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Dinakaran S, Zhao H, Tang Y, Wang Z, Ruiz S, Nomura-Kitabayashi A, Blanc L, Faughnan ME, Marambaud P. CDK6-mediated endothelial cell cycle acceleration drives arteriovenous malformations in hereditary hemorrhagic telangiectasia. bioRxiv 2023:2023.09.15.554413. [PMID: 37745444 PMCID: PMC10515892 DOI: 10.1101/2023.09.15.554413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Increased endothelial cell (EC) proliferation is a hallmark of arteriovenous malformations (AVMs) in hereditary hemorrhagic telangiectasia (HHT). The underlying mechanism and disease relevance of this abnormal cell proliferative state of the ECs remain unknown. Here, we report the identification of a CDK6-driven mechanism of cell cycle progression deregulation directly involved in EC proliferation and HHT vascular pathology. Specifically, HHT mouse liver ECs exhibited defects in their cell cycle control characterized by a G1/S checkpoint bypass and acceleration of cell cycle speed. Phosphorylated retinoblastoma (p-RB1)-a marker of G1/S transition through the restriction point-significantly accumulated in ECs of HHT mouse retinal AVMs and HHT patient skin telangiectasias. Mechanistically, ALK1 loss of function increased the expression of key restriction point mediators, and treatment with palbociclib or ribociclib, two CDK4/6 inhibitors, blocked p-RB1 increase and retinal AVMs in HHT mice. Palbociclib also improved vascular pathology in the brain and slowed down endothelial cell cycle speed and EC proliferation. Specific deletion of Cdk6 in ECs was sufficient to protect HHT mice from AVM pathology. Thus, CDK6-mediated endothelial cell cycle acceleration controls EC proliferation in AVMs and is a central determinant of HHT pathogenesis. We propose that clinically approved CDK4/6 inhibitors have repurposing potential in HHT.
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Affiliation(s)
- Sajeth Dinakaran
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Haitian Zhao
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
| | - Yuefeng Tang
- Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
| | - Zhimin Wang
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
| | - Santiago Ruiz
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
| | - Aya Nomura-Kitabayashi
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
| | - Lionel Blanc
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
- Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
- Division of Pediatrics Hematology/Oncology, Cohen Children’s Medical Center, New Hyde Park, New York, USA
| | - Marie E. Faughnan
- Toronto HHT Centre, St. Michael’s Hospital and Li Ka Shing Knowledge Institute, Toronto, Canada
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Canada
| | - Philippe Marambaud
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
- Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
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Zhou X, Pucel JC, Nomura-Kitabayashi A, Chandakkar P, Guidroz AP, Jhangiani NL, Bao D, Fan J, Arthur HM, Ullmer C, Klein C, Marambaud P, Meadows SM. ANG2 Blockade Diminishes Proangiogenic Cerebrovascular Defects Associated With Models of Hereditary Hemorrhagic Telangiectasia. Arterioscler Thromb Vasc Biol 2023; 43:1384-1403. [PMID: 37288572 PMCID: PMC10524982 DOI: 10.1161/atvbaha.123.319385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 05/16/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Hereditary hemorrhagic telangiectasia (HHT) is a vascular disorder characterized by arteriovenous malformations and blood vessel enlargements. However, there are no effective drug therapies to combat arteriovenous malformation formation in patients with HHT. Here, we aimed to address whether elevated levels of ANG2 (angiopoietin-2) in the endothelium is a conserved feature in mouse models of the 3 major forms of HHT that could be neutralized to treat brain arteriovenous malformations and associated vascular defects. In addition, we sought to identify the angiogenic molecular signature linked to HHT. METHODS Cerebrovascular defects, including arteriovenous malformations and increased vessel calibers, were characterized in mouse models of the 3 common forms of HHT using transcriptomic and dye injection labeling methods. RESULTS Comparative RNA sequencing analyses of isolated brain endothelial cells revealed a common, but unique proangiogenic transcriptional program associated with HHT. This included a consistent upregulation in cerebrovascular expression of ANG2 and downregulation of its receptor Tyr kinase with Ig and EGF homology domains (TIE2/TEK) in HHT mice compared with controls. Furthermore, in vitro experiments revealed TEK signaling activity was hampered in an HHT setting. Pharmacological blockade of ANG2 improved brain vascular pathologies in all HHT models, albeit to varying degrees. Transcriptomic profiling further indicated that ANG2 inhibition normalized the brain vasculature by impacting a subset of genes involved in angiogenesis and cell migration processes. CONCLUSIONS Elevation of ANG2 in the brain vasculature is a shared trait among the mouse models of the common forms of HHT. Inhibition of ANG2 activity can significantly limit or prevent brain arteriovenous malformation formation and blood vessel enlargement in HHT mice. Thus, ANG2-targeted therapies may represent a compelling approach to treat arteriovenous malformations and vascular pathologies related to all forms of HHT.
