protocol utilizing reduced Activin A and BMP4 can produce atrial cardiomyocytes with equivalent functionality but with reduced robustness of differentiation; only 8/17 differentiations produced a contractile syncytium. The day 1 retinoic acid protocol was successfully applied to 6 iPSC lines (3 male and 3 female) without additional optimization or modification. Atrial myocytes produced could also generate syncytia with rapid conduction velocities, > 40 cm s-1, and form rotor style arrhythmia in response to burst pacing. CONCLUSIONS This method combines an enhanced atrial-like phenotype with robustness of differentiation, which will facilitate further research in human atrial arrhythmia and myopathies, while being economically viable for larger anti-arrhythmic drug screens.
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Affiliation(s)
- Jordan Thorpe
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
| | - Matthew D Perry
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
- Department of Pharmacology, School of Biomedical Sciences, University of New South Wales, Sydney, Australia
| | - Osvaldo Contreras
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
| | - Emily Hurley
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
| | - George Parker
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
| | - Richard P Harvey
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
- School of Biotechnology and Biomolecular Science, University of New South Wales, Sydney, NSW, Australia
| | - Adam P Hill
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia.
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia.
| | - Jamie I Vandenberg
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia.
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia.
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26
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Allan A, Creech J, Hausner C, Krajcarski P, Gunawan B, Poulin N, Kozlowski P, Clark CW, Dow R, Saraithong P, Mair DB, Block T, Monteiro da Rocha A, Kim DH, Herron TJ. High-throughput longitudinal electrophysiology screening of mature chamber-specific hiPSC-CMs using optical mapping. iScience 2023; 26:107142. [PMID: 37416454 PMCID: PMC10320609 DOI: 10.1016/j.isci.2023.107142] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 06/01/2023] [Accepted: 06/12/2023] [Indexed: 07/08/2023] Open
Abstract
hiPSC-CMs are being considered by the Food and Drug Administration and other regulatory agencies for in vitro cardiotoxicity screening to provide human-relevant safety data. Widespread adoption of hiPSC-CMs in regulatory and academic science is limited by the immature, fetal-like phenotype of the cells. Here, to advance the maturation state of hiPSC-CMs, we developed and validated a human perinatal stem cell-derived extracellular matrix coating applied to high-throughput cell culture plates. We also present and validate a cardiac optical mapping device designed for high-throughput functional assessment of mature hiPSC-CM action potentials using voltage-sensitive dye and calcium transients using calcium-sensitive dyes or genetically encoded calcium indicators (GECI, GCaMP6). We utilize the optical mapping device to provide new biological insight into mature chamber-specific hiPSC-CMs, responsiveness to cardioactive drugs, the effect of GCaMP6 genetic variants on electrophysiological function, and the effect of daily β-receptor stimulation on hiPSC-CM monolayer function and SERCA2a expression.
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Affiliation(s)
- Andrew Allan
- Cairn Research, Graveney Road, Faversham, Kent ME13 8UP UK
| | - Jeffery Creech
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
| | - Christian Hausner
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
| | - Peyton Krajcarski
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
| | - Bianca Gunawan
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
| | - Noah Poulin
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
| | - Paul Kozlowski
- Michigan Medicine, Internal Medicine-Cardiology, Ann Arbor, MI 48109, USA
| | - Christopher Wayne Clark
- University of Michigan, School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI 48109, USA
| | - Rachel Dow
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
| | - Prakaimuk Saraithong
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
- Michigan Medicine, Internal Medicine-Cardiology, Ann Arbor, MI 48109, USA
| | - Devin B. Mair
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Travis Block
- StemBioSys, Inc, 3463 Magic Drive, Suite 110, San Antonio, TX 78229, USA
| | - Andre Monteiro da Rocha
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
- Michigan Medicine, Internal Medicine-Cardiology, Ann Arbor, MI 48109, USA
| | - Deok-Ho Kim
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Todd J. Herron
- University of Michigan, Frankel Cardiovascular Regeneration Core Laboratory, Ann Arbor, MI 48109, USA
- Michigan Medicine, Internal Medicine-Cardiology, Ann Arbor, MI 48109, USA
- Michigan Medicine, Molecular & Integrative Physiology, Ann Arbor, MI 48109, USA
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27
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Ahmad FS, Jin Y, Grassam-Rowe A, Zhou Y, Yuan M, Fan X, Zhou R, Mu-u-min R, O'Shea C, Ibrahim AM, Hyder W, Aguib Y, Yacoub M, Pavlovic D, Zhang Y, Tan X, Lei M, Terrar DA. Generation of cardiomyocytes from human-induced pluripotent stem cells resembling atrial cells with ability to respond to adrenoceptor agonists. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220312. [PMID: 37122218 PMCID: PMC10150206 DOI: 10.1098/rstb.2022.0312] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 12/07/2022] [Indexed: 05/02/2023] Open
Abstract
Atrial fibrillation (AF) is the most common chronic arrhythmia presenting a heavy disease burden. We report a new approach for generating cardiomyocytes (CMs) resembling atrial cells from human-induced pluripotent stem cells (hiPSCs) using a combination of Gremlin 2 and retinoic acid treatment. More than 40% of myocytes showed rod-shaped morphology, expression of CM proteins (including ryanodine receptor 2, α-actinin-2 and F-actin) and striated appearance, all of which were broadly similar to the characteristics of adult atrial myocytes (AMs). Isolated myocytes were electrically quiescent until stimulated to fire action potentials with an AM profile and an amplitude of approximately 100 mV, arising from a resting potential of approximately -70 mV. Single-cell RNA sequence analysis showed a high level of expression of several atrial-specific transcripts including NPPA, MYL7, HOXA3, SLN, KCNJ4, KCNJ5 and KCNA5. Amplitudes of calcium transients recorded from spontaneously beating cultures were increased by the stimulation of α-adrenoceptors (activated by phenylephrine and blocked by prazosin) or β-adrenoceptors (activated by isoproterenol and blocked by CGP20712A). Our new approach provides human AMs with mature characteristics from hiPSCs which will facilitate drug discovery by enabling the study of human atrial cell signalling pathways and AF. This article is part of the theme issue 'The heartbeat: its molecular basis and physiological mechanisms'.
