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Padmanaban P, van Galen D, Salehi-Nik N, Zakharova M, Segerink L, Rouwkema J. Switching to external flows: perturbations of developing vasculature within chicken chorioallantoic membrane. LAB ON A CHIP 2024; 24:3233-3242. [PMID: 38835278 PMCID: PMC11198391 DOI: 10.1039/d4lc00311j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 05/04/2024] [Indexed: 06/06/2024]
Abstract
The impact of fluid flow shear stresses, generated by the movement of blood through vasculature, on the organization and maturation of vessels is widely recognized. Nevertheless, it remains uncertain whether external fluid flows outside of the vasculature in the surrounding tissue can similarly play a role in governing these processes. In this research, we introduce an innovative technique called superfusion-induced vascular steering (SIVS). SIVS involves the controlled imposition of external fluid flow patterns onto the vascularized chick chorioallantoic membrane (CAM), allowing us to observe how this impacts the organization of vascular networks. To investigate the concept of SIVS, we conducted superfusion experiments on the intact chick CAM cultured within an engineered eggshell system, using phosphate buffered saline (PBS). To capture and analyze the effects of superfusion, we employed a custom-built microscopy setup, enabling us to image both superfused and non-superfused regions within the developing CAM. This study provides valuable insights into the practical application of fluid superfusion within an in vivo context, shedding light on its significance for understanding tissue development and manipulation in an engineering setting.
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Affiliation(s)
- Prasanna Padmanaban
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Center, Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands.
| | - Danny van Galen
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Center, Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands.
| | - Nasim Salehi-Nik
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Center, Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands.
| | - Mariia Zakharova
- BIOS Lab on Chip group, MESA+ Institute for Nanotechnology, Technical Medical Center, Max Planck Institute for Complex Fluid Dynamics, University of Twente, Enschede, The Netherlands
| | - Loes Segerink
- BIOS Lab on Chip group, MESA+ Institute for Nanotechnology, Technical Medical Center, Max Planck Institute for Complex Fluid Dynamics, University of Twente, Enschede, The Netherlands
| | - Jeroen Rouwkema
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Center, Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands.
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2
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Singh A, Bhatt KS, Nguyen HC, Frisbee JC, Singh KK. Endothelial-to-Mesenchymal Transition in Cardiovascular Pathophysiology. Int J Mol Sci 2024; 25:6180. [PMID: 38892367 PMCID: PMC11173124 DOI: 10.3390/ijms25116180] [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: 05/10/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Under different pathophysiological conditions, endothelial cells lose endothelial phenotype and gain mesenchymal cell-like phenotype via a process known as endothelial-to-mesenchymal transition (EndMT). At the molecular level, endothelial cells lose the expression of endothelial cell-specific markers such as CD31/platelet-endothelial cell adhesion molecule, von Willebrand factor, and vascular-endothelial cadherin and gain the expression of mesenchymal cell markers such as α-smooth muscle actin, N-cadherin, vimentin, fibroblast specific protein-1, and collagens. EndMT is induced by numerous different pathways triggered and modulated by multiple different and often redundant mechanisms in a context-dependent manner depending on the pathophysiological status of the cell. EndMT plays an essential role in embryonic development, particularly in atrioventricular valve development; however, EndMT is also implicated in the pathogenesis of several genetically determined and acquired diseases, including malignant, cardiovascular, inflammatory, and fibrotic disorders. Among cardiovascular diseases, aberrant EndMT is reported in atherosclerosis, pulmonary hypertension, valvular disease, fibroelastosis, and cardiac fibrosis. Accordingly, understanding the mechanisms behind the cause and/or effect of EndMT to eventually target EndMT appears to be a promising strategy for treating aberrant EndMT-associated diseases. However, this approach is limited by a lack of precise functional and molecular pathways, causes and/or effects, and a lack of robust animal models and human data about EndMT in different diseases. Here, we review different mechanisms in EndMT and the role of EndMT in various cardiovascular diseases.
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Affiliation(s)
- Aman Singh
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada; (A.S.); (K.S.B.); (H.C.N.); (J.C.F.)
| | - Kriti S. Bhatt
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada; (A.S.); (K.S.B.); (H.C.N.); (J.C.F.)
| | - Hien C. Nguyen
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada; (A.S.); (K.S.B.); (H.C.N.); (J.C.F.)
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada
| | - Jefferson C. Frisbee
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada; (A.S.); (K.S.B.); (H.C.N.); (J.C.F.)
| | - Krishna K. Singh
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada; (A.S.); (K.S.B.); (H.C.N.); (J.C.F.)
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada
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3
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He J, Blazeski A, Nilanthi U, Menéndez J, Pirani SC, Levic DS, Bagnat M, Singh MK, Raya JG, García-Cardeña G, Torres-Vázquez J. Plxnd1-mediated mechanosensing of blood flow controls the caliber of the Dorsal Aorta via the transcription factor Klf2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.24.576555. [PMID: 38328196 PMCID: PMC10849625 DOI: 10.1101/2024.01.24.576555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The cardiovascular system generates and responds to mechanical forces. The heartbeat pumps blood through a network of vascular tubes, which adjust their caliber in response to the hemodynamic environment. However, how endothelial cells in the developing vascular system integrate inputs from circulatory forces into signaling pathways to define vessel caliber is poorly understood. Using vertebrate embryos and in vitro-assembled microvascular networks of human endothelial cells as models, flow and genetic manipulations, and custom software, we reveal that Plexin-D1, an endothelial Semaphorin receptor critical for angiogenic guidance, employs its mechanosensing activity to serve as a crucial positive regulator of the Dorsal Aorta's (DA) caliber. We also uncover that the flow-responsive transcription factor KLF2 acts as a paramount mechanosensitive effector of Plexin-D1 that enlarges endothelial cells to widen the vessel. These findings illuminate the molecular and cellular mechanisms orchestrating the interplay between cardiovascular development and hemodynamic forces.
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Affiliation(s)
- Jia He
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Adriana Blazeski
- Center for Excellence in Vascular Biology, Department of Pathology, Brigham and Women’s Hospital, Boston, MA, USA and Harvard Medical School, Boston, MA, USA
- Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Uthayanan Nilanthi
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, 8 College Road, Singapore, 169857
| | - Javier Menéndez
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Samuel C. Pirani
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Daniel S. Levic
- Department of Cell Biology, Duke University, Durham, NC 27710, USA
| | - Michel Bagnat
- Department of Cell Biology, Duke University, Durham, NC 27710, USA
| | - Manvendra K. Singh
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, 8 College Road, Singapore, 169857
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609
| | - José G Raya
- Department of Radiology, New York University School of Medicine, New York, NY 10016, USA
| | - Guillermo García-Cardeña
- Center for Excellence in Vascular Biology, Department of Pathology, Brigham and Women’s Hospital, Boston, MA, USA and Harvard Medical School, Boston, MA, USA
- Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jesús Torres-Vázquez
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
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Espina JA, Cordeiro MH, Milivojevic M, Pajić-Lijaković I, Barriga EH. Response of cells and tissues to shear stress. J Cell Sci 2023; 136:jcs260985. [PMID: 37747423 PMCID: PMC10560560 DOI: 10.1242/jcs.260985] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023] Open
Abstract
Shear stress is essential for normal physiology and malignancy. Common physiological processes - such as blood flow, particle flow in the gut, or contact between migratory cell clusters and their substrate - produce shear stress that can have an impact on the behavior of different tissues. In addition, shear stress has roles in processes of biomedical interest, such as wound healing, cancer and fibrosis induced by soft implants. Thus, understanding how cells react and adapt to shear stress is important. In this Review, we discuss in vivo and in vitro data obtained from vascular and epithelial models; highlight the insights these have afforded regarding the general mechanisms through which cells sense, transduce and respond to shear stress at the cellular levels; and outline how the changes cells experience in response to shear stress impact tissue organization. Finally, we discuss the role of shear stress in collective cell migration, which is only starting to be appreciated. We review our current understanding of the effects of shear stress in the context of embryo development, cancer and fibrosis, and invite the scientific community to further investigate the role of shear stress in these scenarios.
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Affiliation(s)
- Jaime A. Espina
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), 2780-156 Oeiras, Portugal
| | - Marilia H. Cordeiro
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), 2780-156 Oeiras, Portugal
| | - Milan Milivojevic
- Faculty of Technology and Metallurgy, Belgrade University, 11120 Belgrade, Serbia
| | | | - Elias H. Barriga
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), 2780-156 Oeiras, Portugal
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Gómez O, Nogué L, Soveral I, Guirado L, Izquierdo N, Pérez-Cruz M, Masoller N, Escobar MC, Sanchez-de-Toledo J, Martínez-Crespo JM, Bennasar M, Crispi F. Cord blood cardiovascular biomarkers in tetralogy of fallot and D-transposition of great arteries. Front Pediatr 2023; 11:1151814. [PMID: 37187588 PMCID: PMC10175815 DOI: 10.3389/fped.2023.1151814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
Previous reports suggest that cord blood biomarkers could serve as a prognostic tool for conotruncal congenital heart defects (CHD). We aimed to describe the cord blood profile of different cardiovascular biomarkers in a prospective series of fetuses with tetralogy of Fallot (ToF) and D-transposition of great arteries (D-TGA) and to explore their correlation with fetal echocardiography and perinatal outcome. Methods A prospective cohort study (2014-2019), including fetuses with isolated ToF and D-TGA and healthy controls, was conducted at two tertiary referral centers for CHD in Barcelona. Obstetric ultrasound and fetal echocardiography were performed in the third trimester and cord blood was obtained at delivery. Cord blood concentrations of N-terminal precursor of B-type natriuretic peptide, Troponin I, transforming growth factorβ (TGFβ), placental growth factor, and soluble fms-like tyrosine kinase-1 were determined. Results Thirty-four fetuses with conotruncal-CHD (22 ToF and 12 D-TGA) and 36 controls were included. ToF-fetuses showed markedly increased cord blood TGFβ (24.9 ng/ml (15.6-45.3) vs. normal heart 15.7 ng/ml (7.2-24.3) vs. D-TGA 12.6 ng/ml (8.7-37.9); P = 0.012). These results remained statistically significant even after adjusting for maternal body mass index, birth weight and mode of delivery. TGFß levels showed a negative correlation with the pulmonary valve diameter z-score at fetal echocardiography (r = -0.576, P = 0.039). No other differences were found in the rest of cord blood biomarkers among the study populations. Likewise, no other significant correlations were identified between cardiovascular biomarkers, fetal echocardiography and perinatal outcome. Conclusions This study newly describes increased cord blood TGFβ concentrations in ToF compared to D-TGA and normal fetuses. We also demonstrate that TGFβ levels correlate with the severity of right ventricle outflow obstruction. These novel findings open a window of research opportunities on new prognostic and potential preventive strategies.
