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Smadja DM. Extracellular Microvesicles vs. Mitochondria: Competing for the Top Spot in Cardiovascular Regenerative Medicine. Stem Cell Rev Rep 2024; 20:1813-1818. [PMID: 38976143 DOI: 10.1007/s12015-024-10758-8] [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] [Accepted: 06/25/2024] [Indexed: 07/09/2024]
Abstract
Regenerative medicine aims to restore, replace, and regenerate human cells, tissues, and organs. Despite significant advancements, many cell therapy trials for cardiovascular diseases face challenges like cell survival and immune compatibility, with benefits largely stemming from paracrine effects. Two promising therapeutic tools have been recently emerged in cardiovascular diseases: extracellular vesicles (EVs) and mitochondrial transfer. Concerning EVs, the first pivotal study with EV-enriched secretome derived from cardiovascular progenitor cells has been done treating heart failure. This first in man demonstrated the safety and feasibility of repeated intravenous infusions and highlighted significant clinical improvements, including enhanced cardiac function and reduced symptoms in heart failure patients. The second study uncovered a novel mechanism of endothelial regeneration through mitochondrial transfer via tunneling nanotubes (TNTs). This research showed that mesenchymal stromal cells (MSCs) transfer mitochondria to endothelial cells, significantly enhancing their bioenergetics and vessel-forming capabilities. This mitochondrial transfer was crucial for endothelial cell engraftment and function, offering a new strategy for vascular regeneration without the need for additional cell types. Combining EV and mitochondrial strategies presents new clinical opportunities. These approaches could revolutionize regenerative medicine, offering new hope for treating cardiovascular and other degenerative diseases. Continued research and clinical trials will be crucial in optimizing these therapies, potentially leading to personalized medicine approaches that enhance patient outcomes.
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Affiliation(s)
- David M Smadja
- Université Paris Cité, INSERM, Innovative Therapies in Hemostasis, Paris, F-75006, France.
- Hematology Department, AP-HP, Georges Pompidou European Hospital, Inserm UMR-S1140, 56 rue Leblanc, Paris, F-75015, France.
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2
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Laan SNJ, Lenderink BG, Eikenboom JCJ, Bierings R. Endothelial colony-forming cells in the spotlight: insights into the pathophysiology of von Willebrand disease and rare bleeding disorders. J Thromb Haemost 2024:S1538-7836(24)00497-5. [PMID: 39243860 DOI: 10.1016/j.jtha.2024.08.011] [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: 03/20/2024] [Revised: 08/19/2024] [Accepted: 08/29/2024] [Indexed: 09/09/2024]
Abstract
Endothelial cells deliver a vital contribution to the maintenance of hemostasis by constituting an anatomical as well as functional barrier between the blood and the rest of the body. Apart from the physical barrier function, endothelial cells maintain the hemostatic equilibrium by their pro- and anticoagulant functions. An important part of their procoagulant contribution is the production of von Willebrand factor (VWF), which is a carrier protein for coagulation factor VIII and facilitates the formation of a platelet plug. Thus, VWF is indispensable for both primary and secondary hemostasis, which is exemplified by the bleeding disorder von Willebrand disease that results from qualitative or quantitative deficiencies in VWF. A cellular model that was found to accurately reflect the endothelium and its secretory organelles are endothelial colony-forming cells, which can be readily isolated from peripheral blood and constitute a robust ex vivo model to investigate the donor's endothelial cell function. This review summarizes some of the valuable insights on biology of VWF and pathogenic mechanisms of von Willebrand disease that have been made possible using studies with endothelial colony-forming cells derived from patients with bleeding disorders.
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Affiliation(s)
- Sebastiaan N J Laan
- Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Centre, Leiden, the Netherlands; Department of Hematology, Erasmus University Medical Centre, Rotterdam, the Netherlands. https://twitter.com/laan_bas
| | - Britte G Lenderink
- Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - Jeroen C J Eikenboom
- Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - Ruben Bierings
- Department of Hematology, Erasmus University Medical Centre, Rotterdam, the Netherlands.
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Ackermann M, Werlein C, Plucinski E, Leypold S, Kühnel MP, Verleden SE, Khalil HA, Länger F, Welte T, Mentzer SJ, Jonigk DD. The role of vasculature and angiogenesis in respiratory diseases. Angiogenesis 2024; 27:293-310. [PMID: 38580869 PMCID: PMC11303512 DOI: 10.1007/s10456-024-09910-2] [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: 12/20/2023] [Accepted: 02/11/2024] [Indexed: 04/07/2024]
Abstract
In European countries, nearly 10% of all hospital admissions are related to respiratory diseases, mainly chronic life-threatening diseases such as COPD, pulmonary hypertension, IPF or lung cancer. The contribution of blood vessels and angiogenesis to lung regeneration, remodeling and disease progression has been increasingly appreciated. The vascular supply of the lung shows the peculiarity of dual perfusion of the pulmonary circulation (vasa publica), which maintains a functional blood-gas barrier, and the bronchial circulation (vasa privata), which reveals a profiled capacity for angiogenesis (namely intussusceptive and sprouting angiogenesis) and alveolar-vascular remodeling by the recruitment of endothelial precursor cells. The aim of this review is to outline the importance of vascular remodeling and angiogenesis in a variety of non-neoplastic and neoplastic acute and chronic respiratory diseases such as lung infection, COPD, lung fibrosis, pulmonary hypertension and lung cancer.
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Affiliation(s)
- Maximilian Ackermann
- Institute of Pathology, University Clinics of RWTH University, Aachen, Germany.
- Institute of Pathology and Molecular Pathology, Helios University Clinic Wuppertal, University of Witten/Herdecke, Witten, Germany.
- Institute of Anatomy, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany.
| | | | - Edith Plucinski
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | - Sophie Leypold
- Institute of Pathology, University Clinics of RWTH University, Aachen, Germany
| | - Mark P Kühnel
- Institute of Pathology, University Clinics of RWTH University, Aachen, Germany
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany
| | - Stijn E Verleden
- Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), University of Antwerp, Antwerp, Belgium
| | - Hassan A Khalil
- Division of Thoracic and Cardiac Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, USA
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Florian Länger
- Institute of Pathology, University Clinics of RWTH University, Aachen, Germany
| | - Tobias Welte
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
| | - Steven J Mentzer
- Division of Thoracic and Cardiac Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, USA
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Danny D Jonigk
- Institute of Pathology, University Clinics of RWTH University, Aachen, Germany
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany
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Khider L, Planquette B, Smadja DM, Sanchez O, Rial C, Goudot G, Messas E, Mirault T, Gendron N. Acute phase determinant of post-thrombotic syndrome: A review of the literature. Thromb Res 2024; 238:11-18. [PMID: 38643521 DOI: 10.1016/j.thromres.2024.04.004] [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: 11/17/2023] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND Post-thrombotic syndrome (PTS) is the main long-term complication of deep vein thrombosis (DVT). Several therapies are being evaluated to prevent or to treat PTS. Identifying the patients most likely to benefit from these therapies presents a significant challenge. OBJECTIVES The objective of this review was to identify risk factors for PTS during the acute phase of DVT. ELIGIBILITY CRITERIA We searched the PubMed and Cochrane databases for studies published between January 2000 and January 2021, including randomized clinical trials, meta-analyses, systematic reviews and observational studies. RESULTS Risk factors for PTS such as proximal location of DVT, obesity, chronic venous disease, history of DVT are associated with higher risk of PTS. On the initial ultrasound-Doppler, a high thrombotic burden appears to be a predictor of PTS. Among the evaluated biomarkers, some inflammatory markers such as ICAM-1, MMP-1 and MMP-8 appear to be associated with a higher risk of developing PTS. Coagulation disorders are not associated with risk of developing PTS. Role of endothelial biomarkers in predicting PTS has been poorly explored. Lastly, vitamin K antagonist was associated with a higher risk of developing PTS when compared to direct oral anticoagulants and low molecular weight heparin. CONCLUSIONS Several risk factors during the acute phase of VTE are associated with an increased risk of developing PTS. There is a high-unmet medical need to identify potential biomarkers for early detection of patients at risk of developing PTS after VTE. Inflammatory and endothelial biomarkers should be explored in larger prospective studies to identify populations that could benefit from new therapies.
