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Stokes G, Li Z, Talaba N, Genthe W, Brix MB, Pham B, Wienhold MD, Sandok G, Hernan R, Wynn J, Tang H, Tabima DM, Rodgers A, Hacker TA, Chesler NC, Zhang P, Murad R, Yuan JXJ, Shen Y, Chung WK, McCulley DJ. Rescuing lung development through embryonic inhibition of histone acetylation. Sci Transl Med 2024; 16:eadc8930. [PMID: 38295182 DOI: 10.1126/scitranslmed.adc8930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 01/10/2024] [Indexed: 02/02/2024]
Abstract
A major barrier to the impact of genomic diagnosis in patients with congenital malformations is the lack of understanding regarding how sequence variants contribute to disease pathogenesis and whether this information could be used to generate patient-specific therapies. Congenital diaphragmatic hernia (CDH) is among the most common and severe of all structural malformations; however, its underlying mechanisms are unclear. We identified loss-of-function sequence variants in the epigenomic regulator gene SIN3A in two patients with complex CDH. Tissue-specific deletion of Sin3a in mice resulted in defects in diaphragm development, lung hypoplasia, and pulmonary hypertension, the cardinal features of CDH and major causes of CDH-associated mortality. Loss of SIN3A in the lung mesenchyme resulted in reduced cellular differentiation, impaired cell proliferation, and increased DNA damage. Treatment of embryonic Sin3a mutant mice with anacardic acid, an inhibitor of histone acetyltransferase, reduced DNA damage, increased cell proliferation and differentiation, improved lung and pulmonary vascular development, and reduced pulmonary hypertension. These findings demonstrate that restoring the balance of histone acetylation can improve lung development in the Sin3a mouse model of CDH.
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Affiliation(s)
- Giangela Stokes
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | - Zhuowei Li
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | - Nicole Talaba
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | - William Genthe
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Maria B Brix
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Betty Pham
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | | | - Gracia Sandok
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Rebecca Hernan
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Julia Wynn
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Haiyang Tang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China
| | - Diana M Tabima
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Allison Rodgers
- Department of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Timothy A Hacker
- Department of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Naomi C Chesler
- Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center and Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
| | - Pan Zhang
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Rabi Murad
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Jason X-J Yuan
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Yufeng Shen
- Department of Systems Biology, Department of Biomedical Informatics, and JP Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Wendy K Chung
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - David J McCulley
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
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Mitchell A, Yu C, Zhao X, Pearmain L, Shah R, Hanley KP, Felton T, Wang T. Rapid Generation of Pulmonary Organoids from Induced Pluripotent Stem Cells by Co-Culturing Endodermal and Mesodermal Progenitors for Pulmonary Disease Modelling. Biomedicines 2023; 11:1476. [PMID: 37239147 PMCID: PMC10216357 DOI: 10.3390/biomedicines11051476] [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: 04/13/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Differentiation of induced pluripotent stem cells to a range of target cell types is ubiquitous in monolayer culture. To further improve the phenotype of the cells produced, 3D organoid culture is becoming increasingly prevalent. Mature organoids typically require the involvement of cells from multiple germ layers. The aim of this study was to produce pulmonary organoids from defined endodermal and mesodermal progenitors. Endodermal and mesodermal progenitors were differentiated from iPSCs and then combined in 3D Matrigel hydrogels and differentiated for a further 14 days to produce pulmonary organoids. The organoids expressed a range of pulmonary cell markers such as SPA, SPB, SPC, AQP5 and T1α. Furthermore, the organoids expressed ACE2 capable of binding SARS-CoV-2 spike proteins, demonstrating the physiological relevance of the organoids produced. This study presented a rapid production of pulmonary organoids using a multi-germ-layer approach that could be used for studying respiratory-related human conditions.
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Affiliation(s)
- Adam Mitchell
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK; (A.M.); (C.Y.); (X.Z.)
| | - Chaowen Yu
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK; (A.M.); (C.Y.); (X.Z.)
- Children’s Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Xiangjun Zhao
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK; (A.M.); (C.Y.); (X.Z.)
| | - Laurence Pearmain
- Division of Diabetes, Endocrinology & Gastroenterology, Wellcome Trust Centre for Cell-Matrix Research, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK; (L.P.); (K.P.H.)
| | - Rajesh Shah
- Manchester University Hospital NHS Foundation Trust, Wythenshawe Hospital, Southmoor Road, Manchester M23 9LT, UK;
| | - Karen Piper Hanley
- Division of Diabetes, Endocrinology & Gastroenterology, Wellcome Trust Centre for Cell-Matrix Research, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK; (L.P.); (K.P.H.)
| | - Timothy Felton
- Division of Infection, Immunity and Respiratory Medicine, The Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
| | - Tao Wang
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK; (A.M.); (C.Y.); (X.Z.)
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3
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Wagner R, Amonkar GM, Wang W, Shui JE, Bankoti K, Tse WH, High FA, Zalieckas JM, Buchmiller TL, Zani A, Keijzer R, Donahoe PK, Lerou PH, Ai X. A Tracheal Aspirate-derived Airway Basal Cell Model Reveals a Proinflammatory Epithelial Defect in Congenital Diaphragmatic Hernia. Am J Respir Crit Care Med 2023; 207:1214-1226. [PMID: 36731066 PMCID: PMC10161756 DOI: 10.1164/rccm.202205-0953oc] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 02/02/2023] [Indexed: 02/04/2023] Open
Abstract
Rationale: Congenital diaphragmatic hernia (CDH) is characterized by incomplete closure of the diaphragm and lung hypoplasia. The pathophysiology of lung defects in CDH is poorly understood. Objectives: To establish a translational model of human airway epithelium in CDH for pathogenic investigation and therapeutic testing. Methods: We developed a robust methodology of epithelial progenitor derivation from tracheal aspirates of newborns. Basal stem cells (BSCs) from patients with CDH and preterm and term non-CDH control subjects were derived and analyzed by bulk RNA sequencing, assay for transposase accessible chromatin with sequencing, and air-liquid interface differentiation. Lung sections from fetal human CDH samples and the nitrofen rat model of CDH were subjected to histological assessment of epithelial defects. Therapeutics to restore epithelial differentiation were evaluated in human epithelial cell culture and the nitrofen rat model of CDH. Measurements and Main Results: Transcriptomic and epigenetic profiling of CDH and control BSCs reveals a proinflammatory signature that is manifested by hyperactive nuclear factor kappa B and independent of severity and hernia size. In addition, CDH BSCs exhibit defective epithelial differentiation in vitro that recapitulates epithelial phenotypes found in fetal human CDH lung samples and fetal tracheas of the nitrofen rat model of CDH. Furthermore, blockade of nuclear factor kappa B hyperactivity normalizes epithelial differentiation phenotypes of human CDH BSCs in vitro and in nitrofen rat tracheas in vivo. Conclusions: Our findings have identified an underlying proinflammatory signature and BSC differentiation defects as a potential therapeutic target for airway epithelial defects in CDH.
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Affiliation(s)
- Richard Wagner
- Division of Newborn Medicine and
- Pediatric Surgical Research Laboratories, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Gaurang M. Amonkar
- Division of Newborn Medicine and
- Pediatric Surgical Research Laboratories, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Wei Wang
- Division of Newborn Medicine and
| | | | | | - Wai Hei Tse
- Departments of Surgery, Pediatrics & Child Health, Physiology & Pathophysiology, University of Manitoba and Children’s Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Frances A. High
- Division of Medical Genetics, Department of Pediatrics, and
- Pediatric Surgical Research Laboratories, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Surgery and
| | - Jill M. Zalieckas
- Division of Pediatric Surgery, Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Terry L. Buchmiller
- Division of Pediatric Surgery, Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Augusto Zani
- Department of Pediatric Surgery, University of Toronto, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Richard Keijzer
- Departments of Surgery, Pediatrics & Child Health, Physiology & Pathophysiology, University of Manitoba and Children’s Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Patricia K. Donahoe
- Pediatric Surgical Research Laboratories, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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4
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Gilbert RM, Gleghorn JP. Connecting clinical, environmental, and genetic factors point to an essential role for vitamin A signaling in the pathogenesis of congenital diaphragmatic hernia. Am J Physiol Lung Cell Mol Physiol 2023; 324:L456-L467. [PMID: 36749917 PMCID: PMC10042603 DOI: 10.1152/ajplung.00349.2022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/09/2023] Open
Abstract
Congenital diaphragmatic hernia (CDH) is a developmental disorder that results in incomplete diaphragm formation, pulmonary hypoplasia, and pulmonary hypertension. Although a variety of genes have been linked to its etiology, CDH is not a monogenetic disease, and the cause of the condition is still unclear in the vast majority of clinical cases. By comparing human clinical data and experimental rodent data from the literature, we present clear support demonstrating the importance of vitamin A (vitA) during the early window of pregnancy when the diaphragm and lung are forming. Alteration of vitA signaling via dietary and genetic perturbations can create diaphragmatic defects. Unfortunately, vitA deficiency is chronic among people of child-bearing age, and this early window of diaphragm development occurs before many might be aware of pregnancy. Furthermore, there is an increased demand for vitA during this critical period, which exacerbates the likelihood of deficiency. It would be beneficial for the field to further investigate the connections between maternal vitA and CDH incidence, with the goal of determining vitA status as a CDH risk factor. Regular clinical monitoring of vitA levels in child-bearing years is a tractable method by which CDH outcomes could be prevented or improved.
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Affiliation(s)
- Rachel M Gilbert
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, United States
| | - Jason P Gleghorn
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, United States
- Department of Biological Sciences, University of Delaware, Newark, Delaware, United States
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5
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Erb A, Zissler UM, Oelsner M, Chaker AM, Schmidt-Weber CB, Jakwerth CA. Genome-Wide Gene Expression Analysis Reveals Unique Genes Signatures of Epithelial Reorganization in Primary Airway Epithelium Induced by Type-I, -II and -III Interferons. BIOSENSORS 2022; 12:929. [PMID: 36354438 PMCID: PMC9688329 DOI: 10.3390/bios12110929] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Biosensors such as toll-like receptors (TLR) induce the expression of interferons (IFNs) after viral infection that are critical to the first step in cell-intrinsic host defense mechanisms. Their differential influence on epithelial integrity genes, however, remains elusive. A genome-wide gene expression biosensor chip for gene expression sensing was used to examine the effects of type-I, -II, and -III IFN stimulation on the epithelial expression profiles of primary organotypic 3D air-liquid interface airway cultures. All types of IFNs induced similar interferon-stimulated genes (ISGs): OAS1, OAS2, and IFIT2. However, they differentially induced transcription factors, epithelial modulators, and pro-inflammatory genes. Type-I IFN-induced genes were associated with cell-cell adhesion and tight junctions, while type-III IFNs promoted genes important for transepithelial transport. In contrast, type-II IFN stimulated proliferation-triggering genes associated and enhanced pro-inflammatory mediator secretion. In conclusion, with our microarray system, we provide evidence that the three IFN types exceed their antiviral ISG-response by inducing distinct remodeling processes, thereby likely strengthening the epithelial airway barrier by enhancing cross-cell-integrity (I), transepithelial transport (III) and finally reconstruction through proliferation (II).
