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Dai C, Lin X, Qi Y, Wang Y, Lv Z, Zhao F, Deng Z, Feng X, Zhang T, Pu X. Vitamin D3 improved hypoxia-induced lung injury by inhibiting the complement and coagulation cascade and autophagy pathway. BMC Pulm Med 2024; 24:9. [PMID: 38166725 PMCID: PMC10759436 DOI: 10.1186/s12890-023-02784-y] [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: 03/02/2023] [Accepted: 11/23/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Pulmonary metabolic dysfunction can cause lung tissue injury. There is still no ideal drug to protect against hypoxia-induced lung injury, therefore, the development of new drugs to prevent and treat hypoxia-induced lung injury is urgently needed. We aimed to explore the ameliorative effects and molecular mechanisms of vitamin D3 (VD3) on hypoxia-induced lung tissue injury. METHODS Sprague-Dawley (SD) rats were randomly divided into three groups: normoxia, hypoxia, and hypoxia + VD3. The rat model of hypoxia was established by placing the rats in a hypobaric chamber. The degree of lung injury was determined using hematoxylin and eosin (H&E) staining, lung water content, and lung permeability index. Transcriptome data were subjected to differential gene expression and pathway analyses. In vitro, type II alveolar epithelial cells were co-cultured with hepatocytes and then exposed to hypoxic conditions for 24 h. For VD3 treatment, the cells were treated with low and high concentrations of VD3. RESULTS Transcriptome and KEGG analyses revealed that VD3 affects the complement and coagulation cascade pathways in hypoxia-induced rats, and the genes enriched in this pathway were Fgb/Fga/LOC100910418. Hypoxia can cause increases in lung edema, inflammation, and lung permeability disruption, which are attenuated by VD3 treatment. VD3 weakened the complement and coagulation cascade in the lung and liver of hypoxia-induced rats, characterized by lower expression of fibrinogen alpha chain (Fga), fibrinogen beta chain (Fgb), protease-activated receptor 1 (PAR1), protease-activated receptor 3 (PAR3), protease-activated receptor 4 (PAR4), complement (C) 3, C3a, and C5. In addition, VD3 improved hypoxic-induced type II alveolar epithelial cell damage and inflammation by inhibiting the complement and coagulation cascades. Furthermore, VD3 inhibited hypoxia-induced autophagy in vivo and in vitro, which was abolished by the mitophagy inducer, carbonyl cyanide-m-chlorophenylhydrazone (CCCP). CONCLUSION VD3 alleviated hypoxia-induced pulmonary edema by inhibiting the complement and coagulation cascades and autophagy pathways.
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Affiliation(s)
- Chongyang Dai
- Qinghai University, Xining, Qinghai Province, 810016, People's Republic of China
| | - Xue Lin
- West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610000, People's Republic of China
| | - Yinglian Qi
- Qinghai Normal University, Xining, Qinghai Province, 810008, People's Republic of China
| | - Yaxuan Wang
- Qinghai University, Xining, Qinghai Province, 810016, People's Republic of China
| | - Zhongkui Lv
- Qinghai University, Xining, Qinghai Province, 810016, People's Republic of China
| | - Fubang Zhao
- Qinghai University, Xining, Qinghai Province, 810016, People's Republic of China
| | - Zhangchang Deng
- Qinghai University, Xining, Qinghai Province, 810016, People's Republic of China
| | - Xiaokai Feng
- Department of Pulmonary and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People's Republic of China.
- Department of Respiratory and Critical Care Medicine, Qinghai Provincial People's Hospital, Qinghai University, Xining, Qinghai Province, 810007, People's Republic of China.
| | - Tongzuo Zhang
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai Province, 810001, People's Republic of China.
| | - Xiaoyan Pu
- Qinghai University, Xining, Qinghai Province, 810016, People's Republic of China.