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Affiliation(s)
- Lina Khider
- Université Paris Cité, Innovative Therapies in Haemostasis, INSERM, Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France.
| | - Benjamin Planquette
- Université Paris Cité, Innovative Therapies in Haemostasis, INSERM, 75006 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France; Respiratory Medicine Department, Assistance Publique - Hôpitaux de Paris, 75015 Paris, France
| | - David M Smadja
- Université Paris Cité, Innovative Therapies in Haemostasis, INSERM, 75006 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France; Hematology Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France
| | - Olivier Sanchez
- Université Paris Cité, Innovative Therapies in Haemostasis, INSERM, 75006 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France; Respiratory Medicine Department, Assistance Publique - Hôpitaux de Paris, 75015 Paris, France
| | - Carla Rial
- Université Paris Cité, Innovative Therapies in Haemostasis, INSERM, Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France
| | - Guillaume Goudot
- Université Paris Cité, PARCC, INSERM U970, Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France
| | - Emmanuel Messas
- Université Paris Cité, PARCC, INSERM U970, Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France
| | - Tristan Mirault
- Université Paris Cité, PARCC, INSERM U970, Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France
| | - Nicolas Gendron
- Université Paris Cité, Innovative Therapies in Haemostasis, INSERM, 75006 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France; Hematology Department, Assistance Publique Hôpitaux de Paris, 75015 Paris, France
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Aprile D, Patrone D, Peluso G, Galderisi U. Multipotent/pluripotent stem cell populations in stromal tissues and peripheral blood: exploring diversity, potential, and therapeutic applications. Stem Cell Res Ther 2024; 15:139. [PMID: 38735988 PMCID: PMC11089765 DOI: 10.1186/s13287-024-03752-x] [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: 04/04/2024] [Accepted: 05/02/2024] [Indexed: 05/14/2024] Open
Abstract
The concept of "stemness" incorporates the molecular mechanisms that regulate the unlimited self-regenerative potential typical of undifferentiated primitive cells. These cells possess the unique ability to navigate the cell cycle, transitioning in and out of the quiescent G0 phase, and hold the capacity to generate diverse cell phenotypes. Stem cells, as undifferentiated precursors endow with extraordinary regenerative capabilities, exhibit a heterogeneous and tissue-specific distribution throughout the human body. The identification and characterization of distinct stem cell populations across various tissues have revolutionized our understanding of tissue homeostasis and regeneration. From the hematopoietic to the nervous and musculoskeletal systems, the presence of tissue-specific stem cells underlines the complex adaptability of multicellular organisms. Recent investigations have revealed a diverse cohort of non-hematopoietic stem cells (non-HSC), primarily within bone marrow and other stromal tissue, alongside established hematopoietic stem cells (HSC). Among these non-HSC, a rare subset exhibits pluripotent characteristics. In vitro and in vivo studies have demonstrated the remarkable differentiation potential of these putative stem cells, known by various names including multipotent adult progenitor cells (MAPC), marrow-isolated adult multilineage inducible cells (MIAMI), small blood stem cells (SBSC), very small embryonic-like stem cells (VSELs), and multilineage differentiating stress enduring cells (MUSE). The diverse nomenclatures assigned to these primitive stem cell populations may arise from different origins or varied experimental methodologies. This review aims to present a comprehensive comparison of various subpopulations of multipotent/pluripotent stem cells derived from stromal tissues. By analysing isolation techniques and surface marker expression associated with these populations, we aim to delineate the similarities and distinctions among stromal tissue-derived stem cells. Understanding the nuances of these tissue-specific stem cells is critical for unlocking their therapeutic potential and advancing regenerative medicine. The future of stem cells research should prioritize the standardization of methodologies and collaborative investigations in shared laboratory environments. This approach could mitigate variability in research outcomes and foster scientific partnerships to fully exploit the therapeutic potential of pluripotent stem cells.
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Affiliation(s)
- Domenico Aprile
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, Naples, Italy
| | - Deanira Patrone
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, Naples, Italy
| | - Gianfranco Peluso
- Faculty of Medicine and Surgery, Saint Camillus International, University of Health Sciences, Rome, Italy
| | - Umberto Galderisi
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, Naples, Italy.
- Genome and Stem Cell Center (GENKÖK), Erciyes University, Kayseri, Turkey.
- Center for Biotechnology, Sbarro Institute for Cancer Research and Molecular Medicine Temple University, Philadelphia, PA, USA.
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Jiang W, Jia W, Dong C. Under the dual effect of inflammation and pulmonary fibrosis, CTD-ILD patients possess a greater susceptibility to VTE. Thromb J 2024; 22:34. [PMID: 38576023 PMCID: PMC10993540 DOI: 10.1186/s12959-024-00599-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/18/2024] [Indexed: 04/06/2024] Open
Abstract
As an autoimmune disease, the persistent systemic inflammatory response associated with connective tissue disease (CTD) is involved in the development of venous thromboembolism (VTE). However, clinical data showed that the risk of VTE in patients differed between subtypes of CTD, suggesting that different subtypes may have independent mechanisms to promote the development of VTE, but the specific mechanism lacks sufficient research at present. The development of pulmonary fibrosis also contributes to the development of VTE, and therefore, patients with CTD-associated interstitial lung disease (CTD-ILD) may be at higher risk of VTE than patients with CTD alone or patients with ILD alone. In addition, the activation of the coagulation cascade response will drive further progression of the patient's pre-existing pulmonary fibrosis, which will continue to increase the patient's risk of VTE and adversely affect prognosis. Currently, the treatment for CTD-ILD is mainly immunosuppressive and antirheumatic therapy, such as the use of glucocorticoids and janus kinase-inhibitors (JAKis), but, paradoxically, these drugs are also involved in the formation of patients' coagulation tendency, making the clinical treatment of CTD-ILD patients with a higher risk of developing VTE challenging. In this article, we review the potential risk factors and related mechanisms for the development of VTE in CTD-ILD patients to provide a reference for clinical treatment and prevention.
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Affiliation(s)
- Wenli Jiang
- Department of Pulmonary and Critical Care Medicine, Second Hospital, Jilin University, 130041, Changchun, China
| | - Wenhui Jia
- Department of Pulmonary and Critical Care Medicine, Second Hospital, Jilin University, 130041, Changchun, China
| | - Chunling Dong
- Department of Pulmonary and Critical Care Medicine, Second Hospital, Jilin University, 130041, Changchun, China.
