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Fan Y, Hackland J, Baggiolini A, Hung LY, Zhao H, Zumbo P, Oberst P, Minotti AP, Hergenreder E, Najjar S, Huang Z, Cruz NM, Zhong A, Sidharta M, Zhou T, de Stanchina E, Betel D, White RM, Gershon M, Margolis KG, Studer L. hPSC-derived sacral neural crest enables rescue in a severe model of Hirschsprung's disease. Cell Stem Cell 2023; 30:264-282.e9. [PMID: 36868194 PMCID: PMC10034921 DOI: 10.1016/j.stem.2023.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 11/22/2022] [Accepted: 02/02/2023] [Indexed: 03/05/2023]
Abstract
The enteric nervous system (ENS) is derived from both the vagal and sacral component of the neural crest (NC). Here, we present the derivation of sacral ENS precursors from human PSCs via timed exposure to FGF, WNT, and GDF11, which enables posterior patterning and transition from posterior trunk to sacral NC identity, respectively. Using a SOX2::H2B-tdTomato/T::H2B-GFP dual reporter hPSC line, we demonstrate that both trunk and sacral NC emerge from a double-positive neuro-mesodermal progenitor (NMP). Vagal and sacral NC precursors yield distinct neuronal subtypes and migratory behaviors in vitro and in vivo. Remarkably, xenografting of both vagal and sacral NC lineages is required to rescue a mouse model of total aganglionosis, suggesting opportunities in the treatment of severe forms of Hirschsprung's disease.
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Affiliation(s)
- Yujie Fan
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA
| | - James Hackland
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Arianna Baggiolini
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Lin Y Hung
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Huiyong Zhao
- Antitumor Assessment Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Paul Zumbo
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10065, USA; Applied Bioinformatics Core, Weill Cornell Medicine, New York, NY 10065, USA
| | - Polina Oberst
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Andrew P Minotti
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA
| | - Emiliano Hergenreder
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA
| | - Sarah Najjar
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Zixing Huang
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Nelly M Cruz
- Cancer Biology and Genetics and Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Aaron Zhong
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; The SKI Stem Cell Research Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Mega Sidharta
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; The SKI Stem Cell Research Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ting Zhou
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; The SKI Stem Cell Research Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Elisa de Stanchina
- Antitumor Assessment Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Doron Betel
- Applied Bioinformatics Core, Weill Cornell Medicine, New York, NY 10065, USA; Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Richard M White
- Cancer Biology and Genetics and Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Michael Gershon
- Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Kara Gross Margolis
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA; Department of Pediatrics, NYU Grossman School of Medicine, New York, NY 10010, USA
| | - Lorenz Studer
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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Lee HC. Gene and TET1 association in Hirschsprung disease. Pediatr Neonatol 2022; 63:327-328. [PMID: 35739021 DOI: 10.1016/j.pedneo.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 05/28/2022] [Indexed: 11/30/2022] Open
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Byrnes KG, McDermott K, Coffey JC. Development of mesenteric tissues. Semin Cell Dev Biol 2018; 92:55-62. [PMID: 30347243 DOI: 10.1016/j.semcdb.2018.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/10/2018] [Indexed: 02/06/2023]
Abstract
Mesothelial, neurovascular, lymphatic, adipose and mesenchymal tissues make up the mesentery. These tissues are pathobiologically important for numerous reasons. Collectively, they form a continuous, discrete and substantive organ. Additionally, they maintain abdominal digestive organs in position and in continuity with other systems. Furthermore, as they occupy a central position, they mediate transmission of signals between the abdominal digestive system and the remainder of the body. Despite this physiologic centrality, mesenteric tissue development has received little investigatory focus. However, recent advances in our understanding of anatomy demonstrate continuity between all mesenteric tissues, thereby linking previously unrelated studies. In this review, we examine the development of mesenteric tissue in normality and in the setting of congenital abnormalities.
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Affiliation(s)
- Kevin Gerard Byrnes
- Department of Surgery, University Hospital Limerick, Limerick, Ireland; Graduate Entry Medical School, University of Limerick, Limerick, Ireland
| | - Kieran McDermott
- Graduate Entry Medical School, University of Limerick, Limerick, Ireland
| | - John Calvin Coffey
- Department of Surgery, University Hospital Limerick, Limerick, Ireland; Graduate Entry Medical School, University of Limerick, Limerick, Ireland; Centre for Interventions in Infection, Inflammation and Immunity (4i), University of Limerick, Limerick, Ireland.
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Uribe RA, Hong SS, Bronner ME. Retinoic acid temporally orchestrates colonization of the gut by vagal neural crest cells. Dev Biol 2017; 433:17-32. [PMID: 29108781 DOI: 10.1016/j.ydbio.2017.10.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 10/23/2017] [Indexed: 02/06/2023]
Abstract
The enteric nervous system arises from neural crest cells that migrate as chains into and along the primitive gut, subsequently differentiating into enteric neurons and glia. Little is known about the mechanisms governing neural crest migration en route to and along the gut in vivo. Here, we report that Retinoic Acid (RA) temporally controls zebrafish enteric neural crest cell chain migration. In vivo imaging reveals that RA loss severely compromises the integrity and migration of the chain of neural crest cells during the window of time window when they are moving along the foregut. After loss of RA, enteric progenitors accumulate in the foregut and differentiate into enteric neurons, but subsequently undergo apoptosis resulting in a striking neuronal deficit. Moreover, ectopic expression of the transcription factor meis3 and/or the receptor ret, partially rescues enteric neuron colonization after RA attenuation. Collectively, our findings suggest that retinoic acid plays a critical temporal role in promoting enteric neural crest chain migration and neuronal survival upstream of Meis3 and RET in vivo.
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Affiliation(s)
- Rosa A Uribe
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; Department of Biosciences, Rice University, Houston, TX 77005, USA.
| | - Stephanie S Hong
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Marianne E Bronner
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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Roy-Carson S, Natukunda K, Chou HC, Pal N, Farris C, Schneider SQ, Kuhlman JA. Defining the transcriptomic landscape of the developing enteric nervous system and its cellular environment. BMC Genomics 2017; 18:290. [PMID: 28403821 PMCID: PMC5389105 DOI: 10.1186/s12864-017-3653-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 03/22/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Motility and the coordination of moving food through the gastrointestinal tract rely on a complex network of neurons known as the enteric nervous system (ENS). Despite its critical function, many of the molecular mechanisms that direct the development of the ENS and the elaboration of neural network connections remain unknown. The goal of this study was to transcriptionally identify molecular pathways and candidate genes that drive specification, differentiation and the neural circuitry of specific neural progenitors, the phox2b expressing ENS cell lineage, during normal enteric nervous system development. Because ENS development is tightly linked to its environment, the transcriptional landscape of the cellular environment of the intestine was also analyzed. RESULTS Thousands of zebrafish intestines were manually dissected from a transgenic line expressing green fluorescent protein under the phox2b regulatory elements [Tg(phox2b:EGFP) w37 ]. Fluorescence-activated cell sorting was used to separate GFP-positive phox2b expressing ENS progenitor and derivatives from GFP-negative intestinal cells. RNA-seq was performed to obtain accurate, reproducible transcriptional profiles and the unbiased detection of low level transcripts. Analysis revealed genes and pathways that may function in ENS cell determination, genes that may be identifiers of different ENS subtypes, and genes that define the non-neural cellular microenvironment of the ENS. Differential expression analysis between the two cell populations revealed the expected neuronal nature of the phox2b expressing lineage including the enrichment for genes required for neurogenesis and synaptogenesis, and identified many novel genes not previously associated with ENS development. Pathway analysis pointed to a high level of G-protein coupled pathway activation, and identified novel roles for candidate pathways such as the Nogo/Reticulon axon guidance pathway in ENS development. CONCLUSION We report the comprehensive gene expression profiles of a lineage-specific population of enteric progenitors, their derivatives, and their microenvironment during normal enteric nervous system development. Our results confirm previously implicated genes and pathways required for ENS development, and also identify scores of novel candidate genes and pathways. Thus, our dataset suggests various potential mechanisms that drive ENS development facilitating characterization and discovery of novel therapeutic strategies to improve gastrointestinal disorders.
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Affiliation(s)
- Sweta Roy-Carson
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Kevin Natukunda
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Hsien-Chao Chou
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA.,Present Address: National Cancer Institute, US National Institutes of Health, Bethesda, Maryland, USA
| | - Narinder Pal
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA.,Present address: North Central Regional Plant Introduction Station, 1305 State Ave, Ames, IA, 50014, USA
| | - Caitlin Farris
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA.,Present address: Pioneer Hi-Bred International, Johnson, IA, 50131, USA
| | - Stephan Q Schneider
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Julie A Kuhlman
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA, 50011, USA. .,642 Science II, Iowa State University, Ames, IA, 50011, USA.
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Prospect of Human Pluripotent Stem Cell-Derived Neural Crest Stem Cells in Clinical Application. Stem Cells Int 2016; 2016:7695836. [PMID: 28090209 PMCID: PMC5206454 DOI: 10.1155/2016/7695836] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/21/2016] [Accepted: 06/20/2016] [Indexed: 12/13/2022] Open
Abstract
Neural crest stem cells (NCSCs) represent a transient and multipotent cell population that contributes to numerous anatomical structures such as peripheral nervous system, teeth, and cornea. NCSC maldevelopment is related to various human diseases including pigmentation abnormalities, disorders affecting autonomic nervous system, and malformations of teeth, eyes, and hearts. As human pluripotent stem cells including human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs) can serve as an unlimited cell source to generate NCSCs, hESC/hiPSC-derived NCSCs can be a valuable tool to study the underlying mechanisms of NCSC-associated diseases, which paves the way for future therapies for these abnormalities. In addition, hESC/hiPSC-derived NCSCs with the capability of differentiating to various cell types are highly promising for clinical organ repair and regeneration. In this review, we first discuss NCSC generation methods from human pluripotent stem cells and differentiation mechanism of NCSCs. Then we focus on the clinical application potential of hESC/hiPSC-derived NCSCs on peripheral nerve injuries, corneal blindness, tooth regeneration, pathological melanogenesis, Hirschsprung disease, and cardiac repair and regeneration.