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Affiliation(s)
- Faizzan S. Ahmad
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
- Cure8bio, Inc, 395 Fulton Street, Westbury, NY 11590, USA
| | - Yongcheng Jin
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | | | - Yafei Zhou
- Key Laboratory of Medical Electrophysiology of the Ministry of Education and Institute of Cardiovascular Research, Southwest Medical University, Luzhou 6400, People's Republic of China
- Shaanxi Institute for Pediatric Diseases, Department of Cardiology, Xi'an Children's Hospital, Xi'an 710003, People's Republic of China
| | - Meng Yuan
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Xuehui Fan
- Key Laboratory of Medical Electrophysiology of the Ministry of Education and Institute of Cardiovascular Research, Southwest Medical University, Luzhou 6400, People's Republic of China
| | - Rui Zhou
- Key Laboratory of Medical Electrophysiology of the Ministry of Education and Institute of Cardiovascular Research, Southwest Medical University, Luzhou 6400, People's Republic of China
| | - Razik Mu-u-min
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Christopher O'Shea
- Institute of Cardiovascular Sciences, College of Medicine and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Ayman M. Ibrahim
- Aswan Heart Centre, Aswan 1242770, Egypt
- Department of Zoology, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Wajiha Hyder
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Yasmine Aguib
- Aswan Heart Centre, Aswan 1242770, Egypt
- National Heart and Lung Institute, Heart Science Centre, Imperial College London, Middlesex SW3 6LY, UK
| | - Magdi Yacoub
- Aswan Heart Centre, Aswan 1242770, Egypt
- National Heart and Lung Institute, Heart Science Centre, Imperial College London, Middlesex SW3 6LY, UK
| | - Davor Pavlovic
- Institute of Cardiovascular Sciences, College of Medicine and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Yanmin Zhang
- Shaanxi Institute for Pediatric Diseases, Department of Cardiology, Xi'an Children's Hospital, Xi'an 710003, People's Republic of China
| | - Xiaoqiu Tan
- Key Laboratory of Medical Electrophysiology of the Ministry of Education and Institute of Cardiovascular Research, Southwest Medical University, Luzhou 6400, People's Republic of China
| | - Ming Lei
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Derek A. Terrar
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
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28
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Parker LE, Kurzlechner LM, Landstrom AP. Induced Pluripotent Stem Cell-Based Modeling of Single-Ventricle Congenital Heart Diseases. Curr Cardiol Rep 2023; 25:295-305. [PMID: 36930454 PMCID: PMC10726018 DOI: 10.1007/s11886-023-01852-3] [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] [Accepted: 02/16/2023] [Indexed: 03/18/2023]
Abstract
PURPOSE OF REVIEW Congenital heart disease includes a wide variety of structural cardiac defects, the most severe of which are single ventricle defects (SVD). These patients suffer from significant morbidity and mortality; however, our understanding of the developmental etiology of these conditions is limited. Model organisms offer a window into normal and abnormal cardiogenesis yet often fail to recapitulate complex congenital heart defects seen in patients. The use of induced pluripotent stem cells (iPSCs) derived from patients with single-ventricle defects opens the door to studying SVD in patient-derived cardiomyocytes (iPSC-CMs) in a variety of different contexts, including organoids and chamber-specific cardiomyocytes. As the genetic and cellular causes of SVD are not well defined, patient-derived iPSC-CMs hold promise for uncovering mechanisms of disease development and serve as a platform for testing therapies. The purpose of this review is to highlight recent advances in iPSC-based models of SVD. RECENT FINDINGS Recent advances in patient-derived iPSC-CM differentiation, as well as the development of both chamber-specific and non-myocyte cardiac cell types, make it possible to model the complex genetic and molecular architecture involved in SVD development. Moreover, iPSC models have become increasingly complex with the generation of 3D organoids and engineered cardiac tissues which open the door to new mechanistic insight into SVD development. Finally, iPSC-CMs have been used in proof-of-concept studies that the molecular underpinnings of SVD may be targetable for future therapies. While each platform has its advantages and disadvantages, the use of patient-derived iPSC-CMs offers a window into patient-specific cardiogenesis and SVD development. Advancement in stem-cell based modeling of SVD promises to revolutionize our understanding of the developmental etiology of SVD and provides a tool for developing and testing new therapies.
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Affiliation(s)
- Lauren E Parker
- Department of Pediatrics, Division of Cardiology, Duke University School of Medicine, Durham, NC, USA
| | - Leonie M Kurzlechner
- Department of Pediatrics, Division of Cardiology, Duke University School of Medicine, Durham, NC, USA
| | - Andrew P Landstrom
- Department of Pediatrics, Division of Cardiology, Duke University School of Medicine, Durham, NC, USA.
- Department of Cell Biology, Duke University School of Medicine, Durham, NC, USA.
- Duke University Medical Center, Box 2652, Durham, NC, 27710, USA.
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29
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Dark N, Cosson MV, Tsansizi LI, Owen TJ, Ferraro E, Francis AJ, Tsai S, Bouissou C, Weston A, Collinson L, Abi-Gerges N, Miller PE, MacLeod KT, Ehler E, Mitter R, Harding SE, Smith JC, Bernardo AS. Generation of left ventricle-like cardiomyocytes with improved structural, functional, and metabolic maturity from human pluripotent stem cells. CELL REPORTS METHODS 2023; 3:100456. [PMID: 37159667 PMCID: PMC10163040 DOI: 10.1016/j.crmeth.2023.100456] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 01/23/2023] [Accepted: 03/25/2023] [Indexed: 05/11/2023]
Abstract
Decreased left ventricle (LV) function caused by genetic mutations or injury often leads to debilitating and fatal cardiovascular disease. LV cardiomyocytes are, therefore, a potentially valuable therapeutical target. Human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) are neither homogeneous nor functionally mature, which reduces their utility. Here, we exploit cardiac development knowledge to instruct differentiation of hPSCs specifically toward LV cardiomyocytes. Correct mesoderm patterning and retinoic acid pathway blocking are essential to generate near-homogenous LV-specific hPSC-CMs (hPSC-LV-CMs). These cells transit via first heart field progenitors and display typical ventricular action potentials. Importantly, hPSC-LV-CMs exhibit increased metabolism, reduced proliferation, and improved cytoarchitecture and functional maturity compared with age-matched cardiomyocytes generated using the standard WNT-ON/WNT-OFF protocol. Similarly, engineered heart tissues made from hPSC-LV-CMs are better organized, produce higher force, and beat more slowly but can be paced to physiological levels. Together, we show that functionally matured hPSC-LV-CMs can be obtained rapidly without exposure to current maturation regimes.
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Affiliation(s)
| | | | - Lorenza I. Tsansizi
- The Francis Crick Institute, London, UK
- NHLI, Imperial College London, London, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Andreia S. Bernardo
- The Francis Crick Institute, London, UK
- NHLI, Imperial College London, London, UK
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30
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Seibertz F, Sutanto H, Dülk R, Pronto JRD, Springer R, Rapedius M, Liutkute A, Ritter M, Jung P, Stelzer L, Hüsgen LM, Klopp M, Rubio T, Fakuade FE, Mason FE, Hartmann N, Pabel S, Streckfuss-Bömeke K, Cyganek L, Sossalla S, Heijman J, Voigt N. Electrophysiological and calcium-handling development during long-term culture of human-induced pluripotent stem cell-derived cardiomyocytes. Basic Res Cardiol 2023; 118:14. [PMID: 37020075 PMCID: PMC10076390 DOI: 10.1007/s00395-022-00973-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 04/07/2023]
Abstract
Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are increasingly used for personalised medicine and preclinical cardiotoxicity testing. Reports on hiPSC-CM commonly describe heterogenous functional readouts and underdeveloped or immature phenotypical properties. Cost-effective, fully defined monolayer culture is approaching mainstream adoption; however, the optimal age at which to utilise hiPSC-CM is unknown. In this study, we identify, track and model the dynamic developmental behaviour of key ionic currents and Ca2+-handling properties in hiPSC-CM over long-term culture (30-80 days). hiPSC-CMs > 50 days post differentiation show significantly larger ICa,L density along with an increased ICa,L-triggered Ca2+-transient. INa and IK1 densities significantly increase in late-stage cells, contributing to increased upstroke velocity and reduced action potential duration, respectively. Importantly, our in silico model of hiPSC-CM electrophysiological age dependence confirmed IK1 as the key ionic determinant of action potential shortening in older cells. We have made this model available through an open source software interface that easily allows users to simulate hiPSC-CM electrophysiology and Ca2+-handling and select the appropriate age range for their parameter of interest. This tool, together with the insights from our comprehensive experimental characterisation, could be useful in future optimisation of the culture-to-characterisation pipeline in the field of hiPSC-CM research.
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Affiliation(s)
- Fitzwilliam Seibertz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
| | - Henry Sutanto
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Faculty of Health, Medicine and Life Sciences, Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
| | - Rebekka Dülk
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Julius Ryan D Pronto
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Robin Springer
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | | | - Aiste Liutkute
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
| | - Melanie Ritter
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Philipp Jung
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lea Stelzer
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Luisa M Hüsgen
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Marie Klopp
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Tony Rubio
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Funsho E Fakuade
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
| | - Fleur E Mason
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Nico Hartmann
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
| | - Steffen Pabel
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Katrin Streckfuss-Bömeke
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - Lukas Cyganek
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
| | - Samuel Sossalla
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Jordi Heijman
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Faculty of Health, Medicine and Life Sciences, Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands.
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany.
- Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany.
