1
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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 2024:10.1007/s10456-024-09910-2. [PMID: 38580869 DOI: 10.1007/s10456-024-09910-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 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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Zhao L, Peng J, Zhuang L, Yan Z, Liao F, Wang Y, Shao S, Wang W. MiR-155 promotes compensatory lung growth by inhibiting JARID2 activation of CD34+ endothelial progenitor cells. PLoS One 2024; 19:e0296671. [PMID: 38394221 PMCID: PMC10890733 DOI: 10.1371/journal.pone.0296671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/13/2023] [Indexed: 02/25/2024] Open
Abstract
Bone marrow-derived CD34-positive (CD34+) endothelial progenitor cells (EPCs) has unique functions in the mechanism of compensatory lung growth (CLG). The content of this study is mainly to describe the effect of microRNA (miR)-155 in the mechanisms of EPCs and CLG. Our study found that transfection of miR-155 mimic could promote EPC proliferation, migration and tube formation, while transfection of miR-155 inhibitor had the opposite effect. It was also found that transfection of pc-JARID2 inhibited EPC proliferation, migration and tube formation, while transfection of si-JARID2 had the opposite effect. miR-155 can target and negatively regulate JARID2 expression. Overexpression of JARID2 weakened the promoting effects of miR-155 mimic on EPC proliferation, migration, and tubular formation, while silencing JARID2 weakened the inhibitory effects of miR-155 inhibitors on EPC proliferation, migration, and tubular formation. Transplantation of EPCs transfected with miR-155 mimic into the left lung model effectively increased lung volume, total alveolar number, diaphragm surface area, and lung endothelial cell number, while transplantation of EPCs co-transfected with miR-155 mimic and pc-JARID2 reversed this phenomenon. Overall, we found that miR-155 activates CD34+ EPC by targeting negative regulation of JARID2 and promotes CLG.
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Affiliation(s)
- Li Zhao
- Department of Anesthesiology, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Jing Peng
- Department of Anesthesiology, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Li Zhuang
- Department of Palliative Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Zhiling Yan
- Department of Gynaecologic Oncology, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Fei Liao
- Department of Anesthesiology, The 6th Affiliated Hospital of Kunming Medical University (The People’s Hospital of Yuxi City), Yuxi, 653100, Yunnan, China
| | - Yifan Wang
- Department of Anesthesiology, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Shihao Shao
- Department of Anesthesiology, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Weiwei Wang
- Department of Thoracic Surgery Ⅱ, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
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3
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Chamoto K, Gibney BC, Wagner WL, Ackermann M, Khalil HA, Mentzer SJ. Vascularization of the adult mouse lung grafted onto the chick chorioallantoic membrane. Microvasc Res 2024; 151:104596. [PMID: 37625620 DOI: 10.1016/j.mvr.2023.104596] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023]
Abstract
In the later stages of angiogenesis, the vascular sprout transitions into a functional vessel by fusing with a target vessel. Although this process appears to routinely occur in embryonic tissue, the biologic rules for sprout fusion and lumenization in adult regenerating tissue are unknown. To investigate this process, we grafted portions of the regenerating post-pneumonectomy lung onto the chick chorioallantoic membrane (CAM). Grafts from all 4 lobes of the post-pneumonectomy right lung demonstrated peri-graft angiogenesis as reflected by fluorescent plasma markers; however, fluorescent microsphere perfusion primarily occurred in the lobe of the lung that is the dominant site of post-pneumonectomy angiogenesis-namely, the cardiac lobe. Vascularization of the cardiac lobe grafts was confirmed by active tissue growth (p < .05). Functional vascular connections between the cardiac lobe and the CAM vascular network were demonstrated by confocal fluorescence microscopy as well as corrosion casting and scanning electron microscopy (SEM). Bulk transcriptional profiling of the cardiac lobe demonstrated the enhanced expression of many genes relative to alveolar epithelial cell (CD11b-/CD31-) control cells, but only the upregulation of Ereg and Fgf6 compared to the less well-vascularized right upper lobe. The growth of actively regenerating non-neoplastic adult tissue on the CAM demonstrates that functional lumenization can occur between species (mouse and chick) and across the developmental spectrum (adult and embryo).
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Affiliation(s)
- Kenji Chamoto
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Barry C Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Willi L Wagner
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Hassan A Khalil
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, United States of America.
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4
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Kojima H, Ishii T, Fukumitsu K, Ogiso S, Tomofuji K, Oshima Y, Horie H, Ito T, Wakama S, Makino K, Hatano E. In Vivo Regeneration of Tubular Small Intestine With Motility: A Novel Approach by Orthotopic Transplantation of Decellularized Scaffold. Transplantation 2023; 107:1955-1964. [PMID: 36749289 DOI: 10.1097/tp.0000000000004522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Whole-intestine engineering can provide a therapeutic alternative to bowel transplantation. Intestinal components including the mucosa, muscular layer, enteric nervous system, and vasculature must be reestablished as a tubular organ to generate an artificial small intestine. This study proposes a novel approach to produce a transplantable, well-organized tubular small intestine using a decellularized scaffold. METHODS Male Lewis rat intestines were used to generate decellularized scaffolds. Patch or tubular grafts were prepared from the decellularized intestine and transplanted into the rat intestine orthotopically. Histological analysis of the decellularized intestine was performed up to 12 wk after transplantation. RESULTS Histological examination revealed abundant vascularization into the decellularized patch graft 1 wk after transplantation. Muscular and nervous components, as well as cryptogenesis, were observed in the decellularized patch graft 2 wk after transplantation. Sixteen of the 18 rats survived with normal intake of food and water after the decellularized tubular graft transplantation. Compared with silicone tube grafts, the decellularized tubular grafts significantly promoted the infiltration and growth of intestinal components including the mucosa, muscular layer, and nerve plexus from the recipients. Circular and longitudinal muscle with a well-developed myenteric plexus was regenerated, and intestinal motility was confirmed in the decellularized tubular graft 12 wk after transplantation. CONCLUSIONS Orthotopic transplantation of decellularized intestine enhanced the reconstruction of the well-organized tubular small intestine with an enteric nervous system in vivo. Our method using a decellularized scaffold represents a promising approach toward whole-intestine engineering and provides a therapeutic alternative for the irreversible intestinal failure.