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Dos Santos-Júnior EF, Gonçalves-Pimentel C, de Araújo LCC, da Silva TG, de Melo-Júnior MR, Moura-Neto V, Andrade-da-Costa BLDS. Malnutrition increases NO production and induces changes in inflammatory and oxidative status in the distal colon of lactating rats. Neurogastroenterol Motil 2016; 28:1204-16. [PMID: 26951039 DOI: 10.1111/nmo.12820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 02/11/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Epidemiological studies have indicated the lack of breast feeding as a risk factor associated with later development of inflammatory bowel disease. Nevertheless, the repercussion of little feeding during suckling on large intestine inflammatory response and anti-oxidant resources has not yet been completely understood. This study hypothesized that unfavorable lactation is able to induce oxidative stress and release of inflammatory mediators modifying the integrity of the colon epithelium in weanling rats. METHODS Wistar rats were reared under different early nutritional conditions according to litter size in two groups: N6 (6 pups/dam) and N15 (15 pups/dam) until the 25th postnatal day. The distal colon was removed and processed for biochemical, morphometric, and immunohistochemical analyzes. Lipoperoxidation, nitric oxide (NO), reduced (GSH) and oxidized (GSSG) glutathione, tumor necrosis factor-alpha (TNF-α), interleukins-1β, 4 and 10 (IL-1β; IL-4; IL-10) levels, and total superoxide dismutase (tSOD), and catalase (CAT) activities were assessed. Morphometric analysis was carried out using paraffin sections and wholemount myenteric plexus preparations. KEY RESULTS Increased lipoperoxidation, NO, TNF-α and IL-1b levels, reduced tSOD and increased CAT activities were found in the N15 compared to N6 group. No intergroup difference was detected for IL-10, while lower levels of IL-4, GSH and GSSG and lower neuronal size and density were induced by undernutrition. CONCLUSIONS & INFERENCES Reduced feeding during suckling changed the inflammatory response and oxidative status in the colon of weanling rats. These data suggest potential mechanisms by which malnutrition early in life may increase the vulnerability of the large intestine to insults.
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Affiliation(s)
- E F Dos Santos-Júnior
- Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - C Gonçalves-Pimentel
- Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - L C C de Araújo
- Departamento de Antibióticos, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - T G da Silva
- Departamento de Antibióticos, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - M R de Melo-Júnior
- Departamento de Patologia e Laboratório de Imunopatologia Keizo Asami, LIKA, Universidade Federal de Pernambuco, Recife, Brazil
| | - V Moura-Neto
- Instituto Estadual do Cérebro Paulo Niemeyer, Centro de Estudo e Pesquisa, Rio de Janeiro, RJ, Brazil
| | - B L D S Andrade-da-Costa
- Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
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Stathopoulou A, Natarajan D, Nikolopoulou P, Patmanidi AL, Lygerou Z, Pachnis V, Taraviras S. Inactivation of Geminin in neural crest cells affects the generation and maintenance of enteric progenitor cells, leading to enteric aganglionosis. Dev Biol 2015; 409:392-405. [PMID: 26658318 DOI: 10.1016/j.ydbio.2015.11.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 11/27/2015] [Accepted: 11/27/2015] [Indexed: 11/25/2022]
Abstract
Neural crest cells comprise a multipotent, migratory cell population that generates a diverse array of cell and tissue types, during vertebrate development. Enteric Nervous System controls the function of the gastrointestinal tract and is mainly derived from the vagal and sacral neural crest cells. Deregulation on self-renewal and differentiation of the enteric neural crest cells is evident in enteric nervous system disorders, such as Hirschsprung disease, characterized by the absence of ganglia in a variable length of the distal bowel. Here we show that Geminin is essential for Enteric Nervous System generation as mice that lacked Geminin expression specifically in neural crest cells revealed decreased generation of vagal neural crest cells, and enteric neural crest cells (ENCCs). Geminin-deficient ENCCs showed increased apoptosis and decreased cell proliferation during the early stages of gut colonization. Furthermore, decreased number of committed ENCCs in vivo and the decreased self-renewal capacity of enteric progenitor cells in vitro, resulted in almost total aganglionosis resembling a severe case of Hirschsprung disease. Our results suggest that Geminin is an important regulator of self-renewal and survival of enteric nervous system progenitor cells.
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Affiliation(s)
| | - Dipa Natarajan
- Division of Molecular Neurobiology, MRC/National Institute for Medical Research, London, United Kingdom
| | | | | | - Zoi Lygerou
- Department of Biology, Medical School, University of Patras, Patras, Greece
| | - Vassilis Pachnis
- Division of Molecular Neurobiology, MRC/National Institute for Medical Research, London, United Kingdom
| | - Stavros Taraviras
- Department of Physiology, Medical School, University of Patras, Patras, Greece.
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Arab HA, Muhammadnejad S, Faghihi SM, Hassanpour H, Muhammadnejad A. Effects of nitric oxide modulating activities on development of enteric nervous system mediated gut motility in chick embryo model. J Biosci 2015; 39:835-48. [PMID: 25431412 DOI: 10.1007/s12038-014-9474-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The enteric nervous system (ENS) arises from the enteric neural crest-derived cells (ENCCs), and many molecules and biochemical processes may be involved in its development. This study examined the effects of modulating embryonic nitric oxide (NO) activity on the intestinal motility induced by ENS. One-hundred-and-twenty fertilized chicken eggs were assigned to three main groups and incubated at 37 degrees Centigrade and 60 percent humidity. The eggs were treated with NG-nitro-Larginine methyl ester (L-NAME), sodium nitroprusside (SNP), L-arginine (L-Arg) or vehicle from days 3 (1st group), 7 (2nd group) and 10 (3rd group) of incubation and continued up to day 18. On day 19, the embryos were sacrificed, the jejunal and colorectal segments were taken and the intestinal motility was assessed using isolated organ system. The intestinal motility was recorded normally and following cholinergic, adrenergic and non-adrenergic non-cholinergic (NANC) stimulations. The ENS structure was assessed by immunohistochemistry (IHC) using glial fibrillary acidic protein (GFAP). Rhythmic intestinal contractions were seen in all treatment groups, but inhibition of NO in the LNAME- treated embryos caused significant decrease (p less than 0.01) in the frequency and amplitude of the contraction. The responsiveness to adrenergic, cholinergic and NANC stimulations was also significantly decreased (p less than 0.05). The GFAP expression was significantly (p less than 0.05) reduced in the L-NAME-treated embryos. This study showed that the inhibition of NO caused a deficient development of the ENS, leading to a decrease in the frequency and amplitude of the intestinal contractions and reduced the responsiveness to adrenergic, cholinergic and NANC signalling.
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Affiliation(s)
- Hossein-Ali Arab
- Department of Pharmacology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran,
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Abstract
BACKGROUND Association between Joubert Syndrome and Hirschsprung disease is rare. CASE CHARACTERISTICS A 9-month-old girl having developmental delay and chronic constipation. OBSERVATION Molar tooth sign on MRI brain and absence of ganglion cells in rectal biopsy specimen. OUTCOME Child underwent surgical repair for Hirschsprung disease. MESSAGE Association of these two rare entities could be explained by ciliopathy.
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Using Pluripotent Stem Cells and Their Progeny as an In VitroModel to Assess (Developmental) Neurotoxicity. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2014. [DOI: 10.1002/9783527674183.ch13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Tuo G, Pini Prato A, Derchi M, Mosconi M, Mattioli G, Marasini M. Hirschsprung's Disease and Associated Congenital Heart Defects: A Prospective Observational Study from a Single Institution. Front Pediatr 2014; 2:99. [PMID: 25279367 PMCID: PMC4166232 DOI: 10.3389/fped.2014.00099] [Citation(s) in RCA: 10] [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: 07/02/2014] [Accepted: 09/01/2014] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To define the prevalence and characteristics of associated congenital heart diseases (CHDs) in patients with Hirschsprung's disease (HSCR). METHOD All patients with a histological diagnosis of HSCR admitted to our hospital between January 2010 and December 2013 were included in this prospective observational study and underwent cardiovascular screening. Cardiac anatomy was assessed by a segmental echocardiographic approach. Measurements of aortic root and left ventricular dimensions, wall thickness, and function were obtained. CHDs requiring a percutaneous or surgical intervention were described as major heart diseases. RESULTS One hundred thirty-three consecutive patients were enrolled at median age of 2.3 years. Eleven patients (8.3%) presented an associated heart disease. Moreover, five patients had mild dilatation of aortic root. Six out of 11 (4.5%) patients had a major CHDs requiring surgical repair. CONCLUSION Prevalence of associated CHDs was slightly higher than in previous papers, and mostly represented by septal defects. Four out of six patients with major heart disease had also a chromosomal anomaly. If we do not consider the subpopulation of patients with a chromosomal anomaly, cardiac defects were present in 3.8% of the patients. Based on these results, we suggest to perform routine echocardiogram in all Hirschsprung patients, with or without associated chromosomal syndromes.
