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Li J, Song X, Liao X, Shi Y, Chen H, Xiao Q, Liu F, Zhan J, Cai Y. Adaptive enzyme-responsive self-assembling multivalent apelin ligands for targeted myocardial infarction therapy. J Control Release 2024; 372:571-586. [PMID: 38897292 DOI: 10.1016/j.jconrel.2024.06.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 06/06/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
Microvascular dysfunction following myocardial infarction exacerbates coronary flow obstruction and impairs the preservation of ventricular function. The apelinergic system, known for its pleiotropic effects on improving vascular function and repairing ischemic myocardium, has emerged as a promising therapeutic target for myocardial infarction. Despite its potential, the natural apelin peptide has an extremely short circulating half-life. Current apelin analogs have limited receptor binding efficacy and poor targeting, which restricts their clinical applications. In this study, we utilized an enzyme-responsive peptide self-assembly technique to develop an enzyme-responsive small molecule peptide that adapts to the expression levels of matrix metalloproteinases in myocardial infarction lesions. This peptide is engineered to respond to the high concentration of matrix metalloproteinases in the lesion area, allowing for precise and abundant presentation of the apelin motif. The changes in hydrophobicity allow the apelin motif to self-assemble into a supramolecular multivalent peptide ligand-SAMP. This self-assembly behavior not only prolongs the residence time of apelin in the myocardial infarction lesion but also enhances the receptor-ligand interaction through increased receptor binding affinity due to multivalency. Studies have demonstrated that SAMP significantly promotes angiogenesis after ischemia, reduces cardiomyocyte apoptosis, and improves cardiac function. This novel therapeutic strategy offers a new approach to restoring coronary microvascular function and improving damaged myocardium after myocardial infarction.
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Affiliation(s)
- Jiejing Li
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xudong Song
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xu Liao
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yihan Shi
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Huiming Chen
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qiuqun Xiao
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Fengjiao Liu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jie Zhan
- Department of Laboratory Medicine, Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Yanbin Cai
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China; Department of Cardiovascular Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
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2
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You YY, Zhang N, Wang Z, Yin ZH, Bao QY, Lei SX, Xie XJ. DLK1 promoted ischemic angiogenesis through notch1 signaling in endothelial progenitor cells. Acta Pharmacol Sin 2024:10.1038/s41401-024-01346-0. [PMID: 39060522 DOI: 10.1038/s41401-024-01346-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Delta like non-canonical Notch ligand 1 (DLK1), as a member of epidermal growth factor-like family, plays a critical role in somatic growth, tissue development and possibly tissue renewal. Though previous studies had indicated that DLK1 contributed to adipogenesis and myogenesis, it's still controversial whether DLK1 affects angiogenesis and how it interacts with Notch signaling with numerous conflicting reports from different models. Based on our preliminary finding that DLK1 expression was up-regulated in mice ischemic gastrocnemius and in the border zone of infarcted myocardium, we administered either recombinant DLK1 (rDLK1) or PBS in C57BL/6 mice after establishment of hindlimb ischemia (HLI) and myocardial infarction (MI), respectively. Exogenous rDLK1 administration significantly improved both blood perfusion of mice ischemic hindlimbs and muscle motor function on the 3rd, 7th day after HLI, by promoting neovascularization. Similar effect on neovascularization was verified in mice on the 28th day after MI as well as improvement of cardiac failure. Correspondingly, the number of CD34+KDR+ cells, indicated as endothelial progenitor cells (EPCs), was significantly in mice ischemic gastrocnemius by rDLK1 administration, which was abrogated by DAPT as the specific inhibitor of Notch intracellular domain (NICD). Furthermore, bone marrow mononuclear cells were obtained from C57BL/6 mice and differentiated to EPCs ex vivo. Incubation with rDLK1 triggered Notch1 mRNA and NICD protein expressions in EPCs as exposed to hypoxia and serum deprivation, promoting EPCs proliferation, migration, anti-apoptosis and tube formation. Otherwise, rDLK1 incubation significantly decreased intracellular and mitochondrial reactive oxygen species, increased ATP content and mitochondrial membrane potential, downregulated short isoform of OPA-1 expression whereas upregulated mitofusin (-1, -2) expression in EPCs by Notch1 signaling, which were all abrogated by DAPT. In summary, the present study unveils the pro-angiogenesis and its mechanism of rDLK1 through activation of Notch1 signaling in endothelial progenitor cells.
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Affiliation(s)
- Ya-Yu You
- Department of Cardiology, State Key Laboratory of Transvascular Implantation Devices, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Ning Zhang
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, 310009, China
| | - Zhuo Wang
- Department of Cardiology, State Key Laboratory of Transvascular Implantation Devices, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
- International Institutes of Medicine, Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
| | - Zhe-Hui Yin
- Department of Cardiology, State Key Laboratory of Transvascular Implantation Devices, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Qin-Yi Bao
- Department of Cardiology, State Key Laboratory of Transvascular Implantation Devices, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Shu-Xin Lei
- Department of Cardiology, State Key Laboratory of Transvascular Implantation Devices, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Xiao-Jie Xie
- Department of Cardiology, State Key Laboratory of Transvascular Implantation Devices, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
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3
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Sturny R, Boulgakoff L, Kelly RG, Miquerol L. Transient formation of collaterals contributes to the restoration of the arterial tree during cardiac regeneration in neonatal mice. J Mol Cell Cardiol 2024; 195:1-13. [PMID: 39038734 DOI: 10.1016/j.yjmcc.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/25/2024] [Accepted: 07/16/2024] [Indexed: 07/24/2024]
Abstract
Revascularization of ischemic myocardium following cardiac damage is an important step in cardiac regeneration. However, the mechanism of arteriogenesis has not been well described during cardiac regeneration. Here we investigated coronary artery remodeling and collateral growth during cardiac regeneration. Neonatal MI was induced by ligature of the left descending artery (LAD) in postnatal day (P) 1 or P7 pups from the Cx40-GFP mouse line and the arterial tree was reconstructed in 3D from images of cleared hearts collected at 1, 2, 4, 7 and 14 days after infarction. We show a rapid remodeling of the left coronary arterial tree induced by neonatal MI and the formation of numerous collateral arteries, which are transient in regenerating hearts after MI at P1 and persistent in non-regenerating hearts after MI at P7. This difference is accompanied by restoration of a perfused or a non-perfused LAD following MI at P1 or P7 respectively. Interestingly, collaterals ameliorate cardiac perfusion and drive LAD repair, and lineage tracing analysis demonstrates that the restoration of the LAD occurs by remodeling of pre-existing arterial cells independently of whether they originate in large arteries or arterioles. These results demonstrate that the restoration of the LAD artery during cardiac regeneration occurs by pruning as the rapidly forming collaterals that support perfusion of the disconnected lower LAD subsequently disappear on restoration of a unique LAD. These results highlight a rapid phase of arterial remodeling that plays an important role in vascular repair during cardiac regeneration.
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Affiliation(s)
- Rachel Sturny
- Aix-Marseille Université, CNRS IBDM UMR7288, Marseille, France
| | | | - Robert G Kelly
- Aix-Marseille Université, CNRS IBDM UMR7288, Marseille, France
| | - Lucile Miquerol
- Aix-Marseille Université, CNRS IBDM UMR7288, Marseille, France
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4
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McCracken IR, Smart N. Control of coronary vascular cell fate in development and regeneration. Semin Cell Dev Biol 2024; 155:50-61. [PMID: 37714806 DOI: 10.1016/j.semcdb.2023.08.005] [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: 07/04/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/17/2023]
Abstract
The coronary vasculature consists of a complex hierarchal network of arteries, veins, and capillaries which collectively function to perfuse the myocardium. However, the pathways controlling the temporally and spatially restricted mechanisms underlying the formation of this vascular network remain poorly understood. In recent years, the increasing use and refinement of transgenic mouse models has played an instrumental role in offering new insights into the cellular origins of the coronary vasculature, as well as identifying a continuum of transitioning cell states preceding the full maturation of the coronary vasculature. Coupled with the emergence of single cell RNA sequencing platforms, these technologies have begun to uncover the key regulatory factors mediating the convergence of distinct cellular origins to ensure the formation of a collectively functional, yet phenotypically diverse, vascular network. Furthermore, improved understanding of the key regulatory factors governing coronary vessel formation in the embryo may provide crucial clues into future therapeutic strategies to reactivate these developmentally functional mechanisms to drive the revascularisation of the ischaemic adult heart.