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Affiliation(s)
- Olga Gómez
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
- Fetal Medicine Department, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
- Correspondence: Olga Gómez
| | - Laura Nogué
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Iris Soveral
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- Department of Obstetrics, Hospital General de Hospitalet, Barcelona, Spain
| | - Laura Guirado
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
| | - Nora Izquierdo
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
| | - Miriam Pérez-Cruz
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- Sant Joan de Déu Research Institute (IRSJD), Barcelona, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network, Carlos III Health Institute, Madrid, Spain
| | - Narcís Masoller
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - María Clara Escobar
- Sant Joan de Déu Research Institute (IRSJD), Barcelona, Spain
- Pediatric Cardiology Department, Sant Joan de Déu Hospital, Esplugues de Llobregat, Barcelona, Spain
| | - Joan Sanchez-de-Toledo
- Sant Joan de Déu Research Institute (IRSJD), Barcelona, Spain
- Pediatric Cardiology Department, Sant Joan de Déu Hospital, Esplugues de Llobregat, Barcelona, Spain
| | - Josep Maria Martínez-Crespo
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
- Fetal Medicine Department, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - Mar Bennasar
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Fàtima Crispi
- BCNatal Fetal Medicine Research Center, Sant Joan de Déu Hospital, Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
- Fetal Medicine Department, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
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Nappi F, Giacinto O, Lusini M, Garo M, Caponio C, Nenna A, Nappi P, Rousseau J, Spadaccio C, Chello M. Patients with Bicuspid Aortopathy and Aortic Dilatation. J Clin Med 2022; 11:jcm11206002. [PMID: 36294323 PMCID: PMC9605389 DOI: 10.3390/jcm11206002] [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: 08/20/2022] [Revised: 09/20/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Bicuspid aortic valve (BAV) is the most frequent congenital cardiac disease. Alteration of ascending aorta diameter is a consequence of shear stress alterations due to haemodynamic abnormalities developed from inadequate valve cusp coaptation. (2) Objective: This narrative review aims to discuss anatomical, pathophysiological, genetical, ultrasound, and radiological aspects of BAV disease, focusing on BAV classification related to imaging patterns and flux models involved in the onset and developing vessel dilatation. (3) Methods: A comprehensive search strategy was implemented in PubMed from January to May 2022. English language articles were selected independently by two authors and screened according to the following criteria. (4) Key Contents and Findings: Ultrasound scan is the primary step in the diagnostic flowchart identifying structural and doppler patterns of the valve. Computed tomography determines aortic vessel dimensions according to the anatomo-pathology of the valve. Magnetic resonance identifies hemodynamic alterations. New classifications and surgical indications derive from these diagnostic features. Currently, indications correlate morphological results, dissection risk factors, and genetic alterations. Surgical options vary from aortic valve and aortic vessel substitution to aortic valve repair according to the morphology of the valve. In selected patients, transcatheter aortic valve replacement has an even more impact on the treatment choice. (5) Conclusions: Different imaging approaches are an essential part of BAV diagnosis. Morphological classifications influence the surgical outcome.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France
- Correspondence: ; Tel.: +33-1-4933-4104; Fax: +33-1-4933-4119
| | - Omar Giacinto
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
| | - Mario Lusini
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
| | - Marialuisa Garo
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
| | - Claudio Caponio
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
| | - Antonio Nenna
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
| | - Pierluigi Nappi
- Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy
| | - Juliette Rousseau
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France
| | - Cristiano Spadaccio
- Department of Cardiac Surgery, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02115, USA
| | - Massimo Chello
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
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Trinidad F, Rubonal F, Rodriguez de Castro I, Pirzadeh I, Gerrah R, Kheradvar A, Rugonyi S. Effect of Blood Flow on Cardiac Morphogenesis and Formation of Congenital Heart Defects. J Cardiovasc Dev Dis 2022; 9:jcdd9090303. [PMID: 36135448 PMCID: PMC9503889 DOI: 10.3390/jcdd9090303] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022] Open
Abstract
Congenital heart disease (CHD) affects about 1 in 100 newborns and its causes are multifactorial. In the embryo, blood flow within the heart and vasculature is essential for proper heart development, with abnormal blood flow leading to CHD. Here, we discuss how blood flow (hemodynamics) affects heart development from embryonic to fetal stages, and how abnormal blood flow solely can lead to CHD. We emphasize studies performed using avian models of heart development, because those models allow for hemodynamic interventions, in vivo imaging, and follow up, while they closely recapitulate heart defects observed in humans. We conclude with recommendations on investigations that must be performed to bridge the gaps in understanding how blood flow alone, or together with other factors, contributes to CHD.
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Affiliation(s)
- Fernando Trinidad
- Biomedical Engineering Department, University of California, Irvine, CA 92697, USA
| | - Floyd Rubonal
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97239, USA
| | | | - Ida Pirzadeh
- Biomedical Engineering Department, University of California, Irvine, CA 92697, USA
| | - Rabin Gerrah
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA
| | - Arash Kheradvar
- Biomedical Engineering Department, University of California, Irvine, CA 92697, USA
| | - Sandra Rugonyi
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97239, USA
- Correspondence:
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Djenoune L, Berg K, Brueckner M, Yuan S. A change of heart: new roles for cilia in cardiac development and disease. Nat Rev Cardiol 2022; 19:211-227. [PMID: 34862511 PMCID: PMC10161238 DOI: 10.1038/s41569-021-00635-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2021] [Indexed: 12/27/2022]
Abstract
Although cardiac abnormalities have been observed in a growing class of human disorders caused by defective primary cilia, the function of cilia in the heart remains an underexplored area. The primary function of cilia in the heart was long thought to be restricted to left-right axis patterning during embryogenesis. However, new findings have revealed broad roles for cilia in congenital heart disease, valvulogenesis, myocardial fibrosis and regeneration, and mechanosensation. In this Review, we describe advances in our understanding of the mechanisms by which cilia function contributes to cardiac left-right axis development and discuss the latest findings that highlight a broader role for cilia in cardiac development. Specifically, we examine the growing line of evidence connecting cilia function to the pathogenesis of congenital heart disease. Furthermore, we also highlight research from the past 10 years demonstrating the role of cilia function in common cardiac valve disorders, including mitral valve prolapse and aortic valve disease, and describe findings that implicate cardiac cilia in mechanosensation potentially linking haemodynamic and contractile forces with genetic regulation of cardiac development and function. Finally, given the presence of cilia on cardiac fibroblasts, we also explore the potential role of cilia in fibrotic growth and summarize the evidence implicating cardiac cilia in heart regeneration.
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Affiliation(s)
- Lydia Djenoune
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kathryn Berg
- Department of Paediatrics, Yale University School of Medicine, New Haven, CT, USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - Martina Brueckner
- Department of Paediatrics, Yale University School of Medicine, New Haven, CT, USA.
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA.
| | - Shiaulou Yuan
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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Point on the Aortic Bicuspid Valve. Life (Basel) 2022; 12:life12040518. [PMID: 35455009 PMCID: PMC9029119 DOI: 10.3390/life12040518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/28/2022] [Accepted: 03/09/2022] [Indexed: 12/21/2022] Open
Abstract
Background—Bicuspid aortic valve (BAV) disease is the most prevalent congenital heart disease in the world. Knowledge about its subtypes origin, development, and evolution is poor despite the frequency and the potential gravity of this condition. Its prognosis mostly depends on the risk of aortic aneurysm development with an increased risk of aortic dissection. Aims—This review aims to describe this complex pathology in way to improve the bicuspid patients’ management. Study design—We reviewed the literature with MEDLINE and EMBASE databases using MeSH terms such as “bicuspid aortic valve”, “ascending aorta”, and “bicuspid classification”. Results—There are various classifications. They depend on the criteria chosen by the authors to differentiate subtypes. Those criteria can be the number and position of the raphes, the cusps, the commissures, or their arrangements regarding coronary ostia. Sievers’ classification is the reference. The phenotypic description of embryology revealed that all subtypes of BAV are the results of different embryological pathogenesis, and therefore, should be considered as distinct conditions. Their common development towards aortic dilatation is explained by the aortic media’s pathological histology with cystic medial necrosis. At the opposite, BAV seems to display a profound genetic heterogeneity with both sporadic and familial forms. BAV can be even isolated or combined with other congenital malformations. Conclusions—All those characteristics make this pathology a highly complex condition that needs further genetic, embryological, and hemodynamic explorations to complete its well described anatomy.
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10
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Siddiqui HB, Dogru S, Lashkarinia SS, Pekkan K. Soft-Tissue Material Properties and Mechanogenetics during Cardiovascular Development. J Cardiovasc Dev Dis 2022; 9:jcdd9020064. [PMID: 35200717 PMCID: PMC8876703 DOI: 10.3390/jcdd9020064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/22/2022] [Accepted: 01/28/2022] [Indexed: 12/17/2022] Open
Abstract
During embryonic development, changes in the cardiovascular microstructure and material properties are essential for an integrated biomechanical understanding. This knowledge also enables realistic predictive computational tools, specifically targeting the formation of congenital heart defects. Material characterization of cardiovascular embryonic tissue at consequent embryonic stages is critical to understand growth, remodeling, and hemodynamic functions. Two biomechanical loading modes, which are wall shear stress and blood pressure, are associated with distinct molecular pathways and govern vascular morphology through microstructural remodeling. Dynamic embryonic tissues have complex signaling networks integrated with mechanical factors such as stress, strain, and stiffness. While the multiscale interplay between the mechanical loading modes and microstructural changes has been studied in animal models, mechanical characterization of early embryonic cardiovascular tissue is challenging due to the miniature sample sizes and active/passive vascular components. Accordingly, this comparative review focuses on the embryonic material characterization of developing cardiovascular systems and attempts to classify it for different species and embryonic timepoints. Key cardiovascular components including the great vessels, ventricles, heart valves, and the umbilical cord arteries are covered. A state-of-the-art review of experimental techniques for embryonic material characterization is provided along with the two novel methods developed to measure the residual and von Mises stress distributions in avian embryonic vessels noninvasively, for the first time in the literature. As attempted in this review, the compilation of embryonic mechanical properties will also contribute to our understanding of the mature cardiovascular system and possibly lead to new microstructural and genetic interventions to correct abnormal development.
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Affiliation(s)
- Hummaira Banu Siddiqui
- Department of Mechanical Engineering, Koc University, Istanbul 34450, Turkey; (H.B.S.); (S.D.); (S.S.L.)
| | - Sedat Dogru
- Department of Mechanical Engineering, Koc University, Istanbul 34450, Turkey; (H.B.S.); (S.D.); (S.S.L.)
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Seyedeh Samaneh Lashkarinia
- Department of Mechanical Engineering, Koc University, Istanbul 34450, Turkey; (H.B.S.); (S.D.); (S.S.L.)
- Department of Bioengineering, Imperial College London, London SW7 2BX, UK
| | - Kerem Pekkan
- Department of Mechanical Engineering, Koc University, Istanbul 34450, Turkey; (H.B.S.); (S.D.); (S.S.L.)
- Correspondence: ; Tel.: +90-(533)-356-3595
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A first glimpse into the transcriptomic changes induced by the PaV1 infection in the gut of Caribbean spiny lobsters, Panulirus argus (Latreille, 1804) (Decapoda: Achelata: Palinuridae). Virus Res 2022; 311:198713. [PMID: 35176328 DOI: 10.1016/j.virusres.2022.198713] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/19/2022] [Accepted: 02/13/2022] [Indexed: 12/13/2022]
Abstract
The Caribbean spiny lobster, Panulirus argus (Latreille, 1804) supports important fisheries in the Caribbean region. This species is affected by a deadly virus, Panulirus argus Virus 1 (PaV1), the only known pathogenic virus for this species. As infection progresses, the effects of PaV1 on its host become systemic, with far reaching impacts on the host's physiology, including structural injuries to its gastrointestinal organs, such as the hepatopancreas and the gut. This last one becomes highly compromised in the last stages of infection. Since the gut is a key organ for the physiological stability of lobsters, we compared the transcriptomic changes in the gut of juvenile individuals of Panulirus argus naturally infected with PaV1. In the RNA-Seq analysis, we obtained a total of 485 × 106 raw reads. After cleaning, reads were de novo assembled into 68,842 transcripts and 50,257 unigenes. The length of unigenes ranged from 201 bp to 28,717 bp, with a N50 length of 2079, and a GC content of 40.61%. In the differential gene expression analysis, we identified a total of 3,405 non redundant differential transcripts, of which 1,920 were up-regulated and 1,485 were down-regulated. We found alterations in transcripts encoding for proteins involved in transcriptional regulation, splicing, postraductional regulation, protein signaling, transmembrane transport, cytoskeletal regulation, and proteolysis, among others. This is the first insight into the transcriptomic regulation of PaV1-P. argus interaction. The information generated can help to unravel the molecular mechanisms that may intervene in the gut during PaV1 infection.