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Affiliation(s)
- Hidenobu Kojima
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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5
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Rippa AL, Alpeeva EV, Vasiliev AV, Vorotelyak EA. Alveologenesis: What Governs Secondary Septa Formation. Int J Mol Sci 2021; 22:ijms222212107. [PMID: 34829987 PMCID: PMC8618598 DOI: 10.3390/ijms222212107] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 12/30/2022] Open
Abstract
The simplification of alveoli leads to various lung pathologies such as bronchopulmonary dysplasia and emphysema. Deep insight into the process of emergence of the secondary septa during development and regeneration after pneumonectomy, and into the contribution of the drivers of alveologenesis and neo-alveolarization is required in an efficient search for therapeutic approaches. In this review, we describe the formation of the gas exchange units of the lung as a multifactorial process, which includes changes in the actomyosin cytoskeleton of alveocytes and myofibroblasts, elastogenesis, retinoic acid signaling, and the contribution of alveolar mesenchymal cells in secondary septation. Knowledge of the mechanistic context of alveologenesis remains incomplete. The characterization of the mechanisms that govern the emergence and depletion of αSMA will allow for an understanding of how the niche of fibroblasts is changing. Taking into account the intense studies that have been performed on the pool of lung mesenchymal cells, we present data on the typing of interstitial fibroblasts and their role in the formation and maintenance of alveoli. On the whole, when identifying cell subpopulations in lung mesenchyme, one has to consider the developmental context, the changing cellular functions, and the lability of gene signatures.
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6
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Ysasi AB, Bennett RD, Wagner W, Valenzuela CD, Servais AB, Tsuda A, Pyne S, Li S, Grimsby J, Pokharel P, Livak KJ, Ackermann M, Blainey PC, Mentzer SJ. Single-Cell Transcriptional Profiling of Cells Derived From Regenerating Alveolar Ducts. Front Med (Lausanne) 2020; 7:112. [PMID: 32373614 PMCID: PMC7186418 DOI: 10.3389/fmed.2020.00112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 03/12/2020] [Indexed: 11/16/2022] Open
Abstract
Lung regeneration occurs in a variety of adult mammals after surgical removal of one lung (pneumonectomy). Previous studies of murine post-pneumonectomy lung growth have identified regenerative “hotspots” in subpleural alveolar ducts; however, the cell-types participating in this process remain unclear. To identify the single cells participating in post-pneumonectomy lung growth, we used laser microdissection, enzymatic digestion and microfluidic isolation. Single-cell transcriptional analysis of the murine alveolar duct cells was performed using the C1 integrated fluidic circuit (Fluidigm) and a custom PCR panel designed for lung growth and repair genes. The multi-dimensional data set was analyzed using visualization software based on the tSNE algorithm. The analysis identified 6 cell clusters; 1 cell cluster was present only after pneumonectomy. This post-pneumonectomy cluster was significantly less transcriptionally active than 3 other clusters and may represent a transitional cell population. A provisional cluster identity for 4 of the 6 cell clusters was obtained by embedding bulk transcriptional data into the tSNE analysis. The transcriptional pattern of the 6 clusters was further analyzed for genes associated with lung repair, matrix production, and angiogenesis. The data demonstrated that multiple cell-types (clusters) transcribed genes linked to these basic functions. We conclude that the coordinated gene expression across multiple cell clusters is likely a response to a shared regenerative microenvironment within the subpleural alveolar ducts.
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Affiliation(s)
- Alexandra B Ysasi
- Laboratory of Adaptive and Regenerative Biology, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, United States
| | - Robert D Bennett
- Laboratory of Adaptive and Regenerative Biology, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, United States
| | - Willi Wagner
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Cristian D Valenzuela
- Laboratory of Adaptive and Regenerative Biology, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, United States
| | - Andrew B Servais
- Laboratory of Adaptive and Regenerative Biology, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, United States
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA, United States
| | - Saumyadipta Pyne
- Public Health Dynamics Laboratory, University of Pittsburgh, Pittsburgh, PA, United States
| | - Shuqiang Li
- Fluidigm Corporation, South San Francisco, CA, United States
| | - Jonna Grimsby
- Broad Institute of Harvard and MIT, Cambridge, MA, United States
| | - Prapti Pokharel
- Broad Institute of Harvard and MIT, Cambridge, MA, United States
| | - Kenneth J Livak
- Fluidigm Corporation, South San Francisco, CA, United States
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Paul C Blainey
- Broad Institute of Harvard and MIT, Cambridge, MA, United States.,Department of Biological Engineering, MIT, Cambridge, MA, United States
| | - Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, United States
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7
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Dorrello NV, Vunjak-Novakovic G. Bioengineering of Pulmonary Epithelium With Preservation of the Vascular Niche. Front Bioeng Biotechnol 2020; 8:269. [PMID: 32351946 PMCID: PMC7174601 DOI: 10.3389/fbioe.2020.00269] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 03/16/2020] [Indexed: 12/20/2022] Open
Abstract
The shortage of transplantable donor organs directly affects patients with end-stage lung disease, for which transplantation remains the only definitive treatment. With the current acceptance rate of donor lungs of only 20%, rescuing even one half of the rejected donor lungs would increase the number of transplantable lungs threefold, to 60%. We review recent advances in lung bioengineering that have potential to repair the epithelial and vascular compartments of the lung. Our focus is on the long-term support and recovery of the lung ex vivo, and the replacement of defective epithelium with healthy therapeutic cells. To this end, we first review the roles of the lung epithelium and vasculature, with focus on the alveolar-capillary membrane, and then discuss the available and emerging technologies for ex vivo bioengineering of the lung by decellularization and recellularization. While there have been many meritorious advances in these technologies for recovering marginal quality lungs to the levels needed to meet the standards for transplantation – many challenges remain, motivating further studies of the extended ex vivo support and interventions in the lung. We propose that the repair of injured epithelium with preservation of quiescent vasculature will be critical for the immediate blood supply to the lung and the lung survival and function following transplantation.
