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Lotakis DM, Dheer R, Dame MK, Cuttitta AJ, Tigani DJ, Spence JR, Young VB, Ralls MW. A Pilot Study: Transcriptional Profiling, Functional Analysis, and Organoid Modeling of Intestinal Mucosa in Hirschsprung Disease. J Pediatr Surg 2023; 58:1164-1169. [PMID: 36922279 DOI: 10.1016/j.jpedsurg.2023.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023]
Abstract
BACKGROUND Hirschsprung disease (HSCR) is a congenital colonic aganglionosis. Many HSCR patients develop enterocolitis despite surgical resection. The pathophysiology of this inflammatory process is poorly understood. We compared transcriptional profiles and function of ganglionic and aganglionic tissue in HSCR patients. METHODS RNA sequencing was performed on mucosal tissues from HSCR patients (n = 6) and controls (n = 3). Function of matched ganglionic and aganglionic regions were investigated utilizing organoids generated from these tissues. RESULTS Transcriptional differences observed in ganglionic and aganglionic regions of HSCR patients included upregulation of genes involving inflammation, cell differentiation and proliferation as well as decreased expression of genes encoding mucins compared to controls. Organoids derived from ganglionic and aganglionic regions of HSCR patients were similar in epithelial cell differentiation, epithelial barrier formation and response to stimulation with bacterial metabolites and pro-inflammatory cytokines. CONCLUSIONS Despite normal ganglionic structure, the section of colon adjacent to the aganglionic region in HSCR patients has perturbed gene expression which resembles the aganglionic segment. Transcriptional and functional changes in colonic epithelium are persevered in the ganglionic colon used for pull-through surgery. This may explain persistence of enterocolitis despite surgical excision of aganglionic colon and subsequent endorectal pull-through performed with ganglionic colon during correction of HSCR. LEVEL OF EVIDENCE N/A.
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Affiliation(s)
- Dimitra M Lotakis
- University of Michigan, Department of Surgery, Division of Pediatric Surgery, 1540 East Hospital Drive, Ann Arbor, MI, 48109-4211, USA.
| | - Rishu Dheer
- University of Michigan, Department of Internal Medicine, Division of Infectious Disease, Ann Arbor, MI, 48109, USA
| | - Michael K Dame
- University of Michigan, Department of Internal Medicine, Division of Gastroenterology, Ann Arbor, MI, 48109, USA
| | - Ashley J Cuttitta
- University of Michigan, Department of Internal Medicine, Division of Gastroenterology, Ann Arbor, MI, 48109, USA
| | - Dominic J Tigani
- University of Michigan, Department of Internal Medicine, Division of Gastroenterology, Ann Arbor, MI, 48109, USA
| | - Jason R Spence
- University of Michigan, Department of Internal Medicine, Division of Gastroenterology, Ann Arbor, MI, 48109, USA; University of Michigan Medical School, Department of Cell and Developmental Biology, Ann Arbor, MI, 48109, USA; University of Michigan Medical School, Department of Biomedical Engineering Medicine, Ann Arbor, MI, 48109, USA
| | - Vincent B Young
- University of Michigan, Department of Internal Medicine, Division of Infectious Disease, Ann Arbor, MI, 48109, USA; University of Michigan, Department of Microbiology & Immunology, Ann Arbor, MI, 48109, USA
| | - Matthew W Ralls
- University of Michigan, Department of Surgery, Division of Pediatric Surgery, 1540 East Hospital Drive, Ann Arbor, MI, 48109-4211, USA
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2
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Ferrer-Torres D, Wu JH, Zhang CJ, Hammer MA, Dame MK, Wu A, Holloway EM, Karpoff K, McCarthy CL, Bohm MS, Cuttitta AJ, Tigani DJ, Huang S, Tsai YH, Miller AJ, Walker T, Bayer DE, Hogan SP, Turgeon DK, Lin J, Higgins PDR, Sexton J, Spence JR. Mapping the adult human esophagus in vivo and in vitro. Development 2022; 149:dev200614. [PMID: 36278875 PMCID: PMC9720751 DOI: 10.1242/dev.200614] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 07/20/2022] [Indexed: 10/22/2023]
Abstract