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31
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Altomare C, Bartolucci C, Sala L, Balbi C, Burrello J, Pietrogiovanna N, Burrello A, Bolis S, Panella S, Arici M, Krause R, Rocchetti M, Severi S, Barile L. A dynamic clamping approach using in silico IK1 current for discrimination of chamber-specific hiPSC-derived cardiomyocytes. Commun Biol 2023; 6:291. [PMID: 36934210 PMCID: PMC10024709 DOI: 10.1038/s42003-023-04674-9] [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: 05/05/2022] [Accepted: 03/07/2023] [Indexed: 03/20/2023] Open
Abstract
Human induced pluripotent stem cell (hiPSC)-derived cardiomyocytes (CM) constitute a mixed population of ventricular-, atrial-, nodal-like cells, limiting the reliability for studying chamber-specific disease mechanisms. Previous studies characterised CM phenotype based on action potential (AP) morphology, but the classification criteria were still undefined. Our aim was to use in silico models to develop an automated approach for discriminating the electrophysiological differences between hiPSC-CM. We propose the dynamic clamp (DC) technique with the injection of a specific IK1 current as a tool for deriving nine electrical biomarkers and blindly classifying differentiated CM. An unsupervised learning algorithm was applied to discriminate CM phenotypes and principal component analysis was used to visualise cell clustering. Pharmacological validation was performed by specific ion channel blocker and receptor agonist. The proposed approach improves the translational relevance of the hiPSC-CM model for studying mechanisms underlying inherited or acquired atrial arrhythmias in human CM, and for screening anti-arrhythmic agents.
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Affiliation(s)
- Claudia Altomare
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Euler institute, Università Svizzera italiana, Lugano, Switzerland
| | - Chiara Bartolucci
- Department of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Cesena, Italy
| | - Luca Sala
- Istituto Auxologico Italiano IRCCS, Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Milan, Italy
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy
| | - Carolina Balbi
- Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Cellular and Molecular Cardiology, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland
| | - Jacopo Burrello
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Nicole Pietrogiovanna
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Alessio Burrello
- Department of Electrical, Electronic and Information Engineering (DEI), University of Bologna, Bologna, Italy
| | - Sara Bolis
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Cellular and Molecular Cardiology, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Stefano Panella
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Martina Arici
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy
| | - Rolf Krause
- Euler institute, Università Svizzera italiana, Lugano, Switzerland
| | - Marcella Rocchetti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy
| | - Stefano Severi
- Department of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Cesena, Italy.
| | - Lucio Barile
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland.
- Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.
- Euler institute, Università Svizzera italiana, Lugano, Switzerland.
- Faculty of Biomedical Sciences, Università Svizzera italiana, Lugano, Switzerland.
- Institute of Life Science, Scuola Superiore Sant'Anna, Pisa, Italy.
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Martin M, Gähwiler EKN, Generali M, Hoerstrup SP, Emmert MY. Advances in 3D Organoid Models for Stem Cell-Based Cardiac Regeneration. Int J Mol Sci 2023; 24:ijms24065188. [PMID: 36982261 PMCID: PMC10049446 DOI: 10.3390/ijms24065188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
The adult human heart cannot regain complete cardiac function following tissue injury, making cardiac regeneration a current clinical unmet need. There are a number of clinical procedures aimed at reducing ischemic damage following injury; however, it has not yet been possible to stimulate adult cardiomyocytes to recover and proliferate. The emergence of pluripotent stem cell technologies and 3D culture systems has revolutionized the field. Specifically, 3D culture systems have enhanced precision medicine through obtaining a more accurate human microenvironmental condition to model disease and/or drug interactions in vitro. In this study, we cover current advances and limitations in stem cell-based cardiac regenerative medicine. Specifically, we discuss the clinical implementation and limitations of stem cell-based technologies and ongoing clinical trials. We then address the advent of 3D culture systems to produce cardiac organoids that may better represent the human heart microenvironment for disease modeling and genetic screening. Finally, we delve into the insights gained from cardiac organoids in relation to cardiac regeneration and further discuss the implications for clinical translation.
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Affiliation(s)
- Marcy Martin
- Institute for Regenerative Medicine (IREM), University of Zurich, 8952 Schlieren, Switzerland
| | - Eric K. N. Gähwiler
- Institute for Regenerative Medicine (IREM), University of Zurich, 8952 Schlieren, Switzerland
| | - Melanie Generali
- Institute for Regenerative Medicine (IREM), University of Zurich, 8952 Schlieren, Switzerland
| | - Simon P. Hoerstrup
- Institute for Regenerative Medicine (IREM), University of Zurich, 8952 Schlieren, Switzerland
- Wyss Zurich Translational Center, University of Zurich and ETH Zurich, 8092 Zurich, Switzerland
| | - Maximilian Y. Emmert
- Institute for Regenerative Medicine (IREM), University of Zurich, 8952 Schlieren, Switzerland
- Wyss Zurich Translational Center, University of Zurich and ETH Zurich, 8092 Zurich, Switzerland
- Department of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum der Charité (DHZC), 13353 Berlin, Germany
- Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
- Correspondence: ; Tel.: +41-44-634-5610
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Schulz C, Lemoine MD, Mearini G, Koivumäki J, Sani J, Schwedhelm E, Kirchhof P, Ghalawinji A, Stoll M, Hansen A, Eschenhagen T, Christ T. PITX2 Knockout Induces Key Findings of Electrical Remodeling as Seen in Persistent Atrial Fibrillation. Circ Arrhythm Electrophysiol 2023; 16:e011602. [PMID: 36763906 DOI: 10.1161/circep.122.011602] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
BACKGROUND Electrical remodeling in human persistent atrial fibrillation is believed to result from rapid electrical activation of the atria, but underlying genetic causes may contribute. Indeed, common gene variants in an enhancer region close to PITX2 (paired-like homeodomain transcription factor 2) are strongly associated with atrial fibrillation, but the mechanism behind this association remains unknown. This study evaluated the consequences of PITX2 deletion (PITX2-/-) in human induced pluripotent stem cell-derived atrial cardiomyocytes. METHODS CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/clustered regularly interspaced short palindromic repeat-associated 9) was used to delete PITX2 in a healthy human iPSC line that served as isogenic control. Human induced pluripotent stem cell-derived atrial cardiomyocytes were differentiated with unfiltered retinoic acid and cultured in atrial engineered heart tissue. Force and action potential were measured in atrial engineered heart tissues. Single human induced pluripotent stem cell-derived atrial cardiomyocytes were isolated from atrial engineered heart tissue for ion current measurements. RESULTS PITX2-/- atrial engineered heart tissue beats slightly slower than isogenic control without irregularity. Force was lower in PITX2-/- than in isogenic control (0.053±0.015 versus 0.131±0.017 mN, n=28/3 versus n=28/4, PITX2-/- versus isogenic control; P<0.0001), accompanied by lower expression of CACNA1C and lower L-type Ca2+ current density. Early repolarization was weaker (action potential duration at 20% repolarization; 45.5±13.2 versus 8.6±5.3 ms, n=18/3 versus n=12/4, PITX2-/- versus isogenic control; P<0.0001), and maximum diastolic potential was more negative (-78.3±3.1 versus -69.7±0.6 mV, n=18/3 versus n=12/4, PITX2-/- versus isogenic control; P=0.001), despite normal inward rectifier currents (both IK1 and IK,ACh) and carbachol-induced shortening of action potential duration. CONCLUSIONS Complete PITX2 deficiency in human induced pluripotent stem cell-derived atrial cardiomyocytes recapitulates some findings of electrical remodeling of atrial fibrillation in the absence of fast beating, indicating that these abnormalities could be primary consequences of lower PITX2 levels.
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Affiliation(s)
- Carl Schulz
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck (C.S., M.D.L., G.M., J.S., E.S., P.K.)
| | - Marc D Lemoine
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck (C.S., M.D.L., G.M., J.S., E.S., P.K.)
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany (M.D.L., A.H., P.K., T.E., T.C.)
| | - Giulia Mearini
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck (C.S., M.D.L., G.M., J.S., E.S., P.K.)
