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Zhang Y, Li Q, Shi Z, Li Q, Dai X, Pan C, Ma Y, Yan R, Fei D, Xie J. A novel growth-friendly system alleviates pulmonary dysplasia in early-onset scoliosis combined with thoracic insufficiency syndrome: Radiological, pathological, and transcriptomic assessments. Heliyon 2024; 10:e27887. [PMID: 38509966 PMCID: PMC10951595 DOI: 10.1016/j.heliyon.2024.e27887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
Background The posterior procedure utilizing growth-friendly techniques is the golden standard for patients with early-onset scoliosis combined with thoracic insufficiency syndrome (EOS + TIS). Pulmonary hypoplasia is the main cause of dying prematurely in the EOS + TIS. This study assessed the therapeutic impact of a novel growth-friendly system on the pulmonary development of piglet's EOS + TIS model. Methods The animal procedure period lasts 12 weeks, of which the construction of the EOS + TIS was performed at 0-8 weeks, and implantation of a novel growth-friendly system was applied at 8-12 weeks. During the animal procedure, X-rays and CT were performed to observe scoliosis, thorax, and lungs. After 12 weeks, pathological changes in lung tissue were assessed using HE and IHC staining. RNA-seq characterized novel growth-friendly system-associated differentially expressed genes (DEGs) and validated using RT-qPCR, western blotting, and IHC. Results Implantation of the novel growth-friendly system increased body weight, body length, and total lung volume, as well as decreased the coronal and sagittal Cobb angles for the EOS + TIS model. It also ameliorated EOS + TIS-induced thickening of the alveolar wall, increased alveolar spaces, and decreased alveolar number and diameter. In lung tissue, a total of 790 novel growth-friendly system-associated DEGs were identified, and they were mainly involved in the regulation of immune, inflammatory, calcium transport, and vascular development. Among these DEGs, BDKRB1, THBS1, DUSP1, IDO1, and SPINK5 were hub genes, and their differential expression was consistent with RNA-seq results in lung tissues. Conclusion The novel growth-friendly system has mitigated scoliosis and pulmonary hypoplasia in the EOS + TIS model. We further elucidate the molecular mechanisms underlying the amelioration of pulmonary hypoplasia.
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Affiliation(s)
- Ying Zhang
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Quan Li
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Zhiyue Shi
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Qitang Li
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Xinfei Dai
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Cheng Pan
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Yujian Ma
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Rongshuang Yan
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Derui Fei
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
| | - Jingming Xie
- Department of Orthopaedics, the Second Affiliated Hospital of Kunming Medical University, China
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2
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Wang Y, Huang H, Weng H, Jia C, Liao B, Long Y, Yu F, Nie Y. Talin mechanotransduction in disease. Int J Biochem Cell Biol 2024; 166:106490. [PMID: 37914021 DOI: 10.1016/j.biocel.2023.106490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023]
Abstract
Talin protein (Talin 1/2) is a mechanosensitive cytoskeleton protein. The unique structure of the Talin plays a vital role in transmitting mechanical forces. Talin proteins connect the extracellular matrix to the cytoskeleton by linking to integrins and actin, thereby mediating the conversion of mechanical signals into biochemical signals and influencing disease progression as potential diagnostic indicators, therapeutic targets, and prognostic indicators of various diseases. Most studies in recent years have confirmed that mechanical forces also have a crucial role in the development of disease, and Talin has been found to play a role in several diseases. Still, more studies need to be done on how Talin is involved in mechanical signaling in disease. This review focuses on the mechanical signaling of Talin in disease, aiming to summarize the mechanisms by which Talin plays a role in disease and to provide references for further studies.