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Affiliation(s)
- Xingyan Zhou
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA, USA
| | - Jenna C. Pucel
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA, USA
| | - Aya Nomura-Kitabayashi
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Pallavi Chandakkar
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Adella P. Guidroz
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA, USA
| | - Nikita L. Jhangiani
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA, USA
| | - Duran Bao
- Biochemistry and Molecular Biology Department, Tulane University School of Medicine, New Orleans, LA, USA
| | - Jia Fan
- Biochemistry and Molecular Biology Department, Tulane University School of Medicine, New Orleans, LA, USA
| | - Helen M. Arthur
- Biosciences Institute, Center for Life, Newcastle University, Newcastle NE1 3BZ, UK
| | | | | | - Philippe Marambaud
- Litwin-Zucker Alzheimer’s Research Center, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Stryder M. Meadows
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA, USA
- Tulane Brain Institute, Tulane University, New Orleans, LA, USA
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Santini MP, Malide D, Hoffman G, Pandey G, D'Escamard V, Nomura-Kitabayashi A, Rovira I, Kataoka H, Ochando J, Harvey RP, Finkel T, Kovacic JC. Tissue-Resident PDGFRα + Progenitor Cells Contribute to Fibrosis versus Healing in a Context- and Spatiotemporally Dependent Manner. Cell Rep 2021; 30:555-570.e7. [PMID: 31940496 DOI: 10.1016/j.celrep.2019.12.045] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 03/11/2019] [Accepted: 12/12/2019] [Indexed: 11/24/2022] Open
Abstract
PDGFRα+ mesenchymal progenitor cells are associated with pathological fibro-adipogenic processes. Conversely, a beneficial role for these cells during homeostasis or in response to revascularization and regeneration stimuli is suggested, but remains to be defined. We studied the molecular profile and function of PDGFRα+ cells in order to understand the mechanisms underlying their role in fibrosis versus regeneration. We show that PDGFRα+ cells are essential for tissue revascularization and restructuring through injury-stimulated remodeling of stromal and vascular components, context-dependent clonal expansion, and ultimate removal of pro-fibrotic PDGFRα+-derived cells. Tissue ischemia modulates the PDGFRα+ phenotype toward cells capable of remodeling the extracellular matrix and inducing cell-cell and cell-matrix adhesion, likely favoring tissue repair. Conversely, pathological healing occurs if PDGFRα+-derived cells persist as terminally differentiated mesenchymal cells. These studies support a context-dependent "yin-yang" biology of tissue-resident mesenchymal progenitor cells, which possess an innate ability to limit injury expansion while also promoting fibrosis in an unfavorable environment.
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Affiliation(s)
- Maria Paola Santini
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai (ISMMS), New York, NY 10029, USA.
| | - Daniela Malide
- Light Microscopy Core Facility, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Gabriel Hoffman
- Icahn Institute for Data Science and Genomic Technology, ISMMS, New York, NY 10029, USA
| | - Gaurav Pandey
- Icahn Institute for Data Science and Genomic Technology, ISMMS, New York, NY 10029, USA
| | - Valentina D'Escamard
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai (ISMMS), New York, NY 10029, USA
| | - Aya Nomura-Kitabayashi
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai (ISMMS), New York, NY 10029, USA
| | - Ilsa Rovira
- Center for Molecular Medicine, NHLBI, NIH, Bethesda, MD 20892, USA
| | | | - Jordi Ochando
- Department of Medicine and Oncological Sciences, ISMMS, New York, NY 10029, USA
| | - Richard P Harvey
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia; St. Vincent's Clinical School, UNSW Sydney, Kensington, NSW 2052, Australia; Stem Cells Australia, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Toren Finkel
- Aging Institute, University of Pittsburgh/UPMC, 100 Technology Drive, Pittsburgh, PA 15219, USA
| | - Jason C Kovacic
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai (ISMMS), New York, NY 10029, USA.
