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Zhao S, Mo G, Wang Q, Xu J, Yu S, Huang Z, Liu W, Zhang W. Role of RB1 in neurodegenerative diseases: inhibition of post-mitotic neuronal apoptosis via Kmt5b. Cell Death Discov 2024; 10:182. [PMID: 38637503 PMCID: PMC11026443 DOI: 10.1038/s41420-024-01955-y] [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: 07/03/2023] [Revised: 12/04/2023] [Accepted: 04/10/2024] [Indexed: 04/20/2024] Open
Abstract
During the development of the vertebrate nervous system, 50% of the nerve cells undergo apoptosis shortly after formation. This process is important for sculpting tissue during morphogenesis and removing transiently functional cells that are no longer needed, ensuring the appropriate number of neurons in each region. Dysregulation of neuronal apoptosis can lead to neurodegenerative diseases. However, the molecular events involved in activating and regulating the neuronal apoptosis program are not fully understood. In this study, we identified several RB1 mutations in patients with neurodegenerative diseases. Then, we used a zebrafish model to investigate the role of Rb1 in neuronal apoptosis. We showed that Rb1-deficient mutants exhibit a significant hindbrain neuronal apoptosis, resulting in increased microglia infiltration. We further revealed that the apoptotic neurons in Rb1-deficient zebrafish were post-mitotic neurons, and Rb1 inhibits the apoptosis of these neurons by regulating bcl2/caspase through binding to Kmt5b. Moreover, using this zebrafish mutant, we verified the pathogenicity of the R621S and L819V mutations of human RB1 in neuronal apoptosis. Collectively, our data indicate that the Rb1-Kmt5b-caspase/bcl2 axis is crucial for protecting post-mitotic neurons from apoptosis and provides an explanation for the pathogenesis of clinically relevant mutations.
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Affiliation(s)
- Shuang Zhao
- The Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Guiling Mo
- Guangzhou KingMed Diagnostics Group Co., Ltd., International Biotech Island, Guangzhou, 510005, China
| | - Qiang Wang
- The Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Jin Xu
- The Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Shihui Yu
- Guangzhou KingMed Diagnostics Group Co., Ltd., International Biotech Island, Guangzhou, 510005, China
| | - Zhibin Huang
- The Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Wei Liu
- The Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
| | - Wenqing Zhang
- The Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, 518055, China.
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2
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Kairišs K, Sokolova N, Zilova L, Schlagheck C, Reinhardt R, Baumbach T, Faragó T, van de Kamp T, Wittbrodt J, Weinhardt V. Visualisation of gene expression within the context of tissues using an X-ray computed tomography-based multimodal approach. Sci Rep 2024; 14:8543. [PMID: 38609416 PMCID: PMC11015006 DOI: 10.1038/s41598-024-58766-5] [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: 01/08/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The development of an organism is orchestrated by the spatial and temporal expression of genes. Accurate visualisation of gene expression patterns in the context of the surrounding tissues offers a glimpse into the mechanisms that drive morphogenesis. We developed correlative light-sheet fluorescence microscopy and X-ray computed tomography approach to map gene expression patterns to the whole organism`s 3D anatomy. We show that this multimodal approach is applicable to gene expression visualized by protein-specific antibodies and fluorescence RNA in situ hybridisation offering a detailed understanding of individual phenotypic variations in model organisms. Furthermore, the approach offers a unique possibility to identify tissues together with their 3D cellular and molecular composition in anatomically less-defined in vitro models, such as organoids. We anticipate that the visual and quantitative insights into the 3D distribution of gene expression within tissue architecture, by multimodal approach developed here, will be equally valuable for reference atlases of model organisms development, as well as for comprehensive screens, and morphogenesis studies of in vitro models.