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Affiliation(s)
- Anna Erb
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Member of the Helmholtz I&I Initiative, 85746 Munich, Germany
| | - Ulrich M. Zissler
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Member of the Helmholtz I&I Initiative, 85746 Munich, Germany
| | - Madlen Oelsner
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Member of the Helmholtz I&I Initiative, 85746 Munich, Germany
| | - Adam M. Chaker
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Member of the Helmholtz I&I Initiative, 85746 Munich, Germany
- Department of Otorhinolaryngology and Head and Neck Surgery, Medical School, Technical University of Munich, 81675 Munich, Germany
| | - Carsten B. Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Member of the Helmholtz I&I Initiative, 85746 Munich, Germany
| | - Constanze A. Jakwerth
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Member of the Helmholtz I&I Initiative, 85746 Munich, Germany
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6
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Zhang C, Zhao H, Song X, Wang J, Zhao S, Deng H, He L, Zhou X, Yin X, Zhang K, Zhang Y, Wu Z, Chen Q, Du J, Yu D, Zhang S, Deng W. Transcription factor GATA4 drives RNA polymerase III-directed transcription and transformed cell proliferation through a filamin A/GATA4/SP1 pathway. J Biol Chem 2022; 298:101581. [PMID: 35038452 PMCID: PMC8857480 DOI: 10.1016/j.jbc.2022.101581] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/31/2021] [Accepted: 01/03/2022] [Indexed: 11/27/2022] Open
Abstract
RNA polymerase III (pol III) products play fundamental roles in a variety of cellular processes, including protein synthesis and cancer cell proliferation. In addition, dysregulation of pol III-directed transcription closely correlates with tumorigenesis. It is therefore of interest to identify novel pathways or factors governing pol III-directed transcription. Here, we show that transcription factor (TF) GATA binding protein 4 (GATA4) expression in SaOS2 cells was stimulated by the silencing of filamin A (FLNA), a repressor of pol III-directed transcription, suggesting that GATA4 is potentially associated with the regulation of pol III-directed transcription. Indeed, we show that GATA4 expression positively correlates with pol III-mediated transcription and tumor cell proliferation. Mechanistically, we found that GATA4 depletion inhibits the occupancies of the pol III transcription machinery factors at the loci of pol III target genes by reducing expression of both TFIIIB subunit TFIIB-related factor 1 and TFIIIC subunit general transcription factor 3C subunit 2 (GTF3C2). GATA4 has been shown to activate specificity factor 1 (Sp1) gene transcription by binding to the Sp1 gene promoter, and Sp1 has been confirmed to activate pol III gene transcription by directly binding to both Brf1 and Gtf3c2 gene promoters. Thus, the findings from this study suggest that GATA4 links FLNA and Sp1 signaling to form an FLNA/GATA4/Sp1 axis to modulate pol III-directed transcription and transformed cell proliferation. Taken together, these results provide novel insights into the regulatory mechanism of pol III-directed transcription.
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Affiliation(s)
- Cheng Zhang
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Houliang Zhao
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Xiaoye Song
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Juan Wang
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, China
| | - Shasha Zhao
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Huan Deng
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Liu He
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Xiangyu Zhou
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Xiaomei Yin
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Kewei Zhang
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Yue Zhang
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Zhongyu Wu
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Qiyue Chen
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Jiannan Du
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Deen Yu
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Shihua Zhang
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China.
| | - Wensheng Deng
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China.
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7
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Schilders KAA, Edel GG, Eenjes E, Oresta B, Birkhoff J, Boerema-de Munck A, Buscop-van Kempen M, Liakopoulos P, Kolovos P, Demmers JAA, Poot R, Wijnen RMH, Tibboel D, Rottier RJ. Identification of SOX2 Interacting Proteins in the Developing Mouse Lung With Potential Implications for Congenital Diaphragmatic Hernia. Front Pediatr 2022; 10:881287. [PMID: 35615634 PMCID: PMC9124971 DOI: 10.3389/fped.2022.881287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/04/2022] [Indexed: 12/02/2022] Open
Abstract
Congenital diaphragmatic hernia is a structural birth defect of the diaphragm, with lung hypoplasia and persistent pulmonary hypertension. Aside from vascular defects, the lungs show a disturbed balance of differentiated airway epithelial cells. The Sry related HMG box protein SOX2 is an important transcription factor for proper differentiation of the lung epithelium. The transcriptional activity of SOX2 depends on interaction with other proteins and the identification of SOX2-associating factors may reveal important complexes involved in the disturbed differentiation in CDH. To identify SOX2-associating proteins, we purified SOX2 complexes from embryonic mouse lungs at 18.5 days of gestation. Mass spectrometry analysis of SOX2-associated proteins identified several potential candidates, among which were the Chromodomain Helicase DNA binding protein 4 (CHD4), Cut-Like Homeobox1 (CUX1), and the Forkhead box proteins FOXP2 and FOXP4. We analyzed the expression patterns of FOXP2, FOXP4, CHD4, and CUX1 in lung during development and showed co-localization with SOX2. Co-immunoprecipitations validated the interactions of these four transcription factors with SOX2, and large-scale chromatin immunoprecipitation (ChIP) data indicated that SOX2 and CHD4 bound to unique sites in the genome, but also co-occupied identical regions, suggesting that these complexes could be involved in co-regulation of genes involved in the respiratory system.
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Affiliation(s)
- Kim A A Schilders
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Gabriëla G Edel
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Evelien Eenjes
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Bianca Oresta
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Judith Birkhoff
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Anne Boerema-de Munck
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Marjon Buscop-van Kempen
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Panagiotis Liakopoulos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Petros Kolovos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Raymond Poot
- Department of Cell Biology, Erasmus MC, Rotterdam, Netherlands
| | - Rene M H Wijnen
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Dick Tibboel
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Robbert J Rottier
- Department of Pediatric Surgery, Erasmus Medical Center (MC)-Sophia Children's Hospital, Rotterdam, Netherlands.,Department of Cell Biology, Erasmus MC, Rotterdam, Netherlands
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8
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Friedmacher F, Rolle U, Puri P. Genetically Modified Mouse Models of Congenital Diaphragmatic Hernia: Opportunities and Limitations for Studying Altered Lung Development. Front Pediatr 2022; 10:867307. [PMID: 35633948 PMCID: PMC9136148 DOI: 10.3389/fped.2022.867307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/18/2022] [Indexed: 11/21/2022] Open
Abstract
Congenital diaphragmatic hernia (CDH) is a relatively common and life-threatening birth defect, characterized by an abnormal opening in the primordial diaphragm that interferes with normal lung development. As a result, CDH is accompanied by immature and hypoplastic lungs, being the leading cause of morbidity and mortality in patients with this condition. In recent decades, various animal models have contributed novel insights into the pathogenic mechanisms underlying CDH and associated pulmonary hypoplasia. In particular, the generation of genetically modified mouse models, which show both diaphragm and lung abnormalities, has resulted in the discovery of multiple genes and signaling pathways involved in the pathogenesis of CDH. This article aims to offer an up-to-date overview on CDH-implicated transcription factors, molecules regulating cell migration and signal transduction as well as components contributing to the formation of extracellular matrix, whilst also discussing the significance of these genetic models for studying altered lung development with regard to the human situation.
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Affiliation(s)
- Florian Friedmacher
- Department of Pediatric Surgery, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt, Germany
| | - Udo Rolle
- Department of Pediatric Surgery, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt, Germany
| | - Prem Puri
- Beacon Hospital, University College Dublin, Dublin, Ireland.,Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland
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9
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Cannata G, Caporilli C, Grassi F, Perrone S, Esposito S. Management of Congenital Diaphragmatic Hernia (CDH): Role of Molecular Genetics. Int J Mol Sci 2021; 22:ijms22126353. [PMID: 34198563 PMCID: PMC8231903 DOI: 10.3390/ijms22126353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/04/2021] [Accepted: 06/11/2021] [Indexed: 12/11/2022] Open
Abstract
Congenital diaphragmatic hernia (CDH) is a relatively common major life-threatening birth defect that results in significant mortality and morbidity depending primarily on lung hypoplasia, persistent pulmonary hypertension, and cardiac dysfunction. Despite its clinical relevance, CDH multifactorial etiology is still not completely understood. We reviewed current knowledge on normal diaphragm development and summarized genetic mutations and related pathways as well as cellular mechanisms involved in CDH. Our literature analysis showed that the discovery of harmful de novo variants in the fetus could constitute an important tool for the medical team during pregnancy, counselling, and childbirth. A better insight into the mechanisms regulating diaphragm development and genetic causes leading to CDH appeared essential to the development of new therapeutic strategies and evidence-based genetic counselling to parents. Integrated sequencing, development, and bioinformatics strategies could direct future functional studies on CDH; could be applied to cohorts and consortia for CDH and other birth defects; and could pave the way for potential therapies by providing molecular targets for drug discovery.
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Affiliation(s)
- Giulia Cannata
- Pediatric Clinic, Pietro Barilla Children’s Hospital, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.C.); (C.C.); (F.G.)
| | - Chiara Caporilli
- Pediatric Clinic, Pietro Barilla Children’s Hospital, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.C.); (C.C.); (F.G.)
| | - Federica Grassi
- Pediatric Clinic, Pietro Barilla Children’s Hospital, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.C.); (C.C.); (F.G.)
| | - Serafina Perrone
- Neonatology Unit, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy;
| | - Susanna Esposito
- Pediatric Clinic, Pietro Barilla Children’s Hospital, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.C.); (C.C.); (F.G.)