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Ruiz S, Zhao H, Chandakkar P, Papoin J, Choi H, Nomura-Kitabayashi A, Patel R, Gillen M, Diao L, Chatterjee PK, He M, Al-Abed Y, Wang P, Metz CN, Oh SP, Blanc L, Campagne F, Marambaud P. Correcting Smad1/5/8, mTOR, and VEGFR2 treats pathology in hereditary hemorrhagic telangiectasia models. J Clin Invest 2020; 130:942-957. [PMID: 31689244 DOI: 10.1172/jci127425] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 10/31/2019] [Indexed: 12/17/2022] Open
Abstract
Hereditary hemorrhagic telangiectasia (HHT), a genetic bleeding disorder leading to systemic arteriovenous malformations (AVMs), is caused by loss-of-function mutations in the ALK1/ENG/Smad1/5/8 pathway. Evidence suggests that HHT pathogenesis strongly relies on overactivated PI3K/Akt/mTOR and VEGFR2 pathways in endothelial cells (ECs). In the BMP9/10-immunoblocked (BMP9/10ib) neonatal mouse model of HHT, we report here that the mTOR inhibitor, sirolimus, and the receptor tyrosine kinase inhibitor, nintedanib, could synergistically fully block, but also reversed, retinal AVMs to avert retinal bleeding and anemia. Sirolimus plus nintedanib prevented vascular pathology in the oral mucosa, lungs, and liver of the BMP9/10ib mice, as well as significantly reduced gastrointestinal bleeding and anemia in inducible ALK1-deficient adult mice. Mechanistically, in vivo in BMP9/10ib mouse ECs, sirolimus and nintedanib blocked the overactivation of mTOR and VEGFR2, respectively. Furthermore, we found that sirolimus activated ALK2-mediated Smad1/5/8 signaling in primary ECs - including in HHT patient blood outgrowth ECs - and partially rescued Smad1/5/8 activity in vivo in BMP9/10ib mouse ECs. These data demonstrate that the combined correction of endothelial Smad1/5/8, mTOR, and VEGFR2 pathways opposes HHT pathogenesis. Repurposing of sirolimus plus nintedanib might provide therapeutic benefit in patients with HHT.
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Affiliation(s)
- Santiago Ruiz
- Litwin-Zucker Center for Alzheimer's Disease and Memory Disorders and
| | - Haitian Zhao
- Litwin-Zucker Center for Alzheimer's Disease and Memory Disorders and
| | | | - Julien Papoin
- Center for Autoimmune, Musculoskeletal and Hematopoietic Diseases, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
| | - Hyunwoo Choi
- Barrow Aneurysm and AVM Research Center, Department of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona, USA
| | | | - Radhika Patel
- Litwin-Zucker Center for Alzheimer's Disease and Memory Disorders and
| | - Matthew Gillen
- Litwin-Zucker Center for Alzheimer's Disease and Memory Disorders and
| | - Li Diao
- Center for Immunology and Inflammation
| | | | - Mingzhu He
- Center for Molecular Innovation, The Feinstein Institutes for Medical Research, Manhasset, New York, USA
| | - Yousef Al-Abed
- Center for Molecular Innovation, The Feinstein Institutes for Medical Research, Manhasset, New York, USA.,Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Ping Wang
- Center for Immunology and Inflammation.,Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Christine N Metz
- Institute of Molecular Medicine, and.,Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - S Paul Oh
- Barrow Aneurysm and AVM Research Center, Department of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona, USA
| | - Lionel Blanc
- Center for Autoimmune, Musculoskeletal and Hematopoietic Diseases, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA.,Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Fabien Campagne
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine and.,Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, USA
| | - Philippe Marambaud
- Litwin-Zucker Center for Alzheimer's Disease and Memory Disorders and.,Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
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Abstract
We introduced the vascular remodeling mouse system induced by the wire injury to investigate the molecular and cellular mechanisms of cardiovascular diseases. Using these models, we focus on the adventitial cell population in the outermost layer of the adult vasculature as a vascular progenitor niche. Firstly we used the standard wire injury approach, leaving the wire for 1 min in the artery and retracting the wire by twisting out to expand the artery and denude the inner layer endothelial cells in the both peripheral artery and femoral artery. This method leads to adventitial lineage cell accumulation on the medial-adventitial border, but no contribution into the hyperplastic neointima. Since advanced atherosclerotic plaques in the mouse models and human clinical specimens show the elastic lamina in the media broken, we hypothesized that adventitial lineage cells contribute to acute neointima formation induced by the mechanical damage in both endothelial and medial layers. To make this intensive damage, next, we used the bigger diameter wire with no hydrophilic coating and repeated the ten-times insertion and retraction of the wire after leaving for 1 min in the femoral artery. The additional ten-times intensive movements of the wire lead to breakdown and rupture of the elastic lamina together with a contribution of adventitial lineage cells to the hyperplastic neointima. Here we describe these two different wire injury methods to induce different types of vascular remodeling at the point of adventitial lineage cell contribution to the hyperplastic neointima by targeting two separate locations of hind limb artery, the peripheral artery and femoral artery, and using two different diameter wires.