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Affiliation(s)
- Giulia Tuo
- Department of Pediatric Cardiology, Istituto Giannina Gaslini, Genoa, Italy
| | - Alessio Pini Prato
- Department of Pediatric Surgery, Istituto Giannina Gaslini, Genoa, Italy
| | - Maria Derchi
- Department of Pediatric Cardiology, Istituto Giannina Gaslini, Genoa, Italy
| | - Manuela Mosconi
- Department of Pediatric Surgery, Istituto Giannina Gaslini, Genoa, Italy
| | - Girolamo Mattioli
- Department of Pediatric Surgery, Istituto Giannina Gaslini, Genoa, Italy
- Department of Neuroscience, Ophthalmology, Rehabilitation, Genetics and Maternal-Infant Science (DINOGMI), University of Genoa, Genoa, Italy
| | - Maurizio Marasini
- Department of Pediatric Cardiology, Istituto Giannina Gaslini, Genoa, Italy
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Suzuki R, Miyahara K, Murakami H, Doi T, Lane GJ, Mabuchi Y, Suzuki N, Yamataka A, Akazawa C. Abnormal neural crest innervation in Sox10-Venus mice with all-trans retinoic acid-induced anorectal malformations. Pediatr Surg Int 2014; 30:189-95. [PMID: 24352371 DOI: 10.1007/s00383-013-3452-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND/PURPOSE Despite technical advances in the surgical/medical care of anorectal malformation (ARM), persistent unsatisfactory postoperative bowel habit has been attributed to histopathologic abnormalities of the distal rectum/pouch (DRP) and hypoplasia of anal sphincter muscles (ASM). We used Sox10-Venus mice with ARM induced by all-trans retinoic acid (ATRA) to investigate neural crest cell (NCC) innervation in the DRP and ASM. METHOD Pregnant Sox10-Venus mice were administered single doses of 50, 70, or 100 mg/kg of ATRA on embryonic day 8.5 (E8.5) then sacrificed on either E16.5 or E19.5. Bowel specimens comprising the anorectum were examined using fluorescence microscopy without immunohistochemical staining (FMIS). Anti-PGP9.5 was used to delineate ganglion cells and anti-SMA for smooth muscles. RESULTS The appropriate dose of ATRA for inducing ARM was 50 mg/kg. Under FMIS, all ARM embryos (n = 5; all high type; 3 male:2 female) had less NCC innervation with thick Venus-positive nerve fibers in the DRP compared with normal embryos (n = 8); there was abnormal NCC innervation in the DRP and absent ASM in ARM mice. CONCLUSION We are the first to delineate abnormal enteric nervous system innervation in the DRP of ARM mice without using immunohistochemical staining techniques thus allowing specimens to be examined without any distortion.
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Affiliation(s)
- Ryota Suzuki
- Department of Biochemistry and Biophysics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8510, Tokyo, Japan
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Butler Tjaden NE, Trainor PA. The developmental etiology and pathogenesis of Hirschsprung disease. Transl Res 2013; 162:1-15. [PMID: 23528997 PMCID: PMC3691347 DOI: 10.1016/j.trsl.2013.03.001] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/25/2013] [Accepted: 03/01/2013] [Indexed: 02/08/2023]
Abstract
The enteric nervous system is the part of the autonomic nervous system that directly controls the gastrointestinal tract. Derived from a multipotent, migratory cell population called the neural crest, a complete enteric nervous system is necessary for proper gut function. Disorders that arise as a consequence of defective neural crest cell development are termed neurocristopathies. One such disorder is Hirschsprung disease (HSCR), also known as congenital megacolon or intestinal aganglionosis. HSCR occurs in 1/5000 live births and typically presents with the inability to pass meconium, along with abdominal distension and discomfort that usually requires surgical resection of the aganglionic bowel. This disorder is characterized by a congenital absence of neurons in a portion of the intestinal tract, usually the distal colon, because of a disruption of normal neural crest cell migration, proliferation, differentiation, survival, and/or apoptosis. The inheritance of HSCR disease is complex, often non-Mendelian, and characterized by variable penetrance. Extensive research has identified a number of key genes that regulate neural crest cell development in the pathogenesis of HSCR including RET, GDNF, GFRα1, NRTN, EDNRB, ET3, ZFHX1B, PHOX2b, SOX10, and SHH. However, mutations in these genes account for only ∼50% of the known cases of HSCR. Thus, other genetic mutations and combinations of genetic mutations and modifiers likely contribute to the etiology and pathogenesis of HSCR. The aims of this review are to summarize the HSCR phenotype, diagnosis, and treatment options; to discuss the major genetic causes and the mechanisms by which they disrupt normal enteric neural crest cell development; and to explore new pathways that may contribute to HSCR pathogenesis.
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Ding X, Zhao Z, Duan W, Wang S, Jin X, Xiang L, Jin X. Expression patterns of CXCR4 in different colon tissue segments of patients with Hirschsprung's disease. Exp Mol Pathol 2013; 95:111-6. [PMID: 23769877 DOI: 10.1016/j.yexmp.2013.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 06/06/2013] [Accepted: 06/06/2013] [Indexed: 01/07/2023]
Abstract
C-X-C chemokine receptor type 4 (CXCR4) plays a crucial role in a wide range of physiological and pathological processes, including the migration of stem cells, such as neural crest-derived cells. Hirschsprung's disease (HSCR), a developmental disorder characterized by the absence of ganglion cells, is regarded as the consequence of the premature arrest of the craniocaudal migration of neural crest-derived cells (NCDCs) in the gastrointestinal tract during the development of the enteric nervous system (ENS). In this study, colon tissue samples from 61 HSCR patients were surgically collected and divided into aganglionic, oligoganglionic and normal ganglionic segments. Quantitative real-time polymerase chain reactions (PCR), Western blotting, and immunohistochemical and immunofluorescence staining were performed to analyze the expression levels and patterns of CXCR4 in different colon tissue segments. The expression levels of CXCR4 mRNA and protein in the aganglionic segments were decreased compared to the normal ganglionic and oligoganglionic colon segments (p<0.01). Immunohistochemical staining showed that intensive CXCR4 staining was detected in the ganglion cells and the supporting glial cells in the ganglion in control colon specimens and normal ganglionic and oligoganglionic colon segments from the HSCR patients; however, CXCR4 staining was significantly decreased in the aganglionic colon segments. Immunofluorescence staining showed that CXCR4 staining was mainly detected in the ganglia where RET-positive ganglion cells were observed. Elucidating CXCR4 expression patterns in colon segments could be the basis for further investigations of the potential role of CXCR4 in ENS development.
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Affiliation(s)
- Xionghui Ding
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China.
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Anorectal neural crest derived cell behavior after the migration of vagal neural crest derived cells is surgically disrupted: implications for the etiology of Hirschsprung's disease. Pediatr Surg Int 2013; 29:9-12. [PMID: 23143079 DOI: 10.1007/s00383-012-3201-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND/PURPOSE In Hirschsprung's disease (HD), thick extrinsic nerve fibers can be associated with the aganglionic segment in the anorectum. We surgically disrupted the migration of vagal neural crest cell-derived cells (vagal NCC) in embryos from transgenic mice we created previously (SOX10-VENUS Tg) which have the SOX10 gene labeled with Venus (V), a green fluorescent protein, to observe sacral NCC activity in the anorectum. METHOD Proximal colon harvested from SOX10-VENUS Tg embryos on day 10.5 (n = 10) was transected at the ascending colon. V-positive sacral NCC in the anorectum were observed during organ culture under fluorescence stereoscopic microscopy, and compared with non-transected control specimens (n = 10). RESULTS In transected specimens, no V-positive sacral NCC were identified initially in the anorectum. By day 2, there were thick beaded sacral NCC in the anorectum in 6/10 (60 %) that migrated steadily to the transected end over 3-4 days. In controls, thinner and shorter V-positive sacral NCC began migrating cranially on day 2, and were met by distally migrating vagal NCC. CONCLUSION Disruption of vagal NCC migration appears to induce sacral NCC activity in the anorectum, suggesting that thick extrinsic nerve fibers seen in HD may be a secondary phenomenon.
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Biau S, Jin S, Fan CM. Gastrointestinal defects of the Gas1 mutant involve dysregulated Hedgehog and Ret signaling. Biol Open 2012; 2:144-55. [PMID: 23429478 PMCID: PMC3575649 DOI: 10.1242/bio.20123186] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 10/02/2012] [Indexed: 12/18/2022] Open
Abstract
The gastrointestinal (GI) tract defines the digestive system and is composed of the stomach, intestine and colon. Among the major cell types lining radially along the GI tract are the epithelium, mucosa, smooth muscles and enteric neurons. The Hedgehog (Hh) pathway has been implicated in directing various aspects of the developing GI tract, notably the mucosa and smooth muscle growth, and enteric neuron patterning, while the Ret signaling pathway is selectively required for enteric neuron migration, proliferation, and differentiation. The growth arrest specific gene 1 (Gas1) encodes a GPI-anchored membrane protein known to bind to Sonic Hh (Shh), Indian Hh (Ihh), and Ret. However, its role in the GI tract has not been examined. Here we show that the Gas1 mutant GI tract, compared to the control, is shorter, has thinner smooth muscles, and contains more enteric progenitors that are abnormally distributed. These phenotypes are similar to those of the Shh mutant, supporting that Gas1 mediates most of the Shh activity in the GI tract. Because Gas1 has been shown to inhibit Ret signaling elicited by Glial cell line-derived neurotrophic factor (Gdnf), we explored whether Gas1 mutant enteric neurons displayed any alteration of Ret signaling levels. Indeed, isolated mutant enteric progenitors not only showed increased levels of phospho-Ret and its downstream effectors, phospho-Akt and phospho-Erk, but also displayed altered responses to Gdnf and Shh. We therefore conclude that phenotypes observed in the Gas1 mutant are due to a combination of reduced Hh signaling and increased Ret signaling.
