1
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Sandeep P, Sharma P, Luhach K, Dhiman N, Kharkwal H, Sharma B. Neuron navigators: A novel frontier with physiological and pathological implications. Mol Cell Neurosci 2023; 127:103905. [PMID: 37972804 DOI: 10.1016/j.mcn.2023.103905] [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: 09/12/2023] [Revised: 10/31/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023] Open
Abstract
Neuron navigators are microtubule plus-end tracking proteins containing basic and serine rich regions which are encoded by neuron navigator genes (NAVs). Neuron navigator proteins are essential for neurite outgrowth, neuronal migration, and overall neurodevelopment along with some other functions as well. The navigator proteins are substantially expressed in the developing brain and have been reported to be differentially expressed in various tissues at different ages. Over the years, the research has found neuron navigators to be implicated in a spectrum of pathological conditions such as developmental anomalies, neurodegenerative disorders, neuropathic pain, anxiety, cancers, and certain inflammatory conditions. The existing knowledge about neuron navigators remains sparse owing to their differential functions, undiscovered modulators, and unknown molecular mechanisms. Investigating the possible role of neuron navigators in various physiological processes and pathological conditions pose as a novel field that requires extensive research and might provide novel mechanistic insights and understanding of these aspects.
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Affiliation(s)
- Parth Sandeep
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Uttar Pradesh, Noida, India
| | - Poonam Sharma
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Uttar Pradesh, Noida, India
| | - Kanishk Luhach
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Uttar Pradesh, Noida, India
| | - Neerupma Dhiman
- Amity Institute of Pharmacy, Amity University, Uttar Pradesh, Noida, India
| | - Harsha Kharkwal
- Amity Natural and Herbal Product Research, Amity Institute of Phytochemistry and Phytomedicine, Amity University, Uttar Pradesh, India
| | - Bhupesh Sharma
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Uttar Pradesh, Noida, India.
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2
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Powers RM, Hevner RF, Halpain S. The Neuron Navigators: Structure, function, and evolutionary history. Front Mol Neurosci 2023; 15:1099554. [PMID: 36710926 PMCID: PMC9877351 DOI: 10.3389/fnmol.2022.1099554] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/19/2022] [Indexed: 01/13/2023] Open
Abstract
Neuron navigators (Navigators) are cytoskeletal-associated proteins important for neuron migration, neurite growth, and axon guidance, but they also function more widely in other tissues. Recent studies have revealed novel cellular functions of Navigators such as macropinocytosis, and have implicated Navigators in human disorders of axon growth. Navigators are present in most or all bilaterian animals: vertebrates have three Navigators (NAV1-3), Drosophila has one (Sickie), and Caenorhabditis elegans has one (Unc-53). Structurally, Navigators have conserved N- and C-terminal regions each containing specific domains. The N-terminal region contains a calponin homology (CH) domain and one or more SxIP motifs, thought to interact with the actin cytoskeleton and mediate localization to microtubule plus-end binding proteins, respectively. The C-terminal region contains two coiled-coil domains, followed by a AAA+ family nucleoside triphosphatase domain of unknown activity. The Navigators appear to have evolved by fusion of N- and C-terminal region homologs present in simpler organisms. Overall, Navigators participate in the cytoskeletal response to extracellular cues via microtubules and actin filaments, in conjunction with membrane trafficking. We propose that uptake of fluid-phase cues and nutrients and/or downregulation of cell surface receptors could represent general mechanisms that explain Navigator functions. Future studies developing new models, such as conditional knockout mice or human cerebral organoids may reveal new insights into Navigator function. Importantly, further biochemical studies are needed to define the activities of the Navigator AAA+ domain, and to study potential interactions among different Navigators and their binding partners.
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Affiliation(s)
- Regina M. Powers
- Department of Neurobiology, School of Biological Sciences, University of California, San Diego, La Jolla, CA, United States,Sanford Consortium for Regenerative Medicine, La Jolla, CA, United States
| | - Robert F. Hevner
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, United States,Department of Pathology, UC San Diego School of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Shelley Halpain
- Department of Neurobiology, School of Biological Sciences, University of California, San Diego, La Jolla, CA, United States,Sanford Consortium for Regenerative Medicine, La Jolla, CA, United States,*Correspondence: Shelley Halpain, ✉
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3
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Terrazas-Salgado L, Yáñez-Rivera B, Llera-Herrera R, García-Gasca A, Alvarado-Cruz I, Betancourt-Lozano M. Transcriptomic signaling in zebrafish ( Danio rerio) embryos exposed to environmental concentrations of glyphosate. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:775-785. [PMID: 36048159 DOI: 10.1080/03601234.2022.2115780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Glyphosate [N-(phosphonomethyl)glycine] is one of the most popular herbicides worldwide. Globally, the use of glyphosate is increasing, and its residues have been found in drinking water and food products. The data regarding the possible toxic effects of this herbicide are controversial. Therefore, the aim of this study was to evaluate the effects of glyphosate at environmental concentrations in zebrafish (Danio rerio) embryos. Embryos were exposed to 0, 1, 100, and 1,000 µg/L glyphosate for 96 h, and mortality, heart rate, and hatching rate were evaluated. After the experiment, RNA was extracted from the embryos for transcriptional analysis. No mortality was recorded, and exposure to 100 µg/L and 1,000 µg/L of glyphosate resulted in lower heart rates at 48 h. In addition, RNA-seq analysis revealed that glyphosate exposure induced subtle changes in gene transcription profiles. We found 30 differentially expressed genes; however, the highest glyphosate concentration (1,000 µg/L) induced the greatest number of differentially expressed genes involved in oocyte maturation, metabolic processes, histone deacetylation, and nervous system development.