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12
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Hypoplastic left heart syndrome (HLHS): molecular pathogenesis and emerging drug targets for cardiac repair and regeneration. Expert Opin Ther Targets 2021; 25:621-632. [PMID: 34488532 DOI: 10.1080/14728222.2021.1978069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Hypoplastic left heart syndrome (HLHS) is a severe developmental defect characterized by the underdevelopment of the left ventricle along with aortic and valvular defects. Multiple palliative surgeries are required for survival. Emerging studies have identified potential mechanisms for the disease onset, including genetic and hemodynamic causes. Genetic variants associated with HLHS include transcription factors, chromatin remodelers, structural proteins, and signaling proteins necessary for normal heart development. Nonetheless, current therapies are being tested clinically and have shown promising results at improving cardiac function in patients who have undergone palliative surgeries. AREAS COVERED We searched PubMed and clinicaltrials.gov to review most of the mechanistic research and clinical trials involving HLHS. This review discusses the anatomy and pathology of HLHS hearts. We highlight some of the identified genetic variants that underly the molecular pathogenesis of HLHS. Additionally, we discuss some of the emerging therapies and their limitations for HLHS. EXPERT OPINION While HLHS etiology is largely obscure, palliative therapies remain the most viable option for the patients. It is necessary to generate animal and stem cell models to understand the underlying genetic causes directly leading to HLHS and facilitate the use of gene-based therapies to improve cardiac development and regeneration.
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13
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Dyer LA, Rugonyi S. Fetal Blood Flow and Genetic Mutations in Conotruncal Congenital Heart Disease. J Cardiovasc Dev Dis 2021; 8:90. [PMID: 34436232 PMCID: PMC8397097 DOI: 10.3390/jcdd8080090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/19/2022] Open
Abstract
In congenital heart disease, the presence of structural defects affects blood flow in the heart and circulation. However, because the fetal circulation bypasses the lungs, fetuses with cyanotic heart defects can survive in utero but need prompt intervention to survive after birth. Tetralogy of Fallot and persistent truncus arteriosus are two of the most significant conotruncal heart defects. In both defects, blood access to the lungs is restricted or non-existent, and babies with these critical conditions need intervention right after birth. While there are known genetic mutations that lead to these critical heart defects, early perturbations in blood flow can independently lead to critical heart defects. In this paper, we start by comparing the fetal circulation with the neonatal and adult circulation, and reviewing how altered fetal blood flow can be used as a diagnostic tool to plan interventions. We then look at known factors that lead to tetralogy of Fallot and persistent truncus arteriosus: namely early perturbations in blood flow and mutations within VEGF-related pathways. The interplay between physical and genetic factors means that any one alteration can cause significant disruptions during development and underscore our need to better understand the effects of both blood flow and flow-responsive genes.
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Affiliation(s)
- Laura A. Dyer
- Department of Biology, University of Portland, Portland, OR 97203, USA;
| | - Sandra Rugonyi
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
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14
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Zhang YH, Li Z, Zeng T, Chen L, Li H, Gamarra M, Mansour RF, Escorcia-Gutierrez J, Huang T, Cai YD. Investigating gene methylation signatures for fetal intolerance prediction. PLoS One 2021; 16:e0250032. [PMID: 33886611 PMCID: PMC8062050 DOI: 10.1371/journal.pone.0250032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/29/2021] [Indexed: 11/29/2022] Open
Abstract
Pregnancy is a complicated and long procedure during one or more offspring development inside a woman. A short period of oxygen shortage after birth is quite normal for most babies and does not threaten their health. However, if babies have to suffer from a long period of oxygen shortage, then this condition is an indication of pathological fetal intolerance, which probably causes their death. The identification of the pathological fetal intolerance from the physical oxygen shortage is one of the important clinical problems in obstetrics for a long time. The clinical syndromes typically manifest five symptoms that indicate that the baby may suffer from fetal intolerance. At present, liquid biopsy combined with high-throughput sequencing or mass spectrum techniques provides a quick approach to detect real-time alteration in the peripheral blood at multiple levels with the rapid development of molecule sequencing technologies. Gene methylation is functionally correlated with gene expression; thus, the combination of gene methylation and expression information would help in screening out the key regulators for the pathogenesis of fetal intolerance. We combined gene methylation and expression features together and screened out the optimal features, including gene expression or methylation signatures, for fetal intolerance prediction for the first time. In addition, we applied various computational methods to construct a comprehensive computational pipeline to identify the potential biomarkers for fetal intolerance dependent on the liquid biopsy samples. We set up qualitative and quantitative computational models for the prediction for fetal intolerance during pregnancy. Moreover, we provided a new prospective for the detailed pathological mechanism of fetal intolerance. This work can provide a solid foundation for further experimental research and contribute to the application of liquid biopsy in antenatal care.
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Affiliation(s)
- Yu-Hang Zhang
- School of Life Sciences, Shanghai University, Shanghai, China
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Zhandong Li
- College of Food Engineering, Jilin Engineering Normal University, Changchun, China
| | - Tao Zeng
- Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai, China
| | - Hao Li
- College of Food Engineering, Jilin Engineering Normal University, Changchun, China
| | - Margarita Gamarra
- Department of Computational Science and Electronic, Universidad de la Costa, CUC, Barranquilla, Colombia
| | - Romany F. Mansour
- Department of Mathematics, Faculty of Science, New Valley University, El-Kharga, Egypt
| | - José Escorcia-Gutierrez
- Electronic and Telecommunicacions Program, Universidad Autónoma del Caribe, Barranquilla, Colombia
- * E-mail: (JEG); (TH); (YDC)
| | - Tao Huang
- Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- * E-mail: (JEG); (TH); (YDC)
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai, China
- * E-mail: (JEG); (TH); (YDC)
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15
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Liao H, Qi Y, Ye Y, Yue P, Zhang D, Li Y. Mechanotranduction Pathways in the Regulation of Mitochondrial Homeostasis in Cardiomyocytes. Front Cell Dev Biol 2021; 8:625089. [PMID: 33553165 PMCID: PMC7858659 DOI: 10.3389/fcell.2020.625089] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
Mitochondria are one of the most important organelles in cardiomyocytes. Mitochondrial homeostasis is necessary for the maintenance of normal heart function. Mitochondria perform four major biological processes in cardiomyocytes: mitochondrial dynamics, metabolic regulation, Ca2+ handling, and redox generation. Additionally, the cardiovascular system is quite sensitive in responding to changes in mechanical stress from internal and external environments. Several mechanotransduction pathways are involved in regulating the physiological and pathophysiological status of cardiomyocytes. Typically, the extracellular matrix generates a stress-loading gradient, which can be sensed by sensors located in cellular membranes, including biophysical and biochemical sensors. In subsequent stages, stress stimulation would regulate the transcription of mitochondrial related genes through intracellular transduction pathways. Emerging evidence reveals that mechanotransduction pathways have greatly impacted the regulation of mitochondrial homeostasis. Excessive mechanical stress loading contributes to impairing mitochondrial function, leading to cardiac disorder. Therefore, the concept of restoring mitochondrial function by shutting down the excessive mechanotransduction pathways is a promising therapeutic strategy for cardiovascular diseases. Recently, viral and non-viral protocols have shown potentials in application of gene therapy. This review examines the biological process of mechanotransduction pathways in regulating mitochondrial function in response to mechanical stress during the development of cardiomyopathy and heart failure. We also summarize gene therapy delivery protocols to explore treatments based on mechanical stress-induced mitochondrial dysfunction, to provide new integrative insights into cardiovascular diseases.
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Affiliation(s)
- Hongyu Liao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yan Qi
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan, China
| | - Yida Ye
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan, China
| | - Peng Yue
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Donghui Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan, China
| | - Yifei Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
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16
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Gao L, Yang X, Li Y, Wang Z, Wang S, Tan S, Chen A, Cao P, Shao J, Zhang Z, Zhang F, Zheng S. Curcumol inhibits KLF5-dependent angiogenesis by blocking the ROS/ERK signaling in liver sinusoidal endothelial cells. Life Sci 2021; 264:118696. [PMID: 33157090 DOI: 10.1016/j.lfs.2020.118696] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/18/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022]
Abstract
AIMS Liver fibrosis is a difficult problem in the medical field. We previously reported that curcumol, a bioactive substance, may inhibit the pathological angiogenesis of liver sinusoidal endothelial cells (LSECs) and play a good anti-hepatic fibrosis effect. However, the mechanism of curcumol inhibiting angiogenesis in LSEC needs to be further clarified. Here, we focus on how curcumol inhibits LSEC angiogenesis in liver fibrosis. MATERIALS AND METHODS Primary rat LSECs were cultured in vitro, and various molecular experiments including real-time PCR, western blot, immunofluorescence, tube formation assay and transwell migration assay were used to clarify the potential mechanism of curcumol. Carbon tetrachloride (CCl4) was applied to create a mouse liver fibrosis model. Blood and livers were taken to elucidate the efficacy of curcumol in vivo. KEY FINDINGS We found that curcumol could effectively inhibit LSEC angiogenesis in vitro. Interestingly, this process may depend on curcumol's inhibition of the expression of transcription factor KLF5. Mice experiment also showed that curcumol could alleviate chronic liver injury by reducing KLF5 expression. In addition, we suggested that curcumol could reduce the production of mitochondrial ROS and improve mitochondrial morphology in LSEC. More importantly, we proved that curcumol could suppress KLF5-mediated LSEC angiogenesis by inhibiting ROS/ERK signaling. SIGNIFICANCE We suggested that transcription factor KLF5 could be considered as a new target molecule of curcumol in improving liver fibrosis, and pointed out that curcumol targeted ROS/ERK-mediated KLF5 expression could inhibit LSEC angiogenesis. This provided a new theoretical basis for curcumol to ameliorate liver fibrosis.
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Affiliation(s)
- Liyuan Gao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiang Yang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yang Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhenyi Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Shijun Wang
- Shandong Co-innovation Center of TCM Formula, College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shanzhong Tan
- Department of Integrated TCM and Western Medicine, Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Anping Chen
- Department of Pathology, School of Medicine, Saint Louis University, St Louis, USA
| | - Peng Cao
- Jiangsu Key Laboratory of Therapeutic Material of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jiangjuan Shao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory of Therapeutic Material of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zili Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory of Therapeutic Material of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Feng Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory of Therapeutic Material of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Shizhong Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory of Therapeutic Material of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
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17
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Burggren W, Rojas Antich M. Angiogenesis in the Avian Embryo Chorioallantoic Membrane: A Perspective on Research Trends and a Case Study on Toxicant Vascular Effects. J Cardiovasc Dev Dis 2020; 7:jcdd7040056. [PMID: 33291457 PMCID: PMC7762154 DOI: 10.3390/jcdd7040056] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/23/2020] [Accepted: 12/02/2020] [Indexed: 02/07/2023] Open
Abstract
The chorioallantoic membrane (CAM) of the avian embryo is an intrinsically interesting gas exchange and osmoregulation organ. Beyond study by comparative biologists, however, the CAM vascular bed has been the focus of translational studies by cardiovascular life scientists interested in the CAM as a model for probing angiogenesis, heart development, and physiological functions. In this perspective article, we consider areas of cardiovascular research that have benefited from studies of the CAM, including the themes of investigation of the CAM's hemodynamic influence on heart and central vessel development, use of the CAM as a model vascular bed for studying angiogenesis, and the CAM as an assay tool. A case study on CAM vascularization effects of very low doses of crude oil as a toxicant is also presented that embraces some of these themes, showing the induction of subtle changes in the pattern of the CAM vasculature growth that are not readily observed by standard vascular assessment methodologies. We conclude by raising several questions in the area of CAM research, including the following: (1) Do changes in patterns of CAM growth, as opposed to absolute CAM growth, have biological significance?; (2) How does the relative amount of CAM vascularization compared to the embryo per se change during development?; and (3) Is the CAM actually representative of the mammalian systemic vascular beds that it is presumed to model?