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Affiliation(s)
- Yingzi Wang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Haozhong Huang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Huimin Weng
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Chunsen Jia
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Bin Liao
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, China; Key Laboratory of Cardiovascular Remodeling and Dysfunction, Luzhou, China
| | - Yang Long
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, Luzhou, China; Sichuan Clinical Research Center for Nephropathy, Luzhou, China
| | - Fengxu Yu
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, China; Key Laboratory of Cardiovascular Remodeling and Dysfunction, Luzhou, China
| | - Yongmei Nie
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, China; Key Laboratory of Cardiovascular Remodeling and Dysfunction, Luzhou, China.
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3
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Tanneberger AE, Weiss DJ, Magin CM. An Introduction to Engineering and Modeling the Lung. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1413:1-13. [PMID: 37195523 DOI: 10.1007/978-3-031-26625-6_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Over the last decade, the field of lung biology has evolved considerably due to many advancements, including the advent of single-cell RNA (scRNA) sequencing, induced pluripotent stem cell (iPSC) reprogramming, and 3D cell and tissue culture. Despite rigorous research and tireless efforts, chronic pulmonary diseases remain the third leading cause of death globally, with transplantation being the only option for treating end-stage disease. This chapter will introduce the broader impacts of understanding lung biology in health and disease, provide an overview of lung physiology and pathophysiology, and summarize the key takeaways from each chapter describing engineering translational models of lung homeostasis and disease. This book is divided into broad topic areas containing chapters covering basic biology, engineering approaches, and clinical perspectives related to (1) the developing lung, (2) the large airways, (3) the mesenchyme and parenchyma, (4) the pulmonary vasculature, and (5) the interface between lungs and medical devices. Each section highlights the underlying premise that engineering strategies, when applied in collaboration with cell biologists and pulmonary physicians, will address critical challenges in pulmonary health care.
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Affiliation(s)
- Alicia E Tanneberger
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, Aurora, CO, USA
| | - Daniel J Weiss
- Department of Medicine, University of Vermont, Larner College of Medicine, Burlington, VT, USA
| | - Chelsea M Magin
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, Aurora, CO, USA.
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.
- Department of Pediatrics, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.
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4
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Peak KE, Mohr-Allen SR, Gleghorn JP, Varner VD. Focal sources of FGF-10 promote the buckling morphogenesis of the embryonic airway epithelium. Biol Open 2022; 11:bio059436. [PMID: 35979841 PMCID: PMC9536751 DOI: 10.1242/bio.059436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/11/2022] [Indexed: 12/01/2022] Open
Abstract
During airway branching morphogenesis, focal regions of FGF-10 expression in the pulmonary mesenchyme are thought to provide a local guidance cue, which promotes chemotactically the directional outgrowth of the airway epithelium. Here, however, we show that an ectopic source of FGF-10 induces epithelial buckling morphogenesis and the formation of multiple new supernumerary buds. FGF-10-induced budding can be modulated by altered epithelial tension and luminal fluid pressure. Increased tension suppresses the formation of ectopic branches, while a collapse of the embryonic airway promotes more expansive buckling and additional FGF-10-induced supernumerary buds. Our results indicate that a focal source of FGF-10 can promote epithelial buckling and suggest that the overall branching pattern cannot be explained entirely by the templated expression of FGF-10. Both FGF-10-mediated cell behaviors and exogenous mechanical forces must be integrated to properly shape the bronchial tree.