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Affiliation(s)
- Luis Terrazas-Salgado
- Centro de Investigación en Alimentación y Desarrollo, A. C. Avenida Sábalo-Cerritos S/N, Mazatlán, Sinaloa, México
| | - Beatriz Yáñez-Rivera
- Centro de Investigación en Alimentación y Desarrollo, A. C. Avenida Sábalo-Cerritos S/N, Mazatlán, Sinaloa, México
- Consejo Nacional de Ciencia y Tecnología, Ciudad de México, México
| | - Raúl Llera-Herrera
- Instituto de Ciencias del Mar y Limnología - Unidad Académica Mazatlán, Universidad Nacional Autónoma de México, Mazatlán, Sinaloa, México
| | - Alejandra García-Gasca
- Centro de Investigación en Alimentación y Desarrollo, A. C. Avenida Sábalo-Cerritos S/N, Mazatlán, Sinaloa, México
| | - Isabel Alvarado-Cruz
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, Tucson, Arizona, USA
| | - Miguel Betancourt-Lozano
- Centro de Investigación en Alimentación y Desarrollo, A. C. Avenida Sábalo-Cerritos S/N, Mazatlán, Sinaloa, México
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4
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Lv F, Ge X, Qian P, Lu X, Liu D, Chen C. Neuron navigator 3 (NAV3) is required for heart development in zebrafish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:173-183. [PMID: 35039994 DOI: 10.1007/s10695-022-01049-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
As a tightly controlled biological process, cardiogenesis requires the specification and migration of a suite of cell types to form a particular three-dimensional configuration of the heart. Many genetic factors are involved in the formation and maturation of the heart, and any genetic mutations may result in severe cardiac failures. The neuron navigator (NAV) family consists of three vertebrate homologs (NAV1, NAV2, and NAV3) of the neural guidance molecule uncoordinated-53 (UNC-53) in Caenorhabditis elegans. Although they are recognized as neural regulators, their expressions are also detected in many organs, including the heart, kidney, and liver. However, the functions of NAVs, regardless of neural guidance, remain largely unexplored. In our study, we found that nav3 gene was expressed in the cardiac region of zebrafish embryos from 24 to 48 h post-fertilization (hpf) by means of in situ hybridization (ISH) assay. A CRISPR/Cas9-based genome editing method was utilized to delete the nav3 gene in zebrafish and loss of function of Nav3 resulted in a severe deficiency in its cardiac morphology and structure. The similar phenotypic defects of the knockout mutants could recur by nav3 morpholino injection and be rescued by nav3 mRNA injection. Dual-color fluorescence imaging of ventricle and atrium markers further confirmed the disruption of the heart development in nav3-deleted mutants. Although the heart rate was not affected by the deletion of nav3, the heartbeat intensity was decreased in the mutants. All these findings indicate that Nav3 was required for cardiogenesis in developing zebrafish embryos.
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Affiliation(s)
- Feng Lv
- Nantong Science and Technology College, School of Life Sciences, Nantong University, Nantong, China
| | - Xiaojuan Ge
- Nantong Science and Technology College, School of Life Sciences, Nantong University, Nantong, China
| | - Peipei Qian
- Medical School, Nantong University, Nantong, China
| | - Xiaofeng Lu
- Nantong Science and Technology College, School of Life Sciences, Nantong University, Nantong, China
| | - Dong Liu
- Nantong Science and Technology College, School of Life Sciences, Nantong University, Nantong, China.
| | - Changsheng Chen
- Nantong Science and Technology College, School of Life Sciences, Nantong University, Nantong, China.
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5
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Choe CP, Choi SY, Kee Y, Kim MJ, Kim SH, Lee Y, Park HC, Ro H. Transgenic fluorescent zebrafish lines that have revolutionized biomedical research. Lab Anim Res 2021; 37:26. [PMID: 34496973 PMCID: PMC8424172 DOI: 10.1186/s42826-021-00103-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/26/2021] [Indexed: 12/22/2022] Open
Abstract
Since its debut in the biomedical research fields in 1981, zebrafish have been used as a vertebrate model organism in more than 40,000 biomedical research studies. Especially useful are zebrafish lines expressing fluorescent proteins in a molecule, intracellular organelle, cell or tissue specific manner because they allow the visualization and tracking of molecules, intracellular organelles, cells or tissues of interest in real time and in vivo. In this review, we summarize representative transgenic fluorescent zebrafish lines that have revolutionized biomedical research on signal transduction, the craniofacial skeletal system, the hematopoietic system, the nervous system, the urogenital system, the digestive system and intracellular organelles.
