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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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2
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Gao R, Lin P, Fang Z, Yang W, Gao W, Wang F, Pan X, Yu W. Cell-derived biomimetic nanoparticles for the targeted therapy of ALI/ARDS. Drug Deliv Transl Res 2024; 14:1432-1457. [PMID: 38117405 DOI: 10.1007/s13346-023-01494-6] [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: 12/06/2023] [Indexed: 12/21/2023]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are common clinical critical diseases with high morbidity and mortality. Especially since the COVID-19 outbreak, the mortality rates of critically ill patients with ARDS can be as high as 60%. Therefore, this problem has become a matter of concern to respiratory critical care. To date, the main clinical measures for ALI/ARDS are mechanical ventilation and drug therapy. Although ventilation treatment reduces mortality, it increases the risk of hyperxemia, and drug treatment lacks safe and effective delivery methods. Therefore, novel therapeutic strategies for ALI/ARDS are urgently needed. Developments in nanotechnology have allowed the construction of a safe, efficient, precise, and controllable drug delivery system. However, problems still encounter in the treatment of ALI/ARDS, such as the toxicity, poor targeting ability, and immunogenicity of nanomaterials. Cell-derived biomimetic nanodelivery drug systems have the advantages of low toxicity, long circulation, high targeting, and high bioavailability and show great therapeutic promises for ALI/ARDS owing to their acquired cellular biological features and some functions. This paper reviews ALI/ARDS treatments based on cell membrane biomimetic technology and extracellular vesicle biomimetic technology, aiming to achieve a significant breakthrough in ALI/ARDS treatments.
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Affiliation(s)
- Rui Gao
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China
| | - Peihong Lin
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China
| | - Zhengyu Fang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China
| | - Wenjing Yang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China
| | - Wenyan Gao
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, 310013, China
| | - Fangqian Wang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China
| | - Xuwang Pan
- Department of Pharmaceutical Preparation, Affiliated Hangzhou Xixi Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, China.
| | - Wenying Yu
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 310013, China.
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, 310013, China.
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Su Y, Lucas R, Fulton DJ, Verin AD. Mechanisms of pulmonary endothelial barrier dysfunction in acute lung injury and acute respiratory distress syndrome. CHINESE MEDICAL JOURNAL PULMONARY AND CRITICAL CARE MEDICINE 2024; 2:80-87. [PMID: 39006829 PMCID: PMC11242916 DOI: 10.1016/j.pccm.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Endothelial cells (ECs) form a semi-permeable barrier between the interior space of blood vessels and the underlying tissues. Pulmonary endothelial barrier integrity is maintained through coordinated cellular processes involving receptors, signaling molecules, junctional complexes, and protein-regulated cytoskeletal reorganization. In acute lung injury (ALI) or its more severe form acute respiratory distress syndrome (ARDS), the loss of endothelial barrier integrity secondary to endothelial dysfunction caused by severe pulmonary inflammation and/or infection leads to pulmonary edema and hypoxemia. Pro-inflammatory agonists such as histamine, thrombin, bradykinin, interleukin 1β, tumor necrosis factor α, vascular endothelial growth factor, angiopoietin-2, and platelet-activating factor, as well as bacterial toxins and reactive oxygen species, cause dynamic changes in cytoskeletal structure, adherens junction disorganization, and detachment of vascular endothelial cadherin (VE-cadherin) from the actin cytoskeleton, leading to an increase in endothelial permeability. Endothelial interactions with leukocytes, platelets, and coagulation enhance the inflammatory response. Moreover, inflammatory infiltration and the associated generation of pro-inflammatory cytokines during infection cause EC death, resulting in further compromise of the structural integrity of lung endothelial barrier. Despite the use of potent antibiotics and aggressive intensive care support, the mortality of ALI is still high, because the mechanisms of pulmonary EC barrier disruption are not fully understood. In this review, we summarized recent advances in the studies of endothelial cytoskeletal reorganization, inter-endothelial junctions, endothelial inflammation, EC death, and endothelial repair in ALI and ARDS, intending to shed some light on the potential diagnostic and therapeutic targets in the clinical management of the disease.
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Affiliation(s)
- Yunchao Su
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Research Service, Charlie Norwood Veterans Affairs Medical Center, Augusta, GA 30912, USA
| | - Rudolf Lucas
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - David J.R. Fulton
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Alexander D. Verin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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Dhindsa DS, Desai SR, Jin Q, Sandesara PB, Mehta A, Liu C, Tahhan AS, Nayak A, Ejaz K, Hooda A, Moazzami K, Islam SJ, Rogers SC, Almuwaqqat Z, Mokhtari A, Hesaroieh I, Ko YA, Sperling LS, Waller EK, Quyyumi AA. Circulating progenitor cells and outcomes in patients with coronary artery disease. Int J Cardiol 2023; 373:7-16. [PMID: 36460208 PMCID: PMC9840693 DOI: 10.1016/j.ijcard.2022.11.047] [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: 07/30/2022] [Revised: 11/10/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Low quantities of circulating progenitor cells (CPCs), specifically CD34+ populations, reflect impairment of intrinsic regenerative capacity. This study investigates the relationship between subsets of CPCs and adverse outcomes. METHODS 1366 individuals undergoing angiography for evaluation of coronary artery disease (CAD) were enrolled into the Emory Cardiovascular Biobank. Flow cytometry identified CPCs as CD45med blood mononuclear cells expressing the CD34 epitope, with further enumeration of hematopoietic CPCs as CD133+/CXCR4+ cells and endothelial CPCs as vascular endothelial growth factor receptor-2 (VEGFR2+) cells. Adjusted Cox or Fine and Gray's sub-distribution hazard regression models analyzed the relationship between CPCs and 1) all-cause death and 2) a composite of cardiovascular death and non-fatal myocardial infarction (MI). RESULTS Over a median 3.1-year follow-up period (IQR 1.3-4.9), there were 221 (16.6%) all-cause deaths and 172 (12.9%) cardiovascular deaths/MIs. Hematopoietic CPCs were highly correlated, and the CD34+/CXCR4+ subset was the best independent predictor. Lower counts (≤median) of CD34+/CXCR4+ and CD34+/VEGFR2+ cells independently predicted all-cause mortality (HR 1.46 [95% CI 1.06-2.01], p = 0.02 and 1.59 [95% CI 1.15-2.18], p = 0.004) and cardiovascular death/MI (HR 1.50 [95% CI 1.04-2.17], p = 0.03 and 1.47 [95% CI 1.01-2.03], p = 0.04). A combination of low CD34+/CXCR4+ and CD34+/VEGFR2+ CPCs predicted all-cause death (HR 2.1, 95% CI 1.4-3.0; p = 0.0002) and cardiovascular death/MI (HR 2.0, 95% CI 1.3-3.2; p = 0.002) compared to those with both lineages above the cut-offs. CONCLUSIONS Lower levels of hematopoietic and endothelial CPCs indicate diminished endogenous regenerative capacity and independently correlate with greater mortality and cardiovascular risk in patients with CAD.