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Affiliation(s)
- Sandrine Biau
- Department of Embryology, Carnegie Institution of Washington , 3520 San Martin Drive, Baltimore, Maryland 21218 , USA ; 2iE Foundation, International Institute for Water and Environmental Engineering , Rue de la Science, 01 BP 594, Ouagadougou 01 , Burkina Faso
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18
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Jacobs IJ, Ku WY, Que J. Genetic and cellular mechanisms regulating anterior foregut and esophageal development. Dev Biol 2012; 369:54-64. [PMID: 22750256 DOI: 10.1016/j.ydbio.2012.06.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Revised: 06/07/2012] [Accepted: 06/20/2012] [Indexed: 12/22/2022]
Abstract
Separation of the single anterior foregut tube into the esophagus and trachea involves cell proliferation and differentiation, as well as dynamic changes in cell-cell adhesion and migration. These biological processes are regulated and coordinated at multiple levels through the interplay of the epithelium and mesenchyme. Genetic studies and in vitro modeling have shed light on relevant regulatory networks that include a number of transcription factors and signaling pathways. These signaling molecules exhibit unique expression patterns and play specific functions in their respective territories before the separation process occurs. Disruption of regulatory networks inevitably leads to defective separation and malformation of the trachea and esophagus and results in the formation of a relatively common birth defect, esophageal atresia with or without tracheoesophageal fistula (EA/TEF). Significantly, some of the signaling pathways and transcription factors involved in anterior foregut separation continue to play important roles in the morphogenesis of the individual organs. In this review, we will focus on new findings related to these different developmental processes and discuss them in the context of developmental disorders or birth defects commonly seen in clinics.
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Affiliation(s)
- Ian J Jacobs
- Department of Biology, University of Rochester, Rochester, NY 14642, USA
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Bagyánszki M, Bódi N. Diabetes-related alterations in the enteric nervous system and its microenvironment. World J Diabetes 2012; 3:80-93. [PMID: 22645637 PMCID: PMC3360223 DOI: 10.4239/wjd.v3.i5.80] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 04/06/2012] [Accepted: 05/11/2012] [Indexed: 02/05/2023] Open
Abstract
Gastric intestinal symptoms common among diabetic patients are often caused by intestinal motility abnormalities related to enteric neuropathy. It has recently been demonstrated that the nitrergic subpopulation of myenteric neurons are especially susceptible to the development of diabetic neuropathy. Additionally, different susceptibility of nitrergic neurons located in different intestinal segments to diabetic damage and their different levels of responsiveness to insulin treatment have been revealed. These findings indicate the importance of the neuronal microenvironment in the pathogenesis of diabetic nitrergic neuropathy. The main focus of this review therefore was to summarize recent advances related to the diabetes-related selective nitrergic neuropathy and associated motility disturbances. Special attention was given to the findings on capillary endothelium and enteric glial cells. Growing evidence indicates that capillary endothelium adjacent to the myenteric ganglia and enteric glial cells surrounding them are determinative in establishing the ganglionic microenvironment. Additionally, recent advances in the development of new strategies to improve glycemic control in type 1 and type 2 diabetes mellitus are also considered in this review. Finally, looking to the future, the recent and promising results of metagenomics for the characterization of the gut microbiome in health and disease such as diabetes are highlighted.
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Affiliation(s)
- Mária Bagyánszki
- Mária Bagyánszki, Nikolett Bódi, Department of Physiology, Anatomy and Neuroscience, Faculty of Science, University of Szeged, H-6726 Szeged, Hungary
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Abnormal enteric innervation identified without histopathologic staining in aganglionic colorectum from a mouse model of Hirschsprung's disease. J Pediatr Surg 2010; 45:2403-7. [PMID: 21129555 DOI: 10.1016/j.jpedsurg.2010.08.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 08/12/2010] [Indexed: 12/21/2022]
Abstract
PURPOSE The piebald lethal mouse with a deletion of endothelin-B receptor gene (EDNRB) is a model for Hirschsprung's disease (HD), whereas the SOX10 gene is vital for the development of intestinal neural crest-derived cells. Recently, we created a SOX10 transgenic mouse with intestinal neural crest-derived cells visible with enhanced green fluorescent protein (VENUS), that is, SOX10-VENUS(+)/EDNRB(sl/sl) to investigate intestinal innervation in HD. METHODS SOX10-VENUS(+)/EDNRB(sl/sl) (n = 30) were compared with wild-type littermates as controls (EDNRB(s/s), n = 30). Mice were killed on days 3, 7, or 12 of age. The entire colorectum was excised, fixed with 4% paraformaldehyde, and examined using fluorescence microscopy alone without staining. RESULTS In normoganglionic colorectum from controls, a grid network of nerve fibers/glial cells was visualized that connected smoothly with extrinsic nerve fibers running along the colorectal wall. In aganglionic colorectum from SOX10-VENUS(+)/EDNRB(sl/sl) mice, there was no grid network and more extrinsic nerve fibers than controls that invaded the colon wall becoming elongated with branching fibers. Normoganglionic colon from controls and SOX10-VENUS(+)/EDNRB(sl/sl) mice appeared the same. Innervation patterns did not change over time. CONCLUSION This is the first time for abnormal enteric innervation in aganglionic colon in a model for HD to be visualized without staining.
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Miyahara K, Kato Y, Seki T, Arakawa A, Lane GJ, Yamataka A. Neuronal immaturity in normoganglionic colon from cases of Hirschsprung disease, anorectal malformation, and idiopathic constipation. J Pediatr Surg 2009; 44:2364-8. [PMID: 20006028 DOI: 10.1016/j.jpedsurg.2009.07.066] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Accepted: 07/31/2009] [Indexed: 12/31/2022]
Abstract
AIM Immaturity of neurons in normoganglionic colon in Hirschsprung disease (HD), anorectal malformation (AM), idiopathic constipation (IC), and normal controls (C) was assessed using polysialyated neural cell adhesion molecule. METHODS Polysialyated neural cell adhesion molecule immunoreactivity in 3 sections of normoganglionic colon from HD (n = 48), AM (n = 25), IC (n = 36), and C (n = 18) were scored semiquantitatively according to age; 1 day to 11 months (G1), 1 to 4 years (G2), and 5 years and older (G3). RESULTS Neurons in all specimens appeared mature irrespective of age on hematoxylin-eosin stain. Polysialyated neural cell adhesion molecule was positive (immaturity) in all specimens during G1 (1.34 in HD, 1.60 in AM, 0.89 in IC, and 1.59 in C) and decreased significantly with age in C (0.34* for G2, 0.25* for G3; *P < .01), decreased after 4 years old in IC (0.93 for G2, 0.10(#) for G3; (#)P < .05), decreased gradually in AM (1.10 for G2, 0.75( section sign) for G3; ( section sign)P < .05), but remained strongly positive in HD (1.34 for G1, 1.26 for G2, and 1.21 for G3; P = not significant), which after 4 years was significantly higher than C (P < .05). CONCLUSION Postoperative colonic dysmotility may be because of persistence of immature neurons in HD and impaired maturation of neurons in AM and IC.
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Affiliation(s)
- Katsumi Miyahara
- Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, Tokyo 113-8421, Japan.
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22
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Liu CP, Li XG, Lou JT, Xue Y, Luo CF, Zhou XW, Chen F, Li X, Li M, Li JC. Association analysis of the PHOX2B gene with Hirschsprung disease in the Han Chinese population of Southeastern China. J Pediatr Surg 2009; 44:1805-11. [PMID: 19735829 DOI: 10.1016/j.jpedsurg.2008.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Revised: 12/05/2008] [Accepted: 12/05/2008] [Indexed: 11/28/2022]
Abstract
BACKGROUND Hirschsprung disease (HSCR, OMIM 142623) is a complex congenital disorder characterized by intestinal obstructions caused by the absence of the intestinal ganglion cells of the nerve plexuses in variable lengths of the digestive tract. The PHOX2B gene is involved in neurogenesis and disruption of Phox2b in mice results in a HSCR-like phenotype. The first association study of the PHOX2B gene with HSCR derived from Chinese population in Hong Kong; here, we address the question of whether PHOX2B acts as a predisposing factor in HSCR pathogenesis in Chinese population in mainland. METHODS To investigate the contribution of PHOX2B to the HSCR phenotype, polymerase chain reaction amplification and direct sequencing were used to screen PHOX2B coding regions and intron/exon boundaries for mutations and polymorphisms in 102 patients with HSCR and 96 ethnically matched controls, in Han Chinese populations of Southeastern China. RESULTS In this study, we genotyped 4 single nucleotide polymorphisms (SNPs) (including 1 novel SNP) located within the PHOX2B gene. Statistically significant differences were found for c.701 A > G and IVS2 + 100 A > G, and the log-additive model was accepted as the best inheritance model (odds ratio [OR], 1.79; 95% confidence interval [CI], 1.11-2.87) for IVS2 + 100 A > G. We also showed that the haplotype-A G A N composed of 4 SNPs exhibited significant association with the disease (P = .03); this haplotype was more frequently observed in cases than in controls (OR, 2.31; 95% CI, 1.11-4.82). CONCLUSIONS Our study provided further evidence that the PHOX2B gene is involved in the susceptibility to HSCR in the Han Chinese population. Our findings are in accordance with the involvement of PHOX2B in the signaling pathways governing the development of enteric neurons.
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Affiliation(s)
- Cui-Ping Liu
- Institute of Cell Biology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
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23
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Abstract
The avian embryo has been an important model system for studying enteric nervous system (ENS) development for over 50 y. Since the initial demonstration in chick embryos that the ENS is derived from the neural crest, investigators have used the avian model to reveal the cellular origins and migratory pathways of enteric neural crest-derived cells, with more recent work focusing on the molecular mechanisms regulating ENS development. Seminal contributions have been made in this field by researchers who have taken advantage of the strengths of the avian model system. These strengths include in vivo accessibility throughout development, ability to generate quail-chick chimeras, and the capacity to modulate gene expression in vivo in a spatially and temporally targeted manner. The recent availability of the chicken genome further enhances this model system, allowing investigators to combine classic embryologic methods with current genetic techniques. The strengths and versatility of the avian embryo continue to make it a valuable experimental system for studying the development of the ENS.
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Affiliation(s)
- Allan M Goldstein
- Department of Pediatric Surgery and the Pediatric Intestinal Rehabilitation Program, Harvard Medical School, Boston, Massachusetts 02114, USA.