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Affiliation(s)
- Aya Nomura-Kitabayashi
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Jason C Kovacic
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Evrard SM, Lecce L, Michelis KC, Nomura-Kitabayashi A, Pandey G, Purushothaman KR, d'Escamard V, Li JR, Hadri L, Fujitani K, Moreno PR, Benard L, Rimmele P, Cohain A, Mecham B, Randolph GJ, Nabel EG, Hajjar R, Fuster V, Boehm M, Kovacic JC. Corrigendum: Endothelial to mesenchymal transition is common in atherosclerotic lesions and is associated with plaque instability. Nat Commun 2017; 8:14710. [PMID: 28205517 PMCID: PMC5316888 DOI: 10.1038/ncomms14710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Nature Communications 8: Article number: 11853 (2016); Published: 24 June 2016; Updated: 16 February 2017 In this Article, the catalogue number for the anti-Fap-Alexa Fluor 647 antibody is listed incorrectly and should have read bs-5758R-A647 instead of bs-5760R-A647.
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Evrard SM, Lecce L, Michelis KC, Nomura-Kitabayashi A, Pandey G, Purushothaman KR, d'Escamard V, Li JR, Hadri L, Fujitani K, Moreno PR, Benard L, Rimmele P, Cohain A, Mecham B, Randolph GJ, Nabel EG, Hajjar R, Fuster V, Boehm M, Kovacic JC. Endothelial to mesenchymal transition is common in atherosclerotic lesions and is associated with plaque instability. Nat Commun 2016; 7:11853. [PMID: 27340017 PMCID: PMC4931033 DOI: 10.1038/ncomms11853] [Citation(s) in RCA: 350] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 05/05/2016] [Indexed: 02/08/2023] Open
Abstract
Endothelial to mesenchymal transition (EndMT) plays a major role during development, and also contributes to several adult cardiovascular diseases. Importantly, mesenchymal cells including fibroblasts are prominent in atherosclerosis, with key functions including regulation of: inflammation, matrix and collagen production, and plaque structural integrity. However, little is known about the origins of atherosclerosis-associated fibroblasts. Here we show using endothelial-specific lineage-tracking that EndMT-derived fibroblast-like cells are common in atherosclerotic lesions, with EndMT-derived cells expressing a range of fibroblast-specific markers. In vitro modelling confirms that EndMT is driven by TGF-β signalling, oxidative stress and hypoxia; all hallmarks of atherosclerosis. 'Transitioning' cells are readily detected in human plaques co-expressing endothelial and fibroblast/mesenchymal proteins, indicative of EndMT. The extent of EndMT correlates with an unstable plaque phenotype, which appears driven by altered collagen-MMP production in EndMT-derived cells. We conclude that EndMT contributes to atherosclerotic patho-biology and is associated with complex plaques that may be related to clinical events.
