1
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Morikawa M, Yoshizaki H, Yasui Y, Nishida S, Saikawa Y, Kohno M, Okajima H. Mesenchymal cells regulate enteric neural crest cell migration via RET-GFRA1b trans-signaling. Biochem Biophys Res Commun 2024; 710:149861. [PMID: 38581949 DOI: 10.1016/j.bbrc.2024.149861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/07/2024] [Accepted: 03/27/2024] [Indexed: 04/08/2024]
Abstract
During early development, the enteric nervous system forms from the migration of enteric neural crest cells (ENCCs) from the foregut to the hindgut, where they undergo proliferation and differentiation facilitated by interactions with enteric mesenchymal cells (EMCs). This study investigates the impact on ENCC migration of EMC-ENCC communication mediated by GFRA1b expressed in EMCs. GFRA1-expressing cells in day 11-12 (E11-12) mouse embryos differentiated into smooth muscle cells from E12 onwards. Observations at E12-13.5 revealed high levels of GFRA1 expression on the anti-mesenteric side of the hindgut, correlating with enhanced ENCC migration. This indicates that GFRA1 in EMCs plays a role in ENCC migration during development. Examining GFRA1 isoforms, we found high levels of GFRA1b, which lacks amino acids 140-144, in EMCs. To assess the impact of GFRA1 isoforms on EMC-ENCC communication, we conducted neurosphere drop assays. This revealed that GFRA1b-expressing cells promoted GDNF-dependent extension and increased neurite density in ENCC neurospheres. Co-culture of ENCC mimetic cells expressing RET and GFRA1a with EMC mimetic cells expressing GFRA1a, GFRA1b, or vector alone showed that only GFRA1b-expressing co-cultured cells sustained RET phosphorylation in ENCC-mimetic cells for over 120 min upon GDNF stimulation. Our study provides evidence that GFRA1b-mediated cell-to-cell communication plays a critical role in ENCC motility in enteric nervous system development. These findings contribute to understanding the cellular interactions and signaling mechanisms that underlie enteric nervous system formation and highlight potential therapeutic targets for gastrointestinal motility disorders.
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Affiliation(s)
- Mari Morikawa
- Department of Pediatrics, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Hisayoshi Yoshizaki
- Department of Pediatric Surgery, Kanazawa Medical University, Ishikawa 920-0293, Japan.
| | - Yoshitomo Yasui
- Department of Pediatric Surgery, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Shoichi Nishida
- Department of Pediatric Surgery, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Yutaka Saikawa
- Department of Pediatrics, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Miyuki Kohno
- Department of Pediatric Surgery, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Hideaki Okajima
- Department of Pediatric Surgery, Kanazawa Medical University, Ishikawa 920-0293, Japan
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2
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Sur A, Wang Y, Capar P, Margolin G, Farrell JA. Single-cell analysis of shared signatures and transcriptional diversity during zebrafish development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.20.533545. [PMID: 36993555 PMCID: PMC10055256 DOI: 10.1101/2023.03.20.533545] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
During development, animals generate distinct cell populations with specific identities, functions, and morphologies. We mapped transcriptionally distinct populations across 489,686 cells from 62 stages during wild-type zebrafish embryogenesis and early larval development (3-120 hours post-fertilization). Using these data, we identified the limited catalog of gene expression programs reused across multiple tissues and their cell-type-specific adaptations. We also determined the duration each transcriptional state is present during development and suggest new long-term cycling populations. Focused analyses of non-skeletal muscle and the endoderm identified transcriptional profiles of understudied cell types and subpopulations, including the pneumatic duct, individual intestinal smooth muscle layers, spatially distinct pericyte subpopulations, and homologs of recently discovered human best4+ enterocytes. The transcriptional regulators of these populations remain unknown, so we reconstructed gene expression trajectories to suggest candidates. To enable additional discoveries, we make this comprehensive transcriptional atlas of early zebrafish development available through our website, Daniocell.