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Luo Y, Ge S, Chen Q, Lin S, He W, Zeng M. Overexpression of FoxM1 optimizes the therapeutic effect of bone marrow mesenchymal stem cells on acute respiratory distress syndrome. Stem Cell Res Ther 2023; 14:27. [PMID: 36788588 PMCID: PMC9926819 DOI: 10.1186/s13287-023-03240-8] [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: 02/16/2022] [Accepted: 01/17/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Injury of alveolar epithelial cells and capillary endothelial cells is crucial in the pathogenesis of acute lung injury/acute respiratory distress syndrome (ALI/ARDS). Mesenchymal stem cells (MSCs) are a promising cell source for ALI/ARDS treatment. Overexpression of Fork head box protein M1 (FoxM1) facilitates MSC differentiation into alveolar type II (AT II) cells in vitro. Moreover, FoxM1 has been shown to repair the endothelial barrier. Therefore, this study explored whether overexpression of FoxM1 promotes the therapeutic effect of bone marrow-derived MSCs (BMSCs) on ARDS by differentiation of BMSCs into AT II cells or a paracrine mechanism. METHODS A septic ALI model was established in mice by intraperitoneal administration of lipopolysaccharide. The protective effect of BMSCs-FoxM1 on ALI was explored by detecting pathological variations in the lung, total protein concentration in bronchoalveolar lavage fluid (BALF), wet/dry (W/D) lung weight ratio, oxidative stress levels, cytokine levels, and retention of BMSCs in the lung. In addition, we assessed whether FoxM1 overexpression promoted the therapeutic effect of BMSCs on ALI/ARDS by differentiating into AT II cells using SPC-/- mice. Furthermore, the protective effect of BMSCs-FoxM1 on lipopolysaccharide-induced endothelial cell (EC) injury was explored by detecting EC proliferation, apoptosis, scratch wounds, tube formation, permeability, and oxidative stress, and analyzing whether the Wnt/β-catenin pathway contributes to the regulatory mechanism in vitro using a pathway inhibitor. RESULTS Compared with BMSCs-Vector, treatment with BMSCs-FoxM1 significantly decreased the W/D lung weight ratio, total BALF protein level, lung injury score, oxidative stress, and cytokine levels. With the detected track of BMSCs-FoxM1, we observed a low residency rate and short duration of residency in the lung. Notably, SPC was not expressed in SPC-/- mice injected with BMSCs-FoxM1. Furthermore, BMSCs-FoxM1 enhanced EC proliferation, migration, and tube formation; inhibited EC apoptosis and inflammation; and maintained vascular integrity through activation of the Wnt/β-catenin pathway, which was partially reversed by XAV-939. CONCLUSION Overexpression of FoxM1 enhanced the therapeutic effect of BMSCs on ARDS, possibly through a paracrine mechanism rather than by promoting BMSC differentiation into AT II cells in vivo, and prevented LPS-induced EC barrier disruption partially through activating the Wnt/β-catenin signaling pathway in vitro.
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Affiliation(s)
- Yuling Luo
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Shanhui Ge
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Qingui Chen
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Shan Lin
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Wanmei He
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Mian Zeng
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080, Guangdong, China.
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Albaiceta GM, Brochard L, Dos Santos CC, Fernández R, Georgopoulos D, Girard T, Jubran A, López-Aguilar J, Mancebo J, Pelosi P, Skrobik Y, Thille AW, Wilcox ME, Blanch L. The central nervous system during lung injury and mechanical ventilation: a narrative review. Br J Anaesth 2021; 127:648-659. [PMID: 34340836 DOI: 10.1016/j.bja.2021.05.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/03/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022] Open
Abstract
Mechanical ventilation induces a number of systemic responses for which the brain plays an essential role. During the last decade, substantial evidence has emerged showing that the brain modifies pulmonary responses to physical and biological stimuli by various mechanisms, including the modulation of neuroinflammatory reflexes and the onset of abnormal breathing patterns. Afferent signals and circulating factors from injured peripheral tissues, including the lung, can induce neuronal reprogramming, potentially contributing to neurocognitive dysfunction and psychological alterations seen in critically ill patients. These impairments are ubiquitous in the presence of positive pressure ventilation. This narrative review summarises current evidence of lung-brain crosstalk in patients receiving mechanical ventilation and describes the clinical implications of this crosstalk. Further, it proposes directions for future research ranging from identifying mechanisms of multiorgan failure to mitigating long-term sequelae after critical illness.