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Goncharov NV, Popova PI, Kudryavtsev IV, Golovkin AS, Savitskaya IV, Avdonin PP, Korf EA, Voitenko NG, Belinskaia DA, Serebryakova MK, Matveeva NV, Gerlakh NO, Anikievich NE, Gubatenko MA, Dobrylko IA, Trulioff AS, Aquino AD, Jenkins RO, Avdonin PV. Immunological Profile and Markers of Endothelial Dysfunction in Elderly Patients with Cognitive Impairments. Int J Mol Sci 2024; 25:1888. [PMID: 38339164 PMCID: PMC10855959 DOI: 10.3390/ijms25031888] [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: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
The process of aging is accompanied by a dynamic restructuring of the immune response, a phenomenon known as immunosenescence. Further, damage to the endothelium can be both a cause and a consequence of many diseases, especially in elderly people. The purpose of this study was to carry out immunological and biochemical profiling of elderly people with acute ischemic stroke (AIS), chronic cerebral circulation insufficiency (CCCI), prediabetes or newly diagnosed type II diabetes mellitus (DM), and subcortical ischemic vascular dementia (SIVD). Socio-demographic, lifestyle, and cognitive data were obtained. Biochemical, hematological, and immunological analyses were carried out, and extracellular vesicles (EVs) with endothelial CD markers were assessed. The greatest number of significant deviations from conditionally healthy donors (HDs) of the same age were registered in the SIVD group, a total of 20, of which 12 were specific and six were non-specific but with maximal differences (as compared to the other three groups) from the HDs group. The non-specific deviations were for the MOCA (Montreal Cognitive Impairment Scale), the MMSE (Mini Mental State Examination) and life satisfaction self-assessment scores, a decrease of albumin levels, and ADAMTS13 (a Disintegrin and Metalloproteinase with a Thrombospondin Type 1 motif, member 13) activity, and an increase of the VWF (von Willebrand factor) level. Considering the significant changes in immunological parameters (mostly Th17-like cells) and endothelial CD markers (CD144 and CD34), vascular repair was impaired to the greatest extent in the DM group. The AIS patients showed 12 significant deviations from the HD controls, including three specific to this group. These were high NEFAs (non-esterified fatty acids) and CD31 and CD147 markers of EVs. The lowest number of deviations were registered in the CCCI group, nine in total. There were significant changes from the HD controls with no specifics to this group, and just one non-specific with a maximal difference from the control parameters, which was α1-AGP (alpha 1 acid glycoprotein, orosomucoid). Besides the DM patients, impairments of vascular repair were also registered in the CCCI and AIS patients, with a complete absence of such in patients with dementia (SIVD group). On the other hand, microvascular damage seemed to be maximal in the latter group, considering the biochemical indicators VWF and ADAMTS13. In the DM patients, a maximum immune response was registered, mainly with Th17-like cells. In the CCCI group, the reaction was not as pronounced compared to other groups of patients, which may indicate the initial stages and/or compensatory nature of organic changes (remodeling). At the same time, immunological and biochemical deviations in SIVD patients indicated a persistent remodeling in microvessels, chronic inflammation, and a significant decrease in the anabolic function of the liver and other tissues. The data obtained support two interrelated assumptions. Taking into account the primary biochemical factors that trigger the pathological processes associated with vascular pathology and related diseases, the first assumption is that purine degradation in skeletal muscle may be a major factor in the production of uric acid, followed by its production by non-muscle cells, the main of which are endothelial cells. Another assumption is that therapeutic factors that increase the levels of endothelial progenitor cells may have a therapeutic effect in reducing the risk of cerebrovascular disease and related neurodegenerative diseases.
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Affiliation(s)
- Nikolay V. Goncharov
- Research Institute of Hygiene, Occupational Pathology and Human Ecology of the Federal Medical Biological Agency, bld 93 Kuzmolovsky, Leningrad Region 188663, Russia
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | | | | | | | | | - Piotr P. Avdonin
- Koltsov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow 119334, Russia
| | - Ekaterina A. Korf
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | - Natalia G. Voitenko
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | - Daria A. Belinskaia
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | | | | | | | | | | | - Irina A. Dobrylko
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | | | - Arthur D. Aquino
- Almazov National Medical Research Centre, St. Petersburg 197341, Russia
| | - Richard O. Jenkins
- School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Pavel V. Avdonin
- Koltsov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow 119334, Russia
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Chen Y, Wan G, Li Z, Liu X, Zhao Y, Zou L, Liu W. Endothelial progenitor cells in pregnancy-related diseases. Clin Sci (Lond) 2023; 137:1699-1719. [PMID: 37986615 PMCID: PMC10665129 DOI: 10.1042/cs20230853] [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: 08/01/2023] [Revised: 10/09/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023]
Abstract
Placental neovascularization plays a crucial role in fetomaternal circulation throughout pregnancy and is dysregulated in several pregnancy-related diseases, including preeclampsia, gestational diabetes mellitus, and fetal growth restriction. Endothelial progenitor cells (EPCs) are a heterogeneous population of cells that differentiate into mature endothelial cells, which influence vascular homeostasis, neovascularization, and endothelial repair. Since their discovery in 1997 by Asahara et al., the role of EPCs in vascular biology has garnered a lot of interest. However, although pregnancy-related conditions are associated with changes in the number and function of EPCs, the reported findings are conflicting. This review discusses the discovery, isolation, and classification of EPCs and highlights discrepancies between current studies. Overviews of how various diseases affect the numbers and functions of EPCs, the role of EPCs as biomarkers of pregnancy disorders, and the potential therapeutic applications involving EPCs are also provided.
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Affiliation(s)
- Yangyang Chen
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Gui Wan
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Zeyun Li
- The First Clinical School of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoxia Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yin Zhao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Li Zou
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Weifang Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Liang G, He Z, Peng H, Zeng M, Zhang X. Cigarette smoke extract induces the senescence of endothelial progenitor cells by upregulating p300. Tob Induc Dis 2023; 21:122. [PMID: 37794858 PMCID: PMC10546488 DOI: 10.18332/tid/170581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/29/2023] [Accepted: 08/04/2023] [Indexed: 10/06/2023] Open
Abstract
INTRODUCTION Endothelial progenitor cells (EPCs) are the main source of endothelial cells. The senescence of EPCs is involved in the pathogenesis of chronic obstructive pulmonary disease (COPD). Cigarette smoke extract (CSE) can directly induce the dysfunction and increased expression of senescence-related markers in EPCs cultured in vitro. Histone acetyltransferase p300 is a transcriptional activator, and its changes can lead to cell senescence. The present study investigated whether CSE can induce the senescence of EPCs by upregulating p300. METHODS EPCs were isolated from bone marrow of C57BL/6J mice by density gradient centrifugation. The p300 inhibitor C646 and agonist CTPB were used to interfere with EPCs, cell cycle and apoptosis were detected by flow cytometry, the proportion of senile cells was counted by β-galactosidase staining, the protein expression of p300, H4K12, Cyclin D1, TERT and Ki67 were detected by western blot. RESULTS Compared with the control group, the cell cycle of CSE group and CTPB group were blocked, the apoptosis rate and early apoptosis rate were increased, the proportion of senile cells counted by β-galactosidase staining was increased, the expression of p300 and H4K12 protein were increased, the expression of Cyclin D1, TERT and Ki67 protein were decreased. C646 could partly alleviate the damages caused by CSE. CONCLUSIONS CSE may promote the apoptosis and senescence of EPCs by upregulating the expression of p300 and H4K12 protein, thus preventing the transition of EPCs from G1 phase to S phase, affecting telomerase synthesis, and reducing EPCs proliferation.
