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Xiaoling Q, Yurong G, Ke X, Yuxiang Q, Panpan A, Yinzhen D, Xue L, Tingting L, Chuanxi T. GDNF's Role in Mitigating Intestinal Reactive Gliosis and Inflammation to Improve Constipation and Depressive Behavior in Rats with Parkinson's disease. J Mol Neurosci 2024; 74:78. [PMID: 39158627 DOI: 10.1007/s12031-024-02254-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 08/06/2024] [Indexed: 08/20/2024]
Abstract
Constipation is a common symptom in patients with Parkinson's disease (PD) and is often associated with depression. Enteric glial cells (EGCs) are crucial for regulating intestinal inflammation and colon motility, and their activation can lead to the death of intestinal neurons. Glial cell line-derived neurotrophic factor (GDNF) has been recognized for its neuroprotective properties in various neurological disorders, including PD. This study explores the potential of GDNF in alleviating intestinal reactive gliosis and inflammation, thereby improving constipation and depressive behavior in a rat model of PD. A PD model was established via unilateral stereotaxic injection of 6-hydroxydopamine (6-OHDA). Five weeks post-injury, AAV5-GDNF (2 ~ 5 × 10^11) was intraperitoneally injected into experimental and control rats. Fecal moisture percentage (FMP) and colonic propulsion rate (CPPR) were used to evaluate colon motility. Colon-related inflammation and colonic epithelial morphology were assessed, and depressive behavior was analyzed one week before sampling. PD rats exhibited reduced colonic motility and GDNF expression, along with increased EGC reactivity and elevated levels of pro-inflammatory cytokines IL-1, IL-6, and TNF-α. Additionally, there was an up-regulation of CX43 and a decrease in PGP 9.5 expression. The intraperitoneal injection of AAV-GDNF significantly protected colonic neurons by inhibiting EGC activation and down-regulating CX43. This treatment also led to a notable reduction in depressive-like symptoms in PD rats with constipation. GDNF effectively reduces markers of reactive gliosis and inflammation, and promotes the survival of colonic neurons, and improves colonic motility in PD rats by regulating CX43 activity. Furthermore, GDNF treatment alleviates depressive behavior, suggesting that GDNF or its agonists could be promising therapeutic agents for managing gastrointestinal and neuropsychiatric symptoms associated with PD.
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Affiliation(s)
- Qin Xiaoling
- Department of Geriatrics, Shanghai 4th People's Hospital, Tongji University, No.1279 Sanmen Road, Shanghai, 200081, China.
| | - Guo Yurong
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Xue Ke
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Qiu Yuxiang
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - An Panpan
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Du Yinzhen
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Li Xue
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Liu Tingting
- Department of Geriatrics, Shanghai 4th People's Hospital, Tongji University, No.1279 Sanmen Road, Shanghai, 200081, China
| | - Tang Chuanxi
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
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Ibi Y, Nishinakamura R. Generating kidney organoids based on developmental nephrology. Eur J Cell Biol 2024; 103:151450. [PMID: 39137450 DOI: 10.1016/j.ejcb.2024.151450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 08/05/2024] [Accepted: 08/08/2024] [Indexed: 08/15/2024] Open
Abstract
Over the past decade, the induction protocols for the two types of kidney organoids (nephron organoids and ureteric bud organoids) from pluripotent stem cells (PSCs) have been established based on the knowledge gained in developmental nephrology. Kidney organoids are now used for disease modeling and drug screening, but they also have potential as tools for clinical transplantation therapy. One of the options to achieve this goal would be to assemble multiple renal progenitor cells (nephron progenitor, ureteric bud, stromal progenitor) to reproduce the organotypic kidney structure from PSCs. At least from mouse PSCs, all the three progenitors have been induced and assembled into such "higher order" kidney organoids. We will provide an overview of the developmental nephrology required for the induction of renal progenitors and discuss recent advances and remaining challenges of kidney organoids for clinical transplantation therapy.
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Affiliation(s)
- Yutaro Ibi
- Department of Kidney Development, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Ryuichi Nishinakamura
- Department of Kidney Development, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan.
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Skoczynski K, Kraus A, Daniel C, Büttner-Herold M, Amann K, Schiffer M, Hermann K, Herrnberger-Eimer L, Tamm ER, Buchholz B. The extracellular matrix protein fibronectin promotes metanephric kidney development. Pflugers Arch 2024; 476:963-974. [PMID: 38563997 PMCID: PMC11139724 DOI: 10.1007/s00424-024-02954-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/07/2024] [Accepted: 03/23/2024] [Indexed: 04/04/2024]
Abstract
Complex interactions of the branching ureteric bud (UB) and surrounding mesenchymal cells during metanephric kidney development determine the final number of nephrons. Impaired nephron endowment predisposes to arterial hypertension and chronic kidney disease. In the kidney, extracellular matrix (ECM) proteins are usually regarded as acellular scaffolds or as the common histological end-point of chronic kidney diseases. Since only little is known about their physiological role in kidney development, we aimed for analyzing the expression and role of fibronectin. In mouse, fibronectin was expressed during all stages of kidney development with significant changes over time. At embryonic day (E) 12.5 and E13.5, fibronectin lined the UB epithelium, which became less pronounced at E16.5 and then switched to a glomerular expression in the postnatal and adult kidneys. Similar results were obtained in human kidneys. Deletion of fibronectin at E13.5 in cultured metanephric mouse kidneys resulted in reduced kidney sizes and impaired glomerulogenesis following reduced cell proliferation and branching of the UB epithelium. Fibronectin colocalized with alpha 8 integrin and fibronectin loss caused a reduction in alpha 8 integrin expression, release of glial-derived neurotrophic factor and expression of Wnt11, both of which are promoters of UB branching. In conclusion, the ECM protein fibronectin acts as a regulator of kidney development and is a determinant of the final nephron number.
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Affiliation(s)
- Kathrin Skoczynski
- Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Andre Kraus
- Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Christoph Daniel
- Department of Nephropathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Maike Büttner-Herold
- Department of Nephropathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Kerstin Amann
- Department of Nephropathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Mario Schiffer
- Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Kristina Hermann
- Institute of Human Anatomy and Embryology, University of Regensburg, Regensburg, Germany
| | | | - Ernst R Tamm
- Institute of Human Anatomy and Embryology, University of Regensburg, Regensburg, Germany
| | - Bjoern Buchholz
- Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany.
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Szyller H, Antosz K, Batko J, Mytych A, Dziedziak M, Wrześniewska M, Braksator J, Pytrus T. Bioactive Components of Human Milk and Their Impact on Child's Health and Development, Literature Review. Nutrients 2024; 16:1487. [PMID: 38794725 PMCID: PMC11124180 DOI: 10.3390/nu16101487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
The composition of human breast milk is an ideal combination of substances necessary for the healthy development of an infant's body while protecting from pathogens and the balanced development of the microbiota. Its composition is dynamic and changes with the age of the child, meeting their current needs. The study provides a thorough overview of human milk components, such as immunological components, growth factors, hormones, carbohydrates, lipids, minerals, and vitamins. Authors focus on capturing the most important aspects of the effects of these substances on a newborn's body, while also looking for specific connections and describing the effects on given systems. Supplementation and the use of ingredients are also discussed. The purpose of this paper is to present the current state of knowledge about the bioactive components of human milk and their impact on the growth, development, and health of the young child.
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Affiliation(s)
- Hubert Szyller
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Katarzyna Antosz
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Joanna Batko
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Agata Mytych
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Marta Dziedziak
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Martyna Wrześniewska
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Joanna Braksator
- 2nd Clinical Department of Paediatrics, Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wrocalw, Poland; (J.B.); (T.P.)
| | - Tomasz Pytrus
- 2nd Clinical Department of Paediatrics, Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wrocalw, Poland; (J.B.); (T.P.)
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Kakoty V, Sarathlal KC, Kaur P, Wadhwa P, Vishwas S, Khan FR, Alhazmi AYM, Almasoudi HH, Gupta G, Chellappan DK, Paudel KR, Kumar D, Dua K, Singh SK. Unraveling the role of glial cell line-derived neurotrophic factor in the treatment of Parkinson's disease. Neurol Sci 2024; 45:1409-1418. [PMID: 38082050 DOI: 10.1007/s10072-023-07253-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/02/2023] [Indexed: 03/16/2024]
Abstract
Parkinson's disease is the second most common neurodegenerative condition with its prevalence projected to 8.9 million individuals globally in the year 2019. Parkinson's disease affects both motor and certain non-motor functions of an individual. Numerous research has focused on the neuroprotective effect of the glial cell line-derived neurotrophic factor (GDNF) in Parkinson's disease. Discovered in 1993, GDNF is a neurotrophic factor identified from the glial cells which was found to have selective effects on promoting survival and regeneration of certain populations of neurons including the dopaminergic nigrostriatal pathway. Given this property, recent studies have focused on the exogenous administration of GDNF for relieving Parkinson's disease-related symptoms both at a pre-clinical and a clinical level. This review will focus on enumerating the molecular connection between Parkinson's disease and GDNF and shed light on all the available drug delivery approaches to facilitate the selective delivery of GDNF into the brain paving the way as a potential therapeutic candidate for Parkinson's disease in the future.
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Affiliation(s)
- Violina Kakoty
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab, India
| | - K C Sarathlal
- Department of Non-Communicable Disease, Translational Health Science and Technology Institute, Faridabad, India
| | - Palwinder Kaur
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab, India
| | - Pankaj Wadhwa
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab, India
| | - Sukriti Vishwas
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab, India
| | - Farhan R Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | | | - Hassan Hussain Almasoudi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Najran University, Najran, 61441, Saudi Arabia
| | - Gaurav Gupta
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248007, India
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur, India
| | | | - Keshav Raj Paudel
- Centre for Inflammation, Faculty of Science, School of Life Sciences, Centenary Institute and University of Technology Sydney, Sydney, NSW, 2050, Australia
| | - Dileep Kumar
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Kamal Dua
- School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab, India.
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
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6
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Agerskov RH, Nyeng P. Innervation of the pancreas in development and disease. Development 2024; 151:dev202254. [PMID: 38265192 DOI: 10.1242/dev.202254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
The autonomic nervous system innervates the pancreas by sympathetic, parasympathetic and sensory branches during early organogenesis, starting with neural crest cell invasion and formation of an intrinsic neuronal network. Several studies have demonstrated that signals from pancreatic neural crest cells direct pancreatic endocrinogenesis. Likewise, autonomic neurons have been shown to regulate pancreatic islet formation, and have also been implicated in type I diabetes. Here, we provide an overview of recent progress in mapping pancreatic innervation and understanding the interactions between pancreatic neurons, epithelial morphogenesis and cell differentiation. Finally, we discuss pancreas innervation as a factor in the development of diabetes.
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Affiliation(s)
- Rikke Hoegsberg Agerskov
- Roskilde University, Department of Science and Environment, Universitetsvej 1, building 28, Roskilde 4000, Denmark
| | - Pia Nyeng
- Roskilde University, Department of Science and Environment, Universitetsvej 1, building 28, Roskilde 4000, Denmark
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Chanpong A, Alves MM, Bonora E, De Giorgio R, Thapar N. Evaluating the molecular and genetic mechanisms underlying gut motility disorders. Expert Rev Gastroenterol Hepatol 2023; 17:1301-1312. [PMID: 38117595 DOI: 10.1080/17474124.2023.2296558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/14/2023] [Indexed: 12/22/2023]
Abstract
INTRODUCTION Gastrointestinal (GI) motility disorders comprise a wide range of different diseases affecting the structural or functional integrity of the GI neuromusculature. Their clinical presentation and burden of disease depends on the predominant location and extent of gut involvement as well as the component of the gut neuromusculature affected. AREAS COVERED A comprehensive literature review was conducted using the PubMed and Medline databases to identify articles related to GI motility and functional disorders, published between 2016 and 2023. In this article, we highlight the current knowledge of molecular and genetic mechanisms underlying GI dysmotility, including disorders of gut-brain interaction, which involve both GI motor and sensory disturbance. EXPERT OPINION Although the pathophysiology and molecular mechanisms underlying many such disorders remain unclear, recent advances in the assessment of intestinal tissue samples, genetic testing with the application of 'omics' technologies and the use of animal models will provide better insights into disease pathogenesis as well as opportunities to improve therapy.