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Affiliation(s)
- Chong Pyo Choe
- Division of Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea.,Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Seok-Yong Choi
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun, 58128, Republic of Korea
| | - Yun Kee
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, Chuncheon, 24341, Republic of Korea.
| | - Min Jung Kim
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Seok-Hyung Kim
- Department of Marine Life Sciences and Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - Yoonsung Lee
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Hae-Chul Park
- Department of Biomedical Sciences, College of Medicine, Korea University, Ansan, 15355, Republic of Korea
| | - Hyunju Ro
- Department of Biological Sciences, College of Bioscience and Biotechnology, Chungnam National University, Daejeon, 34134, Republic of Korea
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6
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Raza S, Jokl E, Pritchett J, Martin K, Su K, Simpson K, Birchall L, Mullan AF, Athwal VS, Doherty DT, Zeef L, Henderson NC, Kalra PA, Hanley NA, Piper Hanley K. SOX9 is required for kidney fibrosis and activates NAV3 to drive renal myofibroblast function. Sci Signal 2021; 14:14/672/eabb4282. [PMID: 33653921 DOI: 10.1126/scisignal.abb4282] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Renal fibrosis is a common end point for kidney injury and many chronic kidney diseases. Fibrogenesis depends on the sustained activation of myofibroblasts, which deposit the extracellular matrix that causes progressive scarring and organ failure. Here, we showed that the transcription factor SOX9 was associated with kidney fibrosis in humans and required for experimentally induced kidney fibrosis in mice. From genome-wide analysis, we identified Neuron navigator 3 (NAV3) as acting downstream of SOX9 in kidney fibrosis. NAV3 increased in abundance and colocalized with SOX9 after renal injury in mice, and both SOX9 and NAV3 were present in diseased human kidneys. In an in vitro model of renal pericyte transdifferentiation into myofibroblasts, we demonstrated that NAV3 was required for multiple aspects of fibrogenesis, including actin polymerization linked to cell migration and sustained activation of the mechanosensitive transcription factor YAP1. In summary, our work identifies a SOX9-NAV3-YAP1 axis involved in the progression of kidney fibrosis and points to NAV3 as a potential target for pharmacological intervention.
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Affiliation(s)
- Sayyid Raza
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Elliot Jokl
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - James Pritchett
- School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD, UK
| | - Katherine Martin
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Kim Su
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Kara Simpson
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Lindsay Birchall
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Aoibheann F Mullan
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Varinder S Athwal
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK.,Manchester University NHS Foundation Trust, Oxford Road, Manchester M13 9PT, UK
| | - Daniel T Doherty
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
| | - Leo Zeef
- Bioinformatics Core Facility, Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Neil C Henderson
- MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Philip A Kalra
- Salford Royal NHS Foundation Trust, Stott Lane, Salford, UK
| | - Neil A Hanley
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK.,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK.,Manchester University NHS Foundation Trust, Oxford Road, Manchester M13 9PT, UK
| | - Karen Piper Hanley
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health and Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester M13 9PT, UK. .,Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Oxford Road, Manchester, UK
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7
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Hinfray N, Sohm F, Caulier M, Chadili E, Piccini B, Torchy C, Porcher JM, Guiguen Y, Brion F. Dynamic and differential expression of the gonadal aromatase during the process of sexual differentiation in a novel transgenic cyp19a1a-eGFP zebrafish line. Gen Comp Endocrinol 2018. [PMID: 28648994 DOI: 10.1016/j.ygcen.2017.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In zebrafish, there exists a clear need for new tools to study sex differentiation dynamic and its perturbation by endocrine disrupting chemicals. In this context, we developed and characterized a novel transgenic zebrafish line expressing green fluorescent protein (GFP) under the control of the zebrafish cyp19a1a (gonadal aromatase) promoter. In most gonochoristic fish species including zebrafish, cyp19a1a, the enzyme responsible for the synthesis of estrogens, has been shown to play a critical role in the processes of reproduction and sexual differentiation. This novel cyp19a1a-eGFP transgenic line allowed a deeper characterization of expression and localization of cyp19a1a gene in zebrafish gonads both at the adult stage and during development. At the adult stage, GFP expression was higher in ovaries than in testis. We showed a perfect co-expression of GFP and endogenous Cyp19a1a protein in gonads that was mainly localized in the cytoplasm of peri-follicular cells in the ovary and of Leydig and germ cells in the testis. During development, GFP was expressed in all immature gonads of 20 dpf-old zebrafish. Then, GFP expression increased in early differentiated female at 30 and 35dpf to reach a high GFP intensity in well-differentiated ovaries at 40dpf. On the contrary, males consistently displayed low GFP expression as compared to female whatever their stage of development, resulting in a clear dimorphic expression between both sexes. Interestingly, fish that undergoes ovary-to-testis transition (35 and 40dpf) presented GFP levels similar to males or intermediate between females and males. In this transgenic line our results confirm that cyp19a1a is expressed early during development, before the histological differentiation of the gonads, and that the down-regulation of cyp19a1a expression is likely responsible for the testicular differentiation. Moreover, we show that although cyp19a1a expression exhibits a clear dimorphic expression pattern in gonads during sexual differentiation, its expression persists whatever the sex suggesting that estradiol synthesis is important for gonadal development of both sexes. Monitoring the expression of GFP in control and exposed-fish will help determine the sensitivity of this transgenic line to EDCs and to refine mechanistic based-assays for the study of EDCs. In fine, this transgenic zebrafish line will be a useful tool to study physiological processes such as reproduction and sexual differentiation, and their perturbations by EDCs.
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Affiliation(s)
- Nathalie Hinfray
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France.
| | - Frédéric Sohm
- UMS AMAGEN, CNRS, INRA, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Morgane Caulier
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France
| | - Edith Chadili
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France
| | - Benjamin Piccini
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France
| | - Camille Torchy
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France
| | - Jean-Marc Porcher
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France
| | - Yann Guiguen
- INRA, UR1037, Laboratoire de Physiologie et de Génomique des Poissons (LPGP), IFR140, Ouest-Genopole, F-35000 Rennes, France
| | - François Brion
- INERIS, Direction des Risques Chroniques, Pole VIVA, Unite d'ecotoxicologie in vitro et in vivo, BP2, 60550 Verneuil-en-Halatte, France.