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24
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Landman KA, Simpson MJ, Newgreen DF. Mathematical and experimental insights into the development of the enteric nervous system and Hirschsprung's disease. Dev Growth Differ 2007; 49:277-86. [PMID: 17501905 DOI: 10.1111/j.1440-169x.2007.00929.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The vertebrate enteric nervous system is formed by a rostro-caudally directed invasion of the embryonic gastrointestinal mesenchyme by neural crest cells. Failure to complete this invasion results in the distal intestine lacking intrinsic neurons. This potentially fatal condition is called Hirschsprung's Disease. A mathematical model of cell invasion incorporating cell motility and proliferation of neural crest cells to a carrying capacity predicted invasion outcomes to imagined manipulations, and these manipulations were tested experimentally. Mathematical and experimental results agreed. The results show that the directional invasion is chiefly driven by neural crest cell proliferation. Moreover, this proliferation occurs in a small region at the wavefront of the invading population. These results provide an understanding of why many genes implicated in Hirschsprung's Disease influence neural crest population size. In addition, during in vivo development the underlying gut tissues are growing simultaneously as the neural crest cell invasion proceeds. The interactions between proliferation, motility and gut growth dictate whether or not complete colonization is successful. Mathematical modeling provides insights into the conditions required for complete colonization or a Hirschsprung's-like deficiency. Experimental evidence supports the hypotheses suggested by the modeling.
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Affiliation(s)
- Kerry A Landman
- Department of Mathematics and Statistics, The University of Melbourne, Parkville, Victoria 3052, Australia
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25
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Anderson RB, Newgreen DF, Young HM. Neural crest and the development of the enteric nervous system. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 589:181-96. [PMID: 17076282 DOI: 10.1007/978-0-387-46954-6_11] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The formation of the enteric nervous system (ENS) is a particularly interesting example of the migratory ability of the neural crest and of the complexity of structures to which neural crest cells contribute. The distance that neural crest cells migrate to colonize the entire length of the gastrointestinal tract exceeds that of any other neural crest cell population. Furthermore, this migration takes a long time--over 25% of the gestation period for mice and around 3 weeks in humans. After colonizing the gut, neural crest-derived cells within the gut wall then differentiate into glial cells plus many different types of neurons, and generate the most complex part of the peripheral nervous system.
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Affiliation(s)
- Richard B Anderson
- Department of Anatomy and Cell Biology, University of Melbourne, 3010, VIC, Australia
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26
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Sommer L. Growth factors regulating neural crest cell fate decisions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 589:197-205. [PMID: 17076283 DOI: 10.1007/978-0-387-46954-6_12] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Because of its unique ability to generate a wide variety of both neural and nonneural derivatives, the neural crest is an ideal model system to study the factors regulating cell lineage decisions in stem and progenitor cells. The use of various cell culture techniques and in vivo functional assays, including cell type-specific gene manipulation in mouse, helped to identify signaling factors involved in this process. Moreover, it became apparent that the biological functions of growth factors acting on neural crest cells depend on the context provided by the extracellular microenvironment. Thus, signaling molecules have to be viewed as parts of complex networks that change with time and location. Neural crest cells have to integrate these signals to ensure the generation of appropriate numbers of differentiating progeny. It will be important to determine how such signaling networks are established and how they elicit multiple signaling responses in neural crest cells to activate appropriate genetic programs.
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Affiliation(s)
- Lukas Sommer
- Institute of Cell Biology, Swiss Federal Institute of Technology, ETH-Hoenggerberg, Zürich, Switzerland.
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de Lorijn F, Boeckxstaens GE, Benninga MA. Symptomatology, pathophysiology, diagnostic work-up, and treatment of Hirschsprung disease in infancy and childhood. Curr Gastroenterol Rep 2007; 9:245-53. [PMID: 17511924 DOI: 10.1007/s11894-007-0026-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In the majority of infants and children with constipation, no obvious cause can be identified. A rare cause of constipation is Hirschsprung disease (HD). HD is characterized by the absence of ganglion cells from the anorectum for a variable length up to the duodenum. The extent of the aganglionic segment varies, but in most patients the lesion does not extend beyond the rectum and sigmoid colon. This review focuses on the passage of meconium, the recognition of HD, and new insights in its pathophysiology and genetics. The authors also provide a summary of the diagnostic evaluation and treatment of HD in infancy and childhood.
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Affiliation(s)
- Fleur de Lorijn
- Gastroenterology and Nutrition, Emma Children's Hospital AMC / Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
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28
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Abstract
ENS consists of a complex network of neurons, organised in several plexuses, which interact by means of numerous neurotransmitters. It is capable of modulating the intestinal motility, exocrine and endocrine secretions, microcirculation and immune and inflammatory responses within the gastrointestinal tract, independent of the central nervous system. Though the embryological development of various plexuses are completed by mid-way of gestation, the maturation of neurons and nerve plexuses appear to continue well after birth. Therefore, any histological or functional abnormalities related to the gastrointestinal function must be investigated with the ongoing maturational processes in mind.
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Affiliation(s)
- Thambipillai Sri Paran
- Children's Research Centre, Our Lady's Children's Hospital, University College Dublin, Crumlin, Dublin 12, Ireland
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29
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Simpson MJ, Zhang DC, Mariani M, Landman KA, Newgreen DF. Cell proliferation drives neural crest cell invasion of the intestine. Dev Biol 2006; 302:553-68. [PMID: 17178116 DOI: 10.1016/j.ydbio.2006.10.017] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2006] [Revised: 09/12/2006] [Accepted: 10/09/2006] [Indexed: 10/24/2022]
Abstract
A general mathematical model of cell invasion is developed and validated with an experimental system. The model incorporates two basic cell functions: non-directed (diffusive) motility and proliferation to a carrying capacity limit. The model is used here to investigate cell proliferation and motility differences along the axis of an invasion wave. Mathematical simulations yield surprising and counterintuitive predictions. In this general scenario, cells at the invasive front are proliferative and migrate into previously unoccupied tissues while those behind the front are essentially nonproliferative and do not directly migrate into unoccupied tissues. These differences are not innate to the cells, but are a function of proximity to uninvaded tissue. Therefore, proliferation at the invading front is the critical mechanism driving apparently directed invasion. An appropriate system to experimentally validate these predictions is the directional invasion and colonization of the gut by vagal neural crest cells that establish the enteric nervous system. An assay using gut organ culture with chick-quail grafting is used for this purpose. The experimental results are entirely concordant with the mathematical predictions. We conclude that proliferation at the wavefront is a key mechanism driving the invasive process. This has important implications not just for the neural crest, but for other invasion systems such as epidermal wound healing, carcinoma invasion and other developmental cell migrations.
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Affiliation(s)
- Matthew J Simpson
- Department of Mathematics and Statistics, University of Melbourne, and The Murdoch Childrens Research Institute, Victoria 3010, Australia.
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Vohra BP, Tsuji K, Nagashimada M, Uesaka T, Wind D, Armon J, Enomoto H, Heuckeroth RO. Differential gene expression and functional analysis implicate novel mechanisms in enteric nervous system precursor migration and neuritogenesis. Dev Biol 2006; 298:259-71. [PMID: 16904662 PMCID: PMC1952185 DOI: 10.1016/j.ydbio.2006.06.033] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2006] [Revised: 05/17/2006] [Accepted: 06/22/2006] [Indexed: 10/24/2022]
Abstract
Enteric nervous system (ENS) development requires complex interactions between migrating neural-crest-derived cells and the intestinal microenvironment. Although some molecules influencing ENS development are known, many aspects remain poorly understood. To identify additional molecules critical for ENS development, we used DNA microarray, quantitative real-time PCR and in situ hybridization to compare gene expression in E14 and P0 aganglionic or wild type mouse intestine. Eighty-three genes were identified with at least two-fold higher expression in wild type than aganglionic bowel. ENS expression was verified for 39 of 42 selected genes by in situ hybridization. Additionally, nine identified genes had higher levels in aganglionic bowel than in WT animals suggesting that intestinal innervation may influence gene expression in adjacent cells. Strikingly, many synaptic function genes were expressed at E14, a time when the ENS is not needed for survival. To test for developmental roles for these genes, we used pharmacologic inhibitors of Snap25 or vesicle-associated membrane protein (VAMP)/synaptobrevin and found reduced neural-crest-derived cell migration and decreased neurite extension from ENS precursors. These results provide an extensive set of ENS biomarkers, demonstrate a role for SNARE proteins in ENS development and highlight additional candidate genes that could modify Hirschsprung's disease penetrance.
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Affiliation(s)
- Bhupinder P.S. Vohra
- Department of Pediatrics and Department of Molecular Biology and Pharmacology, Washington University School of Medicine, 660 S. Euclid Avenue, Box 8208, St. Louis, MO 63110 U.S.A
| | - Keiji Tsuji
- Laboratory for Neuronal Differentiation and Regeneration, RIKEN Center for Developmental Biology, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Mayumi Nagashimada
- Laboratory for Neuronal Differentiation and Regeneration, RIKEN Center for Developmental Biology, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Toshihiro Uesaka
- Laboratory for Neuronal Differentiation and Regeneration, RIKEN Center for Developmental Biology, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Daniel Wind
- Department of Pediatrics and Department of Molecular Biology and Pharmacology, Washington University School of Medicine, 660 S. Euclid Avenue, Box 8208, St. Louis, MO 63110 U.S.A
| | - Jennifer Armon
- Department of Pediatrics and Department of Molecular Biology and Pharmacology, Washington University School of Medicine, 660 S. Euclid Avenue, Box 8208, St. Louis, MO 63110 U.S.A
| | - Hideki Enomoto
- Laboratory for Neuronal Differentiation and Regeneration, RIKEN Center for Developmental Biology, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Robert O. Heuckeroth
- Department of Pediatrics and Department of Molecular Biology and Pharmacology, Washington University School of Medicine, 660 S. Euclid Avenue, Box 8208, St. Louis, MO 63110 U.S.A
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Carniti C, Belluco S, Riccardi E, Cranston AN, Mondellini P, Ponder BAJ, Scanziani E, Pierotti MA, Bongarzone I. The Ret(C620R) mutation affects renal and enteric development in a mouse model of Hirschsprung's disease. THE AMERICAN JOURNAL OF PATHOLOGY 2006; 168:1262-75. [PMID: 16565500 PMCID: PMC1606559 DOI: 10.2353/ajpath.2006.050607] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In rare families RET tyrosine kinase receptor substitutions located in exon 10 (especially at positions 609, 618, and 620) can concomitantly cause the MEN 2A (multiple endocrine neoplasia type 2A) or FMTC (familial medullary thyroid carcinoma) cancer syndromes, and Hirschsprung's disease (HSCR). No animal model mimicking the co-existence of the MEN 2 pathology and HSCR is available, and the association of these activating mutations with a developmental defect still represents an unresolved problem. The aim of this work was to investigate the significance of the RET(C620R) substitution in the pathogenesis of both gain- and loss-of-function RET-associated diseases. We report the generation of a line of mice carrying the C620R mutation in the Ret gene. Although Ret(C620R) homozygotes display severe defects in kidney organogenesis and enteric nervous system development leading to perinatal lethality. Ret(C620R) heterozygotes recapitulate features characteristic of HSCR including hypoganglionosis of the gastrointestinal tract. Surprisingly, heterozygotes do not show any defects in the thyroid that might be attributable to a gain-of-function mutation. The Ret(C620R) allele is responsible for HSCR and affects the development of kidneys and the enteric nervous system (ENS). These mice represent an interesting model for studying new therapeutic approaches for the treatment of HSCR disease.