- DiNAQOR AG, Pfäffikon, Switzerland (G.M., P.K.)
| | - Jussi Koivumäki
- BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Finland (J.K.)
| | - Jascha Sani
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck (C.S., M.D.L., G.M., J.S., E.S., P.K.)
| | - Edzard Schwedhelm
- Institute of Clinical Pharmacology and Toxicology (E.S.), University Medical Center Hamburg-Eppendorf, Germany
- German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck (C.S., M.D.L., G.M., J.S., E.S., P.K.)
| | - Paulus Kirchhof
- German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck (C.S., M.D.L., G.M., J.S., E.S., P.K.)
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany (M.D.L., A.H., P.K., T.E., T.C.)
- DiNAQOR AG, Pfäffikon, Switzerland (G.M., P.K.)
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, United Kingdom (P.K.)
| | - Amer Ghalawinji
- Division of Genetic Epidemiology, Institute of Human Genetics, University of Münster, Germany (A.G., M.S.)
| | - Monika Stoll
- Division of Genetic Epidemiology, Institute of Human Genetics, University of Münster, Germany (A.G., M.S.)
- Department of Biochemistry, CARIM School for Cardiovascular Sciences, Maastricht University, the Netherlands (M.S.)
| | - Arne Hansen
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany (M.D.L., A.H., P.K., T.E., T.C.)
| | - Thomas Eschenhagen
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany (M.D.L., A.H., P.K., T.E., T.C.)
| | - Torsten Christ
- Institute of Experimental Pharmacology and Toxicology (C.S., M.D.L., G.M., J.S., A.H., T.E., T.C.), University Medical Center Hamburg-Eppendorf, Germany
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany (M.D.L., A.H., P.K., T.E., T.C.)
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Abstract
Studies in animal models tracing organogenesis of the mesoderm-derived heart have emphasized the importance of signals coming from adjacent endodermal tissues in coordinating proper cardiac morphogenesis. Although in vitro models such as cardiac organoids have shown great potential to recapitulate the physiology of the human heart, they are unable to capture the complex crosstalk that takes place between the co-developing heart and endodermal organs, partly due to their distinct germ layer origins. In an effort to address this long-sought challenge, recent reports of multilineage organoids comprising both cardiac and endodermal derivatives have energized the efforts to understand how inter-organ, cross-lineage communications influence their respective morphogenesis. These co-differentiation systems have produced intriguing findings of shared signaling requirements for inducing cardiac specification together with primitive foregut, pulmonary, or intestinal lineages. Overall, these multilineage cardiac organoids offer an unprecedented window into human development that can reveal how the endoderm and heart cooperate to direct morphogenesis, patterning, and maturation. Further, through spatiotemporal reorganization, the co-emerged multilineage cells self-assemble into distinct compartments as seen in the cardiac-foregut, cardiac-intestine, and cardiopulmonary organoids and undergo cell migration and tissue reorganization to establish tissue boundaries. Looking into the future, these cardiac incorporated, multilineage organoids will inspire future strategies for improved cell sourcing for regenerative interventions and provide more effective models for disease investigation and drug testing. In this review, we will introduce the developmental context of coordinated heart and endoderm morphogenesis, discuss strategies for in vitro co-induction of cardiac and endodermal derivatives, and finally comment on the challenges and exciting new research directions enabled by this breakthrough.
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Affiliation(s)
- Wai Hoe Ng
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
| | - Barbie Varghese
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
| | - Hongpeng Jia
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Xi Ren
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
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Cachorro E, Günscht M, Schubert M, Sadek MS, Siegert J, Dutt F, Bauermeister C, Quickert S, Berning H, Nowakowski F, Lämmle S, Firneburg R, Luo X, Künzel SR, Klapproth E, Mirtschink P, Mayr M, Dewenter M, Vettel C, Heijman J, Lorenz K, Guan K, El-Armouche A, Wagner M, Kämmerer S. CNP Promotes Antiarrhythmic Effects via Phosphodiesterase 2. Circ Res 2023; 132:400-414. [PMID: 36715019 PMCID: PMC9930893 DOI: 10.1161/circresaha.122.322031] [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] [Indexed: 01/31/2023]
Abstract
BACKGROUND Ventricular arrhythmia and sudden cardiac death are the most common lethal complications after myocardial infarction. Antiarrhythmic pharmacotherapy remains a clinical challenge and novel concepts are highly desired. Here, we focus on the cardioprotective CNP (C-type natriuretic peptide) as a novel antiarrhythmic principle. We hypothesize that antiarrhythmic effects of CNP are mediated by PDE2 (phosphodiesterase 2), which has the unique property to be stimulated by cGMP to primarily hydrolyze cAMP. Thus, CNP might promote beneficial effects of PDE2-mediated negative crosstalk between cAMP and cGMP signaling pathways. METHODS To determine antiarrhythmic effects of cGMP-mediated PDE2 stimulation by CNP, we analyzed arrhythmic events and intracellular trigger mechanisms in mice in vivo, at organ level and in isolated cardiomyocytes as well as in human-induced pluripotent stem cell-derived cardiomyocytes. RESULTS In ex vivo perfused mouse hearts, CNP abrogated arrhythmia after ischemia/reperfusion injury. Upon high-dose catecholamine injections in mice, PDE2 inhibition prevented the antiarrhythmic effect of CNP. In mouse ventricular cardiomyocytes, CNP blunted the catecholamine-mediated increase in arrhythmogenic events as well as in ICaL, INaL, and Ca2+ spark frequency. Mechanistically, this was driven by reduced cellular cAMP levels and decreased phosphorylation of Ca2+ handling proteins. Key experiments were confirmed in human iPSC-derived cardiomyocytes. Accordingly, the protective CNP effects were reversed by either specific pharmacological PDE2 inhibition or cardiomyocyte-specific PDE2 deletion. CONCLUSIONS CNP shows strong PDE2-dependent antiarrhythmic effects. Consequently, the CNP-PDE2 axis represents a novel and attractive target for future antiarrhythmic strategies.
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Affiliation(s)
- Eleder Cachorro
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Mario Günscht
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Mario Schubert
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Mirna S. Sadek
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Johanna Siegert
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Fabian Dutt
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Carla Bauermeister
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Susann Quickert
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Henrik Berning
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Felix Nowakowski
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Simon Lämmle
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Rebecca Firneburg
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Xiaojing Luo
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Stephan R. Künzel
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Erik Klapproth
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Peter Mirtschink
- Institute of Clinical Chemistry and Laboratory Medicine, Department of Clinical Pathobiochemistry, University Hospital Dresden, Germany (P.M.)
| | - Manuel Mayr
- The James Black Centre, King’s College, University of London, United Kingdom (M.M.)
- Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany (M.M.)
| | - Matthias Dewenter
- Department of Molecular Cardiology and Epigenetics, Heidelberg University, Germany (M.D.)
- DZHK (German Center for Cardiovascular Research), Partner Site, Heidelberg-Mannheim, Germany (M.D., C.V.)
| | - Christiane Vettel
- DZHK (German Center for Cardiovascular Research), Partner Site, Heidelberg-Mannheim, Germany (M.D., C.V.)
- Institute of Experimental and Clinical Pharmacology and Toxicology, University Medical Center Mannheim, Germany (C.V.)
| | - Jordi Heijman
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Faculty of Health, Medicine, and Life Sciences, Maastricht University, The Netherlands (J.H.)
| | - Kristina Lorenz
- Institut für Pharmakologie und Toxikologie, Julius-Maximilians-Universität Würzburg, Germany (K.L.)
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany (K.L.)
| | - Kaomei Guan
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Ali El-Armouche
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
| | - Michael Wagner
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
- Bereich Rhythmologie, Klinik für Innere Medizin und Kardiologie, Herzzentrum Dresden, Dresden University of Technology, Germany (M.W.)
| | - Susanne Kämmerer
- Institut für Pharmakologie und Toxikologie, Technische Universität Dresden, Germany (E.C., M.G., M.S., M.S.S., J.S., F.D., C.B., S.Q., H.B., F.N., S.L., R.F., X.L., S.R.K., E.K., K.G., A.E.-A., M.W., S.K.)