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8
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Cayuso J, Dzementsei A, Fischer JC, Karemore G, Caviglia S, Bartholdson J, Wright GJ, Ober EA. EphrinB1/EphB3b Coordinate Bidirectional Epithelial-Mesenchymal Interactions Controlling Liver Morphogenesis and Laterality. Dev Cell 2017; 39:316-328. [PMID: 27825440 PMCID: PMC5107609 DOI: 10.1016/j.devcel.2016.10.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/24/2016] [Accepted: 10/10/2016] [Indexed: 11/25/2022]
Abstract
Positioning organs in the body often requires the movement of multiple tissues, yet the molecular and cellular mechanisms coordinating such movements are largely unknown. Here, we show that bidirectional signaling between EphrinB1 and EphB3b coordinates the movements of the hepatic endoderm and adjacent lateral plate mesoderm (LPM), resulting in asymmetric positioning of the zebrafish liver. EphrinB1 in hepatoblasts regulates directional migration and mediates interactions with the LPM, where EphB3b controls polarity and movement of the LPM. EphB3b in the LPM concomitantly repels hepatoblasts to move leftward into the liver bud. Cellular protrusions controlled by Eph/Ephrin signaling mediate hepatoblast motility and long-distance cell-cell contacts with the LPM beyond immediate tissue interfaces. Mechanistically, intracellular EphrinB1 domains mediate EphB3b-independent hepatoblast extension formation, while EpB3b interactions cause their destabilization. We propose that bidirectional short- and long-distance cell interactions between epithelial and mesenchyme-like tissues coordinate liver bud formation and laterality via cell repulsion.
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Affiliation(s)
- Jordi Cayuso
- Division of Developmental Biology, Mill Hill Laboratories, The Francis Crick Institute, London NW7 1AA, UK
| | - Aliaksandr Dzementsei
- Danish Stem Cell Center (DanStem), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Johanna C Fischer
- Division of Developmental Biology, Mill Hill Laboratories, The Francis Crick Institute, London NW7 1AA, UK
| | - Gopal Karemore
- Novo Nordisk Foundation Center for Protein Research, Protein Imaging Platform, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Sara Caviglia
- Danish Stem Cell Center (DanStem), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Josefin Bartholdson
- Wellcome Trust Sanger Institute, Cell Surface Signalling Laboratory, Cambridge CB10 1HH, UK
| | - Gavin J Wright
- Wellcome Trust Sanger Institute, Cell Surface Signalling Laboratory, Cambridge CB10 1HH, UK
| | - Elke A Ober
- Division of Developmental Biology, Mill Hill Laboratories, The Francis Crick Institute, London NW7 1AA, UK; Danish Stem Cell Center (DanStem), University of Copenhagen, 2200 Copenhagen N, Denmark.
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9
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Yao X, Liu X, Zhang Y, Li Y, Zhao C, Yao S, Wei Y. Gene Therapy of Adult Neuronal Ceroid Lipofuscinoses with CRISPR/Cas9 in Zebrafish. Hum Gene Ther 2017; 28:588-597. [PMID: 28478735 DOI: 10.1089/hum.2016.190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Adult-onset neuronal ceroid lipofuscinosis (ANCL), one of the neuronal ceroid lipofuscinosis (NCLs), is an inherited neurodegenerative disorder with progressive neuronal dysfunction. Recently, mutations in the DNAJC5 gene that encodes cysteine-string protein alpha (CSPα) have been reported to be associated with familial autosomal-dominant ANCL (AD-ANCL). This study constructed an ANCL transgenic zebrafish model expressing the human mutant DNAJC5 (mDNAJC5) gene under the control of a zebrafish neuron-specific promoter. To investigate whether gene therapy based on genome-editing technology could treat ANCL, a panel of TALEN and Cas9 nucleases was designed to disrupt the mDNAJC5 gene in this transgenic animal model. By screening these nucleases, it was found that one nuclease that targeted the 5' coding region efficiently alleviated mDNAJC5 protein aggregates in the affected neurons. Therefore, this study provides a gene therapy strategy via the use of the CRISPR/Cas9 system to treat neural genetic diseases.
