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Da’as SI, Hasan W, Salem R, Younes N, Abdelrahman D, Mohamed IA, Aldaalis A, Temanni R, Mathew LS, Lorenz S, Yacoub M, Nomikos M, Nasrallah GK, Fakhro KA. Transcriptome Profile Identifies Actin as an Essential Regulator of Cardiac Myosin Binding Protein C3 Hypertrophic Cardiomyopathy in a Zebrafish Model. Int J Mol Sci 2022; 23:ijms23168840. [PMID: 36012114 PMCID: PMC9408294 DOI: 10.3390/ijms23168840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/24/2022] [Accepted: 07/26/2022] [Indexed: 01/15/2023] Open
Abstract
Variants in cardiac myosin-binding protein C (cMyBP-C) are the leading cause of inherited hypertrophic cardiomyopathy (HCM), demonstrating the key role that cMyBP-C plays in the heart’s contractile machinery. To investigate the c-MYBPC3 HCM-related cardiac impairment, we generated a zebrafish mypbc3-knockout model. These knockout zebrafish displayed significant morphological heart alterations related to a significant decrease in ventricular and atrial diameters at systolic and diastolic states at the larval stages. Immunofluorescence staining revealed significant hyperplasia in the mutant’s total cardiac and ventricular cardiomyocytes. Although cardiac contractility was similar to the wild-type control, the ejection fraction was significantly increased in the mypbc3 mutants. At later stages of larval development, the mutants demonstrated an early cardiac phenotype of myocardium remodeling, concurrent cardiomyocyte hyperplasia, and increased ejection fraction as critical processes in HCM initiation to counteract the increased ventricular myocardial wall stress. The examination of zebrafish adults showed a thickened ventricular cardiac wall with reduced heart rate, swimming speed, and endurance ability in both the mypbc3 heterozygous and homozygous groups. Furthermore, heart transcriptome profiling showed a significant downregulation of the actin-filament-based process, indicating an impaired actin cytoskeleton organization as the main dysregulating factor associated with the early ventricular cardiac hypertrophy in the zebrafish mypbc3 HCM model.
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Affiliation(s)
- Sahar Isa Da’as
- Department of Human Genetics, Sidra Medicine, Doha P.O. Box 26999, Qatar
- Australian Regenerative Medicine Institute, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar
- Correspondence:
| | - Waseem Hasan
- Department of Human Genetics, Sidra Medicine, Doha P.O. Box 26999, Qatar
| | - Rola Salem
- Health Center, Qatar University, Doha P.O. Box 2713, Qatar
| | - Nadine Younes
- Department of Biomedical Sciences, College of Health Science, Member of QU Health, Qatar University, Doha P.O. Box 2713, Qatar
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
| | - Doua Abdelrahman
- Department of Human Genetics, Sidra Medicine, Doha P.O. Box 26999, Qatar
| | - Iman A. Mohamed
- Australian Regenerative Medicine Institute, Monash University, Melbourne 3168, Australia
| | - Arwa Aldaalis
- Australian Regenerative Medicine Institute, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar
| | - Ramzi Temanni
- Integrated Genomics Services, Sidra Medicine, Doha P.O. Box 26999, Qatar
| | - Lisa Sara Mathew
- Integrated Genomics Services, Sidra Medicine, Doha P.O. Box 26999, Qatar
| | - Stephan Lorenz
- Integrated Genomics Services, Sidra Medicine, Doha P.O. Box 26999, Qatar
| | | | - Michail Nomikos
- College of Medicine, Member of QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Gheyath K. Nasrallah
- Department of Biomedical Sciences, College of Health Science, Member of QU Health, Qatar University, Doha P.O. Box 2713, Qatar
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
| | - Khalid A. Fakhro
- Department of Human Genetics, Sidra Medicine, Doha P.O. Box 26999, Qatar
- Australian Regenerative Medicine Institute, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar
- Weill Cornell Medical College, Doha P.O. Box 24811, Qatar
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Shrivastava A, Haase T, Zeller T, Schulte C. Biomarkers for Heart Failure Prognosis: Proteins, Genetic Scores and Non-coding RNAs. Front Cardiovasc Med 2020; 7:601364. [PMID: 33330662 PMCID: PMC7719677 DOI: 10.3389/fcvm.2020.601364] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