Many esophageal diseases can arise during development or throughout life. Therefore, well-characterized in vitro models and detailed methods are essential for studying human esophageal development, homeostasis and disease. Here, we (1) create an atlas of the cell types observed in the normal adult human esophagus; (2) establish an ancestrally diverse biobank of in vitro esophagus tissue to interrogate homeostasis and injury; and (3) benchmark in vitro models using the adult human esophagus atlas. We created a single-cell RNA sequencing reference atlas using fresh adult esophagus biopsies and a continuously expanding biobank of patient-derived in vitro cultures (n=55 lines). We identify and validate several transcriptionally distinct cell classes in the native human adult esophagus, with four populations belonging to the epithelial layer, including basal, epibasal, early differentiating and terminally differentiated luminal cells. Benchmarking in vitro esophagus cultures to the in vivo reference using single-cell RNA sequencing shows that the basal stem cells are robustly maintained in vitro, and the diversity of epithelial cell types in culture is dependent on cell density. We also demonstrate that cultures can be grown in 2D or as 3D organoids, and these methods can be employed for modeling the complete epithelial layers, thereby enabling in vitro modeling of the human adult esophagus.
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Affiliation(s)
- Daysha Ferrer-Torres
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Center for Cell Plasticity and Organ Design, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Joshua H. Wu
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Charles J. Zhang
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Max A. Hammer
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Michael K. Dame
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Angeline Wu
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Emily M. Holloway
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Kateryna Karpoff
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Caroline L. McCarthy
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Margaret S. Bohm
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ashley J. Cuttitta
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Dominic J. Tigani
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Sha Huang
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yu-Hwai Tsai
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Alyssa J. Miller
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Taylor Walker
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - David E. Bayer
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Simon P. Hogan
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Danielle Kim Turgeon
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jules Lin
- Department of Thoracic Surgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Peter D. R. Higgins
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jonathan Sexton
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
- U-M Center for Drug Repurposing, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jason R. Spence
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Center for Cell Plasticity and Organ Design, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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3
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Jimenez-Vazquez EN, Arad M, Macías Á, Vera-Pedrosa ML, Cruz FM, Gutierrez LK, Cuttitta AJ, Monteiro da Rocha A, Herron TJ, Ponce-Balbuena D, Guerrero-Serna G, Binah O, Michele DE, Jalife J. SNTA1 gene rescues ion channel function and is antiarrhythmic in cardiomyocytes derived from induced pluripotent stem cells from muscular dystrophy patients. eLife 2022; 11:e76576. [PMID: 35762211 PMCID: PMC9239678 DOI: 10.7554/elife.76576] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/07/2022] [Indexed: 01/10/2023] Open
Abstract