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Affiliation(s)
- Guillermo M Albaiceta
- Unidad de Cuidados Intensivos Cardiológicos, Hospital Universitario Central de Asturias, Oviedo, Spain; Departamento de Biología Funcional, Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain; Centro de Investigación Biomédica en Red-Enfermedades Respiratorias (CIBER)-Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.
| | - Laurent Brochard
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada; Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
| | - Claudia C Dos Santos
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada; Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
| | - Rafael Fernández
- Centro de Investigación Biomédica en Red-Enfermedades Respiratorias (CIBER)-Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Critical Care Department, Althaia Xarxa Assistencial Universitaria de Manresa, Universitat Internacional de Catalunya, Manresa, Spain
| | - Dimitris Georgopoulos
- Intensive Care Medicine Department, University Hospital of Heraklion, School of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Timothy Girard
- Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Amal Jubran
- Division of Pulmonary and Critical Care Medicine, Hines VA Hospital, Hines, IL, USA; Loyola University of Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Josefina López-Aguilar
- Centro de Investigación Biomédica en Red-Enfermedades Respiratorias (CIBER)-Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Critical Care Center, Hospital Universitari Parc Taulí, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain
| | - Jordi Mancebo
- Servei Medicina Intensiva, University Hospital Sant Pau, Barcelona, Spain
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy; Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Yoanna Skrobik
- Department of Medicine, McGill University, Regroupement de Soins Critiques Respiratoires, Réseau de Soins Respiratoires FRQS, Montreal, QC, Canada
| | - Arnaud W Thille
- CHU de Poitiers, Médecine Intensive Réanimation, Poitiers, France; INSERM CIC 1402 ALIVE, Université de Poitiers, Poitiers, France
| | - Mary E Wilcox
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada; Department of Medicine, Division of Respirology (Critical Care Medicine), University Health Network, Toronto, ON, Canada
| | - Lluis Blanch
- Centro de Investigación Biomédica en Red-Enfermedades Respiratorias (CIBER)-Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Critical Care Center, Hospital Universitari Parc Taulí, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain
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Fujimoto S, Fujita Y, Kadota T, Araya J, Kuwano K. Intercellular Communication by Vascular Endothelial Cell-Derived Extracellular Vesicles and Their MicroRNAs in Respiratory Diseases. Front Mol Biosci 2021; 7:619697. [PMID: 33614707 PMCID: PMC7890564 DOI: 10.3389/fmolb.2020.619697] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/30/2020] [Indexed: 12/12/2022] Open
Abstract
Respiratory diseases and their comorbidities, such as cardiovascular disease and muscle atrophy, have been increasing in the world. Extracellular vesicles (EVs), which include exosomes and microvesicles, are released from almost all cell types and play crucial roles in intercellular communication, both in the regulation of homeostasis and the pathogenesis of various diseases. Exosomes are of endosomal origin and range in size from 50 to 150 nm in diameter, while microvesicles are generated by the direct outward budding of the plasma membrane in size ranges of 100-2,000 nm in diameter. EVs can contain various proteins, metabolites, and nucleic acids, such as mRNA, non-coding RNA species, and DNA fragments. In addition, these nucleic acids in EVs can be functional in recipient cells through EV cargo. The endothelium is a distributed organ of considerable biological importance, and disrupted endothelial function is involved in the pathogenesis of respiratory diseases such as chronic obstructive pulmonary disease, pulmonary hypertension, and acute respiratory distress syndrome. Endothelial cell-derived EVs (EC-EVs) play crucial roles in both physiological and pathological conditions by traveling to distant sites through systemic circulation. This review summarizes the pathological roles of vascular microRNAs contained in EC-EVs in respiratory diseases, mainly focusing on chronic obstructive pulmonary disease, pulmonary hypertension, and acute respiratory distress syndrome. Furthermore, this review discusses the potential clinical usefulness of EC-EVs as therapeutic agents in respiratory diseases.