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Affiliation(s)
- Ian R McCracken
- Institute of Developmental and Regenerative Medicine, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX3 7TY, United Kingdom
| | - Nicola Smart
- Institute of Developmental and Regenerative Medicine, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX3 7TY, United Kingdom.
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5
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Weinberger M, Riley PR. Animal models to study cardiac regeneration. Nat Rev Cardiol 2024; 21:89-105. [PMID: 37580429 DOI: 10.1038/s41569-023-00914-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/17/2023] [Indexed: 08/16/2023]
Abstract
Permanent fibrosis and chronic deterioration of heart function in patients after myocardial infarction present a major health-care burden worldwide. In contrast to the restricted potential for cellular and functional regeneration of the adult mammalian heart, a robust capacity for cardiac regeneration is seen during the neonatal period in mammals as well as in the adults of many fish and amphibian species. However, we lack a complete understanding as to why cardiac regeneration takes place more efficiently in some species than in others. The capacity of the heart to regenerate after injury is controlled by a complex network of cellular and molecular mechanisms that form a regulatory landscape, either permitting or restricting regeneration. In this Review, we provide an overview of the diverse array of vertebrates that have been studied for their cardiac regenerative potential and discuss differential heart regeneration outcomes in closely related species. Additionally, we summarize current knowledge about the core mechanisms that regulate cardiac regeneration across vertebrate species.
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Affiliation(s)
- Michael Weinberger
- Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford, UK
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Paul R Riley
- Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford, UK.
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6
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Mizukami K, Higashiyama H, Arima Y, Ando K, Okada N, Kose K, Yamada S, Takeuchi JK, Koshiba-Takeuchi K, Fukuhara S, Miyagawa-Tomita S, Kurihara H. Coronary artery established through amniote evolution. eLife 2023; 12:e83005. [PMID: 37605519 PMCID: PMC10444023 DOI: 10.7554/elife.83005] [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: 08/26/2022] [Accepted: 07/17/2023] [Indexed: 08/23/2023] Open
Abstract
Coronary arteries are a critical part of the vascular system and provide nourishment to the heart. In humans, even minor defects in coronary arteries can be lethal, emphasizing their importance for survival. However, some teleosts survive without coronary arteries, suggesting that there may have been some evolutionary changes in the morphology and function of coronary arteries in the tetrapod lineage. Here, we propose that the true ventricular coronary arteries were newly established during amniote evolution through remodeling of the ancestral coronary vasculature. In mouse (Mus musculus) and Japanese quail (Coturnix japonica) embryos, the coronary arteries unique to amniotes are established by the reconstitution of transient vascular plexuses: aortic subepicardial vessels (ASVs) in the outflow tract and the primitive coronary plexus on the ventricle. In contrast, amphibians (Hyla japonica, Lithobates catesbeianus, Xenopus laevis, and Cynops pyrrhogaster) retain the ASV-like vasculature as truncal coronary arteries throughout their lives and have no primitive coronary plexus. The anatomy and development of zebrafish (Danio rerio) and chondrichthyans suggest that their hypobranchial arteries are ASV-like structures serving as the root of the coronary vasculature throughout their lives. Thus, the ventricular coronary artery of adult amniotes is a novel structure that has acquired a new remodeling process, while the ASVs, which occur transiently during embryonic development, are remnants of the ancestral coronary vessels. This evolutionary change may be related to the modification of branchial arteries, indicating considerable morphological changes underlying the physiological transition during amniote evolution.
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Affiliation(s)
- Kaoru Mizukami
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of TokyoTokyoJapan
| | - Hiroki Higashiyama
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of TokyoTokyoJapan
| | - Yuichiro Arima
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of TokyoTokyoJapan
- Developmental Cardiology Laboratory, International Research Center for Medical Science, Kumamoto UniversityKumamotoJapan
| | - Koji Ando
- Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical SchoolTokyoJapan
| | | | - Katsumi Kose
- Institute of Applied Physics, University of TsukubaTsukubaJapan
| | - Shigehito Yamada
- Congenital Anomaly Research Center, Kyoto University Graduate School of MedicineKyotoJapan
| | - Jun K Takeuchi
- Molecular Craniofacial Embryology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental UniversityTokyoJapan
| | | | - Shigetomo Fukuhara
- Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical SchoolTokyoJapan
| | - Sachiko Miyagawa-Tomita
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of TokyoTokyoJapan
- Heart Center, Department of Pediatric Cardiology, Tokyo Women’s Medical UniversityTokyoJapan
- Department of Animal Nursing Science, Yamazaki University of Animal Health TechnologyTokyoJapan
| | - Hiroki Kurihara
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of TokyoTokyoJapan
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7
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Berkeley B, Tang MNH, Brittan M. Mechanisms regulating vascular and lymphatic regeneration in the heart after myocardial infarction. J Pathol 2023; 260:666-678. [PMID: 37272582 PMCID: PMC10953458 DOI: 10.1002/path.6093] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/14/2023] [Accepted: 04/27/2023] [Indexed: 06/06/2023]
Abstract
Myocardial infarction, caused by a thrombus or coronary vascular occlusion, leads to irreversible ischaemic injury. Advances in early reperfusion strategies have significantly reduced short-term mortality after myocardial infarction. However, survivors have an increased risk of developing heart failure, which confers a high risk of death at 1 year. The capacity of the injured neonatal mammalian heart to regenerate has stimulated extensive research into whether recapitulation of developmental regeneration programmes may be beneficial in adult cardiovascular disease. Restoration of functional blood and lymphatic vascular networks in the infarct and border regions via neovascularisation and lymphangiogenesis, respectively, is a key requirement to facilitate myocardial regeneration. An improved understanding of the endogenous mechanisms regulating coronary vascular and lymphatic expansion and function in development and in adult patients after myocardial infarction may inform future therapeutic strategies and improve translation from pre-clinical studies. In this review, we explore the underpinning research and key findings in the field of cardiovascular regeneration, with a focus on neovascularisation and lymphangiogenesis, and discuss the outcomes of therapeutic strategies employed to date. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Bronwyn Berkeley
- Centre for Cardiovascular Science, The Queen's Medical Research InstituteUniversity of EdinburghEdinburghUK
| | - Michelle Nga Huen Tang
- Centre for Cardiovascular Science, The Queen's Medical Research InstituteUniversity of EdinburghEdinburghUK
| | - Mairi Brittan
- Centre for Cardiovascular Science, The Queen's Medical Research InstituteUniversity of EdinburghEdinburghUK
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8
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Chu Q, Song X, Xiao Y, Kang YJ. Alteration of endothelial permeability ensures cardiomyocyte survival from ischemic insult in the subendocardium of the heart. Exp Biol Med (Maywood) 2023; 248:1364-1372. [PMID: 37786370 PMCID: PMC10657589 DOI: 10.1177/15353702231194344] [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: 11/08/2022] [Accepted: 05/12/2023] [Indexed: 10/04/2023] Open
Abstract
Previous studies have shown that cardiomyocytes in the subendocardial region of myocardium survive from ischemic insult. This study was undertaken to explore possible mechanisms for the survival of these cardiomyocytes, focusing on changes in endothelial cells (ECs) and blood supply. C57/B6 mice were subjected to permanent ligation of left anterior descending (LAD) coronary artery to induce myocardial ischemia (MI). The hearts were harvested at 1, 4, and 7 days post MI and examined for histological changes. It was found that the survival of cardiomyocytes was associated with a preservation of ECs in the subendocardial region, as revealed by EC-specific tdTomato expression transgenic mice (Tie2tdTomato). However, the EC selective proteins, PECAM1 and VEGFR2, were significantly depressed in these ECs. Consequently, the ratio of PECAM1/tdTomato was significantly decreased, indicating a transformation from PECAM1+ ECs to PECAM1- ECs. Furthermore, EC junction protein, VE-cadherin, was not only depressed but also disassociated from PECAM1 in the same region. These changes led to an increase in EC permeability, as evidenced by increased blood infiltration in the subendocardial region. Thus, the increase in the permeability of ECs due to their transformation in the subendocardial region allows blood infiltration, creating a unique microenvironment and ensuring the survival of cardiomyocytes under ischemic conditions.