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Affiliation(s)
- Abhinav Sur
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20814
| | - Yiqun Wang
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138
| | - Paulina Capar
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20814
| | - Gennady Margolin
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland 20814
| | - Jeffrey A. Farrell
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20814
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3
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Stavely R, Hotta R, Guyer RA, Picard N, Rahman AA, Omer M, Soos A, Szocs E, Mueller J, Goldstein AM, Nagy N. A distinct transcriptome characterizes neural crest-derived cells at the migratory wavefront during enteric nervous system development. Development 2023; 150:dev201090. [PMID: 36779913 PMCID: PMC10108706 DOI: 10.1242/dev.201090] [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: 07/01/2022] [Accepted: 02/03/2023] [Indexed: 02/14/2023]
Abstract
Enteric nervous system development relies on intestinal colonization by enteric neural crest-derived cells (ENCDCs). This is driven by a population of highly migratory and proliferative ENCDCs at the wavefront, but the molecular characteristics of these cells are unknown. ENCDCs from the wavefront and the trailing region were isolated and subjected to RNA-seq. Wavefront-ENCDCs were transcriptionally distinct from trailing ENCDCs, and temporal modelling confirmed their relative immaturity. This population of ENCDCs exhibited altered expression of ECM and cytoskeletal genes, consistent with a migratory phenotype. Unlike trailing ENCDCs, the wavefront lacked expression of genes related to neuronal or glial maturation. As wavefront ENCDC genes were associated with migration and developmental immaturity, the genes that remain expressed in later progenitor populations may be particularly pertinent to understanding the maintenance of ENCDC progenitor characteristics. Dusp6 expression was specifically upregulated at the wavefront. Inhibiting DUSP6 activity prevented wavefront colonization of the hindgut, and inhibited the migratory ability of post-colonized ENCDCs from midgut and postnatal neurospheres. These effects were reversed by simultaneous inhibition of ERK signaling, indicating that DUSP6-mediated ERK inhibition is required for ENCDC migration in mouse and chick.
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Affiliation(s)
- Rhian Stavely
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Ryo Hotta
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Richard A. Guyer
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Nicole Picard
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Ahmed A. Rahman
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Meredith Omer
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Adam Soos
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Emoke Szocs
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Jessica Mueller
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Allan M. Goldstein
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Nandor Nagy
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
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4
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Peterson JAM, Cooper TA. Clinical and Molecular Insights into Gastrointestinal Dysfunction in Myotonic Dystrophy Types 1 & 2. Int J Mol Sci 2022; 23:ijms232314779. [PMID: 36499107 PMCID: PMC9737721 DOI: 10.3390/ijms232314779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Myotonic dystrophy (DM) is a highly variable, multisystemic disorder that clinically affects one in 8000 individuals. While research has predominantly focused on the symptoms and pathological mechanisms affecting striated muscle and brain, DM patient surveys have identified a high prevalence for gastrointestinal (GI) symptoms amongst affected individuals. Clinical studies have identified chronic and progressive dysfunction of the esophagus, stomach, liver and gallbladder, small and large intestine, and rectum and anal sphincters. Despite the high incidence of GI dysmotility in DM, little is known regarding the pathological mechanisms leading to GI dysfunction. In this review, we summarize results from clinical and molecular analyses of GI dysfunction in both genetic forms of DM, DM type 1 (DM1) and DM type 2 (DM2). Based on current knowledge of DM primary pathological mechanisms in other affected tissues and GI tissue studies, we suggest that misregulation of alternative splicing in smooth muscle resulting from the dysregulation of RNA binding proteins muscleblind-like and CUGBP-elav-like is likely to contribute to GI dysfunction in DM. We propose that a combinatorial approach using clinical and molecular analysis of DM GI tissues and model organisms that recapitulate DM GI manifestations will provide important insight into defects impacting DM GI motility.
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Affiliation(s)
- Janel A. M. Peterson
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Baylor College of Medicine, Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Thomas A. Cooper
- Baylor College of Medicine, Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
- Baylor College of Medicine, Department of Integrative Physiology, Baylor College of Medicine, Houston, TX 77030, USA
- Baylor College of Medicine, Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Correspondence:
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5
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Chevalier NR. Physical organogenesis of the gut. Development 2022; 149:276365. [DOI: 10.1242/dev.200765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
ABSTRACT
The gut has been a central subject of organogenesis since Caspar Friedrich Wolff’s seminal 1769 work ‘De Formatione Intestinorum’. Today, we are moving from a purely genetic understanding of cell specification to a model in which genetics codes for layers of physical–mechanical and electrical properties that drive organogenesis such that organ function and morphogenesis are deeply intertwined. This Review provides an up-to-date survey of the extrinsic and intrinsic mechanical forces acting on the embryonic vertebrate gut during development and of their role in all aspects of intestinal morphogenesis: enteric nervous system formation, epithelium structuring, muscle orientation and differentiation, anisotropic growth and the development of myogenic and neurogenic motility. I outline numerous implications of this biomechanical perspective in the etiology and treatment of pathologies, such as short bowel syndrome, dysmotility, interstitial cells of Cajal-related disorders and Hirschsprung disease.