Heart failure (HF) is a complex disease in which cardiomyocyte injury leads to a cascade of inflammatory and fibrosis pathway activation, thereby causing decrease in cardiac function. As a result, several biomolecules are released which can be identified easily in circulating body fluids. The complex biological processes involved in the development and worsening of HF require an early treatment strategy to stop deterioration of cardiac function. Circulating biomarkers provide not only an ideal platform to detect subclinical changes, their clinical application also offers the opportunity to monitor disease treatment. Many of these biomarkers can be quantified with high sensitivity; allowing their clinical application to be evaluated beyond diagnostic purposes as potential tools for HF prognosis. Though the field of biomarkers is dominated by protein molecules, non-coding RNAs (microRNAs, long non-coding RNAs, and circular RNAs) are novel and promising biomarker candidates that encompass several ideal characteristics required in the biomarker field. The application of genetic biomarkers as genetic risk scores in disease prognosis, albeit in its infancy, holds promise to improve disease risk estimation. Despite the multitude of biomarkers that have been available and identified, the majority of novel biomarker candidates are not cardiac-specific, and instead may simply be a readout of systemic inflammation or other pathological processes. Thus, the true value of novel biomarker candidates in HF prognostication remains unclear. In this article, we discuss the current state of application of protein, genetic as well as non-coding RNA biomarkers in HF risk prognosis.
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Affiliation(s)
- Apurva Shrivastava
- Clinic for Cardiology, University Heart and Vascular Center, University Medical Center Eppendorf, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Luebeck, University Medical Center Eppendorf, Hamburg, Germany
| | - Tina Haase
- Clinic for Cardiology, University Heart and Vascular Center, University Medical Center Eppendorf, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Luebeck, University Medical Center Eppendorf, Hamburg, Germany
| | - Tanja Zeller
- Clinic for Cardiology, University Heart and Vascular Center, University Medical Center Eppendorf, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Luebeck, University Medical Center Eppendorf, Hamburg, Germany
| | - Christian Schulte
- Clinic for Cardiology, University Heart and Vascular Center, University Medical Center Eppendorf, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Luebeck, University Medical Center Eppendorf, Hamburg, Germany.,King's British Heart Foundation Centre, King's College London, London, United Kingdom
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3
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Interaction between cardiac myosin-binding protein C and formin Fhod3. Proc Natl Acad Sci U S A 2018; 115:E4386-E4395. [PMID: 29686099 DOI: 10.1073/pnas.1716498115] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Mutations in cardiac myosin-binding protein C (cMyBP-C) are a major cause of familial hypertrophic cardiomyopathy. Although cMyBP-C has been considered to regulate the cardiac function via cross-bridge arrangement at the C-zone of the myosin-containing A-band, the mechanism by which cMyBP-C functions remains unclear. We identified formin Fhod3, an actin organizer essential for the formation and maintenance of cardiac sarcomeres, as a cMyBP-C-binding protein. The cardiac-specific N-terminal Ig-like domain of cMyBP-C directly interacts with the cardiac-specific N-terminal region of Fhod3. The interaction seems to direct the localization of Fhod3 to the C-zone, since a noncardiac Fhod3 variant lacking the cMyBP-C-binding region failed to localize to the C-zone. Conversely, the cardiac variant of Fhod3 failed to localize to the C-zone in the cMyBP-C-null mice, which display a phenotype of hypertrophic cardiomyopathy. The cardiomyopathic phenotype of cMyBP-C-null mice was further exacerbated by Fhod3 overexpression with a defect of sarcomere integrity, whereas that was partially ameliorated by a reduction in the Fhod3 protein levels, suggesting that Fhod3 has a deleterious effect on cardiac function under cMyBP-C-null conditions where Fhod3 is aberrantly mislocalized. Together, these findings suggest the possibility that Fhod3 contributes to the pathogenesis of cMyBP-C-related cardiomyopathy and that Fhod3 is critically involved in cMyBP-C-mediated regulation of cardiac function via direct interaction.
