1
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Antounians L, Figueira RL, Kukreja B, Litvack ML, Zani-Ruttenstock E, Khalaj K, Montalva L, Doktor F, Obed M, Blundell M, Wu T, Chan C, Wagner R, Lacher M, Wilson MD, Post M, Kalish BT, Zani A. Fetal hypoplastic lungs have multilineage inflammation that is reversed by amniotic fluid stem cell extracellular vesicle treatment. SCIENCE ADVANCES 2024; 10:eadn5405. [PMID: 39058789 PMCID: PMC11277482 DOI: 10.1126/sciadv.adn5405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 06/21/2024] [Indexed: 07/28/2024]
Abstract
Antenatal administration of extracellular vesicles from amniotic fluid stem cells (AFSC-EVs) reverses features of pulmonary hypoplasia in models of congenital diaphragmatic hernia (CDH). However, it remains unknown which lung cellular compartments and biological pathways are affected by AFSC-EV therapy. Herein, we conducted single-nucleus RNA sequencing (snRNA-seq) on rat fetal CDH lungs treated with vehicle or AFSC-EVs. We identified that intra-amniotically injected AFSC-EVs reach the fetal lung in rats with CDH, where they promote lung branching morphogenesis and epithelial cell differentiation. Moreover, snRNA-seq revealed that rat fetal CDH lungs have a multilineage inflammatory signature with macrophage enrichment, which is reversed by AFSC-EV treatment. Macrophage enrichment in CDH fetal rat lungs was confirmed by immunofluorescence, flow cytometry, and inhibition studies with GW2580. Moreover, we validated macrophage enrichment in human fetal CDH lung autopsy samples. Together, this study advances knowledge on the pathogenesis of pulmonary hypoplasia and further evidence on the value of an EV-based therapy for CDH fetuses.
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Affiliation(s)
- Lina Antounians
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Rebeca Lopes Figueira
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Bharti Kukreja
- Neurosciences and Mental Health Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
| | - Michael L. Litvack
- Translational Medicine Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
| | - Elke Zani-Ruttenstock
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Kasra Khalaj
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Louise Montalva
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Fabian Doktor
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Mikal Obed
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Matisse Blundell
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Taiyi Wu
- Neurosciences and Mental Health Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
| | - Cadia Chan
- Genetics and Genome Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto M5S 1A8, Canada
| | - Richard Wagner
- Department of Pediatric Surgery, Leipzig University, Leipzig 04109, Germany
| | - Martin Lacher
- Department of Pediatric Surgery, Leipzig University, Leipzig 04109, Germany
| | - Michael D. Wilson
- Genetics and Genome Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto M5S 1A8, Canada
| | - Martin Post
- Translational Medicine Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto M5T 1P5, Canada
| | - Brian T. Kalish
- Neurosciences and Mental Health Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto M5S 1A8, Canada
- Division of Neonatology, The Hospital for Sick Children, Toronto M5G 1X8, Canada
| | - Augusto Zani
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto M5G 1X8, Canada
- Department of Surgery, University of Toronto, Toronto M5T 1P5, Canada
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2
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Banavar SP, Fowler EW, Nelson CM. Biophysics of morphogenesis in the vertebrate lung. Curr Top Dev Biol 2024; 160:65-86. [PMID: 38937031 DOI: 10.1016/bs.ctdb.2024.05.003] [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] [Indexed: 06/29/2024]
Abstract
Morphogenesis is a physical process that sculpts the final functional forms of tissues and organs. Remarkably, the lungs of terrestrial vertebrates vary dramatically in form across species, despite providing the same function of transporting oxygen and carbon dioxide. These divergent forms arise from distinct physical processes through which the epithelium of the embryonic lung responds to the mechanical properties of its surrounding mesenchymal microenvironment. Here we compare the physical processes that guide folding of the lung epithelium in mammals, birds, and reptiles, and suggest a conceptual framework that reconciles how conserved molecular signaling generates divergent mechanical forces across these species.
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Affiliation(s)
- Samhita P Banavar
- Department of Chemical & Biological Engineering, Princeton University, Princeton, NJ, United States
| | - Eric W Fowler
- 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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3
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Yang X, Chen Y, Yang Y, Li S, Mi P, Jing N. The molecular and cellular choreography of early mammalian lung development. MEDICAL REVIEW (2021) 2024; 4:192-206. [PMID: 38919401 PMCID: PMC11195428 DOI: 10.1515/mr-2023-0064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/08/2024] [Indexed: 06/27/2024]
Abstract
Mammalian lung development starts from a specific cluster of endodermal cells situated within the ventral foregut region. With the orchestrating of delicate choreography of transcription factors, signaling pathways, and cell-cell communications, the endodermal diverticulum extends into the surrounding mesenchyme, and builds the cellular and structural basis of the complex respiratory system. This review provides a comprehensive overview of the current molecular insights of mammalian lung development, with a particular focus on the early stage of lung cell fate differentiation and spatial patterning. Furthermore, we explore the implications of several congenital respiratory diseases and the relevance to early organogenesis. Finally, we summarize the unprecedented knowledge concerning lung cell compositions, regulatory networks as well as the promising prospect for gaining an unbiased understanding of lung development and lung malformations through state-of-the-art single-cell omics.
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Affiliation(s)
- Xianfa Yang
- Guangzhou National Laboratory, Guangzhou, Guangdong Province, China
| | - Yingying Chen
- Guangzhou National Laboratory, Guangzhou, Guangdong Province, China
| | - Yun Yang
- Guangzhou National Laboratory, Guangzhou, Guangdong Province, China
- Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Shiting Li
- Guangzhou National Laboratory, Guangzhou, Guangdong Province, China
- Institute of Biomedical Research, Yunnan University, Kunming, Yunnan Province, China
| | - Panpan Mi
- Guangzhou National Laboratory, Guangzhou, Guangdong Province, China
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Naihe Jing
- Guangzhou National Laboratory, Guangzhou, Guangdong Province, China
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4
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Urciuolo F, Imparato G, Netti PA. Engineering Cell Instructive Microenvironments for In Vitro Replication of Functional Barrier Organs. Adv Healthc Mater 2024:e2400357. [PMID: 38695274 DOI: 10.1002/adhm.202400357] [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: 01/29/2024] [Revised: 04/02/2024] [Indexed: 05/14/2024]
Abstract
Multicellular organisms exhibit synergistic effects among their components, giving rise to emergent properties crucial for their genesis and overall functionality and survival. Morphogenesis involves and relies upon intricate and biunivocal interactions among cells and their environment, that is, the extracellular matrix (ECM). Cells secrete their own ECM, which in turn, regulates their morphogenetic program by controlling time and space presentation of matricellular signals. The ECM, once considered passive, is now recognized as an informative space where both biochemical and biophysical signals are tightly orchestrated. Replicating this sophisticated and highly interconnected informative media in a synthetic scaffold for tissue engineering is unattainable with current technology and this limits the capability to engineer functional human organs in vitro and in vivo. This review explores current limitations to in vitro organ morphogenesis, emphasizing the interplay of gene regulatory networks, mechanical factors, and tissue microenvironment cues. In vitro efforts to replicate biological processes for barrier organs such as the lung and intestine, are examined. The importance of maintaining cells within their native microenvironmental context is highlighted to accurately replicate organ-specific properties. The review underscores the necessity for microphysiological systems that faithfully reproduce cell-native interactions, for advancing the understanding of developmental disorders and disease progression.
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Affiliation(s)
- Francesco Urciuolo
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) and Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Piazzale Tecchio 80, Napoli, 80125, Italy
| | - Giorgia Imparato
- Centre for Advanced Biomaterials for Health Care (IIT@CRIB), Istituto Italiano di Tecnologia, L.go Barsanti e Matteucci, Napoli, 80125, Italy
| | - Paolo Antonio Netti
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) and Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Piazzale Tecchio 80, Napoli, 80125, Italy
- Centre for Advanced Biomaterials for Health Care (IIT@CRIB), Istituto Italiano di Tecnologia, L.go Barsanti e Matteucci, Napoli, 80125, Italy
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5
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Lea G, Hanna CW. Loss of DNA methylation disrupts syncytiotrophoblast development: Proposed consequences of aberrant germline gene activation. Bioessays 2024; 46:e2300140. [PMID: 37994176 DOI: 10.1002/bies.202300140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/26/2023] [Accepted: 10/24/2023] [Indexed: 11/24/2023]
Abstract
DNA methylation is a repressive epigenetic modification that is essential for development and its disruption is widely implicated in disease. Yet, remarkably, ablation of DNA methylation in transgenic mouse models has limited impact on transcriptional states. Across multiple tissues and developmental contexts, the predominant transcriptional signature upon loss of DNA methylation is the de-repression of a subset of germline genes, normally expressed in gametogenesis. We recently reported loss of de novo DNA methyltransferase DNMT3B resulted in up-regulation of germline genes and impaired syncytiotrophoblast formation in the murine placenta. This defect led to embryonic lethality. We hypothesize that de-repression of germline genes in the Dnmt3b knockout underpins aspects of the placental phenotype by interfering with normal developmental processes. Specifically, we discuss molecular mechanisms by which aberrant expression of the piRNA pathway, meiotic proteins or germline transcriptional regulators may disrupt syncytiotrophoblast development.
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Affiliation(s)
- Georgia Lea
- Department of Physiology Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Courtney W Hanna
- Department of Physiology Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
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6
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Jain KG, Xi NM, Zhao R, Ahmad W, Ali G, Ji HL. Alveolar Type 2 Epithelial Cell Organoids: Focus on Culture Methods. Biomedicines 2023; 11:3034. [PMID: 38002035 PMCID: PMC10669847 DOI: 10.3390/biomedicines11113034] [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: 10/12/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Lung diseases rank third in terms of mortality and represent a significant economic burden globally. Scientists have been conducting research to better understand respiratory diseases and find treatments for them. An ideal in vitro model must mimic the in vivo organ structure, physiology, and pathology. Organoids are self-organizing, three-dimensional (3D) structures originating from adult stem cells, embryonic lung bud progenitors, embryonic stem cells (ESCs), and induced pluripotent stem cells (iPSCs). These 3D organoid cultures may provide a platform for exploring tissue development, the regulatory mechanisms related to the repair of lung epithelia, pathophysiological and immunomodulatory responses to different respiratory conditions, and screening compounds for new drugs. To create 3D lung organoids in vitro, both co-culture and feeder-free methods have been used. However, there exists substantial heterogeneity in the organoid culture methods, including the sources of AT2 cells, media composition, and feeder cell origins. This article highlights the currently available methods for growing AT2 organoids and prospective improvements to improve the available culture techniques/conditions. Further, we discuss various applications, particularly those aimed at modeling human distal lung diseases and cell therapy.
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Affiliation(s)
- Krishan Gopal Jain
- Department of Surgery, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA; (K.G.J.); (R.Z.); (W.A.)
- Burn and Shock Trauma Research Institute, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
| | - Nan Miles Xi
- Department of Mathematics and Statistics, Loyola University Chicago, Chicago, IL 60660, USA;
| | - Runzhen Zhao
- Department of Surgery, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA; (K.G.J.); (R.Z.); (W.A.)
- Burn and Shock Trauma Research Institute, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
| | - Waqas Ahmad
- Department of Surgery, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA; (K.G.J.); (R.Z.); (W.A.)
- Burn and Shock Trauma Research Institute, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
| | - Gibran Ali
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN 55905, USA;
| | - Hong-Long Ji
- Department of Surgery, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA; (K.G.J.); (R.Z.); (W.A.)