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Affiliation(s)
- Qing Chu
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Xin Song
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Ying Xiao
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Y James Kang
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
- Tennessee Institute of Regenerative Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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9
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Duan M, Li K, Zhang L, Zhou Y, Bian L, Wang C. Screening, characterization and specific binding mechanism of aptamers against human plasminogen Kringle 5. Bioorg Chem 2023; 137:106579. [PMID: 37149949 DOI: 10.1016/j.bioorg.2023.106579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/30/2023] [Accepted: 04/26/2023] [Indexed: 05/09/2023]
Abstract
Plasminogen Kringle 5 is one of the most potent cytokines identified to inhibit the proliferation and migration of vascular endothelial cells. Herein, six aptamer candidates that specifically bind to Kringle 5 were generated by the systematic evolution of ligands by exponential enrichment (SELEX). After 10 rounds of screening against Kringle 5, a highly enriched ssDNA pool was sequenced and the representative aptamers were subjected to binding assays to evaluate their affinity and specificity. The preferred aptamer KG-4, which demonstrated a low dissociation constant (Kd) of ∼ 432 nM and excellent selectivity for Kringle 5. A conserved "motif" of eight bases located at the stem-loop intersection, common to the aptamer, was further confirmed as the recognition element for binding with Kringle 5. The bulge formed by the motif and depression on the lysine binding site of Kringle 5 were both located at the binding interface, and the "induced fit" between their structures played a central role in the recognition process. Kringle 5 interacts KG-4 primarily through enthalpy-driven van der Waals forces and hydrogen bond. The key nucleotides A34 and C35 at motif on KG-4 and the positively charged amino acids in the loop 1 and loop 4 regions on Kringle 5 play a major role in the interaction. Furthermore, KG-4 dose-dependently reduced the proliferation inhibition of vascular endothelial cells by Kringle 5 and had a blocking effect on the function of Kringle 5 in inhibiting migration and promoting apoptosis of vascular endothelial cells in vitro. This study put a new light on protein-aptamer binding mechanism and may provide insight into the treatment of ischemic diseases by target depletion of Kringle 5.
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Affiliation(s)
- Meijiao Duan
- College of Life Science, Northwest University, Xi'an 710069, Shaanxi, China
| | - Kewei Li
- College of Life Science, Northwest University, Xi'an 710069, Shaanxi, China
| | - Ling Zhang
- College of Life Science, Northwest University, Xi'an 710069, Shaanxi, China
| | - Yaqi Zhou
- College of Life Science, Northwest University, Xi'an 710069, Shaanxi, China
| | - Liujiao Bian
- College of Life Science, Northwest University, Xi'an 710069, Shaanxi, China.
| | - Cuiling Wang
- College of Life Science, Northwest University, Xi'an 710069, Shaanxi, China.
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10
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Parab S, Setten E, Astanina E, Bussolino F, Doronzo G. The tissue-specific transcriptional landscape underlines the involvement of endothelial cells in health and disease. Pharmacol Ther 2023; 246:108418. [PMID: 37088448 DOI: 10.1016/j.pharmthera.2023.108418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 03/23/2023] [Accepted: 04/17/2023] [Indexed: 04/25/2023]
Abstract
Endothelial cells (ECs) that line vascular and lymphatic vessels are being increasingly recognized as important to organ function in health and disease. ECs participate not only in the trafficking of gases, metabolites, and cells between the bloodstream and tissues but also in the angiocrine-based induction of heterogeneous parenchymal cells, which are unique to their specific tissue functions. The molecular mechanisms regulating EC heterogeneity between and within different tissues are modeled during embryogenesis and become fully established in adults. Any changes in adult tissue homeostasis induced by aging, stress conditions, and various noxae may reshape EC heterogeneity and induce specific transcriptional features that condition a functional phenotype. Heterogeneity is sustained via specific genetic programs organized through the combinatory effects of a discrete number of transcription factors (TFs) that, at the single tissue-level, constitute dynamic networks that are post-transcriptionally and epigenetically regulated. This review is focused on outlining the TF-based networks involved in EC specialization and physiological and pathological stressors thought to modify their architecture.
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Affiliation(s)
- Sushant Parab
- Department of Oncology, University of Torino, IT, Italy; Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Torino, IT, Italy
| | - Elisa Setten
- Department of Oncology, University of Torino, IT, Italy; Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Torino, IT, Italy
| | - Elena Astanina
- Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Torino, IT, Italy
| | - Federico Bussolino
- Department of Oncology, University of Torino, IT, Italy; Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Torino, IT, Italy.
| | - Gabriella Doronzo
- Department of Oncology, University of Torino, IT, Italy; Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Torino, IT, Italy
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11
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Li Z, Solomonidis EG, Berkeley B, Tang MNH, Stewart KR, Perez-Vicencio D, McCracken IR, Spiroski AM, Gray GA, Barton AK, Sellers SL, Riley PR, Baker AH, Brittan M. Multi-species meta-analysis identifies transcriptional signatures associated with cardiac endothelial responses in the ischaemic heart. Cardiovasc Res 2023; 119:136-154. [PMID: 36082978 PMCID: PMC10022865 DOI: 10.1093/cvr/cvac151] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/04/2022] [Accepted: 08/10/2022] [Indexed: 11/12/2022] Open
Abstract
AIM Myocardial infarction remains the leading cause of heart failure. The adult human heart lacks the capacity to undergo endogenous regeneration. New blood vessel growth is integral to regenerative medicine necessitating a comprehensive understanding of the pathways that regulate vascular regeneration. We sought to define the transcriptomic dynamics of coronary endothelial cells following ischaemic injuries in the developing and adult mouse and human heart and to identify new mechanistic insights and targets for cardiovascular regeneration. METHODS AND RESULTS We carried out a comprehensive meta-analysis of integrated single-cell RNA-sequencing data of coronary vascular endothelial cells from the developing and adult mouse and human heart spanning healthy and acute and chronic ischaemic cardiac disease. We identified species-conserved gene regulatory pathways aligned to endogenous neovascularization. We annotated injury-associated temporal shifts of the endothelial transcriptome and validated four genes: VEGF-C, KLF4, EGR1, and ZFP36. Moreover, we showed that ZFP36 regulates human coronary endothelial cell proliferation and defined that VEGF-C administration in vivo enhances clonal expansion of the cardiac vasculature post-myocardial infarction. Finally, we constructed a coronary endothelial cell meta-atlas, CrescENDO, to empower future in-depth research to target pathways associated with coronary neovascularization. CONCLUSION We present a high-resolution single-cell meta-atlas of healthy and injured coronary endothelial cells in the mouse and human heart, revealing a suite of novel targets with great potential to promote vascular regeneration, and providing a rich resource for therapeutic development.
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Affiliation(s)
- Ziwen Li
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Emmanouil G Solomonidis
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Bronwyn Berkeley
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Michelle Nga Huen Tang
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Katherine Ross Stewart
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Daniel Perez-Vicencio
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Ian R McCracken
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Ana-Mishel Spiroski
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Gillian A Gray
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Anna K Barton
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Stephanie L Sellers
- Division of Cardiology, Centre for Heart Lung Innovation, Providence Research, University of British Columbia, Vancouver, Canada
| | - Paul R Riley
- Department of Physiology, Anatomy and Genetics, University of Oxford, South Parks Road, Oxford OX1 3PT, UK
| | - Andrew H Baker
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
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12
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Dinh P, Peng J, Tran T, Wu D, Tran C, Dinh T, Pan S. Identification of hsa_circ_0001445 of a novel circRNA-miRNA-mRNA regulatory network as potential biomarker for coronary heart disease. Front Cardiovasc Med 2023; 10:1104223. [PMID: 36998978 PMCID: PMC10043405 DOI: 10.3389/fcvm.2023.1104223] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/22/2023] [Indexed: 03/17/2023] Open
Abstract
ObjectsTo evaluate the hsa_circ_0001445 level in peripheral blood leukocytes of patients with coronary heart disease (CHD) and its related clinical factors, and predict its circRNA-miRNA-mRNA regulatory network in CHD pathogenesis via bioinformatics analysis.MethodsPeripheral blood leukocytes were isolated from the whole blood samples of 94 CHD patients (aged 65.96 ± 9.78 years old) and 126 healthy controls (aged 60.75 ± 8.81 years old). qRT-PCR was used to quantify the expression level of circRNA and subsequently analyze its association with CHD clinical parameters. Via bioinformatics algorithm and GEO datasets, differential miRNA expression was evaluated using the Limma package. A miRNA-mRNA regulatory network was predicted by cyTargetLinker. ClusterProfiler was employed to perform functional enrichment analysis of the circRNA network to investigate its role in CHD pathogenesis.ResultsThe expression of hsa_circ_0001445 in peripheral blood leukocytes of CHD patients was downregulated compared with that of healthy controls. Positive correlations were evident between hsa_circ_0001445 expression level and the levels of hemoglobin, triglycerides, high- and low-density lipoprotein cholesterol. A significant negative correlation was also found between hsa_circ_0001445 expression level and age and the neutrophil level. Low expression of hsa_circ_0001445 exhibited a discriminatory ability between CHD patients and healthy controls with a sensitivity of 67.5% and a specificity of 76.6% (p < 0.05). By bioinformatics analysis, 405 gene ontology terms were identified. The Kyoto Encyclopedia of Genes and Genomes terms focused principally on the PI3K-Akt signaling pathway. hsa_circ_0001445 was associated with the expression of three miRNAs that may regulate 18 genes involved in KEGG processes: hsa-miR-507, hsa-miR-375–3p, and hsa-miR-942–5p.ConclusionThe hsa_circ_0001445 level in peripheral blood leukocytes may serve as a biomarker for CHD diagnosis. Our work on circRNA-miRNA-mRNA networks suggests a potential role for hsa_circ_0001445 in CHD development.