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Wang L, Geist J, Grogan A, Hu LYR, Kontrogianni-Konstantopoulos A. Thick Filament Protein Network, Functions, and Disease Association. Compr Physiol 2018; 8:631-709. [PMID: 29687901 PMCID: PMC6404781 DOI: 10.1002/cphy.c170023] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sarcomeres consist of highly ordered arrays of thick myosin and thin actin filaments along with accessory proteins. Thick filaments occupy the center of sarcomeres where they partially overlap with thin filaments. The sliding of thick filaments past thin filaments is a highly regulated process that occurs in an ATP-dependent manner driving muscle contraction. In addition to myosin that makes up the backbone of the thick filament, four other proteins which are intimately bound to the thick filament, myosin binding protein-C, titin, myomesin, and obscurin play important structural and regulatory roles. Consistent with this, mutations in the respective genes have been associated with idiopathic and congenital forms of skeletal and cardiac myopathies. In this review, we aim to summarize our current knowledge on the molecular structure, subcellular localization, interacting partners, function, modulation via posttranslational modifications, and disease involvement of these five major proteins that comprise the thick filament of striated muscle cells. © 2018 American Physiological Society. Compr Physiol 8:631-709, 2018.
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Affiliation(s)
- Li Wang
- Department of Biochemistry and Molecular Biology, University of Maryland, Baltimore, Maryland, USA
| | - Janelle Geist
- Department of Biochemistry and Molecular Biology, University of Maryland, Baltimore, Maryland, USA
| | - Alyssa Grogan
- Department of Biochemistry and Molecular Biology, University of Maryland, Baltimore, Maryland, USA
| | - Li-Yen R. Hu
- Department of Biochemistry and Molecular Biology, University of Maryland, Baltimore, Maryland, USA
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Mahdieh N, Hosseini Moghaddam M, Motavaf M, Rabbani A, Soveizi M, Maleki M, Rabbani B, Alizadeh-Asl A. Genotypic effect of a mutation of the MYBPC3 gene and two phenotypes with different patterns of inheritance. J Clin Lab Anal 2018; 32:e22419. [PMID: 29493010 DOI: 10.1002/jcla.22419] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 02/03/2018] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND MYBPC3 mutations have been described in dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM). A mutation, c.3373G>A, has been reported to cause autosomal recessive form of HCM. Here, we report that this mutation can cause autosomal dominant form of DCM. METHODS Next-generation sequencing using targeted panel of a total of 23 candidate genes and following Sanger sequencing was applied to detect causal mutations of DCM. Computational analyses were also performed using available software tools. In silico structural and functional analyses including protein modeling and prediction were done for the mutated MYBPC3 protein. RESULTS AND CONCLUSION Targeted sequencing showed one variant c.3373G>A (p.Val1125Met) in the studied family following autosomal dominant inheritance. Computational programs predicted a high score of pathogenicity. Secondary structure of the region surrounding p.Val1125 was changed to a shortened beta-strand based on prediction of I-TASSER and Phyre2 servers with high confidence value for the mutation. cMyBP-C protein was modeled to 3dmkA. Our findings suggest that one single mutation of MYBPC3 may have different effects on the cellular mechanisms based of its zygosity. Various factors might be considered for explaining this phenomenon. This gene may have an important role in Iranian DCM and HCM patients.