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Affiliation(s)
- Devinder S Dhindsa
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Shivang R Desai
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Qingchun Jin
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Pratik B Sandesara
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Anurag Mehta
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Chang Liu
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia; Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Ayman S Tahhan
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Aditi Nayak
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Kiran Ejaz
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Ananya Hooda
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Kasra Moazzami
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Shabatun J Islam
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Steven C Rogers
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Zakaria Almuwaqqat
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Ali Mokhtari
- Department of Hematology and Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia
| | - Iraj Hesaroieh
- Department of Hematology and Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia
| | - Yi-An Ko
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia; Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Laurence S Sperling
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Edmund K Waller
- Department of Hematology and Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia
| | - Arshed A Quyyumi
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia.
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Shi X, Seidle KA, Simms KJ, Dong F, Chilian WM, Zhang P. Endothelial progenitor cells in the host defense response. Pharmacol Ther 2023; 241:108315. [PMID: 36436689 PMCID: PMC9944665 DOI: 10.1016/j.pharmthera.2022.108315] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022]
Abstract
Extensive injury of endothelial cells in blood vasculature, especially in the microcirculatory system, frequently occurs in hosts suffering from sepsis and the accompanied systemic inflammation. Pathological factors, including toxic components derived from invading microbes, oxidative stress associated with tissue ischemia/reperfusion, and vessel active mediators generated during the inflammatory response, are known to play important roles in mediating endothelial injury. Collapse of microcirculation and tissue edema developed from the failure of endothelial barrier function in vital organ systems, including the lung, brain, and kidney, are detrimental, which often predict fatal outcomes. The host body possesses a substantial capacity for maintaining vascular homeostasis and repairing endothelial damage. Bone marrow and vascular wall niches house endothelial progenitor cells (EPCs). In response to septic challenges, EPCs in their niche environment are rapidly activated for proliferation and angiogenic differentiation. In the meantime, release of EPCs from their niches into the blood stream and homing of these vascular precursors to tissue sites of injury are markedly increased. The recruited EPCs actively participate in host defense against endothelial injury and repair of damage in blood vasculature via direct differentiation into endothelial cells for re-endothelialization as well as production of vessel active mediators to exert paracrine and autocrine effects on angiogenesis/vasculogenesis. In recent years, investigations on significance of EPCs in host defense and molecular signaling mechanisms underlying regulation of the EPC response have achieved substantial progress, which promotes exploration of vascular precursor cell-based approaches for effective prevention and treatment of sepsis-induced vascular injury as well as vital organ system failure.
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Affiliation(s)
- Xin Shi
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Kelly A Seidle
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Kevin J Simms
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Feng Dong
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - William M Chilian
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Ping Zhang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America.
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Abstract
Viral respiratory diseases constitute the most common reasons for hospitalization with more than half of all acute illnesses worldwide. Progressive respiratory failure with pronounced diffuse alveolar damage has been identified as the primary cause of death in COVID-19. COVID-19 pneumonia shares common histopathological hallmarks with influenza (H1N1)-related ARDS, like diffuse alveolar damage (DAD) with edema, hemorrhage, and intra-alveolar fibrin deposition. The lungs with COVID-19 pneumonia revealed perivascular inflammation, an endothelial injury, microangiopathy, and an aberrant blood vessel neoformation by intussusceptive angiogenesis. While this pronounced angiocentric inflammation is likely be found - to varying degrees - in numerous other organs, e.g., the heart, COVID-19 is hypothesized to be not just a pulmonary, but rather a systemic "vascular disease."
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Endothelial Biomarkers Are Associated With Indirect Lung Injury in Sepsis-Associated Pediatric Acute Respiratory Distress Syndrome. Crit Care Explor 2020; 2:e0295. [PMID: 33299985 PMCID: PMC7721219 DOI: 10.1097/cce.0000000000000295] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Supplemental Digital Content is available in the text. Objectives: Acute respiratory distress syndrome occurring in the setting of direct versus indirect lung injury may reflect different pathobiologies amenable to different treatment strategies. We sought to test whether a panel of plasma biomarkers differed between children with sepsis-associated direct versus indirect acute respiratory distress syndrome. We hypothesized that a biomarker profile indicative of endothelial activation would be associated with indirect acute respiratory distress syndrome. Design: Observational cohort. Setting: Academic PICU. Subjects: Patients less than 18 years old with sepsis-associated direct (pneumonia, n = 52) or indirect (extrapulmonary sepsis, n = 46) acute respiratory distress syndrome. Interventions: None. Measurements and Main Results: Of 58 biomarkers examined, 33 differed by acute respiratory distress syndrome subtype. We used classification and regression tree methodology to examine associations between clinical and biochemical markers and acute respiratory distress syndrome subtype. The classification and regression tree model using only clinical variables (age, sex, race, oncologic comorbidity, and Pediatric Risk of Mortality-III score) performed worse than the classification and regression tree model using five clinical variables and 58 biomarkers. The best classification and regression tree model used only four endothelial biomarkers, including elevated angiopoietin-2/angiopoietin-1 ratio, vascular cell-adhesion molecule, and von Willebrand factor, to identify indirect acute respiratory distress syndrome. Test characteristics were 89% (80–97%) sensitivity, 80% (69–92%) specificity, positive predictive value 84% (74–93%), and negative predictive value 86% (76–96%). Conclusions: Indirect lung injury in children with acute respiratory distress syndrome is characterized by a biomarker profile indicative of endothelial activation, excess inflammation, and worse outcomes. A model using four biomarkers has the potential to be useful for more precisely identifying patients with acute respiratory distress syndrome whose pathobiology may respond to endothelial-targeted therapies in future trials.
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Mechanisms of Endothelial Regeneration and Vascular Repair and Their Application to Regenerative Medicine. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 191:52-65. [PMID: 33069720 PMCID: PMC7560161 DOI: 10.1016/j.ajpath.2020.10.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/01/2020] [Accepted: 10/06/2020] [Indexed: 12/14/2022]
Abstract
Endothelial barrier integrity is required for maintaining vascular homeostasis and fluid balance between the circulation and surrounding tissues and for preventing the development of vascular disease. Despite comprehensive understanding of the molecular mechanisms and signaling pathways that mediate endothelial injury, the regulatory mechanisms responsible for endothelial regeneration and vascular repair are incompletely understood and constitute an emerging area of research. Endogenous and exogenous reparative mechanisms serve to reverse vascular damage and restore endothelial barrier function through regeneration of a functional endothelium and re-engagement of endothelial junctions. In this review, mechanisms that contribute to endothelial regeneration and vascular repair are described. Targeting these mechanisms has the potential to improve outcome in diseases that are characterized by vascular injury, such as atherosclerosis, restenosis, peripheral vascular disease, sepsis, and acute respiratory distress syndrome. Future studies to further improve current understanding of the mechanisms that control endothelial regeneration and vascular repair are also highlighted.
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Cadiz L, Jonz MG. A comparative perspective on lung and gill regeneration. ACTA ACUST UNITED AC 2020; 223:223/19/jeb226076. [PMID: 33037099 DOI: 10.1242/jeb.226076] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The ability to continuously grow and regenerate the gills throughout life is a remarkable property of fish and amphibians. Considering that gill regeneration was first described over one century ago, it is surprising that the underlying mechanisms of cell and tissue replacement in the gills remain poorly understood. By contrast, the mammalian lung is a largely quiescent organ in adults but is capable of facultative regeneration following injury. In the course of the past decade, it has been recognized that lungs contain a population of stem or progenitor cells with an extensive ability to restore tissue; however, despite recent advances in regenerative biology of the lung, the signaling pathways that underlie regeneration are poorly understood. In this Review, we discuss the common evolutionary and embryological origins shared by gills and mammalian lungs. These are evident in homologies in tissue structure, cell populations, cellular function and genetic pathways. An integration of the literature on gill and lung regeneration in vertebrates is presented using a comparative approach in order to outline the challenges that remain in these areas, and to highlight the importance of using aquatic vertebrates as model organisms. The study of gill regeneration in fish and amphibians, which have a high regenerative potential and for which genetic tools are widely available, represents a unique opportunity to uncover common signaling mechanisms that may be important for regeneration of respiratory organs in all vertebrates. This may lead to new advances in tissue repair following lung disease.