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Affiliation(s)
- Atchariya Chanpong
- Division of Gastroenterology and Hepatology, Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
- Neurogastroenterology & Motility Unit, Gastroenterology Department, Great Ormond Street Hospital for Children, London, UK
| | - Maria M Alves
- Department of Clinical Genetics, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Elena Bonora
- Department of Medical and Surgical Sciences, DIMEC, University of Bologna, Bologna, Italy
- U.O. Genetica Medica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, AOUB, Bologna, Italy
| | - Roberto De Giorgio
- Department of Translational Sciences, University of Ferrara, Ferrara, Italy
| | - Nikhil Thapar
- Stem Cells and Regenerative Medicine, UCL Great Ormond Street Institute of Child Health, London, UK
- Gastroenterology, Hepatology and Liver Transplant, Queensland Children's Hospital, Brisbane, Australia
- School of Medicine, University of Queensland, Brisbane, Australia
- Woolworths Centre for Child Nutrition Research, Queensland University of Technology, Brisbane, Australia
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Walawender L, Becknell B, Matsell DG. Congenital anomalies of the kidney and urinary tract: defining risk factors of disease progression and determinants of outcomes. Pediatr Nephrol 2023; 38:3963-3973. [PMID: 36867265 PMCID: PMC10914409 DOI: 10.1007/s00467-023-05899-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 03/04/2023]
Abstract
Congenital anomalies of the kidney and urinary tract (CAKUT) result from disruptions in normal kidney and urinary tract development during fetal life and collectively represent the most common cause of kidney failure in children worldwide. The antenatal determinants of CAKUT are diverse and include mutations in genes responsible for normal nephrogenesis, alterations in maternal and fetal environments, and obstruction within the normal developing urinary tract. The resultant clinical phenotypes are complex and depend on the timing of the insult, the penetrance of underlying gene mutations, and the severity and timing of obstruction related to the sequence of normal kidney development. Consequently, there is a broad spectrum of outcomes for children born with CAKUT. In this review, we explore the most common forms of CAKUT and those most likely to develop long-term complications of their associated kidney malformations. We discuss the relevant outcomes for the different forms of CAKUT and what is known about clinical characteristics across the CAKUT spectrum that are risk factors of long-term kidney injury and disease progression.
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Affiliation(s)
- Laura Walawender
- Kidney and Urinary Tract Center, The Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA
- Division of Nephrology and Hypertension, Nationwide Children's Hospital, Columbus, OH, USA
| | - Brian Becknell
- Kidney and Urinary Tract Center, The Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA
- Division of Nephrology and Hypertension, Nationwide Children's Hospital, Columbus, OH, USA
| | - Douglas G Matsell
- University of British Columbia, British Columbia Children's Hospital Research Institute, 4480 Oak Street, Vancouver, BC, Canada.
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Kolvenbach CM, Shril S, Hildebrandt F. The genetics and pathogenesis of CAKUT. Nat Rev Nephrol 2023; 19:709-720. [PMID: 37524861 DOI: 10.1038/s41581-023-00742-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2023] [Indexed: 08/02/2023]
Abstract
Congenital anomalies of the kidney and urinary tract (CAKUT) comprise a large variety of malformations that arise from defective kidney or urinary tract development and frequently lead to kidney failure. The clinical spectrum ranges from severe malformations, such as renal agenesis, to potentially milder manifestations, such as vesicoureteral reflux. Almost 50% of cases of chronic kidney disease that manifest within the first three decades of life are caused by CAKUT. Evidence suggests that a large number of CAKUT are genetic in origin. To date, mutations in ~54 genes have been identified as monogenic causes of CAKUT, contributing to 12-20% of the aetiology of the disease. Pathogenic copy number variants have also been shown to cause CAKUT and can be detected in 4-11% of patients. Furthermore, environmental and epigenetic factors can increase the risk of CAKUT. The discovery of novel CAKUT-causing genes is challenging owing to variable expressivity, incomplete penetrance and variable genotype-phenotype correlation. However, such a discovery could ultimately lead to improvements in the accurate molecular genetic diagnosis, assessment of prognosis and multidisciplinary clinical management of patients with CAKUT, potentially including personalized therapeutic approaches.
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Affiliation(s)
- Caroline M Kolvenbach
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Shirlee Shril
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Friedhelm Hildebrandt
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
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Stansberry WM, Pierchala BA. Neurotrophic factors in the physiology of motor neurons and their role in the pathobiology and therapeutic approach to amyotrophic lateral sclerosis. Front Mol Neurosci 2023; 16:1238453. [PMID: 37692101 PMCID: PMC10483118 DOI: 10.3389/fnmol.2023.1238453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023] Open
Abstract
The discovery of the neurotrophins and their potent survival and trophic effects led to great enthusiasm about their therapeutic potential to rescue dying neurons in neurodegenerative diseases. The further discovery that brain-derived neurotrophic factor (BDNF), ciliary neurotrophic factor (CNTF) and glial cell line-derived neurotrophic factor (GDNF) had potent survival-promoting activity on motor neurons led to the proposal for their use in motor neuron diseases such as amyotrophic lateral sclerosis (ALS). In this review we synthesize the literature pertaining to the role of NGF, BDNF, CNTF and GDNF on the development and physiology of spinal motor neurons, as well as the preclinical studies that evaluated their potential for the treatment of ALS. Results from the clinical trials of these molecules will also be described and, with the aid of decades of hindsight, we will discuss what can reasonably be concluded and how this information can inform future clinical development of neurotrophic factors for ALS.
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Affiliation(s)
- Wesley M. Stansberry
- The Department of Anatomy, Cell Biology and Physiology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States
- Medical Neuroscience Graduate Program, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Brian A. Pierchala
- The Department of Anatomy, Cell Biology and Physiology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States
- Medical Neuroscience Graduate Program, Indiana University School of Medicine, Indianapolis, IN, United States
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Wang L, Gharibani P, Yang Y, Guo Y, Yin J. Regulation of enteric nervous system via sacral nerve stimulation in opioid-induced constipated rats. Front Neurosci 2023; 17:1146883. [PMID: 37332864 PMCID: PMC10272359 DOI: 10.3389/fnins.2023.1146883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/16/2023] [Indexed: 06/20/2023] Open
Abstract
Objectives Sacral nerve stimulation (SNS) has been employed for treating constipation. However, its mechanisms involving enteric nervous system (ENS) and motility are largely unknown. In this study, we investigated the possible ENS involvement of SNS in treating Loperamide-induced constipation in rats. Methods Experiment-1 was designed to study the effects of acute SNS on whole colon transit time (CTT). In experiment-2, we induced constipation by Loperamide and then applied daily SNS or sham-SNS for 1 week. Choline acetyltransferase (ChAT), nitric oxide synthase (nNOS), and PGP9.5 in colon tissue were examined at the end of the study. Moreover, survival factors such as phosphorylated AKT (p-AKT) and Glial cell-derived neurotrophic factor (GDNF) were measures by immunohistochemistry (IHC) and western blot (WB). Key results (1) SNS with one set of parameters shortened CTT starting at 90 min after phenol red administration (p < 0.05). (2) While Loperamide induced slow transit constipation with a significant reduction in fecal pellet number and feces wet weight, daily SNS for a week resolved constipation. (3) Moreover, SNS was able to shorten whole gut transit time comparing to sham-SNS (p = 0.01). (4) Loperamide reduced the number of PGP9.5 and ChAT positive cells, and downregulated ChAT protein expression and upregulated nNOS protein expression, whereas these detrimental effects were significantly reversed by SNS. (5) Furthermore, SNS increased expressions of both GDNF and p-AKT in colon tissue. (6) Vagal activity was reduced following Loperamide (p < 0.01); yet SNS normalized vagal activity. Conclusion SNS with appropriate parameters improves opioid-induced constipation and reversed the detrimental effects of Loperamide on enteric neurons possibly via the GDNF-PI3K/Akt pathway.GRAPHICAL ABSTRACT.
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Affiliation(s)
- Liyun Wang
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Payam Gharibani
- Division of Neuroimmunology, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Yi Yang
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yu Guo
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Jieyun Yin
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Du X, Yu M, Ju H, Xue S, Li Y, Wu X, Xu H, Shen Q. Inhibition of MAPK/ERK pathway activation rescues congenital anomalies of the kidney and urinary tract (CAKUT) in Robo2 PB/+ Gen1 PB/+ mice. Biochem Biophys Res Commun 2023; 653:153-160. [PMID: 36870240 DOI: 10.1016/j.bbrc.2023.02.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/15/2023] [Accepted: 02/18/2023] [Indexed: 02/27/2023]
Abstract
Congenital anomalies of the kidney and urinary tract (CAKUT) have been attributed to genetic and environmental factors. However, monogenic and copy number variations cannot sufficiently explain the cause of the majority of CAKUT cases. Multiple genes through various modes of inheritance may lead to CAKUT pathogenesis. We previously showed that Robo2 and Gen1 coregulated the germination of ureteral buds (UB), significantly increasing CAKUT incidence. Furthermore, MAPK/ERK pathway activation is the central mechanism of these two genes. Thus, we explored the effect of the MAPK/ERK inhibitor U0126 in the CAKUT phenotype in Robo2PB/+Gen1PB/+ mice. Intraperitoneal injection of U0126 during pregnancy prevented the development of the CAKUT phenotype in Robo2PB/+Gen1PB/+ mice. Additionally, a single dose of 30 mg/kg U0126 on day 10.5 embryos (E10.5) was most effective for reducing CAKUT incidence and ectopic UB outgrowth in Robo2PB/+Gen1PB/+ mice. Furthermore, embryonic kidney mesenchymal levels of p-ERK were significantly decreased on day E11.5 after U0126 treatment, along with decreased cell proliferation index PHH3 and ETV5 expression. Collectively, Gen1 and Robo2 exacerbated the CAKUT phenotype in Robo2PB/+Gen1PB/+ mice through the MAPK/ERK pathway, increasing proliferation and ectopic UB outgrowth.
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Affiliation(s)
- Xuanjin Du
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China
| | - Minghui Yu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China
| | - Haixin Ju
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China
| | - Shanshan Xue
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China
| | - Yaxin Li
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China
| | - Xiaohui Wu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China; State Key Laboratory of Genetic Engineering and National Center for International Research of Development and Disease, Institute of Developmental Biology and Molecular Medicine, Fudan University, Shanghai, 200433, China.
| | - Hong Xu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China.
| | - Qian Shen
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Fudan University, Shanghai, 201102, China.
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13
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Honeycutt SE, N’Guetta PEY, Hardesty DM, Xiong Y, Cooper SL, O’Brien LL. Netrin-1 directs vascular patterning and maturity in the developing kidney. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.14.536975. [PMID: 37131589 PMCID: PMC10153117 DOI: 10.1101/2023.04.14.536975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Blood filtering by the kidney requires the establishment of an intricate vascular system that works to support body fluid and organ homeostasis. Despite these critical roles, little is known about how vascular architecture is established during kidney development. More specifically, how signals from the kidney influence vessel maturity and patterning remains poorly understood. Netrin-1 (Ntn1) is a secreted ligand critical for vessel and neuronal guidance. Here, we demonstrate that Ntn1 is expressed by stromal progenitors in the developing kidney, and conditional deletion of Ntn1 from Foxd1+ stromal progenitors (Foxd1GC/+;Ntn1fl/fl) results in hypoplastic kidneys that display extended nephrogenesis. Despite expression of the netrin-1 receptor Unc5c in the adjacent nephron progenitor niche, Unc5c knockout kidneys develop normally. The netrin-1 receptor Unc5b is expressed by embryonic kidney endothelium and therefore we interrogated the vascular networks of Foxd1GC/+;Ntn1fl/fl kidneys. Wholemount, 3D analyses revealed the loss of a predictable vascular pattern in mutant kidneys. As vascular patterning has been linked to vessel maturity, we investigated arterialization in these mutants. Quantification of the CD31+ endothelium at E15.5 revealed no differences in metrics such as the number of branches or branch points, whereas the arterial vascular smooth muscle metrics were significantly reduced at both E15.5 and P0. In support of these results, whole kidney RNA-seq showed upregulation of angiogenic programs and downregulation of muscle-related programs which included smooth muscle-associated genes. Together, our findings highlight the significance of netrin-1 to proper vascularization and kidney development.