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Affiliation(s)
- PhongSon Dinh
- Departments of Pathophysiology, Guangxi Medical University, Nanning, China
- College of Medicine and Pharmacy, Duy Tan University, Danang, Vietnam
| | - JunHua Peng
- Departments of Pathophysiology, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Ageing-Related Disease of Chinese Ministry of Education, Center for Translational Medicine and School of Preclinical Medicine, Guangxi Medical University, Nanning, China
| | - ThanhLoan Tran
- Departments of Pathophysiology, Guangxi Medical University, Nanning, China
- Department of Immunology and Pathophysiology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - DongFeng Wu
- Department of the Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - ChauMyThanh Tran
- College of Medicine and Pharmacy, Duy Tan University, Danang, Vietnam
| | - ThiPhuongHoai Dinh
- Department of Neurosurgery, Hue University Hospital, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - ShangLing Pan
- Departments of Pathophysiology, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Ageing-Related Disease of Chinese Ministry of Education, Center for Translational Medicine and School of Preclinical Medicine, Guangxi Medical University, Nanning, China
- Correspondence: ShangLing Pan
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13
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Sun Y, Ma M, Cao D, Zheng A, Zhang Y, Su Y, Wang J, Xu Y, Zhou M, Tang Y, Liu Y, Ma T, Fan A, Zhang X, Zhu Q, Qin J, Mo C, Xu Y, Zhang L, Xu D, Yue R. Inhibition of Fap Promotes Cardiac Repair by Stabilizing BNP. Circ Res 2023; 132:586-600. [PMID: 36756875 DOI: 10.1161/circresaha.122.320781] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
BACKGROUND Myocardial infarction (MI) elicits cardiac fibroblast activation and extracellular matrix (ECM) deposition to maintain the structural integrity of the heart. Recent studies demonstrate that Fap (fibroblast activation protein)-a prolyl-specific serine protease-is an important marker of activated cardiac fibroblasts after MI. METHODS Left ventricle and plasma samples from patients and healthy donors were used to analyze the expression level of FAP and its prognostic value. Echocardiography and histological analysis of heart sections were used to analyze cardiac functions, scar formation, ECM deposition and angiogenesis after MI. RNA-Sequencing, biochemical analysis, cardiac fibroblasts (CFs) and endothelial cells co-culture were used to reveal the molecular and cellular mechanisms by which Fap regulates angiogenesis. RESULTS We found that Fap is upregulated in patient cardiac fibroblasts after cardiac injuries, while plasma Fap is downregulated and functions as a prognostic marker for cardiac repair. Genetic or pharmacological inhibition of Fap in mice significantly improved cardiac function after MI. Histological and transcriptomic analyses showed that Fap inhibition leads to increased angiogenesis in the peri-infarct zone, which promotes ECM deposition and alignment by cardiac fibroblasts and prevents their overactivation, thereby limiting scar expansion. Mechanistically, we found that BNP (brain natriuretic peptide) is a novel substrate of Fap that mediates postischemic angiogenesis. Fap degrades BNP to inhibit vascular endothelial cell migration and tube formation. Pharmacological inhibition of Fap in Nppb (encoding pre-proBNP) or Npr1 (encoding the BNP receptor)-deficient mice showed no cardioprotective effects, suggesting that BNP is a physiological substrate of Fap. CONCLUSIONS This study identifies Fap as a negative regulator of cardiac repair and a potential drug target to treat MI. Inhibition of Fap stabilizes BNP to promote angiogenesis and cardiac repair.
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Affiliation(s)
- Yuxi Sun
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.).,Department of Cardiology and Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital (Y. Sun, A.Z., M.Z., L.Z.), Shanghai Jiao Tong University School of Medicine, China
| | - Mengqiu Ma
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Dandan Cao
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Ancheng Zheng
- Department of Cardiology and Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital (Y. Sun, A.Z., M.Z., L.Z.), Shanghai Jiao Tong University School of Medicine, China
| | - Yiying Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Yang Su
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Jianfang Wang
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Yanhua Xu
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.).,Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Mi Zhou
- Department of Cardiology and Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital (Y. Sun, A.Z., M.Z., L.Z.), Shanghai Jiao Tong University School of Medicine, China
| | - Yansong Tang
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Yifan Liu
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Teng Ma
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Aoyuan Fan
- Department of Cardiac Surgery, Ruijin Hospital (A.F.), Shanghai Jiao Tong University School of Medicine, China
| | - Xiaoying Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Qiaoling Zhu
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Jiachen Qin
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Chunyang Mo
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.)
| | - Yawei Xu
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Li Zhang
- Department of Cardiology and Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital (Y. Sun, A.Z., M.Z., L.Z.), Shanghai Jiao Tong University School of Medicine, China
| | - Dachun Xu
- Department of Cardiology, Pan-Vascular Research Institute of Tongji University, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y. Sun, M.M., Y. Su, Yanhua Xu, Y.T., Y.L., T.M., Yawei Xu, D.X.)
| | - Rui Yue
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, China (D.C., Y.Z., J.W., Yanhua Xu, X.Z., Q.Z., J.Q., C.M., R.Y.).,Shanghai Institute of Stem Cell Research and Clinical Translation, China (R.Y.)
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14
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Wu WZ, Bai YP. Endothelial GLUTs and vascular biology. Biomed Pharmacother 2023; 158:114151. [PMID: 36565587 DOI: 10.1016/j.biopha.2022.114151] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/15/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Endothelial metabolism is a promising target for vascular functional regulation and disease therapy. Glucose is the primary fuel for endothelial metabolism, supporting ATP generation and endothelial cell survival. Multiple studies have discussed the role of endothelial glucose catabolism, such as glycolysis and oxidative phosphorylation, in vascular functional remodeling. However, the role of the first gatekeepers of endothelial glucose utilization, glucose transporters, in the vasculature has long been neglected. Here, this review summarizes glucose transporter studies in vascular research. We mainly focus on GLUT1 and GLUT3 because they are the most critical glucose transporters responsible for most endothelial glucose uptake. Some interesting topics are also discussed, intending to provide directions for endothelial glucose transporter research in the future.
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Affiliation(s)
- Wan-Zhou Wu
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; Center for Vascular Disease and Translational Medicine, Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yong-Ping Bai
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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15
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Chen S, Li L, Wu Z, Liu Y, Li F, Huang K, Wang Y, Chen Q, Wang X, Shen W, Zhang R, Shen Y, Lu L, Ding F, Dai Y. SerpinG1: A Novel Biomarker Associated With Poor Coronary Collateral in Patients With Stable Coronary Disease and Chronic Total Occlusion. J Am Heart Assoc 2022; 11:e027614. [PMID: 36515245 PMCID: PMC9798810 DOI: 10.1161/jaha.122.027614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background This study aimed to explore predictive biomarkers of coronary collateralization in patients with chronic total occlusion. Methods and Results By using a microarray expression profiling program downloaded from the Gene Expression Omnibus database, weighted gene coexpression network analysis was constructed to analyze the relationship between potential modules and coronary collateralization and screen out the hub genes. Then, the hub gene was identified and validated in an independent cohort of patients (including 299 patients with good arteriogenic responders and 223 patients with poor arteriogenic responders). Weighted gene coexpression network analysis showed that SERPING1 in the light-cyan module was the only gene that was highly correlated with both the gene module and the clinical traits. Serum levels of serpinG1 were significantly higher in patients with bad arteriogenic responders than in patients with good arteriogenic responders (472.53±197.16 versus 314.80±208.92 μg/mL; P<0.001) and were negatively associated with the Rentrop score (Spearman r=-0.50; P<0.001). Receiver operating characteristic curve analysis indicated that the area under the curve was 0.77 (95% CI, 0.72-0.81; P<0.001) for serum serpinG1 in prediction of bad arteriogenic responders. After adjusting for traditional cardiovascular risk factors, serum serpinG1 levels (per SD) remained an independent risk factor for bad arteriogenic responders (odds ratio, 2.20 [95% CI, 1.76-2.74]; P<0.001). Conclusions Our findings illustrate that SERPING1 screened by weighted gene coexpression network analysis was associated with poor collateralization in patients with chronic total occlusion.