- Correspondence: ; Tel.: +39-0521-7047
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10
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Gong C, Fan Y, Zhou X, Lai S, Wang L, Liu J. Comprehensive Analysis of Expression and Prognostic Value of GATAs in Lung Cancer. J Cancer 2021; 12:3862-3876. [PMID: 34093794 PMCID: PMC8176258 DOI: 10.7150/jca.52623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 04/23/2021] [Indexed: 02/07/2023] Open
Abstract
GATAs are a family of transcription factors that play sophisticated and extensive roles in cell fate transitions and tissue morphogenesis during embryonic development. Emerging evidence indicate that GATAs are involved in tumorigenesis of lung cancer (LC). However, the distinct roles, diverse expression patterns and prognostic values of six GATA family members in LC have yet to be elucidated. In the present study, the diverse expression patterns, prognostic values, genetic mutations, protein-protein interaction(PPI) networks of GATAs, Gene Ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway in LC patients were analyzed using a serious of databases, including ONCOMINE database, Cancer Cell Line Encyclopedia database, the Human Protein Atlas, the Gene Expression Profiling Interactive Analysis database, the Kaplan-Meier plotter, cBioPortal, String database and database Database for Annotation, Visualization, and Integrated Discovery. The mRNA expression levels of GATA1/2/4/5/6 were downregulated, while GATA3 showed abnormal expressions of up-regulation and down-regulation in patients with LC. Aberrant GATAs mRNA expression was connected with prognosis. Furthermore, genetic alterations mainly appeared in GATA4. Gene Ontology enrichment and network analysis demonstrated that GATAs and their 50 interactors were primarily associated with positive regulation of transcription from RNA polymerase II promoter, transcription factor complex, transcription factor binding Jak-STAT signaling pathway. This comprehensive bioinformatic analysis demonstrated that GATA1/2/3/4/6 may be new prognosis factors, and GATA2/5/6 may be potential targets for personalized therapy for patients with LC, but further studies are requisite to analyze the mechanism of their carcinogenicity and investigate novel drug treatment. Finally, these findings would conduce to a better understanding of the unique roles of GATAs in LC.
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Affiliation(s)
- Chengwu Gong
- Department of Cardiothoracic Surgery, Second Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Yun Fan
- Department of Neurology and National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Xueliang Zhou
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Songqing Lai
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Lijun Wang
- Department of Cardiothoracic Surgery, Second Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Jichun Liu
- Department of Cardiothoracic Surgery, Second Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China
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11
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Oh JH, Tannenbaum A, Deasy JO. Identification of biological correlates associated with respiratory failure in COVID-19. BMC Med Genomics 2020; 13:186. [PMID: 33308225 PMCID: PMC7729705 DOI: 10.1186/s12920-020-00839-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/29/2020] [Indexed: 12/11/2022] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) is a global public health concern. Recently, a genome-wide association study (GWAS) was performed with participants recruited from Italy and Spain by an international consortium group.
Methods Summary GWAS statistics for 1610 patients with COVID-19 respiratory failure and 2205 controls were downloaded. In the current study, we analyzed the summary statistics with the information of loci and p-values for 8,582,968 single-nucleotide polymorphisms (SNPs), using gene ontology analysis to determine the top biological processes implicated in respiratory failure in COVID-19 patients. Results We considered the top 708 SNPs, using a p-value cutoff of 5 × 10− 5, which were mapped to the nearest genes, leading to 144 unique genes. The list of genes was input into a curated database to conduct gene ontology and protein-protein interaction (PPI) analyses. The top ranked biological processes were wound healing, epithelial structure maintenance, muscle system processes, and cardiac-relevant biological processes with a false discovery rate < 0.05. In the PPI analysis, the largest connected network consisted of 8 genes. Through a literature search, 7 out of the 8 gene products were found to be implicated in both pulmonary and cardiac diseases. Conclusion Gene ontology and PPI analyses identified cardio-pulmonary processes that may partially explain the risk of respiratory failure in COVID-19 patients.
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Affiliation(s)
- Jung Hun Oh
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Allen Tannenbaum
- Departments of Computer Science and Applied Mathematics & Statistics, Stony Brook University, Stony Brook, NY, USA
| | - Joseph O Deasy
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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12
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Fgf10-CRISPR mosaic mutants demonstrate the gene dose-related loss of the accessory lobe and decrease in the number of alveolar type 2 epithelial cells in mouse lung. PLoS One 2020; 15:e0240333. [PMID: 33057360 PMCID: PMC7561199 DOI: 10.1371/journal.pone.0240333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/23/2020] [Indexed: 11/19/2022] Open
Abstract
CRISPR/Cas9-mediated gene editing often generates founder generation (F0) mice that exhibit somatic mosaicism in the targeted gene(s). It has been known that Fibroblast growth factor 10 (Fgf10)-null mice exhibit limbless and lungless phenotypes, while intermediate limb phenotypes (variable defective limbs) are observed in the Fgf10-CRISPR F0 mice. However, how the lung phenotype in the Fgf10-mosaic mutants is related to the limb phenotype and genotype has not been investigated. In this study, we examined variable lung phenotypes in the Fgf10-targeted F0 mice to determine if the lung phenotype was correlated with percentage of functional Fgf10 genotypes. Firstly, according to a previous report, Fgf10-CRISPR F0 embryos on embryonic day 16.5 (E16.5) were classified into three types: type I, no limb; type II, limb defect; and type III, normal limbs. Cartilage and bone staining showed that limb truncations were observed in the girdle, (type I), stylopodial, or zeugopodial region (type II). Deep sequencing of the Fgf10-mutant genomes revealed that the mean proportion of codons that encode putative functional FGF10 was 8.3 ± 6.2% in type I, 25.3 ± 2.7% in type II, and 54.3 ± 9.5% in type III (mean ± standard error of the mean) mutants at E16.5. Histological studies showed that almost all lung lobes were absent in type I embryos. The accessory lung lobe was often absent in type II embryos with other lobes dysplastic. All lung lobes formed in type III embryos. The number of terminal tubules was significantly lower in type I and II embryos, but unchanged in type III embryos. To identify alveolar type 2 epithelial (AECII) cells, known to be reduced in the Fgf10-heterozygous mutant, immunostaining using anti-surfactant protein C (SPC) antibody was performed: In the E18.5 lungs, the number of AECII was correlated to the percentage of functional Fgf10 genotypes. These data suggest the Fgf10 gene dose-related loss of the accessory lobe and decrease in the number of alveolar type 2 epithelial cells in mouse lung. Since dysfunction of AECII cells has been implicated in the pathogenesis of parenchymal lung diseases, the Fgf10-CRISPR F0 mouse would present an ideal experimental system to explore it.
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13
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Nakamura H, Doi T, Puri P, Friedmacher F. Transgenic animal models of congenital diaphragmatic hernia: a comprehensive overview of candidate genes and signaling pathways. Pediatr Surg Int 2020; 36:991-997. [PMID: 32591848 PMCID: PMC7385019 DOI: 10.1007/s00383-020-04705-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/17/2020] [Indexed: 01/10/2023]
Abstract
Congenital diaphragmatic hernia (CDH) is a relatively common and life-threatening birth defect, characterized by incomplete formation of the diaphragm. Because CDH herniation occurs at the same time as preacinar airway branching, normal lung development becomes severely disrupted, resulting almost invariably in pulmonary hypoplasia. Despite various research efforts over the past decades, the pathogenesis of CDH and associated lung hypoplasia remains poorly understood. With the advent of molecular techniques, transgenic animal models of CDH have generated a large number of candidate genes, thus providing a novel basis for future research and treatment. This review article offers a comprehensive overview of genes and signaling pathways implicated in CDH etiology, whilst also discussing strengths and limitations of transgenic animal models in relation to the human condition.
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Affiliation(s)
- Hiroki Nakamura
- National Children’s Research Centre, Our Lady’s Children’s Hospital, Dublin, Ireland ,Department of Pediatric Surgery, Kansai Medical University, Osaka, Japan
| | - Takashi Doi
- National Children’s Research Centre, Our Lady’s Children’s Hospital, Dublin, Ireland ,Department of Pediatric Surgery, Kansai Medical University, Osaka, Japan
| | - Prem Puri
- National Children’s Research Centre, Our Lady’s Children’s Hospital, Dublin, Ireland ,Beacon Hospital, University College Dublin, Dublin, Ireland
| | - Florian Friedmacher
- National Children’s Research Centre, Our Lady’s Children’s Hospital, Dublin, Ireland ,Department of Pediatric Surgery, University Hospital Frankfurt, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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14
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Funk E, Lencer E, McCune A. Dorsoventral inversion of the air-filled organ (lungs, gas bladder) in vertebrates: RNAsequencing of laser capture microdissected embryonic tissue. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART B, MOLECULAR AND DEVELOPMENTAL EVOLUTION 2020; 334:325-338. [PMID: 32864827 PMCID: PMC8094346 DOI: 10.1002/jez.b.22998] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/04/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022]
Abstract
How modification of gene expression generates novel traits is key to understanding the evolutionary process. We investigated the genetic basis for the origin of the piscine gas bladder from lungs of ancestral bony vertebrates. Distinguishing these homologous organs is the direction of budding from the foregut during development; lungs bud ventrally and the gas bladder buds dorsally.
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Affiliation(s)
- Emily Funk
- Cornell University, Department of Ecology and Evolutionary Biology, 215 Tower Rd, Ithaca, NY 14853
- University of California Davis, Genomic Variation Lab, Animal Science Department, 2235 Meyer Hall, Davis, CA 95616
| | - Ezra Lencer
- University of Colorado Denver - Anschutz Medical Campus, Department of Craniofacial Biology, 12081 East 17 Ave, RC 1 South, Campus Box 8120, Aurora, CO 80045
| | - Amy McCune
- Cornell University, Department of Ecology and Evolutionary Biology, 215 Tower Rd, Ithaca, NY 14853
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15
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He LX, Tang ZH, Huang QS, Li WH. DNA Methylation: A Potential Biomarker of Chronic Obstructive Pulmonary Disease. Front Cell Dev Biol 2020; 8:585. [PMID: 32733890 PMCID: PMC7358425 DOI: 10.3389/fcell.2020.00585] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a serious public health concern worldwide. By 2040, 4.41 million people are estimated to expire annually due to COPD. However, till date, it has remained difficult to alter the activity or progress of the disease through treatment. In order to address this issue, the best way would be to find biomarkers and new therapeutic targets for COPD. DNA methylation (DNAm) may be a potential biomarker for disease prevention, diagnosis, and prognosis, and its reversibility further makes it a potential drug design target in COPD. In this review, we aimed to explore the role of DNAm as biomarkers and disease mediators in different tissue samples from patients with COPD.
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Affiliation(s)
- Lin-Xi He
- School of Basic Medicine Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhao-Hui Tang
- School of Basic Medicine Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qing-Song Huang
- Department of Respiratory, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei-Hong Li
- School of Basic Medicine Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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16
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Romano O, Miccio A. GATA factor transcriptional activity: Insights from genome-wide binding profiles. IUBMB Life 2019; 72:10-26. [PMID: 31574210 DOI: 10.1002/iub.2169] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 09/05/2019] [Indexed: 01/07/2023]
Abstract
The members of the GATA family of transcription factors have homologous zinc fingers and bind to similar sequence motifs. Recent advances in genome-wide technologies and the integration of bioinformatics data have led to a better understanding of how GATA factors regulate gene expression; GATA-factor-induced transcriptional and epigenetic changes have now been analyzed at unprecedented levels of detail. Here, we review the results of genome-wide studies of GATA factor occupancy in human and murine cell lines and primary cells (as determined by chromatin immunoprecipitation sequencing), and then discuss the molecular mechanisms underlying the mediation of transcriptional and epigenetic regulation by GATA factors.