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Affiliation(s)
- Samuel Emery Honeycutt
- Department of Cell Biology and Physiology University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | - Deanna Marie Hardesty
- Department of Cell Biology and Physiology University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yubin Xiong
- Department of Cell Biology and Physiology University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Shamus Luke Cooper
- Department of Cell Biology and Physiology University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Lori Lynn O’Brien
- Department of Cell Biology and Physiology University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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14
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Mätlik K, Olfat S, Cowlishaw MC, Moreno ED, Ollila S, Andressoo JO. In vivo modulation of endogenous gene expression via CRISPR/Cas9-mediated 3'UTR editing. Heliyon 2023; 9:e13844. [PMID: 36923835 PMCID: PMC10009458 DOI: 10.1016/j.heliyon.2023.e13844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
The 3' untranslated regions (UTRs) modulate gene expression levels by regulating mRNA stability and translation. We previously showed that the replacement of the negative regulatory elements from the 3'UTR of glial cell line-derived neurotrophic factor (GDNF) resulted in increased endogenous GDNF expression while retaining its normal spatiotemporal expression pattern. Here, we have developed a methodology for the generation of in vivo hyper- and hypomorphic alleles via 3'UTR targeting using the CRISPR/Cas9 system. We demonstrate that CRISPR/Cas9-mediated excision of a long inhibitory sequence from Gdnf native 3'UTR in mouse zygotes increases the levels of endogenous GDNF with similar phenotypic alterations in embryonic kidney development as we described in GDNF constitutive and conditional hypermorphic mice. Furthermore, we show that CRISPR/Cas9-mediated targeting of 3'UTRs in vivo allows the modulation of the expression levels of two other morphogens, Gdf11 and Bdnf. Together, our work demonstrates the power of in vivo 3'UTR editing using the CRISPR/Cas9 system to create hyper- and hypomorphic alleles, suggesting wide applicability in studies on gene function and potentially, in gene therapy.
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Affiliation(s)
- Kärt Mätlik
- Department of Pharmacology, Faculty of Medicine & Helsinki Institute of Life Science, University of Helsinki, 00290 Helsinki, Finland
| | - Soophie Olfat
- Department of Pharmacology, Faculty of Medicine & Helsinki Institute of Life Science, University of Helsinki, 00290 Helsinki, Finland.,Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, 17177 Stockholm, Sweden
| | - Mark Cary Cowlishaw
- Department of Pharmacology, Faculty of Medicine & Helsinki Institute of Life Science, University of Helsinki, 00290 Helsinki, Finland
| | - Eva Domenech Moreno
- Helsinki Institute of Life Science, University of Helsinki, 00290 Helsinki, Finland.,Translational Cancer Medicine Program, University of Helsinki, 00290 Helsinki, Finland
| | - Saara Ollila
- Translational Cancer Medicine Program, University of Helsinki, 00290 Helsinki, Finland
| | - Jaan-Olle Andressoo
- Department of Pharmacology, Faculty of Medicine & Helsinki Institute of Life Science, University of Helsinki, 00290 Helsinki, Finland.,Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, 17177 Stockholm, Sweden
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15
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Parimi V, Tolba K, Danziger N, Kuang Z, Sun D, Lin DI, Hiemenz MC, Schrock AB, Ross JS, Oxnard GR, Huang RSP. Genomic landscape of 891 RET fusions detected across diverse solid tumor types. NPJ Precis Oncol 2023; 7:10. [PMID: 36690680 PMCID: PMC9870857 DOI: 10.1038/s41698-023-00347-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 01/05/2023] [Indexed: 01/25/2023] Open
Abstract
In this study, we report the clinicopathologic and genomic profiles of 891 patients with RET fusion driven advanced solid tumors. All patient samples were tested using a tissue-based DNA hybrid capture next generation sequencing (NGS) assay and a subset of the samples were liquid biopsies tested using a liquid-based hybrid capture NGS assay. RET fusions were found in 523 patients with NSCLC and in 368 patients with other solid tumors. The two tumor types with the highest number of RET fusion were lung adenocarcinoma and thyroid papillary carcinoma, and they had a prevalence rate 1.14% (455/39,922) and 9.09% (109/1199), respectively. A total of 61 novel fusions were discovered in this pan-tumor cohort. The concordance of RET fusion detection across tumor types among tissue and liquid-based NGS was 100% (8/8) in patients with greater than 1% composite tumor fraction (cTF). Herein, we present the clinicopathologic and genomic landscape of a large cohort of RET fusion positive tumors and we observed that liquid biopsy-based NGS is highly sensitive for RET fusions at cTF ≥1%.
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Affiliation(s)
- Vamsi Parimi
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Khaled Tolba
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Natalie Danziger
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Zheng Kuang
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Daokun Sun
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Douglas I. Lin
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Matthew C. Hiemenz
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Alexa B. Schrock
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
| | - Jeffrey S. Ross
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA ,grid.410412.20000 0004 0384 8998Department of Pathology and Urology, State University of New York (SUNY) Upstate Medical University, Syracuse, New York, NY USA
| | - Geoffrey R. Oxnard
- grid.418158.10000 0004 0534 4718Foundation Medicine, Inc, Cambridge, MA USA
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16
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Alhawaj AF. Stem cell-based therapy for hirschsprung disease, do we have the guts to treat? Gene Ther 2022; 29:578-587. [PMID: 34121091 PMCID: PMC9684071 DOI: 10.1038/s41434-021-00268-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 04/26/2021] [Accepted: 05/27/2021] [Indexed: 01/09/2023]
Abstract
Hirschsprung disease (HSCR) is a congenital anomaly of the colon that results from failure of enteric nervous system formation, leading to a constricted dysfunctional segment of the colon with variable lengths, and necessitating surgical intervention. The underlying pathophysiology includes a defect in neural crest cells migration, proliferation and differentiation, which are partially explained by identified genetic and epigenetic alterations. Despite the high success rate of the curative surgeries, they are associated with significant adverse outcomes such as enterocolitis, fecal soiling, and chronic constipation. In addition, some patients suffer from extensive lethal variants of the disease, all of which justify the need for an alternative cure. During the last 5 years, there has been considerable progress in HSCR stem cell-based therapy research. However, many major issues remain unsolved. This review will provide concise background information on HSCR, outline the future approaches of stem cell-based HSCR therapy, review recent key publications, discuss technical and ethical challenges the field faces prior to clinical translation, and tackle such challenges by proposing solutions and evaluating existing approaches to progress further.
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Affiliation(s)
- Ali Fouad Alhawaj
- Department of Haematology, UCL Cancer Institute, University College London, London, WC1E 6DD, United Kingdom.
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
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17
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Hong M, Li X, Li Y, Zhou Y, Li Y, Chi S, Cao G, Li S, Tang S. Hirschsprung's disease: key microRNAs and target genes. Pediatr Res 2022; 92:737-747. [PMID: 34880446 DOI: 10.1038/s41390-021-01872-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 11/01/2021] [Accepted: 11/13/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND This study aimed to identify key microRNAs (miRNAs), pathways, and target genes mediating Hirschsprung's disease (HSCR) pathogenesis and identify the diagnostic potential of miRNAs. METHODS The Gene Expression Omnibus database and reverse transcription-quantitative PCR were used to compare miRNA expression between ganglionic and aganglionic colon tissues of children with HSCR, and the TAM 2.0 database was used to identify colon tissue-specific miRNAs. The StarBase database, TargetScan database, luciferase reporter, and western blot assays were used to analyze miRNA-messenger RNA interactions. OmicShare was used to perform functional and pathway enrichment analyses of the target genes. Migration assays were performed to validate the functions of the miRNAs. RESULTS The TAM 2.0 database analysis and reverse transcription-quantitative PCR showed that hsa-miR-192-5p, hsa-miR-200a-3p, and hsa-miR-200b-3p were colon tissue-specific and upregulated in aganglionic colon tissue compared to paired ganglionic colon tissue. These three miRNAs effectively reduced cell viability and migration. Luciferase reporter and western blot assays verified the direct interaction between these three miRNAs and the target genes of ZEB2 and FNDC3B. Furthermore, the plasma levels of these miRNAs were higher in HSCR patients than in non-HSCR patients. CONCLUSIONS Three plasma miRNAs (hsa-miR-192-5p, hsa-miR-200a-3p, and hsa-miR-200b-3p) are potential peripheral HSCR biomarkers. IMPACT The molecular mechanisms underlying HSCR are unclear. HSCR is most accurately diagnosed using rectal biopsy samples, and no consensus has been reached on the use of blood-based tests for HSCR diagnosis. Circulating miRNAs may be candidate diagnostic HSCR biomarkers because they are typically easily detectable, stable, and tissue-specific. Three plasma miRNAs (miR-200a-3p, miR-192-5p, and miR-200b-3p) are potential peripheral HSCR biomarkers.
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Affiliation(s)
- Mei Hong
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangyang Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yun Zhou
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yibo Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuiqing Chi
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guoqing Cao
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuai Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaotao Tang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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18
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Ke FS, Holloway S, Uren RT, Wong AW, Little MH, Kluck RM, Voss AK, Strasser A. The BCL-2 family member BID plays a role during embryonic development in addition to its BH3-only protein function by acting in parallel to BAX, BAK and BOK. EMBO J 2022; 41:e110300. [PMID: 35758142 PMCID: PMC9340487 DOI: 10.15252/embj.2021110300] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 12/31/2022] Open
Abstract
The intrinsic apoptosis pathway, regulated by the BCL-2 protein family, is essential for embryonic development. Using mice lacking all known apoptosis effectors, BAX, BAK and BOK, we have previously defined the processes during development that require apoptosis. Rare Bok-/- Bax-/- Bak-/- triple knockout (TKO) mice developed to adulthood and several tissues that were thought to require apoptosis during development appeared normal. This raises the question if all apoptosis had been abolished in the TKO mice or if other BCL-2 family members could act as effectors of apoptosis. Here, we investigated the role of BID, generally considered to link the extrinsic and intrinsic apoptosis pathways, acting as a BH3-only protein initiating apoptosis upstream of BAX and BAK. We found that Bok-/- Bax-/- Bak-/- Bid-/- quadruple knockout (QKO) mice have additional developmental anomalies compared to TKO mice, consistent with a role of BID, not only upstream but also in parallel to BAX, BAK and BOK. Mitochondrial experiments identified a small cytochrome c-releasing activity of full-length BID. Collectively, these findings suggest a new effector role for BID in the intrinsic apoptosis pathway.
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Affiliation(s)
- Francine S Ke
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
- Department of Medical BiologyUniversity of MelbourneMelbourneVicAustralia
| | - Steven Holloway
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
| | - Rachel T Uren
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
- Department of Medical BiologyUniversity of MelbourneMelbourneVicAustralia
| | - Agnes W Wong
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
| | - Melissa H Little
- Department of PaediatricsUniversity of MelbourneMelbourneVicAustralia
- Murdoch Children's Medical Research InstituteMelbourneVicAustralia
| | - Ruth M Kluck
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
- Department of Medical BiologyUniversity of MelbourneMelbourneVicAustralia
| | - Anne K Voss
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
- Department of Medical BiologyUniversity of MelbourneMelbourneVicAustralia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research (WEHI)MelbourneVicAustralia
- Department of Medical BiologyUniversity of MelbourneMelbourneVicAustralia
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19
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Huang B, Zeng Z, Zhang CC, Schreiber ME, Li Z. Approaches to kidney replacement therapies—opportunities and challenges. Front Cell Dev Biol 2022; 10:953408. [PMID: 35982852 PMCID: PMC9380013 DOI: 10.3389/fcell.2022.953408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/01/2022] [Indexed: 11/29/2022] Open
Abstract
One out of seven people develop chronic kidney disease (CKD). When kidney function continues to decline, CKD patients may develop end-stage renal disease (ESRD, or kidney failure). More than 2 out of 1,000 adults develop ESRD and these patients must live on dialysis or get a kidney transplant to survive. Each year, more than $51 billion is spent to treat patients with ESRD in the United States. In addition, ESRD greatly reduces longevity and quality of life for patients. Compared to dialysis, kidney transplant offers the best chance of survival, but few donor organs are available. Thus, there is an urgent need for innovative solutions that address the shortage of kidneys available for transplantation. Here we summarize the status of current approaches that are being developed to solve the shortage of donor kidneys. These include the bioartificial kidney approach which aims to make a portable dialysis device, the recellularization approach which utilizes native kidney scaffold to make an engineered kidney, the stem cell-based approach which aims to generate a kidney de novo by recapitulating normal kidney organogenesis, the xenotransplantation approach which has the goal to make immunocompatible pig kidneys for transplantation, and the interspecies chimera approach which has potential to generate a human kidney in a host animal. We also discuss the interconnections among the different approaches, and the remaining challenges of translating these approaches into novel therapies.