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Affiliation(s)
- Shuai Chen
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Le‐Ying Li
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Zhi‐Ming Wu
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Yong Liu
- Department of Nursing, Chongqing Medical and Pharmaceutical CollegeChongqingChina
| | - Fei‐Fei Li
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Ke Huang
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Yi‐Xuan Wang
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Qiu‐Jing Chen
- Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Xiao‐Qun Wang
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Wei‐Feng Shen
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Rui‐Yan Zhang
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Shanghai Clinical Research Center for Interventional MedicineShanghaiChina
| | - Ying Shen
- Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Lin Lu
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
| | - Feng‐Hua Ding
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Shanghai Clinical Research Center for Interventional MedicineShanghaiChina
| | - Yang Dai
- Department of Vascular and Cardiology, Rui Jin HospitalShanghai Jiaotong University School of MedicineShanghaiChina,Institute of Cardiovascular DiseasesShanghai Jiaotong University School of MedicineShanghaiChina
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16
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Wilson AD, Richards MA, Curtis MK, Gunadasa-Rohling M, Monterisi S, Loonat AA, Miller JJ, Ball V, Lewis A, Tyler DJ, Moshnikova A, Andreev OA, Reshetnyak YK, Carr C, Swietach P. Acidic environments trigger intracellular H+-sensing FAK proteins to re-balance sarcolemmal acid-base transporters and auto-regulate cardiomyocyte pH. Cardiovasc Res 2022; 118:2946-2959. [PMID: 34897412 PMCID: PMC9648823 DOI: 10.1093/cvr/cvab364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/08/2021] [Indexed: 11/12/2022] Open
Abstract
AIMS In cardiomyocytes, acute disturbances to intracellular pH (pHi) are promptly corrected by a system of finely tuned sarcolemmal acid-base transporters. However, these fluxes become thermodynamically re-balanced in acidic environments, which inadvertently causes their set-point pHi to fall outside the physiological range. It is unclear whether an adaptive mechanism exists to correct this thermodynamic challenge, and return pHi to normal. METHODS AND RESULTS Following left ventricle cryo-damage, a diffuse pattern of low extracellular pH (pHe) was detected by acid-sensing pHLIP. Despite this, pHi measured in the beating heart (13C NMR) was normal. Myocytes had adapted to their acidic environment by reducing Cl-/HCO3- exchange (CBE)-dependent acid-loading and increasing Na+/H+ exchange (NHE1)-dependent acid-extrusion, as measured by fluorescence (cSNARF1). The outcome of this adaptation on pHi is revealed as a cytoplasmic alkalinization when cells are superfused at physiological pHe. Conversely, mice given oral bicarbonate (to improve systemic buffering) had reduced myocardial NHE1 expression, consistent with a needs-dependent expression of pHi-regulatory transporters. The response to sustained acidity could be replicated in vitro using neonatal ventricular myocytes incubated at low pHe for 48 h. The adaptive increase in NHE1 and decrease in CBE activities was linked to Slc9a1 (NHE1) up-regulation and Slc4a2 (AE2) down-regulation. This response was triggered by intracellular H+ ions because it persisted in the absence of CO2/HCO3- and became ablated when acidic incubation media had lower chloride, a solution manoeuvre that reduces the extent of pHi-decrease. Pharmacological inhibition of FAK-family non-receptor kinases, previously characterized as pH-sensors, ablated this pHi autoregulation. In support of a pHi-sensing role, FAK protein Pyk2 (auto)phosphorylation was reduced within minutes of exposure to acidity, ahead of adaptive changes to pHi control. CONCLUSIONS Cardiomyocytes fine-tune the expression of pHi-regulators so that pHi is at least 7.0. This autoregulatory feedback mechanism defines physiological pHi and protects it during pHe vulnerabilities.
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Affiliation(s)
- Abigail D Wilson
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Mark A Richards
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - M Kate Curtis
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Mala Gunadasa-Rohling
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Stefania Monterisi
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Aminah A Loonat
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Jack J Miller
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
- Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Radcliffe Department of Medicine, Level 0, John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
| | - Vicky Ball
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Andrew Lewis
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Radcliffe Department of Medicine, Level 0, John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
| | - Damian J Tyler
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Radcliffe Department of Medicine, Level 0, John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
| | - Anna Moshnikova
- Physics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI 02881, USA
| | - Oleg A Andreev
- Physics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI 02881, USA
| | - Yana K Reshetnyak
- Physics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI 02881, USA
| | - Carolyn Carr
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
| | - Pawel Swietach
- Department of Physiology, Anatomy & Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford OX1 3PT, UK
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17
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Atresia of the right coronary arterial ostium with a left ventricular fistula: A case report. J Cardiol Cases 2022; 26:88-91. [DOI: 10.1016/j.jccase.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/09/2022] [Accepted: 03/04/2022] [Indexed: 11/22/2022] Open
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18
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Hulikova A, Park KC, Loonat AA, Gunadasa-Rohling M, Curtis MK, Chung YJ, Wilson A, Carr CA, Trafford AW, Fournier M, Moshnikova A, Andreev OA, Reshetnyak YK, Riley PR, Smart N, Milne TA, Crump NT, Swietach P. Alkaline nucleoplasm facilitates contractile gene expression in the mammalian heart. Basic Res Cardiol 2022; 117:17. [PMID: 35357563 PMCID: PMC8971196 DOI: 10.1007/s00395-022-00924-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 03/04/2022] [Accepted: 03/11/2022] [Indexed: 01/31/2023]
Abstract
Cardiac contractile strength is recognised as being highly pH-sensitive, but less is known about the influence of pH on cardiac gene expression, which may become relevant in response to changes in myocardial metabolism or vascularization during development or disease. We sought evidence for pH-responsive cardiac genes, and a physiological context for this form of transcriptional regulation. pHLIP, a peptide-based reporter of acidity, revealed a non-uniform pH landscape in early-postnatal myocardium, dissipating in later life. pH-responsive differentially expressed genes (pH-DEGs) were identified by transcriptomics of neonatal cardiomyocytes cultured over a range of pH. Enrichment analysis indicated "striated muscle contraction" as a pH-responsive biological process. Label-free proteomics verified fifty-four pH-responsive gene-products, including contractile elements and the adaptor protein CRIP2. Using transcriptional assays, acidity was found to reduce p300/CBP acetylase activity and, its a functional readout, inhibit myocardin, a co-activator of cardiac gene expression. In cultured myocytes, acid-inhibition of p300/CBP reduced H3K27 acetylation, as demonstrated by chromatin immunoprecipitation. H3K27ac levels were more strongly reduced at promoters of acid-downregulated DEGs, implicating an epigenetic mechanism of pH-sensitive gene expression. By tandem cytoplasmic/nuclear pH imaging, the cardiac nucleus was found to exercise a degree of control over its pH through Na+/H+ exchangers at the nuclear envelope. Thus, we describe how extracellular pH signals gain access to the nucleus and regulate the expression of a subset of cardiac genes, notably those coding for contractile proteins and CRIP2. Acting as a proxy of a well-perfused myocardium, alkaline conditions are permissive for expressing genes related to the contractile apparatus.
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Affiliation(s)
- Alzbeta Hulikova
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Kyung Chan Park
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Aminah A Loonat
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Mala Gunadasa-Rohling
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - M Kate Curtis
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Yu Jin Chung
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Abigail Wilson
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Carolyn A Carr
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Andrew W Trafford
- Unit of Cardiac Physiology, Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - Marjorie Fournier
- Department of Biochemistry, Advanced Proteomics Facility, University of Oxford, Oxford, UK
| | - Anna Moshnikova
- Physics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI, 02881, USA
| | - Oleg A Andreev
- Physics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI, 02881, USA
| | - Yana K Reshetnyak
- Physics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI, 02881, USA
| | - Paul R Riley
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Nicola Smart
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Thomas A Milne
- MRC Molecular Haematology Unit, Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, University of Oxford, Oxford, UK
| | - Nicholas T Crump
- MRC Molecular Haematology Unit, Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, University of Oxford, Oxford, UK
| | - Pawel Swietach
- Department of Physiology, Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK.