- Burn and Shock Trauma Research Institute, Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
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7
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Belgacemi R, Cherry C, El Alam I, Frauenpreis A, Glass I, Bellusci S, Danopoulos S, Al Alam D. Preferential FGF18/FGFR activity in pseudoglandular versus canalicular stage human lung fibroblasts. Front Cell Dev Biol 2023; 11:1220002. [PMID: 37701781 PMCID: PMC10493313 DOI: 10.3389/fcell.2023.1220002] [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: 05/10/2023] [Accepted: 07/17/2023] [Indexed: 09/14/2023] Open
Abstract
Fibroblast growth factor (FGF) signaling is necessary for proper lung branching morphogenesis, alveolarization, and vascular development. Dysregulation of FGF activity has been implicated in various lung diseases. Recently, we showed that FGF18 promotes human lung branching morphogenesis by regulating mesenchymal progenitor cells. However, the underlying mechanisms remain unclear. Thus, we aimed to determine the role of FGF18 and its receptors (FGFR) in regulating mesenchymal cell proliferation, migration, and differentiation from pseudoglandular to canalicular stage. We performed siRNA assays to identify the specific FGFR(s) associated with FGF18-induced biological processes. We found that FGF18 increased proliferation and migration in human fetal lung fibroblasts (HFLF) from both stages. FGFR2/FGFR4 played a significant role in pseudoglandular stage. HFLF proliferation, while FGFR3/FGFR4 were involved in canalicular stage. FGF18 enhanced HFLF migration through FGFR2 and FGFR4 in pseudoglandular and canalicular stage, respectively. Finally, we provide evidence that FGF18 treatment leads to reduced expression of myofibroblast markers (ACTA2 and COL1A1) and increased expression of lipofibroblast markers (ADRP and PPARγ) in both stages HFLF. However, the specific FGF18/FGFR complex involved in this process varies depending on the stage. Our findings suggest that in context of human lung development, FGF18 tends to associate with distinct FGFRs to initiate specific biological processes on mesenchymal cells.
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Affiliation(s)
- Randa Belgacemi
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Caroline Cherry
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Imad El Alam
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Andrew Frauenpreis
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Ian Glass
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, United States
| | - Saverio Bellusci
- Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UG-MLC), Justus-Liebig-University Giessen, German Center for Lung Research (DZL), Giessen, Germany
| | - Soula Danopoulos
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Denise Al Alam
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
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8
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Liu S, Sun D, Butler R, Rawlins EL. RTK signalling promotes epithelial columnar cell shape and apical junction maintenance in human lung progenitor cells. Development 2023; 150:dev201284. [PMID: 37260147 PMCID: PMC10281517 DOI: 10.1242/dev.201284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 05/10/2023] [Indexed: 05/25/2023]
Abstract
Multipotent epithelial progenitor cells can be expanded from human embryonic lungs as organoids and maintained in a self-renewing state using a defined medium. The organoid cells are columnar, resembling the cell morphology of the developing lung tip epithelium in vivo. Cell shape dynamics and fate are tightly coordinated during development. We therefore used the organoid system to identify signalling pathways that maintain the columnar shape of human lung tip progenitors. We found that EGF, FGF7 and FGF10 have distinct functions in lung tip progenitors. FGF7 activates MAPK/ERK and PI3K/AKT signalling, and is sufficient to promote columnar cell shape in primary tip progenitors. Inhibitor experiments show that MAPK/ERK and PI3K/AKT signalling are key downstream pathways, regulating cell proliferation, columnar cell shape and cell junctions. We identified integrin signalling as a key pathway downstream of MAPK/ERK in the tip progenitors; disrupting integrin alters polarity, cell adhesion and tight junction assembly. By contrast, stimulation with FGF10 or EGF alone is not sufficient to maintain organoid columnar cell shape. This study employs organoids to provide insight into the cellular mechanisms regulating human lung development.
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Affiliation(s)
- Shuyu Liu
- Wellcome Trust/CRUK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Dawei Sun
- Wellcome Trust/CRUK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Richard Butler
- Wellcome Trust/CRUK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK
| | - Emma L. Rawlins
- Wellcome Trust/CRUK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
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9
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Baguma-Nibasheka M, Kablar B. Mechanics of Lung Development. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2023; 236:131-150. [PMID: 37955774 DOI: 10.1007/978-3-031-38215-4_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
We summarize how skeletal muscle and lung developmental biology fields have been bridged to benefit from mouse genetic engineering technologies and to explore the role of fetal breathing-like movements (FBMs) in lung development, by using skeletal muscle-specific mutant mice. It has been known for a long time that FBMs are essential for the lung to develop properly. However, the cellular and molecular mechanisms transducing the mechanical forces of muscular activity into specific genetic programs that propel lung morphogenesis (development of the shape, form and size of the lung, its airways, and gas exchange surface) as well as its differentiation (acquisition of specialized cell structural and functional features from their progenitor cells) are only starting to be revealed. This chapter is a brief synopsis of the cumulative findings from that ongoing quest. An update on and the rationale for our recent International Mouse Phenotyping Consortium (IMPC) search is also provided.
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Affiliation(s)
- Mark Baguma-Nibasheka
- Department of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada.
| | - Boris Kablar
- Department of Medical Neuroscience, Anatomy and Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
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10
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Brownfield DG, de Arce AD, Ghelfi E, Gillich A, Desai TJ, Krasnow MA. Alveolar cell fate selection and lifelong maintenance of AT2 cells by FGF signaling. Nat Commun 2022; 13:7137. [PMID: 36414616 PMCID: PMC9681748 DOI: 10.1038/s41467-022-34059-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 10/12/2022] [Indexed: 11/24/2022] Open
Abstract
The lung's gas exchange surface is comprised of alveolar AT1 and AT2 cells that are corrupted in several common and deadly diseases. They arise from a bipotent progenitor whose differentiation is thought to be dictated by differential mechanical forces. Here we show the critical determinant is FGF signaling. Fgfr2 is expressed in the developing progenitors in mouse then restricts to nascent AT2 cells and remains on throughout life. Its ligands are expressed in surrounding mesenchyme and can, in the absence of exogenous mechanical cues, induce progenitors to form alveolospheres with intermingled AT2 and AT1 cells. FGF signaling directly and cell autonomously specifies AT2 fate; progenitors lacking Fgfr2 in vitro and in vivo exclusively acquire AT1 fate. Fgfr2 loss in AT2 cells perinatally results in reprogramming to AT1 identity, whereas loss or inhibition later in life triggers AT2 apoptosis and compensatory regeneration. We propose that Fgfr2 signaling selects AT2 fate during development, induces a cell non-autonomous AT1 differentiation signal, then continuously maintains AT2 identity and survival throughout life.
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Affiliation(s)
- Douglas G Brownfield
- Department of Biochemistry and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, 94305-5307, USA.
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Division of Pulmonary and Critical Care Medicine, Departments of Physiology and Biomedical Engineering and of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Rochester, MN, 55905, USA.
| | - Alex Diaz de Arce
- Department of Biochemistry and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, 94305-5307, USA
| | - Elisa Ghelfi
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Astrid Gillich
- Department of Biochemistry and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, 94305-5307, USA
| | - Tushar J Desai
- Department of Internal Medicine and Stem Cell Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - Mark A Krasnow
- Department of Biochemistry and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, 94305-5307, USA.
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11
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Hein RFC, Conchola AS, Fine AS, Xiao Z, Frum T, Brastrom LK, Akinwale MA, Childs CJ, Tsai YH, Holloway EM, Huang S, Mahoney J, Heemskerk I, Spence JR. Stable iPSC-derived NKX2-1+ lung bud tip progenitor organoids give rise to airway and alveolar cell types. Development 2022; 149:dev200693. [PMID: 36039869 PMCID: PMC9534489 DOI: 10.1242/dev.200693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/28/2022] [Indexed: 12/13/2022]
Abstract
Bud tip progenitors (BTPs) in the developing lung give rise to all epithelial cell types found in the airways and alveoli. This work aimed to develop an iPSC organoid model enriched with NKX2-1+ BTP-like cells. Building on previous studies, we optimized a directed differentiation paradigm to generate spheroids with more robust NKX2-1 expression. Spheroids were expanded into organoids that possessed NKX2-1+/CPM+ BTP-like cells, which increased in number over time. Single cell RNA-sequencing analysis revealed a high degree of transcriptional similarity between induced BTPs (iBTPs) and in vivo BTPs. Using FACS, iBTPs were purified and expanded as induced bud tip progenitor organoids (iBTOs), which maintained an enriched population of bud tip progenitors. When iBTOs were directed to differentiate into airway or alveolar cell types using well-established methods, they gave rise to organoids composed of organized airway or alveolar epithelium, respectively. Collectively, iBTOs are transcriptionally and functionally similar to in vivo BTPs, providing an important model for studying human lung development and differentiation.
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Affiliation(s)
- Renee F. C. Hein
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ansley S. Conchola
- Program in Cell and Molecular Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Alexis S. Fine
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Zhiwei Xiao
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tristan Frum
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Lindy K. Brastrom
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Mayowa A. Akinwale
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Charlie J. Childs
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yu-Hwai Tsai
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Emily M. Holloway
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Sha Huang
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - John Mahoney
- Therapeutics Lab, Cystic Fibrosis Foundation, Lexington, MA 02421, USA
| | - Idse Heemskerk
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jason R. Spence
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Program in Cell and Molecular Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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12
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Bzdega K, Karolak JA. Phenotypic spectrum of FGF10-related disorders: a systematic review. PeerJ 2022; 10:e14003. [PMID: 36124135 PMCID: PMC9482362 DOI: 10.7717/peerj.14003] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/13/2022] [Indexed: 01/19/2023] Open
Abstract
FGF10, as an FGFR2b-specific ligand, plays a crucial role during cell proliferation, multi-organ development, and tissue injury repair. The developmental importance of FGF10 has been emphasized by the identification of FGF10 abnormalities in human congenital disorders affecting different organs and systems. Single-nucleotide variants in FGF10 or FGF10-involving copy-number variant deletions have been reported in families with lacrimo-auriculo-dento-digital syndrome, aplasia of the lacrimal and salivary glands, or lethal lung developmental disorders. Abnormalities involving FGF10 have also been implicated in cleft lip and palate, myopia, or congenital heart disease. However, the exact developmental role of FGF10 and large phenotypic heterogeneity associated with FGF10 disruption remain incompletely understood. Here, we review human and animal studies and summarize the data on FGF10 mechanism of action, expression, multi-organ function, as well as its variants and their usefulness for clinicians and researchers.
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13
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Ahmadvand N, Lingampally A, Khosravi F, Vazquez-Armendariz AI, Rivetti S, Jones MR, Wilhelm J, Herold S, Barreto G, Koepke J, Samakovlis C, Carraro G, Zhang JS, Al Alam D, Bellusci S. Fgfr2b signaling is essential for the maintenance of the alveolar epithelial type 2 lineage during lung homeostasis in mice. Cell Mol Life Sci 2022; 79:302. [PMID: 35587837 PMCID: PMC9120111 DOI: 10.1007/s00018-022-04327-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 12/13/2022]
Abstract
Fibroblast growth factor receptor 2b (Fgfr2b) signaling is essential throughout lung development to form the alveolar epithelial lineage. However, its role in alveolar epithelial type 2 cells (AT2s) homeostasis was recently considered dispensable. SftpcCreERT2; Fgfr2bflox/flox; tdTomatoflox/flox mice were used to delete Fgfr2b expression in cells belonging to the AT2 lineage, which contains mature AT2s and a novel SftpcLow lineage-traced population called "injury activated alveolar progenitors" or IAAPs. Upon continuous tamoxifen exposure for either 1 or 2 weeks to delete Fgfr2b, a shrinking of the AT2 population is observed. Mature AT2s exit the cell cycle, undergo apoptosis and fail to form alveolospheres in vitro. However, the lung morphometry appears normal, suggesting the involvement of compensatory mechanisms. In mutant lungs, IAAPs which escaped Fgfr2b deletion expand, display enhanced alveolosphere formation in vitro and increase drastically their AT2 signature, suggesting differentiation towards mature AT2s. Interestingly, a significant increase in AT2s and decrease in IAPPs occurs after a 1-week tamoxifen exposure followed by an 8-week chase period. Although mature AT2s partially recover their alveolosphere formation capabilities, the IAAPs no longer display this property. Single-cell RNA seq analysis confirms that AT2s and IAAPs represent stable and distinct cell populations and recapitulate some of their characteristics observed in vivo. Our results underscore the essential role played by Fgfr2b signaling in the maintenance of the AT2 lineage in the adult lung during homeostasis and suggest that the IAAPs could represent a new population of AT2 progenitors.