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Ren J, Li HW, Chen L, Zhang M, Liu YX, Zhang BW, Xu R, Miao YY, Xu XM, Hua X, Sun XG, Yu RJ, Long YT, Hu SS. Mass Spectrometry Imaging-Based Single-Cell Lipidomics Profiles Metabolic Signatures of Heart Failure. RESEARCH 2023; 6:0019. [PMID: 37040505 PMCID: PMC10076023 DOI: 10.34133/research.0019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/14/2022] [Indexed: 01/13/2023]
Abstract
Heart failure (HF), leading as one of the main causes of mortality, has become a serious public health issue with high prevalence around the world. Single cardiomyocyte (CM) metabolomics promises to revolutionize the understanding of HF pathogenesis since the metabolic remodeling in the human hearts plays a vital role in the disease progression. Unfortunately, current metabolic analysis is often limited by the dynamic features of metabolites and the critical needs for high-quality isolated CMs. Here, high-quality CMs were directly isolated from transgenic HF mice biopsies and further employed in the cellular metabolic analysis. The lipids landscape in individual CMs was profiled with a delayed extraction mode in time-of-flight secondary ion mass spectrometry. Specific metabolic signatures were identified to distinguish HF CMs from the control subjects, presenting as possible single-cell biomarkers. The spatial distributions of these signatures were imaged in single cells, and those were further found to be strongly associated with lipoprotein metabolism, transmembrane transport, and signal transduction. Taken together, we systematically studied the lipid metabolism of single CMs with a mass spectrometry imaging method, which directly benefited the identification of HF-associated signatures and a deeper understanding of HF-related metabolic pathways.
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Affiliation(s)
- Jie Ren
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medicine Science (CAMS) and Perking Union Medical College (PUMC), Beijing, 100037, P. R. China
| | - Hao-Wen Li
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Liang Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medicine Science (CAMS) and Perking Union Medical College (PUMC), Beijing, 100037, P. R. China
| | - Min Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yan-Xiang Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medicine Science (CAMS) and Perking Union Medical College (PUMC), Beijing, 100037, P. R. China
| | - Bo-Wen Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medicine Science (CAMS) and Perking Union Medical College (PUMC), Beijing, 100037, P. R. China
| | - Rui Xu
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
| | - Yan-Yan Miao
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
| | - Xue-Mei Xu
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
| | - Xin Hua
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Xiao-Gang Sun
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medicine Science (CAMS) and Perking Union Medical College (PUMC), Beijing, 100037, P. R. China
| | - Ru-Jia Yu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yi-Tao Long
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Sheng-Shou Hu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medicine Science (CAMS) and Perking Union Medical College (PUMC), Beijing, 100037, P. R. China
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37
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Martyniak A, Jeż M, Dulak J, Stępniewski J. Adaptation of cardiomyogenesis to the generation and maturation of cardiomyocytes from human pluripotent stem cells. IUBMB Life 2023; 75:8-29. [PMID: 36263833 DOI: 10.1002/iub.2685] [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: 06/08/2022] [Accepted: 10/05/2022] [Indexed: 12/29/2022]
Abstract
The advent of methods for efficient generation and cardiac differentiation of pluripotent stem cells opened new avenues for disease modelling, drug testing, and cell therapies of the heart. However, cardiomyocytes (CM) obtained from such cells demonstrate an immature, foetal-like phenotype that involves spontaneous contractions, irregular morphology, expression of embryonic isoforms of sarcomere components, and low level of ion channels. These and other features may affect cellular response to putative therapeutic compounds and the efficient integration into the host myocardium after in vivo delivery. Therefore, novel strategies to increase the maturity of pluripotent stem cell-derived CM are of utmost importance. Several approaches have already been developed relying on molecular changes that occur during foetal and postnatal maturation of the heart, its electromechanical activity, and the cellular composition. As a better understanding of these determinants may facilitate the generation of efficient protocols for in vitro acquisition of an adult-like phenotype by immature CM, this review summarizes the most important molecular factors that govern CM during embryonic development, postnatal changes that trigger heart maturation, as well as protocols that are currently used to generate mature pluripotent stem cell-derived cardiomyocytes.
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Affiliation(s)
- Alicja Martyniak
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Mateusz Jeż
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Józef Dulak
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Jacek Stępniewski
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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38
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Pan Z, Liang P. Human-Induced Pluripotent Stem Cell-Based Differentiation of Cardiomyocyte Subtypes for Drug Discovery and Cell Therapy. Handb Exp Pharmacol 2023; 281:209-233. [PMID: 37421443 DOI: 10.1007/164_2023_663] [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] [Indexed: 07/10/2023]
Abstract
Drug attrition rates have increased over the past few years, accompanied with growing costs for the pharmaceutical industry and consumers. Lack of in vitro models connecting the results of toxicity screening assays with clinical outcomes accounts for this high attrition rate. The emergence of cardiomyocytes derived from human pluripotent stem cells provides an amenable source of cells for disease modeling, drug discovery, and cardiotoxicity screening. Functionally similar to to embryonic stem cells, but with fewer ethical concerns, induced pluripotent stem cells (iPSCs) can recapitulate patient-specific genetic backgrounds, which would be a huge revolution for personalized medicine. The generated iPSC-derived cardiomyocytes (iPSC-CMs) represent different subtypes including ventricular-, atrial-, and nodal-like cardiomyocytes. Purifying these subtypes for chamber-specific drug screening presents opportunities and challenges. In this chapter, we discuss the strategies for the purification of iPSC-CMs, the use of iPSC-CMs for drug discovery and cardiotoxicity test, and the current limitations of iPSC-CMs that should be overcome for wider and more precise cardiovascular applications.
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Affiliation(s)
- Ziwei Pan
- Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, China
| | - Ping Liang
- Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Institute of Translational Medicine, Zhejiang University, Hangzhou, China.
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Klapproth E, Witt A, Klose P, Wiedemann J, Vavilthota N, Künzel SR, Kämmerer S, Günscht M, Sprott D, Lesche M, Rost F, Dahl A, Rauch E, Kattner L, Weber S, Mirtschink P, Kopaliani I, Guan K, Lorenz K, Saftig P, Wagner M, El-Armouche A. Targeting cardiomyocyte ADAM10 ectodomain shedding promotes survival early after myocardial infarction. Nat Commun 2022; 13:7648. [PMID: 36496449 PMCID: PMC9741599 DOI: 10.1038/s41467-022-35331-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022] Open
Abstract
After myocardial infarction the innate immune response is pivotal in clearing of tissue debris as well as scar formation, but exaggerated cytokine and chemokine secretion with subsequent leukocyte infiltration also leads to further tissue damage. Here, we address the value of targeting a previously unknown a disintegrin and metalloprotease 10 (ADAM10)/CX3CL1 axis in the regulation of neutrophil recruitment early after MI. We show that myocardial ADAM10 is distinctly upregulated in myocardial biopsies from patients with ischemia-driven cardiomyopathy. Intriguingly, upon MI in mice, pharmacological ADAM10 inhibition as well as genetic cardiomycyte-specific ADAM10 deletion improves survival with markedly enhanced heart function and reduced scar size. Mechanistically, abolished ADAM10-mediated CX3CL1 ectodomain shedding leads to diminished IL-1β-dependent inflammation, reduced neutrophil bone marrow egress as well as myocardial tissue infiltration. Thus, our data shows a conceptual insight into how acute MI induces chemotactic signaling via ectodomain shedding in cardiomyocytes.