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Affiliation(s)
- Guibin Liang
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhihui He
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Huaihuai Peng
- Department of Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Menghao Zeng
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Xuefeng Zhang
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
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10
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Schwarz N, Yadegari H. Potentials of Endothelial Colony-Forming Cells: Applications in Hemostasis and Thrombosis Disorders, from Unveiling Disease Pathophysiology to Cell Therapy. Hamostaseologie 2023; 43:325-337. [PMID: 37857295 DOI: 10.1055/a-2101-5936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
Endothelial colony-forming cells (ECFCs) are endothelial progenitor cells circulating in a limited number in peripheral blood. They can give rise to mature endothelial cells (ECs) and, with intrinsically high proliferative potency, contribute to forming new blood vessels and restoring the damaged endothelium in vivo. ECFCs can be isolated from peripheral blood or umbilical cord and cultured to generate large amounts of autologous ECs in vitro. Upon differentiation in culture, ECFCs are excellent surrogates for mature ECs showing the same phenotypic, genotypic, and functional features. In the last two decades, the ECFCs from various vascular disease patients have been widely used to study the diseases' pathophysiology ex vivo and develop cell-based therapeutic approaches, including vascular regenerative therapy, tissue engineering, and gene therapy. In the current review, we will provide an updated overview of past studies, which have used ECFCs to elucidate the molecular mechanisms underlying the pathogenesis of hemostatic disorders in basic research. Additionally, we summarize preceding studies demonstrating the utility of ECFCs as cellular tools for diagnostic or therapeutic clinical applications in thrombosis and hemostasis.
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Affiliation(s)
- Nadine Schwarz
- Institute of Experimental Hematology and Transfusion Medicine, University Hospital Bonn, Bonn, Germany
| | - Hamideh Yadegari
- Institute of Experimental Hematology and Transfusion Medicine, University Hospital Bonn, Bonn, Germany
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11
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Cras A, Larghero J, Rossi E, Blandinières A, Gaussem P, Smadja DM. Nestin is a New Partner in Endothelial Colony Forming Cell Angiogenic Potential. Stem Cell Rev Rep 2023; 19:2541-2550. [PMID: 37452965 DOI: 10.1007/s12015-023-10587-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2023] [Indexed: 07/18/2023]
Abstract
Nestin, an intermediate filament protein expressed by progenitor cells, is associated with tissue regeneration. Although nestin expression has been reported in poorly differentiated and newly formed blood vessels, its role in endothelial cells remains unclear. In this study, we investigated the involvement of nestin in the angiogenic properties of endothelial colony-forming cells (ECFCs) derived from human umbilical cord blood. Our results demonstrate that ECFCs express high levels of nestin, and that its inhibition by small interfering RNAs decreased ECFC proliferation, migration in response to SDF-1 and VEGF-A, tubulogenesis, and adhesion on collagen. These effects are associated with modulation of focal adhesion kinase phosphorylation. Furthermore, nestin silencing resulted in reduced revascularization in a mouse hindlimb ischemia model. In conclusion, these findings provide evidence that nestin more than being a structural protein, is an active player in ECFC angiogenic properties.
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Affiliation(s)
- Audrey Cras
- Université de Paris Cité, INSERM, Innovative Therapies in Hemostasis, F-75006, Paris, France
- Cell therapy unit, AP-HP, Saint Louis Hospital, F-75010, Paris, France
| | - Jérôme Larghero
- Cell therapy unit, AP-HP, Saint Louis Hospital, F-75010, Paris, France
- Université de Paris Cité, INSERM, U976, CIC-BT, F-75010, Paris, France
| | - Elisa Rossi
- Université de Paris Cité, INSERM, Innovative Therapies in Hemostasis, F-75006, Paris, France
| | - Adeline Blandinières
- Université de Paris Cité, INSERM, Innovative Therapies in Hemostasis, F-75006, Paris, France
- Hematology department, AP-HP, Georges Pompidou European Hospital, F-75015, Paris, France
| | - Pascale Gaussem
- Université de Paris Cité, INSERM, Innovative Therapies in Hemostasis, F-75006, Paris, France
- Hematology department, AP-HP, Georges Pompidou European Hospital, F-75015, Paris, France
| | - David M Smadja
- Université de Paris Cité, INSERM, Innovative Therapies in Hemostasis, F-75006, Paris, France.
- Hematology department, AP-HP, Georges Pompidou European Hospital, F-75015, Paris, France.
- Inserm Innovative Therapies in Haemostasis, 56 rue Leblanc, F-75015, Paris, France.
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12
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Blandinières A, Randi AM, Paschalaki KE, Guerin CL, Melero-Martin JM, Smadja DM. Results of an international survey about methods used to isolate human endothelial colony-forming cells: guidance from the SSC on Vascular Biology of the ISTH. J Thromb Haemost 2023; 21:2611-2619. [PMID: 37336438 DOI: 10.1016/j.jtha.2023.06.014] [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: 02/27/2023] [Revised: 05/22/2023] [Accepted: 06/03/2023] [Indexed: 06/21/2023]
Abstract
BACKGROUND Assessment of endothelial colony-forming cell (ECFC) number and vasculogenic properties is crucial for exploring vascular diseases and regeneration strategies. A previous survey of the Scientific and Standardization Committee on Vascular Biology of the International Society on Thrombosis and Haemostasis clarified key methodological points but highlighted a lack of standardization associated with ECFC culture. OBJECTIVES The aim of this study was to provide expert consensus guidance on ECFC isolation and culture. METHODS We surveyed 21 experts from 10 different countries using a questionnaire proposed during the 2019 International Society on Thrombosis and Haemostasis Congress in Melbourne (Australia) to attain a consensus on ECFC isolation and culture. RESULTS We report here the consolidated results of the questionnaire. There was agreement on several general statements, mainly the technical aspects of ECFC isolation and cell culture. In contrast, on the points concerning the definition of a colony of ECFCs, the quantification of ECFCs, and the estimation of their age (in days or number of passages), the expert opinions were widely dispersed. CONCLUSION Our survey clearly indicates an unmet need for rigorous standardization, multicenter comparison of results, and validation of ECFC isolation and culture procedures for clinical laboratory practice and robustness of results. To this end, we propose a standardized protocol for the isolation and expansion of ECFCs from umbilical cord and adult peripheral blood.
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Affiliation(s)
- Adeline Blandinières
- Université Paris-Cité, Innovative Therapies in Hemostasis, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France; Hematology Department, Assistance Publique-Hôpitaux de Paris (AP-HP), Georges Pompidou European Hospital, Paris, France
| | - Anna M Randi
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Coralie L Guerin
- Université Paris-Cité, Innovative Therapies in Hemostasis, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France; Institut Curie, Cytometry Platform, Paris, France
| | - Juan M Melero-Martin
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts, USA; Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA; Harvard Stem Cell Institute, Cambridge, Massachusetts, USA
| | - David M Smadja
- Université Paris-Cité, Innovative Therapies in Hemostasis, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France; Hematology Department, Assistance Publique-Hôpitaux de Paris (AP-HP), Georges Pompidou European Hospital, Paris, France.