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Affiliation(s)
- Solene M. Evrard
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Laura Lecce
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Katherine C. Michelis
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Aya Nomura-Kitabayashi
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Gaurav Pandey
- Department of Genetics and Genomic Sciences and Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - K-Raman Purushothaman
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Valentina d'Escamard
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Jennifer R. Li
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Lahouaria Hadri
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Kenji Fujitani
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Pedro R. Moreno
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Ludovic Benard
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Pauline Rimmele
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Ariella Cohain
- Department of Genetics and Genomic Sciences and Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | | | - Gwendalyn J. Randolph
- Department of Pathology and Immunology, Washington University, St Louis, Missouri 63110, USA
| | | | - Roger Hajjar
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Valentin Fuster
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Marie-Josée and Henry R. Kravis Cardiovascular Health Center, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - Manfred Boehm
- Center for Molecular Medicine, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, 20892, USA
| | - Jason C. Kovacic
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
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Zhang L, Nomura-Kitabayashi A, Sultana N, Cai W, Cai X, Moon AM, Cai CL. Mesodermal Nkx2.5 is necessary and sufficient for early second heart field development. Dev Biol 2014; 390:68-79. [PMID: 24613616 DOI: 10.1016/j.ydbio.2014.02.023] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 02/13/2014] [Accepted: 02/24/2014] [Indexed: 12/23/2022]
Abstract
The vertebrate heart develops from mesoderm and requires inductive signals secreted from early endoderm. During embryogenesis, Nkx2.5 acts as a key transcription factor and plays essential roles for heart formation from Drosophila to human. In mice, Nkx2.5 is expressed in the early first heart field, second heart field pharyngeal mesoderm, as well as pharyngeal endodermal cells underlying the second heart field. Currently, the specific requirements for Nkx2.5 in the endoderm versus mesoderm with regard to early heart formation are incompletely understood. Here, we performed tissue-specific deletion in mice to dissect the roles of Nkx2.5 in the pharyngeal endoderm and mesoderm. We found that heart development appeared normal after endodermal deletion of Nkx2.5 whereas mesodermal deletion engendered cardiac defects almost identical to those observed on Nkx2.5 null embryos (Nkx2.5(-/-)). Furthermore, re-expression of Nkx2.5 in the mesoderm rescued Nkx2.5(-/-) heart defects. Our findings reveal that Nkx2.5 in the mesoderm is essential while endodermal expression is dispensable for early heart formation in mammals.
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Affiliation(s)
- Lu Zhang
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Aya Nomura-Kitabayashi
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Nishat Sultana
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Weibin Cai
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Xiaoqiang Cai
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Anne M Moon
- Weis Center for Research, 100 North Academy Avenue, Danville, PA 17822, USA
| | - Chen-Leng Cai
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA.
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9
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Dangas GD, Maehara A, Evrard SM, Sartori S, Li JR, Chirumamilla AP, Nomura-Kitabayashi A, Gukathasan N, Hassanin A, Baber U, Fahy M, Fuster V, Mintz GS, Kovacic JC. Coronary artery calcification is inversely related to body morphology in patients with significant coronary artery disease: a three-dimensional intravascular ultrasound study. Eur Heart J Cardiovasc Imaging 2013; 15:201-9. [PMID: 23904334 DOI: 10.1093/ehjci/jet139] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
AIMS Emerging data have indicated unexpected complexity in the regulation of vascular and bone calcification. In particular, several recent studies have challenged the concept of a universally positive relationship between body morphology [weight, height, body mass index (BMI), body surface area (BSA)] and the extent of vascular calcification. We sought to clarify these discrepancies and investigated the relationship between index lesion coronary artery calcification (CAC) and body morphology in patients undergoing percutaneous coronary intervention (PCI) using three-dimensional intravascular ultrasound (IVUS). METHODS AND RESULTS We analysed CAC in patients who underwent PCI with pre-intervention IVUS imaging. The main outcome measure was the calcium index (CalcIndex); a three-dimensional IVUS-derived measure of total calcification per obstructive coronary lesion. A total of 346 patients (65.3 ± 10.6 years; 29.5% females) underwent PCI with IVUS-based CAC assessment. CalcIndex was categorized as zero-low (0-0.1399; n = 152) or intermediate-high (0.1400-1.2541; n = 194). All measures of body morphology were lower in patients with intermediate-high CalcIndex (height, P = 0.024; weight, P = 0.008; BMI, P = 0.064; BSA, P = 0.005). In adjusted multivariable models, weight and BSA were independent inverse predictors of intermediate-high CalcIndex [weight: odds ratio (OR) 0.986, P = 0.017; BSA: OR 0.323, P = 0.012] while CalcIndex also trended towards an inverse association with both height (P = 0.068) and BMI (P = 0.064). These independent inverse associations were consistent across multiple clinical subgroups, including stratification by age, race, gender, diabetes, and renal impairment. CONCLUSION Using three-dimensional IVUS to assess vascular calcification, these data confirm an independent, inverse relationship between body size and index lesion CAC in patients with obstructive coronary artery disease.