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Affiliation(s)
- Erik Klapproth
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Anke Witt
- grid.4488.00000 0001 2111 7257Department of Physiology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Pauline Klose
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Johanna Wiedemann
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Nikitha Vavilthota
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stephan R. Künzel
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Susanne Kämmerer
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Mario Günscht
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - David Sprott
- grid.4488.00000 0001 2111 7257Department of Physiology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Mathias Lesche
- grid.4488.00000 0001 2111 7257DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Fabian Rost
- grid.4488.00000 0001 2111 7257DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Andreas Dahl
- grid.4488.00000 0001 2111 7257DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | | | | | - Silvio Weber
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Peter Mirtschink
- grid.4488.00000 0001 2111 7257Institute of Clinical Chemistry and Laboratory Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Irakli Kopaliani
- grid.4488.00000 0001 2111 7257Department of Physiology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Kaomei Guan
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Kristina Lorenz
- grid.8379.50000 0001 1958 8658Institute of Pharmacology and Toxicology, Julius-Maximilians-University of Würzburg, Würzburg, Germany ,grid.419243.90000 0004 0492 9407Leibniz-Institut für Analytische Wissenschaften -ISAS- e.V., Dortmund, Germany
| | - Paul Saftig
- grid.9764.c0000 0001 2153 9986Biochemical Institute, Christian-Albrechts-Universität Kiel, Kiel, Germany
| | - Michael Wagner
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.4488.00000 0001 2111 7257Rhythmology, Clinic of Internal Medicine and Cardiology, Heart Center Dresden, Technische Universität Dresden, Dresden, Germany
| | - Ali El-Armouche
- grid.4488.00000 0001 2111 7257Institute of Pharmacology and Toxicology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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Vierock J, Peter E, Grimm C, Rozenberg A, Chen IW, Tillert L, Castro Scalise AG, Casini M, Augustin S, Tanese D, Forget BC, Peyronnet R, Schneider-Warme F, Emiliani V, Béjà O, Hegemann P. WiChR, a highly potassium-selective channelrhodopsin for low-light one- and two-photon inhibition of excitable cells. SCIENCE ADVANCES 2022; 8:eadd7729. [PMID: 36383037 PMCID: PMC9733931 DOI: 10.1126/sciadv.add7729] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 10/28/2022] [Indexed: 05/30/2023]
Abstract
The electric excitability of muscle, heart, and brain tissue relies on the precise interplay of Na+- and K+-selective ion channels. The involved ion fluxes are controlled in optogenetic studies using light-gated channelrhodopsins (ChRs). While non-selective cation-conducting ChRs are well established for excitation, K+-selective ChRs (KCRs) for efficient inhibition have only recently come into reach. Here, we report the molecular analysis of recently discovered KCRs from the stramenopile Hyphochytrium catenoides and identification of a novel type of hydrophobic K+ selectivity filter. Next, we demonstrate that the KCR signature motif is conserved in related stramenopile ChRs. Among them, WiChR from Wobblia lunata features a so far unmatched preference for K+ over Na+, stable photocurrents under continuous illumination, and a prolonged open-state lifetime. Showing high expression levels in cardiac myocytes and neurons, WiChR allows single- and two-photon inhibition at low irradiance and reduced tissue heating. Therefore, we recommend WiChR as the long-awaited efficient and versatile optogenetic inhibitor.
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Affiliation(s)
- Johannes Vierock
- Institut für Biologie, Experimentelle Biophysik, Humboldt-Universität zu Berlin, Berlin, Germany
- Neuroscience Research Center, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Enrico Peter
- Institut für Biologie, Experimentelle Biophysik, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Christiane Grimm
- Wavefront Engineering Microscopy Group, Photonics Department, Institut de la Vision, Sorbonne Université, INSERM, CNRS, Paris, France
| | - Andrey Rozenberg
- Faculty of Biology, Technion–Israel Institute of Technology, Haifa 32000, Israel
| | - I-Wen Chen
- Wavefront Engineering Microscopy Group, Photonics Department, Institut de la Vision, Sorbonne Université, INSERM, CNRS, Paris, France
| | - Linda Tillert
- Neuroscience Research Center, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | | | - Marilù Casini
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg · Bad Krozingen, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe and ITACA Institute (COR), Universitat Politècnica de València, Valencia, Spain
| | - Sandra Augustin
- Institut für Biologie, Experimentelle Biophysik, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Dimitrii Tanese
- Wavefront Engineering Microscopy Group, Photonics Department, Institut de la Vision, Sorbonne Université, INSERM, CNRS, Paris, France
| | - Benoît C. Forget
- Wavefront Engineering Microscopy Group, Photonics Department, Institut de la Vision, Sorbonne Université, INSERM, CNRS, Paris, France
| | - Rémi Peyronnet
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg · Bad Krozingen, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Franziska Schneider-Warme
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg · Bad Krozingen, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Valentina Emiliani
- Wavefront Engineering Microscopy Group, Photonics Department, Institut de la Vision, Sorbonne Université, INSERM, CNRS, Paris, France
| | - Oded Béjà
- Faculty of Biology, Technion–Israel Institute of Technology, Haifa 32000, Israel
| | - Peter Hegemann
- Institut für Biologie, Experimentelle Biophysik, Humboldt-Universität zu Berlin, Berlin, Germany
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41
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Advances in Cellular Reprogramming-Based Approaches for Heart Regenerative Repair. Cells 2022; 11:cells11233914. [PMID: 36497171 PMCID: PMC9740402 DOI: 10.3390/cells11233914] [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: 10/18/2022] [Revised: 11/18/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Continuous loss of cardiomyocytes (CMs) is one of the fundamental characteristics of many heart diseases, which eventually can lead to heart failure. Due to the limited proliferation ability of human adult CMs, treatment efficacy has been limited in terms of fully repairing damaged hearts. It has been shown that cell lineage conversion can be achieved by using cell reprogramming approaches, including human induced pluripotent stem cells (hiPSCs), providing a promising therapeutic for regenerative heart medicine. Recent studies using advanced cellular reprogramming-based techniques have also contributed some new strategies for regenerative heart repair. In this review, hiPSC-derived cell therapeutic methods are introduced, and the clinical setting challenges (maturation, engraftment, immune response, scalability, and tumorigenicity), with potential solutions, are discussed. Inspired by the iPSC reprogramming, the approaches of direct cell lineage conversion are merging, such as induced cardiomyocyte-like cells (iCMs) and induced cardiac progenitor cells (iCPCs) derived from fibroblasts, without induction of pluripotency. The studies of cellular and molecular pathways also reveal that epigenetic resetting is the essential mechanism of reprogramming and lineage conversion. Therefore, CRISPR techniques that can be repurposed for genomic or epigenetic editing become attractive approaches for cellular reprogramming. In addition, viral and non-viral delivery strategies that are utilized to achieve CM reprogramming will be introduced, and the therapeutic effects of iCMs or iCPCs on myocardial infarction will be compared. After the improvement of reprogramming efficiency by developing new techniques, reprogrammed iCPCs or iCMs will provide an alternative to hiPSC-based approaches for regenerative heart therapies, heart disease modeling, and new drug screening.
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42
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Lyu Q, Gong S, Lees JG, Yin J, Yap LW, Kong AM, Shi Q, Fu R, Zhu Q, Dyer A, Dyson JM, Lim SY, Cheng W. A soft and ultrasensitive force sensing diaphragm for probing cardiac organoids instantaneously and wirelessly. Nat Commun 2022; 13:7259. [PMID: 36433978 PMCID: PMC9700778 DOI: 10.1038/s41467-022-34860-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022] Open
Abstract
Time-lapse mechanical properties of stem cell derived cardiac organoids are important biological cues for understanding contraction dynamics of human heart tissues, cardiovascular functions and diseases. However, it remains difficult to directly, instantaneously and accurately characterize such mechanical properties in real-time and in situ because cardiac organoids are topologically complex, three-dimensional soft tissues suspended in biological media, which creates a mismatch in mechanics and topology with state-of-the-art force sensors that are typically rigid, planar and bulky. Here, we present a soft resistive force-sensing diaphragm based on ultrasensitive resistive nanocracked platinum film, which can be integrated into an all-soft culture well via an oxygen plasma-enabled bonding process. We show that a reliable organoid-diaphragm contact can be established by an 'Atomic Force Microscope-like' engaging process. This allows for instantaneous detection of the organoids' minute contractile forces and beating patterns during electrical stimulation, resuscitation, drug dosing, tissue culture, and disease modelling.