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Affiliation(s)
- Nicolas R. Chevalier
- Laboratoire Matière et Systèmes Complexes, Université Paris Cité, CNRS UMR 7057 , 10 rue Alice Domon et Léonie Duquet, 75013 Paris , France
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6
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Sicard P, Falco A, Faure S, Thireau J, Lindsey SE, Chauvet N, de Santa Barbara P. High-resolution ultrasound and speckle tracking: a non-invasive approach to assess in vivo gastrointestinal motility during development. Development 2022; 149:dev200625. [PMID: 35912573 PMCID: PMC10655954 DOI: 10.1242/dev.200625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/18/2022] [Indexed: 11/19/2023]
Abstract
Gastrointestinal motor activity has been extensively studied in adults; however, only few studies have investigated fetal motor skills. It is unknown when the gastrointestinal tract starts to contract during the embryonic period and how this function evolves during development. Here, we adapted a non-invasive high-resolution echography technique combined with speckle tracking analysis to examine the gastrointestinal tract motor activity dynamics during chick embryo development. We provided the first recordings of fetal gastrointestinal motility in living embryos without anesthesia. We found that, although gastrointestinal contractions appear very early during development, they become synchronized only at the end of the fetal period. To validate this approach, we used various pharmacological inhibitors and BAPX1 gene overexpression in vivo. We found that the enteric nervous system determines the onset of the synchronized contractions in the stomach. Moreover, alteration of smooth muscle fiber organization led to an impairment of this functional activity. Altogether, our findings show that non-invasive high-resolution echography and speckle tracking analysis allows visualization and quantification of gastrointestinal motility during development and highlight the progressive acquisition of functional and coordinated gastrointestinal motility before birth.
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Affiliation(s)
- Pierre Sicard
- PhyMedExp, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France
- IPAM, Biocampus Montpellier, CNRS, INSERM, University of Montpellier, 34295 Montpellier, France
| | - Amandine Falco
- PhyMedExp, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France
| | - Sandrine Faure
- PhyMedExp, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France
| | - Jérome Thireau
- PhyMedExp, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France
| | - Stéphanie E. Lindsey
- PhyMedExp, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France
- Department of Mechanical and Aerospace Engineering, University of California San Diego (UCSD), La Jolla, CA 92093, USA
| | - Norbert Chauvet
- PhyMedExp, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France
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7
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Chen H, Li X, Gao L, Zhang D, Han T. Construction and identification of an immortalized rat intestinal smooth muscle cell line. Neurogastroenterol Motil 2022; 34:e14359. [PMID: 35411597 DOI: 10.1111/nmo.14359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 01/29/2022] [Accepted: 03/07/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Although intestinal smooth muscle cells (ISMCs) play an important role in the remodeling of the intestinal structure, considerably less is known about the molecular mechanisms that mediate the development and growth of ISMCs. A possible reason for this lag is the lack of cell lines that recapitulate ISMCs in vivo. METHODS In this study, we separated the primary ISMCs from the rat intestinal tract and integrated the Simian Vacuolating virus 40 Large T antigen (SV40 LT) gene into the genome of the primary ISMC to construct an immortalized cell line named ISMC-Hc. KEY RESULTS ISMC-Hc proliferated persistently without any signs of senescence up to 50 passages and without neoplasticity. Analysis of the genome isolated from ISMC-Hc confirmed that the SV40LT gene recombined in the genome, and mRNA reverse transcription PCR suggested that SV40LT could be expressed normally. In addition, ISMC-Hc had few morphological differences compared with the primary ISMC. Furthermore, ISMC-Hc showed the expression of the specific protein markers (alpha-smooth muscle actin and desmin) through immunofluorescence analysis. Further studies showed that ISMC-Hc had enhanced contractility and expressed the glial-derived neurotrophic factor, nerve growth factor, ciliary neurotrophic factor, and leukemia inhibitory factor after co-stimulation with IL-1 beta and TNF-alpha. CONCLUSIONS AND INFERENCES ISMC-Hc showed characteristics similar to that of primary ISMC and can be used as an in vitro model to explore the cellular and molecular mechanisms of ISMC. Additionally, the immortalized ISMCs could help investigate the basic functional mechanisms of intestinal diseases.
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Affiliation(s)
- Huiling Chen
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China.,The Second Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xiaoli Li
- The Second Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Liping Gao
- The Second Clinical Medical College of Lanzhou University, Lanzhou, China.,Key Laboratory of digestive diseases, Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China
| | - Dekui Zhang
- Key Laboratory of digestive diseases, Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China
| | - Tiyun Han
- Key Laboratory of digestive diseases, Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China
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8
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Delalande JM, Nagy N, McCann CJ, Natarajan D, Cooper JE, Carreno G, Dora D, Campbell A, Laurent N, Kemos P, Thomas S, Alby C, Attié-Bitach T, Lyonnet S, Logan MP, Goldstein AM, Davey MG, Hofstra RMW, Thapar N, Burns AJ. TALPID3/KIAA0586 Regulates Multiple Aspects of Neuromuscular Patterning During Gastrointestinal Development in Animal Models and Human. Front Mol Neurosci 2022; 14:757646. [PMID: 35002618 PMCID: PMC8733242 DOI: 10.3389/fnmol.2021.757646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/10/2021] [Indexed: 12/26/2022] Open
Abstract
TALPID3/KIAA0586 is an evolutionary conserved protein, which plays an essential role in protein trafficking. Its role during gastrointestinal (GI) and enteric nervous system (ENS) development has not been studied previously. Here, we analyzed chicken, mouse and human embryonic GI tissues with TALPID3 mutations. The GI tract of TALPID3 chicken embryos was shortened and malformed. Histologically, the gut smooth muscle was mispatterned and enteric neural crest cells were scattered throughout the gut wall. Analysis of the Hedgehog pathway and gut extracellular matrix provided causative reasons for these defects. Interestingly, chicken intra-species grafting experiments and a conditional knockout mouse model showed that ENS formation did not require TALPID3, but was dependent on correct environmental cues. Surprisingly, the lack of TALPID3 in enteric neural crest cells (ENCC) affected smooth muscle and epithelial development in a non-cell-autonomous manner. Analysis of human gut fetal tissues with a KIAA0586 mutation showed strikingly similar findings compared to the animal models demonstrating conservation of TALPID3 and its necessary role in human GI tract development and patterning.