Background Patients with cardiomyopathy of Duchenne Muscular Dystrophy (DMD) are at risk of developing life-threatening arrhythmias, but the mechanisms are unknown. We aimed to determine the role of ion channels controlling cardiac excitability in the mechanisms of arrhythmias in DMD patients. Methods To test whether dystrophin mutations lead to defective cardiac NaV1.5-Kir2.1 channelosomes and arrhythmias, we generated iPSC-CMs from two hemizygous DMD males, a heterozygous female, and two unrelated control males. We conducted studies including confocal microscopy, protein expression analysis, patch-clamping, non-viral piggy-bac gene expression, optical mapping and contractility assays. Results Two patients had abnormal ECGs with frequent runs of ventricular tachycardia. iPSC-CMs from all DMD patients showed abnormal action potential profiles, slowed conduction velocities, and reduced sodium (INa) and inward rectifier potassium (IK1) currents. Membrane NaV1.5 and Kir2.1 protein levels were reduced in hemizygous DMD iPSC-CMs but not in heterozygous iPSC-CMs. Remarkably, transfecting just one component of the dystrophin protein complex (α1-syntrophin) in hemizygous iPSC-CMs from one patient restored channelosome function, INa and IK1 densities, and action potential profile in single cells. In addition, α1-syntrophin expression restored impulse conduction and contractility and prevented reentrant arrhythmias in hiPSC-CM monolayers. Conclusions We provide the first demonstration that iPSC-CMs reprogrammed from skin fibroblasts of DMD patients with cardiomyopathy have a dysfunction of the NaV1.5-Kir2.1 channelosome, with consequent reduction of cardiac excitability and conduction. Altogether, iPSC-CMs from patients with DMD cardiomyopathy have a NaV1.5-Kir2.1 channelosome dysfunction, which can be rescued by the scaffolding protein α1-syntrophin to restore excitability and prevent arrhythmias. Funding Supported by National Institutes of Health R01 HL122352 grant; 'la Caixa' Banking Foundation (HR18-00304); Fundación La Marató TV3: Ayudas a la investigación en enfermedades raras 2020 (LA MARATO-2020); Instituto de Salud Carlos III/FEDER/FSE; Horizon 2020 - Research and Innovation Framework Programme GA-965286 to JJ; the CNIC is supported by the Instituto de Salud Carlos III (ISCIII), the Ministerio de Ciencia e Innovación (MCIN) and the Pro CNIC Foundation), and is a Severo Ochoa Center of Excellence (grant CEX2020-001041-S funded by MICIN/AEI/10.13039/501100011033). American Heart Association postdoctoral fellowship 19POST34380706s to JVEN. Israel Science Foundation to OB and MA [824/19]. Rappaport grant [01012020RI]; and Niedersachsen Foundation [ZN3452] to OB; US-Israel Binational Science Foundation (BSF) to OB and TH [2019039]; Dr. Bernard Lublin Donation to OB; and The Duchenne Parent Project Netherlands (DPPNL 2029771) to OB. National Institutes of Health R01 AR068428 to DM and US-Israel Binational Science Foundation Grant [2013032] to DM and OB.
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Affiliation(s)
- Eric N Jimenez-Vazquez
- Department of Internal Medicine and Molecular and Integrative Physiology, Center for Arrhythmia Research, University of MichiganAnn ArborUnited States
| | - Michael Arad
- Leviev Heart Center, Sheba Medical Center, Tel Hashomer, and Tel Aviv UniversityTel AvivIsrael
| | - Álvaro Macías
- Centro Nacional de Investigaciones Cardiovasculares (CNIC) Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV)MadridSpain
| | - Maria L Vera-Pedrosa
- Centro Nacional de Investigaciones Cardiovasculares (CNIC) Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV)MadridSpain
| | - Francisco Miguel Cruz
- Centro Nacional de Investigaciones Cardiovasculares (CNIC) Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV)MadridSpain
| | - Lilian K Gutierrez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC) Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV)MadridSpain
| | - Ashley J Cuttitta
- Department of Molecular and Integrative Physiology, University of Michigan Medical SchoolAnn ArborUnited States
| | - André Monteiro da Rocha
- Department of Internal Medicine and Molecular and Integrative Physiology, Center for Arrhythmia Research, University of MichiganAnn ArborUnited States
| | - Todd J Herron
- Department of Internal Medicine and Molecular and Integrative Physiology, Center for Arrhythmia Research, University of MichiganAnn ArborUnited States