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Affiliation(s)
- Biao Huang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Deptartment of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Zipeng Zeng
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Deptartment of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Chennan C. Zhang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Deptartment of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Megan E. Schreiber
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Deptartment of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Zhongwei Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Deptartment of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- *Correspondence: Zhongwei Li,
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20
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Natarajan D, McCann C, Dattani J, Pachnis V, Thapar N. Multiple Roles of Ret Signalling During Enteric Neurogenesis. Front Mol Neurosci 2022; 15:832317. [PMID: 35694443 PMCID: PMC9186293 DOI: 10.3389/fnmol.2022.832317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/15/2022] [Indexed: 12/03/2022] Open
Abstract
The majority of the enteric nervous system is formed by vagal neural crest cells which enter the foregut and migrate rostrocaudally to colonise the entire length of the gastrointestinal tract. Absence of enteric ganglia from the distal colon are the hallmark of Hirschsprung disease, a congenital disorder characterised by severe intestinal dysmotility. Mutations in the receptor tyrosine kinase RET have been identified in approximately 50% of familial cases of Hirschsprung disease but the cellular processes misregulated in this condition remain unclear. By lineage tracing neural crest cells in mice homozygous for a knock-in allele of Ret (Ret51/51), we demonstrate that normal activity of this receptor is required in vivo for the migration of enteric nervous system progenitors throughout the gut. In mutant mice, progenitors of enteric neurons fail to colonise the distal colon, indicating that failure of colonisation of the distal intestine is a major contributing factor for the pathogenesis of Hirschsprung disease. Enteric nervous system progenitors in the ganglionic proximal guts of mutant mice are also characterised by reduced proliferation and differentiation. These findings suggest that the functional abnormalities in Hirschsprung disease result from a combination of colonic aganglionosis and deficits in neuronal circuitry of more proximal gut segments. The reduced neurogenesis in the gut of Ret51/51 mutants was reproduced in the multilineage enteric nervous system progenitors isolated from these animals. Correction of the molecular defects of such progenitors fully restored their neurogenic potential in culture. These observations enhance our understanding of the pathogenesis of Hirschsprung disease and highlight potential approaches for its treatment.
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Affiliation(s)
- Dipa Natarajan
- Division of Molecular Neurobiology, MRC National Institute for Medical Research, London, United Kingdom
- Birth Defects Research Centre, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
- *Correspondence: Dipa Natarajan,
| | - Conor McCann
- Birth Defects Research Centre, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Justine Dattani
- Department of Mathematical Sciences, University of Bath, Bath, United Kingdom
| | - Vassilis Pachnis
- Division of Molecular Neurobiology, MRC National Institute for Medical Research, London, United Kingdom
- The Francis Crick Institute, London, United Kingdom
- Vassilis Pachnis,
| | - Nikhil Thapar
- Division of Molecular Neurobiology, MRC National Institute for Medical Research, London, United Kingdom
- Birth Defects Research Centre, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
- Department of Gastroenterology, Hepatology and Liver Transplant, Queensland Children’s Hospital, Brisbane, QLD, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- Nikhil Thapar,
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21
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Mueller JL, Goldstein AM. The science of Hirschsprung disease: What we know and where we are headed. Semin Pediatr Surg 2022; 31:151157. [PMID: 35690468 DOI: 10.1016/j.sempedsurg.2022.151157] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The enteric nervous system (ENS) is a rich network of neurons and glial cells that comprise the gastrointestinal tract's intrinsic nervous system and are responsible for controlling numerous complex functions, including digestion, transit, secretion, barrier function, and maintenance of a healthy microbiome. Development of a functional ENS relies on the coordinated interaction between enteric neural crest-derived cells and their environment as the neural crest-derived cells migrate rostrocaudally along the embryonic gut mesenchyme. Congenital or acquired disruption of ENS development leads to various neurointestinal diseases. Hirschsprung disease is a congenital neurocristopathy, a disease of the neural crest. It is characterized by a variable length of distal colonic aganglionosis due to a failure in enteric neural crest-derived cell proliferation, migration, differentiation, and/or survival. In this review, we will review the science of Hirschsprung disease, targeting an audience of pediatric surgeons. We will discuss the basic biology of normal ENS development, as well as what goes awry in ENS development in Hirschsprung disease. We will review animal models that have been integral to studying this disease, as well as current hot topics and future research, including genetic risk profiling, stem cell therapy, non-invasive diagnostic techniques, single-cell sequencing techniques, and genotype-phenotype correlation.
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Affiliation(s)
- Jessica L Mueller
- Department of Pediatric Surgery, Massachusetts General Hospital, Massachusetts General Hospital for Children, Harvard Medical School, 55 Fruit St., WRN 1151, Boston, MA 02114, United States
| | - Allan M Goldstein
- Department of Pediatric Surgery, Massachusetts General Hospital, Massachusetts General Hospital for Children, Harvard Medical School, 55 Fruit St., WRN 1151, Boston, MA 02114, United States.
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22
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Boesmans W, Nash A, Tasnády KR, Yang W, Stamp LA, Hao MM. Development, Diversity, and Neurogenic Capacity of Enteric Glia. Front Cell Dev Biol 2022; 9:775102. [PMID: 35111752 PMCID: PMC8801887 DOI: 10.3389/fcell.2021.775102] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/09/2021] [Indexed: 12/15/2022] Open
Abstract
Enteric glia are a fascinating population of cells. Initially identified in the gut wall as the "support" cells of the enteric nervous system, studies over the past 20 years have unveiled a vast array of functions carried out by enteric glia. They mediate enteric nervous system signalling and play a vital role in the local regulation of gut functions. Enteric glial cells interact with other gastrointestinal cell types such as those of the epithelium and immune system to preserve homeostasis, and are perceptive to luminal content. Their functional versatility and phenotypic heterogeneity are mirrored by an extensive level of plasticity, illustrated by their reactivity in conditions associated with enteric nervous system dysfunction and disease. As one of the hallmarks of their plasticity and extending their operative relationship with enteric neurons, enteric glia also display neurogenic potential. In this review, we focus on the development of enteric glial cells, and the mechanisms behind their heterogeneity in the adult gut. In addition, we discuss what is currently known about the role of enteric glia as neural precursors in the enteric nervous system.
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Affiliation(s)
- Werend Boesmans
- Biomedical Research Institute (BIOMED), Hasselt University, Hasselt, Belgium
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Amelia Nash
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
| | - Kinga R. Tasnády
- Biomedical Research Institute (BIOMED), Hasselt University, Hasselt, Belgium
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Wendy Yang
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taiwan, Taiwan
| | - Lincon A. Stamp
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
| | - Marlene M. Hao
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
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Li M, Xu DM, Lin SB, Yang ZL, Xu TY, Yang JH, Yin J. Single-Cell Gene Expression Analysis in Patients with Medullary Sponge Kidney and a Retrospective Study. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7688947. [PMID: 36408280 PMCID: PMC9674422 DOI: 10.1155/2022/7688947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/28/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To establish better diagnosis thinking and provide advanced understanding of MSK, the CT imaging features, clinical characteristics, and the expression of suspected genes in the kidney spatiotemporal immune zonation and fetal renal development were investigated. METHODS 17 patients with MSK hospitalized in our hospital were selected as our research subjects. Human Phenotype Ontology, MalaCards: The Human Disease Database, GeneCards: The Human Gene Database, Human Protein Atlas, and Single Cell Expression Atlas were used to analyze this disease. RESULTS In our 17 patients, the incidence of MSK tended to be the same in male and female, and the onset age of MSK was probably 31-50 years old. The top one related disease of MSK was nephrocalcinosis and the most frequent phenotype related to MSK was nephrolithiasis. In addition, the expression of HNF1B, CLCN5, GDNF, ATP6V0A4, ATP6V1B1, LAMA2, RET, ACAN, and ABCC8 has been implicated in both human kidney immune zonation and fetal kidney development. CONCLUSIONS HNF1B, CLCN5, GDNF, ATP6V0A4, ATP6V1B1, LAMA2, RET, ACAN, and ABCC8 could be independent indicators for the diagnosis and preventive intervention of MSK patients, and abnormal kidney development due to mutations in key genes was the underlying cause of MSK.
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Affiliation(s)
- Ming Li
- Division of Urological Surgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Da-Ming Xu
- Division of Urological Surgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Shu-Bin Lin
- Division of Urological Surgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Zheng-Liang Yang
- Division of Urological Surgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Teng-Yu Xu
- Division of Urological Surgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Jin-Huan Yang
- Division of Urological Surgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Jun Yin
- Division of Hematology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Department of Clinical Laboratory Medicine, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
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TAKAHASHI M. RET receptor signaling: Function in development, metabolic disease, and cancer. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2022; 98:112-125. [PMID: 35283407 PMCID: PMC8948417 DOI: 10.2183/pjab.98.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
The RET proto-oncogene encodes a receptor tyrosine kinase whose alterations are responsible for various human cancers and developmental disorders, including thyroid cancer, non-small cell lung cancer, multiple endocrine neoplasia type 2, and Hirschsprung's disease. RET receptors are physiologically activated by glial cell line-derived neurotrophic factor (GDNF) family ligands that bind to the coreceptor GDNF family receptor α (GFRα). Signaling via the GDNF/GFRα1/RET ternary complex plays crucial roles in the development of the enteric nervous system, kidneys, and urinary tract, as well as in the self-renewal of spermatogonial stem cells. In addition, another ligand, growth differentiation factor-15 (GDF15), has been shown to bind to GFRα-like and activate RET, regulating body weight. GDF15 is a stress response cytokine, and its elevated serum levels affect metabolism and anorexia-cachexia syndrome. Moreover, recent development of RET-specific kinase inhibitors contributed significantly to progress in the treatment of patients with RET-altered cancer. This review focuses on the broad roles of RET in development, metabolic diseases, and cancer.
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Affiliation(s)
- Masahide TAKAHASHI
- International Center for Cell and Gene Therapy, Fujita Health University, Toyoake, Aichi, Japan
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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25
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Clugston A, Bodnar A, Cerqueira DM, Phua YL, Lawler A, Boggs K, Pfenning A, Ho J, Kostka D. Chromatin accessibility and microRNA expression in nephron progenitor cells during kidney development. Genomics 2022; 114:278-291. [PMID: 34942352 PMCID: PMC8792369 DOI: 10.1016/j.ygeno.2021.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 01/03/2023]
Abstract
Mammalian nephrons originate from a population of nephron progenitor cells, and changes in these cells' transcriptomes contribute to the cessation of nephrogenesis, an important determinant of nephron number. To characterize microRNA (miRNA) expression and identify putative cis-regulatory regions, we collected nephron progenitor cells from mouse kidneys at embryonic day 14.5 and postnatal day zero and assayed small RNA expression and transposase-accessible chromatin. We detect expression of 1104 miRNA (114 with expression changes), and 46,374 chromatin accessible regions (2103 with changes in accessibility). Genome-wide, our data highlight processes like cellular differentiation, cell migration, extracellular matrix interactions, and developmental signaling pathways. Furthermore, they identify new candidate cis-regulatory elements for Eya1 and Pax8, both genes with a role in nephron progenitor cell differentiation. Finally, we associate expression-changing miRNAs, including let-7-5p, miR-125b-5p, miR-181a-2-3p, and miR-9-3p, with candidate cis-regulatory elements and target genes. These analyses highlight new putative cis-regulatory loci for miRNA in nephron progenitors.