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Affiliation(s)
- Cristiana Carniti
- Department of Experimental Oncology and Laboratories, Istituto Nazionale per lo Studio e la Cura dei Tumori, Via G. Venezian 1, 20133 Milan, Italy.
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Tanteles GA, Kurup B, Rauch A, Splitt MP. Microcephaly, lissencephaly, Hirschsprung disease and tetralogy of Fallot: a new syndrome? Clin Dysmorphol 2006; 15:107-10. [PMID: 16531738 DOI: 10.1097/01.mcd.0000198927.78835.6a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report an 8-month-old girl with extreme microcephaly, lissencephaly, tetralogy of Fallot and Hirschsprung disease. She has a history of infantile spasms with developmental stagnation. Various diagnoses were considered but none seem to fit her clinical presentation. This combination of findings has not been described in the past and we suggest that this may be a previously undescribed neurodevelopmental syndrome resulting from a global failure of neuronal migration.
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Affiliation(s)
- George A Tanteles
- Institute of Human Genetics, International Centre for Life, Newcastle upon Tyne, UK
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Wong A, Bogni S, Kotka P, de Graaff E, D'Agati V, Costantini F, Pachnis V. Phosphotyrosine 1062 is critical for the in vivo activity of the Ret9 receptor tyrosine kinase isoform. Mol Cell Biol 2005; 25:9661-73. [PMID: 16227613 PMCID: PMC1265823 DOI: 10.1128/mcb.25.21.9661-9673.2005] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The receptor tyrosine kinase Ret plays a critical role in the development of the mammalian excretory and enteric nervous systems. Differential splicing of the primary Ret transcript results in the generation of two main isoforms, Ret9 and Ret51, whose C-terminal amino acid tails diverge after tyrosine (Y) 1062. Monoisoformic mice expressing only Ret9 develop normally and are healthy and fertile. In contrast, animals expressing only Ret51 have aganglionosis of the distal gut and hypoplastic kidneys. By generating monoisoformic mice in which Y1062 of Ret9 has been mutated to phenylalanine, we demonstrate that this amino acid has a critical role in Ret9 signaling that is necessary for the development of the kidneys and the enteric nervous system. These findings argue that the distinct activities of Ret9 and Ret51 result from the differential regulation of Y1062 by C-terminal flanking sequences. However, a mutation which places Y1062 of Ret51 in a Ret9 context improves only marginally the ability of Ret51 to support renal and enteric nervous system development. Finally, monoisoformic mice expressing a variant of Ret9 in which a C-terminal PDZ-binding motif was mutated develop normally and are healthy. Our studies identify Y1062 as a critical regulator of Ret9 signaling and suggest that Ret51-specific motifs are likely to inhibit the activity of this isoform.
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Affiliation(s)
- Adrianne Wong
- Division of Molecular Neurobiology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, United Kingdom
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34
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Affiliation(s)
- Heather M Young
- Department of Anatomy & Cell Biology, University of Melbourne, Victoria, Australia.
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35
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Arighi E, Borrello MG, Sariola H. RET tyrosine kinase signaling in development and cancer. Cytokine Growth Factor Rev 2005; 16:441-67. [PMID: 15982921 DOI: 10.1016/j.cytogfr.2005.05.010] [Citation(s) in RCA: 308] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The variety of diseases caused by mutations in RET receptor tyrosine kinase provides a classic example of phenotypic heterogeneity. Gain-of-function mutations of RET are associated with human cancer. Gene rearrangements juxtaposing the tyrosine kinase domain to heterologous gene partners have been found in sporadic papillary carcinomas of the thyroid (PTC). These rearrangements generate chimeric RET/PTC oncogenes. In the germline, point mutations of RET are responsible for multiple endocrine neoplasia type 2 (MEN 2A and 2B) and familial medullary thyroid carcinoma (FMTC). Both MEN 2 mutations and PTC gene rearrangements potentiate the intrinsic tyrosine kinase activity of RET and, ultimately, activate the RET downstream targets. Loss-of-function mutations of RET cause Hirschsprung's disease (HSCR) or colonic aganglionosis. A deeper understanding of the molecular signaling of normal versus abnormal RET activity in cancer will enable the development of potential new treatments for patients with sporadic and inherited thyroid cancer or MEN 2 syndrome. We now review the role and mechanisms of RET signaling in development and carcinogenesis.
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Affiliation(s)
- Elena Arighi
- Developmental Biology, Institute of Biomedicine, Biomedicum Helsinki, University of Helsinki, Finland
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36
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Alpy F, Ritié L, Jaubert F, Becmeur F, Méchine-Neuville A, Lefebvre O, Arnold C, Sorokin L, Kedinger M, Simon-Assmann P. The expression pattern of laminin isoforms in Hirschsprung disease reveals a distal peripheral nerve differentiation. Hum Pathol 2005; 36:1055-65. [PMID: 16226104 DOI: 10.1016/j.humpath.2005.07.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2005] [Revised: 07/20/2005] [Accepted: 07/25/2005] [Indexed: 12/31/2022]
Abstract
Hirschsprung disease (HD), a developmental disorder, is associated with failure of enteric ganglia formation. Signaling molecules, including secreted basement membrane molecules, derived from the mesenchyme of the gut wall play an important role in the colonization and/or differentiation of the enteric nervous system. The current study aims to define the possible alterations of laminins involved in the pathogenesis of HD. Expression of the various laminin alpha, beta, and gamma chains, was assessed in the aganglionic, transitional, and ganglionic bowel segments of patients with HD or with other motor disorders. Cytoskeletal, neuronal, and glial markers were also included in this study. The major finding highlighted by the present work concerns the clear identification and location of myenteric aganglionic plexuses in HD with some of the laminin antibodies, which reveal a peripheral nerve type of differentiation. Furthermore, we could show an increase of laminin alpha5 chain immunostaining in the dilated muscle of the ganglionic bowel upstream the distal aganglionic region in a subgroup of patients with HD, as well as a relocalization of laminin alpha2 chain in the subepithelial basement membrane. Overall, these basement membrane molecules could provide useful markers for diagnosis of aganglionosis or hypoganglionosis.
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Affiliation(s)
- Fabien Alpy
- Inserm U682, Univ Louis Pasteur, F-67200 Strasbourg, France
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Micci MA, Pattillo MT, Kahrig KM, Pasricha PJ. Caspase inhibition increases survival of neural stem cells in the gastrointestinal tract. Neurogastroenterol Motil 2005; 17:557-64. [PMID: 16078945 DOI: 10.1111/j.1365-2982.2005.00702.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Neural stem cell (NSC) transplantation is a promising tool for the restoration of the enteric nervous system in a variety of motility disorders. Post-transplant survival represents a critical limiting factor for successful repopulation. The aim of this study was to determine the role of both immunological as well as non-immune-mediated mechanisms on post-transplant survival of NSC in the gut. Mouse CNS-derived NSC (CNS-NSC) were transplanted into the pylorus of recipient mice with and without the addition of a caspase-1 inhibitor (Ac-YVAD-cmk) in the injection media. In a separate experiment, CNS-NSC were transplanted in the pylorus of mice that were immunosuppressed by administration of cyclosporin A (CsA). Apoptosis and proliferation of the implanted cells was assessed 1 and 7 days post-transplantation. Survival was assessed 1 week post-transplantation. The degree of immunoresponse was also measured. The addition of a caspase-1 inhibitor significantly reduced apoptosis, increased proliferation and enhanced survival of CNS-NSC. CsA-treatment did not result in improved survival. Our results indicate that caspase-1 inhibition, but not immunosuppression, improves survival of CNS-NSC in the gut. Pre-treatment with a caspase-1 inhibitor may be a practical method to enhance the ability of transplanted CNS-NSC to survive in their new environment.
