1
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Brumback BD, Dmytrenko O, Robinson AN, Bailey AL, Ma P, Liu J, Hicks SC, Ng S, Li G, Zhang DM, Lipovsky CE, Lin CY, Diamond MS, Lavine KJ, Rentschler SL. Human Cardiac Pericytes Are Susceptible to SARS-CoV-2 Infection. JACC Basic Transl Sci 2023; 8:109-120. [PMID: 36124009 PMCID: PMC9473702 DOI: 10.1016/j.jacbts.2022.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 11/10/2022]
Abstract
COVID-19 is associated with serious cardiovascular complications, with incompletely understood mechanism(s). Pericytes have key functions in supporting endothelial cells and maintaining vascular integrity. We demonstrate that human cardiac pericytes are permissive to SARS-CoV-2 infection in organotypic slice and primary cell cultures. Viral entry into pericytes is mediated by endosomal proteases, and infection leads to up-regulation of inflammatory markers, vasoactive mediators, and nuclear factor kappa-B-dependent cell death. Furthermore, we present evidence of cardiac pericyte infection in COVID-19 myocarditis patients. These data demonstrate that human cardiac pericytes are susceptible to SARS-CoV-2 infection and suggest a role for pericyte infection in COVID-19.
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Affiliation(s)
- Brittany D. Brumback
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Oleksandr Dmytrenko
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Ashley N. Robinson
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Adam L. Bailey
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Pan Ma
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Jing Liu
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Stephanie C. Hicks
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Sherwin Ng
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Gang Li
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - David M. Zhang
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Catherine E. Lipovsky
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Chieh-Yu Lin
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Michael S. Diamond
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Medicine, Infectious Disease, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Kory J. Lavine
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Stacey L. Rentschler
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, Missouri, USA
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2
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Li G, Brumback BD, Huang L, Zhang DM, Yin T, Lipovsky CE, Hicks SC, Jimenez J, Boyle PM, Rentschler SL. Acute Glycogen Synthase Kinase-3 Inhibition Modulates Human Cardiac Conduction. JACC Basic Transl Sci 2022; 7:1001-1017. [PMID: 36337924 PMCID: PMC9626903 DOI: 10.1016/j.jacbts.2022.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 01/14/2023]
Abstract
Glycogen synthase kinase 3 (GSK-3) inhibition has emerged as a potential therapeutic target for several diseases, including cancer. However, the role for GSK-3 regulation of human cardiac electrophysiology remains ill-defined. We demonstrate that SB216763, a GSK-3 inhibitor, can acutely reduce conduction velocity in human cardiac slices. Combined computational modeling and experimental approaches provided mechanistic insight into GSK-3 inhibition-mediated changes, revealing that decreased sodium-channel conductance and tissue conductivity may underlie the observed phenotypes. Our study demonstrates that GSK-3 inhibition in human myocardium alters electrophysiology and may predispose to an arrhythmogenic substrate; therefore, monitoring for adverse arrhythmogenic events could be considered.
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Key Words
- ABC, active β-catenin
- APD, action potential duration
- BDM, 2,3-butanedione monoxime
- CV, conduction velocity
- Cx43, connexin 43
- GNa, sodium-channel conductance
- GOF, gain of function
- GSK-3 inhibitor
- GSK-3, glycogen synthase kinase 3
- INa, sodium current
- LV, left ventricle
- NaV1.5, pore-forming α-subunit protein of the voltage-gated cardiac sodium channel
- PCR, polymerase chain reaction
- RMP, resting membrane potential
- RT-qPCR, reverse transcription-quantitative polymerase chain reaction
- SB2, SB216763
- SB216763
- cDNA, complementary DNA
- dVm/dtmax, maximum upstroke velocity
- electrophysiology
- human cardiac slices
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Affiliation(s)
- Gang Li
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington University McKelvey School of Engineering in St. Louis, Missouri, USA
| | - Brittany D. Brumback
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington University McKelvey School of Engineering in St. Louis, Missouri, USA
| | - Lei Huang
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
| | - David M. Zhang
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
| | - Tiankai Yin
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
| | - Catherine E. Lipovsky
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, Missouri, USA
| | - Stephanie C. Hicks
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
| | - Jesus Jimenez
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
| | - Patrick M. Boyle
- Department of Bioengineering, Center for Cardiovascular Biology, and Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington, USA
| | - Stacey L. Rentschler
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine in St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington University McKelvey School of Engineering in St. Louis, Missouri, USA
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, Missouri, USA
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3