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18
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Kindberg A, Hu JK, Bush JO. Forced to communicate: Integration of mechanical and biochemical signaling in morphogenesis. Curr Opin Cell Biol 2020; 66:59-68. [PMID: 32569947 PMCID: PMC7577940 DOI: 10.1016/j.ceb.2020.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/06/2020] [Accepted: 05/05/2020] [Indexed: 01/05/2023]
Abstract
Morphogenesis is a physical process that requires the generation of mechanical forces to achieve dynamic changes in cell position, tissue shape, and size as well as biochemical signals to coordinate these events. Mechanical forces are also used by the embryo to transmit detailed information across space and detected by target cells, leading to downstream changes in cellular properties and behaviors. Indeed, forces provide signaling information of complementary quality that can both synergize and diversify the functional outputs of biochemical signaling. Here, we discuss recent findings that reveal how mechanical signaling and biochemical signaling are integrated during morphogenesis and the possible context-specific advantages conferred by the interactions between these signaling mechanisms.
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Affiliation(s)
- Abigail Kindberg
- Program in Craniofacial Biology, University of California San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA, USA; Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA, USA; Biomedical Sciences Graduate Program, University of California San Francisco, San Francisco, CA, USA
| | - Jimmy K Hu
- School of Dentistry, University of California Los Angeles, Los Angeles, CA, USA; Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA, USA.
| | - Jeffrey O Bush
- Program in Craniofacial Biology, University of California San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA, USA; Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA, USA; Biomedical Sciences Graduate Program, University of California San Francisco, San Francisco, CA, USA.
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19
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Keller BB, Kowalski WJ, Tinney JP, Tobita K, Hu N. Validating the Paradigm That Biomechanical Forces Regulate Embryonic Cardiovascular Morphogenesis and Are Fundamental in the Etiology of Congenital Heart Disease. J Cardiovasc Dev Dis 2020; 7:E23. [PMID: 32545681 PMCID: PMC7344498 DOI: 10.3390/jcdd7020023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 05/31/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023] Open
Abstract
The goal of this review is to provide a broad overview of the biomechanical maturation and regulation of vertebrate cardiovascular (CV) morphogenesis and the evidence for mechanistic relationships between function and form relevant to the origins of congenital heart disease (CHD). The embryonic heart has been investigated for over a century, initially focusing on the chick embryo due to the opportunity to isolate and investigate myocardial electromechanical maturation, the ability to directly instrument and measure normal cardiac function, intervene to alter ventricular loading conditions, and then investigate changes in functional and structural maturation to deduce mechanism. The paradigm of "Develop and validate quantitative techniques, describe normal, perturb the system, describe abnormal, then deduce mechanisms" was taught to many young investigators by Dr. Edward B. Clark and then validated by a rapidly expanding number of teams dedicated to investigate CV morphogenesis, structure-function relationships, and pathogenic mechanisms of CHD. Pioneering studies using the chick embryo model rapidly expanded into a broad range of model systems, particularly the mouse and zebrafish, to investigate the interdependent genetic and biomechanical regulation of CV morphogenesis. Several central morphogenic themes have emerged. First, CV morphogenesis is inherently dependent upon the biomechanical forces that influence cell and tissue growth and remodeling. Second, embryonic CV systems dynamically adapt to changes in biomechanical loading conditions similar to mature systems. Third, biomechanical loading conditions dynamically impact and are regulated by genetic morphogenic systems. Fourth, advanced imaging techniques coupled with computational modeling provide novel insights to validate regulatory mechanisms. Finally, insights regarding the genetic and biomechanical regulation of CV morphogenesis and adaptation are relevant to current regenerative strategies for patients with CHD.
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Affiliation(s)
- Bradley B. Keller
- Cincinnati Children’s Heart Institute, Greater Louisville and Western Kentucky Practice, Louisville, KY 40202, USA
| | - William J. Kowalski
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA;
| | - Joseph P. Tinney
- Kosair Charities Pediatric Heart Research Program, Cardiovascular Innovation Institute, University of Louisville, Louisville, KY 40202, USA;
| | - Kimimasa Tobita
- Department of Medical Affairs, Abiomed Japan K.K., Muromachi Higashi Mitsui Bldg, Tokyo 103-0022, Japan;
| | - Norman Hu
- Department of Pediatrics, University of Utah, Salt Lake City, UT 84108, USA;
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20
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Souilhol C, Serbanovic-Canic J, Fragiadaki M, Chico TJ, Ridger V, Roddie H, Evans PC. Endothelial responses to shear stress in atherosclerosis: a novel role for developmental genes. Nat Rev Cardiol 2020; 17:52-63. [PMID: 31366922 DOI: 10.1038/s41569-019-0239-5] [Citation(s) in RCA: 245] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/04/2019] [Indexed: 01/04/2023]
Abstract
Flowing blood generates a frictional force called shear stress that has major effects on vascular function. Branches and bends of arteries are exposed to complex blood flow patterns that exert low or low oscillatory shear stress, a mechanical environment that promotes vascular dysfunction and atherosclerosis. Conversely, physiologically high shear stress is protective. Endothelial cells are critical sensors of shear stress but the mechanisms by which they decode complex shear stress environments to regulate physiological and pathophysiological responses remain incompletely understood. Several laboratories have advanced this field by integrating specialized shear-stress models with systems biology approaches, including transcriptome, methylome and proteome profiling and functional screening platforms, for unbiased identification of novel mechanosensitive signalling pathways in arteries. In this Review, we describe these studies, which reveal that shear stress regulates diverse processes and demonstrate that multiple pathways classically known to be involved in embryonic development, such as BMP-TGFβ, WNT, Notch, HIF1α, TWIST1 and HOX family genes, are regulated by shear stress in arteries in adults. We propose that mechanical activation of these pathways evolved to orchestrate vascular development but also drives atherosclerosis in low shear stress regions of adult arteries.
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Affiliation(s)
- Celine Souilhol
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Jovana Serbanovic-Canic
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Maria Fragiadaki
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Timothy J Chico
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
- Bateson Centre for Lifecourse Biology, University of Sheffield, Sheffield, UK
| | - Victoria Ridger
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Hannah Roddie
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Paul C Evans
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK.
- Bateson Centre for Lifecourse Biology, University of Sheffield, Sheffield, UK.
- INSIGNEO Institute for In Silico Medicine, University of Sheffield, Sheffield, UK.
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21
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Foo YY, Pant S, Tay HS, Imangali N, Chen N, Winkler C, Yap CH. 4D modelling of fluid mechanics in the zebrafish embryonic heart. Biomech Model Mechanobiol 2019; 19:221-232. [PMID: 31446522 DOI: 10.1007/s10237-019-01205-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 07/20/2019] [Indexed: 11/30/2022]
Abstract
Abnormal blood flow mechanics can result in pathological heart malformation, underlining the importance of understanding embryonic cardiac fluid mechanics. In the current study, we performed image-based computational fluid dynamics simulation of the zebrafish embryonic heart ventricles and characterized flow mechanics, organ dynamics, and energy dynamics in detail. 4D scans of 5 days post-fertilization embryonic hearts with GFP-labelled myocardium were acquired using line-scan focal modulation microscopy. This revealed that the zebrafish hearts exhibited a wave-like contractile/relaxation motion from the inlet to the outlet during both systole and diastole, which we showed to be an energy efficient configuration. No impedance pumping effects of pressure and velocity waves were observed. Due to its tube-like configuration, inflow velocities were higher near the inlet and smaller at the outlet and vice versa for outflow velocities. This resulted in an interesting spatial wall shear stress (WSS) pattern where WSS waveforms near the inlet and those near the outlet were out of phase. There was large spatial variability in WSS magnitudes. Peak WSS was in the range of 47.5-130 dyne/cm2 at the inflow and outflow tracts, but were much smaller, in the range of 4-11 dyne/cm2, in the mid-ventricular segment. Due to very low Reynolds number and the highly viscous environment, intraventricular pressure gradients were high, suggesting substantial energy losses of flow through the heart.
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Affiliation(s)
- Yoke Yin Foo
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Shilpa Pant
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Huiping Shermaine Tay
- Department of Biological Science, National University of Singapore, Singapore, Singapore
| | - Nurgul Imangali
- Department of Biological Science, National University of Singapore, Singapore, Singapore
| | - Nanguang Chen
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Christoph Winkler
- Department of Biological Science, National University of Singapore, Singapore, Singapore
| | - Choon Hwai Yap
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore.
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22
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Ho S, Chan WX, Rajesh S, Phan-Thien N, Yap CH. Fluid dynamics and forces in the HH25 avian embryonic outflow tract. Biomech Model Mechanobiol 2019; 18:1123-1137. [PMID: 30810888 DOI: 10.1007/s10237-019-01132-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 02/11/2019] [Indexed: 11/26/2022]
Abstract
The embryonic outflow tract (OFT) eventually undergoes aorticopulmonary septation to form the aorta and pulmonary artery, and it is hypothesized that blood flow mechanical forces guide this process. We performed detailed studies of the geometry, wall motions, and fluid dynamics of the HH25 chick embryonic OFT just before septation, using noninvasive 4D high-frequency ultrasound and computational flow simulations. The OFT exhibited expansion and contraction waves propagating from proximal to distal end, with periods of luminal collapse at locations of the two endocardial cushions. This, combined with periods of reversed flow, resulted in the OFT cushions experiencing wall shear stresses (WSS or flow drag forces) with elevated oscillatory characteristics, which could be important to signal for further development of cushions into valves and septum. Furthermore, the OFT exhibits interesting double-helical flow during systole, where a pair of helical flow structures twisted about each other from the proximal to distal end. This coincided with the location of the future aorticopulmonary septum, which also twisted from the proximal to distal end, suggesting that this flow pattern may be guiding OFT septation.
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Affiliation(s)
- Sheldon Ho
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Wei Xuan Chan
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Shreyas Rajesh
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Nhan Phan-Thien
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Choon Hwai Yap
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore.
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Paolini A, Abdelilah-Seyfried S. The mechanobiology of zebrafish cardiac valve leaflet formation. Curr Opin Cell Biol 2018; 55:52-58. [DOI: 10.1016/j.ceb.2018.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 05/10/2018] [Indexed: 12/31/2022]
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Asymmetry in Mechanosensitive Gene Expression during Aortic Arch Morphogenesis. Sci Rep 2018; 8:16948. [PMID: 30446764 PMCID: PMC6240117 DOI: 10.1038/s41598-018-35127-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/30/2018] [Indexed: 11/09/2022] Open
Abstract
Embryonic aortic arches (AA) are initially bilaterally paired, transitional vessels and failures in remodeling based on hemodynamic and growth-related adaptations cause a spectrum of congenital heart disease (CHD) anatomies. Identifying regulatory mechanisms and cross-talk between the genetic elements of these vessels are critical to understand the ethiology of CHD and refine predictive computational models. This study aims to screen expression profiles of fundamental biological pathways in AA at early stages of chick embryo morphogenesis and correlate them with our current understanding of growth and mechanical loading. Reverse transcription-quantitative PCR (RT-qPCR) was followed by correlation and novel peak expression analyses to compare the behaviour and activation period of the genes. Available protein networks were also integrated to investigate the interactions between molecules and highlight major hierarchies. Only wall shear stress (WSS) and growth-correlated expression patterns were investigated. Effect of WSS was seen directly on angiogenesis as well on structural and apoptosis-related genes. Our time-resolved network suggested that WSS-correlated genes coordinate the activity of critical growth factors. Moreover, differential gene expression of left and right AA might be an indicator of subsequent asymmetric morphogenesis. These findings may further our understanding of the complex processes of cardiac morphogenesis and errors resulting in CHD.