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Affiliation(s)
- Shota Fujimoto
- Division of Respiratory Disease, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yu Fujita
- Division of Respiratory Disease, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.,Department of Translational Research for Exosomes, The Jikei University School of Medicine, Tokyo, Japan
| | - Tsukasa Kadota
- Division of Respiratory Disease, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Jun Araya
- Division of Respiratory Disease, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuyoshi Kuwano
- Division of Respiratory Disease, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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5
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Ko J, Rounds S, Lu Q. Sustained adenosine exposure causes endothelial mitochondrial dysfunction via equilibrative nucleoside transporters. Pulm Circ 2020; 10:2045894020924994. [PMID: 32523687 PMCID: PMC7235668 DOI: 10.1177/2045894020924994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/16/2020] [Indexed: 12/12/2022] Open
Abstract
Adenosine is a potent signaling molecule that has paradoxical effects on lung diseases. We have previously demonstrated that sustained adenosine exposure by inhibition of adenosine degradation impairs lung endothelial barrier integrity and causes intrinsic apoptosis through equilibrative nucleoside transporter1/2-mediated intracellular adenosine signaling. In this study, we further demonstrated that sustained adenosine exposure increased mitochondrial reactive oxygen species and reduced mitochondrial respiration via equilibrative nucleoside transporter1/2, but not via adenosine receptor-mediated signaling. We have previously shown that sustained adenosine exposure activates p38 and c-Jun N-terminal kinases in mitochondria. Here, we show that activation of p38 and JNK partially contributed to sustained adenosine-induced mitochondrial reactive oxygen species production. We also found that sustained adenosine exposure promoted mitochondrial fission and increased mitophagy. Finally, mitochondria-targeted antioxidants prevented sustained adenosine exposure-induced mitochondrial fission and improved cell survival. Our results suggest that inhibition of equilibrative nucleoside transporter1/2 and mitochondria-targeted antioxidants may be potential therapeutic approaches for lung diseases associated with sustained elevated adenosine.
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Affiliation(s)
- Junsuk Ko
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Providence, RI, USA.,MD Anderson Cancer Center and University of Texas Health Science at Houston Graduate School, Houston, TX, USA.,Department of Biochemistry and Molecular Biology, McGovern Medical School, Houston, TX, USA
| | - Sharon Rounds
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Providence, RI, USA.,Department of Medicine, Alpert Medical School of Brown University, Providence, RI, USA
| | - Qing Lu
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Providence, RI, USA.,Department of Medicine, Alpert Medical School of Brown University, Providence, RI, USA
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6
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Chambers ED, White A, Vang A, Wang Z, Ayala A, Weng T, Blackburn M, Choudhary G, Rounds S, Lu Q. Blockade of equilibrative nucleoside transporter 1/2 protects against Pseudomonas aeruginosa-induced acute lung injury and NLRP3 inflammasome activation. FASEB J 2020; 34:1516-1531. [PMID: 31914698 PMCID: PMC7045807 DOI: 10.1096/fj.201902286r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 11/11/2022]
Abstract
Pseudomonas aeruginosa infections are increasingly multidrug resistant and cause healthcare-associated pneumonia, a major risk factor for acute lung injury (ALI)/acute respiratory distress syndrome (ARDS). Adenosine is a signaling nucleoside with potential opposing effects; adenosine can either protect against acute lung injury via adenosine receptors or cause lung injury via adenosine receptors or equilibrative nucleoside transporter (ENT)-dependent intracellular adenosine uptake. We hypothesized that blockade of intracellular adenosine uptake by inhibition of ENT1/2 would increase adenosine receptor signaling and protect against P. aeruginosa-induced acute lung injury. We observed that P. aeruginosa (strain: PA103) infection induced acute lung injury in C57BL/6 mice in a dose- and time-dependent manner. Using ENT1/2 pharmacological inhibitor, nitrobenzylthioinosine (NBTI), and ENT1-null mice, we demonstrated that ENT blockade elevated lung adenosine levels and significantly attenuated P. aeruginosa-induced acute lung injury, as assessed by lung wet-to-dry weight ratio, BAL protein levels, BAL inflammatory cell counts, pro-inflammatory cytokines, and pulmonary function (total lung volume, static lung compliance, tissue damping, and tissue elastance). Using both agonists and antagonists directed against adenosine receptors A2AR and A2BR, we further demonstrated that ENT1/2 blockade protected against P. aeruginosa -induced acute lung injury via activation of A2AR and A2BR. Additionally, ENT1/2 chemical inhibition and ENT1 knockout prevented P. aeruginosa-induced lung NLRP3 inflammasome activation. Finally, inhibition of inflammasome prevented P. aeruginosa-induced acute lung injury. Our results suggest that targeting ENT1/2 and NLRP3 inflammasome may be novel strategies for prevention and treatment of P. aeruginosa-induced pneumonia and subsequent ARDS.