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10
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Pereira CF, Chang B, Qiu J, Niu X, Papatsenko D, Hendry CE, Clark NR, Nomura-Kitabayashi A, Kovacic JC, Ma'ayan A, Schaniel C, Lemischka IR, Moore K. Induction of a hemogenic program in mouse fibroblasts. Cell Stem Cell 2013; 13:205-18. [PMID: 23770078 DOI: 10.1016/j.stem.2013.05.024] [Citation(s) in RCA: 176] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 05/16/2013] [Accepted: 05/29/2013] [Indexed: 12/21/2022]
Abstract
Definitive hematopoiesis emerges during embryogenesis via an endothelial-to-hematopoietic transition. We attempted to induce this process in mouse fibroblasts by screening a panel of factors for hemogenic activity. We identified a combination of four transcription factors, Gata2, Gfi1b, cFos, and Etv6, that efficiently induces endothelial-like precursor cells, with the subsequent appearance of hematopoietic cells. The precursor cells express a human CD34 reporter, Sca1, and Prominin1 within a global endothelial transcription program. Emergent hematopoietic cells possess nascent hematopoietic stem cell gene-expression profiles and cell-surface phenotypes. After transgene silencing and reaggregation culture, the specified cells generate hematopoietic colonies in vitro. Thus, we show that a simple combination of transcription factors is sufficient to induce a complex, dynamic, and multistep developmental program in vitro. These findings provide insights into the specification of definitive hemogenesis and a platform for future development of patient-specific stem and progenitor cells, as well as more-differentiated blood products.
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Affiliation(s)
- Carlos-Filipe Pereira
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1496, New York, NY 10029, USA.
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11
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Cai X, Nomura-Kitabayashi A, Cai W, Yan J, Christoffels VM, Cai CL. Myocardial Tbx20 regulates early atrioventricular canal formation and endocardial epithelial-mesenchymal transition via Bmp2. Dev Biol 2011; 360:381-90. [PMID: 21983003 PMCID: PMC3217163 DOI: 10.1016/j.ydbio.2011.09.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 09/05/2011] [Accepted: 09/21/2011] [Indexed: 01/18/2023]
Abstract
During early embryogenesis, the formation of the cardiac atrioventricular canal (AVC) facilitates the transition of the heart from a linear tube into a chambered organ. However, the genetic pathways underlying this developmental process are poorly understood. The T-box transcription factor Tbx20 is expressed predominantly in the AVC of early heart tube. It was shown that Tbx20 activates Nmyc1 and suppresses Tbx2 expression to promote proliferation and specification of the atrial and ventricular chambers, yet it is not known if Tbx20 is involved in early AVC development. Here, we report that mice lacking Tbx20 in the AVC myocardium fail to form the AVC constriction, and the endocardial epithelial-mesenchymal transition (EMT) is severely perturbed. Tbx20 maintains expression of a variety of genes, including Bmp2, Tbx3 and Hand1 in the AVC myocardium. Intriguingly, we found Bmp2 downstream genes involved in the EMT initiation are also downregulated. In addition, re-expression of Bmp2 in the AVC myocardium substantially rescues the EMT defects resulting from the lack of Tbx20, suggesting Bmp2 is one of the key downstream targets of Tbx20 in AVC development. Our data support a complex signaling network with Tbx20 suppressing Tbx2 in the AVC myocardium but also indirectly promoting Tbx2 expression through Bmp2. The spatiotemporal expression of Tbx2 in the AVC appears to be balanced between these two opposing signals. Overall, our study provides genetic evidence that Tbx20 has essential roles in regulating AVC development that coordinate early cardiac chamber formation.