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Affiliation(s)
- Quanxia Lyu
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia
| | - Shu Gong
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia
| | - Jarmon G. Lees
- grid.1073.50000 0004 0626 201XO’Brien Institute Department, St. Vincent’s Institute of Medical Research, Fitzroy, VIC Australia ,grid.1008.90000 0001 2179 088XDepartment of Medicine and Surgery, University of Melbourne, Melbourne, VIC Australia
| | - Jialiang Yin
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia
| | - Lim Wei Yap
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia
| | - Anne M. Kong
- grid.1073.50000 0004 0626 201XO’Brien Institute Department, St. Vincent’s Institute of Medical Research, Fitzroy, VIC Australia
| | - Qianqian Shi
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia
| | - Runfang Fu
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia
| | - Qiang Zhu
- grid.410660.5The Melbourne Centre for Nanofabrication, Clayton, VIC 3800 Australia
| | - Ash Dyer
- grid.410660.5The Melbourne Centre for Nanofabrication, Clayton, VIC 3800 Australia
| | - Jennifer M. Dyson
- Department of Biochemistry & Molecular Biology, Biomedicine Discovery Institute, Clayton, VIC 3800 Australia ,grid.1002.30000 0004 1936 7857Faculty of Engineering, Monash Institute of Medical Engineering (MIME), Monash University, Clayton, VIC 3800 Australia
| | - Shiang Y. Lim
- grid.1073.50000 0004 0626 201XO’Brien Institute Department, St. Vincent’s Institute of Medical Research, Fitzroy, VIC Australia ,grid.1008.90000 0001 2179 088XDepartment of Medicine and Surgery, University of Melbourne, Melbourne, VIC Australia ,grid.1002.30000 0004 1936 7857Drug Discovery Biology, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia ,grid.419385.20000 0004 0620 9905National Heart Research Institute Singapore, National Heart Centre, Singapore, Singapore
| | - Wenlong Cheng
- grid.1002.30000 0004 1936 7857Department of Chemical & Biological Engineering, Monash University, Clayton, VIC 3800 Australia ,grid.410660.5The Melbourne Centre for Nanofabrication, Clayton, VIC 3800 Australia
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Lee SG, Kim YJ, Son MY, Oh MS, Kim J, Ryu B, Kang KR, Baek J, Chung G, Woo DH, Kim CY, Chung HM. Generation of human iPSCs derived heart organoids structurally and functionally similar to heart. Biomaterials 2022; 290:121860. [DOI: 10.1016/j.biomaterials.2022.121860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 09/30/2022] [Accepted: 10/09/2022] [Indexed: 11/02/2022]
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Zhang F, Meier AB, Poch CM, Tian Q, Engelhardt S, Sinnecker D, Lipp P, Laugwitz KL, Moretti A, Dorn T. High-throughput optical action potential recordings in hiPSC-derived cardiomyocytes with a genetically encoded voltage indicator in the AAVS1 locus. Front Cell Dev Biol 2022; 10:1038867. [PMID: 36274846 PMCID: PMC9585323 DOI: 10.3389/fcell.2022.1038867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/26/2022] [Indexed: 11/22/2022] Open
Abstract
Cardiomyocytes (CMs) derived from human induced pluripotent stem cells (hiPSCs) represent an excellent in vitro model in cardiovascular research. Changes in their action potential (AP) dynamics convey information that is essential for disease modeling, drug screening and toxicity evaluation. High-throughput optical AP recordings utilizing intramolecular Förster resonance energy transfer (FRET) of the voltage-sensitive fluorescent protein (VSFP) have emerged as a substitute or complement to the resource-intensive patch clamp technique. Here, we functionally validated our recently generated voltage indicator hiPSC lines stably expressing CAG-promoter-driven VSFP in the AAVS1 safe harbor locus. By combining subtype-specific cardiomyocyte differentiation protocols, we established optical AP recordings in ventricular, atrial, and nodal CMs in 2D monolayers using fluorescence microscopy. Moreover, we achieved high-throughput optical AP measurements in single hiPSC-derived CMs in a 3D context. Overall, this system greatly expands the spectrum of possibilities for high-throughput, non-invasive and long-term AP analyses in cardiovascular research and drug discovery.
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Affiliation(s)
- Fangfang Zhang
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
| | - Anna B. Meier
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
| | - Christine M. Poch
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
| | - Qinghai Tian
- Molecular Cell Biology, Centre for Molecular Signaling (PZMS), Medical Faculty, Saarland University, Homburg, Germany
| | - Stefan Engelhardt
- Institute of Pharmacology and Toxicology, Technical University of Munich, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Daniel Sinnecker
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Peter Lipp
- Molecular Cell Biology, Centre for Molecular Signaling (PZMS), Medical Faculty, Saarland University, Homburg, Germany
| | - Karl-Ludwig Laugwitz
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Alessandra Moretti
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- *Correspondence: Alessandra Moretti, ; Tatjana Dorn,
| | - Tatjana Dorn
- First Department of Medicine, Cardiology, Klinikum rechts der Isar, Technical University of Munich, School of Medicine and Health, Munich, Germany
- *Correspondence: Alessandra Moretti, ; Tatjana Dorn,
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Kałużna E, Nadel A, Zimna A, Rozwadowska N, Kolanowski T. Modeling the human heart ex vivo-current possibilities and strive for future applications. J Tissue Eng Regen Med 2022; 16:853-874. [PMID: 35748158 PMCID: PMC9796015 DOI: 10.1002/term.3335] [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: 11/16/2021] [Revised: 04/20/2022] [Accepted: 06/03/2022] [Indexed: 12/30/2022]
Abstract
The high organ specification of the human heart is inversely proportional to its functional recovery after damage. The discovery of induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) has accelerated research in human heart regeneration and physiology. Nevertheless, due to the immaturity of iPSC-CMs, they are far from being an representative model of the adult heart physiology. Therefore, number of laboratories strive to obtain a heart tissues by engineering methods by structuring iPSC-CMs into complex and advanced platforms. By using the iPSC-CMs and arranging them in 3D cultures it is possible to obtain a human heart muscle with physiological capabilities potentially similar to the adult heart, while remaining in vitro. Here, we attempt to describe existing examples of heart muscle either in vitro or ex vivo models and discuss potential options for the further development of such structures. This will be a crucial step for ultimate derivation of complete heart tissue-mimicking organs and their future use in drug development, therapeutic approaches testing, pre-clinical studies, and clinical applications. This review particularly aims to compile available models of advanced human heart tissue for scientists considering which model would best fit their research needs.