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Affiliation(s)
- M-A Micci
- Enteric Neuromuscular Disorders and Pain Laboratory, Division of Gastroenterology and Hepatology, University of Texas Medical Branch, Galveston, TX 77555-0764, USA
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38
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Young HM, Turner KN, Bergner AJ. The location and phenotype of proliferating neural-crest-derived cells in the developing mouse gut. Cell Tissue Res 2005; 320:1-9. [PMID: 15714282 DOI: 10.1007/s00441-004-1057-5] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2004] [Accepted: 11/22/2004] [Indexed: 11/30/2022]
Abstract
Neural crest cells that originate in the caudal hindbrain migrate into and along the developing gastrointestinal tract to form the enteric nervous system. While they are migrating, neural-crest-derived cells are also proliferating. Previous studies have shown that the expression of glial-derived neurotrophic factor (GDNF) and endothelin-3 is highest in the embryonic caecum, and that GDNF alone or in combination with endothelin-3 promotes the proliferation of enteric neural-crest-derived cells in vitro. However, whether neural proliferative zones, like those in the central nervous system, are found along the developing gut is unknown. We used a fluorescent nucleic acid stain to identify dividing cells or BrdU labelling (2 h after administration of BrdU to the mother), combined with antibodies specific to neural crest cells to determine the percentage of proliferating crest-derived cells in various gut regions of embryonic day 11.5 (E11.5) and E12.5 mice. The rate of proliferation of crest-derived cells did not vary significantly in different regions of the gut (including the caecum) or at different distances from the migratory wavefront of vagal crest-derived cells. The phenotype of mitotic enteric crest-derived cells was also examined. Cells expressing the pan-neuronal markers, neurofilament-M and Hu, or the glial marker, S100b, were observed undergoing mitosis. However, no evidence was found for proliferation of cells expressing neuron-type-specific markers, such as nitric oxide synthase (at E12.5) or calcitonin gene-related peptide (at E18.5). Thus, for enteric neurons, exit from the cell cycle appears to occur after the expression of pan-neuronal proteins but prior to the expression of markers of terminally differentiated neurons.
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Affiliation(s)
- H M Young
- Department of Anatomy and Cell Biology, University of Melbourne, 3010, Melbourne, Victoria, Australia.
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39
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Wallace AS, Burns AJ. Development of the enteric nervous system, smooth muscle and interstitial cells of Cajal in the human gastrointestinal tract. Cell Tissue Res 2005; 319:367-82. [PMID: 15672264 DOI: 10.1007/s00441-004-1023-2] [Citation(s) in RCA: 150] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Accepted: 10/19/2004] [Indexed: 12/16/2022]
Abstract
The generation of functional neuromuscular activity within the pre-natal gastrointestinal tract requires the coordinated development of enteric neurons and glial cells, concentric layers of smooth muscle and interstitial cells of Cajal (ICC). We investigated the genesis of these different cell types in human embryonic and fetal gut material ranging from weeks 4-14. Neural crest cells (NCC), labelled with antibodies against the neurotrophin receptor p75NTR, entered the foregut at week 4, and migrated rostrocaudally to reach the terminal hindgut by week 7. Initially, these cells were loosely distributed throughout the gut mesenchyme but later coalesced to form ganglia along a rostrocaudal gradient of maturation; the myenteric plexus developed primarily in the foregut, then in the midgut, and finally in the hindgut. The submucosal plexus formed approximately 2-3 weeks after the myenteric plexus, arising from cells that migrated centripetally through the circular muscle layer from the myenteric region. Smooth muscle differentiation, as evidenced by the expression of alpha-smooth muscle actin, followed NCC colonization of the gut within a few weeks. Gut smooth muscle also matured in a rostrocaudal direction, with a large band of alpha-smooth muscle actin being present in the oesophagus at week 8 and in the hindgut by week 11. Circular muscle developed prior to longitudinal muscle in the intestine and colon. ICC emerged from the developing gut mesenchyme at week 9 to surround and closely appose the myenteric ganglia by week 11. By week 14, the intestine was invested with neural cells, longitudinal, circular and muscularis mucosae muscle layers, and an ICC network, giving the fetal gut a mature appearance.
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Affiliation(s)
- Adam S Wallace
- Neural Development Unit, Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH, UK
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40
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Elworthy S, Pinto JP, Pettifer A, Cancela ML, Kelsh RN. Phox2b function in the enteric nervous system is conserved in zebrafish and is sox10-dependent. Mech Dev 2005; 122:659-69. [PMID: 15817223 DOI: 10.1016/j.mod.2004.12.008] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2004] [Revised: 12/16/2004] [Accepted: 12/16/2004] [Indexed: 02/07/2023]
Abstract
Zebrafish lacking functional sox10 have defects in non-ectomesenchymal neural crest derivatives including the enteric nervous system (ENS) and as such provide an animal model for human Waardenburg Syndrome IV. Here, we characterize zebrafish phox2b as a functionally conserved marker of the developing ENS. We show that morpholino-mediated knockdown of Phox2b generates fish modeling Hirschsprung disease. Using markers, including phox2b, we investigate the ontogeny of the sox10 ENS phenotype. As previously shown for melanophore development, ENS progenitor fate specification fails in these mutant fish. However, in addition, we trace back the sox10 mutant ENS defect to an even earlier time point, finding that most neural crest cells fail to migrate ventrally to the gut primordium.
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Affiliation(s)
- Stone Elworthy
- Centre for Regenerative Medicine, Developmental Biology Programme, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
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41
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Degl'Innocenti D, Arighi E, Popsueva A, Sangregorio R, Alberti L, Rizzetti MG, Ferrario C, Sariola H, Pierotti MA, Borrello MG. Differential requirement of Tyr1062 multidocking site by RET isoforms to promote neural cell scattering and epithelial cell branching. Oncogene 2004; 23:7297-309. [PMID: 15326489 DOI: 10.1038/sj.onc.1207862] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The receptor tyrosine kinase RET is alternatively spliced to yield two main isoforms, RET9 and RET51, which differ in their carboxyl terminal. Activated RET induces different biological responses such as morphological transformation, neurite outgrowth, proliferation, cell migration and branching. The two isoforms have been suggested to have separate intracellular signaling pathways and different roles in mouse development. Here we show that both isoforms are able to induce cell scattering of SK-N-MC neuroepithelioma cell line and branching tubule formation in MDCK cell line. However, the Y1062F mutation, which abrogates the transforming activity of both activated RET isoforms in NIH3T3 cells, does not abolish scattering and branching morphogenesis of RET51, whereas impairs these biological effects of RET9. The GDNF-induced biological effects of RET51 are inhibited by the simultaneous abrogation of both Tyr1062 and Tyr1096 docking sites. Thus, Tyr1096 may substitute the functions of Tyr1062. GRB2 is the only known adaptor protein binding to Tyr1096. Dominant-negative GRB2 expressed in MDCK cells together with RET9 or RET51 significantly reduces branching. Therefore, GRB2 is necessary for RET-mediated branching of MDCK cells.
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Affiliation(s)
- Debora Degl'Innocenti
- Department of Experimental Oncology, Research Unit #3, Istituto Nazionale Tumori, Via G. Venezian, 1 20133 Milan, Italy
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42
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Fu M, Lui VCH, Sham MH, Pachnis V, Tam PKH. Sonic hedgehog regulates the proliferation, differentiation, and migration of enteric neural crest cells in gut. ACTA ACUST UNITED AC 2004; 166:673-84. [PMID: 15337776 PMCID: PMC2172437 DOI: 10.1083/jcb.200401077] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Enteric neural crest cells (NCCs) migrate and colonize the entire gut and proliferate and differentiate into neurons and glia of the enteric nervous system in vertebrate embryos. We have investigated the mitogenic and morphogenic functions of Sonic hedgehog (Shh) on enteric NCCs in cell and organ culture. Enteric NCCs expressed Shh receptor Patched and transcripts encoding the Shh signal transducer (Gli1). Shh promoted the proliferation and inhibited the differentiation of NCCs. The pro-neurogenic effect of glial cell line–derived neurotrophic factor (GDNF) on NCCs was abolished by Shh. In gut explants, NCCs migrated from the explants onto the adjacent substratum if GDNF was added, whereas addition of Shh abolished this migration. Neuronal differentiation and coalescence of neural crest–derived cells into myenteric plexuses in explants was repressed by the addition of Shh. Our data suggest that Shh controls the proliferation and differentiation of NCCs and modulates the responsiveness of NCCs toward GDNF inductions.
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Affiliation(s)
- Ming Fu
- Department of Surgery, The University of Hong Kong, 21 Sassoon Rd., Pokfulam, Hong Kong, HKSAR China
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43
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Chalazonitis A, D'Autréaux F, Guha U, Pham TD, Faure C, Chen JJ, Roman D, Kan L, Rothman TP, Kessler JA, Gershon MD. Bone morphogenetic protein-2 and -4 limit the number of enteric neurons but promote development of a TrkC-expressing neurotrophin-3-dependent subset. J Neurosci 2004; 24:4266-82. [PMID: 15115823 PMCID: PMC6729284 DOI: 10.1523/jneurosci.3688-03.2004] [Citation(s) in RCA: 108] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The hypothesis that BMPs (bone morphogenetic proteins), which act early in gut morphogenesis, also regulate specification and differentiation in the developing enteric nervous system (ENS) was tested. Expression of BMP-2 and BMP-4, BMPR-IA (BMP receptor subunit), BMPR-IB, and BMPR-II, and the BMP antagonists, noggin, gremlin, chordin, and follistatin was found when neurons first appear in the primordial bowel at embryonic day 12 (E12). Agonists, receptors, and antagonists were detected in separated populations of neural crest- and noncrest-derived cells. When applied to immunopurified E12 ENS precursors, BMP-2 and BMP-4 induced nuclear translocation of phosphorylated Smad-1 (Sma and Mad-related protein). The number of neurons developing from these cells was increased by low concentrations and decreased by high concentrations of BMP-2 or BMP-4. BMPs induced the precocious appearance of TrkC-expressing neurons and their dependence on neurotrophin-3 for survival. BMP-4 interacted with glial cell line-derived neurotrophic factor (GDNF) to enhance neuronal development but limited GDNF-driven expansion of the precursor pool. BMPs also promoted development of smooth muscle from mesenchymal cells immunopurified at E12. To determine the physiological significance of these observations, the BMP antagonist noggin was overexpressed in the developing ENS of transgenic mice under the control of the neuron-specific enolase promoter. Neuronal numbers in both enteric plexuses and smooth muscle were increased throughout the postnatal small intestine. These increases were already apparent by E18. In contrast, TrkC-expressing neurons decreased in both plexuses of postnatal noggin-overexpressing animals, again an effect detectable at E18. BMP-2 and/or BMP-4 thus limit the size of the ENS but promote the development of specific subsets of enteric neurons, including those that express TrkC.