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Affiliation(s)
- Andrew Clugston
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Rangos Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Department of Pediatrics, Division of Nephrology, University of Pittsburgh School of Medicine, PA, USA
| | - Andrew Bodnar
- Rangos Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Department of Pediatrics, Division of Nephrology, University of Pittsburgh School of Medicine, PA, USA
| | - Débora Malta Cerqueira
- Rangos Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Department of Pediatrics, Division of Nephrology, University of Pittsburgh School of Medicine, PA, USA
| | - Yu Leng Phua
- Rangos Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Division of Genetic and Genomic Medicine, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Department of Pathology, Clinical Biochemical Genetics Laboratory, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Alyssa Lawler
- Computational Biology, Carnegie Mellon University, Pittsburgh, PA, USA,Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, USA,Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Kristy Boggs
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Andreas Pfenning
- Computational Biology, Carnegie Mellon University, Pittsburgh, PA, USA,Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Jacqueline Ho
- Rangos Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Department of Pediatrics, Division of Nephrology, University of Pittsburgh School of Medicine, PA, USA,Co-Corresponding authors:Dr. Dennis Kostka, Rangos Research Center 8117, Department of Developmental Biology, 530 45th St., Pittsburgh, Pennsylvania 15224, USA, Phone: 412-692-9905, ; Dr. Jacqueline Ho, Rangos Research Center 5127, Department of Pediatrics, 530 45th St., Pittsburgh, Pennsylvania 15224, USA, Phone: 412-692-5303,
| | - Dennis Kostka
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Department of Computational & Systems Biology and Pittsburgh Center for Evolutionary Biology and Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Co-Corresponding authors:Dr. Dennis Kostka, Rangos Research Center 8117, Department of Developmental Biology, 530 45th St., Pittsburgh, Pennsylvania 15224, USA, Phone: 412-692-9905, ; Dr. Jacqueline Ho, Rangos Research Center 5127, Department of Pediatrics, 530 45th St., Pittsburgh, Pennsylvania 15224, USA, Phone: 412-692-5303,
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Elevated endogenous GDNF induces altered dopamine signalling in mice and correlates with clinical severity in schizophrenia. Mol Psychiatry 2022; 27:3247-3261. [PMID: 35618883 PMCID: PMC9708553 DOI: 10.1038/s41380-022-01554-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 11/08/2022]
Abstract
Presynaptic increase in striatal dopamine is the primary dopaminergic abnormality in schizophrenia, but the underlying mechanisms are not understood. Here, we hypothesized that increased expression of endogenous GDNF could induce dopaminergic abnormalities that resemble those seen in schizophrenia. To test the impact of GDNF elevation, without inducing adverse effects caused by ectopic overexpression, we developed a novel in vivo approach to conditionally increase endogenous GDNF expression. We found that a 2-3-fold increase in endogenous GDNF in the brain was sufficient to induce molecular, cellular, and functional changes in dopamine signalling in the striatum and prefrontal cortex, including increased striatal presynaptic dopamine levels and reduction of dopamine in prefrontal cortex. Mechanistically, we identified adenosine A2a receptor (A2AR), a G-protein coupled receptor that modulates dopaminergic signalling, as a possible mediator of GDNF-driven dopaminergic abnormalities. We further showed that pharmacological inhibition of A2AR with istradefylline partially normalised striatal GDNF and striatal and cortical dopamine levels in mice. Lastly, we found that GDNF levels are increased in the cerebrospinal fluid of first episode psychosis patients, and in post-mortem striatum of schizophrenia patients. Our results reveal a possible contributor for increased striatal dopamine signalling in a subgroup of schizophrenia patients and suggest that GDNF-A2AR crosstalk may regulate dopamine function in a therapeutically targetable manner.
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27
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Dai L, Li J, Xie L, Wang W, Lu Y, Xie M, Huang J, Shen K, Yang H, Pei C, Zhao Y, Zhang W. A Biallelic Frameshift Mutation in Nephronectin Causes Bilateral Renal Agenesis in Humans. J Am Soc Nephrol 2021; 32:1871-1879. [PMID: 34049960 PMCID: PMC8455264 DOI: 10.1681/asn.2020121762] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/03/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Bilateral renal agenesis (BRA) is a lethal con genital anomaly caused by the failure of normal development of both kidneys early in embryonic development. Oligohydramnios on fetal ultrasonography reveals BRA. Although the exact causes are not clear, BRA is associated with mutations in many renal development genes. However, molecular diagnostics do not pick up many clinical patients. Nephronectin (NPNT) may be a candidate protein for widening diagnosis. It is essential in kidney development, and knockout of Npnt in mice frequently leads to kidney agenesis or hypoplasia. METHODS A consanguineous Han family experienced three cases of induced abortion in the second trimester of pregnancy, due to suspected BRA. Whole-exome sequencing (WES)-based homozygosity mapping detected underlying genetic factors, and a knock-in mouse model confirmed the renal agenesis phenotype. RESULTS WES and evaluation of homozygous regions in II:3 and II:4 revealed a pathologic homozygous frameshift variant in NPNT (NM_001184690:exon8:c.777dup/p.Lys260*), which leads to a premature stop in the next codon. The truncated NPNT protein exhibited decreased expression, as confirmed in vivo by the overexpression of WT and mutated NPNT. A knock-in mouse model homozygous for the detected Npnt mutation replicated the BRA phenotype. CONCLUSIONS A biallelic loss-of-function NPNT mutation causing an autosomal recessive form of BRA in humans was confirmed by the corresponding phenotype of knock-in mice. Our results identify a novel genetic cause of BRA, revealing a new target for genetic diagnosis, prenatal diagnosis, and preimplantation diagnosis for families with BRA.
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Affiliation(s)
- Lei Dai
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
| | - Jingzhi Li
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
| | - Liangqun Xie
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
| | - Weinan Wang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Yang Lu
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
| | - Mingkun Xie
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
| | - Jingrui Huang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Kuifang Shen
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Hui Yang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Chenlin Pei
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Yanhua Zhao
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Weishe Zhang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
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Uesaka T, Okamoto M, Nagashimada M, Tsuda Y, Kihara M, Kiyonari H, Enomoto H. Enhanced enteric neurogenesis by Schwann cell precursors in mouse models of Hirschsprung disease. Glia 2021; 69:2575-2590. [PMID: 34272903 DOI: 10.1002/glia.24059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 04/21/2021] [Accepted: 07/05/2021] [Indexed: 12/31/2022]
Abstract
Hirschsprung disease (HSCR) is characterized by congenital absence of enteric neurons in distal portions of the gut. Although recent studies identified Schwann cell precursors (SCPs) as a novel cellular source of enteric neurons, it is unknown how SCPs contribute to the disease phenotype of HSCR. Using Schwann cell-specific genetic labeling, we investigated SCP-derived neurogenesis in two mouse models of HSCR; Sox10 haploinsufficient mice exhibiting distal colonic aganglionosis and Ednrb knockout mice showing small intestinal aganglionosis. We also examined Ret dependency in SCP-derived neurogenesis using mice displaying intestinal aganglionosis in which Ret expression was conditionally removed in the Schwann cell lineage. SCP-derived neurons were abundant in the transition zone lying between the ganglionated and aganglionic segments, although SCP-derived neurogenesis was scarce in the aganglionic region. In the transition zone, SCPs mainly gave rise to nitrergic neurons that are rarely observed in the SCP-derived neurons under the normal condition. Enhanced SCP-derived neurogenesis was also detected in the transition zone of mice lacking RET expression in the Schwann cell lineage. Increased SCP-derived neurogenesis in the transition zone suggests that reduction in the vagal neural crest-derived enteric neurons promotes SCP-derived neurogenesis. SCPs may adopt a neuronal subtype by responding to changes in the gut environment. Robust SCP-derived neurogenesis can occur in a Ret-independent manner, which suggests that SCPs are a cellular source to compensate for missing enteric neurons in HSCR.
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Affiliation(s)
- Toshihiro Uesaka
- Division for Neural Differentiation and Regeneration, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Mitsumasa Okamoto
- Division for Neural Differentiation and Regeneration, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.,Department of Pediatric Surgery, Japanese Red Cross Society, Himeji Hospital, Himeji, Hyogo, Japan
| | - Mayumi Nagashimada
- Division for Neural Differentiation and Regeneration, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.,Division of Health Science, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Yoshihiro Tsuda
- Division for Neural Differentiation and Regeneration, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Miho Kihara
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Hyogo, Japan
| | - Hiroshi Kiyonari
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Hyogo, Japan
| | - Hideki Enomoto
- Division for Neural Differentiation and Regeneration, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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29
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de Barros Sene L, Lamana GL, Schwambach Vieira A, Scarano WR, Gontijo JAR, Boer PA. Gestational Low Protein Diet Modulation on miRNA Transcriptome and Its Target During Fetal and Breastfeeding Nephrogenesis. Front Physiol 2021; 12:648056. [PMID: 34239447 PMCID: PMC8258388 DOI: 10.3389/fphys.2021.648056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 04/22/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The kidney ontogenesis is the most structurally affected by gestational protein restriction, reducing 28% of their functional units. The reduced nephron number is predictive of hypertension and cardiovascular dysfunctions that are generally observed in the adult age of most fetal programming models. We demonstrate miRNAs and predict molecular pathway changes associated with reduced reciprocal interaction between metanephros cap (CM) and ureter bud (UB) and a 28% decreased nephron stem cells in the 17 gestational days (17GD) low protein (LP) intake male fetal kidney. Here, we evaluated the same miRNAs and predicted targets in the kidneys of 21GD and at 7 days of life (7DL) LP offspring to elucidate the molecular modulations during nephrogenesis. METHODS Pregnant Wistar rats were allocated into two groups: NP (regular protein diet- 17%) or LP (diet-6%). miRNA transcriptome sequencing (miRNA-Seq) was performed on the MiSeq platform from 21GD and 7DL male offspring kidneys using previously described methods. Among the top 10 dysfunctional regulated miRNAs, we validated 7 related to proliferation, differentiation, and apoptosis processes and investigated predicted target genes and proteins by RT-qPCR and immunohistochemistry. RESULTS In 21GD, LP fetuses were identified alongside 21 differently expressed miRNAs, of which 12 were upregulated and 9 downregulated compared to age-matched NP offspring. In 7-DL LP offspring, the differentially expressed miRNAs were counted to be 74, of which 46 were upregulated and 28 downregulated. The curve from 17-GD to 7-DL shows that mTOR was fundamental in reducing the number of nephrons in fetal kidneys where the mothers were subjected to a protein restriction. IGF1 and TGFβ curves also seemed to present the same mTOR pattern and were modulated by miRNAs 181a-5p, 181a-3p, and 199a-5p. The miRNA 181c-3p modulated SIX2 and Notch1 reduction in 7-DL but not in terms of the enhanced expression of both in the 21-GD, suggesting the participation of an additional regulator. We found enhanced Bax in 21-GD; it was regulated by miRNA 298-5p, and Bcl2 and Caspase-3 were controlled by miRNA (by 7a-5p and not by the predicted 181a-5p). The miRNA 144-3p regulated BCL6, which was enhanced, as well as Zeb 1 and 2 induced by BCL6. These results revealed that in 21GD, the compensatory mechanisms in LP kidneys led to the activation of UB ramification. Besides, an increase of 32% in the CM stem cells and a possible cell cycle halt of renal progenitor cells, which remaining undifferentiated, were observed. In the 7DL, much more altered miRNA expression was found in LP kidneys, and this was probably due to an increased maternal diet content. Additionally, we verified the activation of pathways related to differentiation and consumption of progenitor cells.
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Affiliation(s)
- Letícia de Barros Sene
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - Gabriela Leme Lamana
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, FCM, Campinas, Brazil
| | - Andre Schwambach Vieira
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Wellerson Rodrigo Scarano
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - José Antônio Rocha Gontijo
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, FCM, Campinas, Brazil
| | - Patrícia Aline Boer
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, FCM, Campinas, Brazil
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Generation of patterned kidney organoids that recapitulate the adult kidney collecting duct system from expandable ureteric bud progenitors. Nat Commun 2021; 12:3641. [PMID: 34131121 PMCID: PMC8206157 DOI: 10.1038/s41467-021-23911-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 05/21/2021] [Indexed: 01/19/2023] Open
Abstract
Current kidney organoids model development and diseases of the nephron but not the contiguous epithelial network of the kidney’s collecting duct (CD) system. Here, we report the generation of an expandable, 3D branching ureteric bud (UB) organoid culture model that can be derived from primary UB progenitors from mouse and human fetal kidneys, or generated de novo from human pluripotent stem cells. In chemically-defined culture conditions, UB organoids generate CD organoids, with differentiated principal and intercalated cells adopting spatial assemblies reflective of the adult kidney’s collecting system. Aggregating 3D-cultured nephron progenitor cells with UB organoids in vitro results in a reiterative process of branching morphogenesis and nephron induction, similar to kidney development. Applying an efficient gene editing strategy to remove RET activity, we demonstrate genetically modified UB organoids can model congenital anomalies of kidney and urinary tract. Taken together, these platforms will facilitate an enhanced understanding of development, regeneration and diseases of the mammalian collecting duct system. Here, the authors model the collecting duct system in kidneys by taking ureteric bud (UB) progenitor cells from both mouse and human primary tissues, as well as from hESC and hiPSC to generate organoids, which can model congenital anomalies of the kidney and urinary tract.