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Affiliation(s)
- N Valerio Dorrello
- Department of Pediatrics, Columbia University, New York, NY, United States
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, NY, United States.,Department of Medicine, Columbia University, New York, NY, United States
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8
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Yanagihara T, Jones KD. Demystifying morphomolecular alterations of vasculature in interstitial lung diseases. Eur Respir J 2020; 55:55/3/1902446. [PMID: 32165424 DOI: 10.1183/13993003.02446-2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 01/06/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Toyoshi Yanagihara
- Firestone Institute for Respiratory Health, Research Institute at St Joseph's Healthcare, Dept of Medicine, McMaster University, Hamilton, ON, Canada .,Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kirk D Jones
- Dept of Pathology, University of California San Francisco, San Francisco, CA, USA
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9
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Ackermann M, Stark H, Neubert L, Schubert S, Borchert P, Linz F, Wagner WL, Stiller W, Wielpütz M, Hoefer A, Haverich A, Mentzer SJ, Shah HR, Welte T, Kuehnel M, Jonigk D. Morphomolecular motifs of pulmonary neoangiogenesis in interstitial lung diseases. Eur Respir J 2020; 55:13993003.00933-2019. [PMID: 31806721 DOI: 10.1183/13993003.00933-2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 11/26/2019] [Indexed: 12/12/2022]
Abstract
The pathogenetic role of angiogenesis in interstitial lung diseases (ILDs) is controversial. This study represents the first investigation of the spatial complexity and molecular motifs of microvascular architecture in important subsets of human ILD. The aim of our study was to identify specific variants of neoangiogenesis in three common pulmonary injury patterns in human ILD.We performed comprehensive and compartment-specific analysis of 24 human lung explants with usual intersitial pneumonia (UIP), nonspecific interstitial pneumonia (NSIP) and alveolar fibroelastosis (AFE) using histopathology, microvascular corrosion casting, micro-comupted tomography based volumetry and gene expression analysis using Nanostring as well as immunohistochemistry to assess remodelling-associated angiogenesis.Morphometrical assessment of vessel diameters and intervascular distances showed significant differences in neoangiogenesis in characteristically remodelled areas of UIP, NSIP and AFE lungs. Likewise, gene expression analysis revealed distinct and specific angiogenic profiles in UIP, NSIP and AFE lungs.Whereas UIP lungs showed a higher density of upstream vascularity and lower density in perifocal blood vessels, NSIP and AFE lungs revealed densely packed alveolar septal blood vessels. Vascular remodelling in NSIP and AFE is characterised by a prominent intussusceptive neoangiogenesis, in contrast to UIP, in which sprouting of new vessels into the fibrotic areas is characteristic. The molecular analyses of the gene expression provide a foundation for understanding these fundamental differences between AFE and UIP and give insight into the cellular functions involved.
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Affiliation(s)
- Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany .,Institute of Pathology, Medical Faculty, Heinrich-Heine-University and University Hospital Düsseldorf, Düsseldorf, Germany.,These authors contributed equally and share first and the last authorship, respectively
| | - Helge Stark
- Institute of Pathology, Hannover Medical School, Hannover, Germany.,These authors contributed equally and share first and the last authorship, respectively
| | - Lavinia Neubert
- Institute of Pathology, Hannover Medical School, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany
| | | | - Paul Borchert
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | - Friedemann Linz
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Willi L Wagner
- Dept of Diagnostic and Interventional Radiology, Translational Lung Research Center Heidelberg (TLRC), Heidelberg, Germany.,Member of German Center for Lung Research (DZL), University of Heidelberg, Heidelberg, Germany
| | - Wolfram Stiller
- Dept of Diagnostic and Interventional Radiology, Translational Lung Research Center Heidelberg (TLRC), Heidelberg, Germany.,Member of German Center for Lung Research (DZL), University of Heidelberg, Heidelberg, Germany
| | - Mark Wielpütz
- Dept of Diagnostic and Interventional Radiology, Translational Lung Research Center Heidelberg (TLRC), Heidelberg, Germany.,Member of German Center for Lung Research (DZL), University of Heidelberg, Heidelberg, Germany
| | - Anne Hoefer
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | - Axel Haverich
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany.,Dept of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
| | - Harshit R Shah
- Institute of Pathology, Hannover Medical School, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany
| | - Tobias Welte
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany.,Clinic of Pneumology, Hannover Medical School, Hannover, Germany
| | - Mark Kuehnel
- Institute of Pathology, Hannover Medical School, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany.,These authors contributed equally and share first and the last authorship, respectively
| | - Danny Jonigk
- Institute of Pathology, Hannover Medical School, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover, Germany.,These authors contributed equally and share first and the last authorship, respectively
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10
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Eldridge L, Wagner EM. Angiogenesis in the lung. J Physiol 2018; 597:1023-1032. [PMID: 30022479 DOI: 10.1113/jp275860] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022] Open
Abstract
Both systemic (tracheal and bronchial) and pulmonary circulations perfuse the lung. However, documentation of angiogenesis of either is complicated by the presence of the other. Well-documented angiogenesis of the systemic circulations have been identified in asthma, cystic fibrosis, chronic thromboembolism and primary carcinomas. Angiogenesis of the vasa vasorum, which are branches of bronchial arteries, is seen in the walls of large pulmonary vessels after a period of chronic hypoxia. Documentation of increased pulmonary capillaries has been shown in models of chronic hypoxia, after pneumonectomy and in some carcinomas. Although endothelial cell proliferation may occur as part of the repair process in several pulmonary diseases, it is separate from the unique establishment of new functional perfusing networks defined as angiogenesis. Identification of the mechanisms driving the expansion of new vascular beds in the adult needs further investigation. Yet the growth factors and molecular mechanisms of lung angiogenesis remain difficult to separate from underlying disease sequelae.
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Affiliation(s)
- Lindsey Eldridge
- Departments of Medicine and Environmental Health Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Elizabeth M Wagner
- Departments of Medicine and Environmental Health Sciences, Johns Hopkins University, Baltimore, MD, USA
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11
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Wen Y, Chen R, Zhu C, Qiao H, Liu Y, Ji H, Miao J, Chen L, Liu X, Yang Y. MiR-503 suppresses hypoxia-induced proliferation, migration and angiogenesis of endothelial progenitor cells by targeting Apelin. Peptides 2018; 105:58-65. [PMID: 29800588 DOI: 10.1016/j.peptides.2018.05.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/15/2018] [Accepted: 05/20/2018] [Indexed: 01/08/2023]
Abstract
Endothelial progenitor cells (EPCs) are of great importance in the process of endogenous blood vessel repair to maintain endothelial integrity and have been applied in a wide range of models of ischemic diseases. MicroRNAs represent a class of non-protein coding endogenous RNAs with 19-24 nucleotides in length and serve an important role in multiple physiological and pathological processes, including angiogenesis. It has been reported that miR-503 reduces angiogenesis in tumorigenesis. However, to our knowledge, the precise role of miR-503 in the regulation of EPCs remains unclear. In the current study, we found that the expression of miR-503 was decreased in mouse bone marrow derived EPCs under the hypoxic condition. Importantly, upregulation of miR-503 suppressed the proliferation, migration and capillary-like tube formation of EPCs induced by hypoxia. Furthermore, a dual luciferase reporter assay showed that Apelin, an endogenous ligand of the G protein-coupled receptor APJ, was a direct target of miR-503 and overexpression of miR-503 significantly inhibited the protein level of Apelin in EPCs. Moreover, hypoxia treatment enhanced the expression of Apelin in EPCs. Meanwhile ectopic expression of Apelin promoted cellular proliferation, migration and tube formation of EPCs in vitro. In summary, our results indicate that miR-503 regulates proliferation, migration and angiogenesis of EPCs by targeting Apelin.
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Affiliation(s)
- Ya Wen
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Rong Chen
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Chunhua Zhu
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Huimin Qiao
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Ying Liu
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Hui Ji
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Jiangyong Miao
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Linyu Chen
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Xiaoxia Liu
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China
| | - Yi Yang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang 050000 Hebei, PR China; Laboratory of Neurology of Hebei Province, Shijiazhuang 050000 Hebei, PR China.