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Affiliation(s)
- Xiaomin Yao
- 1 State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xiaowei Liu
- 1 State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Yaguang Zhang
- 1 State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Yuhao Li
- 2 Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Nankai University School of Medicine , Tianjin, People's Republic of China
| | - Chenjian Zhao
- 1 State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Shaohua Yao
- 1 State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Yuquan Wei
- 1 State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
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10
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Wang X, Ling CC, Li L, Qin Y, Qi J, Liu X, You B, Shi Y, Zhang J, Jiang Q, Xu H, Sun C, You Y, Chai R, Liu D. MicroRNA-10a/10b represses a novel target gene mib1 to regulate angiogenesis. Cardiovasc Res 2016; 110:140-50. [PMID: 26825552 DOI: 10.1093/cvr/cvw023] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 01/16/2016] [Indexed: 11/12/2022] Open
Abstract
AIMS MicroRNA-10 (miR-10) was originally shown to regulate angiogenesis by directly modulating the levels of membrane-bound fms-related tyrosine kinase 1 (mflt1) and its soluble splice isoform sflt1 post-transcriptionally in zebrafish. Given that flt1 knockdown incompletely rescues the angiogenic phenotypes in miR-10 morphants, flt1 is unlikely to be the only important target of miR-10 in endothelial cells (ECs). It will be interesting to investigate new mechanism responsible for angiogenic defect induced by miR-10 knockdown. METHODS AND RESULTS Firstly, we demonstrated that miR-10a and miR-10b (miR-10a/10b) were highly enriched in embryonic zebrafish ECs using deep sequencing, Taqman polymerase chain reaction, and in situ hybridisation. Subsequently, we proved that loss of miR-10a/10b impaired blood vessel outgrowth through regulating tip cell behaviours. Mib1 was identified as a potential direct target of miR-10a/10b through in silicon analysis and in vitro luciferase sensor assay. In vivo reporter assay in zebrafish embryos confirmed the binding of miR-10 with 3'-UTR of zebrafish mib1. Furthermore, inhibition of mib1 and Notch signaling rescued the angiogenic defects in miR-10-deficient zebrafish embryos. In addition, we provided evidences that miR-10 regulates human ECs behaviour through targeting Mib1 as well. CONCLUSION Taken together, these results indicate that miR-10 regulates the angiogenic behaviour in a Notch-dependent manner by directly targeting mib1.
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Affiliation(s)
- Xin Wang
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | | | - Liping Li
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | - Yinyin Qin
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | - Jialing Qi
- Medical College, Nantong University, Nantong, China
| | - Xiaoyu Liu
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | - Bo You
- Affiliated Hospital of Nantong University, Nantong, China
| | - Yunwei Shi
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | - Jie Zhang
- Medical College, Nantong University, Nantong, China
| | - Qiu Jiang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Hui Xu
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | - Cheng Sun
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
| | - Yiwen You
- Affiliated Hospital of Nantong University, Nantong, China
| | - Renjie Chai
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China Co-innovation Center of Neuroregeneration, Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, No. 2 Sipailou Road, Nanjing 210096, China
| | - Dong Liu
- Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Qixiu Road 19, Nantong 226001, China
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Tollefsen KE, Song Y, Kleiven M, Mahrosh U, Meland S, Rosseland BO, Teien HC. Transcriptional changes in Atlantic salmon (Salmo salar) after embryonic exposure to road salt. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 169:58-68. [PMID: 26517176 DOI: 10.1016/j.aquatox.2015.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 10/02/2015] [Accepted: 10/04/2015] [Indexed: 06/05/2023]
Abstract
Road salt is extensively used as a deicing chemical in road maintenance during winter and has in certain areas of the world led to density stratifications in lakes and ponds, and adversely impacted aquatic organisms in the recipients of the road run-off. Aquatic vertebrates such as fish have been particularly sensitive during fertilisation, as the fertilisation of eggs involves rapid uptake of the surrounding water, reduction in egg swelling and in ovo exposure to high road salt concentrations. The present study aimed to identify the persistent molecular changes occurring in Atlantic salmon (Salmo salar) eggs after 24h exposure to high concentrations (5000 mg/L) of road salt at fertilisation. The global transcriptional changes were monitored by a 60k salmonid microarray at the eyed egg stage (cleavage stage, 255 degree days after fertilisation) and identified a high number of transcripts being differentially regulated. Functional enrichment, pathway and gene-gene interaction analysis identified that the differentially expressed genes (DEGs) were mainly associated with toxiciologically relevant processes involved in osmoregulation, ionregulation, oxidative stress, metabolism (energy turnover), renal function and developmental in the embryos. Quantitative rtPCR analysis of selected biomarkers, identified by global transcriptomics, were monitored in the eggs for an extended range of road salt concentrations (0, 50, 100, 500 and 5000 mg/L) and revealed a positive concentration-dependent increase in cypa14, a gene involved in lipid turnover and renal function, and nav1, a gene involved in neuraxonal development. Biomarkers for osmoregulatory responses such as atp1a2, the gene encoding the main sodium/potassium ATP-fueled transporter for chloride ions, and txdc9, a gene involved in regulation of cell redox homeostasis (oxidative stress), displayed apparent concentration-dependency with exposure, although large variance in the control group precluded robust statistical discrimination between the groups. A No Transcriptional Effect Level (NOTEL) of 50mg/L road salt was found to be several orders of magnitude lower than the adverse effects documented in developing fish embryos elsewhere, albeit at concentrations realistic in lotic systems receiving run-off from road salt. It remains to be determined whether these transcriptional changes may cause adverse effects in fish at ecologically relevant exposure concentrations of road salt.
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Affiliation(s)
- Knut Erik Tollefsen
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, N-0349 Oslo, Norway; Norwegian University of Life Sciences (NMBU), Faculty of Environmental Science & Technology, Dept. for Environmental Sciences, P.O. Box 5003, N-1432 Ås, Norway; Norwegian University of Life Sciences (NMBU), Centre for Environmental Radioactivity (CERAD CoE), Isotope Laboratory, P.O. Box 5003, N-1432 Ås, Norway.