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Affiliation(s)
- Negah Ahmadvand
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Arun Lingampally
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Farhad Khosravi
- Department of Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Ana Ivonne Vazquez-Armendariz
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
- Institute for Lung Health, Justus-Liebig University Giessen, Giessen, Germany
| | - Stefano Rivetti
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Matthew R Jones
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Jochen Wilhelm
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
- Institute for Lung Health, Justus-Liebig University Giessen, Giessen, Germany
| | - Susanne Herold
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
- Institute for Lung Health, Justus-Liebig University Giessen, Giessen, Germany
| | - Guillermo Barreto
- Laboratoire IMoPA, UMR 7365 CNRS, Biopole de l'Universite de Lorraine, 54505, Vandoeuvre-les-Nancy, France
| | - Janine Koepke
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Christos Samakovlis
- Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Gianni Carraro
- Department of Medicine, Cedars-Sinai Medical Center, Lung and Regenerative Medicine Institutes, Los Angeles, CA, 90027, USA
| | - Jin-San Zhang
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, Zhejiang, China
| | - Denise Al Alam
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Los Angeles, CA, USA
| | - Saverio Bellusci
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, Zhejiang, China.
- Laboratory of Extracellular Lung Matrix Remodelling, Department of Internal Medicine, Cardio-Pulmonary Institute and Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany.
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14
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Abstract
The trachea is a long tube that enables air passage between the larynx and the bronchi. C-shaped cartilage rings on the ventral side stabilise the structure. On its esophagus-facing dorsal side, deformable smooth muscle facilitates the passage of food in the esophagus. While the symmetry break along the dorsal-ventral axis is well understood, the molecular mechanism that results in the periodic Sox9 expression pattern that translates into the cartilage rings has remained elusive. Here, we review the molecular regulatory interactions that have been elucidated, and discuss possible patterning mechanisms. Understanding the principles of self-organisation is important, both to define biomedical interventions and to enable tissue engineering.
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Affiliation(s)
- Dagmar Iber
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
- *Correspondence: Dagmar Iber,
| | - Malte Mederacke
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
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15
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Varghese B, Ling Z, Ren X. Reconstructing the pulmonary niche with stem cells: a lung story. Stem Cell Res Ther 2022; 13:161. [PMID: 35410254 PMCID: PMC8996210 DOI: 10.1186/s13287-022-02830-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 03/23/2022] [Indexed: 12/25/2022] Open
Abstract
The global burden of pulmonary disease highlights an overwhelming need in improving our understanding of lung development, disease, and treatment. It also calls for further advances in our ability to engineer the pulmonary system at cellular and tissue levels. The discovery of human pluripotent stem cells (hPSCs) offsets the relative inaccessibility of human lungs for studying developmental programs and disease mechanisms, all the while offering a potential source of cells and tissue for regenerative interventions. This review offers a perspective on where the lung stem cell field stands in terms of accomplishing these ambitious goals. We will trace the known stages and pathways involved in in vivo lung development and how they inspire the directed differentiation of stem and progenitor cells in vitro. We will also recap the efforts made to date to recapitulate the lung stem cell niche in vitro via engineered cell–cell and cell-extracellular matrix (ECM) interactions.
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Affiliation(s)
- Barbie Varghese
- Department of Biomedical Engineering, Carnegie Mellon University, Scott Hall 4N111, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Zihan Ling
- Department of Biomedical Engineering, Carnegie Mellon University, Scott Hall 4N111, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Xi Ren
- Department of Biomedical Engineering, Carnegie Mellon University, Scott Hall 4N111, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA.
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16
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Sox9 is involved in the thyroid differentiation program and is regulated by crosstalk between TSH, TGFβ and thyroid transcription factors. Sci Rep 2022; 12:2144. [PMID: 35140269 PMCID: PMC8828901 DOI: 10.1038/s41598-022-06004-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 01/21/2022] [Indexed: 11/09/2022] Open
Abstract
While the signaling pathways and transcription factors involved in the differentiation of thyroid follicular cells, both in embryonic and adult life, are increasingly well understood, the underlying mechanisms and potential crosstalk between the thyroid transcription factors Nkx2.1, Foxe1 and Pax8 and inductive signals remain unclear. Here, we focused on the transcription factor Sox9, which is expressed in Nkx2.1-positive embryonic thyroid precursor cells and is maintained from embryonic development to adulthood, but its function and control are unknown. We show that two of the main signals regulating thyroid differentiation, TSH and TGFβ, modulate Sox9 expression. Specifically, TSH stimulates the cAMP/PKA pathway to transcriptionally upregulate Sox9 mRNA and protein expression, a mechanism that is mediated by the binding of CREB to a CRE site within the Sox9 promoter. Contrastingly, TGFβ signals through Smad proteins to inhibit TSH-induced Sox9 transcription. Our data also reveal that Sox9 transcription is regulated by the thyroid transcription factors, particularly Pax8. Interestingly, Sox9 significantly increased the transcriptional activation of Pax8 and Foxe1 promoters and, consequently, their expression, but had no effect on Nkx2.1. Our study establishes the involvement of Sox9 in thyroid follicular cell differentiation and broadens our understanding of transcription factor regulation of thyroid function.
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17
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Li R, Zhang Y, Garg A, Sui P, Sun X. E3 ubiquitin ligase FBXW7 balances airway cell fates. Dev Biol 2022; 483:89-97. [PMID: 34998785 DOI: 10.1016/j.ydbio.2021.12.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/10/2021] [Accepted: 12/30/2021] [Indexed: 12/15/2022]
Abstract
The airway epithelium is composed of multiple cell types each with designated roles. A stereotyped ratio of these cells is essential for proper airway function. Imbalance of airway cell types underlies many lung diseases, including chronic obstructive pulmonary disease (COPD) and asthma. While a number of signals and transcription factors have been implicated in airway cell specification, how cell numbers are coordinated, especially at the protein level is poorly understood. Here we show that in the mouse trachea which contain epithelial cell types similar to human airway, epithelium-specific inactivation of Fbxw7, which encodes an E3 ubiquitin ligase, led to reduced club and ciliated cells, increased goblet cells, and ectopic P63-negative, Keratin5-positive transitory basal cells in the luminal layer. The protein levels of FBXW7 targets including NOTCH1, KLF5 and TGIF were increased. Inactivation of either Notch1, Klf5 but not Tgif genes in the mutant background led to attenuation of selected aspects of the phenotypes, suggesting that FBXW7 acts through different targets to control different cell fates. These findings demonstrate that protein-level regulation by the ubiquitin proteasome system is critical for balancing airway cell fates.
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Affiliation(s)
- Rongbo Li
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, 92093, USA.
| | - Yan Zhang
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Ankur Garg
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Pengfei Sui
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Xin Sun
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, 92093, USA; Division of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA.
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18
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GLI1+ cells are a source of repair-supportive mesenchymal cells (RSMCs) during airway epithelial regeneration. Cell Mol Life Sci 2022; 79:581. [PMID: 36333491 PMCID: PMC9636301 DOI: 10.1007/s00018-022-04599-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/29/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022]
Abstract
Repair-supportive mesenchymal cells (RSMCs) have been recently reported in the context of naphthalene (NA)-induced airway injury and regeneration. These cells transiently express smooth muscle actin (Acta2) and are enriched with platelet-derived growth factor receptor alpha (Pdgfra) and fibroblast growth factor 10 (Fgf10) expression. Genetic deletion of Ctnnb1 (gene coding for beta catenin) or Fgf10 in these cells using the Acta2-Cre-ERT2 driver line after injury (defined as NA-Tam condition; Tam refers to tamoxifen) led to impaired repair of the airway epithelium. In this study, we demonstrate that RSMCs are mostly captured using the Acta2-Cre-ERT2 driver when labeling occurs after (NA-Tam condition) rather than before injury (Tam-NA condition), and that their expansion occurs mostly
between days 3 and 7 following NA treatment. Previous studies have shown that lineage-traced peribronchial GLI1+ cells are transiently amplified after NA injury. Here, we report that Gli1 expression is enriched in RSMCs. Using lineage tracing with Gli1Cre−ERT2 mice combined with genetic inactivation of Fgf10, we show that GLI1+ cells with Fgf10 deletion fail to amplify around the injured airways, thus resulting in impaired airway epithelial repair. Interestingly, Fgf10 expression is not upregulated in GLI1+ cells following NA treatment, suggesting that epithelial repair is mostly due to the increased number of Fgf10-expressing GLI1+ cells. Co-culture of SCGB1A1+ cells with GLI1+ cells isolated from non-injured or injured lungs showed that GLI1+ cells from these two conditions are similarly capable of supporting bronchiolar organoid (or bronchiolosphere) formation. Single-cell RNA sequencing on sorted lineage-labeled cells showed that the RSMC signature resembles that of alveolar fibroblasts. Altogether, our study provides strong evidence for the involvement of mesenchymal progenitors in airway epithelial regeneration and highlights the critical role played by Fgf10-expressing GLI1+ cells in this context.
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19
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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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20
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Scholl A, Ndoja I, Jiang L. Drosophila Trachea as a Novel Model of COPD. Int J Mol Sci 2021; 22:ijms222312730. [PMID: 34884534 PMCID: PMC8658011 DOI: 10.3390/ijms222312730] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/23/2022] Open
Abstract
COPD, a chronic obstructive pulmonary disease, is one of the leading causes of death worldwide. Clinical studies and research in rodent models demonstrated that failure of repair mechanisms to cope with increased ROS and inflammation in the lung leads to COPD. Despite this progress, the molecular mechanisms underlying the development of COPD remain poorly understood, resulting in a lack of effective treatments. Thus, an informative, simple model is highly valued and desired. Recently, the cigarette smoke-induced Drosophila COPD model showed a complex set of pathological phenotypes that resemble those seen in human COPD patients. The Drosophila trachea has been used as a premier model to reveal the mechanisms of tube morphogenesis. The association of these mechanisms to structural changes in COPD can be analyzed by using Drosophila trachea. Additionally, the timeline of structural damage, ROS, and inflammation can be studied in live organisms using fluorescently-tagged proteins. The related function of human COPD genes identified by GWAS can be screened using respective fly homologs. Finally, the Drosophila trachea can be used as a high-throughput drug screening platform to identify novel treatments for COPD. Therefore, Drosophila trachea is an excellent model that is complementary to rodent COPD models.
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21
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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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22
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Liberti DC, Morrisey EE. Organoid models: assessing lung cell fate decisions and disease responses. Trends Mol Med 2021; 27:1159-1174. [PMID: 34674972 DOI: 10.1016/j.molmed.2021.09.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 12/17/2022]
Abstract
Organoids can be derived from various cell types in the lung, and they provide a reproducible and tractable model for understanding the complex signals driving cell fate decisions in a regenerative context. In this review, we provide a retrospective account of organoid methodologies and outline new opportunities for optimizing these methods to further explore emerging concepts in lung biology. Moreover, we examine the benefits of integrating organoid assays with in vivo modeling to explore how the various niches and compartments in the respiratory system respond to both acute and chronic lung disease. The strategic implementation and improvement of organoid techniques will provide exciting new opportunities to understand and identify new therapeutic approaches to ameliorate lung disease states.
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Affiliation(s)
- Derek C Liberti
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Edward E Morrisey
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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23
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Gajjala PR, Kasam RK, Soundararajan D, Sinner D, Huang SK, Jegga AG, Madala SK. Dysregulated overexpression of Sox9 induces fibroblast activation in pulmonary fibrosis. JCI Insight 2021; 6:e152503. [PMID: 34520400 PMCID: PMC8564901 DOI: 10.1172/jci.insight.152503] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/09/2021] [Indexed: 02/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal fibrotic lung disease associated with unremitting fibroblast activation including fibroblast-to-myofibroblast transformation (FMT), migration, resistance to apoptotic clearance, and excessive deposition of extracellular matrix (ECM) proteins in the distal lung parenchyma. Aberrant activation of lung-developmental pathways is associated with severe fibrotic lung disease; however, the mechanisms through which these pathways activate fibroblasts in IPF remain unclear. Sry-box transcription factor 9 (Sox9) is a member of the high-mobility group box family of DNA-binding transcription factors that are selectively expressed by epithelial cell progenitors to modulate branching morphogenesis during lung development. We demonstrate that Sox9 is upregulated via MAPK/PI3K-dependent signaling and by the transcription factor Wilms' tumor 1 in distal lung-resident fibroblasts in IPF. Mechanistically, using fibroblast activation assays, we demonstrate that Sox9 functions as a positive regulator of FMT, migration, survival, and ECM production. Importantly, our in vivo studies demonstrate that fibroblast-specific deletion of Sox9 is sufficient to attenuate collagen deposition and improve lung function during TGF-α-induced pulmonary fibrosis. Using a mouse model of bleomycin-induced pulmonary fibrosis, we show that myofibroblast-specific Sox9 overexpression augments fibroblast activation and pulmonary fibrosis. Thus, Sox9 functions as a profibrotic transcription factor in activating fibroblasts, illustrating the potential utility of targeting Sox9 in IPF treatment.