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Wiputra H, Chen CK, Talbi E, Lim GL, Soomar SM, Biswas A, Mattar CNZ, Bark D, Leo HL, Yap CH. Human fetal hearts with tetralogy of Fallot have altered fluid dynamics and forces. Am J Physiol Heart Circ Physiol 2018; 315:H1649-H1659. [PMID: 30216114 DOI: 10.1152/ajpheart.00235.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Studies have suggested the effect of blood flow forces in pathogenesis and progression of some congenital heart malformations. It is therefore of interest to study the fluid mechanic environment of the malformed prenatal heart, such as the tetralogy of Fallot (TOF), especially when little is known about fetal TOF. In this study, we performed patient-specific ultrasound-based flow simulations of three TOF and seven normal human fetal hearts. TOF right ventricles (RVs) had smaller end-diastolic volumes (EDVs) but similar stroke volumes (SVs), whereas TOF left ventricles (LVs) had similar EDVs but slightly increased SVs compared with normal ventricles. Simulations showed that TOF ventricles had elevated systolic intraventricular pressure gradient (IVPG) and required additional energy for ejection but IVPG elevations were considered to be mild relative to arterial pressure. TOF RVs and LVs had similar pressures because of equalization via ventricular septal defect (VSD). Furthermore, relative to normal, TOF RVs had increased diastolic wall shear stresses (WSS) but TOF LVs were not. This was caused by high tricuspid inflow that exceeded RV SV, leading to right-to-left shunting and chaotic flow with enhanced vorticity interaction with the wall to elevate WSS. Two of the three TOF RVs but none of the LVs had increased thickness. As pressure elevations were mild, we hypothesized that pressure and WSS elevation could play a role in the RV thickening, among other causative factors. Finally, the endocardium surrounding the VSD consistently experienced high WSS because of RV-to-LV flow shunt and high flow rate through the over-riding aorta. NEW & NOTEWORTHY Blood flow forces are thought to cause congenital heart malformations and influence disease progression. We performed novel investigations of intracardiac fluid mechanics of tetralogy of Fallot (TOF) human fetal hearts and found essential differences from normal hearts. The TOF right ventricle (RV) and left ventricle had similar and elevated pressure but only the TOF RV had elevated wall shear stress because of elevated tricuspid inflow, and this may contribute to the observed RV thickening. TOF hearts also expended more energy for ejection.
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Affiliation(s)
- Hadi Wiputra
- Department of Biomedical Engineering, National University of Singapore , Singapore
| | - Ching Kit Chen
- Division of Cardiology, Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System , Singapore
| | - Elias Talbi
- Department of Biomedical Engineering, National University of Singapore , Singapore
| | - Guat Ling Lim
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System , Singapore
| | - Sanah Merchant Soomar
- Division of Cardiology, Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System , Singapore
| | - Arijit Biswas
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System , Singapore
| | - Citra Nurfarah Zaini Mattar
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System , Singapore
| | - David Bark
- Department of Mechanical Engineering, Colorado State University , Fort Collins, Colorado
| | - Hwa Liang Leo
- Department of Biomedical Engineering, National University of Singapore , Singapore
| | - Choon Hwai Yap
- Department of Biomedical Engineering, National University of Singapore , Singapore
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Reprogramming the Stem Cell Behavior by Shear Stress and Electric Field Stimulation: Lab-on-a-Chip Based Biomicrofluidics in Regenerative Medicine. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2018. [DOI: 10.1007/s40883-018-0071-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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27
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Hoog TG, Fredrickson SJ, Hsu CW, Senger SM, Dickinson ME, Udan RS. The effects of reduced hemodynamic loading on morphogenesis of the mouse embryonic heart. Dev Biol 2018; 442:127-137. [PMID: 30012423 DOI: 10.1016/j.ydbio.2018.07.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 12/20/2022]
Abstract
Development of the embryonic heart involves an intricate network of biochemical and genetic cues to ensure its proper growth and morphogenesis. However, studies from avian and teleost models reveal that biomechanical force, namely hemodynamic loading (blood pressure and shear stress), plays a significant role in regulating heart development. To study how hemodynamic loading impacts development of the mammalian embryonic heart, we utilized mouse embryo culture and manipulation techniques and performed optical projection tomography imaging followed by morphometric analysis to determine how reduced-loading affects heart volume, myocardial thickness, trabeculation and looping. Our results reveal that hemodynamic loading can regulate these features at different thresholds. Intermediate levels of hemodynamic loading are sufficient to promote proper myocardial growth and heart size, but insufficient to promote looping and trabeculation. Whereas, low levels of hemodynamic loading fails to promote proper growth of the myocardium and heart size. These results reveal that the regulation of heart development by biomechanical force is conserved across many vertebrate classes, and this study begins to elucidate how these specific forces regulate development of the mammalian heart.
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Affiliation(s)
- Tanner G Hoog
- Department of Biology, Missouri State University, United States
| | | | - Chih-Wei Hsu
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, United States
| | - Steven M Senger
- Department of Mathematics, Missouri State University, United States
| | - Mary E Dickinson
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, United States
| | - Ryan S Udan
- Department of Biology, Missouri State University, United States.
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28
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Espinosa MG, Taber LA, Wagenseil JE. Reduced embryonic blood flow impacts extracellular matrix deposition in the maturing aorta. Dev Dyn 2018; 247:914-923. [PMID: 29696727 DOI: 10.1002/dvdy.24635] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/15/2018] [Accepted: 04/18/2018] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Perturbations to embryonic hemodynamics are known to adversely affect cardiovascular development. Vitelline vein ligation (VVL) is a model of reduced placental blood flow used to induce cardiac defects in early chick embryo development. The effect of these hemodynamic interventions on maturing elastic arteries is largely unknown. We hypothesize that hemodynamic changes impact maturation of the dorsal aorta (DA). RESULTS We examined the effects of VVL on hemodynamic properties well into the maturation process and the corresponding changes in aortic dimensions, wall composition, and gene expression. In chick embryos, we found that DA blood velocity was reduced immediately postsurgery at Hamburger-Hamilton (HH) stage 18 and later at HH36, but not in the interim. Throughout this period, DA diameter adapted to maintain a constant shear stress. At HH36, we found that VVL DAs showed a substantial decrease in elastin and a modest increase in collagen protein content. In VVL DAs, up-regulation of elastic fiber-related genes followed the down-regulation of flow-dependent genes. Together, these suggest the existence of a compensatory mechanism in response to shear-induced delays in maturation. CONCLUSIONS The DA's response to hemodynamic perturbations invokes coupled mechanisms for shear regulation and matrix maturation, potentially impacting the course of vascular development. Developmental Dynamics 247:914-923, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- M Gabriela Espinosa
- Department of Biomedical Engineering, Washington University, Saint Louis, Missouri
| | - Larry A Taber
- Department of Biomedical Engineering, Washington University, Saint Louis, Missouri
| | - Jessica E Wagenseil
- Department of Mechanical Engineering and Materials Science, Washington University, Saint Louis, Missouri
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29
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Donat S, Lourenço M, Paolini A, Otten C, Renz M, Abdelilah-Seyfried S. Heg1 and Ccm1/2 proteins control endocardial mechanosensitivity during zebrafish valvulogenesis. eLife 2018; 7:28939. [PMID: 29364115 PMCID: PMC5794256 DOI: 10.7554/elife.28939] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 01/24/2018] [Indexed: 12/18/2022] Open
Abstract
Endothelial cells respond to different levels of fluid shear stress through adaptations of their mechanosensitivity. Currently, we lack a good understanding of how this contributes to sculpting of the cardiovascular system. Cerebral cavernous malformation (CCM) is an inherited vascular disease that occurs when a second somatic mutation causes a loss of CCM1/KRIT1, CCM2, or CCM3 proteins. Here, we demonstrate that zebrafish Krit1 regulates the formation of cardiac valves. Expression of heg1, which encodes a binding partner of Krit1, is positively regulated by blood-flow. In turn, Heg1 stabilizes levels of Krit1 protein, and both Heg1 and Krit1 dampen expression levels of klf2a, a major mechanosensitive gene. Conversely, loss of Krit1 results in increased expression of klf2a and notch1b throughout the endocardium and prevents cardiac valve leaflet formation. Hence, the correct balance of blood-flow-dependent induction and Krit1 protein-mediated repression of klf2a and notch1b ultimately shapes cardiac valve leaflet morphology.
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Affiliation(s)
- Stefan Donat
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
| | - Marta Lourenço
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Alessio Paolini
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Cécile Otten
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Marc Renz
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
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30
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Giusti B, Sticchi E, De Cario R, Magi A, Nistri S, Pepe G. Genetic Bases of Bicuspid Aortic Valve: The Contribution of Traditional and High-Throughput Sequencing Approaches on Research and Diagnosis. Front Physiol 2017; 8:612. [PMID: 28883797 PMCID: PMC5573733 DOI: 10.3389/fphys.2017.00612] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022] Open
Abstract
Bicuspid aortic valve (BAV) is a common (0.5-2.0% of general population) congenital heart defect with increased prevalence of aortic dilatation and dissection. BAV has an autosomal dominant inheritance with reduced penetrance and variable expressivity. BAV has been described as an isolated trait or associated with syndromic conditions [e.g., Marfan Marfan syndrome or Loeys-Dietz syndrome (MFS, LDS)]. Identification of a syndromic condition in a BAV patient is clinically relevant to personalize aortic surgery indication. A 4-fold increase in BAV prevalence in a large cohort of unrelated MFS patients with respect to general population was reported, as well as in LDS patients (8-fold). It is also known that BAV is more frequent in patients with thoracic aortic aneurysm (TAA) related to mutations in ACTA2, FBN1, and TGFBR2 genes. Moreover, in 8 patients with BAV and thoracic aortic dilation, not fulfilling the clinical criteria for MFS, FBN1 mutations in 2/8 patients were identified suggesting that FBN1 or other genes involved in syndromic conditions correlated to aortopathy could be involved in BAV. Beyond loci associated to syndromic disorders, studies in humans and animal models evidenced/suggested the role of further genes in non-syndromic BAV. The transcriptional regulator NOTCH1 has been associated with the development and acceleration of calcium deposition. Genome wide marker-based linkage analysis demonstrated a linkage of BAV to loci on chromosomes 18, 5, and 13q. Recently, a role for GATA4/5 in aortic valve morphogenesis and endocardial cell differentiation has been reported. BAV has also been associated with a reduced UFD1L gene expression or involvement of a locus containing AXIN1/PDIA2. Much remains to be understood about the genetics of BAV. In the last years, high-throughput sequencing technologies, allowing the analysis of large number of genes or entire exomes or genomes, progressively became available. The latter issue together with the development of "BigData" analysis methods improving their interpretation and integration with clinical data represents a promising opportunity to increase the disease knowledge and diagnosis in monogenic and multifactorial complex traits. This review summarized the main knowledge on the BAV genetic bases, the role of genetic diagnosis in BAV patient managements and the crucial challenges for the comprehension of genetics of BAV in research and diagnosis.