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Affiliation(s)
- Oriana Romano
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Annarita Miccio
- Laboratory of chromatin and gene regulation during development, Imagine Institute, INSERM UMR, Paris, France.,Paris Descartes, Sorbonne Paris Cité University, Imagine Institute, Paris, France
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17
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Gao L, Hu Y, Tian Y, Fan Z, Wang K, Li H, Zhou Q, Zeng G, Hu X, Yu L, Zhou S, Tong X, Huang H, Chen H, Liu Q, Liu W, Zhang G, Zeng M, Zhou G, He Q, Ji H, Chen L. Lung cancer deficient in the tumor suppressor GATA4 is sensitive to TGFBR1 inhibition. Nat Commun 2019; 10:1665. [PMID: 30971692 PMCID: PMC6458308 DOI: 10.1038/s41467-019-09295-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 02/05/2019] [Indexed: 12/20/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Tumor suppressor genes remain to be systemically identified for lung cancer. Through the genome-wide screening of tumor-suppressive transcription factors, we demonstrate here that GATA4 functions as an essential tumor suppressor in lung cancer in vitro and in vivo. Ectopic GATA4 expression results in lung cancer cell senescence. Mechanistically, GATA4 upregulates multiple miRNAs targeting TGFB2 mRNA and causes ensuing WNT7B downregulation and eventually triggers cell senescence. Decreased GATA4 level in clinical specimens negatively correlates with WNT7B or TGF-β2 level and is significantly associated with poor prognosis. TGFBR1 inhibitors show synergy with existing therapeutics in treating GATA4-deficient lung cancers in genetically engineered mouse model as well as patient-derived xenograft (PDX) mouse models. Collectively, our work demonstrates that GATA4 functions as a tumor suppressor in lung cancer and targeting the TGF-β signaling provides a potential way for the treatment of GATA4-deficient lung cancer. The tumor suppressor GATA4 is frequently epigenetically silenced in lung cancer. In this study, Gao et al. demonstrate that GATA4 regulates the expression of TGFBR2 and that TGFRB1 inhibitors can synergise with chemotherapeutics to inhibit the growth of GATA4-deficient tumors in mice.
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Affiliation(s)
- Lei Gao
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China.,College of Life Sciences, Beijing Normal University, 100875, Beijing, China
| | - Yong Hu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Yahui Tian
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Zhenzhen Fan
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China.,College of Biological Sciences, China Agricultural University, 100094, Beijing, China
| | - Kun Wang
- Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, 100190, Beijing, China
| | - Hongdan Li
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Qian Zhou
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Guandi Zeng
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Xin Hu
- The University of Texas Health Science Center at Houston (UTHealth), 2450 Holcombe Blvd., Suite 1, Houston, TX, 77021, USA
| | - Lei Yu
- Beijing Tongren Hospital, Capital Medical University, 100730, Beijing, China
| | - Shiyu Zhou
- State Key Laboratory of Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Xinyuan Tong
- State Key Laboratory of Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hsinyi Huang
- State Key Laboratory of Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,CAS Center for Excellence in Molecular Cell Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China.,Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Haiquan Chen
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, 200032, Shanghai, China
| | - Qingsong Liu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, 230031, Hefei, Anhui, China
| | - Wanting Liu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Gong Zhang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China
| | - Musheng Zeng
- Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Guangbiao Zhou
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Qingyu He
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China.
| | - Hongbin Ji
- State Key Laboratory of Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China. .,CAS Center for Excellence in Molecular Cell Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China. .,Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031, Shanghai, China. .,School of Life Science and Technology, Shanghai Tech University, 200120, Shanghai, China.
| | - Liang Chen
- Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China.
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18
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Simon CS, Zhang L, Wu T, Cai W, Saiz N, Nowotschin S, Cai CL, Hadjantonakis AK. A Gata4 nuclear GFP transcriptional reporter to study endoderm and cardiac development in the mouse. Biol Open 2018; 7:bio.036517. [PMID: 30530745 PMCID: PMC6310872 DOI: 10.1242/bio.036517] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The GATA zinc-finger transcription factor GATA4 is expressed in a variety of tissues during mouse embryonic development and in adult organs. These include the primitive endoderm of the blastocyst, visceral endoderm of the early post-implantation embryo, as well as lateral plate mesoderm, developing heart, liver, lung and gonads. Here, we generate a novel Gata4 targeted allele used to generate both a Gata4H2B-GFP transcriptional reporter and a Gata4FLAG fusion protein to analyse dynamic expression domains. We demonstrate that the Gata4H2B-GFP transcriptional reporter faithfully recapitulates known sites of Gata4 mRNA expression and correlates with endogenous GATA4 protein levels. This reporter labels nuclei of Gata4 expressing cells and is suitable for time-lapse imaging and single cell analyses. As such, this Gata4H2B-GFP allele will be a useful tool for studying Gata4 expression and transcriptional regulation.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Claire S Simon
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Lu Zhang
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Tao Wu
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Weibin Cai
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Nestor Saiz
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sonja Nowotschin
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Chen-Leng Cai
- Department of Developmental and Regenerative Biology, The Mindich Child Health and Development Institute, and The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Anna-Katerina Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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19
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Tremblay M, Sanchez-Ferras O, Bouchard M. GATA transcription factors in development and disease. Development 2018; 145:145/20/dev164384. [DOI: 10.1242/dev.164384] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
ABSTRACT
The GATA family of transcription factors is of crucial importance during embryonic development, playing complex and widespread roles in cell fate decisions and tissue morphogenesis. GATA proteins are essential for the development of tissues derived from all three germ layers, including the skin, brain, gonads, liver, hematopoietic, cardiovascular and urogenital systems. The crucial activity of GATA factors is underscored by the fact that inactivating mutations in most GATA members lead to embryonic lethality in mouse models and are often associated with developmental diseases in humans. In this Primer, we discuss the unique and redundant functions of GATA proteins in tissue morphogenesis, with an emphasis on their regulation of lineage specification and early organogenesis.
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Affiliation(s)
- Mathieu Tremblay
- Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
| | - Oraly Sanchez-Ferras
- Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
| | - Maxime Bouchard
- Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
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20
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Mesothelial to mesenchyme transition as a major developmental and pathological player in trunk organs and their cavities. Commun Biol 2018; 1:170. [PMID: 30345394 PMCID: PMC6191446 DOI: 10.1038/s42003-018-0180-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/28/2018] [Indexed: 12/18/2022] Open
Abstract
The internal organs embedded in the cavities are lined by an epithelial monolayer termed the mesothelium. The mesothelium is increasingly implicated in driving various internal organ pathologies, as many of the normal embryonic developmental pathways acting in mesothelial cells, such as those regulating epithelial-to-mesenchymal transition, also drive disease progression in adult life. Here, we summarize observations from different animal models and organ systems that collectively point toward a central role of epithelial-to-mesenchymal transition in driving tissue fibrosis, acute scarring, and cancer metastasis. Thus, drugs targeting pathways of mesothelium’s transition may have broad therapeutic benefits in patients suffering from these diseases. Tim Koopmans and Yuval Rinkevich review recent findings linking the mesothelium’s embryonic programs that drive epithelial-to-mesenchyme transition with adult pathologies, such as fibrosis, acute scarring, and cancer metastasis. They highlight new avenues for drug development that would target pathways of the mesothelium’s mesenchymal transition.
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21
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McCulley DJ, Wienhold MD, Hines EA, Hacker TA, Rogers A, Pewowaruk RJ, Zewdu R, Chesler NC, Selleri L, Sun X. PBX transcription factors drive pulmonary vascular adaptation to birth. J Clin Invest 2017; 128:655-667. [PMID: 29251627 DOI: 10.1172/jci93395] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 11/07/2017] [Indexed: 01/14/2023] Open
Abstract
A critical event in the adaptation to extrauterine life is relaxation of the pulmonary vasculature at birth, allowing for a rapid increase in pulmonary blood flow that is essential for efficient gas exchange. Failure of this transition leads to pulmonary hypertension (PH), a major cause of newborn mortality associated with preterm birth, infection, hypoxia, and malformations including congenital diaphragmatic hernia (CDH). While individual vasoconstrictor and dilator genes have been identified, the coordination of their expression is not well understood. Here, we found that lung mesenchyme-specific deletion of CDH-implicated genes encoding pre-B cell leukemia transcription factors (Pbx) led to lethal PH in mice shortly after birth. Loss of Pbx genes resulted in the misexpression of both vasoconstrictors and vasodilators in multiple pathways that converge to increase phosphorylation of myosin in vascular smooth muscle (VSM) cells, causing persistent constriction. While targeting endothelin and angiotensin, which are upstream regulators that promote VSM contraction, was not effective, treatment with the Rho-kinase inhibitor Y-27632 reduced vessel constriction and PH in Pbx-mutant mice. These results demonstrate a lung-intrinsic, herniation-independent cause of PH in CDH. More broadly, our findings indicate that neonatal PH can result from perturbation of multiple pathways and suggest that targeting the downstream common effectors may be a more effective treatment for neonatal PH.
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Affiliation(s)
| | | | | | | | | | - Ryan J Pewowaruk
- Department of Biomedical Engineering, University of Wisconsin - Madison, Madison, Wisconsin, USA
| | - Rediet Zewdu
- Department of Cell and Developmental Biology, Weill Medical College of Cornell University, New York, New York, USA
| | - Naomi C Chesler
- Department of Pediatrics.,Department of Biomedical Engineering, University of Wisconsin - Madison, Madison, Wisconsin, USA
| | - Licia Selleri
- Department of Cell and Developmental Biology, Weill Medical College of Cornell University, New York, New York, USA.,Program in Craniofacial Biology, Institute of Human Genetics, Departments of Orofacial Sciences and Anatomy, UCSF, San Francisco, California, USA
| | - Xin Sun
- Laboratory of Genetics.,Department of Pediatrics, UCSD, San Diego, California, USA
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22
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Kardon G, Ackerman KG, McCulley DJ, Shen Y, Wynn J, Shang L, Bogenschutz E, Sun X, Chung WK. Congenital diaphragmatic hernias: from genes to mechanisms to therapies. Dis Model Mech 2017; 10:955-970. [PMID: 28768736 PMCID: PMC5560060 DOI: 10.1242/dmm.028365] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Congenital diaphragmatic hernias (CDHs) and structural anomalies of the diaphragm are a common class of congenital birth defects that are associated with significant morbidity and mortality due to associated pulmonary hypoplasia, pulmonary hypertension and heart failure. In ∼30% of CDH patients, genomic analyses have identified a range of genetic defects, including chromosomal anomalies, copy number variants and sequence variants. The affected genes identified in CDH patients include transcription factors, such as GATA4, ZFPM2, NR2F2 and WT1, and signaling pathway components, including members of the retinoic acid pathway. Mutations in these genes affect diaphragm development and can have pleiotropic effects on pulmonary and cardiac development. New therapies, including fetal endoscopic tracheal occlusion and prenatal transplacental fetal treatments, aim to normalize lung development and pulmonary vascular tone to prevent and treat lung hypoplasia and pulmonary hypertension, respectively. Studies of the association between particular genetic mutations and clinical outcomes should allow us to better understand the origin of this birth defect and to improve our ability to predict and identify patients most likely to benefit from specialized treatment strategies.