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Affiliation(s)
- Xiaoqiang Cai
- Department of Developmental and Regenerative Biology, Center for Molecular Cardiology, the Child Health and Development Institute and the Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Aya Nomura-Kitabayashi
- Department of Developmental and Regenerative Biology, Center for Molecular Cardiology, the Child Health and Development Institute and the Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Weibin Cai
- Department of Developmental and Regenerative Biology, Center for Molecular Cardiology, the Child Health and Development Institute and the Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Jianyun Yan
- Department of Developmental and Regenerative Biology, Center for Molecular Cardiology, the Child Health and Development Institute and the Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Vincent M. Christoffels
- Heart Failure Research Center, Academic Medical Center, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands
| | - Chen-Leng Cai
- Department of Developmental and Regenerative Biology, Center for Molecular Cardiology, the Child Health and Development Institute and the Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
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12
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Nomura-Kitabayashi A, Phoon CKL, Kishigami S, Rosenthal J, Yamauchi Y, Abe K, Yamamura KI, Samtani R, Lo CW, Mishina Y. Outflow tract cushions perform a critical valve-like function in the early embryonic heart requiring BMPRIA-mediated signaling in cardiac neural crest. Am J Physiol Heart Circ Physiol 2009; 297:H1617-28. [PMID: 19717734 DOI: 10.1152/ajpheart.00304.2009] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Neural crest-specific ablation of BMP type IA receptor (BMPRIA) causes embryonic lethality by embryonic day (E) 12.5, and this was previously postulated to arise from a myocardial defect related to signaling by a small population of cardiac neural crest cells (cNCC) in the epicardium. However, as BMP signaling via cNCC is also required for proper development of the outflow tract cushions, precursors to the semilunar valves, a plausible alternate or additional hypothesis is that heart failure may result from an outflow tract cushion defect. To investigate whether the outflow tract cushions may serve as dynamic valves in regulating hemodynamic function in the early embryo, in this study we used noninvasive ultrasound biomicroscopy-Doppler imaging to quantitatively assess hemodynamic function in mouse embryos with P0-Cre transgene mediated neural crest ablation of Bmpr1a (P0 mutants). Similar to previous studies, the neural crest-deleted Bmpr1a P0 mutants died at approximately E12.5, exhibiting persistent truncus arteriosus, thinned myocardium, and congestive heart failure. Surprisingly, our ultrasound analyses showed normal contractile indices, heart rate, and atrioventricular conduction in the P0 mutants. However, reversed diastolic arterial blood flow was detected as early as E11.5, with cardiovascular insufficiency and death rapidly ensuing by E12.5. Quantitative computed tomography showed thinning of the outflow cushions, and this was associated with a marked reduction in cell proliferation. These results suggest BMP signaling to cNCC is required for growth of the outflow tract cushions. This study provides definitive evidence that the outflow cushions perform a valve-like function critical for survival of the early mouse embryo.
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Affiliation(s)
- Aya Nomura-Kitabayashi
- Laboratory of Reproductive and Developmental Toxicology, National Institutes of Environmental Health Science, National Institutes of Health, Research Triangle Park, North Carolina, USA
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13
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Nomura-Kitabayashi A, Anderson GA, Sleep G, Mena J, Karabegovic A, Karamath S, Letarte M, Puri MC. Endoglin is dispensable for angiogenesis, but required for endocardial cushion formation in the midgestation mouse embryo. Dev Biol 2009; 335:66-77. [PMID: 19703439 DOI: 10.1016/j.ydbio.2009.08.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 07/27/2009] [Accepted: 08/15/2009] [Indexed: 11/16/2022]
Abstract
Vascular patterning depends on precisely coordinated timing of endothelial cell differentiation and onset of cardiac function. Endoglin is a transmembrane receptor for members of the TGF-beta superfamily that is expressed on endothelial cells from early embryonic gestation to adult life. Heterozygous loss of function mutations in human ENDOGLIN cause Hereditary Hemorrhagic Telangiectasia Type 1, a vascular disorder characterized by arteriovenous malformations that lead to hemorrhage and stroke. Endoglin null mice die in embryogenesis with numerous lesions in the cardiovascular tree including incomplete yolk sac vessel branching and remodeling, vessel dilation, hemorrhage and abnormal cardiac morphogenesis. Since defects in multiple cardiovascular tissues confound interpretations of these observations, we performed in vivo chimeric rescue analysis using Endoglin null embryonic stem cells. We demonstrate that Endoglin is required cell autonomously for endocardial to mesenchymal transition during formation of the endocardial cushions. Endoglin null cells contribute widely to endothelium in chimeric embryos rescued from cardiac development defects, indicating that Endoglin is dispensable for angiogenesis and vascular remodeling in the midgestation embryo, but is required for early patterning of the heart.