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Affiliation(s)
- Kara E Peak
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Shelby R Mohr-Allen
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Jason P Gleghorn
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
| | - Victor D Varner
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX 75390, USA
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5
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Stanton AE, Goodwin K, Sundarakrishnan A, Jaslove JM, Gleghorn JP, Pavlovich AL, Nelson CM. Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10. Front Cell Dev Biol 2021; 9:725785. [PMID: 34926440 PMCID: PMC8673560 DOI: 10.3389/fcell.2021.725785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 10/29/2021] [Indexed: 11/13/2022] Open
Abstract
Mechanical forces are increasingly recognized as important determinants of cell and tissue phenotype and also appear to play a critical role in organ development. During the fetal stages of lung morphogenesis, the pressure of the fluid within the lumen of the airways is higher than that within the chest cavity, resulting in a positive transpulmonary pressure. Several congenital defects decrease or reverse transpulmonary pressure across the developing airways and are associated with a reduced number of branches and a correspondingly underdeveloped lung that is insufficient for gas exchange after birth. The small size of the early pseudoglandular stage lung and its relative inaccessibility in utero have precluded experimental investigation of the effects of transpulmonary pressure on early branching morphogenesis. Here, we present a simple culture model to explore the effects of negative transpulmonary pressure on development of the embryonic airways. We found that negative transpulmonary pressure decreases branching, and that it does so in part by altering the expression of fibroblast growth factor 10 (Fgf10). The morphogenesis of lungs maintained under negative transpulmonary pressure can be rescued by supplementing the culture medium with exogenous FGF10. These data suggest that Fgf10 expression is regulated by mechanical stress in the developing airways. Understanding the mechanical signaling pathways that connect transpulmonary pressure to FGF10 can lead to the establishment of novel non-surgical approaches for ameliorating congenital lung defects.
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Affiliation(s)
- Alice E Stanton
- Department of Chemical & Biological Engineering, Princeton University, Princeton, NJ, United States
| | - Katharine Goodwin
- Lewis Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, United States
| | - Aswin Sundarakrishnan
- Department of Chemical & Biological Engineering, Princeton University, Princeton, NJ, United States
| | - Jacob M Jaslove
- Department of Molecular Biology, Princeton University, Princeton, NJ, United States
| | - Jason P Gleghorn
- Department of Chemical & Biological Engineering, Princeton University, Princeton, NJ, United States
| | - Amira L Pavlovich
- Department of Chemical & Biological Engineering, Princeton University, Princeton, NJ, United States
| | - Celeste M Nelson
- Department of Chemical & Biological Engineering, Princeton University, Princeton, NJ, United States.,Department of Molecular Biology, Princeton University, Princeton, NJ, United States
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6
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Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
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Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
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7
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Dobrinskikh E, Al-Juboori SI, Shabeka U, Reisz JA, Zheng C, Marwan AI. Heterogeneous Pulmonary Response After Tracheal Occlusion: Clues to Fetal Lung Growth. J Surg Res 2019; 239:242-252. [PMID: 30856517 DOI: 10.1016/j.jss.2019.02.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 01/15/2019] [Accepted: 02/06/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Understanding inconsistent clinical outcomes in infants with severe congenital diaphragmatic hernia (CDH) after tracheal occlusion (TO) is a crucial step for advancing neonatal care. The objective of this study is to explore the heterogeneous airspace morphometry and the metabolic landscape changes in fetal lungs after TO. METHODS Fetal lungs on days 1 and 4 after TO were examined using mass spectrometry-based metabolomics, fluorescence lifetime imaging microscopy (FLIM), the number of airspaces, and tissue-to-airspace ratio (TAR). RESULTS Two morphometric areas were identified in TO lungs compared with controls (more small airspaces at day 1 and a higher number of enlarged airspaces at day 4). Global metabolomics analysis revealed a significant upregulation of glycolysis and a suppression of the tricarboxylic acid cycle in day 4 TO lungs compared with day 1 TO lungs. In addition, there was a significant increase in polyamines involved in cell growth and proliferation. Locally, FLIM analysis on day 1 TO lungs demonstrated two types of heterogeneous zones-similar to control and with increased oxidative phosphorylation. FLIM on day 4 TO lungs demonstrated appearance of zones with enlarged airspaces and a metabolic shift toward glycolysis, accompanied by a decrease in the FLIM "lipid-surfactant" signal. CONCLUSIONS In normal fetal lungs, we report a novel temporal pattern of varied morphometric and metabolic changes. Initially, there is formation of zones with small airspaces, followed by airspace enlargement over time. Metabolically day 1 TO lungs have zones with increased oxidative phosphorylation, whereas day 4 TO lungs have a shift toward glycolysis in the enlarged airspaces. Based on our observations, we speculate that the "best responders" to tracheal occlusion should have bigger lungs with small airspaces and normal surfactant production.