| | - Daniela Ponce-Balbuena
- Department of Internal Medicine and Molecular and Integrative Physiology, Center for Arrhythmia Research, University of MichiganAnn ArborUnited States
| | - Guadalupe Guerrero-Serna
- Department of Internal Medicine and Molecular and Integrative Physiology, Center for Arrhythmia Research, University of MichiganAnn ArborUnited States
| | - Ofer Binah
- Department of Physiology, Biophysics and Systems Biology, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of TechnologyHaifaIsrael
| | - Daniel E Michele
- Department of Molecular and Integrative Physiology, University of Michigan Medical SchoolAnn ArborUnited States
| | - José Jalife
- Department of Internal Medicine and Molecular and Integrative Physiology, Center for Arrhythmia Research, University of MichiganAnn ArborUnited States
- Centro Nacional de Investigaciones Cardiovasculares (CNIC) Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV)MadridSpain
- Department of Molecular and Integrative Physiology, University of Michigan Medical SchoolAnn ArborUnited States
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4
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Garbincius JF, Merz LE, Cuttitta AJ, Bayne KV, Schrade S, Armstead EA, Converso-Baran KL, Whitesall SE, D'Alecy LG, Michele DE. Enhanced dimethylarginine degradation improves coronary flow reserve and exercise tolerance in Duchenne muscular dystrophy carrier mice. Am J Physiol Heart Circ Physiol 2020; 319:H582-H603. [PMID: 32762558 DOI: 10.1152/ajpheart.00333.2019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Duchenne muscular dystrophy (DMD) is an X-linked disease caused by null mutations in dystrophin and characterized by muscle degeneration. Cardiomyopathy is common and often prevalent at similar frequency in female DMD carriers irrespective of whether they manifest skeletal muscle disease. Impaired muscle nitric oxide (NO) production in DMD disrupts muscle blood flow regulation and exaggerates postexercise fatigue. We show that circulating levels of endogenous methylated arginines including asymmetric dimethylarginine (ADMA), which act as NO synthase inhibitors, are elevated by acute necrotic muscle damage and in chronically necrotic dystrophin-deficient mice. We therefore hypothesized that excessive ADMA impairs muscle NO production and diminishes exercise tolerance in DMD. We used transgenic expression of dimethylarginine dimethylaminohydrolase 1 (DDAH), which degrades methylated arginines, to investigate their contribution to exercise-induced fatigue in DMD. Although infusion of exogenous ADMA was sufficient to impair exercise performance in wild-type mice, transgenic DDAH expression did not rescue exercise-induced fatigue in dystrophin-deficient male mdx mice. Surprisingly, DDAH transgene expression did attenuate exercise-induced fatigue in dystrophin-heterozygous female mdx carrier mice. Improved exercise tolerance was associated with reduced heart weight and improved cardiac β-adrenergic responsiveness in DDAH-transgenic mdx carriers. We conclude that DDAH overexpression increases exercise tolerance in female DMD carriers, possibly by limiting cardiac pathology and preserving the heart's responses to changes in physiological demand. Methylated arginine metabolism may be a new target to improve exercise tolerance and cardiac function in DMD carriers or act as an adjuvant to promote NO signaling alongside therapies that partially restore dystrophin expression in patients with DMD.NEW & NOTEWORTHY Duchenne muscular dystrophy (DMD) carriers are at risk for cardiomyopathy. The nitric oxide synthase inhibitor asymmetric dimethylarginine (ADMA) is released from damaged muscle in DMD and impairs exercise performance. Transgenic expression of dimethylarginine dimethylaminohydrolase to degrade ADMA prevents cardiac hypertrophy, improves cardiac function, and improves exercise tolerance in DMD carrier mice. These findings highlight the relevance of ADMA to muscular dystrophy and have important implications for therapies targeting nitric oxide in patients with DMD and DMD carriers.