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13
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Bujko K, Ciechanowicz AK, Kucia M, Ratajczak MZ. Molecular analysis and comparison of CD34 + and CD133 + very small embryonic-like stem cells purified from umbilical cord blood. Cytometry A 2023; 103:703-711. [PMID: 37246957 DOI: 10.1002/cyto.a.24767] [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: 04/06/2023] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 05/30/2023]
Abstract
Very small embryonic like stem cells (VSELs) are a dormant population of stem cells that, as proposed, are deposited during embryogenesis in various tissues, including bone marrow (BM). These cells are released under steady state conditions from their tissue locations and circulate at a low level in peripheral blood (PB). Their number increases in response to stressors as well as tissue/organ damage. This increase is evident during neonatal delivery, as delivery stress prompts enrichment of umbilical cord blood (UCB) with VSELs. These cells could be purified from BM, PB, and UCB by multiparameter sorting as a population of very small CXCR4+ Lin- CD45- cells that express the CD34 or CD133 antigen. In this report, we evaluated a number of CD34+ Lin- CD45- and CD133+ Lin- CD45- UCB-derived VSELs. We also performed initial molecular characterization of both cell populations for expression of selected pluripotency markers and compared these cells at the proteomic level. We noticed that CD133+ Lin- CD45- population is more rare and express, at a higher level, mRNA for pluripotency markers Oct-4 and Nanog as well as the stromal-derived factor-1 (SDF-1) CXCR4 receptor that regulates trafficking of these cells, however both cells population did not significantly differ in the expression of proteins assigned to main biological processes.
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Affiliation(s)
- Kamila Bujko
- Laboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland
| | | | - Magdalena Kucia
- Laboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland
- Stem Cell Institute, James Graham Brown Cancer Center, University of Louisville, Louisville, Kentucky, USA
| | - Mariusz Z Ratajczak
- Laboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland
- Stem Cell Institute, James Graham Brown Cancer Center, University of Louisville, Louisville, Kentucky, USA
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14
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Bentounes NK, Le Hingrat Q, Planquette B, Darnige L, Khider L, Sanchez O, Smadja DM, Mauge L, Lê MP, Mirault T, Gendron N. [Human immunodeficiency virus and venous thromboembolism: Role of direct oral anticoagulants]. Rev Med Interne 2023; 44:181-189. [PMID: 36878744 DOI: 10.1016/j.revmed.2023.01.006] [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: 10/17/2022] [Revised: 12/16/2022] [Accepted: 01/08/2023] [Indexed: 03/07/2023]
Abstract
Nowadays, thanks to highly active antiretroviral therapy (HAART), human immunodeficiency virus (HIV) infection is transforming into a chronic disease. The life expectancy of people living with HIV (PWH) has increased, as well as their risk of developing several co-morbidities, in particular cardiovascular diseases. In addition, the incidence of venous thromboembolism (VTE) is increased in PWH with a 2 to 10 times higher incidence when compared to the general population. Over the last decade, direct oral anticoagulants (DOACs) have been widely used in the treatment and prevention of VTE and non-valvular atrial fibrillation. DOACs are characterized by a rapid onset of activity, a predictable response and a relatively wide therapeutic window. Nevertheless, drug interactions exist between HAART and DOACs, exposing PWH to a theoretically increased bleeding or thrombotic risk. DOACs are substrates of the transport protein P-glycoprotein and/or of isoforms of cytochromes P450 pathway, which can be affected by some antiretroviral drugs. Limited guidelines are available to assist physicians with the complexity of those drug-drug interactions. The aim of this paper is to provide an updated review on the evidence of the high risk of VTE in PWH and the place of DOAC therapy in this population.
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Affiliation(s)
- N K Bentounes
- Inserm, Innovative Therapies in Haemostasis, Université Paris Cité, 75006 Paris, France; Hematology Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP Centre Université Paris Cité, 20, rue Leblanc, 75015 Paris, France
| | - Q Le Hingrat
- Inserm, UMR 1137 IAME, Virology dDepartment, Université Paris Cité, Hôpital Bichat-Claude-Bernard, AP-HP, 75018 Paris, France
| | - B Planquette
- Inserm, Innovative Therapies in Haemostasis, Université Paris Cité, 75006 Paris, France; Respiratory Medicine Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP Centre Université Paris Cité, 75015 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France
| | - L Darnige
- Inserm, Innovative Therapies in Haemostasis, Université Paris Cité, 75006 Paris, France; Hematology Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP Centre Université Paris Cité, 20, rue Leblanc, 75015 Paris, France
| | - L Khider
- Vascular medicine department, AP-HP Centre Université Paris Cité, 75015 Paris, France
| | - O Sanchez
- Inserm, Innovative Therapies in Haemostasis, Université Paris Cité, 75006 Paris, France; Respiratory Medicine Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP Centre Université Paris Cité, 75015 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France
| | - D M Smadja
- Inserm, Innovative Therapies in Haemostasis, Université Paris Cité, 75006 Paris, France; Hematology Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP Centre Université Paris Cité, 20, rue Leblanc, 75015 Paris, France; F-CRIN INNOVTE, Saint-Étienne, France
| | - L Mauge
- PARCC Inserm U970, Hematology Department, Université Paris Cité, AP-HP Centre Université Paris Cité, 75015 Paris, France
| | - M P Lê
- Inserm, Laboratoire de Pharmacologie, Université Paris Cité, UMRS 1144, Hôpital Bichat Claude-Bernard, AP-HP, 75018 Paris, France
| | - T Mirault
- PARCC Inserm U970, Hematology Department, Université Paris Cité, AP-HP Centre Université Paris Cité, 75015 Paris, France; Inserm U970, Université Paris Cité, PARCC, Paris, France
| | - N Gendron
- Inserm, Innovative Therapies in Haemostasis, Université Paris Cité, 75006 Paris, France; Hematology Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP Centre Université Paris Cité, 20, rue Leblanc, 75015 Paris, France.
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15
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Tripathi H, Domingues A, Donahue R, Cras A, Guerin CL, Gao E, Levitan B, Ratajczak MZ, Smadja DM, Abdel-Latif A, Tarhuni WM. Combined Transplantation of Human MSCs and ECFCs Improves Cardiac Function and Decrease Cardiomyocyte Apoptosis After Acute Myocardial Infarction. Stem Cell Rev Rep 2023; 19:573-577. [PMID: 36271311 DOI: 10.1007/s12015-022-10468-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Ischemic heart disease, often caused by an acute myocardial infarction (AMI) is one of the leading causes of morbidity and mortality worldwide. Despite significant advances in medical and procedural therapies, millions of AMI patients progress to develop heart failure every year. METHODS Here, we examine the combination therapy of human mesenchymal stromal cells (MSCs) and endothelial colony-forming cells (ECFCs) to reduce the early ischemic damage (MSCs) and enhance angiogenesis (ECFCs) in a pre-clinical model of acute myocardial infarction. NOD/SCID mice were subjected to AMI followed by transplantation of MSCs and ECFCs either alone or in combination. Cardiomyocyte apoptosis and cardiac functional recovery were assessed in short- and long-term follow-up studies. RESULTS At 1 day after AMI, MSC- and ECFC-treated animals demonstrated significantly lower cardiomyocyte apoptosis compared to vehicle-treated animals. This phenomenon was associated with a significant reduction in infarct size, cardiac fibrosis, and improvement in functional cardiac recovery 4 weeks after AMI. CONCLUSIONS The use of ECFCs, MSCs, and the combination of both cell types reduce cardiomyocyte apoptosis, scar size, and adverse cardiac remodeling, compared to vehicle, in a pre-clinical model of AMI. These results support the use of this combined cell therapy approach in future human studies during the acute phase of ischemic cardiac injury.