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19
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McCracken IR, Dobie R, Bennett M, Passi R, Beqqali A, Henderson NC, Mountford JC, Riley PR, Ponting CP, Smart N, Brittan M, Baker AH. Mapping the developing human cardiac endothelium at single-cell resolution identifies MECOM as a regulator of arteriovenous gene expression. Cardiovasc Res 2022; 118:2960-2972. [PMID: 35212715 PMCID: PMC9648824 DOI: 10.1093/cvr/cvac023] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 02/24/2022] [Indexed: 11/25/2022] Open
Abstract
AIMS Coronary vasculature formation is a critical event during cardiac development, essential for heart function throughout perinatal and adult life. However, current understanding of coronary vascular development has largely been derived from transgenic mouse models. The aim of this study was to characterize the transcriptome of the human foetal cardiac endothelium using single-cell RNA sequencing (scRNA-seq) to provide critical new insights into the cellular heterogeneity and transcriptional dynamics that underpin endothelial specification within the vasculature of the developing heart. METHODS AND RESULTS We acquired scRNA-seq data of over 10 000 foetal cardiac endothelial cells (ECs), revealing divergent EC subtypes including endocardial, capillary, venous, arterial, and lymphatic populations. Gene regulatory network analyses predicted roles for SMAD1 and MECOM in determining the identity of capillary and arterial populations, respectively. Trajectory inference analysis suggested an endocardial contribution to the coronary vasculature and subsequent arterialization of capillary endothelium accompanied by increasing MECOM expression. Comparative analysis of equivalent data from murine cardiac development demonstrated that transcriptional signatures defining endothelial subpopulations are largely conserved between human and mouse. Comprehensive characterization of the transcriptional response to MECOM knockdown in human embryonic stem cell-derived EC (hESC-EC) demonstrated an increase in the expression of non-arterial markers, including those enriched in venous EC. CONCLUSIONS scRNA-seq of the human foetal cardiac endothelium identified distinct EC populations. A predicted endocardial contribution to the developing coronary vasculature was identified, as well as subsequent arterial specification of capillary EC. Loss of MECOM in hESC-EC increased expression of non-arterial markers, suggesting a role in maintaining arterial EC identity.
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Affiliation(s)
- Ian R McCracken
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, UK,Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3PT, UK
| | - Ross Dobie
- Centre for Inflammation Research, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Matthew Bennett
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Rainha Passi
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Abdelaziz Beqqali
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Neil C Henderson
- Centre for Inflammation Research, University of Edinburgh, Edinburgh EH16 4TJ, UK,MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
| | | | - Paul R Riley
- Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3PT, UK
| | - Chris P Ponting
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Nicola Smart
- Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3PT, UK
| | - Mairi Brittan
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, UK
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20
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CDH18 is a fetal epicardial biomarker regulating differentiation towards vascular smooth muscle cells. NPJ Regen Med 2022; 7:14. [PMID: 35110584 PMCID: PMC8810917 DOI: 10.1038/s41536-022-00207-w] [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: 03/02/2021] [Accepted: 12/20/2021] [Indexed: 11/08/2022] Open
Abstract
The epicardium is a mesothelial layer covering the myocardium serving as a progenitor source during cardiac development. The epicardium reactivates upon cardiac injury supporting cardiac repair and regeneration. Fine-tuned balanced signaling regulates cell plasticity and cell-fate decisions of epicardial-derived cells (EPCDs) via epicardial-to-mesenchymal transition (EMT). However, powerful tools to investigate epicardial function, including markers with pivotal roles in developmental signaling, are still lacking. Here, we recapitulated epicardiogenesis using human induced pluripotent stem cells (hiPSCs) and identified type II classical cadherin CDH18 as a biomarker defining lineage specification in human active epicardium. The loss of CDH18 led to the onset of EMT and specific differentiation towards cardiac smooth muscle cells. Furthermore, GATA4 regulated epicardial CDH18 expression. These results highlight the importance of tracing CDH18 expression in hiPSC-derived epicardial cells, providing a model for investigating epicardial function in human development and disease and enabling new possibilities for regenerative medicine.
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21
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Jiang L, Liang J, Huang W, Ma J, Park KH, Wu Z, Chen P, Zhu H, Ma JJ, Cai W, Paul C, Niu L, Fan GC, Wang HS, Kanisicak O, Xu M, Wang Y. CRISPR activation of endogenous genes reprograms fibroblasts into cardiovascular progenitor cells for myocardial infarction therapy. Mol Ther 2022; 30:54-74. [PMID: 34678511 PMCID: PMC8753567 DOI: 10.1016/j.ymthe.2021.10.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/27/2021] [Accepted: 10/18/2021] [Indexed: 01/07/2023] Open
Abstract
Fibroblasts can be reprogrammed into cardiovascular progenitor cells (CPCs) using transgenic approaches, although the underlying mechanism remains unclear. We determined whether activation of endogenous genes such as Gata4, Nkx2.5, and Tbx5 can rapidly establish autoregulatory loops and initiate CPC generation in adult extracardiac fibroblasts using a CRISPR activation system. The induced fibroblasts (>80%) showed phenotypic changes as indicated by an Nkx2.5 cardiac enhancer reporter. The progenitor characteristics were confirmed by colony formation and expression of cardiovascular genes. Cardiac sphere induction segregated the early and late reprogrammed cells that can generate functional cardiomyocytes and vascular cells in vitro. Therefore, they were termed CRISPR-induced CPCs (ciCPCs). Transcriptomic analysis showed that cell cycle and heart development pathways were important to accelerate CPC formation during the early reprogramming stage. The CRISPR system opened the silenced chromatin locus, thereby allowing transcriptional factors to access their own promoters and eventually forming a positive feedback loop. The regenerative potential of ciCPCs was assessed after implantation in mouse myocardial infarction models. The engrafted ciCPCs differentiated into cardiovascular cells in vivo but also significantly improved contractile function and scar formation. In conclusion, multiplex gene activation was sufficient to drive CPC reprogramming, providing a new cell source for regenerative therapeutics.
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Affiliation(s)
- Lin Jiang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Jialiang Liang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA.
| | - Wei Huang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Jianyong Ma
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Ki Ho Park
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Zhichao Wu
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Peng Chen
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Hua Zhu
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jian-Jie Ma
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Wenfeng Cai
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Christian Paul
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Liang Niu
- Division of Biostatistics and Bioinformatics, Department of Environmental Health, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Guo-Chang Fan
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Hong-Sheng Wang
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Onur Kanisicak
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Meifeng Xu
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Yigang Wang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA.
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22
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Fiedler LR, Riley PR, Patient R. Three-Dimensional Visualization of Blood and Lymphatic Vessels in the Adult Zebrafish Heart by Chemical Clearing. Methods Mol Biol 2022; 2475:313-323. [PMID: 35451768 DOI: 10.1007/978-1-0716-2217-9_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Unlike humans, the zebrafish can repair and regenerate its heart following injury. Understanding the molecular and physiological mechanisms of heart regeneration is critical in developing pro-regenerative strategies for clinical application. The cardiac lymphatic and non-lymphatic vasculature both respond to injury in zebrafish and are instrumental in driving optimal repair and regeneration. However, progress has been impeded by an inability to obtain high resolution images to clearly visualize and thus to fully understand the vascular responses in the injured heart and how this might intersect with successful repair and regeneration in humans.In this chapter, we describe a chemical clearing approach using Clear Unobstructed Brain/Body Imaging Cocktails and Computational analysis (CUBIC), for obtaining high resolution images of the adult zebrafish heart. This approach permits three-dimensional reconstruction of cardiac vasculature throughout the entire organ. By applying CUBIC methodology to tissues from transgenic zebrafish reporter lines or in conjunction with immunofluorescent staining, optical slices can be be generated, negating the need for standard tissue processing and sectioning procedures and yielding higher resolution images. The resultant images enable a holistic view of the coronary blood and lymphatic vasculature during heart injury and regeneration. Herein, we describe our protocol for visualizing vessels in the adult zebrafish heart using these approaches.
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Affiliation(s)
- Lorna R Fiedler
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, Oxfordshire, UK.