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Zhang DM, Navara R, Yin T, Szymanski J, Goldsztejn U, Kenkel C, Lang A, Mpoy C, Lipovsky CE, Qiao Y, Hicks S, Li G, Moore KMS, Bergom C, Rogers BE, Robinson CG, Cuculich PS, Schwarz JK, Rentschler SL. Cardiac radiotherapy induces electrical conduction reprogramming in the absence of transmural fibrosis. Nat Commun 2021; 12:5558. [PMID: 34561429 PMCID: PMC8463558 DOI: 10.1038/s41467-021-25730-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 08/25/2021] [Indexed: 02/08/2023] Open
Abstract
Cardiac radiotherapy (RT) may be effective in treating heart failure (HF) patients with refractory ventricular tachycardia (VT). The previously proposed mechanism of radiation-induced fibrosis does not explain the rapidity and magnitude with which VT reduction occurs clinically. Here, we demonstrate in hearts from RT patients that radiation does not achieve transmural fibrosis within the timeframe of VT reduction. Electrophysiologic assessment of irradiated murine hearts reveals a persistent supraphysiologic electrical phenotype, mediated by increases in NaV1.5 and Cx43. By sequencing and transgenic approaches, we identify Notch signaling as a mechanistic contributor to NaV1.5 upregulation after RT. Clinically, RT was associated with increased NaV1.5 expression in 1 of 1 explanted heart. On electrocardiogram (ECG), post-RT QRS durations were shortened in 13 of 19 patients and lengthened in 5 patients. Collectively, this study provides evidence for radiation-induced reprogramming of cardiac conduction as a potential treatment strategy for arrhythmia management in VT patients.
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Affiliation(s)
- David M. Zhang
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Rachita Navara
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Tiankai Yin
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Jeffrey Szymanski
- grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Uri Goldsztejn
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Biomedical Engineering, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Camryn Kenkel
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Biomedical Engineering, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Adam Lang
- grid.4367.60000 0001 2355 7002Department of Pathology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Cedric Mpoy
- grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Catherine E. Lipovsky
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Developmental Biology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Yun Qiao
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Biomedical Engineering, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Stephanie Hicks
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Gang Li
- grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Biomedical Engineering, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Kaitlin M. S. Moore
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Carmen Bergom
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Buck E. Rogers
- grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Clifford G. Robinson
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Phillip S. Cuculich
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Julie K. Schwarz
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Radiation Oncology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
| | - Stacey L. Rentschler
- grid.4367.60000 0001 2355 7002Center for Noninvasive Cardiac Radioablation, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Medicine, Cardiovascular Division, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Biomedical Engineering, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Developmental Biology, Washington University in St. Louis, School of Medicine, Saint Louis, MO USA
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4
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Lipovsky CE, Jimenez J, Guo Q, Li G, Yin T, Hicks SC, Bhatnagar S, Takahashi K, Zhang DM, Brumback BD, Goldsztejn U, Nadadur RD, Perez-Cervantez C, Moskowitz IP, Liu S, Zhang B, Rentschler SL. Chamber-specific transcriptional responses in atrial fibrillation. JCI Insight 2020; 5:135319. [PMID: 32841220 PMCID: PMC7526559 DOI: 10.1172/jci.insight.135319] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 08/19/2020] [Indexed: 12/30/2022] Open
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia, yet the molecular signature of the vulnerable atrial substrate is not well understood. Here, we delineated a distinct transcriptional signature in right versus left atrial cardiomyocytes (CMs) at baseline and identified chamber-specific gene expression changes in patients with a history of AF in the setting of end-stage heart failure (AF+HF) that are not present in heart failure alone (HF). We observed that human left atrial (LA) CMs exhibited Notch pathway activation and increased ploidy in AF+HF but not in HF alone. Transient activation of Notch signaling within adult CMs in a murine genetic model is sufficient to increase ploidy in both atrial chambers. Notch activation within LA CMs generated a transcriptomic fingerprint resembling AF, with dysregulation of transcription factor and ion channel genes, including Pitx2, Tbx5, Kcnh2, Kcnq1, and Kcnip2. Notch activation also produced distinct cellular electrophysiologic responses in LA versus right atrial CMs, prolonging the action potential duration (APD) without altering the upstroke velocity in the left atrium and reducing the maximal upstroke velocity without altering the APD in the right atrium. Our results support a shared human/murine model of increased Notch pathway activity predisposing to AF. Distinct transcriptional changes occur in human left versus right atrial cardiomyocytes in atrial fibrillation, including Notch pathway activation, which alters electric properties and ploidy in murine models.