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Affiliation(s)
- Laura Cadiz
- Department of Biology, University of Ottawa, 30 Marie Curie Pvt., Ottawa, ON, Canada, K1N 6N5
| | - Michael G Jonz
- Department of Biology, University of Ottawa, 30 Marie Curie Pvt., Ottawa, ON, Canada, K1N 6N5
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Patry C, Doniga T, Lenz F, Viergutz T, Weiss C, Tönshoff B, Kalenka A, Yard B, Krebs J, Schaible T, Beck G, Rafat N. Increased mobilization of mesenchymal stem cells in patients with acute respiratory distress syndrome undergoing extracorporeal membrane oxygenation. PLoS One 2020; 15:e0227460. [PMID: 31986159 PMCID: PMC6984734 DOI: 10.1371/journal.pone.0227460] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 12/18/2019] [Indexed: 01/31/2023] Open
Abstract
Background The acute respiratory distress syndrome (ARDS) is characterized by pulmonary epithelial and endothelial barrier dysfunction and injury. In severe forms of ARDS, extracorporeal membrane oxygenation (ECMO) is often the last option for life support. Endothelial progenitor (EPC) and mesenchymal stem cells (MSC) can regenerate damaged endothelium and thereby improve pulmonary endothelial dysfunction. However, we still lack sufficient knowledge about how ECMO might affect EPC- and MSC-mediated regenerative pathways in ARDS. Therefore, we investigated if ECMO impacts EPC and MSC numbers in ARDS patients. Methods Peripheral blood mononuclear cells from ARDS patients undergoing ECMO (n = 16) and without ECMO support (n = 12) and from healthy volunteers (n = 16) were isolated. The number and presence of circulating EPC and MSC was detected by flow cytometry. Serum concentrations of vascular endothelial growth factor (VEGF) and angiopoietin 2 (Ang2) were determined. Results In the ECMO group, MSC subpopulations were higher by 71% compared to the non-ECMO group. Numbers of circulating EPC were not significantly altered. During ECMO, VEGF and Ang2 serum levels remained unchanged compared to the non-ECMO group (p = 0.16), but Ang2 serum levels in non-survivors of ARDS were significantly increased by 100% (p = 0.02) compared to survivors. Conclusions ECMO support in ARDS is specifically associated with an increased number of circulating MSC, most likely due to enhanced mobilization, but not with a higher numbers of EPC or serum concentrations of VEGF and Ang2.
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Affiliation(s)
- Christian Patry
- Department of Pediatrics I, University Children’s Hospital Heidelberg, University of Heidelberg, Heidelberg, Germany
| | - Thalia Doniga
- Department of Neonatology, University Children’s Hospital Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Franziska Lenz
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Tim Viergutz
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Christel Weiss
- Department of Medical Statistics and Biomathematics, Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children’s Hospital Heidelberg, University of Heidelberg, Heidelberg, Germany
| | - Armin Kalenka
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
- Department of Anaesthesiology and Intensive Care Medicine, Hospital Bergstraße, Heppenheim, Germany
| | - Benito Yard
- Department of Medicine V, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Jörg Krebs
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Thomas Schaible
- Department of Neonatology, University Children’s Hospital Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Grietje Beck
- Department of Anaesthesiology and Intensive Care Medicine, Dr. Horst-Schmidt Clinic, Wiesbaden, Germany
| | - Neysan Rafat
- Department of Pediatrics I, University Children’s Hospital Heidelberg, University of Heidelberg, Heidelberg, Germany
- Department of Neonatology, University Children’s Hospital Mannheim, University of Heidelberg, Heidelberg, Germany
- Department of Pharmaceutical Sciences, Bahá'í Institute of Higher Education (BIHE), Teheran, Iran
- * E-mail:
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11
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Rommel MGE, Milde C, Eberle R, Schulze H, Modlich U. Endothelial-platelet interactions in influenza-induced pneumonia: A potential therapeutic target. Anat Histol Embryol 2019; 49:606-619. [PMID: 31793053 DOI: 10.1111/ahe.12521] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/07/2019] [Accepted: 11/08/2019] [Indexed: 12/18/2022]
Abstract
Every year, influenza viruses spread around the world, infecting the respiratory systems of countless humans and animals, causing illness and even death. Severe influenza infection is associated with pulmonary epithelial damage and endothelial dysfunction leading to acute lung injury (ALI). There is evidence that an aggressive cytokine storm and cell damage in lung capillaries as well as endothelial/platelet interactions contribute to vascular leakage, pro-thrombotic milieu and infiltration of immune effector cells. To date, treatments for ALI caused by influenza are limited to antiviral drugs, active ventilation or further symptomatic treatments. In this review, we summarize the mechanisms of influenza-mediated pathogenesis, permissive animal models and histopathological changes of lung tissue in both mice and men and compare it with histological and electron microscopic data from our own group. We highlight the molecular and cellular interactions between pulmonary endothelium and platelets in homeostasis and influenza-induced pathogenesis. Finally, we discuss novel therapeutic targets on platelets/endothelial interaction to reduce or resolve ALI.
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Affiliation(s)
- Marcel G E Rommel
- Research Group for Gene Modification in Stem Cells, Division of Veterinary Medicine, Paul-Ehrlich-Institut, Langen, Germany
| | - Christian Milde
- Research Group for Gene Modification in Stem Cells, Division of Veterinary Medicine, Paul-Ehrlich-Institut, Langen, Germany
| | - Regina Eberle
- Department of Morphology, Division of Immunology, Paul-Ehrlich-Institut, Langen, Germany
| | - Harald Schulze
- Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany
| | - Ute Modlich
- Research Group for Gene Modification in Stem Cells, Division of Veterinary Medicine, Paul-Ehrlich-Institut, Langen, Germany
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Intravenous delivery of granulocyte-macrophage colony stimulating factor impairs survival in lipopolysaccharide-induced sepsis. PLoS One 2019; 14:e0218602. [PMID: 31220157 PMCID: PMC6586330 DOI: 10.1371/journal.pone.0218602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 06/05/2019] [Indexed: 01/11/2023] Open
Abstract
Background Cell-based therapies with bone marrow-derived progenitor cells (BMDPC) lead to an improved clinical outcome in animal sepsis models. In the present study we evaluated the ability of granulocyte macrophage-colony stimulating factor (GM-CSF) to mobilize BMDPC in a lipopolysaccharide (LPS)-induced sepsis model and thereby its potential as a novel treatment strategy. Methods Male Wistar rats received LPS (25μg/kg/h for 4 days) intravenously and were subsequently treated with GM-CSF 12.5μg/kg (0h,24h,48h,72h). As control groups, rats were infused with sodium chloride or GM-CSF only. Clinical and laboratory parameters, proinflammatory plasma cytokines as well as BMDPC counts were analyzed. Cytokine release by isolated peripheral blood mononuclear cells from rat spleen upon incubation with LPS, GM-CSF and a combination of both were investigated in vitro. Results In vivo, rats receiving both LPS and GM-CSF, showed a reduced weight loss and increased mobilization of BMDPC. At the same time, this regime resulted in an increased release of proinflammatory cytokines (IL-6, IL-8) and a significantly increased mortality. In vitro, the combination of LPS and GM-CSF showed a significantly increased IL-6 release upon incubation compared to incubation with LPS or GM-CSF alone. Conclusions GM-CSF did not have a beneficial effect on the clinical course in our LPS-induced sepsis model. It synergistically promoted inflammation with LPS and probably thereby impaired survival.