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Affiliation(s)
- Eboni D. Chambers
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
| | - Alexis White
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
| | - Alexander Vang
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
| | - Zhengke Wang
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
| | - Alfred Ayala
- Division of Surgical Research, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, RI 02908
| | - Tingting Weng
- Departments of Biochemistry and Molecular Biology, University of Texas-Houston Medical School, Houston, TX 77030
| | - Michael Blackburn
- Departments of Biochemistry and Molecular Biology, University of Texas-Houston Medical School, Houston, TX 77030
| | - Gaurav Choudhary
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
| | - Sharon Rounds
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
| | - Qing Lu
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Alpert Medical School of Brown University, Providence, RI 02908
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Pulmonary Endothelial Cell Apoptosis in Emphysema and Acute Lung Injury. ADVANCES IN ANATOMY EMBRYOLOGY AND CELL BIOLOGY 2019; 228:63-86. [PMID: 29288386 DOI: 10.1007/978-3-319-68483-3_4] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Apoptosis plays an essential role in homeostasis and pathogenesis of a variety of human diseases. Endothelial cells are exposed to various environmental and internal stress and endothelial apoptosis is a pathophysiological consequence of these stimuli. Pulmonary endothelial cell apoptosis initiates or contributes to progression of a number of lung diseases. This chapter will focus on the current understanding of the role of pulmonary endothelial cell apoptosis in the development of emphysema and acute lung injury (ALI) and the factors controlling pulmonary endothelial life and death.
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8
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Strewe C, Zeller R, Feuerecker M, Hoerl M, Matzel S, Kumprej I, Crispin A, Johannes B, Debevec T, Mekjavic IB, Eiken O, Thiel M, Schelling G, Choukèr A. PlanHab Study: Consequences of combined normobaric hypoxia and bed rest on adenosine kinetics. Sci Rep 2018; 8:1762. [PMID: 29379127 PMCID: PMC5788919 DOI: 10.1038/s41598-018-20045-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 12/20/2017] [Indexed: 12/24/2022] Open
Abstract
Adenosine plays a role in the energy supply of cells and provokes differential, hormone-like functions in circulating cells and various tissues. Its release is importantly regulated by oxygen tension. This renders adenosine and its kinetics interesting to investigate in humans subjected to low oxygen conditions. Especially for space exploration scenarios, hypoxic conditions - together with reduced gravity - represent two foreseen living conditions when planning manned long-duration space missions or planetary habitats. The PlanHab study investigated microgravity through inactivity in bed rest and normobaric hypoxia to examine their independent or combined effect on adenosine and its kinetics. Healthy male subjects (n = 14) completed three 21-day interventions: hypoxic bed rest (HBR); hypoxic ambulatory confinement (HAMB); normoxic bed rest (NBR). The interventions were separated by 4 months. Our hypothesis of a hypoxia-triggered increase in adenosine was confirmed in HAMB but unexpectedly also in NBR. However, the highest adenosine levels were noted following HBR. Furthermore, the percentage of hemolysis was elevated in HBR whereas endothelial integrity markers stayed low in all three interventions. In summary, these data suggest that neocytolysis accounts for these effects while we could reduce evidence for microcirculatory changes.
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Affiliation(s)
- C Strewe
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany
| | - R Zeller
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany
| | - M Feuerecker
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany
| | - M Hoerl
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany
| | - S Matzel
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany
| | - I Kumprej
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany.,Department of Automation, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia
| | - A Crispin
- Institute for Medical Information Processing, Biometry and Epidemiology, Klinikum Großhadern, University of Munich, Munich, Germany
| | - B Johannes
- Division of Space Physiology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - T Debevec
- Department of Automation, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia.,Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| | - I B Mekjavic
- Department of Automation, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia.,Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
| | - O Eiken
- Department of Environmental Physiology, Swedish Aerospace Physiology Center, School of Technology and Health, Royal Institute of Technology, Stockholm, Sweden
| | - M Thiel
- Department of Anaesthesiology and Surgical Intensive Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany
| | - G Schelling
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany
| | - A Choukèr
- Department of Anaesthesiology, University Hospital, LMU Munich, Laboratory of Translational Research "Stress and Immunity", Munich, Germany.