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Affiliation(s)
- Himi Tripathi
- Gill Heart and Vascular Institute and Division of Cardiovascular Medicine, University of Kentucky, Lexington, KY, USA
| | - Alison Domingues
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA.,Université de Paris, INSERM, Innovative Therapies in Haemostasis, 75006, Paris, France
| | - Renee Donahue
- Gill Heart and Vascular Institute and Division of Cardiovascular Medicine, University of Kentucky, Lexington, KY, USA
| | - Audrey Cras
- Université de Paris, INSERM, Innovative Therapies in Haemostasis, 75006, Paris, France.,Cell Therapy Department, AP-HP, Hôpital Saint Louis, 75010, Paris, France
| | - Coralie L Guerin
- Université de Paris, INSERM, Innovative Therapies in Haemostasis, 75006, Paris, France.,Curie Institute, Paris, France
| | - Erhe Gao
- The Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Bryana Levitan
- Gill Heart and Vascular Institute and Division of Cardiovascular Medicine, University of Kentucky, Lexington, KY, USA
| | - Mariusz Z Ratajczak
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - David M Smadja
- Université de Paris, INSERM, Innovative Therapies in Haemostasis, 75006, Paris, France.,Hematology Department and Biosurgical Research Lab (Carpentier Foundation), AP-HP, Hôpital Européen Georges Pompidou, 75015, Paris, France
| | - Ahmed Abdel-Latif
- Gill Heart and Vascular Institute and Division of Cardiovascular Medicine, University of Kentucky, Lexington, KY, USA. .,Department of Internal Medicine, Division of Cardiology, University of Michigan, Ann Arbor, MI, USA. .,Division of Cardiovascular Medicine, University of Michigan and the Ann Arbor VA Medical Center, Ann Arbor, MI, USA.
| | - Wadea M Tarhuni
- Canadian Cardiac Research Center, Department of Internal Medicine, Division of Cardiology, University of Saskatchewan, Saskatoon, SK, Canada
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16
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Li A, Sasaki J, Inubushi T, Abe G, Nör J, Yamashiro T, Imazato S. Role of Heparan Sulfate in Vasculogenesis of Dental Pulp Stem Cells. J Dent Res 2023; 102:207-216. [PMID: 36281071 PMCID: PMC10767696 DOI: 10.1177/00220345221130682] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Dental pulp stem cells (DPSCs) can differentiate into vascular endothelial cells and display sprouting ability. During this process, DPSC responses to the extracellular microenvironment and cell-extracellular matrix interactions are critical in regulating their ultimate cell fate. Heparan sulfate (HS) glycosaminoglycan, a major component of extracellular matrix, plays important roles in various biological cell activities by interacting with growth factors and relative receptors. However, the regulatory function of HS on vasculogenesis of mesenchymal stem cells remains unclear. The objective of this study was to investigate the role of HS in endothelial differentiation and vasculogenesis of DPSCs. Our results show that an HS antagonist suppressed the proliferation and sprouting ability of DPSCs undergoing endothelial differentiation. Furthermore, expression of proangiogenic markers significantly declined with increasing dosages of the HS antagonist; in contrast, expression of stemness marker increased. Silencing of exostosin 1 (EXT1), a crucial glycosyltransferase for HS biosynthesis, in DPSCs using a short hairpin RNA significantly altered their gene expression profile. In addition, EXT1-silenced DPSCs expressed lower levels of endothelial differentiation markers and displayed a reduced vascular formation capacity compared with control DPSCs transduced with scrambled sequences. The sprouting ability of EXT1-silenced DPSCs was rescued by the addition of exogenous HS in vitro. Next, we subcutaneously transplanted biodegradable scaffolds seeded with EXT1-silenced or control DPSCs into immunodeficient mice. Lumen-like structures positive for human CD31 and von Willebrand factor were formed by green fluorescent protein-transduced DPSCs. Numbers of blood-containing vessels were significantly lower in scaffolds loaded with EXT1-silenced DPSCs than specimens implanted with control DPSCs. Collectively, our findings unveil the crucial role of HS on endothelial differentiation and vasculogenesis of DPSCs, opening new perspectives for the application of HS to tissue engineering and dental pulp regeneration.
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Affiliation(s)
- A. Li
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - J.I. Sasaki
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - T. Inubushi
- Department of Orthodontics and Dentofacial Orthopedics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - G.L. Abe
- Department of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - J.E. Nör
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - T. Yamashiro
- Department of Orthodontics and Dentofacial Orthopedics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S. Imazato
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Osaka, Japan
- Department of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry, Osaka, Japan
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17
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Détriché G, Gendron N, Philippe A, Gruest M, Billoir P, Rossi E, Guerin CL, Lokajczyk A, Brabant S, Prié D, Mirault T, Smadja DM. Gonadotropins as novel active partners in vascular diseases: Insight from angiogenic properties and thrombotic potential of endothelial colony-forming cells. J Thromb Haemost 2022; 20:230-237. [PMID: 34623025 DOI: 10.1111/jth.15549] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/06/2021] [Indexed: 01/25/2023]
Abstract
BACKGROUND The impact of estrogen and testosterone on atherosclerotic cardiovascular disease is well known, but the role of the gonadotropins follicle-stimulating hormone (FSH), luteinizing hormone (LH), and prolactin (PRL) to some extent remain less studied. OBJECTIVES To explore the angiogenic potential of gonadotropins on endothelial colony-forming cells (ECFCs). METHODS We examined the effects of various doses of gonadotropins on ECFCs obtained from cord blood by assessing colony number, proliferation, migration, and sprouting ability. Moreover, we studied thrombin generation in ECFCs exposed to gonadotropins by performing a thrombin generation assay. Finally, we determined the levels of circulating gonadotropins in 30 men, to exclude the effect of estrogen, with lower extremity arterial disease (LEAD), in comparison with age- and sex-matched controls. RESULTS Exposure to FSH, LH, or PRL resulted in an increase in ECFC migration but showed no effect on proliferation or ECFC commitment from cord blood mononuclear cells. Using a three-dimensional fibrin gel assay, we showed that ECFC sprouting was significantly enhanced by gonadotropins. Exposure to FSH also increased the thrombin generation of ECFCs exposed to FSH. Finally, FSH and LH levels in men with LEAD were higher than those in controls. CONCLUSION Gonadotropins increase ECFC-related angiogenesis and may be involved in thrombin generation in cardiovascular disease. Gonadotropins may act as biomarkers; moreover, we hypothesize that gonadotropin-blocking strategies may be a novel interesting therapeutic approach in atherosclerotic cardiovascular disease.