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Wu X, Liu Z, Hu L, Gu W, Zhu L. Exosomes derived from endothelial progenitor cells ameliorate acute lung injury by transferring miR-126. Exp Cell Res 2018; 370:13-23. [DOI: 10.1016/j.yexcr.2018.06.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 06/03/2018] [Accepted: 06/04/2018] [Indexed: 12/20/2022]
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14
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Patry C, Stamm D, Betzen C, Tönshoff B, Yard BA, Beck GC, Rafat N. CXCR-4 expression by circulating endothelial progenitor cells and SDF-1 serum levels are elevated in septic patients. JOURNAL OF INFLAMMATION-LONDON 2018; 15:10. [PMID: 29796010 PMCID: PMC5956812 DOI: 10.1186/s12950-018-0186-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 05/07/2018] [Indexed: 12/26/2022]
Abstract
Background Endothelial progenitor cell (EPC) numbers are increased in septic patients and correlate with survival. In this study, we investigated, whether surface expression of chemokine receptors and other receptors important for EPC homing is upregulated by EPC from septic patients and if this is associated with clinical outcome. Methods Peripheral blood mononuclear cells from septic patients (n = 30), ICU control patients (n = 11) and healthy volunteers (n = 15) were isolated by Ficoll density gradient centrifugation. FACS-analysis was used to measure the expression of the CXC motif chemokine receptors (CXCR)-2 and − 4, the receptor for advanced glycation endproducts (RAGE) and the stem cell factor receptor c-Kit. Disease severity was assessed via the Simplified Acute Physiology Score (SAPS) II. The serum concentrations of vascular endothelial growth factor (VEGF), stromal cell-derived factor (SDF)-1α and angiopoietin (Ang)-2 were determined with Enzyme linked Immunosorbent Assays. Results EPC from septic patients expressed significantly more CXCR-4, c-Kit and RAGE compared to controls and were associated with survival-probability. Significantly higher serum concentrations of VEGF, SDF-1α and Ang-2 were found in septic patients. SDF-1α showed a significant association with survival. Conclusions Our data suggest that SDF-1α and CXCR-4 signaling could play a crucial role in EPC homing in the course of sepsis. Electronic supplementary material The online version of this article (10.1186/s12950-018-0186-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christian Patry
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany.,2Institute of Physiology and Pathophysiology, Division of Cardiovascular Physiology, University of Heidelberg, Im Neuenheimer Feld 326, 69120 Heidelberg, Germany
| | - Daniela Stamm
- 3Department of Anaesthesiology and Critical Care Medicine, University Medical Center Mannheim, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Christian Betzen
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Burkhard Tönshoff
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Benito A Yard
- 4Department of Medicine V, University Medical Centre Mannheim, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Grietje Ch Beck
- Department of Anaesthesiology and Critical Care Medicine, HELIOS Dr. Horst Schmidt Kliniken, Wiesbaden, Ludwig-Erhard-Straße 100, 65199 Wiesbaden, Germany
| | - Neysan Rafat
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany.,6Department of Neonatology, University Children's Hospital Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany.,Department of Pharmaceutical Sciences, Bahá'í Institute of Higher Education (BIHE), Teheran, Iran
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15
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VCAM-1 expression is upregulated by CD34+/CD133+-stem cells derived from septic patients. PLoS One 2018; 13:e0195064. [PMID: 29601599 PMCID: PMC5877884 DOI: 10.1371/journal.pone.0195064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 03/15/2018] [Indexed: 12/29/2022] Open
Abstract
CD34+/CD133+- cells are a bone marrow derived stem cell population, which presumably contain vascular progenitor cells and are associated with improved vascular repair. In this study, we investigated whether the adhesion molecules ICAM-1 (intercellular adhesion molecule-1), VCAM-1 (vascular adhesion molecule-1), E-selectin und L-selectin, which are involved in homing of vascular stem cells, are upregulated by CD34+/CD133+-stem cells from septic patients and would be associated with improved clinical outcome. Peripheral blood mononuclear cells from intensive care unit (ICU) patients with (n = 30) and without sepsis (n = 10), and healthy volunteers (n = 15) were isolated using Ficoll density gradient centrifugation. The expression of VCAM-1, ICAM-1, E-selectin and L-selectin was detected on CD34+/CD133+-stem cells by flow cytometry. The severity of disease was assessed by the Simplified Acute Physiology Score (SAPS) II. Serum concentrations of vascular endothelial growth factor (VEGF) and angiopoietin (Ang)-2 were determined by Enzyme-linked immunosorbent assay. The expression of VCAM-1, ICAM-1, E-selectin and L-selectin by CD34+/CD133+-stem cells was significantly upregulated in septic patients, and correlated with sepsis severity. Furthermore, high expression of VCAM-1 by CD34+/CD133+-stem cells revealed a positive association with mortalitiy (p<0.05). Furthermore, significantly higher serum concentrations of VEGF and Ang-2 were found in septic patients, however none showed a strong association with survival. Our data suggest, that VCAM-1 upregulation on CD34+/CD133+-stem cells could play a crucial role in their homing in the course of sepsis. An increase in sepsis severity resulted in both and increase in CD34+/CD133+-stem cells and VCAM-1-expression by those cells, which might reflect an increase in need for vascular repair.
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16
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Patry C, Betzen C, Fathalizadeh F, Fichtner A, Westhoff JH, Fleming T, Eckstein V, Bruckner T, Bielaszewska M, Karch H, Hoffmann GF, Tönshoff B, Rafat N. Endothelial progenitor cells accelerate endothelial regeneration in an in vitro model of Shigatoxin-2a-induced injury via soluble growth factors. Am J Physiol Renal Physiol 2018. [PMID: 29513070 DOI: 10.1152/ajprenal.00633.2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Endothelial injury with consecutive microangiopathy and endothelial dysfunction plays a central role in the pathogenesis of the postenteropathic hemolytic uremic syndrome (D + HUS). To identify new treatment strategies, we examined the regenerative potential of endothelial progenitor cells (EPCs) in an in vitro model of Shiga toxin (Stx) 2a-induced glomerular endothelial injury present in D + HUS and the mechanisms of EPC-triggered endothelial regeneration. We simulated the proinflammatory milieu present in D + HUS by priming human renal glomerular endothelial cells (HRGECs) with tumor necrosis factor-α before stimulation with Stx2a. This measure led to a time- and concentration-dependent decrease of HRGEC viability of human renal glomerular endothelial cells as detected by a colorimetric assay. Coincubation with EPCs (104-105 cells/ml) under dynamic flow conditions led to a significant improvement of cell viability in comparison to untreated monolayers (0.45 ± 0.06 vs. 0.16 ± 0.04, P = 0.003). A comparable regenerative effect of EPCs was observed in a coculture model using cell culture inserts (0.41 ± 0.05 vs. 0.16 ± 0.04, P = 0.003) associated with increased concentrations of vascular endothelial growth factor, insulin-like growth factor I, fibroblast growth factor-2, and hepatocyte growth factor in the supernatant. Treatment of Stx2a-injured monolayers with a combination of these growth factors imitated this effect. EPCs did not show distinct sings of migration and angiogenic tube formation in functional assays. These data demonstrate that EPCs significantly improve endothelial viability after Stx2a-induced injury in vitro and that this effect is associated with the release of growth factors by EPCs.