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Affiliation(s)
- Kristaps Kairišs
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- HeiKa Graduate School On "Functional Materials", Heidelberg, Germany
| | - Natalia Sokolova
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- Heidelberg International Biosciences Graduate School HBIGS, Heidelberg, Germany
| | - Lucie Zilova
- Centre for Organismal Studies, 69120, Heidelberg, Germany
| | - Christina Schlagheck
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- HeiKa Graduate School On "Functional Materials", Heidelberg, Germany
- Heidelberg International Biosciences Graduate School HBIGS, Heidelberg, Germany
| | - Robert Reinhardt
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- European Molecular Biology Laboratory, Heidelberg, Germany
| | - Tilo Baumbach
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Laboratory for Applications of Synchrotron Radiation (LAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Tomáš Faragó
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
| | - Thomas van de Kamp
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Laboratory for Applications of Synchrotron Radiation (LAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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3
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Schmidt AR, Placer HJ, Muhammad IM, Shephard R, Patrick RL, Saurborn T, Horstick EJ, Bergeron SA. Transcriptional control of visual neural circuit development by GS homeobox 1. PLoS Genet 2024; 20:e1011139. [PMID: 38669217 PMCID: PMC11051655 DOI: 10.1371/journal.pgen.1011139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 01/16/2024] [Indexed: 04/28/2024] Open
Abstract
As essential components of gene expression networks, transcription factors regulate neural circuit assembly. The homeobox transcription factor encoding gene, gs homeobox 1 (gsx1), is expressed in the developing visual system; however, no studies have examined its role in visual system formation. In zebrafish, retinal ganglion cell (RGC) axons that transmit visual information to the brain terminate in ten arborization fields (AFs) in the optic tectum (TeO), pretectum (Pr), and thalamus. Pretectal AFs (AF1-AF9) mediate distinct visual behaviors, yet we understand less about their development compared to AF10 in the TeO. Using gsx1 zebrafish mutants, immunohistochemistry, and transgenic lines, we observed that gsx1 is required for vesicular glutamate transporter, Tg(slc17a6b:DsRed), expression in the Pr, but not overall neuron number. gsx1 mutants have normal eye morphology, yet they exhibit impaired visual ability during prey capture. RGC axon volume in the gsx1 mutant Pr and TeO is reduced, and AF7 that is active during feeding is missing which is consistent with reduced hunting performance. Timed laser ablation of Tg(slc17a6b:DsRed)-positive cells reveals that they are necessary for AF7 formation. This work is the first to implicate gsx1 in establishing cell identity and functional neural circuits in the visual system.
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Affiliation(s)
- Alexandra R. Schmidt
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
| | - Haiden J. Placer
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
| | - Ishmael M. Muhammad
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
| | - Rebekah Shephard
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
| | - Regina L. Patrick
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
| | - Taylor Saurborn
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
| | - Eric J. Horstick
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
- Department of Neuroscience, West Virginia University, Morgantown, West Virgina, United States of America
| | - Sadie A. Bergeron
- Department of Biology, West Virginia University, Morgantown, West Virgina, United States of America
- Department of Neuroscience, West Virginia University, Morgantown, West Virgina, United States of America
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4
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Wang Y, Ke Z, Li Y, Qiu M, Liu J, Yang Z, Wen S, Liang M, Chen S. De novo variants of IRF2BPL result in developmental epileptic disorder. Orphanet J Rare Dis 2024; 19:121. [PMID: 38481258 PMCID: PMC10938665 DOI: 10.1186/s13023-024-03130-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 03/03/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Pathogenic variants of the IRF2BPL gene have been reported to cause neurodevelopmental disorders; however, studies focused on IRF2BPL in zebrafish are limited. RESULTS We reported three probands diagnosed with developmental delay and epilepsy and investigated the role of IRF2BPL in neurodevelopmental disorders in zebrafish. The clinical and genetic characteristics of three patients with neurodevelopmental disorder with regression, abnormal movements, loss of speech and seizures (NEDAMSS) were collected. Three de novo variants (NM_024496.4: c.1171 C > T, p.Arg391Cys; c.1157 C > T, p.Thr386Met; and c.273_307del, p.Ala92Thrfs*29) were detected and classified as pathogenic or likely pathogenic according to ACMG guidelines. Zebrafish crispants with disruption of the ortholog gene irf2bpl demonstrated a reduced body length and spontaneous ictal-like and interictal-like discharges in an electrophysiology study. After their spasms were controlled, they gain some development improvements. CONCLUSION We contribute two new pathogenic variants for IRF2BPL related developmental epileptic disorder which provided evidences for genetic counseling. In zebrafish model, we for the first time confirm that disruption of irf2bpl could introduce spontaneous electrographic seizures which mimics key phenotypes in human patients. Our follow-up results suggest that timely cessation of spasmodic seizures can improve the patient's neurodevelopment.