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Affiliation(s)
- Gabrielle Kardon
- Department of Human Genetics, University of Utah, Salt Lake City, UT 84112, USA
| | - Kate G Ackerman
- Departments of Pediatrics (Critical Care) and Biomedical Genetics, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - David J McCulley
- Department of Pediatrics, University of Wisconsin, Madison, WI 53792, USA
| | - Yufeng Shen
- Department of Systems Biology, Columbia University Medical Center, New York, NY 10032, USA
| | - Julia Wynn
- Departments of Pediatrics, Columbia University Medical Center, New York, NY 10032, USA
| | - Linshan Shang
- Departments of Pediatrics, Columbia University Medical Center, New York, NY 10032, USA
| | - Eric Bogenschutz
- Department of Human Genetics, University of Utah, Salt Lake City, UT 84112, USA
| | - Xin Sun
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Wendy K Chung
- Department of Human Genetics, University of Utah, Salt Lake City, UT 84112, USA
- Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA
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23
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Fisher JB, Pulakanti K, Rao S, Duncan SA. GATA6 is essential for endoderm formation from human pluripotent stem cells. Biol Open 2017; 6:1084-1095. [PMID: 28606935 PMCID: PMC5550920 DOI: 10.1242/bio.026120] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Protocols have been established that direct differentiation of human pluripotent stem cells into a variety of cell types, including the endoderm and its derivatives. This model of differentiation has been useful for investigating the molecular mechanisms that guide human developmental processes. Using a directed differentiation protocol combined with shRNA depletion we sought to understand the role of GATA6 in regulating the earliest switch from pluripotency to definitive endoderm. We reveal that GATA6 depletion during endoderm formation results in apoptosis of nascent endoderm cells, concomitant with a loss of endoderm gene expression. We show by chromatin immunoprecipitation followed by DNA sequencing that GATA6 directly binds to several genes encoding transcription factors that are necessary for endoderm differentiation. Our data support the view that GATA6 is a central regulator of the formation of human definitive endoderm from pluripotent stem cells by directly controlling endoderm gene expression. Summary: Using the differentiation of huESCs as a model for endoderm formation, we reveal that the transcription factor GATA6 regulates the onset of endoderm gene expression and is required for its viability.
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Affiliation(s)
- J B Fisher
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Blood Center of Wisconsin, Milwaukee, WI 53226, USA
| | - K Pulakanti
- Blood Center of Wisconsin, Milwaukee, WI 53226, USA
| | - S Rao
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Blood Center of Wisconsin, Milwaukee, WI 53226, USA.,Division of Pediatric Hematology, Oncology, and Blood and Marrow Transplant, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - S A Duncan
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA .,Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
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24
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Galazo MJ, Emsley JG, Macklis JD. Corticothalamic Projection Neuron Development beyond Subtype Specification: Fog2 and Intersectional Controls Regulate Intraclass Neuronal Diversity. Neuron 2016; 91:90-106. [PMID: 27321927 DOI: 10.1016/j.neuron.2016.05.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 03/16/2016] [Accepted: 05/16/2016] [Indexed: 01/05/2023]
Abstract
Corticothalamic projection neurons (CThPN) are a diverse set of neurons, critical for function of the neocortex. CThPN development and diversity need to be precisely regulated, but little is known about molecular controls over their differentiation and functional specialization, critically limiting understanding of cortical development and complexity. We report the identification of a set of genes that both define CThPN and likely control their differentiation, diversity, and function. We selected the CThPN-specific transcriptional coregulator Fog2 for functional analysis. We identify that Fog2 controls CThPN molecular differentiation, axonal targeting, and diversity, in part by regulating the expression level of Ctip2 by CThPN, via combinatorial interactions with other molecular controls. Loss of Fog2 specifically disrupts differentiation of subsets of CThPN specialized in motor function, indicating that Fog2 coordinates subtype and functional-area differentiation. These results confirm that we identified key controls over CThPN development and identify Fog2 as a critical control over CThPN diversity.
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Affiliation(s)
- Maria J Galazo
- Department of Stem Cell and Regenerative Biology, Center for Brain Science, and Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Jason G Emsley
- Department of Stem Cell and Regenerative Biology, Center for Brain Science, and Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Jeffrey D Macklis
- Department of Stem Cell and Regenerative Biology, Center for Brain Science, and Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA.
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25
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Abstract
The GATA family of transcription factors consists of six proteins (GATA1-6) which are
involved in a variety of physiological and pathological processes. GATA1/2/3 are required
for differentiation of mesoderm and ectoderm-derived tissues, including the haematopoietic
and central nervous system. GATA4/5/6 are implicated in development and differentiation of
endoderm- and mesoderm-derived tissues such as induction of differentiation of embryonic
stem cells, cardiovascular embryogenesis and guidance of epithelial cell differentiation
in the adult.
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26
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Borok MJ, Papaioannou VE, Sussel L. Unique functions of Gata4 in mouse liver induction and heart development. Dev Biol 2016; 410:213-222. [PMID: 26687508 PMCID: PMC4758879 DOI: 10.1016/j.ydbio.2015.12.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 12/07/2015] [Accepted: 12/09/2015] [Indexed: 01/12/2023]
Abstract
Gata4 and Gata6 are closely related transcription factors that are essential for the development of a number of embryonic tissues. While they have nearly identical DNA-binding domains and similar patterns of expression, Gata4 and Gata6 null embryos have strikingly different embryonic lethal phenotypes. To determine whether the lack of redundancy is due to differences in protein function or Gata4 and Gata6 expression domains, we generated mice that contained the Gata6 cDNA in place of the Gata4 genomic locus. Gata4(Gata6/Gata6) embryos survived through embryonic day (E)12.5 and successfully underwent ventral folding morphogenesis, demonstrating that Gata6 is able to replace Gata4 function in extraembryonic tissues. Surprisingly, Gata6 is unable to replace Gata4 function in the septum transversum mesenchyme or the epicardium, leading to liver agenesis and lethal heart defects in Gata4(Gata6/Gata6) embryos. These studies suggest that Gata4 has evolved distinct functions in the development of these tissues that cannot be performed by Gata6, even when it is provided in the identical expression domain. Our work has important implications for the respective mechanisms of Gata function during development, as well as the functional evolution of these essential transcription factors.
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Affiliation(s)
- Matthew J Borok
- Department of Genetics and Development, Columbia University, New York, NY, USA
| | | | - Lori Sussel
- Department of Genetics and Development, Columbia University, New York, NY, USA.
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27
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Muscle connective tissue controls development of the diaphragm and is a source of congenital diaphragmatic hernias. Nat Genet 2015; 47:496-504. [PMID: 25807280 PMCID: PMC4414795 DOI: 10.1038/ng.3250] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 02/23/2015] [Indexed: 12/14/2022]
Abstract
The diaphragm is an essential mammalian skeletal muscle, and defects in diaphragm development are the cause of congenital diaphragmatic hernias (CDH), a common and often lethal birth defect. The diaphragm is derived from multiple embryonic sources, but how these give rise to the diaphragm is unknown and, despite the identification of many CDH-associated genes, the etiology of CDH is incompletely understood. Using mouse genetics, we show that the pleuroperitoneal folds (PPFs), transient embryonic structures, are the source of the diaphragm’s muscle connective tissue, regulate muscle development, and their striking migration controls diaphragm morphogenesis. Furthermore, Gata4 mosaic mutations in PPF-derived muscle connective tissue fibroblasts result in the development of localized amuscular regions that are biomechanically weaker and more compliant and lead to CDH. Thus the PPFs and muscle connective tissue are critical for diaphragm development and mutations in PPF-derived fibroblasts are a source of CDH.
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28
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Abstract
Congenital diaphragmatic hernia (CDH) is a moderately prevalent birth defect that, despite advances in neonatal care, is still a significant cause of infant death, and surviving patients have significant morbidity. The goal of ongoing research to elucidate the genetic causes of CDH is to develop better treatment and ultimately prevention. CDH is a complex developmental defect that is etiologically heterogeneous. This review summarizes the recurrent genetic causes of CDH including aneuploidies, chromosome copy number variants, and single gene mutations. It also discusses strategies for genetic evaluation and genetic counseling in an era of rapidly evolving technologies in clinical genetic diagnostics.
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Affiliation(s)
| | | | - Wendy K. Chung
- Corresponding author. Address: Division of Molecular Genetics, Department of Pediatrics, Columbia University Medical Center, 1150 St Nicholas Avenue, Room 620, New York, NY 10032, USA. Tel.: +1 212-851-5313; fax: +1 212-851-5306. (W.K. Chung)
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29
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Meek PM, Sood A, Petersen H, Belinsky SA, Tesfaigzi Y. Epigenetic change (GATA-4 gene methylation) is associated with health status in chronic obstructive pulmonary disease. Biol Res Nurs 2014; 17:191-8. [PMID: 24973415 DOI: 10.1177/1099800414538113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Gene methylation is an epigenetic change that involves a heritable modification of chromatin structure that alters gene expression without a change in DNA sequence. It has previously been shown that methylation of the GATA-4 gene promoter region in sputum DNA is associated with low lung function and increased odds of chronic obstructive pulmonary disease (COPD) among smokers. Given these findings, we hypothesized that GATA-4 gene methylation in sputum DNA would be associated with low health status, as measured by the St. George's Respiratory Questionnaire (SGRQ), in subjects with COPD. Self-reported SGRQ, spirometry, and induced sputum samples were obtained from 168 COPD subjects from the Lovelace Smokers Cohort. GATA-4 gene methylation was evaluated in sputum DNA using nested methylation-specific polymerase chain reaction (PCR) assays. Using general linear model with Poisson regression, we found that GATA-4 gene methylation was significantly associated with overall lower SGRQ health status (parameter estimate = .296, p < .001). This finding remained significant even after controlling for age, lung function, and other covariates. In an additional analysis using logistic regression and comparing extreme tertiles of overall SGRQ score, we confirmed that GATA-4 gene methylation was associated with a 3-fold increase in risk of poor health status (OR 2.95 and p = .028). The unexplored links between epigenetic changes and psychosocial factors such as health status are critical gaps in the literature. This study is the first to suggest that airway GATA-4 gene methylation status may independently predict health status in individuals with COPD.