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12
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Mentzer SJ. The puzzling mechanism of compensatory lung growth. Stem Cell Investig 2018; 5:8. [PMID: 29682515 DOI: 10.21037/sci.2018.03.01] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 03/07/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
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13
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Lo BC, Gold MJ, Scheer S, Hughes MR, Cait J, Debruin E, Chu FSF, Walker DC, Soliman H, Rossi FM, Blanchet MR, Perona-Wright G, Zaph C, McNagny KM. Loss of Vascular CD34 Results in Increased Sensitivity to Lung Injury. Am J Respir Cell Mol Biol 2017; 57:651-661. [PMID: 28683207 DOI: 10.1165/rcmb.2016-0386oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Survival during lung injury requires a coordinated program of damage limitation and rapid repair. CD34 is a cell surface sialomucin expressed by epithelial, vascular, and stromal cells that promotes cell adhesion, coordinates inflammatory cell recruitment, and drives angiogenesis. To test whether CD34 also orchestrates pulmonary damage and repair, we induced acute lung injury in wild-type (WT) and Cd34-/- mice by bleomycin administration. We found that Cd34-/- mice displayed severe weight loss and early mortality compared with WT controls. Despite equivalent early airway inflammation to WT mice, CD34-deficient animals developed interstitial edema and endothelial delamination, suggesting impaired endothelial function. Chimeric Cd34-/- mice reconstituted with WT hematopoietic cells exhibited early mortality compared with WT mice reconstituted with Cd34-/- cells, supporting an endothelial defect. CD34-deficient mice were also more sensitive to lung damage caused by influenza infection, showing greater weight loss and more extensive pulmonary remodeling. Together, our data suggest that CD34 plays an essential role in maintaining vascular integrity in the lung in response to chemical- and infection-induced tissue damage.
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Affiliation(s)
- Bernard C Lo
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Matthew J Gold
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sebastian Scheer
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,2 Infection and Immunity Program, Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Michael R Hughes
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jessica Cait
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Erin Debruin
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Fanny S F Chu
- 3 Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - David C Walker
- 3 Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hesham Soliman
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Fabio M Rossi
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Marie-Renée Blanchet
- 4 Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Canada
| | - Georgia Perona-Wright
- 5 Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada; and.,6 Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Colby Zaph
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,2 Infection and Immunity Program, Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Kelly M McNagny
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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14
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Haber S, Weisbord M, Mentzer SJ, Tsuda A. Alveolar septal patterning during compensatory lung growth: Part II the effect of parenchymal pressure gradients. J Theor Biol 2017; 421:168-178. [PMID: 28363864 DOI: 10.1016/j.jtbi.2017.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/16/2017] [Accepted: 03/20/2017] [Indexed: 12/14/2022]
Abstract
In most mammals, compensatory lung growth occurs after the removal of one lung (pneumonectomy). Although the mechanism of alveolar growth is unknown, the patterning of complex alveolar geometry over organ-sized length scales is a central question in regenerative lung biology. Because shear forces appear capable of signaling the differentiation of important cells involved in neoalveolarization (fibroblasts and myofibroblasts), interstitial fluid mechanics provide a potential mechanism for the patterning of alveolar growth. The movement of interstitial fluid is created by two basic mechanisms: 1) the non-uniform motion of the boundary walls, and 2) parenchymal pressure gradients external to the interstitial fluid. In a previous study (Haber et al., Journal of Theoretical Biology 400: 118-128, 2016), we investigated the effects of non-uniform stretching of the primary septum (associated with its heterogeneous mechanical properties) during breathing on generating non-uniform Stokes flow in the interstitial space. In the present study, we analyzed the effect of parenchymal pressure gradients on interstitial flow. Dependent upon lung microarchitecture and physiologic conditions, parenchymal pressure gradients had a significant effect on the shear stress distribution in the interstitial space of primary septa. A dimensionless parameter δ described the ratio between the effects of a pressure gradient and the influence of non-uniform primary septal wall motion. Assuming that secondary septa are formed where shear stresses were the largest, it is shown that the geometry of the newly generated secondary septa was governed by the value of δ. For δ smaller than 0.26, the alveolus size was halved while for higher values its original size was unaltered. We conclude that the movement of interstitial fluid, governed by parenchymal pressure gradients and non-uniform primary septa wall motion, provides a plausible mechanism for the patterning of alveolar growth.
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Affiliation(s)
- Shimon Haber
- Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Michal Weisbord
- Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA, United States
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA, United States.
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15
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Bennett RD, Ysasi AB, Wagner WL, Valenzuela CD, Tsuda A, Pyne S, Li S, Grimsby J, Pokharel P, Livak KJ, Ackermann M, Blainey P, Mentzer SJ. Deformation-induced transitional myofibroblasts contribute to compensatory lung growth. Am J Physiol Lung Cell Mol Physiol 2017; 312:L79-L88. [PMID: 27836901 PMCID: PMC5283924 DOI: 10.1152/ajplung.00383.2016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/03/2016] [Accepted: 11/03/2016] [Indexed: 01/24/2023] Open
Abstract
In many mammals, including humans, removal of one lung (pneumonectomy) results in the compensatory growth of the remaining lung. Compensatory growth involves not only an increase in lung size, but also an increase in the number of alveoli in the peripheral lung; however, the process of compensatory neoalveolarization remains poorly understood. Here, we show that the expression of α-smooth muscle actin (SMA)-a cytoplasmic protein characteristic of myofibroblasts-is induced in the pleura following pneumonectomy. SMA induction appears to be dependent on pleural deformation (stretch) as induction is prevented by plombage or phrenic nerve transection (P < 0.001). Within 3 days of pneumonectomy, the frequency of SMA+ cells in subpleural alveolar ducts was significantly increased (P < 0.01). To determine the functional activity of these SMA+ cells, we isolated regenerating alveolar ducts by laser microdissection and analyzed individual cells using microfluidic single-cell quantitative PCR. Single cells expressing the SMA (Acta2) gene demonstrated significantly greater transcriptional activity than endothelial cells or other discrete cell populations in the alveolar duct (P < 0.05). The transcriptional activity of the Acta2+ cells, including expression of TGF signaling as well as repair-related genes, suggests that these myofibroblast-like cells contribute to compensatory lung growth.