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, Oxfordshire, UK.
| | - Paul R Riley
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, Oxfordshire, UK
| | - Roger Patient
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, Oxfordshire, UK
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, Oxfordshire, UK
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23
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Streef TJ, Smits AM. Epicardial Contribution to the Developing and Injured Heart: Exploring the Cellular Composition of the Epicardium. Front Cardiovasc Med 2021; 8:750243. [PMID: 34631842 PMCID: PMC8494983 DOI: 10.3389/fcvm.2021.750243] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 08/30/2021] [Indexed: 12/15/2022] Open
Abstract
The epicardium is an essential cell population during cardiac development. It contributes different cell types to the developing heart through epithelial-to-mesenchymal transition (EMT) and it secretes paracrine factors that support cardiac tissue formation. In the adult heart the epicardium is a quiescent layer of cells which can be reactivated upon ischemic injury, initiating an embryonic-like response in the epicardium that contributes to post-injury repair processes. Therefore, the epicardial layer is considered an interesting target population to stimulate endogenous repair mechanisms. To date it is still not clear whether there are distinct cell populations in the epicardium that contribute to specific lineages or aid in cardiac repair, or that the epicardium functions as a whole. To address this putative heterogeneity, novel techniques such as single cell RNA sequencing (scRNA seq) are being applied. In this review, we summarize the role of the epicardium during development and after injury and provide an overview of the most recent insights into the cellular composition and diversity of the epicardium.
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Affiliation(s)
| | - Anke M. Smits
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
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24
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GDF15 and Cardiac Cells: Current Concepts and New Insights. Int J Mol Sci 2021; 22:ijms22168889. [PMID: 34445593 PMCID: PMC8396208 DOI: 10.3390/ijms22168889] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 02/06/2023] Open
Abstract
Growth and differentiation factor 15 (GDF15) belongs to the transforming growth factor-β (TGF-β) superfamily of proteins. Glial-derived neurotrophic factor (GDNF) family receptor α-like (GFRAL) is an endogenous receptor for GDF15 detected selectively in the brain. GDF15 is not normally expressed in the tissue but is prominently induced by “injury”. Serum levels of GDF15 are also increased by aging and in response to cellular stress and mitochondrial dysfunction. It acts as an inflammatory marker and plays a role in the pathogenesis of cardiovascular diseases, metabolic disorders, and neurodegenerative processes. Identified as a new heart-derived endocrine hormone that regulates body growth, GDF15 has a local cardioprotective role, presumably due to its autocrine/paracrine properties: antioxidative, anti-inflammatory, antiapoptotic. GDF15 expression is highly induced in cardiomyocytes after ischemia/reperfusion and in the heart within hours after myocardial infarction (MI). Recent studies show associations between GDF15, inflammation, and cardiac fibrosis during heart failure and MI. However, the reason for this increase in GDF15 production has not been clearly identified. Experimental and clinical studies support the potential use of GDF15 as a novel therapeutic target (1) by modulating metabolic activity and (2) promoting an adaptive angiogenesis and cardiac regenerative process during cardiovascular diseases. In this review, we comment on new aspects of the biology of GDF15 as a cardiac hormone and show that GDF15 may be a predictive biomarker of adverse cardiac events.
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25
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Every Beat You Take-The Wilms' Tumor Suppressor WT1 and the Heart. Int J Mol Sci 2021; 22:ijms22147675. [PMID: 34299295 PMCID: PMC8306835 DOI: 10.3390/ijms22147675] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/06/2021] [Accepted: 07/16/2021] [Indexed: 12/23/2022] Open
Abstract
Nearly three decades ago, the Wilms’ tumor suppressor Wt1 was identified as a crucial regulator of heart development. Wt1 is a zinc finger transcription factor with multiple biological functions, implicated in the development of several organ systems, among them cardiovascular structures. This review summarizes the results from many research groups which allowed to establish a relevant function for Wt1 in cardiac development and disease. During development, Wt1 is involved in fundamental processes as the formation of the epicardium, epicardial epithelial-mesenchymal transition, coronary vessel development, valve formation, organization of the cardiac autonomous nervous system, and formation of the cardiac ventricles. Wt1 is further implicated in cardiac disease and repair in adult life. We summarize here the current knowledge about expression and function of Wt1 in heart development and disease and point out controversies to further stimulate additional research in the areas of cardiac development and pathophysiology. As re-activation of developmental programs is considered as paradigm for regeneration in response to injury, understanding of these processes and the molecules involved therein is essential for the development of therapeutic strategies, which we discuss on the example of WT1.
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26
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Trombino S, Curcio F, Cassano R, Curcio M, Cirillo G, Iemma F. Polymeric Biomaterials for the Treatment of Cardiac Post-Infarction Injuries. Pharmaceutics 2021; 13:1038. [PMID: 34371729 PMCID: PMC8309168 DOI: 10.3390/pharmaceutics13071038] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/29/2021] [Accepted: 07/05/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiac regeneration aims to reconstruct the heart contractile mass, preventing the organ from a progressive functional deterioration, by delivering pro-regenerative cells, drugs, or growth factors to the site of injury. In recent years, scientific research focused the attention on tissue engineering for the regeneration of cardiac infarct tissue, and biomaterials able to anatomically and physiologically adapt to the heart muscle have been proposed as valuable tools for this purpose, providing the cells with the stimuli necessary to initiate a complete regenerative process. An ideal biomaterial for cardiac tissue regeneration should have a positive influence on the biomechanical, biochemical, and biological properties of tissues and cells; perfectly reflect the morphology and functionality of the native myocardium; and be mechanically stable, with a suitable thickness. Among others, engineered hydrogels, three-dimensional polymeric systems made from synthetic and natural biomaterials, have attracted much interest for cardiac post-infarction therapy. In addition, biocompatible nanosystems, and polymeric nanoparticles in particular, have been explored in preclinical studies as drug delivery and tissue engineering platforms for the treatment of cardiovascular diseases. This review focused on the most employed natural and synthetic biomaterials in cardiac regeneration, paying particular attention to the contribution of Italian research groups in this field, the fabrication techniques, and the current status of the clinical trials.
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Affiliation(s)
| | | | - Roberta Cassano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy; (S.T.); (F.C.); (G.C.); (F.I.)
| | - Manuela Curcio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy; (S.T.); (F.C.); (G.C.); (F.I.)
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27
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Li W, Liu C, Burns N, Hayashi J, Yoshida A, Sajja A, González-Hernández S, Gao JL, Murphy PM, Kubota Y, Zou YR, Nagasawa T, Mukouyama YS. Alterations in the spatiotemporal expression of the chemokine receptor CXCR4 in endothelial cells cause failure of hierarchical vascular branching. Dev Biol 2021; 477:70-84. [PMID: 34015362 DOI: 10.1016/j.ydbio.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 12/18/2022]
Abstract
The C-X-C chemokine receptor CXCR4 and its ligand CXCL12 play an important role in organ-specific vascular branching morphogenesis. CXCR4 is preferentially expressed by arterial endothelial cells, and local secretion of CXCL12 determines the organotypic pattern of CXCR4+ arterial branching. Previous loss-of-function studies clearly demonstrated that CXCL12-CXCR4 signaling is necessary for proper arterial branching in the developing organs such as the skin and heart. To further understand the role of CXCL12-CXCR4 signaling in organ-specific vascular development, we generated a mouse model carrying the Cre recombinase-inducible Cxcr4 transgene. Endothelial cell-specific Cxcr4 gain-of-function embryos exhibited defective vascular remodeling and formation of a hierarchical vascular branching network in the developing skin and heart. Ectopic expression of CXCR4 in venous endothelial cells, but not in lymphatic endothelial cells, caused blood-filled, enlarged lymphatic vascular phenotypes, accompanied by edema. These data suggest that CXCR4 expression is tightly regulated in endothelial cells for appropriate vascular development in an organ-specific manner.
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Affiliation(s)
- Wenling Li
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Chengyu Liu
- Transgenic Core, National Heart, Lung, and Blood Institute, USA
| | - Nathan Burns
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Jeffery Hayashi
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Atsufumi Yoshida
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Aparna Sajja
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Sara González-Hernández
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Philip M Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yoshiaki Kubota
- Department of Anatomy, Institute for Advanced Medical Research, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Yong-Rui Zou
- The Feinstein Institute for Medical Research, Center for Autoimmune and Musculoskeletal Diseases, Manhasset, NY 11030, USA
| | - Takashi Nagasawa
- Laboratory of Stem Cell Biology and Developmental Immunology, Graduate School of Frontier Biosciences, Graduate School of Medicine, Immunology Frontier Research Center, World Premier International Research Center, Osaka University, Osaka 565-0871, Japan
| | - Yoh-Suke Mukouyama
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA.