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Affiliation(s)
- Prathibha R Gajjala
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine and
| | - Rajesh K Kasam
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine and
| | - Divyalakshmi Soundararajan
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine and
| | - Debora Sinner
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Divisions of Neonatology and Pulmonary Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Steven K Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Anil G Jegga
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Satish K Madala
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Division of Pulmonary Medicine and
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24
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Kolobaric A, Vukojevic K, Brekalo S, Misković J, Ries M, Lasic Arapovic L, Soljic V. Expression and localization of FGFR1, FGFR2 and CTGF during normal human lung development. Acta Histochem 2021; 123:151719. [PMID: 33962151 DOI: 10.1016/j.acthis.2021.151719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022]
Abstract
Aim of our study was to provide insight into the temporal and spatial expression of FGFR1, FGFR2 and CTGF during normal human lung development which may have an important impact on understanding occurrence of developmental lung anomalies. Morphological parameters were analysed using double immunofluorescence on human embryonal (6th and 7th developmental week-dw) and foetal (8th, 9th and 16th developmental week) human lung samples. FGFR1 and FGFR2 was positive during all the dw in both the epithelium and mesenchyme. The highest number of FGFR1 positive cells was observed during the 6th dw (112/mm2) and 9th dw (87/mm2) in the epithelium compared to the 7th, 8th and 16th dw (Kruskal-Wallis test, p < 0.001, p < 0.0001). The highest number of FGFR1 positive cells in the mesenchyme was observed during the 8th dw (19/mm2) and 16th dw (13/mm2) compared to the 6th, 7th, and 9th dw (Kruskal-Wallis test, p < 0.001, p < 0.0001). The number of FGFR1 positive cells in the epithelium was higher for FGFR2 compared to number of positive cells (Mann-Whitney test, p < 0.0001). FGFR2 showed the highest number in the epithelium during the 7th dw (111/mm2) and 9th dw (87/mm2) compared to 6th, 8th and 16th dw (Kruskal-Wallis test, p < 0.001, p < 0.0001, p < 0.01 respectively). The highest number of FGFR2 positive cells in the mesenchyme was observed during the 9th dw (26/mm2), compared to the 6th, 7th,8th and 16th dw (Kruskal-Wallis test, p < 0.0001), while the number of FGFR2 positive cells in the epithelium was significantly higher than in the mesenchyme (Mann-Whitney test, p < 0.0001). CTGF was negative in both epithelium and mesenchyme during all except the 16th dw in the mesenchyme where it co-localized with FGFR2. FGFR1 and FGFR2 might be essential for epithelial-mesenchymal interactions that determine epithelial branching and mesenchymal growth during early lung development. Sudden increase in FGF1 in the epithelium and FGF2 in the mesenchyme in the foetus at 9th dw could be associated with the onset of foetal breathing movements. CTGF first appear during the foetal lung development.
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Lang C, Conrad L, Iber D. Organ-Specific Branching Morphogenesis. Front Cell Dev Biol 2021; 9:671402. [PMID: 34150767 PMCID: PMC8212048 DOI: 10.3389/fcell.2021.671402] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/06/2021] [Indexed: 01/09/2023] Open
Abstract
A common developmental process, called branching morphogenesis, generates the epithelial trees in a variety of organs, including the lungs, kidneys, and glands. How branching morphogenesis can create epithelial architectures of very different shapes and functions remains elusive. In this review, we compare branching morphogenesis and its regulation in lungs and kidneys and discuss the role of signaling pathways, the mesenchyme, the extracellular matrix, and the cytoskeleton as potential organ-specific determinants of branch position, orientation, and shape. Identifying the determinants of branch and organ shape and their adaptation in different organs may reveal how a highly conserved developmental process can be adapted to different structural and functional frameworks and should provide important insights into epithelial morphogenesis and developmental disorders.
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Affiliation(s)
- Christine Lang
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Lisa Conrad
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
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26
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Pang J, Luo Y, Wei D, Cao Z, Qi X, Song M, Liu Y, Li Z, Zhang J, Li B, Chen J, Wang J, Wang C. Comparative Transcriptome Analyses Reveal a Transcriptional Landscape of Human Silicosis Lungs and Provide Potential Strategies for Silicosis Treatment. Front Genet 2021; 12:652901. [PMID: 34149803 PMCID: PMC8210851 DOI: 10.3389/fgene.2021.652901] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022] Open
Abstract
Silicosis is a fatal occupational lung disease which currently has no effective clinical cure. Recent studies examining the underlying mechanism of silicosis have primarily examined experimental models, which may not perfectly reflect the nature of human silicosis progression. A comprehensive profiling of the molecular changes in human silicosis lungs is urgently needed. Here, we conducted RNA sequencing (RNA-seq) on the lung tissues of 10 silicosis patients and 7 non-diseased donors. A total of 2,605 differentially expressed genes (DEGs) and critical pathway changes were identified in human silicosis lungs. Further, the DEGs in silicosis were compared with those in idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary diseases (COPD), to extend current knowledge about the disease mechanisms and develop potential drugs. This analysis revealed both common and specific regulations in silicosis, along with several critical genes (e.g., MUC5AC and FGF10), which are potential drug targets for silicosis treatment. Drugs including Plerixafor and Retinoic acid were predicted as potential candidates in treating silicosis. Overall, this study provides the first transcriptomic fingerprint of human silicosis lungs. The comparative transcriptome analyses comprehensively characterize pathological regulations resulting from silicosis, and provide valuable cues for silicosis treatment.
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Affiliation(s)
- Junling Pang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Ya Luo
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Dong Wei
- Transplant Center, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Zhujie Cao
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Xianmei Qi
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Meiyue Song
- Department of Pulmonary and Critical Care Medicine/Others, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Ying Liu
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhaoguo Li
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jin Zhang
- Department of Thoracic Surgery and Lung Transplantation, China-Japan Friendship Hospital, Beijing, China
| | - Baicun Li
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Jingyu Chen
- Transplant Center, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China.,Department of Thoracic Surgery and Lung Transplantation, China-Japan Friendship Hospital, Beijing, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Chen Wang
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
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27
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Chatzeli L, Teshima THN, Hajihosseini MK, Gaete M, Proctor GB, Tucker AS. Comparing development and regeneration in the submandibular gland highlights distinct mechanisms. J Anat 2021; 238:1371-1385. [PMID: 33455001 PMCID: PMC8128775 DOI: 10.1111/joa.13387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/29/2022] Open
Abstract
A common question in organ regeneration is the extent to which regeneration recapitulates embryonic development. To investigate this concept, we compared the expression of two highly interlinked and essential genes for salivary gland development, Sox9 and Fgf10, during submandibular gland development, homeostasis and regeneration. Salivary gland duct ligation/deligation model was used as a regenerative model. Fgf10 and Sox9 expression changed during regeneration compared to homeostasis, suggesting that these key developmental genes play important roles during regeneration, however, significantly both displayed different patterns of expression in the regenerating gland compared to the developing gland. Regenerating glands, which during homeostasis had very few weakly expressing Sox9-positive cells in the striated/granular ducts, displayed elevated expression of Sox9 within these ducts. This pattern is in contrast to embryonic development, where Sox9 expression was absent in the proximally developing ducts. However, similar to the elevated expression at the distal tip of the epithelium in developing salivary glands, regenerating glands displayed elevated expression in a subpopulation of acinar cells, which during homeostasis expressed Sox9 at lower levels. A shift in expression of Fgf10 was observed from a widespread mesenchymal pattern during organogenesis to a more limited and predominantly epithelial pattern during homeostasis in the adult. This restricted expression in epithelial cells was maintained during regeneration, with no clear upregulation in the surrounding mesenchyme, as might be expected if regeneration recapitulated development. As both Fgf10 and Sox9 were upregulated in proximal ducts during regeneration, this suggests that the positive regulation of Sox9 by Fgf10, essential during development, is partially reawakened during regeneration using this model. Together these data suggest that developmentally important genes play a key role in salivary gland regeneration but do not precisely mimic the roles observed during development.
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Affiliation(s)
- Lemonia Chatzeli
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonUK
| | - Tathyane H. N. Teshima
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonUK
- Department of Oral MedicineUCL Eastman Dental InstituteLondonUK
| | | | - Marcia Gaete
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonUK
- Department of AnatomyFaculty of MedicinePontificia Universidad Católica de ChileSantiagoChile
| | - Gordon B. Proctor
- Centre for Host‐Microbiome InteractionsKing's College of LondonLondonUK
| | - Abigail S. Tucker
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonUK
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28
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Conrad L, Runser SVM, Fernando Gómez H, Lang CM, Dumond MS, Sapala A, Schaumann L, Michos O, Vetter R, Iber D. The biomechanical basis of biased epithelial tube elongation in lung and kidney development. Development 2021; 148:261770. [PMID: 33946098 PMCID: PMC8126414 DOI: 10.1242/dev.194209] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 03/16/2021] [Indexed: 01/16/2023]
Abstract
During lung development, epithelial branches expand preferentially in a longitudinal direction. This bias in outgrowth has been linked to a bias in cell shape and in the cell division plane. How this bias arises is unknown. Here, we show that biased epithelial outgrowth occurs independent of the surrounding mesenchyme, of preferential turnover of the extracellular matrix at the bud tips and of FGF signalling. There is also no evidence for actin-rich filopodia at the bud tips. Rather, we find epithelial tubes to be collapsed during early lung and kidney development, and we observe fluid flow in the narrow tubes. By simulating the measured fluid flow inside segmented narrow epithelial tubes, we show that the shear stress levels on the apical surface are sufficient to explain the reported bias in cell shape and outgrowth. We use a cell-based vertex model to confirm that apical shear forces, unlike constricting forces, can give rise to both the observed bias in cell shapes and tube elongation. We conclude that shear stress may be a more general driver of biased tube elongation beyond its established role in angiogenesis. This article has an associated 'The people behind the papers' interview.
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Affiliation(s)
- Lisa Conrad
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Steve Vincent Maurice Runser
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Harold Fernando Gómez
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Christine Michaela Lang
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Mathilde Sabine Dumond
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Aleksandra Sapala
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Laura Schaumann
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Odyssé Michos
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Roman Vetter
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
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29
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Liberti DC, Kremp MM, Liberti WA, Penkala IJ, Li S, Zhou S, Morrisey EE. Alveolar epithelial cell fate is maintained in a spatially restricted manner to promote lung regeneration after acute injury. Cell Rep 2021; 35:109092. [PMID: 33979629 PMCID: PMC8220578 DOI: 10.1016/j.celrep.2021.109092] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/23/2021] [Accepted: 04/16/2021] [Indexed: 02/07/2023] Open
Abstract
Alveolar epithelial type 2 (AT2) cells integrate signals from multiple molecular pathways to proliferate and differentiate to drive regeneration of the lung alveolus. Utilizing in vivo genetic and ex vivo organoid models, we investigated the role of Fgfr2 signaling in AT2 cells across the lifespan and during adult regeneration after influenza infection. We show that, although dispensable for adult homeostasis, Fgfr2 restricts AT2 cell fate during postnatal lung development. Using an unbiased computational imaging approach, we demonstrate that Fgfr2 promotes AT2 cell proliferation and restrains differentiation in actively regenerating areas after injury. Organoid assays reveal that Fgfr2-deficient AT2 cells remain competent to respond to multiple parallel proliferative inputs. Moreover, genetic blockade of AT2 cell cytokinesis demonstrates that cell division and differentiation are uncoupled during alveolar regeneration. These data reveal that Fgfr2 maintains AT2 cell fate, balancing proliferation and differentiation during lung alveolar regeneration.
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Affiliation(s)
- Derek C Liberti
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Madison M Kremp
- Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - William A Liberti
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Ian J Penkala
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Shanru Li
- Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Su Zhou
- Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Edward E Morrisey
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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30
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Abstract
Branching morphogenesis generates epithelial trees which facilitate gas exchange, filtering, as well as secretion processes with their large surface to volume ratio. In this review, we focus on the developmental mechanisms that control the early stages of lung branching morphogenesis. Lung branching morphogenesis involves the stereotypic, recurrent definition of new branch points, subsequent epithelial budding, and lung tube elongation. We discuss current models and experimental evidence for each of these steps. Finally, we discuss the role of the mesenchyme in determining the organ-specific shape.