| | - You Song
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, N-0349 Oslo, Norway; Norwegian University of Life Sciences (NMBU), Centre for Environmental Radioactivity (CERAD CoE), Isotope Laboratory, P.O. Box 5003, N-1432 Ås, Norway
| | - Merethe Kleiven
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Science & Technology, Dept. for Environmental Sciences, P.O. Box 5003, N-1432 Ås, Norway; Norwegian University of Life Sciences (NMBU), Centre for Environmental Radioactivity (CERAD CoE), Isotope Laboratory, P.O. Box 5003, N-1432 Ås, Norway
| | - Urma Mahrosh
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Science & Technology, Dept. for Environmental Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Sondre Meland
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Science & Technology, Dept. for Environmental Sciences, P.O. Box 5003, N-1432 Ås, Norway; Norwegian Public Roads Administration, Environmental Assessment Section, P.O. Box 8142 Dep, N-0033 Oslo, Norway
| | - Bjørn Olav Rosseland
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Science & Technology, Dept. for Environmental Sciences, P.O. Box 5003, N-1432 Ås, Norway; Norwegian University of Life Sciences (NMBU), Centre for Environmental Radioactivity (CERAD CoE), Isotope Laboratory, P.O. Box 5003, N-1432 Ås, Norway
| | - Hans-Christian Teien
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Science & Technology, Dept. for Environmental Sciences, P.O. Box 5003, N-1432 Ås, Norway; Norwegian University of Life Sciences (NMBU), Centre for Environmental Radioactivity (CERAD CoE), Isotope Laboratory, P.O. Box 5003, N-1432 Ås, Norway
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12
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Zong Y, Yu P, Cheng H, Wang H, Wang X, Liang C, Zhu H, Qin Y, Qin C. miR-29c regulates NAV3 protein expression in a transgenic mouse model of Alzheimer's disease. Brain Res 2015. [PMID: 26212654 DOI: 10.1016/j.brainres.2015.07.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The microRNA-29 family (miRNA-29s) has three mature members, miR-29a, miR-29b and miR-29c, which have been implicated in the regulation of the pathogenesis of Alzheimer's disease (AD). The miR-29 family members exhibit differential regulation in various diseases and different subcellular distribution. In the present study, we initially investigated differential expression of miR-29c in the hippocampus and the frontal cortex of the young APPswe/PSΔE9 mouse brain, accompanied by inverse expression of neurone navigator 3 (NAV3), a regulator of axon guidance. We observed that miR-29c directly mediated downregulation of NAV3 protein expression in vitro. The mouse NAV3 mRNA has a functional miR-29c binding site in the 3' UTR, which localized in the position between 830-836 bp of 3'UTR region, slightly different from human NAV3 mRNA binding site. These observations suggest that miR-29c may be involved in neurodegenerative processes by regulating NAV3 expression in the young AD mouse.
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Affiliation(s)
- Yuanyuan Zong
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, PR China
| | - Pin Yu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical Collage (PUMC), No. 5 Panjiayuan Nanli, Chaoyang District, Beijing 10021, PR China
| | - Hongxia Cheng
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, PR China
| | - Hailin Wang
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical Collage (PUMC), No. 5 Panjiayuan Nanli, Chaoyang District, Beijing 10021, PR China
| | - Xiaoying Wang
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical Collage (PUMC), No. 5 Panjiayuan Nanli, Chaoyang District, Beijing 10021, PR China
| | - Chunlian Liang
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical Collage (PUMC), No. 5 Panjiayuan Nanli, Chaoyang District, Beijing 10021, PR China
| | - Hua Zhu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical Collage (PUMC), No. 5 Panjiayuan Nanli, Chaoyang District, Beijing 10021, PR China
| | - Yejun Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, PR China.
| | - Chuan Qin
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical Collage (PUMC), No. 5 Panjiayuan Nanli, Chaoyang District, Beijing 10021, PR China.
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13
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Id2a is required for hepatic outgrowth during liver development in zebrafish. Mech Dev 2015; 138 Pt 3:399-414. [PMID: 26022495 DOI: 10.1016/j.mod.2015.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 04/24/2015] [Accepted: 05/14/2015] [Indexed: 12/19/2022]
Abstract
During development, inhibitor of DNA binding (Id) proteins, a subclass of the helix-loop-helix family of proteins, regulate cellular proliferation, differentiation, and apoptosis in various organs. However, a functional role of Id2a in liver development has not yet been reported. Here, using zebrafish as a model organism, we provide in vivo evidence that Id2a regulates hepatoblast proliferation and cell death during liver development. Initially, in the liver, id2a is expressed in hepatoblasts and after their differentiation, id2a expression is restricted to biliary epithelial cells. id2a knockdown in zebrafish embryos had no effect on hepatoblast specification or hepatocyte differentiation. However, liver size was greatly reduced in id2a morpholino-injected embryos, indicative of a hepatic outgrowth defect attributable to the significant decrease in proliferating hepatoblasts concomitant with the significant increase in hepatoblast cell death. Altogether, these data support the role of Id2a as an important regulator of hepatic outgrowth via modulation of hepatoblast proliferation and survival during liver development in zebrafish.
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14
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Cox AG, Goessling W. The lure of zebrafish in liver research: regulation of hepatic growth in development and regeneration. Curr Opin Genet Dev 2015; 32:153-61. [PMID: 25863341 DOI: 10.1016/j.gde.2015.03.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 02/23/2015] [Accepted: 03/05/2015] [Indexed: 12/18/2022]
Abstract
The liver is an essential organ that plays a pivotal role in metabolism, digestion and nutrient storage. Major efforts have been made to develop zebrafish (Danio rerio) as a model system to study the pathways regulating hepatic growth during liver development and regeneration. Zebrafish offer unique advantages over other vertebrates including in vivo imaging at cellular resolution and the capacity for large-scale chemical and genetic screens. Here, we review the cellular and molecular mechanisms that regulate hepatic growth during liver development in zebrafish. We also highlight emerging evidence that developmental pathways are reactivated following liver injury to facilitate regeneration. Finally, we discuss how zebrafish have transformed drug discovery efforts and enabled the identification of drugs that stimulate hepatic growth and provide hepatoprotection in pre-clinical models of liver injury, with the ultimate goal of identifying novel therapeutic approaches to treat liver disease.