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Affiliation(s)
- Alcmène Chalazonitis
- Department of Anatomy and Cell Biology, Columbia University, College of Physicians and Surgeons, New York, New York 10032, USA.
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44
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Young HM, Bergner AJ, Anderson RB, Enomoto H, Milbrandt J, Newgreen DF, Whitington PM. Dynamics of neural crest-derived cell migration in the embryonic mouse gut. Dev Biol 2004; 270:455-73. [PMID: 15183726 DOI: 10.1016/j.ydbio.2004.03.015] [Citation(s) in RCA: 211] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2004] [Revised: 03/03/2004] [Accepted: 03/05/2004] [Indexed: 01/26/2023]
Abstract
Neural crest-derived cells that form the enteric nervous system undergo an extensive migration from the caudal hindbrain to colonize the entire gastrointestinal tract. Mice in which the expression of GFP is under the control of the Ret promoter were used to visualize neural crest-derived cell migration in the embryonic mouse gut in organ culture. Time-lapse imaging revealed that GFP(+) crest-derived cells formed chains that displayed complicated patterns of migration, with sudden and frequent changes in migratory speed and trajectories. Some of the leading cells and their processes formed a scaffold along which later cells migrated. To examine the effect of population size on migratory behavior, a small number of the most caudal GFP(+) cells were isolated from the remainder of the population. The isolated cells migrated slower than cells in large control populations, suggesting that migratory behavior is influenced by cell number and cell-cell contact. Previous studies have shown that neurons differentiate among the migrating cell population, but it is unclear whether they migrate. The phenotype of migrating cells was examined. Migrating cells expressed the neural crest cell marker, Sox10, but not neuronal markers, indicating that the majority of migratory cells observed did not have a neuronal phenotype.
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Affiliation(s)
- H M Young
- Department of Anatomy and Cell Biology, University of Melbourne, 3010 Parkville, Victoria, Australia.
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Abstract
Neurotrophic growth factors, including nerve growth factor (NGF) and glial-derived neurotrophic factor (GDNF), have well-established roles in promoting the innervation of target tissues, yet little is known about how the temporal and organ-specific expression of these factors is regulated. A new study reveals that NGF is a direct target of the well-characterized peptide factor endothelin-1 (ET-1), and that ET-1-induced NGF expression is required for sympathetic innervation of the developing heart. These results, and recent studies implicating GDNF and ET-3 in the patterning of the enteric nervous system, suggest that specific pairing of endothelins and neurotrophic factors may be used in distinct target organs to coordinate neuronal migration, differentiation, and survival.
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Affiliation(s)
- Barbara L Hempstead
- Department of Medicine, Weill Medical College of Cornell University, New York, New York 10021, USA.
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46
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Abstract
The enteric nervous system (ENS) is a complex network of interconnected neurons within the wall of the intestine that controls intestinal motility, regulates mucosal secretion and blood flow, and also modulates sensation from the gut. The cells that form the ENS in mammals are derived primarily from vagal neural crest cells. During the past decade there has been an explosion of information about genes that control the development of neural crest. Molecular-genetic analysis has identified several genes that have a role in the development of Hirschsprung's disease. The major susceptibility gene is RET, which is also involved in multiple endocrine neoplasia type 2. Recently, genetic studies have provided strong evidence in animal models that intestinal neuronal dysplasia (IND) is a real entity. HOX11L1 knockout mice and endothelin B receptor-deficient rats demonstrated abnormalities of the ENS resembling IND type B in humans. These findings support the concept that IND may be linked to a genetic defect.
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Affiliation(s)
- Prem Puri
- Children's Research Centre, Our Lady's Hospital for Sick Children, University College Dublin, Ireland
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Bondurand N, Natarajan D, Thapar N, Atkins C, Pachnis V. Neuron and glia generating progenitors of the mammalian enteric nervous system isolated from foetal and postnatal gut cultures. Development 2004; 130:6387-400. [PMID: 14623827 DOI: 10.1242/dev.00857] [Citation(s) in RCA: 152] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Cultures of dissociated foetal and postnatal mouse gut gave rise to neurosphere-like bodies, which contained large numbers of mature neurons and glial cells. In addition to differentiated cells, neurosphere-like bodies included proliferating progenitors which, when cultured at clonal densities, gave rise to colonies containing many of the neuronal subtypes and glial cells present in the mammalian enteric nervous system. These progenitors were also capable of colonising wild-type and aganglionic gut in organ culture and had the potential to generate differentiated progeny that localised within the intrinsic ganglionic plexus. Similar progenitors were also derived from the normoganglionic small intestine of mice with colonic aganglionosis. Our findings establish the feasibility of expanding and isolating early progenitors of the enteric nervous system based on their ability to form distinct neurogenic and gliogenic structures in culture. Furthermore, these experiments provide the rationale for the development of novel approaches to the treatment of congenital megacolon (Hirschsprung's disease) based on the colonisation of the aganglionic gut with progenitors derived from normoganglionic bowel segments.
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Affiliation(s)
- Nadege Bondurand
- Division of Molecular Neurobiology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK
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Barlow A, de Graaff E, Pachnis V. Enteric nervous system progenitors are coordinately controlled by the G protein-coupled receptor EDNRB and the receptor tyrosine kinase RET. Neuron 2004; 40:905-16. [PMID: 14659090 DOI: 10.1016/s0896-6273(03)00730-x] [Citation(s) in RCA: 199] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The enteric nervous system (ENS) in vertebrates is derived mainly from vagal neural crest cells that enter the foregut and colonize the entire wall of the gastrointestinal tract. Failure to completely colonize the gut results in the absence of enteric ganglia (Hirschsprung's disease). Two signaling systems mediated by RET and EDNRB have been identified as critical players in enteric neurogenesis. We demonstrate that interaction between these signaling pathways controls ENS development throughout the intestine. Activation of EDNRB specifically enhances the effect of RET signaling on the proliferation of uncommitted ENS progenitors. In addition, we reveal novel antagonistic roles of these pathways on the migration of ENS progenitors. Protein kinase A is a key component of the molecular mechanisms that integrate signaling by the two receptors. Our data provide strong evidence that the coordinate and balanced interaction between receptor tyrosine kinases and G protein-coupled receptors controls the development of the nervous system in mammals.
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MESH Headings
- Animals
- Cells, Cultured
- Enteric Nervous System/cytology
- Enteric Nervous System/embryology
- Enteric Nervous System/metabolism
- Enteric Nervous System/physiology
- Gene Expression Regulation, Developmental/physiology
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Proto-Oncogene Proteins/biosynthesis
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/physiology
- Proto-Oncogene Proteins c-ret
- Receptor Protein-Tyrosine Kinases/biosynthesis
- Receptor Protein-Tyrosine Kinases/genetics
- Receptor Protein-Tyrosine Kinases/physiology
- Receptor, Endothelin B/biosynthesis
- Receptor, Endothelin B/genetics
- Receptor, Endothelin B/physiology
- Receptors, Endothelin/biosynthesis
- Receptors, Endothelin/genetics
- Receptors, G-Protein-Coupled/biosynthesis
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/physiology
- Signal Transduction/physiology
- Stem Cells/metabolism
- Stem Cells/physiology
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Affiliation(s)
- Amanda Barlow
- Division of Molecular Neurobiology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, United Kingdom
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Abstract
The enteric nervous system (ENS) is principally derived from vagal and sacral neural crest cells that migrate throughout the gastrointestinal tract before differentiating into neurons and glia. These cells form two concentric rings of ganglia and regulate intestinal motility, absorption, and secretion. Abnormalities of ENS development can lead to disorders of intestinal function, including Hirschsprung's disease. These disorders are generally limited to the distal hindgut, suggesting unique features to development of this region. This study characterized the normal spatiotemporal development of the ENS within the avian hindgut. Neural crest cells begin to populate the hindgut at E8, with patterning of both plexuses complete by embryonic day 9. Crest-derived cells arrive in the submucosal layer before the myenteric layer, as well as differentiate to a neuronal phenotype first. The cloaca demonstrates a unique pattern, characterized by a disorganized myenteric plexus and a flattened nerve of Remak. Detailed understanding of normal avian hindgut ENS development will allow better utilization of this model system to study abnormalities of the intestinal nervous system.
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Affiliation(s)
- Adele M Doyle
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA
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Dauger S, Pattyn A, Lofaso F, Gaultier C, Goridis C, Gallego J, Brunet JF. Phox2bcontrols the development of peripheral chemoreceptors and afferent visceral pathways. Development 2003; 130:6635-42. [PMID: 14627719 DOI: 10.1242/dev.00866] [Citation(s) in RCA: 230] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report that the afferent relays of visceral (cardiovascular, digestive and respiratory) reflexes, differentiate under the control of the paired-like homeobox gene Phox2b: the neural crest-derived carotid body, a chemosensor organ, degenerates in homozygous mutants, as do the three epibranchial placode-derived visceral sensory ganglia (geniculate, petrosal and nodose), while their central target, the nucleus of the solitary tract,which integrates all visceral information, never forms. These data establish Phox2b as an unusual `circuit-specific' transcription factor devoted to the formation of autonomic reflex pathways. We also show that Phox2b heterozygous mutants have an altered response to hypoxia and hypercapnia at birth and a decreased tyrosine hydroxylase expression in the petrosal chemosensory neurons, thus providing mechanistic insight into congenital central hypoventilation syndrome, which is associated with heterozygous mutations in PHOX2B.
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Affiliation(s)
- Stéphane Dauger
- Laboratoire de Neurologie et Physiologie du Développement, INSERM EPI9935, Hôpital Robert Debré, 48 Bd Serurier, 75019 Paris, France
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