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Affiliation(s)
- Betti Giusti
- Department of Experimental and Clinical Medicine, Section of Critical Medical Care and Medical Specialities, University of FlorenceFlorence, Italy.,Marfan Syndrome and Related Disorders Regional (Tuscany) Referral Center, Careggi HospitalFlorence, Italy.,Advanced Molecular Genetics Laboratory, Atherothrombotic Diseases Center, Careggi HospitalFlorence, Italy.,Center of Excellence for the Study at Molecular and Clinical Level of Chronic, Degenerative and Neoplastic Diseases to Develop Novel Therapies (DENOTHE), University of FlorenceFlorence, Italy
| | - Elena Sticchi
- Department of Experimental and Clinical Medicine, Section of Critical Medical Care and Medical Specialities, University of FlorenceFlorence, Italy.,Marfan Syndrome and Related Disorders Regional (Tuscany) Referral Center, Careggi HospitalFlorence, Italy.,Advanced Molecular Genetics Laboratory, Atherothrombotic Diseases Center, Careggi HospitalFlorence, Italy.,Center of Excellence for the Study at Molecular and Clinical Level of Chronic, Degenerative and Neoplastic Diseases to Develop Novel Therapies (DENOTHE), University of FlorenceFlorence, Italy
| | - Rosina De Cario
- Department of Experimental and Clinical Medicine, Section of Critical Medical Care and Medical Specialities, University of FlorenceFlorence, Italy.,Marfan Syndrome and Related Disorders Regional (Tuscany) Referral Center, Careggi HospitalFlorence, Italy
| | - Alberto Magi
- Department of Experimental and Clinical Medicine, Section of Critical Medical Care and Medical Specialities, University of FlorenceFlorence, Italy.,Advanced Molecular Genetics Laboratory, Atherothrombotic Diseases Center, Careggi HospitalFlorence, Italy
| | - Stefano Nistri
- Center of Excellence for the Study at Molecular and Clinical Level of Chronic, Degenerative and Neoplastic Diseases to Develop Novel Therapies (DENOTHE), University of FlorenceFlorence, Italy.,Cardiology Service, Centro Medico Strumentale Riabilitativo (CMSR) Veneto MedicaAltavilla Vicentina, Italy
| | - Guglielmina Pepe
- Department of Experimental and Clinical Medicine, Section of Critical Medical Care and Medical Specialities, University of FlorenceFlorence, Italy.,Marfan Syndrome and Related Disorders Regional (Tuscany) Referral Center, Careggi HospitalFlorence, Italy.,Center of Excellence for the Study at Molecular and Clinical Level of Chronic, Degenerative and Neoplastic Diseases to Develop Novel Therapies (DENOTHE), University of FlorenceFlorence, Italy
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31
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Nakajima H, Mochizuki N. Flow pattern-dependent endothelial cell responses through transcriptional regulation. Cell Cycle 2017; 16:1893-1901. [PMID: 28820314 DOI: 10.1080/15384101.2017.1364324] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Blood flow provides endothelial cells (ECs) lining the inside of blood vessels with mechanical stimuli as well as humoral stimuli. Fluid shear stress, the frictional force between flowing blood and ECs, is recognized as an essential mechanical cue for vascular growth, remodeling, and homeostasis. ECs differentially respond to distinct flow patterns. High laminar shear flow leads to inhibition of cell cycle progression and stabilizes vessels, whereas low shear flow or disturbed flow leads to increased turnover of ECs and inflammatory responses of ECs prone to atherogenic. These differences of EC responses dependent on flow pattern are mainly ascribed to distinct patterns of gene expression. In this review, we highlight flow pattern-dependent transcriptional regulation in ECs by focusing on KLF2 and NFκB, major transcription factors responding to laminar flow and disturbed flow, respectively. Moreover, we introduce roles of a new flow-responsive transcriptional co-regulator, YAP, in blood vessel maintenance and discuss how these transcriptional regulators are spatiotemporally regulated by flow and then regulate EC functions in normal and pathological conditions.
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Affiliation(s)
- Hiroyuki Nakajima
- a Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute , Suita , Osaka , Japan
| | - Naoki Mochizuki
- a Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute , Suita , Osaka , Japan.,b AMED-CREST. National Cerebral and Cardiovascular Center , Suita , Osaka , Japan
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32
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Shao M, Ge GZ, Liu WJ, Xiao J, Xia HJ, Fan Y, Zhao F, He BL, Chen C. Characterization and phylogenetic analysis of Krüppel-like transcription factor (KLF) gene family in tree shrews (Tupaia belangeri chinensis). Oncotarget 2017; 8:16325-16339. [PMID: 28032601 PMCID: PMC5369966 DOI: 10.18632/oncotarget.13883] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 12/05/2016] [Indexed: 11/25/2022] Open
Abstract
Krüppel-like factors (KLFs) are a family of zinc finger transcription factors regulating embryonic development and diseases. The phylogenetics of KLFs has not been studied in tree shrews, an animal lineage with a closer relationship to primates than rodents. Here, we identified 17 KLFs from Chinese tree shrew (Tupaia belangeri chinensis). KLF proteins are highly conserved among humans, monkeys, rats, mice and tree shrews compared to zebrafish and chickens. The CtBP binding site, Sin3A binding site and nuclear localization signals are largely conserved between tree shrews and human beings. Tupaia belangeri (Tb) KLF5 contains several conserved post-transcriptional modification motifs. Moreover, the mRNA and protein expression patterns of multiple tbKLFs are tissue-specific. TbKLF5, like hKLF5, significantly promotes NIH3T3 cell proliferation in vitro. These results provide insight for future studies regarding the structure and function of the tbKLF gene family.
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Affiliation(s)
- Ming Shao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China.,Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Guang-Zhe Ge
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China.,Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Wen-Jing Liu
- Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China.,Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Ji Xiao
- Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China.,Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Hou-Jun Xia
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Yu Fan
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Feng Zhao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Bao-Li He
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan 650500, China
| | - Ceshi Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
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33
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Oxygenated hypothermic machine perfusion after static cold storage improves endothelial function of extended criteria donor livers. HPB (Oxford) 2017; 19:538-546. [PMID: 28351756 DOI: 10.1016/j.hpb.2017.02.439] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 01/22/2017] [Accepted: 02/23/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Lack of oxygen and biomechanical stimulation during static cold storage (SCS) of donor livers compromises endothelial cell function. We investigated the effect of end-ischemic oxygenated hypothermic machine perfusion (HMP) on endothelial cell function of extended criteria donor (ECD) livers. METHODS Eighteen livers, declined for transplantation, were transported to our center using static cold storage (SCS). After SCS, 6 livers underwent two hours of HMP, and subsequent normothermic machine perfusion (NMP) to assess viability. Twelve control livers underwent NMP immediately after SCS. mRNA expression of transcription factor Krüppel-like-factor 2 (KLF2), endothelial nitric oxide synthase (eNOS), and thrombomodulin (TM) was quantified by RT-PCR. Endothelial cell function and injury were assessed by nitric oxide (NO) production and release of TM into the perfusate. RESULTS In HMP livers, mRNA expression of KLF2 (p = 0.043), eNOS (p = 0.028), and TM (p = 0.028) increased significantly during NMP. In parallel, NO levels increased during NMP in HMP livers but not in controls. At the end of NMP cumulative TM release was significantly lower HMP livers, compared to controls (p = 0.028). CONCLUSION A short period of two hours oxygenated HMP restores endothelial cell viability after SCS and subsequent normothermic reoxygenation of ECD livers.
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34
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Pang KL, Parnall M, Loughna S. Effect of altered haemodynamics on the developing mitral valve in chick embryonic heart. J Mol Cell Cardiol 2017; 108:114-126. [PMID: 28576718 PMCID: PMC5529288 DOI: 10.1016/j.yjmcc.2017.05.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 05/23/2017] [Accepted: 05/29/2017] [Indexed: 12/31/2022]
Abstract
Intracardiac haemodynamics is crucial for normal cardiogenesis, with recent evidence showing valvulogenesis is haemodynamically dependent and inextricably linked with shear stress. Although valve anomalies have been associated with genetic mutations, often the cause is unknown. However, altered haemodynamics have been suggested as a pathogenic contributor to bicuspid aortic valve disease. Conversely, how abnormal haemodynamics impacts mitral valve development is still poorly understood. In order to analyse altered blood flow, the outflow tract of the chick heart was constricted using a ligature to increase cardiac pressure overload. Outflow tract-banding was performed at HH21, with harvesting at crucial valve development stages (HH26, HH29 and HH35). Although normal valve morphology was found in HH26 outflow tract banded hearts, smaller and dysmorphic mitral valve primordia were seen upon altered haemodynamics in histological and stereological analysis at HH29 and HH35. A decrease in apoptosis, and aberrant expression of a shear stress responsive gene and extracellular matrix markers in the endocardial cushions were seen in the chick HH29 outflow tract banded hearts. In addition, dysregulation of extracellular matrix (ECM) proteins fibrillin-2, type III collagen and tenascin were further demonstrated in more mature primordial mitral valve leaflets at HH35, with a concomitant decrease of ECM cross-linking enzyme, transglutaminase-2. These data provide compelling evidence that normal haemodynamics are a prerequisite for normal mitral valve morphogenesis, and abnormal blood flow could be a contributing factor in mitral valve defects, with differentiation as a possible underlying mechanism.
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Affiliation(s)
- Kar Lai Pang
- School of Life Sciences, Medical School, University of Nottingham, Nottingham NG7 2UH, UK
| | - Matthew Parnall
- School of Life Sciences, Medical School, University of Nottingham, Nottingham NG7 2UH, UK
| | - Siobhan Loughna
- School of Life Sciences, Medical School, University of Nottingham, Nottingham NG7 2UH, UK.
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35
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Poelmann RE, Gittenberger-de Groot AC, Biermans MWM, Dolfing AI, Jagessar A, van Hattum S, Hoogenboom A, Wisse LJ, Vicente-Steijn R, de Bakker MAG, Vonk FJ, Hirasawa T, Kuratani S, Richardson MK. Outflow tract septation and the aortic arch system in reptiles: lessons for understanding the mammalian heart. EvoDevo 2017; 8:9. [PMID: 28491275 PMCID: PMC5424407 DOI: 10.1186/s13227-017-0072-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 05/03/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cardiac outflow tract patterning and cell contribution are studied using an evo-devo approach to reveal insight into the development of aorto-pulmonary septation. RESULTS We studied embryonic stages of reptile hearts (lizard, turtle and crocodile) and compared these to avian and mammalian development. Immunohistochemistry allowed us to indicate where the essential cell components in the outflow tract and aortic sac were deployed, more specifically endocardial, neural crest and second heart field cells. The neural crest-derived aorto-pulmonary septum separates the pulmonary trunk from both aortae in reptiles, presenting with a left visceral and a right systemic aorta arising from the unseptated ventricle. Second heart field-derived cells function as flow dividers between both aortae and between the two pulmonary arteries. In birds, the left visceral aorta disappears early in development, while the right systemic aorta persists. This leads to a fusion of the aorto-pulmonary septum and the aortic flow divider (second heart field population) forming an avian aorto-pulmonary septal complex. In mammals, there is also a second heart field-derived aortic flow divider, albeit at a more distal site, while the aorto-pulmonary septum separates the aortic trunk from the pulmonary trunk. As in birds there is fusion with second heart field-derived cells albeit from the pulmonary flow divider as the right 6th pharyngeal arch artery disappears, resulting in a mammalian aorto-pulmonary septal complex. In crocodiles, birds and mammals, the main septal and parietal endocardial cushions receive neural crest cells that are functional in fusion and myocardialization of the outflow tract septum. Longer-lasting septation in crocodiles demonstrates a heterochrony in development. In other reptiles with no indication of incursion of neural crest cells, there is either no myocardialized outflow tract septum (lizard) or it is vestigial (turtle). Crocodiles are unique in bearing a central shunt, the foramen of Panizza, between the roots of both aortae. Finally, the soft-shell turtle investigated here exhibits a spongy histology of the developing carotid arteries supposedly related to regulation of blood flow during pharyngeal excretion in this species. CONCLUSIONS This is the first time that is shown that an interplay of second heart field-derived flow dividers with a neural crest-derived cell population is a variable but common, denominator across all species studied for vascular patterning and outflow tract septation. The observed differences in normal development of reptiles may have impact on the understanding of development of human congenital outflow tract malformations.