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Affiliation(s)
- Andrew G Cox
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Wolfram Goessling
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States; Dana-Farber Cancer Institute, Boston, MA, United States; Harvard Stem Cell Institute, Cambridge, MA, United States; Broad Institute of MIT and Harvard, Cambridge, MA, United States.
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15
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Abe T, Yamazaki D, Murakami S, Hiroi M, Nitta Y, Maeyama Y, Tabata T. The NAV2 homolog Sickie regulates F-actin-mediated axonal growth in Drosophila mushroom body neurons via the non-canonical Rac-Cofilin pathway. Development 2014; 141:4716-28. [DOI: 10.1242/dev.113308] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The Rac-Cofilin pathway is essential for cytoskeletal remodeling to control axonal development. Rac signals through the canonical Rac-Pak-LIMK pathway to suppress Cofilin-dependent axonal growth and through a Pak-independent non-canonical pathway to promote outgrowth. Whether this non-canonical pathway converges to promote Cofilin-dependent F-actin reorganization in axonal growth remains elusive. We demonstrate that Sickie, a homolog of the human microtubule-associated protein neuron navigator 2, cell-autonomously regulates axonal growth of Drosophila mushroom body (MB) neurons via the non-canonical pathway. Sickie was prominently expressed in the newborn F-actin-rich axons of MB neurons. A sickie mutant exhibited axonal growth defects, and its phenotypes were rescued by exogenous expression of Sickie. We observed phenotypic similarities and genetic interactions among sickie and Rac-Cofilin signaling components. Using the MARCM technique, distinct F-actin and phospho-Cofilin patterns were detected in developing axons mutant for sickie and Rac-Cofilin signaling regulators. The upregulation of Cofilin function alleviated the axonal defect of the sickie mutant. Epistasis analyses revealed that Sickie suppresses the LIMK overexpression phenotype and is required for Pak-independent Rac1 and Slingshot phosphatase to counteract LIMK. We propose that Sickie regulates F-actin-mediated axonal growth via the non-canonical Rac-Cofilin pathway in a Slingshot-dependent manner.
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Affiliation(s)
- Takashi Abe
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
- Graduate Program in Biophysics and Biochemistry, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
| | - Daisuke Yamazaki
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | - Satoshi Murakami
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | - Makoto Hiroi
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | - Yohei Nitta
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | - Yuko Maeyama
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | - Tetsuya Tabata
- Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
- Graduate Program in Biophysics and Biochemistry, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
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16
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Abstract
The liver performs a large number of essential synthetic and regulatory functions that are acquired during fetal development and persist throughout life. Their disruption underlies a diverse group of heritable and acquired diseases that affect both pediatric and adult patients. Although experimental analyses used to study liver development and disease are typically performed in cell culture models or rodents, the zebrafish is increasingly used to complement discoveries made in these systems. Forward and reverse genetic analyses over the past two decades have shown that the molecular program for liver development is largely conserved between zebrafish and mammals, and that the zebrafish can be used to model heritable human liver disorders. Recent work has demonstrated that zebrafish can also be used to study the mechanistic basis of acquired liver diseases. Here, we provide a comprehensive summary of how the zebrafish has contributed to our understanding of human liver development and disease.
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Affiliation(s)
- Benjamin J Wilkins
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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17
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Fibroblast growth factor receptor 2c signaling is required for intestinal cell differentiation in zebrafish. PLoS One 2013; 8:e58310. [PMID: 23484013 PMCID: PMC3590179 DOI: 10.1371/journal.pone.0058310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Accepted: 02/01/2013] [Indexed: 12/15/2022] Open
Abstract
Background There are four cell lineages derived from intestinal stem cells that are located at the crypt and villus in the mammalian intestine the non-secretory absorptive enterocytes, and the secretory cells, which include mucous-secreting goblet cells, regulatory peptide-secreting enteroendocrine cells and antimicrobial peptide-secreting Paneth cells. Although fibroblast growth factor (Fgf) signaling is important for cell proliferation and differentiation in various tissues, its role in intestinal differentiation is less well understood. Methodology/Principal Findings We used a loss of function approach to investigate the importance of Fgf signaling in intestinal cell differentiation in zebrafish; abnormal differentiation of goblet cells was observed when Fgf signaling was inhibited using SU5402 or in the Tg(hsp70ldnfgfr1-EGFP) transgenic line. We identified Fgfr2c as an important receptor for cell differentiation. The number of goblet cells and enteroendocrine cells was reduced in fgfr2c morphants. In addition to secretory cells, enterocyte differentiation was also disrupted in fgfr2c morphants. Furthermore, proliferating cells were increased in the morphants. Interestingly, the loss of fgfr2c expression repressed secretory cell differentiation and increased cell proliferation in the mibta52b mutant that had defective Notch signaling. Conclusions/Significance In conclusion, we found that Fgfr2c signaling derived from mesenchymal cells is important for regulating the differentiation of zebrafish intestine epithelial cells by promoting cell cycle exit. The results of Fgfr2c knockdown in mibta52b mutants indicated that Fgfr2c signaling is required for intestinal cell differentiation. These findings provide new evidences that Fgf signaling is required for the differentiation of intestinal cells in the zebrafish developing gut.