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Affiliation(s)
- Yong Wang
- Department of Pediatrics, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 350001, Fuzhou, Fujian, China.
| | - Zhongling Ke
- Department of Pediatrics, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 350001, Fuzhou, Fujian, China
| | - Yufen Li
- Department of Pediatrics, Linyi People's Hospital, 276003, Linyi, Shandong, China
| | - Mingqi Qiu
- Department of Pediatrics, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 350001, Fuzhou, Fujian, China
| | - Jing Liu
- Cipher Gene LLC, 100089, Beijing, China
| | | | - Shu Wen
- Cipher Gene LLC, 100089, Beijing, China
| | | | - Shan Chen
- Department of Pediatrics, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 350001, Fuzhou, Fujian, China
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5
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Prakash V, Chauhan SS, Ansari MI, Jagdale P, Ayanur A, Parthasarathi R, Anbumani S. 4-Methylbenzylidene camphor induced neurobehavioral toxicity in zebrafish (Danio rerio) embryos. ENVIRONMENTAL RESEARCH 2024; 242:117746. [PMID: 38008201 DOI: 10.1016/j.envres.2023.117746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/05/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023]
Abstract
4-Methylbenzylidene camphor (4-MBC) is a widely used organic UV filter in personal care products. Extensive use of 4-MBC and its frequent detection in aquatic ecosystems defile the biota with muscular and neuronal impairments. This study investigates the neurobehavioral toxicity of 4-MBC using Danio rerio as a model organism. Embryos were exposed semi-statically to 4-MBC at 5, 50, and 500 μg/L concentrations for 10-day post fertilization (dpf). Embryos exhibited a significant thigmotaxis and decreased startle touch response with altered expression of nervous system mRNA transcripts on 5 & 10 dpf. Compared to the sham-exposed group, 4-MBC treated larvae exhibited changes in the expression of shha, ngn1, mbp, elavl3, α1-tubulin, syn2a, and gap43 genes. Since ngn1 induction is mediated by shh signaling during sensory neuron specification, the elevated protein expression of NGN1 indicates 4-MBC interference in the sonic hedgehog signaling pathway. This leads to sensory neuron impairment and function such as 'sense' as evident from reduced touch response. In addition, larval brain histology with a reduced number of cells in the Purkinje layer emblazing the defunct motor coordination. Predictive toxicity study also showed a higher affinity of 4-MBC to modeled Shh protein. Thus, the findings of the present work highlighted that 4-MBC is potential to induce developmental neurotoxicity at both behavioral and molecular functional perspectives, and developing D. rerio larvae could be considered as a suitable alternate animal model to assess the neurological dysfunction of organic UV filters.
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Affiliation(s)
- Ved Prakash
- Ecotoxicology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, "Vishvigyan Bhawan", 31, Mahatma Gandhi Marg, P.O. Box No.80, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shweta Singh Chauhan
- Computational Toxicology Facility, CSIR-Indian Institute of Toxicology Research, "Vishvigyan Bhawan", 31, Mahatma Gandhi Marg, P.O. Box No.80, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mohammad Imran Ansari
- Food Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pankaj Jagdale
- Pathology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, 226001, India
| | - Anjaneya Ayanur
- Pathology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ramakrishnan Parthasarathi
- Computational Toxicology Facility, CSIR-Indian Institute of Toxicology Research, "Vishvigyan Bhawan", 31, Mahatma Gandhi Marg, P.O. Box No.80, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sadasivam Anbumani
- Ecotoxicology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, "Vishvigyan Bhawan", 31, Mahatma Gandhi Marg, P.O. Box No.80, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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6
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Wang Z, Zhang J, Symvoulidis P, Guo W, Zhang L, Wilson MA, Boyden ES. Imaging the voltage of neurons distributed across entire brains of larval zebrafish. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.15.571964. [PMID: 38168290 PMCID: PMC10760087 DOI: 10.1101/2023.12.15.571964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Neurons interact in networks distributed throughout the brain. Although much effort has focused on whole-brain calcium imaging, recent advances in genetically encoded voltage indicators (GEVIs) raise the possibility of imaging voltage of neurons distributed across brains. To achieve this, a microscope must image at high volumetric rate and signal-to-noise ratio. We present a remote scanning light-sheet microscope capable of imaging GEVI-expressing neurons distributed throughout entire brains of larval zebrafish at a volumetric rate of 200.8 Hz. We measured voltage of ∼1/3 of the neurons of the brain, distributed throughout. We observed that neurons firing at different times during a sequence were located at different brain locations, for sequences elicited by a visual stimulus, which mapped onto locations throughout the optic tectum, as well as during stimulus-independent bursts, which mapped onto locations in the cerebellum and medulla. Whole-brain voltage imaging may open up frontiers in the fundamental operation of neural systems.