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Affiliation(s)
- Grégoire Détriché
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Biosurgical Research Lab (Carpentier Foundation), Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), Paris, France
| | - Nicolas Gendron
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Biosurgical Research Lab (Carpentier Foundation), Hematology Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), Paris, France
| | - Aurélien Philippe
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Biosurgical Research Lab (Carpentier Foundation), Hematology Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), Paris, France
| | - Maxime Gruest
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Biosurgical Research Lab (Carpentier Foundation), Hematology Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), Paris, France
| | - Paul Billoir
- Vascular Hemostasis Unit, UNIROUEN, INSERM U1096, Rouen University Hospital, Normandie Univ, Rouen, France
| | - Elisa Rossi
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
| | - Coralie L Guerin
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Cytometry Platform, Institut Curie, Paris, France
- Department of Infection and Immunity, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Anna Lokajczyk
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
| | - Séverine Brabant
- AP-HP, Department of Functional Explorations, Necker Enfants Malades Hospital, Paris-Centre University, Paris Cedex, France
| | - Dominique Prié
- AP-HP, Department of Functional Explorations, Necker Enfants Malades Hospital, Paris-Centre University, Paris Cedex, France
| | - Tristan Mirault
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Biosurgical Research Lab (Carpentier Foundation), Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), Paris, France
| | - David M Smadja
- INSERM, Innovative Therapies in Haemostasis, Université de Paris, Paris, France
- Biosurgical Research Lab (Carpentier Foundation), Hematology Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), Paris, France
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18
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Cyclosporine A and Tacrolimus Induce Functional Impairment and Inflammatory Reactions in Endothelial Progenitor Cells. Int J Mol Sci 2021; 22:ijms22189696. [PMID: 34575860 PMCID: PMC8472421 DOI: 10.3390/ijms22189696] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/29/2021] [Accepted: 09/03/2021] [Indexed: 12/12/2022] Open
Abstract
Immunosuppressants are a mandatory therapy for transplant patients to avoid rejection of the transplanted organ by the immune system. However, there are several known side effects, including alterations of the vasculature, which involve a higher occurrence of cardiovascular events. While the effects of the commonly applied immunosuppressive drugs cyclosporine A (CsA) and tacrolimus (Tac) on mature endothelial cells have been addressed in several studies, we focused our research on the unexplored effects of CsA and Tac on endothelial colony-forming cells (ECFCs), a subgroup of endothelial progenitor cells, which play an important role in vascular repair and angiogenesis. We hypothesized that CsA and Tac induce functional defects and activate an inflammatory cascade via NF-κB signaling in ECFCs. ECFCs were incubated with different doses (0.01 µM–10 µM) of CsA or Tac. ECFC function was determined using in vitro models. The expression of inflammatory cytokines and adhesion molecules was explored by quantitative real-time PCR and flow cytometry. NF-κB subunit modification was assessed by immunoblot and immunofluorescence. CsA and Tac significantly impaired ECFC function, including proliferation, migration, and tube formation. TNF-α, IL-6, VCAM, and ICAM mRNA expression, as well as PECAM and VCAM surface expression, were enhanced. Furthermore, CsA and Tac led to NF-κB p65 subunit phosphorylation and nuclear translocation. Pharmacological inhibition of NF-κB by parthenolide diminished CsA- and Tac-mediated proinflammatory effects. The data of functional impairment and activation of inflammatory signals provide new insight into mechanisms associated with CsA and Tac and cardiovascular risk in transplant patients.
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19
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Detriche G, Guerin CL, Gendron N, Mirault T, Smadja DM. Do Endothelial Colony-forming Cells Come From Bone Marrow or Vessels/VSELs? Stem Cell Rev Rep 2021; 17:1500-1502. [PMID: 33651335 DOI: 10.1007/s12015-021-10140-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Grégoire Detriche
- Innovative Therapies in Hemostasis, Université de Paris, INSERM, F-75006, Paris, France.,Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP- CUP), F-75015, Paris, France
| | - Coralie L Guerin
- Innovative Therapies in Hemostasis, Université de Paris, INSERM, F-75006, Paris, France.,Institut Curie, 75006, Paris, France
| | - Nicolas Gendron
- Innovative Therapies in Hemostasis, Université de Paris, INSERM, F-75006, Paris, France.,Hematology Department and Biosurgical Research Lab (Carpentier Foundation), Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), F-75015, Paris, France
| | - Tristan Mirault
- Vascular Medicine Department, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP- CUP), F-75015, Paris, France.,Université de Paris, PARCC, INSERM, F-75015, Paris, France
| | - David M Smadja
- Innovative Therapies in Hemostasis, Université de Paris, INSERM, F-75006, Paris, France. .,Hematology Department and Biosurgical Research Lab (Carpentier Foundation), Assistance Publique Hôpitaux de Paris, Centre-Université de Paris (APHP-CUP), F-75015, Paris, France.
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20
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He ZH, Chen Y, Chen P, Xie LH, Liang GB, Zhang HL, Peng HH. Cigarette smoke extract affects methylation status and attenuates Sca-1 expression of mouse endothelial progenitor cell in vitro. Tob Induc Dis 2021; 19:08. [PMID: 33542680 PMCID: PMC7842580 DOI: 10.18332/tid/131625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 11/22/2020] [Accepted: 12/12/2020] [Indexed: 01/28/2023] Open
Abstract
INTRODUCTION Endothelial dysfunction appears in many smoking-related diseases, it is also an important pathophysiological feature. Endothelial progenitor cells (EPCs) are precursors of endothelial cells and have a crucial effect on the repair and maintenance of endothelial integrity. Sca-1 is not only common in bone marrow-derived hematopoietic stem cells (HSCs), but it is also expressed in nonhematopoietic organs by tissue-resident stem and progenitor cells. The aim of this study is to investigate the impact of cigarette smoke extract (CSE) on the function of bone marrow-derived EPCs and the expression level of Sca-1 in EPCs, and also whether the methylation of Sca-1 is involved in EPC dysfunction. METHODS We measured EPC capacities including adhesion, secretion and proliferation, the concentration of endothelial nitric oxide synthase (eNOS) and apoptosis-inducing factor (AIF) in cell culture supernatant, and also Sca-1 expression and promoter methylation in EPCs induced by CSE. Decitabine (Dec) was applied to test whether it could alter the impact caused by CSE. RESULTS The adhesion, proliferation and secretion ability of EPCs can be induced to be decreased by CSE in vitro, accompanied by decreased concentrations of AIF and eNOS in cell culture supernatant and decreased Sca-1 expression in EPCs. In addition, Dec could partly attenuate the impact described above. There were no significant differences in the quantitative analysis of Sca-1 promoter methylation among different groups. CONCLUSIONS The decreased Sca-1 expression was related to EPC dysfunction induced by CSE. EPC dysfunction resulting from CSE may be related to methylation mechanism, but not the methylation of Sca-1 promoter.
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Affiliation(s)
- Zhi-Hui He
- Department of Intensive Care Unit, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yan Chen
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ping Chen
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Li-Hua Xie
- Department of Respiratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Gui-Bin Liang
- Department of Intensive Care Unit, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong-Liang Zhang
- Department of Emergency, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Huai-Huai Peng
- Department of Intensive Care Unit, The Second Xiangya Hospital, Central South University, Changsha, China
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21
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Meyer N, Brodowski L, Richter K, von Kaisenberg CS, Schröder-Heurich B, von Versen-Höynck F. Pravastatin Promotes Endothelial Colony-Forming Cell Function, Angiogenic Signaling and Protein Expression In Vitro. J Clin Med 2021; 10:E183. [PMID: 33419165 PMCID: PMC7825508 DOI: 10.3390/jcm10020183] [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: 11/06/2020] [Revised: 12/28/2020] [Accepted: 12/31/2020] [Indexed: 12/15/2022] Open
Abstract
Endothelial dysfunction is a primary feature of several cardiovascular diseases. Endothelial colony-forming cells (ECFCs) represent a highly proliferative subtype of endothelial progenitor cells (EPCs), which are involved in neovascularization and vascular repair. Statins are known to improve the outcome of cardiovascular diseases via pleiotropic effects. We hypothesized that treatment with the 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase inhibitor pravastatin increases ECFCs' functional capacities and regulates the expression of proteins which modulate endothelial health in a favourable manner. Umbilical cord blood derived ECFCs were incubated with different concentrations of pravastatin with or without mevalonate, a key intermediate in cholesterol synthesis. Functional capacities such as migration, proliferation and tube formation were addressed in corresponding in vitro assays. mRNA and protein levels or phosphorylation of protein kinase B (AKT), endothelial nitric oxide synthase (eNOS), heme oxygenase-1 (HO-1), vascular endothelial growth factor A (VEGF-A), placental growth factor (PlGF), soluble fms-like tyrosine kinase-1 (sFlt-1) and endoglin (Eng) were analyzed by real time PCR or immunoblot, respectively. Proliferation, migration and tube formation of ECFCs were enhanced after pravastatin treatment, and AKT- and eNOS-phosphorylation were augmented. Further, expression levels of HO-1, VEGF-A and PlGF were increased, whereas expression levels of sFlt-1 and Eng were decreased. Pravastatin induced effects were reversible by the addition of mevalonate. Pravastatin induces beneficial effects on ECFC function, angiogenic signaling and protein expression. These effects may contribute to understand the pleiotropic function of statins as well as to provide a promising option to improve ECFCs' condition in cell therapy in order to ameliorate endothelial dysfunction.