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Affiliation(s)
- Nejat Mahdieh
- Cardiogenetics Research Laboratory, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Hosseini Moghaddam
- Cardiogenetics Research Laboratory, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahsa Motavaf
- Faculty of Biological Science, Department of Molecular Genetics, Tarbiat Modares University, Tehran, Iran
| | - Ahmad Rabbani
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdieh Soveizi
- Cardiogenetics Research Laboratory, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Maleki
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Bahareh Rabbani
- Cardiogenetics Research Laboratory, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Azin Alizadeh-Asl
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Mohamed IA, Krishnamoorthy NT, Nasrallah GK, Da'as SI. The Role of Cardiac Myosin Binding Protein C3 in Hypertrophic Cardiomyopathy-Progress and Novel Therapeutic Opportunities. J Cell Physiol 2017; 232:1650-1659. [PMID: 27731493 DOI: 10.1002/jcp.25639] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 10/07/2016] [Indexed: 11/11/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) is a common autosomal dominant genetic cardiovascular disorder marked by genetic and phenotypic heterogeneity. Mutations in the gene encodes the cardiac myosin-binding protein C, cMYBPC3 is amongst the various sarcomeric genes that are associated with HCM. These mutations produce mutated mRNAs and truncated cMyBP-C proteins. In this review, we will discuss the implications and molecular mechanisms involved in MYBPC3 different mutations. Further, we will highlight the novel targets that can be developed into potential therapeutics for the treatment of HMC. J. Cell. Physiol. 232: 1650-1659, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Iman A Mohamed
- Department of Biomedical Science, Zewail City of Science and Technology, Giza, Egypt
| | - Navaneethakrishnan T Krishnamoorthy
- Division of Experimental Genetics, Sidra Medical and Research Center, Doha, Qatar.,Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | - Gheyath K Nasrallah
- Department of Biomedical Science, College of Health Science, Qatar University, Doha, Qatar.,Biomedical Research Center, Qatar University, Doha, Qatar
| | - Sahar I Da'as
- Division of Experimental Genetics, Sidra Medical and Research Center, Doha, Qatar.,Department of Biomedical and Biological Sciences, Hamad Bin Khalifa University, Doha, Qatar
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Li M, Andersson-Lendahl M, Sejersen T, Arner A. Knockdown of fast skeletal myosin-binding protein C in zebrafish results in a severe skeletal myopathy. ACTA ACUST UNITED AC 2016; 147:309-22. [PMID: 27022191 PMCID: PMC4810067 DOI: 10.1085/jgp.201511452] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 02/26/2016] [Indexed: 12/30/2022]
Abstract
MyBPC: A muscle protein for all seasons. Myosin-binding protein C (MyBPC) in the muscle sarcomere interacts with several contractile and structural proteins. Mutations in the cardiac isoform (MyBPC-3) in humans, or animal knockout, are associated with cardiomyopathy. Function of the fast skeletal isoform (MyBPC-2) in living muscles is less understood. This question was addressed using zebrafish models, combining gene expression data with functional analysis of contractility and small-angle x-ray diffraction measurements of filament structure. Fast skeletal MyBPC-2B, the major isoform, was knocked down by >50% using morpholino antisense nucleotides. These morphants exhibited a skeletal myopathy with elevated apoptosis and up-regulation of factors associated with muscle protein degradation. Morphant muscles had shorter sarcomeres with a broader length distribution, shorter actin filaments, and a wider interfilament spacing compared with controls, suggesting that fast skeletal MyBPC has a role in sarcomere assembly. Active force was reduced more than expected from the decrease in muscle size, suggesting that MyBPC-2 is required for optimal force generation at the cross-bridge level. The maximal shortening velocity was significantly increased in the MyBPC-2 morphants, but when related to the sarcomere length, the difference was smaller, reflecting that the decrease in MyBPC-2B content and the resulting myopathy were accompanied by only a minor influence on filament shortening kinetics. In the controls, equatorial patterns from small-angle x-ray scattering revealed that comparatively few cross-bridges are attached (as evaluated by the intensity ratio of the 11 and 10 equatorial reflections) during active contraction. X-ray scattering data from relaxed and contracting morphants were not significantly different from those in controls. However, the increase in the 11:10 intensity ratio in rigor was lower compared with that in controls, possibly reflecting effects of MyBPC on the cross-bridge interactions. In conclusion, lack of MyBPC-2 results in a severe skeletal myopathy with structural changes and muscle weakness.