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Affiliation(s)
- Robert D Bennett
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Alexandra B Ysasi
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Willi L Wagner
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Cristian D Valenzuela
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, Massachusetts
| | - Saumyadipta Pyne
- Indian Institute of Public Health, Kavuri Hills, Madhapur, Hyderabad, India
| | - Shuqiang Li
- Fluidigm Corporation, South San Francisco, California; and
| | - Jonna Grimsby
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts
| | - Prapti Pokharel
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts
| | | | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Paul Blainey
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts
| | - Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts;
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16
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Đevenica D, Markotić A, Režić-Mužinić N, Jelaska I, Zemunik T, Delić H, Čulić VČ. Hyperbaric environment up-regulates CD15s expression on leukocytes, down-regulates CD77 expression on renal cells and up-regulates CD34 expression on pulmonary and cardiac cells in rat. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2016; 19:821-828. [PMID: 27746862 PMCID: PMC5048116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 03/03/2016] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The aim of this study was to estimate effects of hyperbaric (HB) treatment by determination of CD15s and CD11b leukocyte proinflammatory markers expression. In addition, this study describes changes in CD77 and CD34 expression on rat endothelial cells in renal, pulmonary and cardiac tissue following exposure to hyperbaric pressure. MATERIALS AND METHODS Expression of CD11b and CD15s on leukocytes, as well as CD77 and CD34 expression on endothelial cells in cell suspensions of renal, pulmonary and cardiac tissue in rats after hyperbaric treatment and in control rats were determined by flow cytometry. RESULTS Hyperbaric treatment significantly increased percentage of leukocytes expressing CD15s+CD11b- (from 1.71±1.11 to 23.42±2.85, P<0.05). Hyperbaric treatment significantly decreased sum percentage of CD77+CD34- and CD77+CD34+ renal cells (from 16.35±5.5 to 4.48 ±1.28, P<0.05). Hyperbaric treatment significantly increased percentage of CD34+ pulmonary cells (from 3.27±2.01 to 11.92±6.22, P<0.05). Our study is the first reporting the hyperbaric environment influence on CD34+ heart cells in rats. CONCLUSION The current findings of increased percentage of leukocytes expressing endothelial selectin ligand CD15s after hyperbaric treatment, point its role in endothelial damage prevention. We found out a significantly increase in percentage of CD34+ cardiac cells as well as CD34+ pulmonary cells in rats after HB treatment which could be a part of repair mechanism of injured endothelium caused by hyperoxia.
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Affiliation(s)
- Danka Đevenica
- Postgraduate Student at University of Split School of Medicine, Split, Croatia
| | - Anita Markotić
- Department of Medical Chemistry and Biochemistry, University of Split School of Medicine, Split, Croatia
| | - Nikolina Režić-Mužinić
- Department of Medical Chemistry and Biochemistry, University of Split School of Medicine, Split, Croatia
| | - Igor Jelaska
- Faculty of Kinesiology, University of Split, Split, Croatia
| | - Tatijana Zemunik
- Department of Medical Biology, University of Split School of Medicine, Split, Croatia
| | - Hrvoje Delić
- Department of Medical Chemistry and Biochemistry, University of Split School of Medicine, Split, Croatia
| | - Vedrana Čikeš Čulić
- Department of Medical Chemistry and Biochemistry, University of Split School of Medicine, Split, Croatia
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17
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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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18
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Bennett RD, Ysasi AB, Belle JM, Wagner WL, Konerding MA, Blainey PC, Pyne S, Mentzer SJ. Laser microdissection of the alveolar duct enables single-cell genomic analysis. Front Oncol 2014; 4:260. [PMID: 25309876 PMCID: PMC4173809 DOI: 10.3389/fonc.2014.00260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Accepted: 09/06/2014] [Indexed: 01/12/2023] Open
Abstract
Complex tissues such as the lung are composed of structural hierarchies such as alveoli, alveolar ducts, and lobules. Some structural units, such as the alveolar duct, appear to participate in tissue repair as well as the development of bronchioalveolar carcinoma. Here, we demonstrate an approach to conduct laser microdissection of the lung alveolar duct for single-cell PCR analysis. Our approach involved three steps. (1) The initial preparation used mechanical sectioning of the lung tissue with sufficient thickness to encompass the structure of interest. In the case of the alveolar duct, the precision-cut lung slices were 200 μm thick; the slices were processed using near-physiologic conditions to preserve the state of viable cells. (2) The lung slices were examined by transmission light microscopy to target the alveolar duct. The air-filled lung was sufficiently accessible by light microscopy that counterstains or fluorescent labels were unnecessary to identify the alveolar duct. (3) The enzymatic and microfluidic isolation of single cells allowed for the harvest of as few as several thousand cells for PCR analysis. Microfluidics based arrays were used to measure the expression of selected marker genes in individual cells to characterize different cell populations. Preliminary work suggests the unique value of this approach to understand the intra- and intercellular interactions within the regenerating alveolar duct.
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Affiliation(s)
- Robert D Bennett
- Laboratory of Adaptive and Regenerative Biology, Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA
| | - Alexandra B Ysasi
- Laboratory of Adaptive and Regenerative Biology, Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA
| | - Janeil M Belle
- Laboratory of Adaptive and Regenerative Biology, Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA
| | - Willi L Wagner
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University , Mainz , Germany
| | - Moritz A Konerding
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University , Mainz , Germany
| | - Paul C Blainey
- Broad Institute of Massachusetts Institute of Technology, Harvard University , Cambridge, MA , USA
| | - Saumyadipta Pyne
- CR Rao Advanced Institute of Mathematics, Statistics and Computer Science , Hyderabad , India
| | - Steven J Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA
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19
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Stem cells, cell therapies, and bioengineering in lung biology and diseases. Comprehensive review of the recent literature 2010-2012. Ann Am Thorac Soc 2014; 10:S45-97. [PMID: 23869446 DOI: 10.1513/annalsats.201304-090aw] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A conference, "Stem Cells and Cell Therapies in Lung Biology and Lung Diseases," was held July 25 to 28, 2011 at the University of Vermont to review the current understanding of the role of stem and progenitor cells in lung repair after injury and to review the current status of cell therapy and ex vivo bioengineering approaches for lung diseases. These are rapidly expanding areas of study that provide further insight into and challenge traditional views of mechanisms of lung repair after injury and pathogenesis of several lung diseases. The goals of the conference were to summarize the current state of the field, to discuss and debate current controversies, and to identify future research directions and opportunities for basic and translational research in cell-based therapies for lung diseases. The goal of this article, which accompanies the formal conference report, is to provide a comprehensive review of the published literature in lung regenerative medicine from the last conference report through December 2012.