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Affiliation(s)
- Dagmar Iber
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Basel, Switzerland; Swiss Institute of Bioinformatics (SIB), Basel, Switzerland.
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31
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Abstract
PURPOSE OF REVIEW In 2013, the association between T-Box factor 4 (TBX4) variants and pulmonary arterial hypertension (PAH) has first been described. Now - in 2020 - growing evidence is emerging indicating that TBX4 variants associate with a wide spectrum of lung disorders. RECENT FINDINGS TBX4 variants are enriched in both children and adults with PAH. The clinical phenotype associated with a TBX4 variant seems to be milder than that in other PAH-associated gene mutations. Further, TBX4 variants have increasingly been associated with a variety of clinical and histopathological phenotypes, including lethal developmental parenchymal lung diseases such as not only acinar dysplasia in neonates, but also less outspoken parenchymal lung diseases in children and adults. SUMMARY The clinical phenotype of a TBX4 variant has recently been recognised to expand from bone disorders to different types of lung diseases. Recent data suggest that variants of TBX4, a transcription factor known to be an important regulator in embryonic development, are not rare in both children and adults with PAH and/or developmental parenchymal lung diseases.
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32
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López-Márquez A, Carrasco-López C, Fernández-Méndez C, Santisteban P. Unraveling the Complex Interplay Between Transcription Factors and Signaling Molecules in Thyroid Differentiation and Function, From Embryos to Adults. Front Endocrinol (Lausanne) 2021; 12:654569. [PMID: 33959098 PMCID: PMC8095082 DOI: 10.3389/fendo.2021.654569] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/29/2021] [Indexed: 12/29/2022] Open
Abstract
Thyroid differentiation of progenitor cells occurs during embryonic development and in the adult thyroid gland, and the molecular bases of these complex and finely regulated processes are becoming ever more clear. In this Review, we describe the most recent advances in the study of transcription factors, signaling molecules and regulatory pathways controlling thyroid differentiation and development in the mammalian embryo. We also discuss the maintenance of the adult differentiated phenotype to ensure the biosynthesis of thyroid hormones. We will focus on endoderm-derived thyroid epithelial cells, which are responsible for the formation of the thyroid follicle, the functional unit of the thyroid gland. The use of animal models and pluripotent stem cells has greatly aided in providing clues to the complicated puzzle of thyroid development and function in adults. The so-called thyroid transcription factors - Nkx2-1, Foxe1, Pax8 and Hhex - were the first pieces of the puzzle identified in mice. Other transcription factors, either acting upstream of or directly with the thyroid transcription factors, were subsequently identified to, almost, complete the puzzle. Among them, the transcription factors Glis3, Sox9 and the cofactor of the Hippo pathway Taz, have emerged as important players in thyroid differentiation and development. The involvement of signaling molecules increases the complexity of the puzzle. In this context, the importance of Bmps, Fgfs and Shh signaling at the onset of development, and of TSH, IGF1 and TGFβ both at the end of terminal differentiation in embryos and in the adult thyroid, are well recognized. All of these aspects are covered herein. Thus, readers will be able to visualize the puzzle of thyroid differentiation with most - if not all - of the pieces in place.
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Affiliation(s)
- Arístides López-Márquez
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) y Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Laboratorio de Investigación Aplicada en Enfermedades Neuromusculares, Unidad de Patología Neuromuscular, Servicio de Neuropediatría, Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Carlos Carrasco-López
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) y Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Celia Fernández-Méndez
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) y Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Pilar Santisteban
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) y Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: Pilar Santisteban,
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33
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Zhang Y, Fons JM, Hajihosseini MK, Zhang T, Tucker AS. An Essential Requirement for Fgf10 in Pinna Extension Sheds Light on Auricle Defects in LADD Syndrome. Front Cell Dev Biol 2020; 8:609643. [PMID: 33363172 PMCID: PMC7758485 DOI: 10.3389/fcell.2020.609643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022] Open
Abstract
The pinna (or auricle) is part of the external ear, acting to capture and funnel sound toward the middle ear. The pinna is defective in a number of craniofacial syndromes, including Lacrimo-auriculo-dento-digital (LADD) syndrome, which is caused by mutations in FGF10 or its receptor FGFR2b. Here we study pinna defects in the Fgf10 knockout mouse. We show that Fgf10 is expressed in both the muscles and forming cartilage of the developing external ear, with loss of signaling leading to a failure in the normal extension of the pinna over the ear canal. Conditional knockout of Fgf10 in the neural crest fails to recapitulate this phenotype, suggesting that the defect is due to loss of Fgf10 from the muscles, or that this source of Fgf10 can compensate for loss in the forming cartilage. The defect in the Fgf10 null mouse is driven by a reduction in proliferation, rather than an increase in cell death, which can be partially phenocopied by inhibiting cell proliferation in explant culture. Overall, we highlight the mechanisms that could lead to the phenotype observed in LADD syndrome patients and potentially explain the formation of similar low-set and cup shaped ears observed in other syndromes.
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Affiliation(s)
- Yang Zhang
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, United Kingdom
- Ear Nasal and Throat (ENT) Institute, Eye and Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Juan M. Fons
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, United Kingdom
| | | | - Tianyu Zhang
- Ear Nasal and Throat (ENT) Institute, Eye and Ear Nose and Throat Hospital, Fudan University, Shanghai, China
- Department of Facial Plastic and Reconstructive Surgery, Eye & Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Abigail S. Tucker
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, United Kingdom
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34
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Moiseenko A, Vazquez-Armendariz AI, Kheirollahi V, Chu X, Tata A, Rivetti S, Günther S, Lebrigand K, Herold S, Braun T, Mari B, De Langhe S, Kwapiszewska G, Günther A, Chen C, Seeger W, Tata PR, Zhang JS, Bellusci S, El Agha E. Identification of a Repair-Supportive Mesenchymal Cell Population during Airway Epithelial Regeneration. Cell Rep 2020; 33:108549. [PMID: 33357434 PMCID: PMC8363050 DOI: 10.1016/j.celrep.2020.108549] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/12/2020] [Accepted: 12/02/2020] [Indexed: 01/11/2023] Open
Abstract
Tissue regeneration requires coordinated and dynamic remodeling of stem and progenitor cells and the surrounding niche. Although the plasticity of epithelial cells has been well explored in many tissues, the dynamic changes occurring in niche cells remain elusive. Here, we show that, during lung repair after naphthalene injury, a population of PDGFRα+ cells emerges in the non-cartilaginous conducting airway niche, which is normally populated by airway smooth muscle cells (ASMCs). This cell population, which we term “repair-supportive mesenchymal cells” (RSMCs), is distinct from conventional ASMCs, which have previously been shown to contribute to epithelial repair. Gene expression analysis on sorted lineage-labeled cells shows that RSMCs express low levels of ASMC markers, but high levels of the pro-regenerative marker Fgf10. Organoid co-cultures demonstrate an enhanced ability for RSMCs in supporting club-cell growth. Our study highlights the dynamics of mesenchymal cells in the airway niche and has implications for chronic airway-injury-associated diseases. Moiseenko et al. explore the dynamics of mesenchymal cells in the peribronchial niche in response to airway injury. They identify a population of mesenchymal cells located in close proximity to airway smooth muscle cells (ASMCs). This population, termed “repair-supportive mesenchymal cells” (RSMCs), is recruited to facilitate airway epithelial regeneration.
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Affiliation(s)
- Alena Moiseenko
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany
| | - Ana Ivonne Vazquez-Armendariz
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany; Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Vahid Kheirollahi
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany
| | - Xuran Chu
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany
| | - Aleksandra Tata
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Stefano Rivetti
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany
| | - Stefan Günther
- Max Planck Institute for Heart and Lung Research, W.G. Kerckhoff Institute, 61231 Bad Nauheim, Germany
| | | | - Susanne Herold
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany; Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Thomas Braun
- Max Planck Institute for Heart and Lung Research, W.G. Kerckhoff Institute, 61231 Bad Nauheim, Germany
| | - Bernard Mari
- Université Côte d'Azur, CNRS, IPMC, 06560 Valbonne, France
| | - Stijn De Langhe
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama, Birmingham, Birmingham, AL 35294, USA
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; Otto Loewi Research Center, Division of Physiology, Medical University of Graz, 8010 Graz, Austria
| | - Andreas Günther
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany
| | - Chengshui Chen
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China
| | - Werner Seeger
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany; Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Purushothama Rao Tata
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jin-San Zhang
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Saverio Bellusci
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany.
| | - Elie El Agha
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, China; Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany; Institute for Lung Health (ILH), 35392 Giessen, Germany.
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35
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Chen X, Zhao C, Zhang C, Li Q, Chen J, Cheng L, Zhou J, Su X, Song Y. Vagal-α7nAChR signaling promotes lung stem cells regeneration via fibroblast growth factor 10 during lung injury repair. Stem Cell Res Ther 2020; 11:230. [PMID: 32522255 PMCID: PMC7288553 DOI: 10.1186/s13287-020-01757-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/19/2020] [Accepted: 06/01/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Proliferation and transdifferentiation of lung stem cells (LSCs) could promote lung injury repair. The distal airways of the lung are innervated by the vagus nerve. Vagal-alpha7 nicotinic acetylcholine receptor (α7nAChR) signaling plays a key role in regulating lung infection and inflammation; however, whether this pathway could regulate LSCs remains unknown. METHODS LSCs (Sca1+CD45-CD31- cells) were isolated and characterized according to a previously published protocol. α7nAChR knockout mice and wild-type littermates were intratracheally challenged with lipopolysaccharide (LPS) to induce lung injury. A cervical vagotomy was performed to study the regulatory effect of the vagus nerve on LSCs-mediated lung repair. α7nAChR agonist or fibroblast growth factor 10 (FGF10) was intratracheally delivered to mice. A single-cell suspension of lung cells was analyzed by flow cytometry. Lung tissues were collected for histology, quantitative real-time polymerase chain reaction (RT-PCR), and immunohistochemistry. RESULTS We found that LSCs maintained multilineage differentiation ability and transdifferentiated into alveolar epithelial type II cells (AEC2) following FGF10 stimulation in vitro. Vagotomy or α7nAChR deficiency reduced lung Ki67+ LSCs expansion and hampered the resolution of LPS-induced lung injury. Vagotomy or α7nAChR deficiency decreased lung FGF10 expression and the number of AEC2. The α7nAChR agonist-GTS-21 reversed the reduction of FGF10 expression in the lungs, as well as the number of Ki67+ cells, LSCs, Ki67+ LSCs, and AEC2 in LPS-challenged vagotomized mice. Supplementation with FGF10 counteracted the loss of Ki67+ LSCs and AEC2 in LPS-challenged α7nAChR knockout mice. CONCLUSIONS The vagus nerve deploys α7nAChR to enhance LSCs proliferation and transdifferentiation and promote lung repair in an FGF10-dependent manner during LPS-induced lung injury.
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Affiliation(s)
- Xiaoyan Chen
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University and Shanghai Respiratory Research Institute, 180 Fenglin Road, Shanghai, 200032, People's Republic of China
| | - Caiqi Zhao
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, People's Republic of China
| | - Cuiping Zhang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University and Shanghai Respiratory Research Institute, 180 Fenglin Road, Shanghai, 200032, People's Republic of China
| | - Qingmei Li
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, People's Republic of China
| | - Jie Chen
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, People's Republic of China
| | - Lianping Cheng
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, People's Republic of China
| | - Jian Zhou
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University and Shanghai Respiratory Research Institute, 180 Fenglin Road, Shanghai, 200032, People's Republic of China
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, People's Republic of China.
| | - Yuanlin Song
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University and Shanghai Respiratory Research Institute, 180 Fenglin Road, Shanghai, 200032, People's Republic of China. .,Department of Pulmonary Medicine, Zhongshan Hospital, Qingpu Branch, Fudan University, Shanghai, People's Republic of China. .,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, People's Republic of China.