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7
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Lalonde RL, Wells HH, Kemmler CL, Nieuwenhuize S, Lerma R, Burger A, Mosimann C. pIGLET: Safe harbor landing sites for reproducible and efficient transgenesis in zebrafish. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.08.570868. [PMID: 38106217 PMCID: PMC10723424 DOI: 10.1101/2023.12.08.570868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Standard methods for transgenesis in zebrafish depend on random transgene integration into the genome followed by resource-intensive screening and validation. Targeted vector integration into validated genomic loci using phiC31 integrase-based attP/attB recombination has transformed mouse and Drosophila transgenesis. However, while the phiC31 system functions in zebrafish, validated loci carrying attP-based landing or safe harbor sites suitable for universal transgenesis applications in zebrafish have not been established. Here, using CRISPR-Cas9, we converted two well-validated single insertion Tol2-based zebrafish transgenes with long-standing genetic stability into two attP landing sites, called phiC31 Integrase Genomic Loci Engineered for Transgenesis (pIGLET). Generating fluorescent reporters, loxP-based Switch lines, CreERT2 drivers, and gene-regulatory variant reporters in the pIGLET14a and pIGLET24b landing site alleles, we document their suitability for transgenesis applications across cell types and developmental stages. For both landing sites, we routinely achieve 25-50% germline transmission of targeted transgene integrations, drastically reducing the number of required animals and necessary resources to generate individual transgenic lines. We document that phiC31 integrase-based transgenesis into pIGLET14a and pIGLET24b reproducibly results in representative reporter expression patterns in injected F0 zebrafish embryos suitable for enhancer discovery and qualitative and quantitative comparison of gene-regulatory element variants. Taken together, our new phiC31 integrase-based transgene landing sites establish reproducible, targeted zebrafish transgenesis for numerous applications while greatly reducing the workload of generating new transgenic zebrafish lines.
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Affiliation(s)
- Robert L. Lalonde
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
| | - Harrison H. Wells
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
| | - Cassie L. Kemmler
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
| | - Susan Nieuwenhuize
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
| | - Raymundo Lerma
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
| | - Alexa Burger
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
| | - Christian Mosimann
- University of Colorado, School of Medicine, Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, 12801 E 17th Avenue, Aurora, CO 80045, USA
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8
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Serrano RJ, Oorschot V, Palipana D, Calcinotto V, Sonntag C, Ramm G, Bryson-Richardson RJ. Genetic model of UBA5 deficiency highlights the involvement of both peripheral and central nervous systems and identifies widespread mitochondrial abnormalities. Brain Commun 2023; 5:fcad317. [PMID: 38046095 PMCID: PMC10691876 DOI: 10.1093/braincomms/fcad317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 10/10/2023] [Accepted: 11/19/2023] [Indexed: 12/05/2023] Open
Abstract
Variants in UBA5 have been reported to cause neurological disease with impaired motor function, developmental delay, intellectual disability and brain pathology as recurrent clinical manifestations. UBA5 encodes a ubiquitin-activating-like enzyme that activates ufmylation, a post-translational ubiquitin-like modification pathway, which has been implicated in neurodevelopment and neuronal survival. The reason behind the variation in severity and clinical manifestations in affected individuals and the signal transduction pathways regulated by ufmylation that compromise the nervous system remains unknown. Zebrafish have emerged as a powerful model to study neurodegenerative disease due to its amenability for in vivo analysis of muscle and neuronal tissues, high-throughput examination of motor function and rapid embryonic development allowing an examination of disease progression. Using clustered regularly interspaced short palindromic repeats-associated protein 9 genome editing, we developed and characterized zebrafish mutant models to investigate disease pathophysiology. uba5 mutant zebrafish showed a significantly impaired motor function accompanied by delayed growth and reduced lifespan, reproducing key phenotypes observed in affected individuals. Our study demonstrates the suitability of zebrafish to study the pathophysiology of UBA5-related disease and as a powerful tool to identify pathways that could reduce disease progression. Furthermore, uba5 mutants exhibited widespread mitochondrial damage in both the nervous system and the skeletal muscle, suggesting that a perturbation of mitochondrial function may contribute to disease pathology.