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20
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Thane K, Ingenito EP, Hoffman AM. Lung regeneration and translational implications of the postpneumonectomy model. Transl Res 2014; 163:363-76. [PMID: 24316173 DOI: 10.1016/j.trsl.2013.11.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/30/2013] [Accepted: 11/18/2013] [Indexed: 10/26/2022]
Abstract
Lung regeneration research is yielding data with increasing translational value. The classical models of lung development, postnatal alveolarization, and postpneumonectomy alveolarization have contributed to a broader understanding of the cellular participants including stem-progenitor cells, cell-cell signaling pathways, and the roles of mechanical deformation and other physiologic factors that have the potential to be modulated in human and animal patients. Although recent information is available describing the lineage fate of lung fibroblasts, genetic fate mapping, and clonal studies are lacking in the study of lung regeneration and deserve further examination. In addition to increasing knowledge concerning classical alveolarization (postnatal, postpneumonectomy), there is increasing evidence for remodeling of the adult lung after partial pneumonectomy. Though limited in scope, compelling data have emerged describing restoration of lung tissue mass in the adult human and in large animal models. The basis for this long-term adaptation to pneumonectomy is poorly understood, but investigations into mechanisms of lung regeneration in older animals that have lost their capacity for rapid re-alveolarization are warranted, as there would be great translational value in modulating these mechanisms. In addition, quantitative morphometric analysis has progressed in conjunction with developments in advanced imaging, which allow for longitudinal and nonterminal evaluation of pulmonary regenerative responses in animals and humans. This review focuses on the cellular and molecular events that have been observed in animals and humans after pneumonectomy because this model is closest to classical regeneration in other mammalian systems and has revealed several new fronts of translational research that deserve consideration.
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Affiliation(s)
- Kristen Thane
- Department of Clinical Sciences, Regenerative Medicine Laboratory, Tufts University Cummings School of Veterinary Medicine, North Grafton, Mass
| | - Edward P Ingenito
- Division of Pulmonary, Critical Care, and Sleep Medicine, Brigham and Women's Hospital, Boston, Mass
| | - Andrew M Hoffman
- Department of Clinical Sciences, Regenerative Medicine Laboratory, Tufts University Cummings School of Veterinary Medicine, North Grafton, Mass.
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21
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Intussusceptive angiogenesis: expansion and remodeling of microvascular networks. Angiogenesis 2014; 17:499-509. [PMID: 24668225 DOI: 10.1007/s10456-014-9428-3] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Accepted: 03/20/2014] [Indexed: 01/25/2023]
Abstract
Intussusceptive angiogenesis is a dynamic intravascular process capable of dramatically modifying the structure of the microcirculation. The distinctive structural feature of intussusceptive angiogenesis is the intussusceptive pillar--a cylindrical microstructure that spans the lumen of small vessels and capillaries. The extension of the intussusceptive pillar appears to be a mechanism for pruning redundant or inefficient vessels, modifying the branch angle of bifurcating vessels and duplicating existing vessels. Despite the biological importance and therapeutic potential, intussusceptive angiogenesis remains a mystery, in part, because it is an intravascular process that is unseen by conventional light microscopy. Here, we review several fundamental questions in the context of our current understanding of both intussusceptive and sprouting angiogenesis. (1) What are the physiologic signals that trigger pillar formation? (2) What endothelial and blood flow conditions specify pillar location? (3) How do pillars respond to the mechanical influence of blood flow? (4) What biological influences contribute to pillar extension? The answers to these questions are likely to provide important insights into the structure and function of microvascular networks.
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22
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Karagiannis GS, Saraon P, Jarvi KA, Diamandis EP. Proteomic signatures of angiogenesis in androgen-independent prostate cancer. Prostate 2014; 74:260-72. [PMID: 24166580 DOI: 10.1002/pros.22747] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 09/30/2013] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The observation that angiogenesis, the process of new blood vessel formation, in healthy prostate and early prostate cancer is androgen-dependent gave rise to significant questions on how hypervascularization and increased angiogenesis is also achieved at the molecular level in advanced androgen-independent prostate cancer. The exact paracrine molecular network that is hardwired into the proteome of the endothelial and cancer subpopulations participating in this process remains partially understood. METHODS Here, we interrogated the signaling pathways and the molecular functional signatures across the proteome of endothelial cells after interacting with various secretomes produced by androgen-dependent and -independent prostate cancer cells. RESULTS We found the significant overexpression (P < 0.05) of prominent markers of angiogenesis, such as vonWillebrand factor (vWF) (∼ 2.5-fold) and CD31 (∼ 2-fold) in HUVECs stimulated with conditioned media from the androgen-independent prostate cancer cell line PC3. By mining the proteome of PC3 conditioned media, we discovered a signature of chemokine CXC motif ligands (i.e., CXCL3, CXCL5, CXCL6 and CXCL8) that could potentially coordinate increased angiogenesis in androgen-independent prostate cancer and verified their increased expression (P < 0.05) in both in vitro and xenograft models of androgen-independence. DISCUSSION Our findings form the basis for understanding the regulation of crucial metastatic phenomena during the transition of androgen-dependent prostate cancer into the highly aggressive, androgen-independent state and provide further insight on potential therapeutic targets of cancer-related angiogenesis.
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MESH Headings
- Androgens/pharmacology
- Cell Line, Tumor
- Chemokines, CXC/analysis
- Chemokines, CXC/genetics
- Culture Media, Conditioned/chemistry
- Endothelium, Vascular/chemistry
- Endothelium, Vascular/metabolism
- Gene Expression
- Human Umbilical Vein Endothelial Cells
- Humans
- Male
- Neovascularization, Pathologic/metabolism
- Platelet Endothelial Cell Adhesion Molecule-1/analysis
- Platelet Endothelial Cell Adhesion Molecule-1/genetics
- Prostatic Neoplasms/blood supply
- Prostatic Neoplasms/metabolism
- Prostatic Neoplasms, Castration-Resistant/blood supply
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Proteomics
- RNA, Messenger/analysis
- Signal Transduction
- von Willebrand Factor/analysis
- von Willebrand Factor/genetics
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Affiliation(s)
- George S Karagiannis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
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23
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Filipovic N, Gibney BC, Kojic M, Nikolic D, Isailovic V, Ysasi A, Konerding MA, Mentzer SJ, Tsuda A. Mapping cyclic stretch in the postpneumonectomy murine lung. J Appl Physiol (1985) 2013; 115:1370-8. [PMID: 23990237 DOI: 10.1152/japplphysiol.00635.2013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In many mammalian species, the removal of one lung [pneumonectomy (PNX)] is associated with the compensatory growth of the remaining lung. To investigate the hypothesis that parenchymal deformation may trigger lung regeneration, we used respiratory-gated micro-computed tomography scanning to create three-dimensional finite-element geometric models of the murine cardiac lobe with cyclic breathing. Models were constructed of respiratory-gated micro-computed tomography scans pre-PNX and 24 h post-PNX. The computational models demonstrated that the maximum stretch ratio map was patchy and heterogeneous, particularly in subpleural, juxta-diaphragmatic, and cephalad regions of the lobe. In these parenchymal regions, the material line segments at peak inspiration were frequently two- to fourfold greater after PNX; some regions of the post-PNX cardiac lobe demonstrated parenchymal compression at peak inspiration. Similarly, analyses of parenchymal maximum shear strain demonstrated heterogeneous regions of mechanical stress with focal regions demonstrating a threefold increase in shear strain after PNX. Consistent with previously identified growth patterns, these subpleural regions of enhanced stretch and shear strain are compatible with a mechanical signal, likely involving cyclic parenchymal stretch, triggering lung growth.