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Affiliation(s)
- Paula M Meek
- College of Nursing, University of Colorado at Denver, Denver, CO, USA
| | - Akshay Sood
- Department of Medicine, University of New Mexico School of Medicine, Albuquerque, NM, USA
| | - Hans Petersen
- Lovelace Respiratory Research Institute, Albuquerque, NM, USA
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30
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Brady PD, Van Houdt J, Callewaert B, Deprest J, Devriendt K, Vermeesch JR. Exome sequencing identifies ZFPM2 as a cause of familial isolated congenital diaphragmatic hernia and possibly cardiovascular malformations. Eur J Med Genet 2014; 57:247-52. [PMID: 24769157 DOI: 10.1016/j.ejmg.2014.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 04/13/2014] [Indexed: 01/02/2023]
Abstract
Using exome sequencing we identify a heterozygous nonsense mutation in ZFPM2 as a cause of familial isolated congenital diaphragmatic hernia in 2 affected siblings. This mutation displays variable phenotypic expression being present in a third sibling with a mild diaphragmatic eventration and a cardiovascular malformation. The same variant is seen in 2 additional family members, both of whom are asymptomatic, thus highlighting that ZFPM2 haploinsufficiency is associated with reduced penetrance. Our finding adds further evidence for ZFPM2 having a role in diaphragm and cardiovascular development.
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Affiliation(s)
- Paul D Brady
- Centre for Human Genetics, KU Leuven, University Hospital Leuven, Belgium
| | - Jeroen Van Houdt
- Centre for Human Genetics, KU Leuven, University Hospital Leuven, Belgium
| | - Bert Callewaert
- Department of Pediatrics and Medical Genetics, Universiteit Gent, Gent, Belgium
| | - Jan Deprest
- Department of Development and Regeneration, Unit Pregnancy, Foetus and Newborn, KU Leuven, Belgium; Department Obstetrics and Gynaecology, University Hospital Leuven, Belgium
| | - Koenraad Devriendt
- Centre for Human Genetics, KU Leuven, University Hospital Leuven, Belgium
| | - Joris R Vermeesch
- Centre for Human Genetics, KU Leuven, University Hospital Leuven, Belgium
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31
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Shu J, Wu C, Wu Y, Li Z, Shao S, Zhao W, Tang X, Yang H, Shen L, Zuo X, Yang W, Shi Y, Chi X, Zhang H, Gao G, Shu Y, Yuan K, He W, Tang C, Zhao Y, Deng H. Induction of pluripotency in mouse somatic cells with lineage specifiers. Cell 2013; 153:963-75. [PMID: 23706735 DOI: 10.1016/j.cell.2013.05.001] [Citation(s) in RCA: 214] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 02/13/2013] [Accepted: 04/15/2013] [Indexed: 11/15/2022]
Abstract
The reprogramming factors that induce pluripotency have been identified primarily from embryonic stem cell (ESC)-enriched, pluripotency-associated factors. Here, we report that, during mouse somatic cell reprogramming, pluripotency can be induced with lineage specifiers that are pluripotency rivals to suppress ESC identity, most of which are not enriched in ESCs. We found that OCT4 and SOX2, the core regulators of pluripotency, can be replaced by lineage specifiers that are involved in mesendodermal (ME) specification and in ectodermal (ECT) specification, respectively. OCT4 and its substitutes attenuated the elevated expression of a group of ECT genes, whereas SOX2 and its substitutes curtailed a group of ME genes during reprogramming. Surprisingly, the two counteracting lineage specifiers can synergistically induce pluripotency in the absence of both OCT4 and SOX2. Our study suggests a "seesaw model" in which a balance that is established using pluripotency factors and/or counteracting lineage specifiers can facilitate reprogramming.
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Affiliation(s)
- Jian Shu
- MOE Key Laboratory of Cell Proliferation and Differentiation, College of Life Sciences, Peking University, Beijing 100871, China
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32
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Rawnsley DR, Xiao J, Lee JS, Liu X, Mericko-Ishizuka P, Kumar V, He J, Basu A, Lu M, Lynn FC, Pack M, Gasa R, Kahn ML. The transcription factor Atonal homolog 8 regulates Gata4 and Friend of Gata-2 during vertebrate development. J Biol Chem 2013; 288:24429-40. [PMID: 23836893 DOI: 10.1074/jbc.m113.463083] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
GATA and Friend of GATA (FOG) form a transcriptional complex that plays a key role in cardiovascular development in both fish and mammals. In the present study we demonstrate that the basic helix-loop-helix transcription factor Atonal homolog 8 (Atoh8) is required for development of the heart in fish but not in mice. Genetic studies reveal that Atoh8 interacts specifically with Gata4 and Fog1 during development of the heart and swim bladder in the fish. Biochemical studies reveal that ATOH8, GATA4, and FOG2 associate in a single complex in vitro. In contrast to fish, ATOH8-deficient mice exhibit normal cardiac development and loss of ATOH8 does not alter cardiac development in Gata4(+/-) mice. This species difference in the role of ATOH8 is explained in part by LacZ and GFP reporter alleles that reveal restriction of Atoh8 expression to atrial but not ventricular myocardium in the mouse. Our findings identify ATOH8 as a novel regulator of GATA-FOG function that is required for cardiac development in the fish but not the mouse. Whether ATOH8 modulates GATA-FOG function at other sites or in more subtle ways in mammals is not yet known.
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Affiliation(s)
- David R Rawnsley
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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33
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Beck TF, Shchelochkov OA, Yu Z, Kim BJ, Hernández-García A, Zaveri HP, Bishop C, Overbeek PA, Stockton DW, Justice MJ, Scott DA. Novel frem1-related mouse phenotypes and evidence of genetic interactions with gata4 and slit3. PLoS One 2013; 8:e58830. [PMID: 23536828 PMCID: PMC3594180 DOI: 10.1371/journal.pone.0058830] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 02/07/2013] [Indexed: 11/27/2022] Open
Abstract
The FRAS1-related extracellular matrix 1 (FREM1) gene encodes an extracellular matrix protein that plays a critical role in the development of multiple organ systems. In humans, recessive mutations in FREM1 cause eye defects, congenital diaphragmatic hernia, renal anomalies and anorectal malformations including anteriorly placed anus. A similar constellation of findings-microphthalmia, cryptophthalmos, congenital diaphragmatic hernia, renal agenesis and rectal prolapse-have been described in FREM1-deficient mice. In this paper, we identify a homozygous Frem1 missense mutation (c.1687A>T, p.Ile563Phe) in an N-ethyl-N-nitrosourea (ENU)-derived mouse strain, crf11, with microphthalmia, cryptophthalmos, renal agenesis and rectal prolapse. This mutation affects a highly conserved residue in FREM1's third CSPG domain. The p.Ile563Phe change is predicted to be deleterious and to cause decreased FREM1 protein stability. The crf11 allele also fails to complement the previously described eyes2 allele of Frem1 (p.Lys826*) providing further evidence that the crf11 phenotype is due to changes affecting Frem1 function. We then use mice bearing the crf11 and eyes2 alleles to identify lung lobulation defects and decreased anogenital distance in males as novel phenotypes associated with FREM1 deficiency in mice. Due to phenotypic overlaps between FREM1-deficient mice and mice that are deficient for the retinoic acid-responsive transcription factor GATA4 and the extracellular matrix protein SLIT3, we also perform experiments to look for in vivo genetic interactions between the genes that encode these proteins. These experiments reveal that Frem1 interacts genetically with Gata4 in the development of lung lobulation defects and with Slit3 in the development of renal agenesis. These results demonstrate that FREM1-deficient mice faithfully recapitulate many of the phenotypes seen in individuals with FREM1 deficiency and that variations in GATA4 and SLIT3 expression modulate some FREM1-related phenotypes in mice.
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Affiliation(s)
- Tyler F. Beck
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Oleg A. Shchelochkov
- Department of Pediatrics, The University of Iowa, Iowa City, Iowa, United States of America
| | - Zhiyin Yu
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Bum Jun Kim
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Andrés Hernández-García
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Hitisha P. Zaveri
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Colin Bishop
- The Wake Forest Institute for Regenerative Medicine, Winston Salem, North Carolina, United States of America
| | - Paul A. Overbeek
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - David W. Stockton
- Departments of Pediatrics and Internal Medicine, Wayne State University, Detroit, Michigan, United States of America
| | - Monica J. Justice
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Daryl A. Scott
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Texas, United States of America
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34
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Hirasawa T, Kuratani S. A new scenario of the evolutionary derivation of the mammalian diaphragm from shoulder muscles. J Anat 2013; 222:504-17. [PMID: 23448284 PMCID: PMC3633340 DOI: 10.1111/joa.12037] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2013] [Indexed: 12/30/2022] Open
Abstract
The evolutionary origin of the diaphragm remains unclear, due to the lack of a comparable structure in other extant taxa. However, recent researches into the developmental mechanism of this structure have yielded new insights into its origin. Here we summarize current understanding regarding the development of the diaphragm, and present a possible scenario for the evolutionary acquisition of this uniquely mammalian structure. Recent developmental analyses indicate that the diaphragm and forelimb muscles are derived from a shared cell population during embryonic development. Therefore, the embryonic positions of forelimb muscle progenitors, which correspond to the position of the brachial plexus, likely played an important role in the evolution of the diaphragm. We surveyed the literature to reexamine the position of the brachial plexus among living amniotes and confirmed that the cervico-thoracic transition in ribs reflects the brachial plexus position. Using this osteological correlate, we concluded that the anterior borders of the brachial plexuses in the stem synapsids were positioned at the level of the fourth spinal nerve, suggesting that the forelimb buds were laid in close proximity of the infrahyoid muscles. The topology of the phrenic and suprascapular nerves of mammals is similar to that of subscapular and supracoracoid nerves, respectively, of the other amniotes, suggesting that the diaphragm evolved from a muscle positioned medial to the pectoral girdle (cf. subscapular muscle). We hypothesize that the diaphragm was acquired in two steps: first, forelimb muscle cells were incorporated into tissues to form a primitive diaphragm in the stem synapsid grade, and second, the diaphragm in cynodonts became entrapped in the region controlled by pulmonary development.
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Affiliation(s)
- Tatsuya Hirasawa
- Laboratory for Evolutionary Morphology, RIKEN Center for Developmental Biology, Kobe, Japan.
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35
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Haroon J, Chamberlain RS. An evidence-based review of the current treatment of congenital diaphragmatic hernia. Clin Pediatr (Phila) 2013; 52:115-24. [PMID: 23378478 DOI: 10.1177/0009922812472249] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Congenital diaphragmatic hernia is a rare but severe condition affecting 1 in 2000 to 3000 newborns with a survival rate of 67%. Although regular antenatal screening allows prenatal diagnosis in many cases, traditionally treatment has been based on postnatal surgical repair. Recent literature has pointed out the survival benefits of initial stabilization and the use of gentle ventilation strategies prior to definitive treatment, shifting the trend from immediate to delayed surgical repair. Advances in fetal intervention have allowed the introduction of fetal endoscopic tracheal occlusion as a method to hasten lung development before birth in order to minimize postnatal morbidity. Despite appropriate treatment, the long-term outcomes of these patients are plagued with numerous complications, associated with the primary pathology and also aggressive therapeutic measures. International centers of excellence have recently come together in an effort to standardize the care of such patients in hopes of maximizing their outcomes.