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28
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Chen F, Chen J, Wang H, Tang H, Huang L, Wang S, Wang X, Fang X, Liu J, Li L, Ouyang K, Han Z. Histone Lysine Methyltransferase SETD2 Regulates Coronary Vascular Development in Embryonic Mouse Hearts. Front Cell Dev Biol 2021; 9:651655. [PMID: 33898448 PMCID: PMC8063616 DOI: 10.3389/fcell.2021.651655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/04/2021] [Indexed: 11/13/2022] Open
Abstract
Congenital heart defects are the most common birth defect and have a clear genetic component, yet genomic structural variations or gene mutations account for only a third of the cases. Epigenomic dynamics during human heart organogenesis thus may play a critical role in regulating heart development. However, it is unclear how histone mark H3K36me3 acts on heart development. Here we report that histone-lysine N-methyltransferase SETD2, an H3K36me3 methyltransferase, is a crucial regulator of the mouse heart epigenome. Setd2 is highly expressed in embryonic stages and accounts for a predominate role of H3K36me3 in the heart. Loss of Setd2 in cardiac progenitors results in obvious coronary vascular defects and ventricular non-compaction, leading to fetus lethality in mid-gestation, without affecting peripheral blood vessel, yolk sac, and placenta formation. Furthermore, deletion of Setd2 dramatically decreased H3K36me3 level and impacted the transcriptional landscape of key cardiac-related genes, including Rspo3 and Flrt2. Taken together, our results strongly suggest that SETD2 plays a primary role in H3K36me3 and is critical for coronary vascular formation and heart development in mice.
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Affiliation(s)
- Fengling Chen
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Jiewen Chen
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Hong Wang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Huayuan Tang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Lei Huang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Shijia Wang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Xinru Wang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Xi Fang
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Jie Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Li Li
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.,School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Kunfu Ouyang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Zhen Han
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
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29
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Shen M, Quertermous T, Fischbein MP, Wu JC. Generation of Vascular Smooth Muscle Cells From Induced Pluripotent Stem Cells: Methods, Applications, and Considerations. Circ Res 2021; 128:670-686. [PMID: 33818124 PMCID: PMC10817206 DOI: 10.1161/circresaha.120.318049] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The developmental origin of vascular smooth muscle cells (VSMCs) has been increasingly recognized as a major determinant for regional susceptibility or resistance to vascular diseases. As a human material-based complement to animal models and human primary cultures, patient induced pluripotent stem cell iPSC-derived VSMCs have been leveraged to conduct basic research and develop therapeutic applications in vascular diseases. However, iPSC-VSMCs (induced pluripotent stem cell VSMCs) derived by most existing induction protocols are heterogeneous in developmental origins. In this review, we summarize signaling networks that govern in vivo cell fate decisions and in vitro derivation of distinct VSMC progenitors, as well as key regulators that terminally specify lineage-specific VSMCs. We then highlight the significance of leveraging patient-derived iPSC-VSMCs for vascular disease modeling, drug discovery, and vascular tissue engineering and discuss several obstacles that need to be circumvented to fully unleash the potential of induced pluripotent stem cells for precision vascular medicine.
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Affiliation(s)
- Mengcheng Shen
- Stanford Cardiovascular Institute
- Division of Cardiovascular Medicine, Department of Medicine
| | - Thomas Quertermous
- Stanford Cardiovascular Institute
- Division of Cardiovascular Medicine, Department of Medicine
| | | | - Joseph C. Wu
- Stanford Cardiovascular Institute
- Division of Cardiovascular Medicine, Department of Medicine
- Department of Radiology, Stanford University School of Medicine, Stanford, CA
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Farache Trajano L, Smart N. Immunomodulation for optimal cardiac regeneration: insights from comparative analyses. NPJ Regen Med 2021; 6:8. [PMID: 33589632 PMCID: PMC7884783 DOI: 10.1038/s41536-021-00118-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/14/2021] [Indexed: 02/06/2023] Open
Abstract
Despite decades of research, regeneration of the infarcted human heart remains an unmet ambition. A significant obstacle facing experimental regenerative therapies is the hostile immune response which arises following a myocardial infarction (MI). Upon cardiac damage, sterile inflammation commences via the release of pro-inflammatory meditators, leading to the migration of neutrophils, eosinophils and monocytes, as well as the activation of local vascular cells and fibroblasts. This response is amplified by components of the adaptive immune system. Moreover, the physical trauma of the infarction and immune-mediated tissue injury provides a supply of autoantigens, perpetuating a cycle of autoreactivity, which further contributes to adverse remodelling. A gradual shift towards an immune-resolving environment follows, culminating in the formation of a collagenous scar, which compromises cardiac function, ultimately driving the development of heart failure. Comparing the human heart with those of animal models that are capable of cardiac regeneration reveals key differences in the innate and adaptive immune responses to MI. By modulating key immune components to better resemble those of regenerative species, a cardiac environment may be established which would, either independently or via the synergistic application of emerging regenerative therapies, improve functional recovery post-MI.
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Affiliation(s)
- Luiza Farache Trajano
- British Heart Foundation Centre of Regenerative Medicine, Burdon Sanderson Cardiac Science centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - Nicola Smart
- British Heart Foundation Centre of Regenerative Medicine, Burdon Sanderson Cardiac Science centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK.
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Redpath AN, Smart N. Recapturing embryonic potential in the adult epicardium: Prospects for cardiac repair. Stem Cells Transl Med 2020; 10:511-521. [PMID: 33222384 PMCID: PMC7980211 DOI: 10.1002/sctm.20-0352] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/07/2020] [Accepted: 10/25/2020] [Indexed: 12/12/2022] Open
Abstract
Research into potential targets for cardiac repair encompasses recognition of tissue‐resident cells with intrinsic regenerative properties. The adult vertebrate heart is covered by mesothelium, named the epicardium, which becomes active in response to injury and contributes to repair, albeit suboptimally. Motivation to manipulate the epicardium for treatment of myocardial infarction is deeply rooted in its central role in cardiac formation and vasculogenesis during development. Moreover, the epicardium is vital to cardiac muscle regeneration in lower vertebrate and neonatal mammalian‐injured hearts. In this review, we discuss our current understanding of the biology of the mammalian epicardium in development and injury. Considering present challenges in the field, we further contemplate prospects for reinstating full embryonic potential in the adult epicardium to facilitate cardiac regeneration.
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Affiliation(s)
- Andia N Redpath
- Department of Physiology, Anatomy and Genetics, British Heart Foundation Centre of Regenerative Medicine, Burdon Sanderson Cardiac Science Centre, University of Oxford, Oxford, UK
| | - Nicola Smart
- Department of Physiology, Anatomy and Genetics, British Heart Foundation Centre of Regenerative Medicine, Burdon Sanderson Cardiac Science Centre, University of Oxford, Oxford, UK
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Autophagy modulates mesenchymal-to-endothelial transition via p53. Aging (Albany NY) 2020; 12:22112-22121. [PMID: 33186920 PMCID: PMC7695417 DOI: 10.18632/aging.104065] [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: 01/08/2020] [Accepted: 08/22/2020] [Indexed: 12/11/2022]
Abstract
Mesenchymal-to-endothelial transition (MEndT) is one of the mechanisms that influences cardiac fibrosis, which is a key process in cardiac remodeling. It has been reported that autophagy inhibits endothelial cell transition. However, whether autophagy could modulate MEndT in cardiac fibrosis has not yet been investigated. Here, we discussed the association between autophagy and MEndT and its possible mechanism. In this study, we induced endothelial-to-mesenchymal transition using transforming growth factor-β to generate mesenchymal cells and fibroblasts in wild-type human umbilical vein endothelial cells and cells with p53 knockout or overexpression. Then, autophagy was induced by Earle's balanced salt solution (EBSS) and was inhibited by bafilomycin A1 or lentivirus-ATG5-shRNA. The expression levels of MEndT and the autophagy markers CD31, VE-Cadherin, Vimentin, α-SMA, LC3, p62 and p53 were examined. We found that activation of autophagy could promote MEndT and increase cytoplasmic and total expression of p53, that but nuclear p53 expression was decreased, and that inhibition of autophagy activation could reverse the effect of EBSS. Moreover, after knockout of nuclear p53, autophagy promoted MEndT, while autophagy inhibited MEndT in p53 overexpressing cells. Our results demonstrate that autophagy modulate MEndT by nuclear p53 provide a new strategy for the treatment of fibrosis diseases.
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