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Affiliation(s)
- Jean Marie Delalande
- Centre for Immunobiology, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Stem Cells and Regenerative Medicine, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Nandor Nagy
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Conor J McCann
- Stem Cells and Regenerative Medicine, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Dipa Natarajan
- Stem Cells and Regenerative Medicine, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Julie E Cooper
- Developmental Biology and Cancer Program, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Gabriela Carreno
- Developmental Biology and Cancer Program, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - David Dora
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Alison Campbell
- Department of Paediatric Surgery, Christchurch Hospital, Christchurch, New Zealand
| | - Nicole Laurent
- Génétique et Anomalies du Développement, Université de Bourgogne, Service d'Anatomie Pathologique, Dijon, France
| | - Polychronis Kemos
- Centre for Immunobiology, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Sophie Thomas
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163 Institut Imagine, Paris, France
| | - Caroline Alby
- Department of Genetics, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Tania Attié-Bitach
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163 Institut Imagine, Paris, France.,Department of Genetics, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France.,Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Stanislas Lyonnet
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163 Institut Imagine, Paris, France.,Department of Genetics, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France.,Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Malcolm P Logan
- Randall Division of Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | - Allan M Goldstein
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Megan G Davey
- Division of Developmental Biology, The Roslin Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Robert M W Hofstra
- Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Nikhil Thapar
- Stem Cells and Regenerative Medicine, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom.,Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Alan J Burns
- Stem Cells and Regenerative Medicine, Birth Defects Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom.,Division of Neurogastroenterology and Motility, Department of Gastroenterology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom.,Gastrointestinal Drug Discovery Unit, Takeda Pharmaceuticals International, Inc., Cambridge, MA, United States
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9
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Stavely R, Bhave S, Ho WLN, Ahmed M, Pan W, Rahman AA, Ulloa J, Bousquet N, Omer M, Guyer R, Nagy N, Goldstein AM, Hotta R. Enteric mesenchymal cells support the growth of postnatal enteric neural stem cells. Stem Cells 2021; 39:1236-1252. [PMID: 33938072 DOI: 10.1002/stem.3388] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 04/08/2021] [Indexed: 01/11/2023]
Abstract
Interplay between embryonic enteric neural stem cells (ENSCs) and enteric mesenchymal cells (EMCs) in the embryonic gut is essential for normal development of the enteric nervous system. Disruption of these interactions underlies the pathogenesis of intestinal aganglionosis in Hirschsprung disease (HSCR). ENSC therapy has been proposed as a possible treatment for HSCR, but whether the survival and development of postnatal-derived ENSCs similarly rely on signals from the mesenchymal environment is unknown and has important implications for developing protocols to expand ENSCs for cell transplantation therapy. Enteric neural crest-derived cells (ENCDCs) and EMCs were cultured from the small intestine of Wnt1-Rosa26-tdTomato mice. EMCs promoted the expansion of ENCDCs 9.5-fold by inducing ENSC properties, including expression of Nes, Sox10, Sox2, and Ngfr. EMCs enhanced the neurosphere-forming ability of ENCDCs, and this persisted after withdrawal of the EMCs. These effects were mediated by paracrine factors and several ligands known to support neural stem cells were identified in EMCs. Using the optimized expansion procedures, neurospheres were generated from small intestine of the Ednrb-/- mouse model of HSCR. These ENSCs had similar proliferative and migratory capacity to Ednrb+/+ ENSCs, albeit neurospheres contained fewer neurons. ENSCs derived from Ednrb-/- mice generated functional neurons with similar calcium responses to Ednrb+/+ ENSCs and survived after transplantation into the aganglionic colon of Ednrb-/- recipients. EMCs act as supporting cells to ENSCs postnatally via an array of synergistically acting paracrine signaling factors. These properties can be leveraged to expand autologous ENSCs from patients with HSCR mutations for therapeutic application.