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36
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Conway RF, Frum T, Conchola AS, Spence JR. Understanding Human Lung Development through In Vitro Model Systems. Bioessays 2020; 42:e2000006. [PMID: 32310312 PMCID: PMC7433239 DOI: 10.1002/bies.202000006] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/28/2020] [Indexed: 12/19/2022]
Abstract
An abundance of information about lung development in animal models exists; however, comparatively little is known about lung development in humans. Recent advances using primary human lung tissue combined with the use of human in vitro model systems, such as human pluripotent stem cell-derived tissue, have led to a growing understanding of the mechanisms governing human lung development. They have illuminated key differences between animal models and humans, underscoring the need for continued advancements in modeling human lung development and utilizing human tissue. This review discusses the use of human tissue and the use of human in vitro model systems that have been leveraged to better understand key regulators of human lung development and that have identified uniquely human features of development. This review also examines the implementation and challenges of human model systems and discusses how they can be applied to address knowledge gaps.
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Affiliation(s)
- Renee F Conway
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48104, USA
| | - Tristan Frum
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI, 48104, USA
| | - Ansley S Conchola
- Cell and Molecular Biology (CMB) Training Program, University of Michigan Medical School, Ann Arbor, MI, 48104, USA
| | - Jason R Spence
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48104, USA
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI, 48104, USA
- Cell and Molecular Biology (CMB) Training Program, University of Michigan Medical School, Ann Arbor, MI, 48104, USA
- Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI, 48104, USA
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37
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Durel JF, Nerurkar NL. Mechanobiology of vertebrate gut morphogenesis. Curr Opin Genet Dev 2020; 63:45-52. [PMID: 32413823 DOI: 10.1016/j.gde.2020.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/09/2020] [Indexed: 01/15/2023]
Abstract
Approximately a century after D'Arcy Thompson's On Growth and Form, there continues to be widespread interest in the biophysical and mathematical basis of morphogenesis. Particularly over the past 20 years, this interest has led to great advances in our understanding of a broad range of processes in embryonic development through a quantitative, mechanically driven framework. Nowhere in vertebrate development is this more apparent than the development of endodermally derived organs. Here, we discuss recent advances in the study of gut development that have emerged primarily from mechanobiology-motivated approaches that span from gut tube morphogenesis and later organogenesis of the respiratory and gastrointestinal systems.
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Affiliation(s)
- John F Durel
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
| | - Nandan L Nerurkar
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States; Department of Genetics and Development, Columbia University Medical Center, New York, NY 10032, United States.
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38
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Vincent M, Karolak JA, Deutsch G, Gambin T, Popek E, Isidor B, Szafranski P, Le Caignec C, Stankiewicz P. Clinical, Histopathological, and Molecular Diagnostics in Lethal Lung Developmental Disorders. Am J Respir Crit Care Med 2020; 200:1093-1101. [PMID: 31189067 DOI: 10.1164/rccm.201903-0495tr] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lethal lung developmental disorders are a rare but important group of pediatric diffuse lung diseases presenting with neonatal respiratory failure. On the basis of histopathological appearance at lung biopsy or autopsy, they have been termed: alveolar capillary dysplasia with misalignment of the pulmonary veins, acinar dysplasia, congenital alveolar dysplasia, and other unspecified primary pulmonary hypoplasias. However, the histopathological continuum in these lethal developmental disorders has made accurate diagnosis challenging, which has implications for recurrence risk. Over the past decade, genetic studies in infants with alveolar capillary dysplasia with misalignment of the pulmonary veins have revealed the causative role of the dosage-sensitive FOXF1 gene and its noncoding regulatory variants in the distant lung-specific enhancer at chromosome 16q24.1. In contrast, the molecular bases of acinar dysplasia and congenital alveolar dysplasia have remained poorly understood. Most recently, disruption of the TBX4-FGF10-FGFR2 epithelial-mesenchymal signaling pathway has been reported in patients with these lethal pulmonary dysplasias. Application of next-generation sequencing techniques, including exome sequencing and whole-genome sequencing, has demonstrated their complex compound inheritance. These data indicate that noncoding regulatory elements play a critical role in lung development in humans. We propose that for more precise lethal lung developmental disorder diagnosis, a diagnostic pathway including whole-genome sequencing should be implemented.
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Affiliation(s)
- Marie Vincent
- Service de Genetique Medicale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Université de Nantes, L'institut du Thorax, Nantes, France
| | - Justyna A Karolak
- Department of Molecular and Human Genetics and.,Department of Genetics and Pharmaceutical Microbiology, Poznan University of Medical Sciences, Poznan, Poland
| | - Gail Deutsch
- Department of Pathology, Seattle Children's Hospital, Seattle, Washington
| | - Tomasz Gambin
- Department of Molecular and Human Genetics and.,Department of Medical Genetics, Institute of Mother and Child, Warsaw, Poland; and.,Institute of Computer Science, Warsaw University of Technology, Warsaw, Poland
| | - Edwina Popek
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - Bertrand Isidor
- Service de Genetique Medicale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Université de Nantes, L'institut du Thorax, Nantes, France
| | | | - Cedric Le Caignec
- Service de Genetique Medicale, Centre Hospitalier Universitaire de Nantes, Nantes, France
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Yin Y, Ornitz DM. FGF9 and FGF10 activate distinct signaling pathways to direct lung epithelial specification and branching. Sci Signal 2020; 13:eaay4353. [PMID: 32127497 PMCID: PMC7271816 DOI: 10.1126/scisignal.aay4353] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Fibroblast growth factors (FGFs) 9 and 10 are essential during the pseudoglandular stage of lung development. Mesothelium-produced FGF9 is principally responsible for mesenchymal growth, whereas epithelium-produced FGF9 and mesenchyme-produced FGF10 guide lung epithelial development, and loss of either of these ligands affects epithelial branching. Because FGF9 and FGF10 activate distinct FGF receptors (FGFRs), we hypothesized that they would control distinct developmental processes. Here, we found that FGF9 signaled through epithelial FGFR3 to directly promote distal epithelial fate specification and inhibit epithelial differentiation. By contrast, FGF10 signaled through epithelial FGFR2b to promote epithelial proliferation and differentiation. Furthermore, FGF9-FGFR3 signaling functionally opposed FGF10-FGFR2b signaling, and FGFR3 preferentially used downstream phosphoinositide 3-kinase (PI3K) pathways, whereas FGFR2b relied on downstream mitogen-activated protein kinase (MAPK) pathways. These data demonstrate that, within lung epithelial cells, different FGFRs function independently; they bind receptor-specific ligands and direct distinct developmental functions through the activation of distinct downstream signaling pathways.
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Affiliation(s)
- Yongjun Yin
- Department of Developmental Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - David M Ornitz
- Department of Developmental Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
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40
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Ran Q, Zhou Q, Oda K, Yasue A, Abe M, Ye X, Li Y, Sasaoka T, Sakimura K, Ajioka Y, Saijo Y. Generation of Thyroid Tissues From Embryonic Stem Cells via Blastocyst Complementation In Vivo. Front Endocrinol (Lausanne) 2020; 11:609697. [PMID: 33381086 PMCID: PMC7767966 DOI: 10.3389/fendo.2020.609697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/10/2020] [Indexed: 01/29/2023] Open
Abstract
The generation of mature, functional, thyroid follicular cells from pluripotent stem cells would potentially provide a therapeutic benefit for patients with hypothyroidism, but in vitro differentiation remains difficult. We earlier reported the in vivo generation of lung organs via blastocyst complementation in fibroblast growth factor 10 (Fgf10), compound, heterozygous mutant (Fgf10 Ex1mut/Ex3mut) mice. Fgf10 also plays an essential role in thyroid development and branching morphogenesis, but any role thereof in thyroid organogenesis remains unclear. Here, we report that the thyroids of Fgf10 Ex1mut/Ex3mut mice exhibit severe hypoplasia, and we generate thyroid tissues from mouse embryonic stem cells (ESCs) in Fgf10 Ex1mut/Ex3mut mice via blastocyst complementation. The tissues were morphologically normal and physiologically functional. The thyroid follicular cells of Fgf10 Ex1mut/Ex3mut chimeric mice were derived largely from GFP-positive mouse ESCs although the recipient cells were mixed. Thyroid generation in vivo via blastocyst complementation will aid functional thyroid regeneration.
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Affiliation(s)
- Qingsong Ran
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Qiliang Zhou
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- *Correspondence: Qiliang Zhou,
| | - Kanako Oda
- Department of Comparative and Experimental Medicine, Brain Research Institute, Niigata University, Niigata, Japan
| | - Akihiro Yasue
- Department of Orthodontics and Dentofacial Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Manabu Abe
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, Japan
| | - Xulu Ye
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yingchun Li
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Toshikuni Sasaoka
- Department of Comparative and Experimental Medicine, Brain Research Institute, Niigata University, Niigata, Japan
| | - Kenji Sakimura
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, Japan
| | - Yoichi Ajioka
- Division of Molecular and Diagnostic Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yasuo Saijo
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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41
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Goodwin K, Mao S, Guyomar T, Miller E, Radisky DC, Košmrlj A, Nelson CM. Smooth muscle differentiation shapes domain branches during mouse lung development. Development 2019; 146:dev.181172. [PMID: 31645357 DOI: 10.1242/dev.181172] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 10/21/2019] [Indexed: 01/01/2023]
Abstract
During branching morphogenesis, a simple cluster of cells proliferates and branches to generate an arborized network that facilitates fluid flow. The overall architecture of the mouse lung is established by domain branching, wherein new branches form laterally off the side of an existing branch. The airway epithelium develops concomitantly with a layer of smooth muscle that is derived from the embryonic mesenchyme. Here, we examined the role of smooth muscle differentiation in shaping emerging domain branches. We found that the position and morphology of domain branches are highly stereotyped, as is the pattern of smooth muscle that differentiates around the base of each branch. Perturbing the pattern of smooth muscle differentiation genetically or pharmacologically causes abnormal domain branching. Loss of smooth muscle results in ectopic branching and decreases branch stereotypy. Increased smooth muscle suppresses branch initiation and extension. Computational modeling revealed that epithelial proliferation is insufficient to generate domain branches and that smooth muscle wrapping is required to shape the epithelium into a branch. Our work sheds light on the physical mechanisms of branching morphogenesis in the mouse lung.
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Affiliation(s)
- Katharine Goodwin
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA
| | - Sheng Mao
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Tristan Guyomar
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA.,Département de Physique, Ecole Normale Supérieure de Lyon, F-69342 Lyon, France
| | - Erin Miller
- Department of Cancer Biology, Mayo Clinic Cancer Center, Jacksonville, FL 32224, USA
| | - Derek C Radisky
- Department of Cancer Biology, Mayo Clinic Cancer Center, Jacksonville, FL 32224, USA
| | - Andrej Košmrlj
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Celeste M Nelson
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA .,Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA
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42
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Sivakumar A, Frank DB. Paradigms that define lung epithelial progenitor cell fate in development and regeneration. CURRENT STEM CELL REPORTS 2019; 5:133-144. [PMID: 32587809 DOI: 10.1007/s40778-019-00166-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Purpose of Review Throughout the lifespan, lung injury impedes the primary critical function essential for life-respiration. To repair quickly and efficiently is critical and is orchestrated by a diverse repertoire of progenitor cells and their niche. This review incorporates knowledge gained from early studies in lung epithelial morphogenesis and cell fate and explores its relevance to more recent findings of lung progenitor and stem cells in development and regeneration. Recent Findings Cell fate in the lung is organized into an early specification phase and progressive differentiation phase in lung development. The advent of single cell analysis combined with lineage analysis and projections is uncovering new functional cell types in the lung providing a topographical atlas for progenitor cell lineage commitment during development, homeostasis, and regeneration. Summary Lineage commitment of lung progenitor cells is spatiotemporally regulated during development. Single cell sequencing technologies have significantly advanced our understanding of the similarities and differences between developmental and regenerative cell fate trajectories. Subsequent unraveling of the molecular mechanisms underlying these cell fate decisions will be essential to manipulating progenitor cells for regeneration.