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Affiliation(s)
- Nenad Filipovic
- Faculty of Engineering, University of Kragujevac, Kragujevac, Serbia
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Wong AP, Rossant J. Generation of Lung Epithelium from Pluripotent Stem Cells. CURRENT PATHOBIOLOGY REPORTS 2013; 1:137-145. [PMID: 23662247 PMCID: PMC3646155 DOI: 10.1007/s40139-013-0016-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The understanding of key processes and signaling mechanisms in lung development has been mainly demonstrated through gain and loss of function studies in mice, while human lung development remains largely unexplored due to inaccessibility. Several recent reports have exploited the identification of key signaling mechanisms that regulate lineage commitment and restriction in mouse lung development, to direct differentiation of both mouse and human pluripotent stem cells towards lung epithelial cells. In this review, we discuss the recent advances in the generation of respiratory epithelia from pluripotent stem cells and the potential of these engineered cells for novel scientific discoveries in lung diseases and future translation into regenerative therapies.
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Affiliation(s)
- Amy P. Wong
- Program in Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON M5G 1L7 Canada
| | - Janet Rossant
- Program in Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON M5G 1L7 Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8 Canada
- Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G 1X8 Canada
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Chamoto K, Gibney BC, Lee GS, Ackermann M, Konerding MA, Tsuda A, Mentzer SJ. Migration of CD11b+ accessory cells during murine lung regeneration. Stem Cell Res 2013; 10:267-77. [PMID: 23376466 PMCID: PMC3622126 DOI: 10.1016/j.scr.2012.12.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 12/05/2012] [Accepted: 12/26/2012] [Indexed: 10/27/2022] Open
Abstract
In many mammalian species, the removal of one lung leads to growth of the remaining lung to near-baseline levels. In studying post-pneumonectomy mice, we used morphometric measures to demonstrate neoalveolarization within 21 days of pneumonectomy. Of note, the detailed histology during this period demonstrated no significant pulmonary inflammation. To identify occult blood-borne cells, we used a parabiotic model (wild-type/GFP) of post-pneumonectomy lung growth. Flow cytometry of post-pneumonectomy lung digests demonstrated a rapid increase in the number of cells expressing the hematopoietic membrane molecule CD11b; 64.5% of the entire GFP(+) population were CD11b(+). Fluorescence microscopy demonstrated that the CD11b(+) peripheral blood cells migrated into both the interstitial tissue and alveolar airspace compartments. Pneumonectomy in mice deficient in CD11b (CD18(-/-) mutants) demonstrated near-absent leukocyte migration into the airspace compartment (p<.001) and impaired lung growth as demonstrated by lung weight (p<.05) and lung volume (p<.05). Transcriptional activity of the partitioned CD11b(+) cells demonstrated significantly increased transcription of Angpt1, Il1b, and Mmp8, Mmp9, Ncam1, Sele, Sell, Selp in the alveolar airspace and Adamts2, Ecm1, Egf, Mmp7, Npr1, Tgfb2 in the interstitial tissue (>4-fold regulation; p<.05). These data suggest that blood-borne CD11b(+) cells represent a population of accessory cells contributing to post-pneumonectomy lung growth.
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Affiliation(s)
- Kenji Chamoto
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Barry C. Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Grace S. Lee
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Moritz A. Konerding
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA
| | - Steven J. Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
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Chamoto K, Gibney BC, Ackermann M, Lee GS, Konerding MA, Tsuda A, Mentzer SJ. Alveolar epithelial dynamics in postpneumonectomy lung growth. Anat Rec (Hoboken) 2013; 296:495-503. [PMID: 23408540 PMCID: PMC3576046 DOI: 10.1002/ar.22659] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 05/14/2012] [Accepted: 07/24/2012] [Indexed: 11/07/2022]
Abstract
The intimate anatomic and functional relationship between epithelial cells and endothelial cells within the alveolus suggests the likelihood of a coordinated response during postpneumonectomy lung growth. To define the population dynamics and potential contribution of alveolar epithelial cells to alveolar angiogenesis, we studied alveolar Type II and I cells during the 21 days after pneumonectomy. Alveolar Type II cells were defined and isolated by flow cytometry using a CD45(-) , MHC class II(+) , phosphine(+) phenotype. These phenotypically defined alveolar Type II cells demonstrated an increase in cell number after pneumonectomy; the increase in cell number preceded the increase in Type I (T1α(+) ) cells. Using a parabiotic wild type/GFP pneumonectomy model, <3% of the Type II cells and 1% of the Type I cells were positive for GFP-a finding consistent with the absence of a blood-borne contribution to alveolar epithelial cells. The CD45(-) , MHC class II(+) , phosphine(+) Type II cells demonstrated the active transcription of angiogenesis-related genes both before and after pneumonectomy. When the Type II cells on Day 7 after pneumonectomy were compared to nonsurgical controls, 10 genes demonstrated significantly increased expression (P<0.05). In contrast to the normal adult Type II cells, there was notable expression of inflammation-associated genes (Ccl2, Cxcl2, Ifng) as well as genes associated with epithelial growth (Ereg, Lep). Together, the data suggest an active contribution of local alveolar Type II cells to alveolar growth.
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Affiliation(s)
- Kenji Chamoto
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston MA
| | - Barry C. Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston MA
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Grace S. Lee
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston MA
| | - Moritz A. Konerding
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA
| | - Steven J. Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston MA
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Gibney BC, Houdek JP, Chamoto K, Lee GS, Ackermann M, Lin M, Collings-Simpson D, Konerding MA, Tsuda A, Mentzer SJ. Mechanostructural adaptations preceding postpneumonectomy lung growth. Exp Lung Res 2012; 38:396-405. [PMID: 22905715 PMCID: PMC4020359 DOI: 10.3109/01902148.2012.715364] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In many species, pneumonectomy results in compensatory growth in the remaining lung. Although the late mechanical consequences of murine pneumonectomy are known, little is known about the anatomic adaptations and respiratory mechanics during compensatory lung growth. To investigate the structural and mechanical changes during compensatory growth, mice were studied for 21 days after left pneumonectomy using microCT and respiratory system impedance (FlexiVent). Anatomic changes after left pneumonectomy included minimal mediastinal shift or chestwall remodeling, but significant displacement of the heart and cardiac lobe. Mean displacement of the cardiac lobe centroid was 5.2 ± 0.8 mm. Lung impedance measurements were used to investigate the associated changes in respiratory mechanics. Quasi-static pressure-volume loops demonstrated progressive increase in volumes with decreased distensibility. Measures of quasi-static compliance and elastance were increased at all time points postpneumonectomy (P < .01). Oscillatory mechanics demonstrated a significant change in tissue impedance on the third day after pneumonectomy. The input impedance on day 3 after pneumonectomy demonstrated a significant increase in tissue damping (5.8 versus 4.3 cm H(2)O/mL) and elastance (36.7 versus 26.6 cm H(2)O/mL) when compared to controls. At all points, hysteresivity was unchanged (0.17). We conclude that the timing and duration of the mechanical changes was consistent with a mechanical signal for compensatory growth.