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Affiliation(s)
- Joanne F Garbincius
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Lauren E Merz
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Ashley J Cuttitta
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Kaitlynn V Bayne
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Sara Schrade
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Emily A Armstead
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | | | - Steven E Whitesall
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan.,Physiology Phenotyping Core, University of Michigan, Ann Arbor, Michigan
| | - Louis G D'Alecy
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan.,Physiology Phenotyping Core, University of Michigan, Ann Arbor, Michigan
| | - Daniel E Michele
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan.,Physiology Phenotyping Core, University of Michigan, Ann Arbor, Michigan.,Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
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5
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Naylor MT, Thrasher PD, Cuttitta AJ, Michele DE. Subsarcolemmal Cytoskeleton In Dysferlin‐Mediated Muscle Membrane Repair. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.868.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Molly T. Naylor
- Cellular and Molecular BiologyUniversity of MichiganAnn ArborMI
| | | | | | - Daniel E. Michele
- Cellular and Molecular BiologyUniversity of MichiganAnn ArborMI
- Molecular & Integrative PhysiologyUniversity of MichiganAnn ArborMI
- Department of Internal MedicineUniversity of MichiganAnn ArborMI
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6
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Eisen B, Ben Jehuda R, Cuttitta AJ, Mekies LN, Shemer Y, Baskin P, Reiter I, Willi L, Freimark D, Gherghiceanu M, Monserrat L, Scherr M, Hilfiker-Kleiner D, Arad M, Michele DE, Binah O. Electrophysiological abnormalities in induced pluripotent stem cell-derived cardiomyocytes generated from Duchenne muscular dystrophy patients. J Cell Mol Med 2019; 23:2125-2135. [PMID: 30618214 PMCID: PMC6378185 DOI: 10.1111/jcmm.14124] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 12/02/2018] [Accepted: 12/05/2018] [Indexed: 01/09/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is an X‐linked progressive muscle degenerative disease, caused by mutations in the dystrophin gene and resulting in death because of respiratory or cardiac failure. To investigate the cardiac cellular manifestation of DMD, we generated induced pluripotent stem cells (iPSCs) and iPSC‐derived cardiomyocytes (iPSC‐CMs) from two DMD patients: a male and female manifesting heterozygous carrier. Dystrophin mRNA and protein expression were analysed by qRT‐PCR, RNAseq, Western blot and immunofluorescence staining. For comprehensive electrophysiological analysis, current and voltage clamp were used to record transmembrane action potentials and ion currents, respectively. Microelectrode array was used to record extracellular electrograms. X‐inactive specific transcript (XIST) and dystrophin expression analyses revealed that female iPSCs underwent X chromosome reactivation (XCR) or erosion of X chromosome inactivation, which was maintained in female iPSC‐CMs displaying mixed X chromosome expression of wild type (WT) and mutated alleles. Both DMD female and male iPSC‐CMs presented low spontaneous firing rate, arrhythmias and prolonged action potential duration. DMD female iPSC‐CMs displayed increased beat rate variability (BRV). DMD male iPSC‐CMs manifested decreased If density, and DMD female and male iPSC‐CMs showed increased ICa,L density. Our findings demonstrate cellular mechanisms underlying electrophysiological abnormalities and cardiac arrhythmias in DMD.
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Affiliation(s)
- Binyamin Eisen
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Ronen Ben Jehuda
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.,Department of Biotechnology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Ashley J Cuttitta
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Lucy N Mekies
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Yuval Shemer
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Polina Baskin
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Irina Reiter
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Lubna Willi
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Dov Freimark
- Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | | | - Michaela Scherr
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | | | - Michael Arad
- Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Daniel E Michele
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Ofer Binah
- Department of Physiology, Biophysics and Systems Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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7
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Eisen B, Ben Jehuda R, Cuttitta AJ, Mekies LN, Reiter I, Ramchandren S, Arad M, Michele DE, Binah O. Generation of Duchenne muscular dystrophy patient-specific induced pluripotent stem cell line lacking exons 45-50 of the dystrophin gene (IITi001-A). Stem Cell Res 2018; 29:111-114. [PMID: 29653394 DOI: 10.1016/j.scr.2018.03.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/20/2018] [Accepted: 03/29/2018] [Indexed: 10/17/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is an X-linked progressive muscle degenerative disease caused by mutations in the dystrophin gene. We generated induced pluripotent stem cells (iPSCs) from a 13-year-old male patient carrying a deletion mutation of exons 45-50; iPSCs were subsequently differentiated into cardiomyocytes. iPSCs exhibit expression of the pluripotent markers (SOX2, NANOG, OCT4), differentiation capacity into the three germ layers, normal karyotype, genetic identity to the skin biopsy dermal fibroblasts and the patient-specific dystrophin mutation.