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Affiliation(s)
- Robert E Poelmann
- Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, Leiden, The Netherlands.,Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | | | - Marcel W M Biermans
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | - Anne I Dolfing
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | - Armand Jagessar
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | - Sam van Hattum
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | - Amanda Hoogenboom
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | - Lambertus J Wisse
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, Leiden, The Netherlands
| | - Rebecca Vicente-Steijn
- Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, Leiden, The Netherlands.,Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, Leiden, The Netherlands
| | - Merijn A G de Bakker
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
| | - Freek J Vonk
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands.,Naturalis Biodiversity Center, Darwinweg 2, Leiden, The Netherlands
| | - Tatsuya Hirasawa
- Laboratory for Evolutionary Morphology, RIKEN, 2-2-3 Minatojima-minami, Chuo-ku, Kobe, Hyogo 650-0047 Japan
| | - Shigeru Kuratani
- Laboratory for Evolutionary Morphology, RIKEN, 2-2-3 Minatojima-minami, Chuo-ku, Kobe, Hyogo 650-0047 Japan
| | - Michael K Richardson
- Animal Sciences and Health, Sylvius Laboratories, University of Leiden, Sylviusweg 72, Leiden, The Netherlands
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Wu B, Wang Y, Xiao F, Butcher JT, Yutzey KE, Zhou B. Developmental Mechanisms of Aortic Valve Malformation and Disease. Annu Rev Physiol 2017; 79:21-41. [DOI: 10.1146/annurev-physiol-022516-034001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bingruo Wu
- Departments of Genetics, Pediatrics, and Medicine (Cardiology), Wilf Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York 10461;
| | - Yidong Wang
- Departments of Genetics, Pediatrics, and Medicine (Cardiology), Wilf Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York 10461;
| | - Feng Xiao
- Departments of Genetics, Pediatrics, and Medicine (Cardiology), Wilf Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York 10461;
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029 China
| | - Jonathan T. Butcher
- Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853;
| | - Katherine E. Yutzey
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Medical Center, Cincinnati, Ohio 45229;
| | - Bin Zhou
- Departments of Genetics, Pediatrics, and Medicine (Cardiology), Wilf Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York 10461;
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029 China
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Pesce M, Messina E, Chimenti I, Beltrami AP. Cardiac Mechanoperception: A Life-Long Story from Early Beats to Aging and Failure. Stem Cells Dev 2016; 26:77-90. [PMID: 27736363 DOI: 10.1089/scd.2016.0206] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The life-long story of the heart starts concomitantly with primary differentiation events occurring in multipotent progenitors located in the so-called heart tube. This initially tubular structure starts a looping process, which leads to formation of the final four-chambered heart with a primary contribution of geometric and position-associated cell sensing. While this establishes the correct patterning of the final cardiac structure, it also provides feedbacks to fundamental cellular machineries controlling proliferation and differentiation, thus ensuring a coordinated restriction of cell growth and a myocyte terminal differentiation. Novel evidences provided by embryological and cell engineering studies have clarified the relevance of mechanics-supported position sensing for the correct recognition of cell fate inside developing embryos and multicellular aggregates. One of the main components of this pathway, the Hippo-dependent signal transduction machinery, is responsible for cell mechanics intracellular transduction with important consequences for gene transcription and cell growth control. Being the Hippo pathway also directly connected to stress responses and altered metabolism, it is tempting to speculate that permanent alterations of mechanosensing may account for modifying self-renewal control in tissue homeostasis. In the present contribution, we translate these concepts to the aging process and the failing of the human heart, two pathophysiologic conditions that are strongly affected by stress responses and altered metabolism.
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Affiliation(s)
- Maurizio Pesce
- 1 Tissue Engineering Research Unit, Centro Cardiologico Monzino, IRCCS , Milan, Italy
| | - Elisa Messina
- 2 Department of Pediatric Cardiology, "Sapienza" University , Rome, Italy
| | - Isotta Chimenti
- 3 Department of Medical Surgical Science and Biotechnology, "Sapienza" University , Rome, Italy
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Bulk A, Bark D, Johnson B, Garrity D, Dasi LP. Mechanisms influencing retrograde flow in the atrioventricular canal during early embryonic cardiogenesis. J Biomech 2016; 49:3162-3167. [DOI: 10.1016/j.jbiomech.2016.07.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 07/23/2016] [Accepted: 07/26/2016] [Indexed: 12/21/2022]
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Midgett M, Chivukula VK, Dorn C, Wallace S, Rugonyi S. Blood flow through the embryonic heart outflow tract during cardiac looping in HH13-HH18 chicken embryos. J R Soc Interface 2016; 12:20150652. [PMID: 26468069 DOI: 10.1098/rsif.2015.0652] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Blood flow is inherently linked to embryonic cardiac development, as haemodynamic forces exerted by flow stimulate mechanotransduction mechanisms that modulate cardiac growth and remodelling. This study evaluated blood flow in the embryonic heart outflow tract (OFT) during normal development at each stage between HH13 and HH18 in chicken embryos, in order to characterize changes in haemodynamic conditions during critical cardiac looping transformations. Two-dimensional optical coherence tomography was used to simultaneously acquire both structural and Doppler flow images, in order to extract blood flow velocity and structural information and estimate haemodynamic measures. From HH13 to HH18, peak blood flow rate increased by 2.4-fold and stroke volume increased by 2.1-fold. Wall shear rate (WSR) and lumen diameter data suggest that changes in blood flow during HH13-HH18 may induce a shear-mediated vasodilation response in the OFT. Embryo-specific four-dimensional computational fluid dynamics modelling at HH13 and HH18 complemented experimental observations and indicated heterogeneous WSR distributions over the OFT. Characterizing changes in haemodynamics during cardiac looping will help us better understand the way normal blood flow impacts proper cardiac development.
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Affiliation(s)
- Madeline Midgett
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, USA
| | - Venkat Keshav Chivukula
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, USA
| | - Calder Dorn
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Samantha Wallace
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Sandra Rugonyi
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, USA
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40
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Haack T, Abdelilah-Seyfried S. The force within: endocardial development, mechanotransduction and signalling during cardiac morphogenesis. Development 2016; 143:373-86. [PMID: 26839341 DOI: 10.1242/dev.131425] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Endocardial cells are cardiac endothelial cells that line the interior of the heart tube. Historically, their contribution to cardiac development has mainly been considered from a morphological perspective. However, recent studies have begun to define novel instructive roles of the endocardium, as a sensor and signal transducer of biophysical forces induced by blood flow, and as an angiocrine signalling centre that is involved in myocardial cellular morphogenesis, regeneration and reprogramming. In this Review, we discuss how the endocardium develops, how endocardial-myocardial interactions influence the developing embryonic heart, and how the dysregulation of blood flow-responsive endocardial signalling can result in pathophysiological changes.
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Affiliation(s)
- Timm Haack
- Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, Hannover D-30625, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, Hannover D-30625, Germany Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, Potsdam D-14476, Germany
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41
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McCormick ME, Tzima E. Pulling on my heartstrings: mechanotransduction in cardiac development and function. Curr Opin Hematol 2016; 23:235-42. [PMID: 26906028 PMCID: PMC4823169 DOI: 10.1097/moh.0000000000000240] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW Endothelial cells line the surface of the cardiovascular system and display a large degree of heterogeneity due to developmental origin and location. Despite this heterogeneity, all endothelial cells are exposed to wall shear stress (WSS) imparted by the frictional force of flowing blood, which plays an important role in determining the endothelial cell phenotype. Although the effects of WSS have been greatly studied in vascular endothelial cells, less is known about the role of WSS in regulating cardiac function and cardiac endothelial cells. RECENT FINDINGS Recent advances in genetic and imaging technologies have enabled a more thorough investigation of cardiac hemodynamics. Using developmental models, shear stress sensing by endocardial endothelial cells has been shown to play an integral role in proper cardiac development including morphogenesis and formation of the conduction system. In the adult, less is known about hemodynamics and endocardial endothelial cells, but a clear role for WSS in the development of coronary and valvular disease is increasingly appreciated. SUMMARY Future research will further elucidate a role for WSS in the developing and adult heart, and understanding this dynamic relationship may represent a potential therapeutic target for the treatment of cardiomyopathies.
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Affiliation(s)
- Margaret E. McCormick
- Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ellie Tzima
- Division of Cardiovascular Medicine,Wellcome Trust Centre for Human Genetics, Oxford University, Oxford, UK
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Clark ES, Pepper VK, Best CA, Onwuka EA, Yi T, Tara S, Cianciolo R, Baker P, Shinoka T, Breuer CK. A mouse model of endocardial fibroelastosis. Cardiovasc Pathol 2015; 24:388-94. [PMID: 26363814 PMCID: PMC4747030 DOI: 10.1016/j.carpath.2015.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 07/08/2015] [Accepted: 08/07/2015] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Endocardial fibroelastosis (EFE) is a pathologic condition of abnormal deposition of collagen and elastin within the endocardium of the heart. It is seen in conjunction with a variety of diseases including hypoplastic left heart syndrome and viral endocarditis. While an experimental model using heterotopic heart transplant in rats has been described, we sought to fully describe a mouse model that can be used to further elucidate the potential mechanisms of and treatments for EFE. MATERIALS AND METHODS The hearts of 2-day-old C57BL/6 mice were transplanted into the abdomen of 7-week-old C57BL/6 mice. At 2 weeks, the hearts were harvested and histologic analysis was performed using hematoxylin and eosin, Masson's trichrome, Russell-Movat's pentachrome, Picrosirius red, Hart's, Verhoeff-Van Gieson, and Weigert's Resorcin-Fuchsin stains. Additionally, one heart was analyzed using transmission electron microscopy (TEM). RESULTS Specimens demonstrated abnormal accumulation of both collagen and elastin within the endocardium with occasional expansion into the myocardium. Heterogeneity in extracellular matrix deposition was noted in the histologic specimens. In addition, TEM demonstrated the presence of excess collagen within the endocardium. CONCLUSIONS The heterotopic transplantation of an immature heart into a mouse results in changes consistent with EFE. This model is appropriate to investigate the etiology and treatment of EFE.
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Affiliation(s)
- Elizabeth S Clark
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Columbus, OH 43210, USA
| | - Victoria K Pepper
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; Department of Pediatric Surgery, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205-2664, USA
| | - Cameron A Best
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA
| | - Ekene A Onwuka
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; Department of Surgery, The Ohio State University, 395 W. 12th Avenue - Suite 670, Columbus, OH 43210, USA
| | - Tai Yi
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA
| | - Shuhei Tara
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA
| | - Rachel Cianciolo
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Columbus, OH 43210, USA
| | - Peter Baker
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; Department of Pathology, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205-2664, USA
| | - Toshiharu Shinoka
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; Department of Cardiovascular Surgery, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205-2664, USA
| | - Christopher K Breuer
- Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; Department of Pediatric Surgery, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205-2664, USA.
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Andelfinger G, Loeys B, Dietz H. A Decade of Discovery in the Genetic Understanding of Thoracic Aortic Disease. Can J Cardiol 2015; 32:13-25. [PMID: 26724507 DOI: 10.1016/j.cjca.2015.10.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 10/14/2015] [Accepted: 10/18/2015] [Indexed: 12/23/2022] Open
Abstract
Aortic aneurysms are responsible for a significant number of all deaths in Western countries. In this review we provide a perspective on the important progress made over the past decade in the understanding of the genetics of this condition, with an emphasis on the more frequent forms of vascular smooth muscle and transforming growth factor β (TGF-β) signalling alterations. For several nonsyndromic and syndromic forms of thoracic aortic disease, a genetic basis has now been identified, with 3 main pathomechanisms that have emerged: perturbation of the TGF-β signalling pathway, disruption of the vascular smooth muscle cell (VSMC) contractile apparatus, and impairment of extracellular matrix synthesis. Because smooth muscle cells and proteins of the extracellular matrix directly regulate TGF-β signalling, this latter pathway emerges as a key component of thoracic aortic disease initiation and progression. These discoveries have revolutionized our understanding of thoracic aortic disease and provided inroads toward gene-specific stratification of treatment. Last, we outline how these genetic findings are translated into novel pharmaceutical approaches for thoracic aortic disease.
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Affiliation(s)
- Gregor Andelfinger
- Cardiovascular Genetics, Department of Pediatrics, Centre de Recherche du Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada.
| | - Bart Loeys
- Centre for Medical Genetics, University Hospital of Antwerp/University of Antwerp, Antwerp, Belgium; Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hal Dietz
- Howard Hughes Medical Institute and Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Division of Pediatric Cardiology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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44
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Goenezen S, Chivukula VK, Midgett M, Phan L, Rugonyi S. 4D subject-specific inverse modeling of the chick embryonic heart outflow tract hemodynamics. Biomech Model Mechanobiol 2015; 15:723-43. [PMID: 26361767 DOI: 10.1007/s10237-015-0720-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 08/17/2015] [Indexed: 01/10/2023]
Abstract
Blood flow plays a critical role in regulating embryonic cardiac growth and development, with altered flow leading to congenital heart disease. Progress in the field, however, is hindered by a lack of quantification of hemodynamic conditions in the developing heart. In this study, we present a methodology to quantify blood flow dynamics in the embryonic heart using subject-specific computational fluid dynamics (CFD) models. While the methodology is general, we focused on a model of the chick embryonic heart outflow tract (OFT), which distally connects the heart to the arterial system, and is the region of origin of many congenital cardiac defects. Using structural and Doppler velocity data collected from optical coherence tomography, we generated 4D ([Formula: see text]) embryo-specific CFD models of the heart OFT. To replicate the blood flow dynamics over time during the cardiac cycle, we developed an iterative inverse-method optimization algorithm, which determines the CFD model boundary conditions such that differences between computed velocities and measured velocities at one point within the OFT lumen are minimized. Results from our developed CFD model agree with previously measured hemodynamics in the OFT. Further, computed velocities and measured velocities differ by [Formula: see text]15 % at locations that were not used in the optimization, validating the model. The presented methodology can be used in quantifications of embryonic cardiac hemodynamics under normal and altered blood flow conditions, enabling an in-depth quantitative study of how blood flow influences cardiac development.