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Affiliation(s)
- Junaid Haroon
- Saint Barnabas Medical Center, Livingston, NJ 07039, USA
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36
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Chlon TM, Crispino JD. Combinatorial regulation of tissue specification by GATA and FOG factors. Development 2012; 139:3905-16. [PMID: 23048181 DOI: 10.1242/dev.080440] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The development of complex organisms requires the formation of diverse cell types from common stem and progenitor cells. GATA family transcriptional regulators and their dedicated co-factors, termed Friend of GATA (FOG) proteins, control cell fate and differentiation in multiple tissue types from Drosophila to man. FOGs can both facilitate and antagonize GATA factor transcriptional regulation depending on the factor, cell, and even the specific gene target. In this review, we highlight recent studies that have elucidated mechanisms by which FOGs regulate GATA factor function and discuss how these factors use these diverse modes of gene regulation to control cell lineage specification throughout metazoans.
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Affiliation(s)
- Timothy M Chlon
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
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37
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Vähätalo R, Asikainen TM, Karikoski R, Kinnula VL, White CW, Andersson S, Heikinheimo M, Myllärniemi M. Expression of Transcription Factor GATA-6 in Alveolar Epithelial Cells Is Linked to Neonatal Lung Disease. Neonatology 2011; 99:231-40. [PMID: 21071980 PMCID: PMC2992637 DOI: 10.1159/000317827] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Accepted: 06/22/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND Premature birth and respiratory distress syndrome (RDS) are risk factors for disturbed lung development and bronchopulmonary dysplasia (BPD). The molecular mechanisms related to prematurity and BPD remain largely unknown. Epithelial expression of the transcription factor GATA-6 has been implicated in normal and abnormal murine lung development. OBJECTIVES The possible involvement of GATA-6 in the normal development and in RDS and BPD was investigated in the human and baboon lung. METHODS Immunohistochemistry was used to study the expression of GATA-6 and thyroid transcription factor 1 in lung specimens from different age groups of human and baboon fetuses and newborns with lung disease. Furthermore, the regulatory role of TGF-β₁ in GATA-6 expression was investigated in human pulmonary epithelial cell lines using RT-PCR. RESULTS GATA-6 expression increased in the developing human airway epithelium along with advancing gestation, but diminished to negligible at birth. In RDS, GATA-6 expression was enhanced at 5-7 days after birth, and decreased thereafter. In BPD, the expression of GATA-6 in alveolar epithelial cells was low. These results were confirmed and extended using an established baboon model of prematurity. The in vitro experiments revealed that TGF-β₁ induces GATA-6 and thyroid transcription factor 1 expression in lung epithelial cells. CONCLUSIONS Our results suggest that the expression of GATA-6 at the early stages of the preterm lung may be related to impaired postnatal alveolar development.
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Affiliation(s)
- Riika Vähätalo
- Children's Hospital, University of Helsinki, Helsinki, Finland
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Abstract
Congenital diaphragmatic hernia (CDH) is a congenital anomaly consisting of a posterolateral defect in the diaphragm also known as a Bochdalek hernia. It occurs in 1 in 2000 to 3000 newborns and is associated with a variable degree of pulmonary hypoplasia (PH) and persistent pulmonary hypertension (PPH). Despite remarkable advances in neonatal resuscitation and intensive care and the new postnatal treatment strategies, many newborns with CDH continue to have high rates of mortality and morbidity as the result of severe respiratory failure secondary to PH and PPH. The pathogenesis of CDH and associated PH and PPH is poorly understood. Herein, we aim to review diaphragm and pulmonary development and correlate this to the abnormalities found in CDH.
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Affiliation(s)
- Richard Keijzer
- Department of Pediatric Surgery, Erasmusmc-Sophia, Rotterdam, The Netherlands
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Abstract
The mammalian respiratory system--the trachea and the lungs--arises from the anterior foregut through a sequence of morphogenetic events involving reciprocal endodermal-mesodermal interactions. The lung itself consists of two highly branched, tree-like systems--the airways and the vasculature--that develop in a coordinated way from the primary bud stage to the generation of millions of alveolar gas exchange units. We are beginning to understand some of the molecular and cellular mechanisms that underlie critical processes such as branching morphogenesis, vascular development, and the differentiation of multipotent progenitor populations. Nevertheless, many gaps remain in our knowledge, the filling of which is essential for understanding respiratory disorders, congenital defects in human neonates, and how the disruption of morphogenetic programs early in lung development can lead to deficiencies that persist throughout life.
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Rohrbeck A, Borlak J. Cancer genomics identifies regulatory gene networks associated with the transition from dysplasia to advanced lung adenocarcinomas induced by c-Raf-1. PLoS One 2009; 4:e7315. [PMID: 19812696 PMCID: PMC2754338 DOI: 10.1371/journal.pone.0007315] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Accepted: 09/13/2009] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Lung cancer is a leading cause of cancer morbidity. To improve an understanding of molecular causes of disease a transgenic mouse model was investigated where targeted expression of the serine threonine kinase c-Raf to respiratory epithelium induced initially dysplasia and subsequently adenocarcinomas. This enables dissection of genetic events associated with precancerous and cancerous lesions. METHODOLOGY/PRINCIPAL FINDINGS By laser microdissection cancer cell populations were harvested and subjected to whole genome expression analyses. Overall 473 and 541 genes were significantly regulated, when cancer versus transgenic and non-transgenic cells were compared, giving rise to three distinct and one common regulatory gene network. At advanced stages of tumor growth predominately repression of gene expression was observed, but genes previously shown to be up-regulated in dysplasia were also up-regulated in solid tumors. Regulation of developmental programs as well as epithelial mesenchymal and mesenchymal endothelial transition was a hall mark of adenocarcinomas. Additionally, genes coding for cell adhesion, i.e. the integrins and the tight and gap junction proteins were repressed, whereas ligands for receptor tyrosine kinase such as epi- and amphiregulin were up-regulated. Notably, Vegfr- 2 and its ligand Vegfd, as well as Notch and Wnt signalling cascades were regulated as were glycosylases that influence cellular recognition. Other regulated signalling molecules included guanine exchange factors that play a role in an activation of the MAP kinases while several tumor suppressors i.e. Mcc, Hey1, Fat3, Armcx1 and Reck were significantly repressed. Finally, probable molecular switches forcing dysplastic cells into malignantly transformed cells could be identified. CONCLUSIONS/SIGNIFICANCE This study provides insight into molecular pertubations allowing dysplasia to progress further to adenocarcinoma induced by exaggerted c-Raf kinase activity.
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Affiliation(s)
- Astrid Rohrbeck
- Department of Molecular Medicine and Medical Biotechnology, Fraunhofer Institute of Toxicology and Experimental Medicine, Hannover, Germany
| | - Jürgen Borlak
- Department of Molecular Medicine and Medical Biotechnology, Fraunhofer Institute of Toxicology and Experimental Medicine, Hannover, Germany
- Center for Pharmacology and Toxicology, Hannover Medical School, Hannover, Germany
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Benjamin JT, Gaston DC, Halloran BA, Schnapp LM, Zent R, Prince LS. The role of integrin alpha8beta1 in fetal lung morphogenesis and injury. Dev Biol 2009; 335:407-17. [PMID: 19769957 DOI: 10.1016/j.ydbio.2009.09.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 09/11/2009] [Accepted: 09/15/2009] [Indexed: 10/20/2022]
Abstract
Prenatal inflammation prevents normal lung morphogenesis and leads to bronchopulmonary dysplasia (BPD), a common complication of preterm birth. We previously demonstrated in a bacterial endotoxin mouse model of BPD that disrupting fibronectin localization in the fetal lung mesenchyme causes arrested saccular airway branching. In this study we show that expression of the fibronectin receptor, integrin alpha8beta1 is decreased in the lung mesenchyme in the same inflammation model suggesting it is required for normal lung development. We verified a role for integrin alpha8beta1 in lung development using integrin alpha8-null mice, which develop fusion of the medial and caudal lobes as well as abnormalities in airway division. We further show in vivo and in vitro that alpha8-null fetal lung mesenchymal cells fail to form stable adhesions and have increased migration. Thus we propose that integrin alpha8beta1 plays a critical role in lung morphogenesis by regulating mesenchymal cell adhesion and migration. Furthermore, our data suggest that disruption of the interactions between extracellular matrix and integrin alpha8beta1 may contribute to the pathogenesis of BPD.
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Affiliation(s)
- John T Benjamin
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232-0493, USA
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Karafin MS, Cummings CT, Fu B, Iacobuzio-Donahue CA. The developmental transcription factor Gata4 is overexpressed in pancreatic ductal adenocarcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2009; 3:47-55. [PMID: 19918328 PMCID: PMC2776266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Accepted: 08/16/2009] [Indexed: 05/28/2023]
Abstract
GATA4 is a transcription factor that plays a role in regulating the normal development of many mesoderm and endoderm derived tissues, including the pancreas. Silencing of GATA4 mRNA expression by promoter methylation has been implicated in carcinogenesis of the ovary, lung and colorectum. By contrast, GATA4 mRNA expression is upregulated in pancreatic cancer cell lines and tissues. To further clarify the relationship of GATA4 to pancreatic cancer, we immunolabeled 90 samples of pancreatic ductal adenocarcinoma using a GATA4 specific monoclonal antibody. Both the intensity and percent of labeling was recorded for each carcinoma and correlated to the clinic opathologic features available for each patient. Samples of normal adult (n=26) and fetal pancreatic tissue (n=8) were also immunolabeled for comparison to expression patterns in pancreatic carcinoma tissues. Immunolabeling for GATA4 indicated robust nuclear expression in developing acini in fetal pancreatic tissues, consistent with the role of GATA4 in embryologic development, and in mature pancreatic acinar epithelium. Immunolabeling for GATA4 was also noted within normal duct epithelial cells, although it was always lesser in intensity than for acinar cell nuclei in the same section. Positive GATA4 immunolabeling was seen in 61/90 (68%) infiltrating pancreatic cancers of which 27/90 (30%) showed strong positive labeling. While there was no relationship among GATA4 and patient age, race or pathologic features, we did find a significant association among strong positive labeling and female gender (p=0.01). These findings support previous studies implicating GATA4 in pancreatic cancer and offer new avenues for investigation into this aggressive tumor type.