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Affiliation(s)
- Aravind Sivakumar
- Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Penn-CHOP Lung Biology Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - David B Frank
- Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Penn-CHOP Lung Biology Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA
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43
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Liu L, Lu J, Li X, Wu A, Wu Q, Zhao M, Tang N, Song H. The LIS1/NDE1 Complex Is Essential for FGF Signaling by Regulating FGF Receptor Intracellular Trafficking. Cell Rep 2019; 22:3277-3291. [PMID: 29562183 DOI: 10.1016/j.celrep.2018.02.077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/23/2018] [Accepted: 02/21/2018] [Indexed: 11/27/2022] Open
Abstract
Intracellular transport of membranous organelles and protein complexes to various destinations is fundamental to signaling transduction and cellular function. The cytoplasmic dynein motor and its regulatory proteins LIS1 and NDE1 are required for transporting a variety of cellular cargos along the microtubule network. In this study, we show that deletion of Lis1 in developing lung endoderm and limb mesenchymal cells causes agenesis of the lungs and limbs. In both mutants, there is increased cell death and decreased fibroblast growth factor (FGF) signaling activity. Mechanistically, LIS1 and its interacting protein NDE1/NDEL1 are associated with FGF receptor-containing vesicles and regulate FGF receptor intracellular trafficking and degradation. Notably, FGF signaling promotes NDE1 tyrosine phosphorylation, which leads to dissociation of LIS1/NDE1 complex. Thus, our studies identify the LIS1/NDE1 complex as an important FGF signaling regulator and provide insights into the bidirectional regulation of cell signaling and transport machinery for endocytosis.
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Affiliation(s)
- Liansheng Liu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Jinqiu Lu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Xiaoling Li
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Ailing Wu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Qingzhe Wu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Mujun Zhao
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Nan Tang
- National Institute of Biological Sciences, Beijing 102206, China
| | - Hai Song
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China.
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44
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Liberti DC, Zepp JA, Bartoni CA, Liberti KH, Zhou S, Lu M, Morley MP, Morrisey EE. Dnmt1 is required for proximal-distal patterning of the lung endoderm and for restraining alveolar type 2 cell fate. Dev Biol 2019; 454:108-117. [PMID: 31242446 DOI: 10.1016/j.ydbio.2019.06.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 12/28/2022]
Abstract
Lung endoderm development occurs through a series of finely coordinated transcriptional processes that are regulated by epigenetic mechanisms. However, the role of DNA methylation in regulating lung endoderm development remains poorly understood. We demonstrate that DNA methyltransferase 1 (Dnmt1) is required for early branching morphogenesis of the lungs and for restraining epithelial fate specification. Loss of Dnmt1 leads to an early branching defect, a loss of epithelial polarity and proximal endodermal cell differentiation, and an expansion of the distal endoderm compartment. Dnmt1 deficiency also disrupts epithelial-mesenchymal crosstalk and leads to precocious distal endodermal cell differentiation with premature expression of alveolar type 2 cell restricted genes. These data reveal an important requirement for Dnmt1 mediated DNA methylation in early lung development to promote proper branching morphogenesis, maintain proximal endodermal cell fate, and suppress premature activation of the distal epithelial fate.
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Affiliation(s)
- Derek C Liberti
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jarod A Zepp
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Christina A Bartoni
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Kyle H Liberti
- Middleware Engineering, Red Hat, Westford, MA, 01886, USA
| | - Su Zhou
- Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Minmin Lu
- Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Michael P Morley
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Edward E Morrisey
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn Center for Pulmonary Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Penn-CHOP Lung Biology Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Cellular crosstalk in the development and regeneration of the respiratory system. Nat Rev Mol Cell Biol 2019; 20:551-566. [PMID: 31217577 DOI: 10.1038/s41580-019-0141-3] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2019] [Indexed: 12/14/2022]
Abstract
The respiratory system, including the peripheral lungs, large airways and trachea, is one of the most recently evolved adaptations to terrestrial life. To support the exchange of respiratory gases, the respiratory system is interconnected with the cardiovascular system, and this interconnective nature requires a complex interplay between a myriad of cell types. Until recently, this complexity has hampered our understanding of how the respiratory system develops and responds to postnatal injury to maintain homeostasis. The advent of new single-cell sequencing technologies, developments in cellular and tissue imaging and advances in cell lineage tracing have begun to fill this gap. The view that emerges from these studies is that cellular and functional heterogeneity of the respiratory system is even greater than expected and also highly adaptive. In this Review, we explore the cellular crosstalk that coordinates the development and regeneration of the respiratory system. We discuss both the classic cell and developmental biology studies and recent single-cell analysis to provide an integrated understanding of the cellular niches that control how the respiratory system develops, interacts with the external environment and responds to injury.
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Karolak JA, Vincent M, Deutsch G, Gambin T, Cogné B, Pichon O, Vetrini F, Mefford HC, Dines JN, Golden-Grant K, Dipple K, Freed AS, Leppig KA, Dishop M, Mowat D, Bennetts B, Gifford AJ, Weber MA, Lee AF, Boerkoel CF, Bartell TM, Ward-Melver C, Besnard T, Petit F, Bache I, Tümer Z, Denis-Musquer M, Joubert M, Martinovic J, Bénéteau C, Molin A, Carles D, André G, Bieth E, Chassaing N, Devisme L, Chalabreysse L, Pasquier L, Secq V, Don M, Orsaria M, Missirian C, Mortreux J, Sanlaville D, Pons L, Küry S, Bézieau S, Liet JM, Joram N, Bihouée T, Scott DA, Brown CW, Scaglia F, Tsai ACH, Grange DK, Phillips JA, Pfotenhauer JP, Jhangiani SN, Gonzaga-Jauregui CG, Chung WK, Schauer GM, Lipson MH, Mercer CL, van Haeringen A, Liu Q, Popek E, Coban Akdemir ZH, Lupski JR, Szafranski P, Isidor B, Le Caignec C, Stankiewicz P. Complex Compound Inheritance of Lethal Lung Developmental Disorders Due to Disruption of the TBX-FGF Pathway. Am J Hum Genet 2019; 104:213-228. [PMID: 30639323 DOI: 10.1016/j.ajhg.2018.12.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/13/2018] [Indexed: 12/24/2022] Open
Abstract
Primary defects in lung branching morphogenesis, resulting in neonatal lethal pulmonary hypoplasias, are incompletely understood. To elucidate the pathogenetics of human lung development, we studied a unique collection of samples obtained from deceased individuals with clinically and histopathologically diagnosed interstitial neonatal lung disorders: acinar dysplasia (n = 14), congenital alveolar dysplasia (n = 2), and other lethal lung hypoplasias (n = 10). We identified rare heterozygous copy-number variant deletions or single-nucleotide variants (SNVs) involving TBX4 (n = 8 and n = 2, respectively) or FGF10 (n = 2 and n = 2, respectively) in 16/26 (61%) individuals. In addition to TBX4, the overlapping ∼2 Mb recurrent and nonrecurrent deletions at 17q23.1q23.2 identified in seven individuals with lung hypoplasia also remove a lung-specific enhancer region. Individuals with coding variants involving either TBX4 or FGF10 also harbored at least one non-coding SNV in the predicted lung-specific enhancer region, which was absent in 13 control individuals with the overlapping deletions but without any structural lung anomalies. The occurrence of rare coding variants involving TBX4 or FGF10 with the putative hypomorphic non-coding SNVs implies a complex compound inheritance of these pulmonary hypoplasias. Moreover, they support the importance of TBX4-FGF10-FGFR2 epithelial-mesenchymal signaling in human lung organogenesis and help to explain the histopathological continuum observed in these rare lethal developmental disorders of the lung.
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MESH Headings
- DNA Copy Number Variations/genetics
- Female
- Fibroblast Growth Factor 10/genetics
- Fibroblast Growth Factor 10/metabolism
- Gene Expression Regulation
- Gestational Age
- Humans
- Infant, Newborn
- Infant, Newborn, Diseases/genetics
- Infant, Newborn, Diseases/metabolism
- Infant, Newborn, Diseases/mortality
- Infant, Newborn, Diseases/pathology
- Lung/embryology
- Lung/growth & development
- Lung Diseases/genetics
- Lung Diseases/metabolism
- Lung Diseases/mortality
- Lung Diseases/pathology
- Male
- Maternal Inheritance
- Organogenesis
- Paternal Inheritance
- Pedigree
- Polymorphism, Single Nucleotide/genetics
- Receptor, Fibroblast Growth Factor, Type 2/metabolism
- Signal Transduction/genetics
- T-Box Domain Proteins/genetics
- T-Box Domain Proteins/metabolism
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Affiliation(s)
- Justyna A Karolak
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Genetics and Pharmaceutical Microbiology, Poznan University of Medical Sciences, 60-781 Poznan, Poland
| | - Marie Vincent
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | - Gail Deutsch
- Department of Pathology, Seattle Children's Hospital, Seattle, WA 98105, USA
| | - Tomasz Gambin
- Department of Medical Genetics, Institute of Mother and Child, 01-211 Warsaw, Poland; Institute of Computer Science, Warsaw University of Technology, 00-665 Warsaw, Poland
| | - Benjamin Cogné
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | - Olivier Pichon
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France
| | | | - Heather C Mefford
- Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA 98195, USA
| | - Jennifer N Dines
- Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA 98195, USA; Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, WA 98195, USA
| | - Katie Golden-Grant
- Division of Genetic Medicine, Seattle Children's Hospital, Seattle, WA 98105, USA
| | - Katrina Dipple
- Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA 98195, USA; Division of Genetic Medicine, Seattle Children's Hospital, Seattle, WA 98105, USA
| | - Amanda S Freed
- Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA 98195, USA; Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, WA 98195, USA
| | - Kathleen A Leppig
- Genetic Services Kaiser Permanente of Washington, Seattle, WA 98112, USA
| | - Megan Dishop
- Pathology and Laboratory Medicine, Phoenix Children's Hospital, Phoenix, AZ 85016, USA
| | - David Mowat
- Centre for Clinical Genetics, Sydney Children's Hospital, Randwick Sydney, NSW 2031 Australia; School of Women's and Children's Health, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Bruce Bennetts
- Discipline of Child & Adolescent Health, Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia; Molecular Genetics Department, Western Sydney Genetics Program, The Children's Hospital at Westmead, Sydney, NSW 2145, Australia; Discipline of Genetic Medicine, Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia
| | - Andrew J Gifford
- School of Women's and Children's Health, The University of New South Wales, Sydney, NSW 2052, Australia; Department of Anatomical Pathology, Prince of Wales Hospital, Randwick, NSW 2031, Australia
| | - Martin A Weber
- Department of Anatomical Pathology, Prince of Wales Hospital, Randwick, NSW 2031, Australia; School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Anna F Lee
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada
| | - Cornelius F Boerkoel
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - Tina M Bartell
- Department of Genetics, Kaiser Permanente Sacramento Medical Center, Sacramento, CA 95815, USA
| | | | - Thomas Besnard
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | - Florence Petit
- Service de Génétique Clinique, CHU Lille, 59000 Lille, France
| | - Iben Bache
- Department of Cellular and Molecular Medicine, University of Copenhagen, 2200 N Copenhagen, Denmark; Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, 2100 Ø Copenhagen, Denmark
| | - Zeynep Tümer
- Kennedy Center, Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, 2600 Glostrup, Copenhagen, Denmark; Deparment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 N, Copenhagen, Denmark
| | | | | | - Jelena Martinovic
- Unit of Fetal Pathology, AP-HP, Antoine Beclere Hospital, 75000 Paris, France
| | - Claire Bénéteau
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | - Arnaud Molin
- Service de Génétique Médicale, CHU Caen, 14000 Caen, France
| | - Dominique Carles
- Service d'anatomo-pathologie, CHU Bordeaux, 33000 Bordeaux, France
| | - Gwenaelle André
- Service d'anatomo-pathologie, CHU Bordeaux, 33000 Bordeaux, France
| | - Eric Bieth
- Service de génétique médicale, CHU Toulouse, France and UDEAR, UMR 1056 Inserm - Université de Toulouse, 31000 Toulouse, France
| | - Nicolas Chassaing
- Service de génétique médicale, CHU Toulouse, France and UDEAR, UMR 1056 Inserm - Université de Toulouse, 31000 Toulouse, France
| | | | | | | | - Véronique Secq
- Aix Marseille Univ, APHM, Hôpital Nord, Service d'anatomo-pathologie, 13000 Marseille, France
| | - Massimiliano Don
- Sant'Antonio General Hospital, Pediatric Care Unit, San Daniele del Friuli, 33100 Udine, Italy
| | - Maria Orsaria
- Department of Medical and Biological Sciences, Pathology Unit, University of Udine, Udine, Italy
| | - Chantal Missirian
- Aix Marseille Univ, APHM, INSERM, MMG, Marseille, Timone Hospital, 13000 Marseille, France
| | - Jérémie Mortreux
- Aix Marseille Univ, APHM, INSERM, MMG, Marseille, Timone Hospital, 13000 Marseille, France
| | - Damien Sanlaville
- Hospices Civils de Lyon, GHE, Genetics department, and Lyon University, 69000 Lyon, France
| | - Linda Pons
- Hospices Civils de Lyon, GHE, Genetics department, and Lyon University, 69000 Lyon, France
| | - Sébastien Küry
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | - Stéphane Bézieau
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | - Jean-Michel Liet
- Service de réanimation pédiatrique, CHU Nantes, 44000 Nantes, France
| | - Nicolas Joram
- Service de réanimation pédiatrique, CHU Nantes, 44000 Nantes, France
| | | | - Daryl A Scott
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Chester W Brown
- Department of Pediatrics, Genetics Division, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Fernando Scaglia
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Joint BCM-CUHK Center of Medical Genetics, Prince of Wales Hospital, ShaTin, New Territories, Hong Kong SAR
| | - Anne Chun-Hui Tsai
- Department of Pediatrics, The Children's Hospital, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Dorothy K Grange
- Department of Pediatrics, Division of Genetics and Genomic Medicine, Washington University School of Medicine, St. Louis Children's Hospital, St. Louis, MO 63110, USA
| | - John A Phillips
- Department of Pediatrics, Division of Medical Genetics and Genomic Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Jean P Pfotenhauer
- Department of Pediatrics, Division of Medical Genetics and Genomic Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Shalini N Jhangiani
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Wendy K Chung
- Departments of Pediatrics and Medicine, Columbia University, New York, NY 10032, USA
| | - Galen M Schauer
- Department of Pathology, Kaiser Permanente Oakland Medical Center, Oakland, CA 94611, USA
| | - Mark H Lipson
- Department of Genetics, Kaiser Permanente Sacramento Medical Center, Sacramento, CA 95815, USA
| | - Catherine L Mercer
- Wessex Clinical Genetics Service, University Hospital Southampton NHS Foundation Trust, Princess Anne Hospital, Southampton SO16 5YA, UK
| | - Arie van Haeringen
- Department of Clinical Genetics, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Qian Liu
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Edwina Popek
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zeynep H Coban Akdemir
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - James R Lupski
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Przemyslaw Szafranski
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bertrand Isidor
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France; Inserm, CNRS, Univ Nantes, l'institut du thorax, 44000 Nantes, France
| | | | - Paweł Stankiewicz
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics, Houston, TX 77021, USA; Institute of Mother and Child, 01-211 Warsaw, Poland.