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Lang C, Conrad L, Iber D. Organ-Specific Branching Morphogenesis. Front Cell Dev Biol 2021; 9:671402. [PMID: 34150767 PMCID: PMC8212048 DOI: 10.3389/fcell.2021.671402] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/06/2021] [Indexed: 01/09/2023] Open
Abstract
A common developmental process, called branching morphogenesis, generates the epithelial trees in a variety of organs, including the lungs, kidneys, and glands. How branching morphogenesis can create epithelial architectures of very different shapes and functions remains elusive. In this review, we compare branching morphogenesis and its regulation in lungs and kidneys and discuss the role of signaling pathways, the mesenchyme, the extracellular matrix, and the cytoskeleton as potential organ-specific determinants of branch position, orientation, and shape. Identifying the determinants of branch and organ shape and their adaptation in different organs may reveal how a highly conserved developmental process can be adapted to different structural and functional frameworks and should provide important insights into epithelial morphogenesis and developmental disorders.
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Affiliation(s)
- Christine Lang
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Lisa Conrad
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
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Abstract
The enteric nervous system (ENS) is the largest division of the peripheral nervous system and closely resembles components and functions of the central nervous system. Although the central role of the ENS in congenital enteric neuropathic disorders, including Hirschsprung disease and inflammatory and functional bowel diseases, is well acknowledged, its role in systemic diseases is less understood. Evidence of a disordered ENS has accumulated in neurodegenerative diseases ranging from amyotrophic lateral sclerosis, Alzheimer disease and multiple sclerosis to Parkinson disease as well as neurodevelopmental disorders such as autism. The ENS is a key modulator of gut barrier function and a regulator of enteric homeostasis. A 'leaky gut' represents the gateway for bacterial and toxin translocation that might initiate downstream processes. Data indicate that changes in the gut microbiome acting in concert with the individual genetic background can modify the ENS, central nervous system and the immune system, impair barrier function, and contribute to various disorders such as irritable bowel syndrome, inflammatory bowel disease or neurodegeneration. Here, we summarize the current knowledge on the role of the ENS in gastrointestinal and systemic diseases, highlighting its interaction with various key players involved in shaping the phenotypes. Finally, current flaws and pitfalls related to ENS research in addition to future perspectives are also addressed.
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Conrad L, Runser SVM, Fernando Gómez H, Lang CM, Dumond MS, Sapala A, Schaumann L, Michos O, Vetter R, Iber D. The biomechanical basis of biased epithelial tube elongation in lung and kidney development. Development 2021; 148:261770. [PMID: 33946098 PMCID: PMC8126414 DOI: 10.1242/dev.194209] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 03/16/2021] [Indexed: 01/16/2023]
Abstract
During lung development, epithelial branches expand preferentially in a longitudinal direction. This bias in outgrowth has been linked to a bias in cell shape and in the cell division plane. How this bias arises is unknown. Here, we show that biased epithelial outgrowth occurs independent of the surrounding mesenchyme, of preferential turnover of the extracellular matrix at the bud tips and of FGF signalling. There is also no evidence for actin-rich filopodia at the bud tips. Rather, we find epithelial tubes to be collapsed during early lung and kidney development, and we observe fluid flow in the narrow tubes. By simulating the measured fluid flow inside segmented narrow epithelial tubes, we show that the shear stress levels on the apical surface are sufficient to explain the reported bias in cell shape and outgrowth. We use a cell-based vertex model to confirm that apical shear forces, unlike constricting forces, can give rise to both the observed bias in cell shapes and tube elongation. We conclude that shear stress may be a more general driver of biased tube elongation beyond its established role in angiogenesis. This article has an associated 'The people behind the papers' interview.
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Affiliation(s)
- Lisa Conrad
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Steve Vincent Maurice Runser
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Harold Fernando Gómez
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Christine Michaela Lang
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Mathilde Sabine Dumond
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Aleksandra Sapala
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Laura Schaumann
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Odyssé Michos
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Roman Vetter
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
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Packard A, Klein WH, Costantini F. Ret signaling in ureteric bud epithelial cells controls cell movements, cell clustering and bud formation. Development 2021; 148:261695. [PMID: 33914865 DOI: 10.1242/dev.199386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/31/2021] [Indexed: 11/20/2022]
Abstract
Ret signaling promotes branching morphogenesis during kidney development, but the underlying cellular mechanisms remain unclear. While Ret-expressing progenitor cells proliferate at the ureteric bud tips, some of these cells exit the tips to generate the elongating collecting ducts, and in the process turn off Ret. Genetic ablation of Ret in tip cells promotes their exit, suggesting that Ret is required for cell rearrangements that maintain the tip compartments. Here, we examine the behaviors of ureteric bud cells that are genetically forced to maintain Ret expression. These cells move to the nascent tips, and remain there during many cycles of branching; this tip-seeking behavior may require positional signals from the mesenchyme, as it occurs in whole kidneys but not in epithelial ureteric bud organoids. In organoids, cells forced to express Ret display a striking self-organizing behavior, attracting each other to form dense clusters within the epithelium, which then evaginate to form new buds. The ability of forced Ret expression to promote these events suggests that similar Ret-dependent cell behaviors play an important role in normal branching morphogenesis.
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Affiliation(s)
- Adam Packard
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA
| | - William H Klein
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA.,Department of Systems Biology, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Frank Costantini
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA
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35
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Abstract
The kidney plays an integral role in filtering the blood-removing metabolic by-products from the body and regulating blood pressure. This requires the establishment of large numbers of efficient and specialized blood filtering units (nephrons) that incorporate a system for vascular exchange and nutrient reabsorption as well as a collecting duct system to remove waste (urine) from the body. Kidney development is a dynamic process which generates these structures through a delicately balanced program of self-renewal and commitment of nephron progenitor cells that inhabit a constantly evolving cellular niche at the tips of a branching ureteric "tree." The former cells build the nephrons and the latter the collecting duct system. Maintaining these processes across fetal development is critical for establishing the normal "endowment" of nephrons in the kidney and perturbations to this process are associated both with mutations in integral genes and with alterations to the fetal environment.
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Affiliation(s)
- Ian M Smyth
- Department of Anatomy and Developmental Biology, Department of Biochemistry and Molecular Biology, Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia.
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36
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Li H, Hohenstein P, Kuure S. Embryonic Kidney Development, Stem Cells and the Origin of Wilms Tumor. Genes (Basel) 2021; 12:genes12020318. [PMID: 33672414 PMCID: PMC7926385 DOI: 10.3390/genes12020318] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 12/23/2022] Open
Abstract
The adult mammalian kidney is a poorly regenerating organ that lacks the stem cells that could replenish functional homeostasis similarly to, e.g., skin or the hematopoietic system. Unlike a mature kidney, the embryonic kidney hosts at least three types of lineage-specific stem cells that give rise to (a) a ureter and collecting duct system, (b) nephrons, and (c) mesangial cells together with connective tissue of the stroma. Extensive interest has been raised towards these embryonic progenitor cells, which are normally lost before birth in humans but remain part of the undifferentiated nephrogenic rests in the pediatric renal cancer Wilms tumor. Here, we discuss the current understanding of kidney-specific embryonic progenitor regulation in the innate environment of the developing kidney and the types of disruptions in their balanced regulation that lead to the formation of Wilms tumor.
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Affiliation(s)
- Hao Li
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, FIN-00014 Helsinki, Finland;
| | - Peter Hohenstein
- Department of Human Genetics, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
| | - Satu Kuure
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, FIN-00014 Helsinki, Finland;
- GM-Unit, Laboratory Animal Center, Helsinki Institute of Life Science, University of Helsinki, FIN-00014 Helsinki, Finland
- Correspondence: ; Tel.: +358-2941-59395
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37
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Marshall P, Garton DR, Taira T, Võikar V, Vilenius C, Kulesskaya N, Rivera C, Andressoo JO. Elevated expression of endogenous glial cell line-derived neurotrophic factor impairs spatial memory performance and raises inhibitory tone in the hippocampus. Eur J Neurosci 2021; 53:2469-2482. [PMID: 33481269 DOI: 10.1111/ejn.15126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 01/07/2021] [Accepted: 01/19/2021] [Indexed: 01/16/2023]
Abstract
Parvalbumin-positive interneurons (PV+) are a key component of inhibitory networks in the brain and are known to modulate memory and learning by shaping network activity. The mechanisms of PV+ neuron generation and maintenance are not fully understood, yet current evidence suggests that signalling via the glial cell line-derived neurotrophic factor (GDNF) receptor GFRα1 positively modulates the migration and differentiation of PV+ interneurons in the cortex. Whether GDNF also regulates PV+ cells in the hippocampus is currently unknown. In this study, we utilized a Gdnf "hypermorph" mouse model where GDNF is overexpressed from the native gene locus, providing greatly increased spatial and temporal specificity of protein expression over established models of ectopic expression. Gdnfwt/hyper mice demonstrated impairments in long-term memory performance in the Morris water maze test and an increase in inhibitory tone in the hippocampus measured electrophysiologically in acute brain slice preparations. Increased PV+ cell number was confirmed immunohistochemically in the hippocampus and in discrete cortical areas and an increase in epileptic seizure threshold was observed in vivo. The data consolidate prior evidence for the actions of GDNF as a regulator of PV+ cell development in the cortex and demonstrate functional effects upon network excitability via modulation of functional GABAergic signalling and under epileptic challenge.
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Affiliation(s)
- Pepin Marshall
- HiLIFE Neuroscience Centre, University of Helsinki, Helsinki, Finland
| | - Daniel R Garton
- Department of Pharmacology, Faculty of Medicine & Helsinki Institute of Life Science (HiLIFE) Helsinki, University of Helsinki, Helsinki, Finland
| | - Tomi Taira
- HiLIFE Neuroscience Centre, University of Helsinki, Helsinki, Finland.,Veterinary Biosciences, University of Helsinki, Helsinki, Finland
| | - Vootele Võikar
- HiLIFE Neuroscience Centre, University of Helsinki, Helsinki, Finland
| | - Carolina Vilenius
- HiLIFE Neuroscience Centre, University of Helsinki, Helsinki, Finland
| | | | - Claudio Rivera
- HiLIFE Neuroscience Centre, University of Helsinki, Helsinki, Finland.,Institut de Neurobiologie de la Méditerranée, INMED UMR901, Marseille, France
| | - Jaan-Olle Andressoo
- Department of Pharmacology, Faculty of Medicine & Helsinki Institute of Life Science (HiLIFE) Helsinki, University of Helsinki, Helsinki, Finland.,Karolinska Institute, Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society (NVS), Stockholm, Sweden
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38
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Blennerhassett MG, Lourenssen SR. Obligatory Activation of SRC and JNK by GDNF for Survival and Axonal Outgrowth of Postnatal Intestinal Neurons. Cell Mol Neurobiol 2021; 42:1569-1583. [PMID: 33544273 DOI: 10.1007/s10571-021-01048-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 01/22/2021] [Indexed: 01/20/2023]
Abstract
The neurotrophin GDNF acts through its co-receptor RET to direct embryonic development of the intestinal nervous system. Since this continues in the post-natal intestine, co-cultures of rat enteric neurons and intestinal smooth muscle cells were used to examine how receptor activation mediates neuronal survival or axonal extension. GDNF-mediated activation of SRC was essential for neuronal survival and axon outgrowth and activated the major downstream signaling pathways. Selective inhibition of individual pathways had little effect on survival but JNK activation was required for axonal maintenance, extension or regeneration. This was localized to axonal endings and retrograde transport was needed for central JUN activation and subsequent axon extension. Collectively, GDNF signaling supports neuronal survival via SRC activation with multiple downstream events, with JNK signaling mediating structural plasticity. These pathways may limit neuron death and drive subsequent regeneration during challenges in vivo such as intestinal inflammation, where supportive strategies could preserve intestinal function.