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Affiliation(s)
- Christian Patry
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany.,Institute of Physiology and Pathophysiology, Division of Cardiovascular Physiology, University of Heidelberg , Heidelberg , Germany
| | - Christian Betzen
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany.,Division of Functional Genome Analysis (B070), German Cancer Research Center , Heidelberg , Germany
| | - Farnoosh Fathalizadeh
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany
| | - Alexander Fichtner
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany
| | - Jens H Westhoff
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany
| | - Thomas Fleming
- Department of Medicine I and Clinical Chemistry, University Hospital Heidelberg , Heidelberg , Germany.,German Center for Diabetes Research , Neuherberg , Germany
| | - Volker Eckstein
- Flow Cytometry Core Unit, Department of Medicine V, University Hospital Heidelberg , Heidelberg , Germany
| | - Tom Bruckner
- Institute of Medical Biometry and Informatics, University of Heidelberg , Heidelberg , Germany
| | | | - Helge Karch
- Institute for Hygiene, University of Münster , Münster , Germany
| | - Georg F Hoffmann
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany
| | - Neysan Rafat
- Department of Pediatrics I, University Children's Hospital Heidelberg , Heidelberg , Germany.,Department of Pharmaceutical Sciences, Bahá'í Institute of Higher Education , Tehran , Iran
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Shi L, Dong N, Ji D, Huang X, Ying Z, Wang X, Chen C. Lipopolysaccharide-induced CCN1 production enhances interleukin-6 secretion in bronchial epithelial cells. Cell Biol Toxicol 2017. [PMID: 28638955 PMCID: PMC5775366 DOI: 10.1007/s10565-017-9401-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a clinical complication caused by primary or secondary lung injury, as well as by systemic inflammation. Researches regarding molecular pathophysiology of ALI/ARDS are immerging with an ultimate aim towards developing prognostic molecular biomarkers and molecule-based therapy. However, the molecular mechanisms concerning ALI/ARDS are still not completely understood. The purpose of the present study was to identify a crucial role of CCN1 in inflammatory microenvironment during ALI/ARDS and focus on a potential communication between CCN1 and interleukin-6 (IL-6) in the airway epithelial cells. Our data illustrated that the expression levels of CCN1 and IL-6 in bronchoalveolar lavage fluid (BALF) in a lipopolysaccharide (LPS)-induced ALI mouse model were significantly elevated and the pulmonary expression of CCN1 was restricted to bronchial epithelial cells. Interestingly, both endogenous and exogenous CCN1 stimulated IL-6 production in vitro. Furthermore, LPS-induced IL-6 production in a bronchial epithelial cell line was blocked by CCN siRNA whereas CCN1 induced by LPS was sensitive to PI3K inhibition. Together, our data indicate a linear signal pathway, LPS-CCN1-IL-6, existing in bronchial epithelial cells after LPS exposure. This finding may represent an additional mechanism and a novel target for development of therapy and biomarker on ALI/ARDS.
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Affiliation(s)
- Lin Shi
- Department of Pulmonary and Critical Care Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China.,Zhongshan Hospital Institute of Clinical Science, Shanghai Institute of Clinical Bioinformatics, Shanghai Medical College, Fudan University, Shanghai, China
| | - Nian Dong
- Department of Pulmonary and Critical Care Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China
| | - Dongxiang Ji
- Department of Pulmonary Medicine, Huzhou Central Hospital, Zhejiang, China
| | - Xiaomin Huang
- Department of Pulmonary and Critical Care Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China
| | - Zhaojian Ying
- Department of Pulmonary and Critical Care Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiangdong Wang
- Department of Pulmonary and Critical Care Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China. .,Zhongshan Hospital Institute of Clinical Science, Shanghai Institute of Clinical Bioinformatics, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Chengshui Chen
- Department of Pulmonary and Critical Care Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China.
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[The role of extracorporeal removal of CO 2 (ECCO 2R) in the management of respiratory diseases]. Rev Mal Respir 2017; 34:598-606. [PMID: 28506729 DOI: 10.1016/j.rmr.2017.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 10/21/2016] [Indexed: 11/20/2022]
Abstract
INTRODUCTION The aim of extracorporeal removal of CO2 (ECCO2R) is to ensure the removal of CO2 without any significant effect on oxygenation. ECCO2R makes use of low to moderate extracorporeal blood flow rates, whereas extracorporeal membrane oxygenation (ECMO) requires high blood flows. STATE OF THE ART For each ECCO2R device it is important to consider not only performance in terms of CO2 removal, but also cost and safety, including the incidence of hemolysis and of hemorrhagic and thrombotic complications. In addition, it is possible that the benefits of such techniques may extend beyond simple removal of CO2. There have been preliminary reports of benefits in terms of reduced respiratory muscle workload. Mobilization of endothelial progenitor cells could also occur, in analogy to the data reported with ECMO, with a potential benefit in term of pulmonary repair. The most convincing clinical experience has been reported in the context of the acute respiratory distress syndrome (ARDS) and severe acute exacerbations of chronic obstructive pulmonary disease (COPD), especially in patients at high risk of failure of non-invasive ventilation. PERSPECTIVES Preliminary results prompt the initiation of randomized controlled trials in these two main indications. Finally, the development of these technologies opens new perspectives in terms of long-term ventilatory support.
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19
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Millar FR, Summers C, Griffiths MJ, Toshner MR, Proudfoot AG. The pulmonary endothelium in acute respiratory distress syndrome: insights and therapeutic opportunities. Thorax 2016; 71:462-73. [DOI: 10.1136/thoraxjnl-2015-207461] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 02/12/2016] [Indexed: 01/23/2023]
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20
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Im D, Shi W, Driscoll B. Pediatric Acute Respiratory Distress Syndrome: Fibrosis versus Repair. Front Pediatr 2016; 4:28. [PMID: 27066462 PMCID: PMC4811965 DOI: 10.3389/fped.2016.00028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/15/2016] [Indexed: 01/11/2023] Open
Abstract
Clinical and basic experimental approaches to pediatric acute lung injury (ALI), including acute respiratory distress syndrome (ARDS), have historically focused on acute care and management of the patient. Additional efforts have focused on the etiology of pediatric ALI and ARDS, clinically defined as diffuse, bilateral diseases of the lung that compromise function leading to severe hypoxemia within 7 days of defined insult. Insults can include ancillary events related to prematurity, can follow trauma and/or transfusion, or can present as sequelae of pulmonary infections and cardiovascular disease and/or injury. Pediatric ALI/ARDS remains one of the leading causes of infant and childhood morbidity and mortality, particularly in the developing world. Though incidence is relatively low, ranging from 2.9 to 9.5 cases/100,000 patients/year, mortality remains high, approaching 35% in some studies. However, this is a significant decrease from the historical mortality rate of over 50%. Several decades of advances in acute management and treatment, as well as better understanding of approaches to ventilation, oxygenation, and surfactant regulation have contributed to improvements in patient recovery. As such, there is a burgeoning interest in the long-term impact of pediatric ALI/ARDS. Chronic pulmonary deficiencies in survivors appear to be caused by inappropriate injury repair, with fibrosis and predisposition to emphysema arising as irreversible secondary events that can severely compromise pulmonary development and function, as well as the overall health of the patient. In this chapter, the long-term effectiveness of current treatments will be examined, as will the potential efficacy of novel, acute, and long-term therapies that support repair and delay or even impede the onset of secondary events, including fibrosis.