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Affiliation(s)
- Rhian Stavely
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sukhada Bhave
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Wing Lam N Ho
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Minhal Ahmed
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,College of Engineering, Northeastern University, Boston, Massachusetts, USA
| | - Weikang Pan
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Pediatric Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an City, People's Republic of China
| | - Ahmed A Rahman
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jessica Ulloa
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nicole Bousquet
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Meredith Omer
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Richard Guyer
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nandor Nagy
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Allan M Goldstein
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ryo Hotta
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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10
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Chevalier NR, Ammouche Y, Gomis A, Langlois L, Guilbert T, Bourdoncle P, Dufour S. A neural crest cell isotropic-to-nematic phase transition in the developing mammalian gut. Commun Biol 2021; 4:770. [PMID: 34162999 PMCID: PMC8222382 DOI: 10.1038/s42003-021-02333-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 06/07/2021] [Indexed: 11/09/2022] Open
Abstract
While the colonization of the embryonic gut by neural crest cells has been the subject of intense scrutiny over the past decades, we are only starting to grasp the morphogenetic transformations of the enteric nervous system happening in the fetal stage. Here, we show that enteric neural crest cell transit during fetal development from an isotropic cell network to a square grid comprised of circumferentially-oriented cell bodies and longitudinally-extending interganglionic fibers. We present ex-vivo dynamic time-lapse imaging of this isotropic-to-nematic phase transition and show that it occurs concomitantly with circular smooth muscle differentiation in all regions of the gastrointestinal tract. Using conditional mutant embryos with enteric neural crest cells depleted of β1-integrins, we show that cell-extracellular matrix anchorage is necessary for ganglia to properly reorient. We demonstrate by whole mount second harmonic generation imaging that fibrous, circularly-spun collagen I fibers are in direct contact with neural crest cells during the orientation transition, providing an ideal orientation template. We conclude that smooth-muscle associated extracellular matrix drives a critical reorientation transition of the enteric nervous system in the mammalian fetus.
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Affiliation(s)
- Nicolas R Chevalier
- Laboratoire Matière et Systèmes Complexes, Université de Paris/CNRS UMR 7057, Paris, France.
| | - Yanis Ammouche
- Laboratoire Matière et Systèmes Complexes, Université de Paris/CNRS UMR 7057, Paris, France
| | - Anthony Gomis
- Laboratoire Matière et Systèmes Complexes, Université de Paris/CNRS UMR 7057, Paris, France
| | - Lucas Langlois
- Laboratoire Matière et Systèmes Complexes, Université de Paris/CNRS UMR 7057, Paris, France
| | - Thomas Guilbert
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Université de Paris (UMR-S1016), Paris, France
| | - Pierre Bourdoncle
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Université de Paris (UMR-S1016), Paris, France
| | - Sylvie Dufour
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France
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11
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Le TL, Galmiche L, Levy J, Suwannarat P, Hellebrekers DM, Morarach K, Boismoreau F, Theunissen TE, Lefebvre M, Pelet A, Martinovic J, Gelot A, Guimiot F, Calleroz A, Gitiaux C, Hully M, Goulet O, Chardot C, Drunat S, Capri Y, Bole-Feysot C, Nitschké P, Whalen S, Mouthon L, Babcock HE, Hofstra R, de Coo IF, Tabet AC, Molina TJ, Keren B, Brooks A, Smeets HJ, Marklund U, Gordon CT, Lyonnet S, Amiel J, Bondurand N. Dysregulation of the NRG1/ERBB pathway causes a developmental disorder with gastrointestinal dysmotility in humans. J Clin Invest 2021; 131:145837. [PMID: 33497358 DOI: 10.1172/jci145837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/14/2021] [Indexed: 02/06/2023] Open
Abstract
Hirschsprung disease (HSCR) is the most frequent developmental anomaly of the enteric nervous system, with an incidence of 1 in 5000 live births. Chronic intestinal pseudo-obstruction (CIPO) is less frequent and classified as neurogenic or myogenic. Isolated HSCR has an oligogenic inheritance with RET as the major disease-causing gene, while CIPO is genetically heterogeneous, caused by mutations in smooth muscle-specific genes. Here, we describe a series of patients with developmental disorders including gastrointestinal dysmotility, and investigate the underlying molecular bases. Trio-exome sequencing led to the identification of biallelic variants in ERBB3 and ERBB2 in 8 individuals variably associating HSCR, CIPO, peripheral neuropathy, and arthrogryposis. Thorough gut histology revealed aganglionosis, hypoganglionosis, and intestinal smooth muscle abnormalities. The cell type-specific ErbB3 and ErbB2 function was further analyzed in mouse single-cell RNA sequencing data and in a conditional ErbB3-deficient mouse model, revealing a primary role for ERBB3 in enteric progenitors. The consequences of the identified variants were evaluated using quantitative real-time PCR (RT-qPCR) on patient-derived fibroblasts or immunoblot assays on Neuro-2a cells overexpressing WT or mutant proteins, revealing either decreased expression or altered phosphorylation of the mutant receptors. Our results demonstrate that dysregulation of ERBB3 or ERBB2 leads to a broad spectrum of developmental anomalies, including intestinal dysmotility.