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Affiliation(s)
- Evgenia Dobrinskikh
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Saif I Al-Juboori
- Division of Pediatric Surgery, Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Uladzimir Shabeka
- Division of Pediatric Surgery, Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado
| | - Connie Zheng
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado
| | - Ahmed I Marwan
- Division of Pediatric Surgery, Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado.
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8
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Rodríguez-Castillo JA, Pérez DB, Ntokou A, Seeger W, Morty RE, Ahlbrecht K. Understanding alveolarization to induce lung regeneration. Respir Res 2018; 19:148. [PMID: 30081910 PMCID: PMC6090695 DOI: 10.1186/s12931-018-0837-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 07/02/2018] [Indexed: 02/06/2023] Open
Abstract
Background Gas exchange represents the key physiological function of the lung, and is dependent upon proper formation of the delicate alveolar structure. Malformation or destruction of the alveolar gas-exchange regions are key histopathological hallmarks of diseases such as bronchopulmonary dysplasia (BPD), chronic obstructive pulmonary disease (COPD), and pulmonary fibrosis; all of which are characterized by perturbations to the alveolo-capillary barrier structure. Impaired gas-exchange is the primary initial consequence of these perturbations, resulting in severe clinical symptoms, reduced quality of life, and death. The pronounced morbidity and mortality associated with malformation or destruction of alveoli underscores a pressing need for new therapeutic concepts. The re-induction of alveolarization in diseased lungs is a new and exciting concept in a regenerative medicine approach to manage pulmonary diseases that are characterized by an absence of alveoli. Main text Mechanisms of alveolarization first need to be understood, to identify pathways and mediators that may be exploited to drive the induction of alveolarization in the diseased lung. With this in mind, a variety of candidate cell-types, pathways, and molecular mediators have recently been identified. Using lineage tracing approaches and lung injury models, new progenitor cells for epithelial and mesenchymal cell types – as well as cell lineages which are able to acquire stem cell properties – have been discovered. However, the underlying mechanisms that orchestrate the complex process of lung alveolar septation remain largely unknown. Conclusion While important progress has been made, further characterization of the contributing cell-types, the cell type-specific molecular signatures, and the time-dependent chemical and mechanical processes in the developing, adult and diseased lung is needed in order to implement a regenerative therapeutic approach for pulmonary diseases.
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Affiliation(s)
- José Alberto Rodríguez-Castillo
- Member of the German Lung Research Center (DZL), Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Parkstrasse 1, 61231, Bad Nauheim, Germany
| | - David Bravo Pérez
- Member of the German Lung Research Center (DZL), Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Parkstrasse 1, 61231, Bad Nauheim, Germany
| | - Aglaia Ntokou
- Member of the German Lung Research Center (DZL), Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Parkstrasse 1, 61231, Bad Nauheim, Germany
| | - Werner Seeger
- Member of the German Lung Research Center (DZL), Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Parkstrasse 1, 61231, Bad Nauheim, Germany.,Member of the German Lung Research Center (DZL), Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Klinistrasse 33, 35392, Giessen, Germany
| | - Rory E Morty
- Member of the German Lung Research Center (DZL), Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Parkstrasse 1, 61231, Bad Nauheim, Germany.,Member of the German Lung Research Center (DZL), Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Klinistrasse 33, 35392, Giessen, Germany
| | - Katrin Ahlbrecht
- Member of the German Lung Research Center (DZL), Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Parkstrasse 1, 61231, Bad Nauheim, Germany. .,Member of the German Lung Research Center (DZL), Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Klinistrasse 33, 35392, Giessen, Germany.
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