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Affiliation(s)
- Mei Li
- Department of Physiology and Pharmacology, Department of Cell and Molecular Biology, and Department of Women's and Children's Health, Karolinska Institutet, SE 171 77 Stockholm, Sweden
| | - Monika Andersson-Lendahl
- Department of Physiology and Pharmacology, Department of Cell and Molecular Biology, and Department of Women's and Children's Health, Karolinska Institutet, SE 171 77 Stockholm, Sweden
| | - Thomas Sejersen
- Department of Physiology and Pharmacology, Department of Cell and Molecular Biology, and Department of Women's and Children's Health, Karolinska Institutet, SE 171 77 Stockholm, Sweden
| | - Anders Arner
- Department of Physiology and Pharmacology, Department of Cell and Molecular Biology, and Department of Women's and Children's Health, Karolinska Institutet, SE 171 77 Stockholm, Sweden
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8
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Krishnamoorthy N, Gajendrarao P, Olivotto I, Yacoub M. Impact of disease-causing mutations on inter-domain interactions in cMyBP-C: a steered molecular dynamics study. J Biomol Struct Dyn 2016; 35:1916-1922. [DOI: 10.1080/07391102.2016.1199329] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Navaneethakrishnan Krishnamoorthy
- Qatar Cardiovascular Research Centre, Qatar Foundation, Doha, Qatar
- Division of Experimental Genetics, Sidra Medical and Research Centre, Doha, Qatar
- Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | - Poornima Gajendrarao
- Qatar Cardiovascular Research Centre, Qatar Foundation, Doha, Qatar
- Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | - Iacopo Olivotto
- Referral Centre for Myocardial Diseases, Careggi University Hospital, Florence, Italy
| | - Magdi Yacoub
- Qatar Cardiovascular Research Centre, Qatar Foundation, Doha, Qatar
- Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, UK
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Taylor EN, Hoffman MP, Barefield DY, Aninwene GE, Abrishamchi AD, Lynch TL, Govindan S, Osinska H, Robbins J, Sadayappan S, Gilbert RJ. Alterations in Multi-Scale Cardiac Architecture in Association With Phosphorylation of Myosin Binding Protein-C. J Am Heart Assoc 2016; 5:e002836. [PMID: 27068630 PMCID: PMC4943261 DOI: 10.1161/jaha.115.002836] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Background The geometric organization of myocytes in the ventricular wall comprises the structural underpinnings of cardiac mechanical function. Cardiac myosin binding protein‐C (MYBPC3) is a sarcomeric protein, for which phosphorylation modulates myofilament binding, sarcomere morphology, and myocyte alignment in the ventricular wall. To elucidate the mechanisms by which MYBPC3 phospho‐regulation affects cardiac tissue organization, we studied ventricular myoarchitecture using generalized Q‐space imaging (GQI). GQI assessed geometric phenotype in excised hearts that had undergone transgenic (TG) modification of phospho‐regulatory serine sites to nonphosphorylatable alanines (MYBPC3AllP−/(t/t)) or phospho‐mimetic aspartic acids (MYBPC3AllP+/(t/t)). Methods and Results Myoarchitecture in the wild‐type (MYBPC3WT) left‐ventricle (LV) varied with transmural position, with helix angles ranging from −90/+90 degrees and contiguous circular orientation from the LV mid‐myocardium to the right ventricle (RV). Whereas MYBPC3AllP+/(t/t) hearts were not architecturally distinct from MYBPC3WT, MYBPC3AllP−/(t/t) hearts demonstrated a significant reduction in LV transmural helicity. Null MYBPC3(t/t) hearts, as constituted by a truncated MYBPC3 protein, demonstrated global architectural disarray and loss in helicity. Electron microscopy was performed to correlate the observed macroscopic architectural changes with sarcomere ultrastructure and demonstrated that impaired phosphorylation of MYBPC3 resulted in modifications of the sarcomere aspect ratio and shear angle. The mechanical effect of helicity loss was assessed through a geometric model relating cardiac work to ejection fraction, confirming the mechanical impairments observed with echocardiography. Conclusions We conclude that phosphorylation of MYBPC3 contributes to the genesis of ventricular wall geometry, linking myofilament biology with multiscale cardiac mechanics and myoarchitecture.
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Affiliation(s)
- Erik N Taylor
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA
| | - Matthew P Hoffman
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA
| | - David Y Barefield
- Health Sciences Division, Department of Cell and Molecular Physiology, Loyola University of Chicago, Maywood, IL
| | - George E Aninwene
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA
| | - Aurash D Abrishamchi
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA
| | - Thomas L Lynch
- Health Sciences Division, Department of Cell and Molecular Physiology, Loyola University of Chicago, Maywood, IL
| | - Suresh Govindan
- Health Sciences Division, Department of Cell and Molecular Physiology, Loyola University of Chicago, Maywood, IL
| | - Hanna Osinska
- Division of Molecular Cardiovascular Biology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Jeffrey Robbins
- Division of Molecular Cardiovascular Biology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Sakthivel Sadayappan
- Health Sciences Division, Department of Cell and Molecular Physiology, Loyola University of Chicago, Maywood, IL
| | - Richard J Gilbert
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA
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