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Affiliation(s)
- Thuy-Linh Le
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
| | - Louise Galmiche
- INSERM UMR 1235, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, University of Nantes, Nantes, France.,Pathology Department, Assistance Publique Hôpitaux de Paris (AP-HP), Necker-Enfants Malades Hospital, Paris, France
| | - Jonathan Levy
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France.,Université de Paris, NeuroDiderot, INSERM UMR 1141, Paris, France
| | - Pim Suwannarat
- Department of Genetics, Mid-Atlantic Permanente Medical Group, Suitland, Maryland, USA
| | - Debby Mei Hellebrekers
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, Netherlands
| | - Khomgrit Morarach
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Franck Boismoreau
- Institut de Biologie de l'ENS (IBENS), INSERM, CNRS, École Normale Supérieure, PSL Research University, Paris, France
| | - Tom Ej Theunissen
- Department of Genetics and Cell Biology, Maastricht University, Maastricht, Netherlands
| | - Mathilde Lefebvre
- Fetal Pathology Unit, Armand Trousseau Hospital, AP-HP, Paris, France
| | - Anna Pelet
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
| | - Jelena Martinovic
- Fetal Pathology Unit, Antoine Béclère Hospital, AP-HP, Paris-Saclay University, Clamart, France
| | - Antoinette Gelot
- Neuropathology, Pathology Department, Armand Trousseau Hospital, AP-HP, Paris, France.,Aix-Marseille University, INMED INSERM UMR1249, Campus de Luminy, Marseille, France
| | - Fabien Guimiot
- Université de Paris, NeuroDiderot, INSERM UMR 1141, Paris, France.,Fetal Pathology Unit, Robert Debré Hospital, AP-HP, Paris, France
| | - Amanda Calleroz
- Pathology and Laboratory Medicine Division, Children's National Hospital, Washington DC, USA
| | - Cyril Gitiaux
- Department of Pediatric Clinical Neurophysiology, Necker-Enfants Malades Hospital, AP-HP, Université de Paris, Paris, France
| | - Marie Hully
- Department of Pediatric Neurology and Rehabilitation, Necker-Enfants Malades Hospital, AP-HP, Université de Paris, Paris, France
| | - Olivier Goulet
- Department of Pediatric Gastroenterology-Hepatology-Nutrition, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Christophe Chardot
- Department of Pediatric Surgery, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Severine Drunat
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France.,Université de Paris, NeuroDiderot, INSERM UMR 1141, Paris, France
| | - Yline Capri
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France
| | - Christine Bole-Feysot
- Genomics Core Facility, Imagine Institute-Structure Federative de Recherche Necker, INSERM UMR 1163 and INSERM US24/CNRS UMS 3633, Université de Paris, Paris, France
| | | | - Sandra Whalen
- Clinical Genetics Unit and Reference Center, Anomalies du Développement et Syndromes Malformatifs, AP-HP, Sorbonne University, Armand Trousseau Hospital, Paris, France
| | - Linda Mouthon
- Department of Genetics, La Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Holly E Babcock
- Children's National Hospital, Rare Disease Institute, Washington, DC, USA
| | - Robert Hofstra
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, Netherlands
| | - Irenaeus Fm de Coo
- Department of Toxicogenomics, Unit Clinical Genomics, Maastricht University, MHeNs School for Mental Health and Neuroscience, Maastricht, Netherlands
| | - Anne-Claude Tabet
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France.,Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, Université de Paris, Paris, France
| | - Thierry J Molina
- Pathology Department, Assistance Publique Hôpitaux de Paris (AP-HP), Necker-Enfants Malades Hospital, Paris, France.,Université de Paris, Imagine Institute, Laboratory of Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM UMR 1163, Paris, France
| | - Boris Keren
- Department of Genetics, La Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Alice Brooks
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, Netherlands
| | - Hubert Jm Smeets
- Department of Toxicogenomics, Unit Clinical Genomics, Maastricht University, MHeNs School for Mental Health and Neuroscience, Maastricht, Netherlands
| | - Ulrika Marklund
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Christopher T Gordon
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
| | - Stanislas Lyonnet
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France.,Fédération de Génétique, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Jeanne Amiel
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France.,Fédération de Génétique, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Nadège Bondurand
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
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12
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Gershon MD. Hirschsprung disease and more: dysregulation of ERBB2 and ERBB3. J Clin Invest 2021; 131:146389. [PMID: 33720042 DOI: 10.1172/jci146389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The enteric nervous system mediates reflexes independently of the brain and spinal cord and transmits signals bidirectionally between the gut and the brain. Hirschsprung disease and chronic intestinal pseudo-obstruction (CIPO) and pediatric CIPO are examples of congenital defects that impair gastrointestinal motility. In this issue of the JCI, Thuy-Linh Le et al. analyzed eight patients with defects in tissue that arose from the neural crest. The patients carried homozygous or heterozygous variants in ERBB3 or ERBB2, which encode transmembrane epidermal growth factor receptors that bind neuroregulin 1 (NRG1). Notably, the genetic variants resulted in loss of function with decreased expression or aberrant phosphorylation of the ERBB3/ERBB2 receptors. Experiments using mice revealed that Erbb3 and Erbb2 were expressed in enteric neuronal progenitor cells. This study is an outstanding example of descriptive observation that begs for mechanistic exploration to reveal precisely how the NRG1/ERBB3/ERBB2 pathway influences ENS development.