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Affiliation(s)
- M G Blennerhassett
- Gastrointestinal Diseases Research Unit and Queen's University, Kingston, ON, K7L 2V7, Canada.
- Department of Medicine, GIDRU Wing, Kingston General Hospital, Queen's University, Kingston, ON, K7L2V7, Canada.
| | - S R Lourenssen
- Gastrointestinal Diseases Research Unit and Queen's University, Kingston, ON, K7L 2V7, Canada
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39
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Wang G, Wang H, Zhang L, Guo F, Wu X, Liu Y. MiR-195-5p inhibits proliferation and invasion of nerve cells in Hirschsprung disease by targeting GFRA4. Mol Cell Biochem 2021; 476:2061-2073. [PMID: 33515383 DOI: 10.1007/s11010-021-04055-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/11/2021] [Indexed: 12/18/2022]
Abstract
Studies have reported that miR-195-5p plays a role in the Hirschsprung disease (HSCR). Our previous work found GDNF family receptor alpha 4 (GFRA4) is also associated with HSCR. In this study, we focused on whether miR-195-5p induces the absence of enteric neurons and enteric neural crest in HSCR by regulating GFRA4. The expression levels of GFRA4 and miR-195-5p in colon tissues were evaluated by real-time PCR (RT-PCR) assay. We overexpressed GFRA4 or miR-195-5p in SH-SY5Y cells, the cell proliferation, cell cycle, apoptosis and invasion were subsequently investigated by CCK-8 assay, EdU staining, Flow cytometry analysis and Transwell assay, respectively. We also established the xenograft model to detect the effect of miR-195-5p on tumor growth and GFRA4 and p-RET expressions. GFRA4 expression was significantly downregulated in the HSCR colon tissues when compared with that in the control tissues. Overexpression of GFRA4 significantly promoted proliferation, invasion and cell cycle arrest, and inhibited apoptosis of SH-SY5Y cells. We also proved that GFRA4 is a direct target of miR-195-5p, and miR-195-5p inhibited proliferation, invasion, cell cycle arrest and differentiation, and accelerated apoptosis in SH-SY5Y cells which can be reversed by GFRA4 overexpression. Furthermore, we demonstrated that miR-195-5p suppressed tumor growth, and observably decreased GFRA4 and p-RET expressions. Our findings suggest that miR-195-5p plays an important role in the pathogenesis of HSCR. MiR-195-5p inhibited proliferation, invasion and cell cycle arrest, and accelerated apoptosis of nerve cells by targeting GFRA4.
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Affiliation(s)
- Gang Wang
- Department of Pediatric Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan, 250021, Shandong, China.
| | - Hefeng Wang
- Department of Pediatric Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan, 250021, Shandong, China
| | - Lijuan Zhang
- Department of Pediatric Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan, 250021, Shandong, China
| | - Feng Guo
- Department of Pediatric Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan, 250021, Shandong, China
| | - Xiangyu Wu
- Department of Pediatric Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan, 250021, Shandong, China
| | - Yang Liu
- Department of Pediatric Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan, 250021, Shandong, China
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40
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Wu Q, Zhao J, Zheng Y, Xie X, He Q, Zhu Y, Wang N, Huang L, Lu L, Hu T, Zeng J, Xia H, Zhang Y, Zhong W. Associations between common genetic variants in microRNAs and Hirschsprung disease susceptibility in Southern Chinese children. J Gene Med 2021; 23:e3301. [PMID: 33294994 PMCID: PMC7900950 DOI: 10.1002/jgm.3301] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction Hirschsprung disease (HSCR), characterized by the defective migration of enteric neural crest cells, is a severe congenital tract disease in infants. Its etiology is not clear at present, although a genetic component plays an important role in its etiology. Many studies focused on the polymorphisms of microRNA (miRNA) in several disease progressions have been reported, including HSCR. However, the findings remain inconclusive. The present study aimed to explore the association of genetic variants in miRNAs and HSCR susceptibility in Southern Chinese children. Methods Five single nucleotide polymorphisms (SNPs) (miR‐146A rs2910164, miR‐4318 rs8096901, miR‐3142 rs2431697, miR‐3142 rs2431097 and miR‐3142 rs5705329) were included to be genotyped in the stratified analysis through the Mass ARRAY iPLEX Gold system (Sequenom, San Diego, CA, USA) conducted on all the samples, comprising 1470 cases and 1473 controls. After quality control, the minor allele frequency was compared in cases and controls to analyze the association between SNPs and HSCR using PLINK 1.9 (https://www.cog‐genomics.org/plink) and multiple heritability models were tested (additive, recessive and dominant models). Results Our results indicated that miR‐4318 rs8096901 polymorphisms were associated with HSCR susceptibility in Southern Chinese children, especially in short‐segment HSCR (S‐HSCR) patients after stratified analysis. Conclusions In summary, we report that miR‐4318 rs8096901 was associated with HSCR, especially in SHSCR patients.
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Affiliation(s)
- Qi Wu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jinglu Zhao
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yi Zheng
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiaoli Xie
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qiuming He
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yun Zhu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ning Wang
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lihua Huang
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lifeng Lu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Tuqun Hu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jixiao Zeng
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yan Zhang
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wei Zhong
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
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41
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Kameneva P, Kastriti ME, Adameyko I. Neuronal lineages derived from the nerve-associated Schwann cell precursors. Cell Mol Life Sci 2021; 78:513-529. [PMID: 32748156 PMCID: PMC7873084 DOI: 10.1007/s00018-020-03609-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/18/2020] [Accepted: 07/22/2020] [Indexed: 12/26/2022]
Abstract
For a long time, neurogenic placodes and migratory neural crest cells were considered the immediate sources building neurons of peripheral nervous system. Recently, a number of discoveries revealed the existence of another progenitor type-a nerve-associated multipotent Schwann cell precursors (SCPs) building enteric and parasympathetic neurons as well as neuroendocrine chromaffin cells. SCPs are neural crest-derived and are similar to the crest cells by their markers and differentiation potential. Such similarities, but also considerable differences, raise many questions pertaining to the medical side, fundamental developmental biology and evolution. Here, we discuss the genesis of Schwann cell precursors, their role in building peripheral neural structures and ponder on their role in the origin in congenial diseases associated with peripheral nervous systems.
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Affiliation(s)
- Polina Kameneva
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, 171 77, Sweden
| | - Maria Eleni Kastriti
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, 171 77, Sweden
- Department of Molecular Neurosciences, Center for Brain Research, Medical University Vienna, Vienna, 1090, Austria
| | - Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, 171 77, Sweden.
- Department of Molecular Neurosciences, Center for Brain Research, Medical University Vienna, Vienna, 1090, Austria.
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42
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Arora V, Khan S, W. El-Hattab A, Dua Puri R, Rocha ME, Merdzanic R, Paknia O, Beetz C, Rolfs A, Bertoli-Avella AM, Bauer P, Verma IC. Biallelic Pathogenic GFRA1 Variants Cause Autosomal Recessive Bilateral Renal Agenesis. J Am Soc Nephrol 2021; 32:223-228. [PMID: 33020172 PMCID: PMC7894660 DOI: 10.1681/asn.2020040478] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/30/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Congenital anomalies of the kidney and urinary tract (CAKUT) are one of the most common malformations identified in the fetal stage. Bilateral renal agenesis (BRA) represents the most severe and fatal form of CAKUT. Only three genes have been confirmed to have a causal role in humans (ITGA8, GREB1L, and FGF20). METHODS Genome sequencing within a diagnostic setting and combined data repository analysis identified a novel gene. RESULTS Two patients presented with BRA, detected during the prenatal period, without additional recognizable malformations. They had parental consanguinity and similarly affected, deceased siblings, suggesting autosomal recessive inheritance. Evaluation of homozygous regions in patient 1 identified a novel, nonsense variant in GFRA1 (NM_001348097.1:c.676C>T, p.[Arg226*]). We identified 184 patients in our repository with renal agenesis and analyzed their exome/genome data. Of these 184 samples, 36 were from patients who presented with isolated renal agenesis. Two of them had loss-of-function variants in GFRA1. The second patient was homozygous for a frameshift variant (NM_001348097.1:c.1294delA, p.[Thr432Profs*13]). The GFRA1 gene encodes a receptor on the Wolffian duct that regulates ureteric bud outgrowth in the development of a functional renal system, and has a putative role in the pathogenesis of Hirschsprung disease. CONCLUSIONS These findings strongly support the causal role of GFRA1-inactivating variants for an autosomal recessive, nonsyndromic form of BRA. This knowledge will enable early genetic diagnosis and better genetic counseling for families with BRA.
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Affiliation(s)
- Veronica Arora
- Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India
| | | | - Ayman W. El-Hattab
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ratna Dua Puri
- Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India
| | | | | | | | | | - Arndt Rolfs
- CENTOGENE GmbH, Rostock, Germany
- University of Rostock, Rostock, Germany
| | | | | | - Ishwar C. Verma
- Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India
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43
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Pawolski V, Schmidt MHH. Neuron-Glia Interaction in the Developing and Adult Enteric Nervous System. Cells 2020; 10:E47. [PMID: 33396231 PMCID: PMC7823798 DOI: 10.3390/cells10010047] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/17/2020] [Accepted: 12/29/2020] [Indexed: 12/31/2022] Open
Abstract
The enteric nervous system (ENS) constitutes the largest part of the peripheral nervous system. In recent years, ENS development and its neurogenetic capacity in homeostasis and allostasishave gained increasing attention. Developmentally, the neural precursors of the ENS are mainly derived from vagal and sacral neural crest cell portions. Furthermore, Schwann cell precursors, as well as endodermal pancreatic progenitors, participate in ENS formation. Neural precursorsenherite three subpopulations: a bipotent neuron-glia, a neuronal-fated and a glial-fated subpopulation. Typically, enteric neural precursors migrate along the entire bowel to the anal end, chemoattracted by glial cell-derived neurotrophic factor (GDNF) and endothelin 3 (EDN3) molecules. During migration, a fraction undergoes differentiation into neurons and glial cells. Differentiation is regulated by bone morphogenetic proteins (BMP), Hedgehog and Notch signalling. The fully formed adult ENS may react to injury and damage with neurogenesis and gliogenesis. Nevertheless, the origin of differentiating cells is currently under debate. Putative candidates are an embryonic-like enteric neural progenitor population, Schwann cell precursors and transdifferentiating glial cells. These cells can be isolated and propagated in culture as adult ENS progenitors and may be used for cell transplantation therapies for treating enteric aganglionosis in Chagas and Hirschsprung's diseases.
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Affiliation(s)
| | - Mirko H. H. Schmidt
- Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden School of Medicine, 01307 Dresden, Germany;
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44
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Gonzales J, Le Berre-Scoul C, Dariel A, Bréhéret P, Neunlist M, Boudin H. Semaphorin 3A controls enteric neuron connectivity and is inversely associated with synapsin 1 expression in Hirschsprung disease. Sci Rep 2020; 10:15119. [PMID: 32934297 PMCID: PMC7492427 DOI: 10.1038/s41598-020-71865-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 07/30/2020] [Indexed: 12/27/2022] Open
Abstract
Most of the gut functions are controlled by the enteric nervous system (ENS), a complex network of enteric neurons located throughout the wall of the gastrointestinal tract. The formation of ENS connectivity during the perinatal period critically underlies the establishment of gastrointestinal motility, but the factors involved in this maturation process remain poorly characterized. Here, we examined the role of Semaphorin 3A (Sema3A) on ENS maturation and its potential implication in Hirschsprung disease (HSCR), a developmental disorder of the ENS with impaired colonic motility. We found that Sema3A and its receptor Neuropilin 1 (NRP1) are expressed in the rat gut during the early postnatal period. At the cellular level, NRP1 is expressed by enteric neurons, where it is particularly enriched at growth areas of developing axons. Treatment of primary ENS cultures and gut explants with Sema3A restricts axon elongation and synapse formation. Comparison of the ganglionic colon of HSCR patients to the colon of patients with anorectal malformation shows reduced expression of the synaptic molecule synapsin 1 in HSCR, which is inversely correlated with Sema3A expression. Our study identifies Sema3A as a critical regulator of ENS connectivity and provides a link between altered ENS connectivity and HSCR.