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Affiliation(s)
- Aya Nomura-Kitabayashi
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada M4N-3M5
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14
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Kishigami S, Komatsu Y, Takeda H, Nomura-Kitabayashi A, Yamauchi Y, Abe K, Yamamura KI, Mishina Y. Optimized beta-galactosidase staining method for simultaneous detection of endogenous gene expression in early mouse embryos. Genesis 2006; 44:57-65. [PMID: 16419090 DOI: 10.1002/gene.20186] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
beta-Galactosidase (beta-gal) is one of the popular reporters for detecting the expression of endogenous or exogenous genes. Here we report 6-chloro-3-indoxyl-beta-D-galactopyranoside (S-gal) is more sensitive for beta-gal activity than 5-bromo-4-chloro-3-indolyl-beta-D-galactoside (X-gal), particularly during the early developmental stages of mouse embryos. Further, we successfully combined beta-gal staining with S-gal and in situ hybridization using DIG-labeled probes in both whole and sections of early stage embryos due to the sensitivity and color compatibility of S-gal.
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Affiliation(s)
- Satoshi Kishigami
- Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
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15
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Nomura-Kitabayashi A, Takahashi Y, Kitajima S, Inoue T, Takeda H, Saga Y. Hypomorphic Mesp allele distinguishes establishment of rostrocaudal polarity and segment border formation in somitogenesis. Development 2002; 129:2473-81. [PMID: 11973278 DOI: 10.1242/dev.129.10.2473] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A bHLH-type transcription factor, Mesp2, plays an essential role in somite segmentation in mice. Zebrafish mespb (mesp-b), a putative homologue of mouse Mesp2, is transiently expressed in the rostral presomitic mesoderm similarly to Mesp2. To determine whether zebrafish mespb is a functional homologue of mouse Mesp2, zebrafish mespb was introduced into the mouse Mesp2 locus by homologous recombination. Introduced mespb almost rescued the Mesp2 deficiency in the homozygous mespb knockin mouse, indicating that mespb is a functional homologue of mouse Mesp2. Segmented somites were clearly observed although the partial fusion of the vertebral columns still occurred. Interestingly, however, the nature and dosage of the mespb gene affected the rescue event. A mouse line, which has a hypomorphic Mesp2 allele generated by the introduction of neo-mespb, gave rise to an epithelial somite without normal rostrocaudal (RC) polarity. RC polarity was also lacking in the presomitic mesoderm. The defects in RC polarity were determined by the altered expressions of Uncx4.1 and Dll1 in the segmented somites and presomitic mesoderm, respectively. In contrast, the expression of EphA4 (Epha4), lunatic fringe or protocadherin, thought to be involved in segment border formation, was fairly normal in hypomorphic mutant embryos. These results suggest that the Mesp family of transcription factors is involved in both segment border formation and establishment of RC polarity through different genetic cascades.
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Affiliation(s)
- Aya Nomura-Kitabayashi
- Cellular and Molecular Toxicology Division, National Institute of Health Sciences, 1-18-1 Kamiyohga, Setagaya-ku, Tokyo 158-8501, Japan
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16
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Kusuda J, Hirai M, Toyoda A, Tanuma R, Nomura-Kitabayashi A, Hashimoto K. Cloning and chromosomal localization of a paralog and a mouse homolog of the human transaldolase gene. Gene X 1998; 209:13-21. [PMID: 9524206 DOI: 10.1016/s0378-1119(97)00639-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A sequence homologous to the transaldolase gene (TALDO) was identified in a polymorphic cosmid DNA mapped on human chromosome 11p15 by exon trapping with pSPL3. Analysis of lambda clones contiguous to the cosmid clone showed that the related gene (TALDOR) consists of 8 exons spanning approximately 19kb from the translation start site to the polyadenylation signal. The exon sequence of TALDOR was almost identical with that of TALDO localized on 1p33-34. 1, but its exons corresponding to exons 4 and 5 of TALDO were found to be split by 4 introns in TALDOR. To examine the evolutionary conservation of two genes for transaldolase, we have isolated the cDNA for its mouse homolog and determined the nucleotide sequence covering the complete coding region. Fluorescence in situ hybridization using the cDNA as a probe showed that the mouse transaldolase gene (Taldo) is localized on chromosome 7 F3-F4 as a single copy gene. This chromosomal region is known to be syntenic to human chromosome 11p15 rather than to 1p33-p34.1, suggesting that TALDOR is the ancestral form. The existence of TALDOR implies a duplication of the mammalian transaldolase gene after divergence of rodent and primate.
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Affiliation(s)
- J Kusuda
- Division of Genetic Resources, National Institute of Infectious Diseases, 1-23-1, Toyama-cho, Shinjuku-ku, Tokyo 162, Japan.
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