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Affiliation(s)
- Sevan Goenezen
- Department of Mechanical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Venkat Keshav Chivukula
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Madeline Midgett
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Ly Phan
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Sandra Rugonyi
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97239, USA.
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45
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Majkut S, Dingal PCDP, Discher DE. Stress sensitivity and mechanotransduction during heart development. Curr Biol 2015; 24:R495-501. [PMID: 24845682 DOI: 10.1016/j.cub.2014.04.027] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Early in embryogenesis, the heart begins its rhythmic contractions as a tube that helps perfuse the nascent vasculature, but the embryonic heart soon changes shape and mechanical properties, like many other developing organs. A key question in the field is whether stresses in development impact the underlying gene circuits and, if so, how? Here, we attempt to address this question as we review the mechanical maturation of heart - and, to a limited extent, lung and blood - with a focus on a few key abundant structural proteins whose expression dynamics have been suggested to be directly sensitive to mechanical stress. In heart maturation, proliferating fibroblasts deposit increasing amounts of collagenous matrix in parallel with cardiomyocytes expressing more sarcomeric proteins that increase the contractile stress and strength of the tissue, which in turn pumps more blood at higher stress throughout the developing vasculature. Feedback of beating cardiomyocytes on the expression of matrix by fibroblasts seems a reasonable model, with both synthesis and turnover of matrix and contractile elements achieving a suitable balance. Based on emerging evidence for coiled-coil biopolymers that are tension-stabilized against degradation, a minimal network model of a dynamic cell-matrix interaction is proposed. This same concept is extended to nuclear mechanics as regulated by stress on the nuclear structural proteins called lamins, which are examined in part because of the prominence of mutations in these coiled-coil proteins in diseases of the heart, amongst other organs/tissues. Variations in lamin levels during development and across adult tissues are to some extent known and appear to correlate with extracellular matrix mechanics, which we illustrate across heart, lung, and blood development. The formal perspective here on the mechanochemistry of tissue development and homeostasis could provide a useful framework for 'big data' quantitative biology, particularly of stress-sensitive differentiation, maturation, and disease processes.
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Affiliation(s)
- Stephanie Majkut
- Biophysical Engineering Laboratory, University of Pennsylvania, Philadelphia, PA 19104, USA; Physics and Astronomy Graduate Group, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - P C Dave P Dingal
- Biophysical Engineering Laboratory, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Dennis E Discher
- Biophysical Engineering Laboratory, University of Pennsylvania, Philadelphia, PA 19104, USA; Physics and Astronomy Graduate Group, University of Pennsylvania, Philadelphia, PA 19104, USA; Cell and Molecular Biology Graduate Group, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Jiménez-Amilburu V, Jong-Raadsen S, Bakkers J, Spaink HP, Marín-Juez R. GLUT12 deficiency during early development results in heart failure and a diabetic phenotype in zebrafish. J Endocrinol 2015; 224:1-15. [PMID: 25326603 DOI: 10.1530/joe-14-0539] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cardiomyopathies-associated metabolic pathologies (e.g., type 2 diabetes and insulin resistance) are a leading cause of mortality. It is known that the association between these pathologies works in both directions, for which heart failure can lead to metabolic derangements such as insulin resistance. This intricate crosstalk exemplifies the importance of a fine coordination between one of the most energy-demanding organs and an equilibrated carbohydrate metabolism. In this light, to assist in the understanding of the role of insulin-regulated glucose transporters (GLUTs) and the development of cardiomyopathies, we have developed a model for glut12 deficiency in zebrafish. GLUT12 is a novel insulin-regulated GLUT expressed in the main insulin-sensitive tissues, such as cardiac muscle, skeletal muscle, and adipose tissue. In this study, we show that glut12 knockdown impacts the development of the embryonic heart resulting in abnormal valve formation. Moreover, glut12-deficient embryos also exhibited poor glycemic control. Glucose measurements showed that these larvae were hyperglycemic and resistant to insulin administration. Transcriptome analysis demonstrated that a number of genes known to be important in cardiac development and function as well as metabolic mediators were dysregulated in these larvae. These results indicate that glut12 is an essential GLUT in the heart where the reduction in glucose uptake due to glut12 deficiency leads to heart failure presumably due to the lack of glucose as energy substrate. In addition, the diabetic phenotype displayed by these larvae after glut12 abrogation highlights the importance of this GLUT during early developmental stages.
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Affiliation(s)
- Vanesa Jiménez-Amilburu
- Institute of BiologyLeiden University, PO Box 9502, 2300 RA Leiden, The NetherlandsZF-screens BVJ.H. Oortweg 19, 2333 CH Leiden, The NetherlandsHubrecht Institute-KNAW and University Medical Center Utrecht and Interuniversity3584 CT Utrecht, The Netherlands
| | - Susanne Jong-Raadsen
- Institute of BiologyLeiden University, PO Box 9502, 2300 RA Leiden, The NetherlandsZF-screens BVJ.H. Oortweg 19, 2333 CH Leiden, The NetherlandsHubrecht Institute-KNAW and University Medical Center Utrecht and Interuniversity3584 CT Utrecht, The Netherlands
| | - Jeroen Bakkers
- Institute of BiologyLeiden University, PO Box 9502, 2300 RA Leiden, The NetherlandsZF-screens BVJ.H. Oortweg 19, 2333 CH Leiden, The NetherlandsHubrecht Institute-KNAW and University Medical Center Utrecht and Interuniversity3584 CT Utrecht, The Netherlands
| | - Herman P Spaink
- Institute of BiologyLeiden University, PO Box 9502, 2300 RA Leiden, The NetherlandsZF-screens BVJ.H. Oortweg 19, 2333 CH Leiden, The NetherlandsHubrecht Institute-KNAW and University Medical Center Utrecht and Interuniversity3584 CT Utrecht, The Netherlands
| | - Rubén Marín-Juez
- Institute of BiologyLeiden University, PO Box 9502, 2300 RA Leiden, The NetherlandsZF-screens BVJ.H. Oortweg 19, 2333 CH Leiden, The NetherlandsHubrecht Institute-KNAW and University Medical Center Utrecht and Interuniversity3584 CT Utrecht, The Netherlands
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Linask KK, Han M, Bravo-Valenzuela NJM. Changes in vitelline and utero-placental hemodynamics: implications for cardiovascular development. Front Physiol 2014; 5:390. [PMID: 25426076 PMCID: PMC4227466 DOI: 10.3389/fphys.2014.00390] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 09/21/2014] [Indexed: 12/31/2022] Open
Abstract
Analyses of cardiovascular development have shown an important interplay between heart function, blood flow, and morphogenesis of heart structure during the formation of a four-chambered heart. It is known that changes in vitelline and placental blood flow seemingly contribute substantially to early cardiac hemodynamics. This suggests that in order to understand mammalian cardiac structure-hemodynamic functional relationships, blood flow from the extra-embryonic circulation needs to be taken into account and its possible impact on cardiogenesis defined. Previously published Doppler ultrasound analyses and data of utero-placental blood flow from human studies and those using the mouse model are compared to changes observed with environmental exposures that lead to cardiovascular anomalies. Use of current concepts and models related to mechanotransduction of blood flow and fluid forces may help in the future to better define the characteristics of normal and abnormal utero-placental blood flow and the changes in the biophysical parameters that may contribute to congenital heart defects. Evidence from multiple studies is discussed to provide a framework for future modeling of the impact of experimental changes in blood flow on the mouse heart during normal and abnormal cardiogenesis.
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Affiliation(s)
- Kersti K Linask
- Department of Pediatrics, Morsani College of Medicine, Children's Research Institute, University of South Florida Health St. Petersburg, FL, USA
| | - Mingda Han
- Department of Pediatrics, Morsani College of Medicine, Children's Research Institute, University of South Florida Health St. Petersburg, FL, USA
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Lindsey SE, Butcher JT, Yalcin HC. Mechanical regulation of cardiac development. Front Physiol 2014; 5:318. [PMID: 25191277 DOI: 10.3389/fphys.2014.00318/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 08/03/2014] [Indexed: 05/25/2023] Open
Abstract
Mechanical forces are essential contributors to and unavoidable components of cardiac formation, both inducing and orchestrating local and global molecular and cellular changes. Experimental animal studies have contributed substantially to understanding the mechanobiology of heart development. More recent integration of high-resolution imaging modalities with computational modeling has greatly improved our quantitative understanding of hemodynamic flow in heart development. Merging these latest experimental technologies with molecular and genetic signaling analysis will accelerate our understanding of the relationships integrating mechanical and biological signaling for proper cardiac formation. These advances will likely be essential for clinically translatable guidance for targeted interventions to rescue malforming hearts and/or reconfigure malformed circulations for optimal performance. This review summarizes our current understanding on the levels of mechanical signaling in the heart and their roles in orchestrating cardiac development.
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Affiliation(s)
| | - Jonathan T Butcher
- Department of Biomedical Engineering, Cornell University Ithaca, NY, USA
| | - Huseyin C Yalcin
- Department of Mechanical Engineering, Dogus University Istanbul, Turkey
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49
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Lindsey SE, Butcher JT, Yalcin HC. Mechanical regulation of cardiac development. Front Physiol 2014; 5:318. [PMID: 25191277 PMCID: PMC4140306 DOI: 10.3389/fphys.2014.00318] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 08/03/2014] [Indexed: 12/21/2022] Open
Abstract
Mechanical forces are essential contributors to and unavoidable components of cardiac formation, both inducing and orchestrating local and global molecular and cellular changes. Experimental animal studies have contributed substantially to understanding the mechanobiology of heart development. More recent integration of high-resolution imaging modalities with computational modeling has greatly improved our quantitative understanding of hemodynamic flow in heart development. Merging these latest experimental technologies with molecular and genetic signaling analysis will accelerate our understanding of the relationships integrating mechanical and biological signaling for proper cardiac formation. These advances will likely be essential for clinically translatable guidance for targeted interventions to rescue malforming hearts and/or reconfigure malformed circulations for optimal performance. This review summarizes our current understanding on the levels of mechanical signaling in the heart and their roles in orchestrating cardiac development.
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Affiliation(s)
| | - Jonathan T Butcher
- Department of Biomedical Engineering, Cornell University Ithaca, NY, USA
| | - Huseyin C Yalcin
- Department of Mechanical Engineering, Dogus University Istanbul, Turkey
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50
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Venous endothelin guides sympathetic innervation of the developing mouse heart. Nat Commun 2014; 5:3918. [PMID: 24875861 PMCID: PMC4080092 DOI: 10.1038/ncomms4918] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 04/18/2014] [Indexed: 01/09/2023] Open
Abstract
The mechanisms responsible for establishing correct target innervation during organ development are largely unknown. Sympathetic nerves traverse or follow blood vessels to reach their end-organs, suggesting the existence of vascular guidance cues that direct axonal extension. The sinoatrial node and the ventricle of the heart receive sympathetic innervation from the stellate ganglia (STG). Here we show that STG axons follow veins, specifically the superior vena cavae and sinus venosus, to reach these targets. We find that the election of these routes is determined by venous endothelium-derived endothelin-1, acting through its specific receptor Ednra expressed within a subpopulation of STG neurons. Furthermore, we demonstrate that Edn1-Ednra signaling is essential for functional regulation of the heart by sympathetic nerves. Our findings present venous Edn1 as a sympathetic guidance cue, and show how axon guidance mechanisms are coordinated with end-organ morphogenesis.
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