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Affiliation(s)
- Jacques Gonzales
- Inserm UMR1235-TENS, University of Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, 1 rue Gaston Veil, 44035, Nantes, France
| | - Catherine Le Berre-Scoul
- Inserm UMR1235-TENS, University of Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, 1 rue Gaston Veil, 44035, Nantes, France
| | - Anne Dariel
- Inserm UMR1235-TENS, University of Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, 1 rue Gaston Veil, 44035, Nantes, France.,Pediatric Surgery Department, Hôpital Timone-Enfants, Assistance Publique des Hôpitaux de Marseille, Marseille, France
| | - Paul Bréhéret
- Inserm UMR1235-TENS, University of Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, 1 rue Gaston Veil, 44035, Nantes, France
| | - Michel Neunlist
- Inserm UMR1235-TENS, University of Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, 1 rue Gaston Veil, 44035, Nantes, France
| | - Hélène Boudin
- Inserm UMR1235-TENS, University of Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, 1 rue Gaston Veil, 44035, Nantes, France.
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45
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Abstract
Investigations of the cellular and molecular mechanisms that mediate the development of the autonomic nervous system have identified critical genes and signaling pathways that, when disrupted, cause disorders of the autonomic nervous system. This review summarizes our current understanding of how the autonomic nervous system emerges from the organized spatial and temporal patterning of precursor cell migration, proliferation, communication, and differentiation, and discusses potential clinical implications for developmental disorders of the autonomic nervous system, including familial dysautonomia, Hirschsprung disease, Rett syndrome, and congenital central hypoventilation syndrome.
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Affiliation(s)
- Frances Lefcort
- Department of Cell Biology and Neuroscience, Montana State University, Bozeman, Montana
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46
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GDNF synthesis, signaling, and retrograde transport in motor neurons. Cell Tissue Res 2020; 382:47-56. [PMID: 32897420 PMCID: PMC7529617 DOI: 10.1007/s00441-020-03287-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023]
Abstract
Glial cell line–derived neurotrophic factor (GDNF) is a 134 amino acid protein belonging in the GDNF family ligands (GFLs). GDNF was originally isolated from rat glial cell lines and identified as a neurotrophic factor with the ability to promote dopamine uptake within midbrain dopaminergic neurons. Since its discovery, the potential neuroprotective effects of GDNF have been researched extensively, and the effect of GDNF on motor neurons will be discussed herein. Similar to other members of the TGF-β superfamily, GDNF is first synthesized as a precursor protein (pro-GDNF). After a series of protein cleavage and processing, the 211 amino acid pro-GDNF is finally converted into the active and mature form of GDNF. GDNF has the ability to trigger receptor tyrosine kinase RET phosphorylation, whose downstream effects have been found to promote neuronal health and survival. The binding of GDNF to its receptors triggers several intracellular signaling pathways which play roles in promoting the development, survival, and maintenance of neuron-neuron and neuron-target tissue interactions. The synthesis and regulation of GDNF have been shown to be altered in many diseases, aging, exercise, and addiction. The neuroprotective effects of GDNF may be used to develop treatments and therapies to ameliorate neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS). In this review, we provide a detailed discussion of the general roles of GDNF and its production, delivery, secretion, and neuroprotective effects on motor neurons within the mammalian neuromuscular system.
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47
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Conway JA, Ince S, Black S, Kramer ER. GDNF/RET signaling in dopamine neurons in vivo. Cell Tissue Res 2020; 382:135-146. [PMID: 32870383 DOI: 10.1007/s00441-020-03268-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/24/2020] [Indexed: 12/15/2022]
Abstract
The glial cell line-derived neurotrophic factor (GDNF) and its canonical receptor Ret can signal both in tandem and separately to exert many vital functions in the midbrain dopamine system. It is known that Ret has effects on maintenance, physiology, protection and regeneration in the midbrain dopamine system, with the physiological functions of GDNF still somewhat unclear. Notwithstanding, Ret ligands, such as GDNF, are considered as promising candidates for neuroprotection and/or regeneration in Parkinson's disease, although data from clinical trials are so far inconclusive. In this review, we discuss the current knowledge of GDNF/Ret signaling in the dopamine system in vivo as well as crosstalk with pathology-associated proteins and their signaling in mammals.
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Affiliation(s)
- James A Conway
- Peninsula Medical School, Institute of Translational and Stratified Medicine, Faculty of Health, University of Plymouth, Plymouth, UK
| | - Selvi Ince
- Peninsula Medical School, Institute of Translational and Stratified Medicine, Faculty of Health, University of Plymouth, Plymouth, UK
| | | | - Edgar R Kramer
- Peninsula Medical School, Institute of Translational and Stratified Medicine, Faculty of Health, University of Plymouth, Plymouth, UK.
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48
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Fuller S, Del Rivero J, Venzon D, Ilanchezhian M, Allen D, Folio L, Ling A, Widemann B, Fontana JR, Glod J. Pulmonary Function in Patients With Multiple Endocrine Neoplasia 2B. J Clin Endocrinol Metab 2020; 105:dgaa296. [PMID: 32448901 PMCID: PMC7365699 DOI: 10.1210/clinem/dgaa296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/19/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT Multiple endocrine neoplasia type 2B (MEN2B) is a rare cancer predisposition syndrome resulting from an autosomal-dominant germline mutation of the RET proto-oncogene. No prior studies have investigated pulmonary function in patients with MEN2B. OBJECTIVE This study characterized the pulmonary function of patients with MEN2B. DESIGN This is a retrospective analysis of pulmonary function tests (PFTs) and chest imaging of patients enrolled in the Natural History Study of Children and Adults with MEN2A or MEN2B at the National Institutes of Health. RESULTS Thirty-six patients with MEN2B (18 males, 18 females) were selected based on the availability of PFTs; 27 patients underwent at least 2 PFTs and imaging studies. Diffusion abnormalities were observed in 94% (33/35) of the patients, with 63% (22/35) having moderate to severe defects. A declining trend in diffusion capacity was seen over time, with an estimated slope of -2.9% per year (P = 0.0001). Restrictive and obstructive abnormalities were observed in 57% (20/35) and 39% (14/36), respectively. Computed tomography imaging revealed pulmonary thin-walled cavities (lung cysts) in 28% (9/32) of patients and metastatic lung disease in 34% (11/32) of patients; patients with metastatic lung lesions also tended to have thin-walled cavities (P = 0.035). CONCLUSIONS This study characterized pulmonary function within a MEN2B cohort. Diffusion, restrictive, and obstructive abnormalities were evident, and lung cysts were present in 28% of patients. Further research is required to determine the mechanism of the atypical pulmonary features observed in this cohort.
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Affiliation(s)
- Sarah Fuller
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Jaydira Del Rivero
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - David Venzon
- Biostatistics and Data Management Section, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Maran Ilanchezhian
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Deborah Allen
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Les Folio
- Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, Maryland
| | - Alexander Ling
- Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, Maryland
| | - Brigitte Widemann
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Joseph R Fontana
- Pulmonary Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - John Glod
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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Enterría-Morales D, Del Rey NLG, Blesa J, López-López I, Gallet S, Prévot V, López-Barneo J, d'Anglemont de Tassigny X. Molecular targets for endogenous glial cell line-derived neurotrophic factor modulation in striatal parvalbumin interneurons. Brain Commun 2020; 2:fcaa105. [PMID: 32954345 PMCID: PMC7472905 DOI: 10.1093/braincomms/fcaa105] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/05/2020] [Accepted: 06/23/2020] [Indexed: 12/20/2022] Open
Abstract
Administration of recombinant glial cell line-derived neurotrophic factor into the putamen has been tested in preclinical and clinical studies to evaluate its neuroprotective effects on the progressive dopaminergic neuronal degeneration that characterizes Parkinson’s disease. However, intracerebral glial cell line-derived neurotrophic factor infusion is a challenging therapeutic strategy, with numerous potential technical and medical limitations. Most of these limitations could be avoided if the production of endogenous glial cell line-derived neurotrophic factor could be increased. Glial cell line-derived neurotrophic factor is naturally produced in the striatum from where it exerts a trophic action on the nigrostriatal dopaminergic pathway. Most of striatal glial cell line-derived neurotrophic factor is synthesized by a subset of GABAergic interneurons characterized by the expression of parvalbumin. We sought to identify molecular targets specific to those neurons and which are putatively associated with glial cell line-derived neurotrophic factor synthesis. To this end, the transcriptomic differences between glial cell line-derived neurotrophic factor-positive parvalbumin neurons in the striatum and parvalbumin neurons located in the nearby cortex, which do not express glial cell line-derived neurotrophic factor, were analysed. Using mouse reporter models, we have defined the genomic signature of striatal parvalbumin interneurons obtained by fluorescence-activated cell sorting followed by microarray comparison. Short-listed genes were validated by additional histological and molecular analyses. These genes code for membrane receptors (Kit, Gpr83, Tacr1, Tacr3, Mc3r), cytosolic proteins (Pde3a, Crabp1, Rarres2, Moxd1) and a transcription factor (Lhx8). We also found the proto-oncogene cKit to be highly specific of parvalbumin interneurons in the non-human primate striatum, thus highlighting a conserved expression between species and suggesting that specific genes identified in mouse parvalbumin neurons could be putative targets in the human brain. Pharmacological stimulation of four G-protein-coupled receptors enriched in the striatal parvalbumin interneurons inhibited Gdnf expression presumably by decreasing cyclic adenosine monophosphate formation. Additional experiments with pharmacological modulators of adenylyl cyclase and protein kinase A indicated that this pathway is a relevant intracellular route to induce Gdnf gene activation. This preclinical study is an important step in the ongoing development of a specific pro-endo-glial cell line-derived neurotrophic factor pharmacological strategy to treat Parkinson’s disease.
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Affiliation(s)
- Daniel Enterría-Morales
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, CSIC, Universidad de Sevilla, Seville, Spain.,Departamento de Fisiología Médica y Biofísica, Facultad de Medicina, Universidad de Sevilla, Seville, Spain
| | | | - Javier Blesa
- HM CINAC, Hospital Universitario HM Puerta del Sur, Móstoles, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Ivette López-López
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, CSIC, Universidad de Sevilla, Seville, Spain
| | - Sarah Gallet
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, Laboratory of Development and Plasticity of the Neuroendocrine Brain, UMR-S 1172, Lille, France
| | - Vincent Prévot
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, Laboratory of Development and Plasticity of the Neuroendocrine Brain, UMR-S 1172, Lille, France
| | - José López-Barneo
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, CSIC, Universidad de Sevilla, Seville, Spain.,Departamento de Fisiología Médica y Biofísica, Facultad de Medicina, Universidad de Sevilla, Seville, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Xavier d'Anglemont de Tassigny
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, CSIC, Universidad de Sevilla, Seville, Spain.,Departamento de Fisiología Médica y Biofísica, Facultad de Medicina, Universidad de Sevilla, Seville, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
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50
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Kawai K, Takahashi M. Intracellular RET signaling pathways activated by GDNF. Cell Tissue Res 2020; 382:113-123. [PMID: 32816064 DOI: 10.1007/s00441-020-03262-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/20/2020] [Indexed: 01/16/2023]
Abstract
Activation of REarranged during Transfection (RET) proto-oncogene is responsible for various human cancers such as papillary and medullary thyroid carcinomas and non-small cell lung carcinomas. RET activation in these tumors is caused by point mutations or gene rearrangements, resulting in constitutive activation of RET tyrosine kinase. Physiologically, RET is activated by glial cell line-derived neurotrophic factor (GDNF) ligands that bind to coreceptor GDNF family receptor alphas (GFRαs), leading to RET dimerization. GDNF-GFRα1-RET signaling plays crucial roles in the development of the enteric nervous system, kidney and lower urinary tract as well as in spermatogenesis. Intracellular tyrosine phosphorylation in RET and recruitment of adaptor proteins to phosphotyrosines are essential for various biological functions. Significance of intracellular RET signaling pathways activated by GDNF is discussed and summarized in this review.
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Affiliation(s)
- Kumi Kawai
- Department of Pathology, Fujita Health University, 1-98 Kutsukake-cho, Dengakugakubo, Toyoake, 470-1192, Japan
| | - Masahide Takahashi
- International Center for Cell and Gene Therapy, Fujita Health University, 1-98 Kutsukake-cho, Dengakugakubo, Toyoake, 470-1192, Japan. .,Department of Pathology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
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