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13
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Ganz J, Melancon E, Wilson C, Amores A, Batzel P, Strader M, Braasch I, Diba P, Kuhlman JA, Postlethwait JH, Eisen JS. Epigenetic factors Dnmt1 and Uhrf1 coordinate intestinal development. Dev Biol 2019; 455:473-484. [PMID: 31394080 DOI: 10.1016/j.ydbio.2019.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/05/2019] [Accepted: 08/01/2019] [Indexed: 12/15/2022]
Abstract
Intestinal tract development is a coordinated process involving signaling among the progenitors and developing cells from all three germ layers. Development of endoderm-derived intestinal epithelium has been shown to depend on epigenetic modifications, but whether that is also the case for intestinal tract cell types from other germ layers remains unclear. We found that functional loss of a DNA methylation machinery component, ubiquitin-like protein containing PHD and RING finger domains 1 (uhrf1), leads to reduced numbers of ectoderm-derived enteric neurons and severe disruption of mesoderm-derived intestinal smooth muscle. Genetic chimeras revealed that Uhrf1 functions both cell-autonomously in enteric neuron precursors and cell-non-autonomously in surrounding intestinal cells, consistent with what is known about signaling interactions between these cell types that promote one another's development. Uhrf1 recruits the DNA methyltransferase Dnmt1 to unmethylated DNA during replication. Dnmt1 is also expressed in enteric neurons and smooth muscle progenitors. dnmt1 mutants have fewer enteric neurons and disrupted intestinal smooth muscle compared to wildtypes. Because dnmt1;uhrf1 double mutants have a similar phenotype to dnmt1 and uhrf1 single mutants, Dnmt1 and Uhrf1 must function together during enteric neuron and intestinal muscle development. This work shows that genes controlling epigenetic modifications are important to coordinate intestinal tract development, provides the first demonstration that these genes influence development of the ENS, and advances uhrf1 and dnmt1 as potential new Hirschsprung disease candidates.
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Affiliation(s)
- Julia Ganz
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Ellie Melancon
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Catherine Wilson
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Angel Amores
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Peter Batzel
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Marie Strader
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Ingo Braasch
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Parham Diba
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Julie A Kuhlman
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - John H Postlethwait
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Judith S Eisen
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA.
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14
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Abstract
According to current scientific standards, the fascia is a connective tissue derived from two separate germ layers, the mesoderm (trunk and limbs, part of the neck) and the ectoderm (cervical tract and skull). The fascia has the property of maintaining the shape and function of its anatomical district, but it also can adapt to mechanical-metabolic stimuli. Smooth muscle and non-voluntary striated musculature originated from the mesoderm have never been properly considered as a type of fascia. They are some of the viscera present in the mediastinum, in the abdomen and in the pelvic floor. This text represents the first article in the international scientific field that discusses the inclusion of some viscera in the context of what is considered fascia, thanks to the efforts of our committee for the definition and nomenclature of the fascial tissue of the Foundation of Osteopathic Research and Clinical Endorsement (FORCE).
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Affiliation(s)
- Bruno Bordoni
- Cardiology, Foundation Don Carlo Gnocchi, Milan, ITA
| | | | - Bruno Morabito
- Osteopathy, School of Osteopathic Centre for Research and Studies, Milan, ITA
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15
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Huycke TR, Tabin CJ. Chick midgut morphogenesis. THE INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY 2019; 62:109-119. [PMID: 29616718 DOI: 10.1387/ijdb.170325ct] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The gastrointestinal tract is an essential system of organs required for nutrient absorption. As a simple tube early in development, the primitive gut is patterned along its anterior-posterior axis into discrete compartments with unique morphologies relevant to their functions in the digestive process. These morphologies are acquired gradually through development as the gut is patterned by tissue interactions, both molecular and mechanical in nature, involving all three germ layers. With a focus on midgut morphogenesis, we review work in the chick embryo demonstrating how these molecular signals and mechanical forces sculpt the developing gut tube into its mature form. In particular, we highlight two mechanisms by which the midgut increases its absorptive surface area: looping and villification. Additionally, we review the differentiation and patterning of the intestinal mesoderm into the layers of smooth muscle that mechanically drive peristalsis and the villification process itself. Where relevant, we discuss the mechanisms of chick midgut morphogenesis in the context of experimental data from other model systems.