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Affiliation(s)
- Binyamin Eisen
- Department of Physiology, Biophysics and Systems Biology, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Ronen Ben Jehuda
- Department of Physiology, Biophysics and Systems Biology, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel; Department of Biotechnology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Ashley J Cuttitta
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Lucy N Mekies
- Department of Physiology, Biophysics and Systems Biology, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Irina Reiter
- Department of Physiology, Biophysics and Systems Biology, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Sindhu Ramchandren
- Department of Neurology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Michael Arad
- Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Daniel E Michele
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Ofer Binah
- Department of Physiology, Biophysics and Systems Biology, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
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8
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Homa LD, Burger LL, Cuttitta AJ, Michele DE, Moenter SM. Voluntary Exercise Improves Estrous Cyclicity in Prenatally Androgenized Female Mice Despite Programming Decreased Voluntary Exercise: Implications for Polycystic Ovary Syndrome (PCOS). Endocrinology 2015; 156:4618-28. [PMID: 26360506 PMCID: PMC4655213 DOI: 10.1210/en.2015-1593] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Prenatal androgen (PNA) exposure in mice produces a phenotype resembling lean polycystic ovary syndrome. We studied effects of voluntary exercise on metabolic and reproductive parameters in PNA vs vehicle (VEH)-treated mice. Mice (8 wk of age) were housed individually and estrous cycles monitored. At 10 weeks of age, mice were divided into groups (PNA, PNA-run, VEH, VEH-run, n = 8-9/group); those in the running groups received wheels allowing voluntary running. Unexpectedly, PNA mice ran less distance than VEH mice; ovariectomy eliminated this difference. In ovary-intact mice, there was no difference in glucose tolerance, lower limb muscle fiber types, weight, or body composition among groups after 16 weeks of running, although some mitochondrial proteins were mildly up-regulated by exercise in PNA mice. Before running, estrous cycles in PNA mice were disrupted with most days in diestrus. There was no change in cycles during weeks 1-6 of running (10-15 wk of age). In contrast, from weeks 11 to 16 of running, cycles in PNA mice improved with more days in proestrus and estrus and fewer in diestrus. PNA programs reduced voluntary exercise, perhaps mediated in part by ovarian secretions. Exercise without weight loss improved estrous cycles, which if translated could be important for fertility in and counseling of lean women with polycystic ovary syndrome.
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Affiliation(s)
- Lori D Homa
- Departments of Obstetrics and Gynecology (L.D.H., S.M.M.), Molecular and Integrative Physiology (L.L.B., A.J.C., D.E.M., S.M.M.), and Internal Medicine (D.E.M., S.M.M.), University of Michigan, Ann Arbor, Michigan 48109-5622
| | - Laura L Burger
- Departments of Obstetrics and Gynecology (L.D.H., S.M.M.), Molecular and Integrative Physiology (L.L.B., A.J.C., D.E.M., S.M.M.), and Internal Medicine (D.E.M., S.M.M.), University of Michigan, Ann Arbor, Michigan 48109-5622
| | - Ashley J Cuttitta
- Departments of Obstetrics and Gynecology (L.D.H., S.M.M.), Molecular and Integrative Physiology (L.L.B., A.J.C., D.E.M., S.M.M.), and Internal Medicine (D.E.M., S.M.M.), University of Michigan, Ann Arbor, Michigan 48109-5622
| | - Daniel E Michele
- Departments of Obstetrics and Gynecology (L.D.H., S.M.M.), Molecular and Integrative Physiology (L.L.B., A.J.C., D.E.M., S.M.M.), and Internal Medicine (D.E.M., S.M.M.), University of Michigan, Ann Arbor, Michigan 48109-5622
| | - Suzanne M Moenter
- Departments of Obstetrics and Gynecology (L.D.H., S.M.M.), Molecular and Integrative Physiology (L.L.B., A.J.C., D.E.M., S.M.M.), and Internal Medicine (D.E.M., S.M.M.), University of Michigan, Ann Arbor, Michigan 48109-5622
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