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Jones MR, Dilai S, Lingampally A, Chao CM, Danopoulos S, Carraro G, Mukhametshina R, Wilhelm J, Baumgart-Vogt E, Al Alam D, Chen C, Minoo P, Zhang JS, Bellusci S. A Comprehensive Analysis of Fibroblast Growth Factor Receptor 2b Signaling on Epithelial Tip Progenitor Cells During Early Mouse Lung Branching Morphogenesis. Front Genet 2019; 9:746. [PMID: 30728831 PMCID: PMC6351499 DOI: 10.3389/fgene.2018.00746] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 12/27/2018] [Indexed: 01/10/2023] Open
Abstract
This study demonstrates that FGF10/FGFR2b signaling on distal epithelial progenitor cells, via ß-catenin/EP300, controls, through a comprehensive set of developmental genes, morphogenesis, and differentiation. Fibroblast growth factor (FGF) 10 signaling through FGF receptor 2b (FGFR2b) is mandatory during early lung development as the deletion of either the ligand or the receptor leads to lung agenesis. However, this drastic phenotype previously hampered characterization of the primary biological activities, immediate downstream targets and mechanisms of action. Through the use of a dominant negative transgenic mouse model (Rosa26rtTA; tet(o)sFgfr2b), we conditionally inhibited FGF10 signaling in vivo in E12.5 embryonic lungs via doxycycline IP injection to pregnant females, and in vitro by culturing control and experimental lungs with doxycycline. The impact on branching morphogenesis 9 h after doxycycline administration was analyzed by morphometry, fluorescence and electron microscopy. Gene arrays at 6 and 9 h following doxycycline administration were carried out. The relationship between FGF10 and ß-catenin signaling was also analyzed through in vitro experiments using IQ1, a pharmacological inhibitor of ß-catenin/EP300 transcriptional activity. Loss of FGF10 signaling did not impact proliferation or survival, but affected both adherens junctions (up-regulation of E-cadherin), and basement membrane organization (increased laminin). Gene arrays identified multiple direct targets of FGF10, including main transcription factors. Immunofluorescence showed a down-regulation of the distal epithelial marker SOX9 and mis-expression distally of the proximal marker SOX2. Staining for the transcriptionally-active form of ß-catenin showed a reduction in experimental vs. control lungs. In vitro experiments using IQ1 phenocopied the impacts of blocking FGF10. This study demonstrates that FGF10/FGFR2b signaling on distal epithelial progenitor cells via ß-catenin/EP300 controls, through a comprehensive set of developmental genes, cell adhesion, and differentiation.
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Affiliation(s)
- Matthew R Jones
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Salma Dilai
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Arun Lingampally
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Cho-Ming Chao
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Soula Danopoulos
- Developmental Biology and Regenerative Medicine Program, Saban Research Institute of Children's Hospital Los Angeles and University of Southern California, Los Angeles, CA, United States
| | - Gianni Carraro
- Department of Medicine, Cedars-Sinai Medical Center, Lung and Regenerative Medicine Institutes, Los Angeles, CA, United States
| | - Regina Mukhametshina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Jochen Wilhelm
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Eveline Baumgart-Vogt
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Denise Al Alam
- Developmental Biology and Regenerative Medicine Program, Saban Research Institute of Children's Hospital Los Angeles and University of Southern California, Los Angeles, CA, United States
| | - Chengshui Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Parviz Minoo
- Division of Newborn Medicine, Department of Pediatrics, Children's Hospital Los Angeles, University of Southern California, Los Angeles, CA, United States
| | - Jin San Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Life Sciences, Wenzhou University, Zhejiang, China.,International Collaborative Research Center on Growth Factors, Wenzhou Medical University, Zhejiang, China
| | - Saverio Bellusci
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany.,Developmental Biology and Regenerative Medicine Program, Saban Research Institute of Children's Hospital Los Angeles and University of Southern California, Los Angeles, CA, United States.,Institute of Life Sciences, Wenzhou University, Zhejiang, China.,International Collaborative Research Center on Growth Factors, Wenzhou Medical University, Zhejiang, China
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48
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Volckaert T, Yuan T, Yuan J, Boateng E, Hopkins S, Zhang JS, Thannickal VJ, Fässler R, De Langhe SP. Hippo signaling promotes lung epithelial lineage commitment by curbing Fgf10 and β-catenin signaling. Development 2019; 146:146/2/dev166454. [PMID: 30651296 DOI: 10.1242/dev.166454] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/07/2018] [Indexed: 12/25/2022]
Abstract
Organ growth and tissue homeostasis rely on the proliferation and differentiation of progenitor cell populations. In the developing lung, localized Fgf10 expression maintains distal Sox9-expressing epithelial progenitors and promotes basal cell differentiation in the cartilaginous airways. Mesenchymal Fgf10 expression is induced by Wnt signaling but inhibited by Shh signaling, and epithelial Fgf10 signaling activates β-catenin signaling. The Hippo pathway is a well-conserved signaling cascade that regulates organ size and stem/progenitor cell behavior. Here, we show that Hippo signaling promotes lineage commitment of lung epithelial progenitors by curbing Fgf10 and β-catenin signaling. Our findings show that both inactivation of the Hippo pathway (nuclear Yap) or ablation of Yap result in increased β-catenin and Fgf10 signaling, suggesting a cytoplasmic role for Yap in epithelial lineage commitment. We further demonstrate redundant and non-redundant functions for the two nuclear effectors of the Hippo pathway, Yap and Taz, during lung development.
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Affiliation(s)
- Thomas Volckaert
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
| | - Tingting Yuan
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
| | - Jie Yuan
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
| | - Eistine Boateng
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
| | - Seantel Hopkins
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
| | - Jin-San Zhang
- School of Pharmaceutical Sciences and the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.,Division of Oncology Research and Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, MN 55905, USA
| | - Victor J Thannickal
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
| | - Reinhard Fässler
- Department of Molecular Medicine, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany
| | - Stijn P De Langhe
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, AL 35294, USA
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49
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Image-based modeling of kidney branching morphogenesis reveals GDNF-RET based Turing-type mechanism and pattern-modulating WNT11 feedback. Nat Commun 2019; 10:239. [PMID: 30651543 PMCID: PMC6484223 DOI: 10.1038/s41467-018-08212-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 12/22/2018] [Indexed: 11/08/2022] Open
Abstract
Branching patterns and regulatory networks differ between branched organs. It has remained unclear whether a common regulatory mechanism exists and how organ-specific patterns can emerge. Of all previously proposed signalling-based mechanisms, only a ligand-receptor-based Turing mechanism based on FGF10 and SHH quantitatively recapitulates the lung branching patterns. We now show that a GDNF-dependent ligand-receptor-based Turing mechanism quantitatively recapitulates branching of cultured wildtype and mutant ureteric buds, and achieves similar branching patterns when directing domain outgrowth in silico. We further predict and confirm experimentally that the kidney-specific positive feedback between WNT11 and GDNF permits the dense packing of ureteric tips. We conclude that the ligand-receptor based Turing mechanism presents a common regulatory mechanism for lungs and kidneys, despite the differences in the molecular implementation. Given its flexibility and robustness, we expect that the ligand-receptor-based Turing mechanism constitutes a likely general mechanism to guide branching morphogenesis and other symmetry breaks during organogenesis. Many organs develop through branching morphogenesis, but whether the underlying mechanisms are shared is unknown. Here, the authors show that a ligand-receptor based Turing mechanisms, similar to that observed in lung development, likely underlies branching morphogenesis of the kidney.
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50
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Danopoulos S, Thornton ME, Grubbs BH, Frey MR, Warburton D, Bellusci S, Al Alam D. Discordant roles for FGF ligands in lung branching morphogenesis between human and mouse. J Pathol 2018; 247:254-265. [PMID: 30357827 DOI: 10.1002/path.5188] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/26/2018] [Accepted: 10/18/2018] [Indexed: 01/08/2023]
Abstract
Fibroblast growth factor (FGF) signaling plays an important role in lung organogenesis. Over recent decades, FGF signaling in lung development has been extensively studied in animal models. However, little is known about the expression, localization, and functional roles of FGF ligands during human fetal lung development. Therefore, we aimed to determine the expression and function of several FGF ligands and receptors in human lung development. Using in situ hybridization (ISH) and RNA sequencing, we assessed their expression and distribution in native human fetal lung. Human fetal lung explants were treated with recombinant FGF7, FGF9, or FGF10 in air-liquid interface culture. Explants were analyzed grossly to observe differences in branching pattern as well as at the cellular and molecular level. ISH demonstrated that FGF7 is expressed in both the epithelium and mesenchyme; FGF9 is mainly localized in the distal epithelium, whereas FGF10 demonstrated diffuse expression throughout the parenchyma, with some expression in the smooth muscle cells (SMCs). FGFR2 expression was high in both proximal and distal epithelial cells as well as the SMCs. FGFR3 was expressed mostly in the epithelial cells, with lower expression in the mesenchyme, while FGFR4 was highly expressed throughout the mesenchyme and in the distal epithelium. Using recombinant FGFs, we demonstrated that FGF7 and FGF9 had similar effects on human fetal lung as on mouse fetal lung; however, FGF10 caused the human explants to expand and form cysts as opposed to inducing epithelial branching as seen in the mouse. In conjunction with decreased branching, treatment with recombinant FGF7, FGF9, and FGF10 also resulted in decreased double-positive SOX2/SOX9 progenitor cells, which are exclusively present in the distal epithelial tips in early human fetal lung. Although FGF ligand localization may be somewhat comparable between developing mouse and human lungs, their functional roles may differ substantially. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Soula Danopoulos
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Matthew E Thornton
- Department of Obstetrics and Gynecology, Maternal Fetal Medicine Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Brendan H Grubbs
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Department of Obstetrics and Gynecology, Maternal Fetal Medicine Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mark R Frey
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - David Warburton
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Saverio Bellusci
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UGMLC), Justus-Liebig-University Giessen, German Center for Lung Research (DZL), Giessen, Germany
| | - Denise Al Alam
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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