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Affiliation(s)
- Daniel Im
- Pediatric Critical Care Medicine, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, University of Southern California , Los Angeles, CA , USA
| | - Wei Shi
- Developmental Biology and Regenerative Medicine Program, Department of Surgery, The Saban Research Institute, Children's Hospital Los Angeles, University of Southern California , Los Angeles, CA , USA
| | - Barbara Driscoll
- Developmental Biology and Regenerative Medicine Program, Department of Surgery, The Saban Research Institute, Children's Hospital Los Angeles, University of Southern California , Los Angeles, CA , USA
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21
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Xu X, Yang J, Li N, Wu R, Tian H, Song H, Wang H. Role of Endothelial Progenitor Cell Transplantation in Rats With Sepsis. Transplant Proc 2015; 47:2991-3001. [DOI: 10.1016/j.transproceed.2015.10.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 10/07/2015] [Indexed: 12/11/2022]
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22
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Lehle K, Friedl L, Wilm J, Philipp A, Müller T, Lubnow M, Schmid C. Accumulation of Multipotent Progenitor Cells on Polymethylpentene Membranes During Extracorporeal Membrane Oxygenation. Artif Organs 2015; 40:577-85. [PMID: 26510997 DOI: 10.1111/aor.12599] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Multipotent progenitor cells were mobilized during pediatric extracorporeal membrane oxygenation (ECMO). We hypothesize that these cells also adhered onto polymethylpentene (PMP) fibers within the membrane oxygenator (MO) during adult ECMO support. Mononuclear cells were removed from the surface of explanted PMP-MOs (n = 16). Endothelial-like outgrowth and mesenchymal-like cells were characterized by flow cytometric analysis using different surface markers. Spindle-shaped attaching cells were identified early, but without proliferative activity. After long-term cultivation palisading type or cobblestone-type outgrowth cells with high proliferative activity appeared and were characterized as (i) leukocytoid CD45+/CD31+ (CD133+/VEGFR-II+/CD90+/CD14+/CD146dim/CD105dim); (ii) endothelial-like CD45-/CD31+ (VEGF-RII+/CD146+/CD105+/CD133-/CD14-/CD90-); and (iii) mesenchymal-like cells CD45-/CD31- (CD105+/CD90+/CD133dim/VEGFR-II-/CD146-/CD14-). The distribution of the cell populations depended on the MO and cultivation time. Endothelial-like cells formed capillary-like structures and did uptake Dil-acetylated low-density lipoprotein. Endothelial- and mesenchymal-like cells adhered on the surface of PMP-MOs. Further research is needed to identify the clinical relevance of these cells.
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Affiliation(s)
- Karla Lehle
- Department of Cardiothoracic Surgery, University Medical Center, Regensburg, Germany
| | - Lucas Friedl
- Department of Cardiothoracic Surgery, University Medical Center, Regensburg, Germany
| | - Julius Wilm
- Department of Cardiothoracic Surgery, University Medical Center, Regensburg, Germany
| | - Alois Philipp
- Department of Cardiothoracic Surgery, University Medical Center, Regensburg, Germany
| | - Thomas Müller
- Department of Internal Medicine II, University Medical Center, Regensburg, Germany
| | - Matthias Lubnow
- Department of Internal Medicine II, University Medical Center, Regensburg, Germany
| | - Christof Schmid
- Department of Cardiothoracic Surgery, University Medical Center, Regensburg, Germany
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23
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Patry C, Orfanos SE, Rafat N. Translational research in ARDS patients: new biological phenotypes. Intensive Care Med 2015. [PMID: 26224249 DOI: 10.1007/s00134-015-4005-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Christian Patry
- Department of Pediatrics I, University Children's Hospital, University of Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Stylianos E Orfanos
- Second Department of Critical Care, Attikon University Hospital, University of Athens Medical School, 1, Rimini St., 12462, Haidari, Athens, Greece
| | - Neysan Rafat
- Department of Pediatrics I, University Children's Hospital, University of Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany.
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Combined iNO and endothelial progenitor cells improve lung alveolar and vascular structure in neonatal rats exposed to prolonged hyperoxia. Pediatr Res 2015; 77:784-92. [PMID: 25742118 DOI: 10.1038/pr.2015.39] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 11/06/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Stem cells or inhaled nitric oxide (iNO) are reported to improve lung structures in bronchopulmonary dysplasia (BPD) models. We hypothesized that combined iNO and transplanted endothelial progenitor cells (EPCs) might restore lung structure in rats after neonatal hyperoxia. METHODS Litters were separated into eight groups: room air, hyperoxia, hyperoxia + iNO, hyperoxia + iNO + L-NAME, hyperoxia + EPCs, hyperoxia + EPCs + L-NAME, hyperoxia + EPCs + iNO, and hyperoxia + EPCs + iNO + L-NAME. Litters were exposed to hyperoxia from the 21st day, then, sacrificed. EPCs were injected on the 21st day. L-NAME was injected daily for 7 d from the 21st day. Serum vascular endothelial growth factor (VEGF), radial alveolar count (RAC), VIII factor, EPCs engraftment, lung VEGF, VEGFR2, endothelial nitric oxide (eNOS) and SDF-1 expression, and NO production were examined. RESULTS Hyperoxia exposure led to air space enlargement, loss of lung capillaries, and low expression of VEGF and eNOS. Transplanted EPCs, when combined with iNO, had significantly increased engraftment in lungs, compared to EPCs alone, upon hyperoxia exposure. There was improvement in alveolarization, microvessel density, and upregulation of VEGF and eNOS proteins in the hyperoxia-exposed EPCs with iNO group, compared to hyperoxia alone. CONCLUSION Combined EPCs and iNO improved lung structures after neonatal hyperoxia. This was associated with the upregulation of VEGF and eNOS expression.