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Affiliation(s)
- Catherine E Lipovsky
- Department of Medicine, Cardiovascular Division.,Department of Developmental Biology, and
| | | | - Qiusha Guo
- Department of Medicine, Cardiovascular Division
| | - Gang Li
- Department of Medicine, Cardiovascular Division.,Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Tiankai Yin
- Department of Medicine, Cardiovascular Division
| | | | - Somya Bhatnagar
- Department of Medicine, Cardiovascular Division.,Department of Developmental Biology, and
| | | | | | - Brittany D Brumback
- Department of Medicine, Cardiovascular Division.,Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Uri Goldsztejn
- Department of Medicine, Cardiovascular Division.,Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Rangarajan D Nadadur
- Departments of Pediatrics, Pathology, and Human Genetics, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA
| | - Carlos Perez-Cervantez
- Departments of Pediatrics, Pathology, and Human Genetics, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA
| | - Ivan P Moskowitz
- Departments of Pediatrics, Pathology, and Human Genetics, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA
| | | | - Bo Zhang
- Department of Developmental Biology, and
| | - Stacey L Rentschler
- Department of Medicine, Cardiovascular Division.,Department of Developmental Biology, and.,Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
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5
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Li G, Khandekar A, Yin T, Hicks SC, Guo Q, Takahashi K, Lipovsky CE, Brumback BD, Rao PK, Weinheimer CJ, Rentschler SL. Differential Wnt-mediated programming and arrhythmogenesis in right versus left ventricles. J Mol Cell Cardiol 2018; 123:92-107. [PMID: 30193957 DOI: 10.1016/j.yjmcc.2018.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 08/17/2018] [Accepted: 09/02/2018] [Indexed: 12/19/2022]
Abstract
Several inherited arrhythmias, including Brugada syndrome and arrhythmogenic cardiomyopathy, primarily affect the right ventricle and can lead to sudden cardiac death. Among many differences, right and left ventricular cardiomyocytes derive from distinct progenitors, prompting us to investigate how embryonic programming may contribute to chamber-specific conduction and arrhythmia susceptibility. Here, we show that developmental perturbation of Wnt signaling leads to chamber-specific transcriptional regulation of genes important in cardiac conduction that persists into adulthood. Transcriptional profiling of right versus left ventricles in mice deficient in Wnt transcriptional activity reveals global chamber differences, including genes regulating cardiac electrophysiology such as Gja1 and Scn5a. In addition, the transcriptional repressor Hey2, a gene associated with Brugada syndrome, is a direct target of Wnt signaling in the right ventricle only. These transcriptional changes lead to perturbed right ventricular cardiac conduction and cellular excitability. Ex vivo and in vivo stimulation of the right ventricle is sufficient to induce ventricular tachycardia in Wnt transcriptionally inactive hearts, while left ventricular stimulation has no effect. These data show that embryonic perturbation of Wnt signaling in cardiomyocytes leads to right ventricular arrhythmia susceptibility in the adult heart through chamber-specific regulation of genes regulating cellular electrophysiology.
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Affiliation(s)
- Gang Li
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Aditi Khandekar
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Tiankai Yin
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA; Department of Developmental Biology, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Stephanie C Hicks
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Qiusha Guo
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Kentaro Takahashi
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Catherine E Lipovsky
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA; Department of Developmental Biology, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Brittany D Brumback
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Praveen K Rao
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Carla J Weinheimer
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA
| | - Stacey L Rentschler
- Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA; Department of Developmental Biology, Washington University in St. Louis, 660 S Euclid Avenue, St. Louis, MO 63110, USA.
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6
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Lipovsky CE, Brumback BD, Khandekar A, Rentschler SL. Multi-Scale Assessments of Cardiac Electrophysiology Reveal Regional Heterogeneity in Health and Disease. J Cardiovasc Dev Dis 2018. [PMID: 29517992 PMCID: PMC5872364 DOI: 10.3390/jcdd5010016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The left and right ventricles of the four-chambered heart have distinct developmental origins and functions. Chamber-specific developmental programming underlies the differential gene expression of ion channel subunits regulating cardiac electrophysiology that persists into adulthood. Here, we discuss regional specific electrical responses to genetic mutations and cardiac stressors, their clinical correlations, and describe many of the multi-scale techniques commonly used to analyze electrophysiological regional heterogeneity.
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Affiliation(s)
- Catherine E Lipovsky
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, Campus Box 8103, 660 S Euclid Ave, St. Louis, MO 63110, USA.
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA.
| | - Brittany D Brumback
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, Campus Box 8103, 660 S Euclid Ave, St. Louis, MO 63110, USA.
- Department of Biomedical Engineering, Washington University, St. Louis, MO 63130, USA.
| | - Aditi Khandekar
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, Campus Box 8103, 660 S Euclid Ave, St. Louis, MO 63110, USA.
| | - Stacey L Rentschler
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, Campus Box 8103, 660 S Euclid Ave, St. Louis, MO 63110, USA.
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA.
- Department of Biomedical Engineering, Washington University, St. Louis, MO 63130, USA.
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