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Affiliation(s)
- Tyler R Huycke
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
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16
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Jaslove JM, Nelson CM. Smooth muscle: a stiff sculptor of epithelial shapes. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170318. [PMID: 30249770 PMCID: PMC6158200 DOI: 10.1098/rstb.2017.0318] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2018] [Indexed: 12/11/2022] Open
Abstract
Smooth muscle is increasingly recognized as a key mechanical sculptor of epithelia during embryonic development. Smooth muscle is a mesenchymal tissue that surrounds the epithelia of organs including the gut, blood vessels, lungs, bladder, ureter, uterus, oviduct and epididymis. Smooth muscle is stiffer than its adjacent epithelium and often serves its morphogenetic function by physically constraining the growth of a proliferating epithelial layer. This constraint leads to mechanical instabilities and epithelial morphogenesis through buckling. Smooth muscle stiffness alone, without smooth muscle cell shortening, seems to be sufficient to drive epithelial morphogenesis. Fully understanding the development of organs that use smooth muscle stiffness as a driver of morphogenesis requires investigating how smooth muscle develops, a key aspect of which is distinguishing smooth muscle-like tissues from one another in vivo and in culture. This necessitates a comprehensive appreciation of the genetic, anatomical and functional markers that are used to distinguish the different subtypes of smooth muscle (for example, vascular versus visceral) from similar cell types (including myofibroblasts and myoepithelial cells). Here, we review how smooth muscle acts as a mechanical driver of morphogenesis and discuss ways of identifying smooth muscle, which is critical for understanding these morphogenetic events.This article is part of the Theo Murphy meeting issue 'Mechanics of Development'.
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Affiliation(s)
- Jacob M Jaslove
- Department of Molecular Biology, Princeton University, 303 Hoyt Laboratory, William Street, Princeton, NJ 08544, USA
- Graduate School of Biomedical Sciences, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA
| | - Celeste M Nelson
- Department of Molecular Biology, Princeton University, 303 Hoyt Laboratory, William Street, Princeton, NJ 08544, USA
- Department of Chemical and Biological Engineering, Princeton University, 303 Hoyt Laboratory, William Street, Princeton, NJ 08544, USA
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17
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Martin LY, Ladd MR, Werts A, Sodhi CP, March JC, Hackam DJ. Tissue engineering for the treatment of short bowel syndrome in children. Pediatr Res 2018; 83:249-257. [PMID: 28937976 PMCID: PMC6002962 DOI: 10.1038/pr.2017.234] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 09/07/2017] [Indexed: 12/11/2022]
Abstract
Short bowel syndrome is a major cause of morbidity and mortality in children. Despite decades of experience in the management of short bowel syndrome, current therapy is primarily supportive. Definitive treatment often requires intestinal transplantation, which is associated with significant morbidity and mortality. In order to develop novel approaches to the treatment of short bowel syndrome, we and others have focused on the development of an artificial intestine, by placing intestinal stem cells on a bioscaffold that has an absorptive surface resembling native intestine, and taking advantage of neovascularization to develop a blood supply. This review will explore recent advances in biomaterials, vascularization, and progress toward development of a functional epithelium and mesenchymal niche, highlighting both success and ongoing challenges in the field.
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Affiliation(s)
- Laura Y. Martin
- Division of General Pediatric Surgery, Johns Hopkins Children's Center, Baltimore MD 21287
- Department of Surgery, Johns Hopkins University and Johns Hopkins children's Center, Baltimore MD 21287
| | - Mitchell R. Ladd
- Division of General Pediatric Surgery, Johns Hopkins Children's Center, Baltimore MD 21287
- Department of Surgery, Johns Hopkins University and Johns Hopkins children's Center, Baltimore MD 21287
| | - Adam Werts
- Division of General Pediatric Surgery, Johns Hopkins Children's Center, Baltimore MD 21287
- Department of Surgery, Johns Hopkins University and Johns Hopkins children's Center, Baltimore MD 21287
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University and Johns Hopkins children's Center, Baltimore MD 21287
| | - Chhinder P. Sodhi
- Division of General Pediatric Surgery, Johns Hopkins Children's Center, Baltimore MD 21287
- Department of Surgery, Johns Hopkins University and Johns Hopkins children's Center, Baltimore MD 21287
| | - John C. March
- Department of Biomedical Engineering, Cornell University, Ithica, NY
| | - David J. Hackam
- Division of General Pediatric Surgery, Johns Hopkins Children's Center, Baltimore MD 21287
- Department of Surgery, Johns Hopkins University and Johns Hopkins children's Center, Baltimore MD 21287
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