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18
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Huang P, Xu L, Liang W, Tam CI, Zhang Y, Qi F, Zhu Z, Lin S, Zhang B. Genomic deletion induced by Tol2 transposon excision in zebrafish. Nucleic Acids Res 2012; 41:e36. [PMID: 23143102 PMCID: PMC3553969 DOI: 10.1093/nar/gks1035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Genomic deletions induced by imprecise excision of transposons have been used to disrupt gene functions in Drosophila. To determine the excision properties of Tol2, a popular transposon in zebrafish, we took advantage of two transgenic zebrafish lines Et(gata2a:EGFP)pku684 and Et(gata2a:EGFP)pku760, and mobilized the transposon by injecting transposase mRNA into homozygous transgenic embryos. Footprint analysis showed that the Tol2 transposons were excised in either a precise or an imprecise manner. Furthermore, we identified 1093-bp and 1253-bp genomic deletions in Et(gata2a:EGFP)pku684 founder embryos flanking the 5′ end of the original Tol2 insertion site, and a 1340-bp deletion in the Et(gata2a:EGFP)pku760 founder embryos flanking the 3′ end of the insertion site. The mosaic Et(gata2a:EGFP)pku684 embryos were raised to adulthood and screened for germline transmission of Tol2 excision in their F1 progeny. On average, ∼42% of the F1 embryos displayed loss or altered EGFP patterns, demonstrating that this transposon could be efficiently excised from the zebrafish genome in the germline. Furthermore, from 59 founders, we identified one that transmitted the 1093-bp genomic deletion to its offspring. These results suggest that imprecise Tol2 transposon excision can be used as an alternative strategy to achieve gene targeting in zebrafish.
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Affiliation(s)
- Peng Huang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, College of Life Sciences, Peking University, Beijing 100871, PR China
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Carlsson E, Krohn K, Ovaska K, Lindberg P, Häyry V, Maliniemi P, Lintulahti A, Korja M, Kivisaari R, Hussein S, Sarna S, Niiranen K, Hautaniemi S, Haapasalo H, Ranki A. Neuron navigator 3 alterations in nervous system tumors associate with tumor malignancy grade and prognosis. Genes Chromosomes Cancer 2012; 52:191-201. [DOI: 10.1002/gcc.22019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 09/18/2012] [Indexed: 01/03/2023] Open
Affiliation(s)
- Emilia Carlsson
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital, HUS FI‐00029, Finland
| | - Kai Krohn
- Department of Pathology, Centre for Laboratory Medicine, Tampere FI‐33521, Finland
- CliniXion Oy, Tampere FI‐33520, Finland
| | - Kristian Ovaska
- Computational Systems Biology Laboratory, Institute of Biomedicine and Genome‐Scale Biology Research Program, University of Helsinki, Finland
| | | | - Valtteri Häyry
- Department of Biochemistry and Developmental Biology, Institute of Biomedicine, University of Helsinki, Helsinki FI‐00014, Finland
| | - Pilvi Maliniemi
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital, HUS FI‐00029, Finland
| | - Anu Lintulahti
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital, HUS FI‐00029, Finland
| | - Miikka Korja
- Department of Neurosurgery, Helsinki University Central Hospital, Helsinki FI‐00029, Finland
- Department of Medical Biochemistry and Genetics, University of Turku, Turku FI‐20520, Finland
| | - Riku Kivisaari
- Department of Neurosurgery, Helsinki University Central Hospital, Helsinki FI‐00029, Finland
| | - Samer Hussein
- Department of Biochemistry and Developmental Biology, Institute of Biomedicine, University of Helsinki, Helsinki FI‐00014, Finland
| | - Seppo Sarna
- Department of Public Health, Hjelt Institute, University of Helsinki, Helsinki FI‐00014, Finland
| | - Kirsi Niiranen
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital, HUS FI‐00029, Finland
| | - Sampsa Hautaniemi
- Computational Systems Biology Laboratory, Institute of Biomedicine and Genome‐Scale Biology Research Program, University of Helsinki, Finland
| | - Hannu Haapasalo
- Department of Pathology, Centre for Laboratory Medicine, Tampere FI‐33521, Finland
| | - Annamari Ranki
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital, HUS FI‐00029, Finland
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Abstract
This review is focusing on a critical mediator of embryonic and postnatal development with multiple implications in inflammation, neoplasia, and other pathological situations in brain and peripheral tissues. These morphogenetic guidance and dependence processes are involved in several malignancies targeting the epithelial and immune systems including the progression of human colorectal cancers. We consider the most important findings and their impact on basic, translational, and clinical cancer research. Expected information can bring new cues for innovative, efficient, and safe strategies of personalized medicine based on molecular markers, protagonists, signaling networks, and effectors inherent to the Netrin axis in pathophysiological states.
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Tsai SM, Liu DW, Wang WP. Fibroblast growth factor (Fgf) signaling pathway regulates liver homeostasis in zebrafish. Transgenic Res 2012; 22:301-14. [DOI: 10.1007/s11248-012-9636-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 07/05/2012] [Indexed: 02/08/2023]
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