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Affiliation(s)
- Barry C. Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard, Medical School, Boston MA
| | - Jan P. Houdek
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, Germany
| | - Kenji Chamoto
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard, Medical School, Boston MA
| | - Grace S. Lee
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard, Medical School, Boston MA
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, Germany
| | - Miao Lin
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard, Medical School, Boston MA
| | - Dinee Collings-Simpson
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard, Medical School, Boston MA
| | - Moritz A. Konerding
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, Germany
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA
| | - Steven J. Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard, Medical School, Boston MA
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Filipovic N, Gibney BC, Nikolic D, Konerding MA, Mentzer SJ, Tsuda A. Computational analysis of lung deformation after murine pneumonectomy. [corrected]. Comput Methods Biomech Biomed Engin 2012; 17:838-44. [PMID: 22978574 PMCID: PMC3527685 DOI: 10.1080/10255842.2012.719606] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In many mammalian species, the removal of one lung (pneumonectomy) is associated with the compensatory growth of the remaining lung. To investigate the hypothesis that parenchymal deformation may trigger lung regeneration, we used microCT scanning to create 3D finite element geometric models of the murine lung pre- and post-pneumonectomy (24 h). The structural correspondence between models was established using anatomic landmarks and an iterative computational algorithm. When compared with the pre-pneumonectomy lung, the post-pneumonectomy models demonstrated significant translation and rotation of the cardiac lobe into the post-pneumonectomy pleural space. 2D maps of lung deformation demonstrated significant heterogeneity; the areas of greatest deformation were present in the subpleural regions of the lobe. Consistent with the previously identified growth patterns, subpleural regions of enhanced deformation are compatible with a mechanical signal - likely involving parenchymal stretch - triggering lung growth.
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Affiliation(s)
- Nenad Filipovic
- Faculty of Mechanical Engineering, University of Kragujevac, Serbia
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA
| | - Barry C. Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston MA
| | - Dalibor Nikolic
- Faculty of Mechanical Engineering, University of Kragujevac, Serbia
| | - Moritz A. Konerding
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Steven J. Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston MA
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA
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Chamoto K, Gibney BC, Ackermann M, Lee GS, Lin M, Konerding MA, Tsuda A, Mentzer SJ. Alveolar macrophage dynamics in murine lung regeneration. J Cell Physiol 2012; 227:3208-15. [PMID: 22105735 DOI: 10.1002/jcp.24009] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In most mammalian species, the removal of one lung results in dramatic compensatory growth of the remaining lung. To investigate the contribution of alveolar macrophages (AMs) to murine post-pneumonectomy lung growth, we studied bronchoalveolar lavage (BAL)-derived AM on 3, 7, 14 and 21 days after left pneumonectomy. BAL demonstrated a 3.0-fold increase in AM (CD45(+), CD11b(-), CD11c(+), F4/80(+), Gr-1(-)) by 14 days after pneumonectomy. Cell cycle flow cytometry of the BAL-derived cells demonstrated an increase in S + G2 phase cells on days 3 (11.3 ± 2.7%) and 7 (12.1 ± 1.8%) after pneumonectomy. Correspondingly, AM demonstrated increased expression of VEGFR1 and MHC class II between days 3 and 14 after pneumonectomy. To investigate the potential contribution of peripheral blood cells to this AM population, parabiotic mice (wild-type/GFP) underwent left pneumonectomy. Analysis of GFP(+) cells in the post-pneumonectomy lung demonstrated that by day 14, less than 1% of the AM population were derived from the peripheral blood. Finally, AM gene transcription demonstrated a significant shift from decreased transcription of angiogenesis-related genes on day 3 to increased transcription on day 7 after pneumonectomy. The increased number of locally proliferating AM, combined with their growth-related gene transcription, suggests that AM actively participate in compensatory lung growth.
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Affiliation(s)
- Kenji Chamoto
- Laboratory of Adaptive and Regenerative Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Konerding MA, Gibney BC, Houdek J, Chamoto K, Ackermann M, Lee GS, Lin M, Tsuda A, Mentzer SJ. Spatial dependence of alveolar angiogenesis in post-pneumonectomy lung growth. Angiogenesis 2012; 15:23-32. [PMID: 21969134 PMCID: PMC3268013 DOI: 10.1007/s10456-011-9236-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 09/19/2011] [Indexed: 01/24/2023]
Abstract
Growth of the remaining lung after pneumonectomy has been observed in many mammalian species; nonetheless, the pattern and morphology of alveolar angiogenesis during compensatory growth is unknown. Here, we investigated alveolar angiogenesis in a murine model of post-pneumonectomy lung growth. As expected, the volume and weight of the remaining lung returned to near-baseline levels within 21 days of pneumonectomy. The percentage increase in lobar weight was greatest in the cardiac lobe (P < 0.001). Cell cycle flow cytometry demonstrated a peak of lung cell proliferation (12.02 ± 1.48%) 6 days after pneumonectomy. Spatial autocorrelation analysis of the cardiac lobe demonstrated clustering of similar vascular densities (positive autocorrelation) that consistently mapped to subpleural regions of the cardiac lobe. Immunohistochemical staining demonstrated increased cell density and enhanced expression of angiogenesis-related factors VEGFA, and GLUT1 in these subpleural regions. Corrosion casting and scanning electron microscopy 3-6 days after pneumonectomy demonstrated subpleural vessels with angiogenic sprouts. The monopodial sprouts appeared to be randomly oriented along the vessel axis with interbranch distances of 11.4 ± 4.8 μm in the regions of active angiogenesis. Also present within the regions of increased vascular density were frequent "holes" or "pillars" consistent with active intussusceptive angiogenesis. The mean pillar diameter was 4.2 ± 3.8 μm, and the pillars were observed in all regions of active angiogenesis. These findings indicate that the process of alveolar construction involves discrete regions of regenerative growth, particularly in the subpleural regions of the cardiac lobe, characterized by both sprouting and intussusceptive angiogenesis.
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Affiliation(s)
- Moritz A. Konerding
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Barry C. Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Jan Houdek
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Kenji Chamoto
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Grace S. Lee
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Miao Lin
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
| | - Akira Tsuda
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA
| | - Steven J. Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston MA
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