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Vector-independent transmembrane transport of oligodeoxyribonucleotides involves p38 mitogen activated protein kinase phosphorylation. Sci Rep 2017; 7:13571. [PMID: 29051621 PMCID: PMC5648841 DOI: 10.1038/s41598-017-14099-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 10/02/2017] [Indexed: 11/20/2022] Open
Abstract
The main roles of equilibrative nucleoside transporters (ENTs) and concentrative nucleoside transporters (CNTs) are to transfer single nucleosides and analogues for the nucleic acid salvage pathway. Oligodeoxyribonucleotides (ODNs) can be transported into the cytoplasm or nucleus of cells under certain conditions. Among ODNs composed of a single type of nucleotide, the transport efficiency differs with the length and nucleotide composition of the ODNs and varies in different types of leukaemia cells; among the 5 tested random sequence ODNs and 3 aptamers with varying sequences, the data showed that some sequences were associated with significantly higher transport efficiency than others. The transport of ODNs was sodium, energy, and pH-independent, membrane protein-dependent, substrate nonspecific for ODNs and 4-nitrobenzylthioinosine (NBMPR)-insensitive, but it showed a low sensitivity to dipyridamole (IC50 = 35.44 µmol/L), distinguishing it from ENT1-4 and CNTs. The delivery efficiency of ODNs was superior to that of Lipofection and Nucleofection, demonstrating its potential applications in research or therapeutics. Moreover, this process was associated with p38 mitogen activated protein kinase (p38MAPK) instead of c-Jun N-terminal kinase (JNK) signalling pathways. We have denoted ODN transmembrane transport as equilibrative nucleic acid transport (ENAT). Overall, these findings indicate a new approach and mechanism for transmembrane transport of ODNs.
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Guo C, Goodwin A, Buie JNJ, Cook J, Halushka P, Argraves K, Zingarelli B, Zhang X, Wang L, Fan H. A Stromal Cell-Derived Factor 1α Analogue Improves Endothelial Cell Function in Lipopolysaccharide-Induced Acute Respiratory Distress Syndrome. Mol Med 2016; 22:115-123. [PMID: 27031787 DOI: 10.2119/molmed.2015.00240] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 03/02/2016] [Indexed: 12/19/2022] Open
Abstract
Endothelial cell (EC) dysfunction is a critical mediator of the acute respiratory distress syndrome (ARDS). Recent studies have demonstrated that stromal cell-derived factor 1α (SDF-1α) promotes EC barrier integrity. Our previous studies used a SDF-1α analogue CTCE-0214 (CTCE) in experimental sepsis and demonstrated that it attenuated vascular leak and modulated microRNA (miR) levels. We examined the hypothesis that CTCE improves EC function in lipopolysaccharide (LPS)-induced ARDS through increasing miR-126 expression. Human microvascular endothelial cells (HMVECs) were treated with thrombin to disrupt the EC integrity followed by incubation with CTCE or SDF-1α. Barrier function was determined by trans-endothelial electrical resistance assay. CTCE-induced alterations in miRNA expression and signaling pathways involved in barrier function were determined. Thrombin-induced vascular leak was abrogated by both CTCE and SDF-1α. CTCE also prevented thrombin-induced decreases of vascular endothelial (VE)-cadherin cell surface expression and expansion of the intercellular space. CTCE increased miR-126 levels and induced activation of AKT/Rac 1 signaling. Cotreatment with a miR-126 inhibitor blocked the protective effects of CTCE on AKT activation and endothelial permeability. In subsequent in vivo studies, ARDS was induced by intratracheal instillation of LPS. Intravenous injection of CTCE diminished the injury severity as evidenced by significant reductions in protein, immune cells, inflammatory cytokines and chemokines in the bronchoalveolar lavage fluid, increased miR-126 expression and decreased pulmonary vascular leak and alveolar edema. Taken together, our data show that CTCE improves endothelial barrier integrity through increased expression of miR-126 and activation of Rac 1 signaling and represents an important potential therapeutic strategy in ARDS.