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Mao SZ, Ye X, Liu G, Song D, Liu SF. Resident Endothelial Cells and Endothelial Progenitor Cells Restore Endothelial Barrier Function After Inflammatory Lung Injury. Arterioscler Thromb Vasc Biol 2015; 35:1635-1644. [PMID: 25977568 DOI: 10.1161/atvbaha.115.305519] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 04/29/2015] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Disruption of endothelial barrier integrity is a characteristic of many inflammatory conditions. However, the origin and function of endothelial cells (ECs) restoring endothelial barrier function remain unknown. This study defined the roles of resident ECs (RECs) and bone marrow-derived endothelial progenitor cells (BMDEPCs) in endothelial barrier restoration after endotoxemic lung injury. APPROACH AND RESULTS We generated mice that enable to quantify proliferating RECs or BMDEPCs and also to study the causal link between REC or BMDEPC proliferation and endothelial barrier restoration. Using these mouse models, we showed that endothelial barrier restoration was associated with increased REC and BMDEPC proliferation. RECs and BMDEPCs participate in barrier repair. Immunofluorescence staining demonstrated that RECs proliferate in situ on endothelial layer and that BMDEPCs are engrafted into endothelial layer of lung microvessels at the active barrier repair phase. In lungs, 8 weeks after lipopolysaccharide-induced injury, the number of REC-derived ECs (CD45(-)/CD31(+)/BrdU(+)/rtTA(+)) or BMDEPC-derived ECs (CD45(-)/CD31(+)/eNOS(+)/GFP(+)) increased by 22- or 121-fold, respectively. The suppression of REC or BMDEPC proliferation by blocking REC or BMDEPC intrinsic nuclear factor-κB at the barrier repair phase was associated with an augmented endothelial permeability and impeded endothelial barrier recovery. RECs and BMDEPCs contributed differently to endothelial barrier repair. In lungs, 8 weeks after lipopolysaccharide-induced injury, REC-derived ECs constituted 22%, but BMDEPC-derived ECs constituted only 3.7% of the total new ECs. CONCLUSIONS REC is a major and BMDEPC is a complementary source of new ECs in endothelial barrier restoration. RECs and BMDEPCs play important roles in endothelial barrier restoration after inflammatory lung injury.
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Affiliation(s)
- Sun-Zhong Mao
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A.,Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaobing Ye
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A
| | - Gang Liu
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A
| | - Dongmei Song
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A
| | - Shu Fang Liu
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A.,Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou 325035, China
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26
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Zhang LL, Zhao ZG, Niu CY, Zhang J. Exogenous normal lymph alleviates lipopolysaccharide-induced acute lung injury through lessening the adhesion molecules. Acta Cir Bras 2014; 29:287-91. [PMID: 24863315 DOI: 10.1590/s0102-86502014000500001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/19/2014] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To evaluate the role of exogenous normal lymph (ENL) on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in rats. METHODS ALI was induced by the jugular vein injection of LPS (iv, 15 mg/kg) in rats of the LPS and LPS+ENL groups within 15 min, then, ENL without cell components (5 ml/kg) was infused at the speed of 0.5 ml per minute in the LPS+ENL group, the same amount of saline was administered in the LPS group. The rats in the sham group received the same surgical procedure and saline. The histomorphology and the levels of P-selectin, intercellular adhesion molecule-1 (ICAM-1), myeloperoxidase (MPO) in pulmonary tissue were assessed. RESULTS LPS induced pulmonary injury as well as increased the wet/dry weight ratio (W/D) and the levels of P-selectin, ICAM-1, and MPO in pulmonary tissues. These deleterious effects of LPS were significantly ameliorated by ENL treatment. CONCLUSION Exogenous normal lymph could markedly alleviate the acute lung injury induced by lipopolysaccharide, and its effects might be related to lessening the adhesion molecules.
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Affiliation(s)
- Li-li Zhang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Zi-gang Zhao
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Chun-yu Niu
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Jing Zhang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
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Mao SZ, Ye X, Liu G, Song D, Liu SF. An obligatory role of NF-κB in mediating bone marrow derived endothelial progenitor cell recruitment and proliferation following endotoxemic multiple organ injury in mice. PLoS One 2014; 9:e111087. [PMID: 25333282 PMCID: PMC4205081 DOI: 10.1371/journal.pone.0111087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 09/25/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Recruitment of bone marrow derived endothelial progenitor cells (BMDEPCs) alleviates multiple organ injury (MOI) and improves outcomes. However, mechanisms mediating BMDEPC recruitment following septic MOI remain largely unknown. This study characterized the kinetics of BMDEPC recruitment and proliferation and defined the role of NF-κB in regulating BMDEPC recruitment and proliferation. METHODS AND MAIN FINDINGS Chimeric mice with an intact or disrupted NF-κB p50 gene and BMDEPC-restricted expression of green fluorescent protein were created and injected with LPS (2 mg/kg, i.p.). BMDEPC recruitment and proliferation in multiple organs were quantified. BMDEPC recruitment and proliferation are highly organ-dependent. Lungs had the highest number of BMDEPC recruitment, whereas heart, liver and kidney had only a small fraction of the number of BMDEPCs in lungs. Number of proliferating BMDEPCs was several-fold higher in lungs than in other 3 organs. Kinetically, BMDEPC recruitment into different organs showed different time course profiles. NF-κB plays obligatory roles in mediating BMDEPC recruitment and proliferation. Universal deletion of NF-κB p50 gene inhibited LPS-induced BMDEPC recruitment and proliferation by 95% and 69% in heart. However, the contribution of NF-κB to these regulations varies significantly between organs. In liver, universal p50 gene deletion reduced LPS-induced BMDEPC recruitment and proliferation only by 49% and 35%. NF-κB activities in different tissue compartments play distinct roles. Selective p50 gene deletion either in stromal/parenchymal cells or in BM/blood cells inhibited BMDEPC recruitment by a similar extent. However, selective p50 gene deletion in BM/blood cells inhibited, but in stromal/parenchymal cells augmented BMDEPC proliferation. CONCLUSIONS BMDEPC recruitment and proliferation display different kinetics in different organs following endotoxemic MOI. NF-κB plays obligatory and organ-dependent roles in regulating BMDEPC recruitment and proliferation. NF-κB activities in different tissue compartments play distinct roles in regulating BMDEPC proliferation.
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Affiliation(s)
- Sun-Zhong Mao
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, New York, United States of America
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaobing Ye
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, New York, United States of America
| | - Gang Liu
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, New York, United States of America
| | - Dongmei Song
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, New York, United States of America
| | - Shu Fang Liu
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, New York, United States of America
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
- * E-mail:
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Rafat N, Dacho C, Kowanetz G, Betzen C, Tönshoff B, Yard B, Beck G. Bone marrow-derived progenitor cells attenuate inflammation in lipopolysaccharide-induced acute respiratory distress syndrome. BMC Res Notes 2014; 7:613. [PMID: 25196505 PMCID: PMC4161837 DOI: 10.1186/1756-0500-7-613] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 08/29/2014] [Indexed: 01/11/2023] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) is the most common cause of respiratory failure among critically ill patients. Novel treatment strategies are required to address this common clinical problem. The application of exogenous adult stem cells was associated with a beneficial outcome in various pre-clinical models of ARDS. In the present study we evaluated the functional capacity and homing ability of bone marrow-derived progenitor cells (BMDPC) in vitro and investigated their potential as a treatment strategy in lipopolysaccharide (LPS)-induced ARDS. Results Evaluation of the BMDPC showed functional capacity to form endothelial outgrowth cell colonies, which stained positive for CD133 and CD31. Furthermore, DiI-stained BMDPC were demonstrated to home to injured lung tissue. Rats treated with BMDPC showed significantly reduced histopathological changes, a reduced expression of ICAM-1 and VCAM-1 by the lung tissue, an inhibition of proinflammatory cytokine synthesis, a reduced weight loss and a reduced mortality (p < 0.03) compared to rats treated with LPS alone. Conclusions These findings suggest that the application of exogenous BMDPC can attenuate inflammation in LPS-induced ARDS and thereby reduce the severity of septic organ damage. Cell therapy strategies using adult stem cells might therefore become a novel and alternative option in ARDS therapy.