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Affiliation(s)
- Ewelina Kałużna
- Institute of Human GeneticsPolish Academy of SciencesPoznanPoland
| | - Agnieszka Nadel
- Institute of Human GeneticsPolish Academy of SciencesPoznanPoland
| | - Agnieszka Zimna
- Institute of Human GeneticsPolish Academy of SciencesPoznanPoland
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Leowattana W, Leowattana T, Leowattana P. Human-induced pluripotent stem cell-atrial-specific cardiomyocytes and atrial fibrillation. World J Clin Cases 2022; 10:9588-9601. [PMID: 36186184 PMCID: PMC9516943 DOI: 10.12998/wjcc.v10.i27.9588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/22/2022] [Accepted: 08/16/2022] [Indexed: 02/05/2023] Open
Abstract
Patient-specific human-induced pluripotent stem cell-derived atrial cardiomyocytes (hiPSC-aCMs) may be produced, genome-edited, and differentiated into multiple cell types for regenerative medicine, disease modeling, drug testing, toxicity screening, and three-dimensional tissue fabrication. There is presently no complete model of atrial fibrillation (AF) available for studying human pharmacological responses and evaluating the toxicity of potential medication candidates. It has been demonstrated that hiPSC-aCMs can replicate the electrophysiological disease phenotype and genotype of AF. The hiPSC-aCMs, however, are immature and do not reflect the maturity of aCMs in the native myocardium. Numerous laboratories utilize a variety of methodologies and procedures to improve and promote aCM maturation, including electrical stimulation, culture duration, biophysical signals, and changes in metabolic variables. This review covers the current methods being explored for use in the maturation of patient-specific hiPSC-aCMs and their application towards a personalized approach to the pharmacologic therapy of AF.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
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A modern automated patch-clamp approach for high throughput electrophysiology recordings in native cardiomyocytes. Commun Biol 2022; 5:969. [PMID: 36109584 PMCID: PMC9477872 DOI: 10.1038/s42003-022-03871-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Crucial conventional patch-clamp approaches to investigate cellular electrophysiology suffer from low-throughput and require considerable experimenter expertise. Automated patch-clamp (APC) approaches are more experimenter independent and offer high-throughput, but by design are predominantly limited to assays containing small, homogenous cells. In order to enable high-throughput APC assays on larger cells such as native cardiomyocytes isolated from mammalian hearts, we employed a fixed-well APC plate format. A broad range of detailed electrophysiological parameters including action potential, L-type calcium current and basal inward rectifier current were reliably acquired from isolated swine atrial and ventricular cardiomyocytes using APC. Effective pharmacological modulation also indicated that this technique is applicable for drug screening using native cardiomyocyte material. Furthermore, sequential acquisition of multiple parameters from a single cell was successful in a high throughput format, substantially increasing data richness and quantity per experimental run. When appropriately expanded, these protocols will provide a foundation for effective mechanistic and phenotyping studies of human cardiac electrophysiology. Utilizing scarce biopsy samples, regular high throughput characterization of primary cardiomyocytes using APC will facilitate drug development initiatives and personalized treatment strategies for a multitude of cardiac diseases. An altered automated patch-clamp (APC) approach enables high-throughput recordings from native pig cardiomyocytes and human iPSC-derived cardiomyocytes.
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Yang D, Gomez-Garcia J, Funakoshi S, Tran T, Fernandes I, Bader GD, Laflamme MA, Keller GM. Modeling human multi-lineage heart field development with pluripotent stem cells. Cell Stem Cell 2022; 29:1382-1401.e8. [PMID: 36055193 DOI: 10.1016/j.stem.2022.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 07/01/2022] [Accepted: 08/11/2022] [Indexed: 12/27/2022]
Abstract
The cardiomyocyte (CM) subtypes in the mammalian heart derive from distinct lineages known as the first heart field (FHF), the anterior second heart field (aSHF), and the posterior second heart field (pSHF) lineages that are specified during gastrulation. We modeled human heart field development from human pluripotent stem cells (hPSCs) by using single-cell RNA-sequencing to delineate lineage specification and progression. Analyses of hPSC-derived and mouse mesoderm transcriptomes enabled the identification of distinct human FHF, aSHF, and pSHF mesoderm subpopulations. Through staged manipulation of signaling pathways identified from transcriptomics, we generated myocyte populations that display molecular characteristics of key CM subtypes. The developmental trajectory of the human cardiac lineages recapitulated that of the mouse, demonstrating conserved cardiovascular programs. These findings establish a comprehensive landscape of human embryonic cardiogenesis that provides access to a broad spectrum of cardiomyocytes for modeling congenital heart diseases and chamber-specific cardiomyopathies as well as for developing new therapies to treat them.
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Affiliation(s)
- Donghe Yang
- McEwen Stem Cell Institute, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
| | - Juliana Gomez-Garcia
- McEwen Stem Cell Institute, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Biomedical Engineering, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Shunsuke Funakoshi
- McEwen Stem Cell Institute, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Thinh Tran
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; The Donnelly Centre, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Ian Fernandes
- McEwen Stem Cell Institute, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Gary D Bader
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; The Donnelly Centre, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Michael A Laflamme
- McEwen Stem Cell Institute, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Gordon M Keller
- McEwen Stem Cell Institute, University Health Network, Toronto, ON M5G 1L7, Canada; Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
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Lyra-Leite DM, Gutiérrez-Gutiérrez Ó, Wang M, Zhou Y, Cyganek L, Burridge PW. A review of protocols for human iPSC culture, cardiac differentiation, subtype-specification, maturation, and direct reprogramming. STAR Protoc 2022; 3:101560. [PMID: 36035804 PMCID: PMC9405110 DOI: 10.1016/j.xpro.2022.101560] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The methods for the culture and cardiomyocyte differentiation of human embryonic stem cells, and later human induced pluripotent stem cells (hiPSC), have moved from a complex and uncontrolled systems to simplified and relatively robust protocols, using the knowledge and cues gathered at each step. HiPSC-derived cardiomyocytes have proven to be a useful tool in human disease modelling, drug discovery, developmental biology, and regenerative medicine. In this protocol review, we will highlight the evolution of protocols associated with hPSC culture, cardiomyocyte differentiation, sub-type specification, and cardiomyocyte maturation. We also discuss protocols for somatic cell direct reprogramming to cardiomyocyte-like cells.
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Affiliation(s)
- Davi M Lyra-Leite
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Óscar Gutiérrez-Gutiérrez
- Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Göttingen, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen, Germany
| | - Meimei Wang
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Yang Zhou
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Lukas Cyganek
- Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Göttingen, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen, Germany
| | - Paul W Burridge
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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50
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Biendarra‐Tiegs SM, Yechikov S, Shergill B, Brumback B, Takahashi K, Shirure VS, Gonzalez RE, Houshmand L, Zhong D, Weng K, Silva J, Smith TW, Rentschler SL, George SC. An iPS-derived in vitro model of human atrial conduction. Physiol Rep 2022; 10:e15407. [PMID: 36117385 PMCID: PMC9483613 DOI: 10.14814/phy2.15407] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/27/2022] [Accepted: 07/14/2022] [Indexed: 11/25/2022] Open
Abstract
Atrial fibrillation (AF) is the most common arrhythmia in the United States, affecting approximately 1 in 10 adults, and its prevalence is expected to rise as the population ages. Treatment options for AF are limited; moreover, the development of new treatments is hindered by limited (1) knowledge regarding human atrial electrophysiological endpoints (e.g., conduction velocity [CV]) and (2) accurate experimental models. Here, we measured the CV and refractory period, and subsequently calculated the conduction wavelength, in vivo (four subjects with AF and four controls), and ex vivo (atrial slices from human hearts). Then, we created an in vitro model of human atrial conduction using induced pluripotent stem (iPS) cells. This model consisted of iPS-derived human atrial cardiomyocytes plated onto a micropatterned linear 1D spiral design of Matrigel. The CV (34-41 cm/s) of the in vitro model was nearly five times faster than 2D controls (7-9 cm/s) and similar to in vivo (40-64 cm/s) and ex vivo (28-51 cm/s) measurements. Our iPS-derived in vitro model recapitulates key features of in vivo atrial conduction and may be a useful methodology to enhance our understanding of AF and model patient-specific disease.
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Affiliation(s)
| | - Sergey Yechikov
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
| | - Bhupinder Shergill
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
| | - Brittany Brumback
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
| | - Kentaro Takahashi
- Department of MedicineWashington University in St. LouisSt. LouisMissouriUSA
| | - Venktesh S. Shirure
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
| | - Ruth Estelle Gonzalez
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
| | - Laura Houshmand
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
| | - Denise Zhong
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
| | - Kuo‐Chan Weng
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
| | - Jon Silva
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
| | - Timothy W. Smith
- Department of MedicineWashington University in St. LouisSt. LouisMissouriUSA
| | - Stacey L. Rentschler
- Department of MedicineWashington University in St. LouisSt. LouisMissouriUSA
- Department of Developmental BiologyWashington University in St. LouisSt. LouisMissouriUSA
| | - Steven C. George
- Department of Biomedical EngineeringUniversity of California, DavisDavisCaliforniaUSA
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