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Affiliation(s)
- Changrun Guo
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, United States of America.,College of Life Science, Jilin University, Changchun, China
| | - Andrew Goodwin
- Pulmonary, Critical Care, Allergy, and Sleep Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Joy N Jones Buie
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - James Cook
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Perry Halushka
- Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America.,Pharmacology, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Kelley Argraves
- Regenerative Medicine and Cell Biology; Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Basilia Zingarelli
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Xian Zhang
- Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Liping Wang
- College of Life Science, Jilin University, Changchun, China
| | - Hongkuan Fan
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, United States of America.,Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
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11
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Baron L, Gombault A, Fanny M, Villeret B, Savigny F, Guillou N, Panek C, Le Bert M, Lagente V, Rassendren F, Riteau N, Couillin I. The NLRP3 inflammasome is activated by nanoparticles through ATP, ADP and adenosine. Cell Death Dis 2015; 6:e1629. [PMID: 25654762 PMCID: PMC4669808 DOI: 10.1038/cddis.2014.576] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 11/28/2014] [Accepted: 12/03/2014] [Indexed: 12/11/2022]
Abstract
The NLR pyrin domain containing 3 (NLRP3) inflammasome is a major component of the innate immune system, but its mechanism of activation by a wide range of molecules remains largely unknown. Widely used nano-sized inorganic metal oxides such as silica dioxide (nano-SiO2) and titanium dioxide (nano-TiO2) activate the NLRP3 inflammasome in macrophages similarly to silica or asbestos micro-sized particles. By investigating towards the molecular mechanisms of inflammasome activation in response to nanoparticles, we show here that active adenosine triphosphate (ATP) release and subsequent ATP, adenosine diphosphate (ADP) and adenosine receptor signalling are required for inflammasome activation. Nano-SiO2 or nano-TiO2 caused a significant increase in P2Y1, P2Y2, A2A and/or A2B receptor expression, whereas the P2X7 receptor was downregulated. Interestingly, IL-1β secretion in response to nanoparticles is increased by enhanced ATP and ADP hydrolysis, whereas it is decreased by adenosine degradation or selective A2A or A2B receptor inhibition. Downstream of these receptors, our results show that nanoparticles activate the NLRP3 inflammasome via activation of PLC-InsP3 and/or inhibition of adenylate cyclase (ADCY)-cAMP pathways. Finally, a high dose of adenosine triggers inflammasome activation and IL-1β secretion through adenosine cellular uptake by nucleotide transporters and by its subsequent transformation in ATP by adenosine kinase. In summary, we show for the first time that extracellular adenosine activates the NLRP3 inflammasome by two ways: by interacting with adenosine receptors at nanomolar/micromolar concentrations and through cellular uptake by equilibrative nucleoside transporters at millimolar concentrations. These findings provide new molecular insights on the mechanisms of NLRP3 inflammasome activation and new therapeutic strategies to control inflammation.
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Affiliation(s)
- L Baron
- INEM, CNRS, UMR7355, University of Orleans, France
| | - A Gombault
- INEM, CNRS, UMR7355, University of Orleans, France
| | - M Fanny
- INEM, CNRS, UMR7355, University of Orleans, France
| | - B Villeret
- INEM, CNRS, UMR7355, University of Orleans, France
| | - F Savigny
- INEM, CNRS, UMR7355, University of Orleans, France
| | - N Guillou
- INEM, CNRS, UMR7355, University of Orleans, France
| | - C Panek
- INEM, CNRS, UMR7355, University of Orleans, France
| | - M Le Bert
- INEM, CNRS, UMR7355, University of Orleans, France
| | - V Lagente
- INSERM U991, University of Rennes, France
| | - F Rassendren
- IGF, CNRS, UMR 5203 and INSERM U661, University of Montpellier, France
| | - N Riteau
- INEM, CNRS, UMR7355, University of Orleans, France
| | - I Couillin
- INEM, CNRS, UMR7355, University of Orleans, France
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12
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Zuo L, He F, Sergakis GG, Koozehchian MS, Stimpfl JN, Rong Y, Diaz PT, Best TM. Interrelated role of cigarette smoking, oxidative stress, and immune response in COPD and corresponding treatments. Am J Physiol Lung Cell Mol Physiol 2014; 307:L205-18. [DOI: 10.1152/ajplung.00330.2013] [Citation(s) in RCA: 163] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cigarette smoking (CS) can impact the immune system and induce pulmonary disorders such as chronic obstructive pulmonary disease (COPD), which is currently the fourth leading cause of chronic morbidity and mortality worldwide. Accordingly, the most significant risk factor associated with COPD is exposure to cigarette smoke. The purpose of the present study is to provide an updated overview of the literature regarding the effect of CS on the immune system and lungs, the mechanism of CS-induced COPD and oxidative stress, as well as the available and potential treatment options for CS-induced COPD. An extensive literature search was conducted on the PubMed/Medline databases to review current COPD treatment research, available in the English language, dating from 1976 to 2014. Studies have investigated the mechanism by which CS elicits detrimental effects on the immune system and pulmonary function through the use of human and animal subjects. A strong relationship among continued tobacco use, oxidative stress, and exacerbation of COPD symptoms is frequently observed in COPD subjects. In addition, therapeutic approaches emphasizing smoking cessation have been developed, incorporating counseling and nicotine replacement therapy. However, the inability to reverse COPD progression establishes the need for improved preventative and therapeutic strategies, such as a combination of intensive smoking cessation treatment and pharmaceutical therapy, focusing on immune homeostasis and redox balance. CS initiates a complex interplay between oxidative stress and the immune response in COPD. Therefore, multiple approaches such as smoking cessation, counseling, and pharmaceutical therapies targeting inflammation and oxidative stress are recommended for COPD treatment.