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Affiliation(s)
- Matthew S. Karafin
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical InstitutionsBaltimore, Maryland, USA
| | - Christopher T. Cummings
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical InstitutionsBaltimore, Maryland, USA
| | - Baojin Fu
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical InstitutionsBaltimore, Maryland, USA
| | - Christine A. Iacobuzio-Donahue
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical InstitutionsBaltimore, Maryland, USA
- Department of Oncology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical InstitutionsBaltimore, Maryland, USA
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Leppäranta O, Pulkkinen V, Koli K, Vähätalo R, Salmenkivi K, Kinnula VL, Heikinheimo M, Myllärniemi M. Transcription factor GATA-6 is expressed in quiescent myofibroblasts in idiopathic pulmonary fibrosis. Am J Respir Cell Mol Biol 2009; 42:626-32. [PMID: 19597127 DOI: 10.1165/rcmb.2009-0021oc] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) (histopathology of usual interstitial pneumonia [UIP]) is a progressive disease with poor prognosis. Characteristic features of IPF/UIP include fibroblastic foci, which are patchy lesions of focal, disarranged myofibroblasts. GATA-6 is a transcription factor linked with cell differentiation. Its role in the development of IPF has not previously been investigated. We hypothesized that GATA-6 participates in the differentiation of fibroblasts into myofibroblasts in IPF/UIP lungs. The expression patterns of GATA-6, the mesenchymal marker alpha-smooth muscle actin (alpha-SMA), and markers for proliferation (Ki67) and apoptosis (caspase-3) were analyzed in human IPF/UIP tissue samples. The effects of GATA-6 overexpression and silencing were studied in cell cultures. The results show that the alpha-SMA-positive fibroblastic foci in IPF/UIP lungs are positive for GATA-6, but negative for Ki67 and caspase-3. Cultured human IPF/UIP fibroblasts expressed GATA-6 mRNA, whereas cells from the normal adult lung did not. In cultured A549 lung epithelial cells, the induction of GATA-6 by transforming growth factor-beta1 resulted in simultaneous expression of alpha-SMA and decrease of E-cadherin. The inhibition of GATA-6 expression in fibroblasts showed that GATA-6 mediates the alpha-SMA-inducing signal of transforming growth factor-beta1. In conclusion, the hallmark of IPF/UIP histopathology, the fibroblast focus, consists of differentiated, quiescent cells that prominently express GATA-6.
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Affiliation(s)
- Outi Leppäranta
- Department of Medicine, Pulmonary Division, FI-00014 University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.
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Stamm C, Choi YH, Nasseri B, Hetzer R. A heart full of stem cells: the spectrum of myocardial progenitor cells in the postnatal heart. Ther Adv Cardiovasc Dis 2009; 3:215-29. [DOI: 10.1177/1753944709336190] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Influencing cellular regeneration processes in the heart has been a long-standing goal in cardiovascular medicine. To some extent, this has been successful in terms of vascular regeneration as well as intercellular connective tissue remodeling processes. Several components of today's routine heart failure medication influence endothelial progenitor cell behavior and support collateral vessel growth in the heart, or have been shown to prevent or reverse fibrosis processes. Cardiomyocyte regeneration, however, has so far escaped therapeutic manipulation strategies. Delivery of exogenous cells of bone marrow origin to the human myocardium may improve heart function, but is not associated with relevant neomyogenesis. However, accumulating evidence indicates that the myocardium contains resident cardiac progenitor cells (CPC) that may be therapeutically useful. This notion indeed represents a paradigm shift but is still controversial. The purpose of this review is to summarize the rapidly expanding current knowledge on CPC, and to assess whether it may be translated into solid therapeutic concepts.
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Affiliation(s)
- Christof Stamm
- BCRT Berlin-Brandenburg Center for Regenerative Therapies, Berlin, Germany; and Deutsches Herzzentrum Berlin, Cardiothoracic Surgery, Berlin, Germany,
| | - Yeong-Hoon Choi
- Deutsches Herzzentrum Berlin, Cardiothoracic Surgery, Berlin, Germany
| | - Boris Nasseri
- Deutsches Herzzentrum Berlin, Cardiothoracic Surgery, Berlin, Germany
| | - Roland Hetzer
- BCRT Berlin-Brandenburg Center for Regenerative Therapies, Berlin, Germany; and Deutsches Herzzentrum Berlin, Cardiothoracic Surgery, Berlin, Germany
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Abstract
Congenital diaphragmatic hernia (CDH) is a common major malformation affecting 1/3000-1/4000 births, which continues to be associated with significant perinatal mortality. Much current research is focused on elucidating the genetics and pathophysiology contributing to CDH to develop more effective therapies. The latest data suggest that many cases of CDH are genetically determined and also indicate that CDH is etiologically heterogeneous. The present review will provide a brief summary of diaphragm development and model organism work most relevant to human CDH and will primarily describe important human phenotypes associated with CDH and also provide recommendations for diagnostic evaluation of a fetus or infant with CDH.
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Affiliation(s)
- B R Pober
- Center for Human Genetics, Massachusetts General Hospital, Boston, MA 02114, USA.
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Chen H, Zhuang F, Liu YH, Xu B, Del Moral P, Deng W, Chai Y, Kolb M, Gauldie J, Warburton D, Moses HL, Shi W. TGF-beta receptor II in epithelia versus mesenchyme plays distinct roles in the developing lung. Eur Respir J 2008; 32:285-95. [PMID: 18321928 DOI: 10.1183/09031936.00165407] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Transforming growth factor (TGF)-beta signalling plays important roles in regulating lung development. However, the specific regulatory functions of TGF-beta signalling in developing lung epithelial versus mesenchymal cells are still unknown. By immunostaining, the expression pattern of the TGF-beta type II receptor (TbetaRII) was first determined in the developing mouse lung. The functions of TbetaRII in developing lung were then determined by conditionally knocking out TbetaRII in the lung epithelium of floxed-TbetaRII/surfactant protein C-reverse tetracycline transactivator/TetO-Cre mice versus mesenchyme of floxed-TbetaRII/Dermo1-Cre mice. TbetaRII was expressed only in distal airway epithelium at early gestation (embryonic day (E)11.5), but in both airway epithelium and mesenchyme from mid-gestation (E14.5) to post-natal day 14. Abrogation of TbetaRII in mouse lung epithelium resulted in retardation of post-natal lung alveolarisation, with markedly decreased type I alveolar epithelial cells, while no abnormality in prenatal lung development was observed. In contrast, blockade of TbetaRII in mesoderm-derived tissues, including lung mesenchyme, resulted in mildly abnormal lung branching and reduced cell proliferation after mid-gestation, accompanied by multiple defects in other organs, including diaphragmatic hernia. The primary lung branching defect was verified in embryonic lung explant culture. The novel findings of the present study suggest that transforming growth factor-beta type II receptor-mediated transforming growth factor-beta signalling plays distinct roles in lung epithelium versus mesenchyme to differentially control specific stages of lung development.
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Affiliation(s)
- H Chen
- Developmental Biology Program, Dept of Surgery, Childrens Hospital Los Angeles, 4650 Sunset Blvd, MS 35, Los Angeles, CA 90027, USA
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Clugston RD, Zhang W, Greer JJ. Gene expression in the developing diaphragm: significance for congenital diaphragmatic hernia. Am J Physiol Lung Cell Mol Physiol 2008; 294:L665-75. [PMID: 18263670 DOI: 10.1152/ajplung.00027.2008] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Congenital diaphragmatic hernia (CDH) is a frequently occurring birth defect and a source of potentially fatal neonatal respiratory distress. Recently, through the application of detailed karyotyping methods, several CDH-critical regions within the human genome have been identified. These regions typically contain several genes. Here we focused on genes from 15q26, the best-characterized CDH-critical region, as well as FOG2 and GATA4, genes singled out from CDH-critical regions at 8q22-8q23 and 8p23.1, respectively. We tested the hypothesis that these putative CDH-related genes are expressed within the developing diaphragm at the time of the hypothesized initial defect. Our results show that 15q26 contains a cluster of genes that are expressed in the developing rodent diaphragm, consistent with an association between deletions in this region and CDH. We then examined the protein expression pattern of positively identified genes within the developing diaphragm. Two major themes emerged. First, those factors strongly associated with CDH are expressed only in the nonmuscular, mesenchymal component of the diaphragm, supporting the hypothesis that CDH has its origins in a mesenchymal defect. Second, these factors are all coexpressed in the same cells. This suggests that cases of CDH with unique genetic etiology may lead to a common defect in these cells and supports the hypothesis that these factors may be members of a common pathway. This study is the first to provide a detailed examination of how genes associated with CDH are expressed in the developing diaphragm and provides an important foundation for understanding how the deletion of specific genes may contribute to abnormal diaphragm formation.
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Affiliation(s)
- Robin D Clugston
- University of Alberta, Department of Physiology, Edmonton, Alberta, Canada
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Kantarci S, Donahoe PK. Congenital diaphragmatic hernia (CDH) etiology as revealed by pathway genetics. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2007; 145C:217-26. [PMID: 17436295 DOI: 10.1002/ajmg.c.30132] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Congenital diaphragmatic hernia (CDH) is a common birth defect with high mortality and morbidity. Two hundred seventy CDH patients were ascertained, carefully phenotyped, and classified as isolated (diaphragm defects alone) or complex (with additional anomalies) cases. We established different strategies to reveal CDH-critical chromosome loci and genes in humans. Candidate genes for sequencing analyses were selected from CDH animal models, genetic intervals of recurrent chromosomal aberration in humans, such as 15q26.1-q26.2 or 1q41-q42.12, as well as genes in the retinoic acid and related pathways and those known to be involved in embryonic lung development. For instance, FOG2, GATA4, and COUP-TFII are all needed for both normal diaphragm and lung development and are likely all in the same genetic and molecular pathway. Linkage analysis was applied first in a large inbred family and then in four multiplex families with Donnai-Barrow syndrome (DBS) associated with CDH. 10K SNP chip and microsatellite markers revealed a DBS locus on chromosome 2q23.3-q31.1. We applied array-based comparative genomic hybridization (aCGH) techniques to over 30, mostly complex, CDH patients and found a de novo microdeletion in a patient with Fryns syndrome related to CDH. Fluorescence in situ hybridization (FISH) and multiplex ligation-dependent probe amplification (MLPA) techniques allowed us to further define the deletion interval. Our aim is to identify genetic intervals and, in those, to prioritize genes that might reveal molecular pathways, mutations in any step of which, might contribute to the same phenotype. More important, the elucidation of pathways may ultimately provide clues to treatment strategies.
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Affiliation(s)
- Sibel Kantarci
- Peadiatric Surgical Research Laboratories at Massachusetts General Hospital, Boston, MA 02114, USA
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50
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Ackerman KG, Pober BR. Congenital diaphragmatic hernia and pulmonary hypoplasia: new insights from developmental biology and genetics. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2007; 145C:105-8. [PMID: 17436306 PMCID: PMC2891760 DOI: 10.1002/ajmg.c.30133] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Barbara R. Pober
- Correspondence to: Barbara R. Pober, Center for Human Genetics, Simches Research Building, Room 222, 185 Cambridge Street, Boston, MA 02114. or
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