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Affiliation(s)
| | | | | | | | | | | | - Grietje Beck
- Department for Anaesthesiology and Intensive Care Medicine, Dr, Horst-Schmidt Clinic, Wiesbaden, Germany.
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De Vito P. Atrial natriuretic peptide: an old hormone or a new cytokine? Peptides 2014; 58:108-16. [PMID: 24973596 DOI: 10.1016/j.peptides.2014.06.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 02/07/2023]
Abstract
Atrial natriuretic peptide (ANP) a cardiovascular hormone mainly secreted by heart atria in response to stretching forces induces potent diuretic, natriuretic and vasorelaxant effects and plays a major role in the homeostasis of blood pressure as well as of water and salt balance. The hormone can also act as autocrine/paracrine factor and modulate several immune functions as well as cytoprotective effects. ANP contributes to innate immunity being able to: (i) stimulate the host defense against extracellular microbes by phagocytosis and Reactive Oxygen Species (ROS) release; (ii) inhibit the synthesis and release of proinflammatory markers such as TNF-α, IL-1, MCP-1, nitric oxide (NO), cyclooxygenase-2 (COX-2); (iii) inhibit the expression of adhesion molecules such as ICAM-1 and E-selectin. ANP can also affect the adaptive immunity being able to: (i) reduce the number of CD4(+) CD8(+) lymphocytes as well as to increase the CD4(-) CD8(-) cells; (ii) stimulate the differentiation of naïve CD4(+) cells toward the Th2 and/or Th17 phenotype. The hormone shows protective effects during: (i) ventricular hypertrophy and myocardial injury; (ii) atherosclerosis and hypertension by the induction of antiproliferative effects; (iii) oxidative stress counteracting the dangerous effects of ROS; (iv) growth of tumors cells by the induction of apoptosis or necrosis. Since not much is known about of the role of ANP locally produced and released by non-cardiac cells, this review outlines the contribution of ANP in different aspect of innate as well as adaptive immunity also with respect to the excessive cell growth in physiological and/or pathological conditions.
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Affiliation(s)
- Paolo De Vito
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy.
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Yang J, Jia Z. Cell-based therapy in lung regenerative medicine. Regen Med Res 2014; 2:7. [PMID: 25984335 PMCID: PMC4389643 DOI: 10.1186/2050-490x-2-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 01/24/2014] [Indexed: 02/06/2023] Open
Abstract
Chronic lung diseases are becoming a leading cause of death worldwide. There are few effective treatments for those patients and less choices to prevent the exacerbation or even reverse the progress of the diseases. Over the past decade, cell-based therapies using stem cells to regenerate lung tissue have experienced a rapid growth in a variety of animal models for distinct lung diseases. This novel approach offers great promise for the treatment of several devastating and incurable lung diseases, including emphysema, idiopathic pulmonary fibrosis, pulmonary hypertension, and the acute respiratory distress syndrome. In this review, we provide a concise summary of the current knowledge on the attributes of endogenous lung epithelial stem/progenitor cells (EpiSPCs), mesenchymal stem cells (MSCs) and endothelial progenitor cells (EPCs) in both animal models and translational studies. We also describe the promise and challenges of tissue bioengineering in lung regenerative medicine. The therapeutic potential of MSCs is further discussed in IPF and chronic obstructive pulmonary diseases (COPD).
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Affiliation(s)
- Jibing Yang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109 USA
| | - Zhenquan Jia
- Department of Biology, College of Arts & Sciences, University of North Carolina at Greensboro, Greensboro, NC 27412 USA
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Zhu YG, Hao Q, Monsel A, Feng XM, Lee JW. Adult stem cells for acute lung injury: remaining questions and concerns. Respirology 2014; 18:744-56. [PMID: 23578018 DOI: 10.1111/resp.12093] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 04/02/2013] [Indexed: 12/22/2022]
Abstract
Acute lung injury (ALI) or acute respiratory distress syndrome remains a major cause of morbidity and mortality in hospitalized patients. The pathophysiology of ALI involves complex interactions between the inciting event, such as pneumonia, sepsis or aspiration, and the host immune response resulting in lung protein permeability, impaired resolution of pulmonary oedema, an intense inflammatory response in the injured alveolus and hypoxemia. In multiple preclinical studies, adult stem cells have been shown to be therapeutic due to both the ability to mitigate injury and inflammation through paracrine mechanisms and perhaps to regenerate tissue by virtue of their multi-potency. These characteristics have stimulated intensive research efforts to explore the possibility of using stem or progenitor cells for the treatment of lung injury. A variety of stem or progenitor cells have been isolated, characterized and tested experimentally in preclinical animal models of ALI. However, questions remain concerning the optimal dose, route and the adult stem or progenitor cell to use. Here, the current mechanisms underlying the therapeutic effect of stem cells in ALI as well as the questions that will arise as clinical trials for ALI are planned are reviewed.
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Affiliation(s)
- Ying-Gang Zhu
- Department of Pulmonary Medicine, Huadong Hospital, Fudan University, Shanghai, China
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Brittan M, Hoogenboom MM, Padfield GJ, Tura O, Fujisawa T, Maclay JD, Macnee W, Mills NL. Endothelial progenitor cells in patients with chronic obstructive pulmonary disease. Am J Physiol Lung Cell Mol Physiol 2013; 305:L964-9. [PMID: 24142520 DOI: 10.1152/ajplung.00183.2013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The pathogenesis of chronic obstructive pulmonary disease is not fully understood. The objective of this study was to compare circulating endothelial progenitor cells in patients with chronic obstructive pulmonary disease to age, sex, and cigarette smoking matched healthy controls. Patients with chronic obstructive pulmonary disease (n = 37) and healthy controls (n = 19) were matched by age, sex, and smoking status. Circulating hematopoietic progenitor cells (CD34(+) or CD133(+) mononuclear cells) and endothelial progenitor cells (CD34(+)KDR(+) or CD34(+)CD133(+)KDR(+) mononuclear cells) were quantified by flow cytometry. Endothelial cell-colony forming units from peripheral blood mononuclear cells were quantified in vitro and phenotypic analysis carried out using immunocytochemistry. Patients with chronic obstructive pulmonary disease had more circulating mononuclear cells compared with controls (8.4 ± 0.6 vs. 5.9 ± 0.4 × 10(9) cells/l; P = 0.02). CD34(+) hematopoietic progenitor cells were reduced as a proportion of mononuclear cells in patients compared with controls (0.99 ± 0.12 vs. 1.9 ± 0.12%; P = 0.02); however, there were no differences in the absolute number of CD34(+), CD34(+)KDR(+), or CD34(+)CD133(+)KDR(+) cells (P > 0.05 for all). Endothelial cell-colony forming units were increased in patients with chronic obstructive pulmonary disease compared with controls (13.7 ± 5.2 vs. 2.7 ± 0.9 colonies; P = 0.048). In contrast to previous studies, the number of circulating progenitor cells was not reduced in patients with chronic obstructive pulmonary disease compared with carefully matched controls. It seems unlikely that circulating endothelial progenitor cells or failure of angiogenesis plays a central role in the development of emphysema.
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Affiliation(s)
- Mairi Brittan
- BHF/Univ. Centre for Cardiovascular Science, The Univ. of Edinburgh, Scottish Centre for Regenerative Medicine, Little France Crescent, Edinburgh EH16 4UU, UK.
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