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Affiliation(s)
- Li Zuo
- Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Feng He
- Department of Health and Kinesiology, Purdue University, Lafayette, Indiana
| | - Georgianna G. Sergakis
- Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Majid S. Koozehchian
- Exercise and Sport Nutrition Laboratory, Department of Health & Kinesiology, Texas A&M University, College Station, Texas
| | - Julia N. Stimpfl
- Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Yi Rong
- Department of Radiation Oncology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio; and
| | - Philip T. Diaz
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Thomas M. Best
- Division of Sports Medicine, Department of Family Medicine, Sports Health & Performance Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio
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13
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Duluc L, Wojciak-Stothard B. Rho GTPases in the regulation of pulmonary vascular barrier function. Cell Tissue Res 2014; 355:675-85. [PMID: 24599334 DOI: 10.1007/s00441-014-1805-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 01/10/2014] [Indexed: 12/12/2022]
Abstract
Pulmonary endothelial permeability is an important determinant of vascular adaptation to changes in oxygen tension, blood pressure, levels of growth factors or inflammatory cytokines. The Ras homologous (Rho) family of guanosine triphosphate phosphatases (Rho GTPases), key regulators of the actin cytoskeleton, regulate endothelial barrier function in response to a variety of environmental factors and signalling agents via the reorganization of the actin cytoskeleton, changes in receptor trafficking or the phosphorylation of junctional proteins. This review provides a brief summary of recent knowledge on Rho-GTPase-mediated effects on pulmonary endothelial barrier function and focuses in particular on their role in pulmonary vascular disorders, including pulmonary hypertension, chronic obstructive pulmonary disease, acute lung injury and acute respiratory distress syndrome.
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Affiliation(s)
- Lucie Duluc
- Centre for Pharmacology & Therapeutics, Imperial College London, London, UK
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14
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Lu Q, Sakhatskyy P, Newton J, Shamirian P, Hsiao V, Curren S, Gabino Miranda GA, Pedroza M, Blackburn MR, Rounds S. Sustained adenosine exposure causes lung endothelial apoptosis: a possible contributor to cigarette smoke-induced endothelial apoptosis and lung injury. Am J Physiol Lung Cell Mol Physiol 2013; 304:L361-70. [PMID: 23316066 DOI: 10.1152/ajplung.00161.2012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Pulmonary endothelial cell (EC) apoptosis has been implicated in the pathogenesis of emphysema. Cigarette smoke (CS) causes lung EC apoptosis and emphysema. In this study, we show that CS exposure increased lung tissue adenosine levels in mice, an effect associated with increased lung EC apoptosis and the development of emphysema. Adenosine has a protective effect against apoptosis via adenosine receptor-mediated signaling. However, sustained elevated adenosine increases alveolar cell apoptosis in adenosine deaminase-deficient mice. We established an in vitro model of sustained adenosine exposure by incubating lung EC with adenosine in the presence of an adenosine deaminase inhibitor, deoxycoformicin. We demonstrated that sustained adenosine exposure caused lung EC apoptosis via nucleoside transporter-facilitated intracellular adenosine uptake, subsequent activation of p38 and JNK in mitochondria, and ultimately mitochondrial defects and activation of the mitochondria-mediated intrinsic pathway of apoptosis. Our results suggest that sustained elevated adenosine may contribute to CS-induced lung EC apoptosis and emphysema. Our data also reconcile the paradoxical effects of adenosine on apoptosis, demonstrating that prolonged exposure causes apoptosis via nucleoside transporter-mediated intracellular adenosine signaling, whereas acute exposure protects against apoptosis via activation of adenosine receptors. Inhibition of adenosine uptake may become a new therapeutic target in treatment of CS-induced lung diseases.
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Affiliation(s)
- Qing Lu
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Department of Medicine, Alpert Medical School of Brown University, Providence, RI 02908, USA.
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