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Affiliation(s)
- Nadia Meyer
- Gynecology Research Unit, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany; (N.M.); (L.B.); (K.R.); (B.S.-H.)
| | - Lars Brodowski
- Gynecology Research Unit, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany; (N.M.); (L.B.); (K.R.); (B.S.-H.)
- Department of Obstetrics and Gynecology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany;
| | - Katja Richter
- Gynecology Research Unit, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany; (N.M.); (L.B.); (K.R.); (B.S.-H.)
| | - Constantin S. von Kaisenberg
- Department of Obstetrics and Gynecology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany;
| | - Bianca Schröder-Heurich
- Gynecology Research Unit, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany; (N.M.); (L.B.); (K.R.); (B.S.-H.)
| | - Frauke von Versen-Höynck
- Gynecology Research Unit, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany; (N.M.); (L.B.); (K.R.); (B.S.-H.)
- Department of Obstetrics and Gynecology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany;
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22
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Blandinières A, Hong X, Philippe A, Bièche I, Vacher S, Rossi E, Detriche G, Gendron N, Gaussem P, Guerin CL, Melero-Martin JM, Smadja DM. Interleukin-8 Receptors CXCR1 and CXCR2 Are Not Expressed by Endothelial Colony-forming Cells. Stem Cell Rev Rep 2020; 17:628-638. [PMID: 33185837 DOI: 10.1007/s12015-020-10081-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2020] [Indexed: 11/24/2022]
Abstract
Endothelial colony-forming cells (ECFCs) are human vasculogenic cells described as potential cell therapy product and good candidates for being a vascular liquid biopsy. Since interleukin-8 (IL-8) is a main actor in senescence, its ability to interact with ECFCs has been explored. However, expression of CXCR1 and CXCR2, the two cellular receptors for IL-8, by ECFCs remain controversial as several teams published contradictory reports. Using complementary technical approaches, we have investigated the presence of these receptors on ECFCs isolated from cord blood. First, CXCR1 and CXCR2 were not detected on several clones of cord blood- endothelial colony-forming cell using different antibodies available, in contrast to well-known positive cells. We then compared the RT-PCR primers used in different papers to search for the presence of CXCR1 and CXCR2 mRNA and found that several primer pairs used could lead to non-specific DNA amplification. Last, we confirmed those results by RNA sequencing. CXCR1 and CXCR2 were not detected in ECFCs in contrary to human-induced pluripotent stem cell-derived endothelial cells (h-iECs). In conclusion, using three different approaches, we confirmed that CXCR1 and CXCR2 were not expressed at mRNA or protein level by ECFCs. Thus, IL-8 secretion by ECFCs, its effects in angiogenesis and their involvement in senescent process need to be reanalyzed according to this absence of CXCR-1 and - 2 in ECFCs.Graphical Abstract.
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Affiliation(s)
- Adeline Blandinières
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France.,Service d'Hématologie et Laboratoire de Recherches Biochirugicales (Fondation Carpentier), AH-HP, Georges Pompidou European Hospital, F-75015, Paris, France
| | - Xuechong Hong
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, MA, USA.,Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Aurélien Philippe
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France.,Service d'Hématologie et Laboratoire de Recherches Biochirugicales (Fondation Carpentier), AH-HP, Georges Pompidou European Hospital, F-75015, Paris, France
| | - Ivan Bièche
- Department of Genetics, Université de Paris and Pharmacogenomics Unit, Institut Curie, Paris, France
| | - Sophie Vacher
- Department of Genetics, Université de Paris and Pharmacogenomics Unit, Institut Curie, Paris, France
| | - Elisa Rossi
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France
| | - Grégoire Detriche
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France
| | - Nicolas Gendron
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France.,Service d'Hématologie et Laboratoire de Recherches Biochirugicales (Fondation Carpentier), AH-HP, Georges Pompidou European Hospital, F-75015, Paris, France
| | - Pascale Gaussem
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France.,Service d'Hématologie, AH-HP, Georges Pompidou European Hospital, F-75015, Paris, France
| | - Coralie L Guerin
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France.,Plateforme de cytométrie, Institut Curie, F-75006, Paris, France
| | - Juan M Melero-Martin
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, MA, USA.,Department of Surgery, Harvard Medical School, Boston, MA, USA.,Harvard Stem Cell Institute, Cambridge, MA, USA
| | - David M Smadja
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, F-75006 , Paris, France. .,Service d'Hématologie et Laboratoire de Recherches Biochirugicales (Fondation Carpentier), AH-HP, Georges Pompidou European Hospital, F-75015, Paris, France.
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23
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Therapeutic Potential of Endothelial Colony-Forming Cells in Ischemic Disease: Strategies to Improve their Regenerative Efficacy. Int J Mol Sci 2020; 21:ijms21197406. [PMID: 33036489 PMCID: PMC7582994 DOI: 10.3390/ijms21197406] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/02/2020] [Accepted: 10/02/2020] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular disease (CVD) comprises a range of major clinical cardiac and circulatory diseases, which produce immense health and economic burdens worldwide. Currently, vascular regenerative surgery represents the most employed therapeutic option to treat ischemic disorders, even though not all the patients are amenable to surgical revascularization. Therefore, more efficient therapeutic approaches are urgently required to promote neovascularization. Therapeutic angiogenesis represents an emerging strategy that aims at reconstructing the damaged vascular network by stimulating local angiogenesis and/or promoting de novo blood vessel formation according to a process known as vasculogenesis. In turn, circulating endothelial colony-forming cells (ECFCs) represent truly endothelial precursors, which display high clonogenic potential and have the documented ability to originate de novo blood vessels in vivo. Therefore, ECFCs are regarded as the most promising cellular candidate to promote therapeutic angiogenesis in patients suffering from CVD. The current briefly summarizes the available information about the origin and characterization of ECFCs and then widely illustrates the preclinical studies that assessed their regenerative efficacy in a variety of ischemic disorders, including acute myocardial infarction, peripheral artery disease, ischemic brain disease, and retinopathy. Then, we describe the most common pharmacological, genetic, and epigenetic strategies employed to enhance the vasoreparative potential of autologous ECFCs by manipulating crucial pro-angiogenic signaling pathways, e.g., extracellular-signal regulated kinase/Akt, phosphoinositide 3-kinase, and Ca2+ signaling. We conclude by discussing the possibility of targeting circulating ECFCs to rescue their dysfunctional phenotype and promote neovascularization in the presence of CVD.
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