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Affiliation(s)
- Rita J Serrano
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Viola Oorschot
- Monash Ramaciotti Centre for Cryo-Electron Microscopy, Monash University, Melbourne 3800, Australia
| | - Dashika Palipana
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Vanessa Calcinotto
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Carmen Sonntag
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Georg Ramm
- Monash Ramaciotti Centre for Cryo-Electron Microscopy, Monash University, Melbourne 3800, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne 3800, Australia
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9
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Belmonte-Mateos C, Meister L, Pujades C. Hindbrain rhombomere centers harbor a heterogenous population of dividing progenitors which rely on Notch signaling. Front Cell Dev Biol 2023; 11:1268631. [PMID: 38020924 PMCID: PMC10652760 DOI: 10.3389/fcell.2023.1268631] [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: 07/28/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023] Open
Abstract
Tissue growth and morphogenesis are interrelated processes, whose tight coordination is essential for the production of different cell fates and the timely precise allocation of stem cell capacities. The zebrafish embryonic brainstem, the hindbrain, exemplifies such coupling between spatiotemporal cell diversity acquisition and tissue growth as the neurogenic commitment is differentially distributed over time. Here, we combined cell lineage and in vivo imaging approaches to reveal the emergence of specific cell population properties within the rhombomeres. We studied the molecular identity of hindbrain rhombomere centers and showed that they harbor different progenitor capacities that change over time. By clonal analysis, we revealed that cells within the center of rhombomeres decrease the proliferative capacity to remain mainly in the G1 phase. Proliferating progenitors give rise to neurons by asymmetric and symmetric neurogenic divisions while maintaining the pool of progenitors. The proliferative capacity of these cells differs from their neighbors, and they are delayed in the onset of Notch activity. Through functional studies, we demonstrated that they rely on Notch3 signaling to be maintained as non-committed progenitors. In this study, we show that cells in rhombomere centers, despite the neurogenic asynchrony, might share steps of a similar program with the rhombomere counterparts, to ensure proper tissue growth.
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10
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Cui J, Tian S, Gu Y, Wu X, Wang L, Wang J, Chen X, Meng Z. Toxicity effects of pesticides based on zebrafish (Danio rerio) models: Advances and perspectives. CHEMOSPHERE 2023; 340:139825. [PMID: 37586498 DOI: 10.1016/j.chemosphere.2023.139825] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/02/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
Pesticides inevitably enter aquatic environments, posing potential risks to organisms. The common aquatic model organism, zebrafish (Danio rerio), are widely used to evaluate the toxicity of pesticides. In this review, we searched the Web of Science database for articles published between 2012 and 2022, using the keywords "pesticide", "zebrafish", and "toxicity", retrieving 618 publications. Furthermore, we described the main pathways by which pesticides enter aquatic environments and the fate of their residues in these environments. We systematically reviewed the toxicity effects of pesticides on zebrafish, including developmental toxicity, endocrine-disrupting effects, reproductive toxicity, neurotoxicity, immunotoxicity, and genotoxicity. Importantly, we summarized the latest research progress on the toxicity mechanism of pesticides to zebrafish based on omics technologies, including transcriptomics, metabolomics, and microbiomics. Finally, we discussed future research prospects, focusing on the combined exposure of multiple pollutants including pesticides, the risk of multigenerational exposure to pesticides, and the chronic toxicity of aquatic nanopesticides. This review provides essential data support for ecological risk assessments of pesticides in aquatic environments, and has implications for water management in the context of pesticide pollution.
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Affiliation(s)
- Jiajia Cui
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Sinuo Tian
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Yuntong Gu
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Xinyi Wu
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Lei Wang
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Jianjun Wang
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Xiaojun Chen
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China.
| | - Zhiyuan Meng
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China.
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11
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Eom M, Han S, Park P, Kim G, Cho ES, Sim J, Lee KH, Kim S, Tian H, Böhm UL, Lowet E, Tseng HA, Choi J, Lucia SE, Ryu SH, Rózsa M, Chang S, Kim P, Han X, Piatkevich KD, Choi M, Kim CH, Cohen AE, Chang JB, Yoon YG. Statistically unbiased prediction enables accurate denoising of voltage imaging data. Nat Methods 2023; 20:1581-1592. [PMID: 37723246 PMCID: PMC10555843 DOI: 10.1038/s41592-023-02005-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 08/10/2023] [Indexed: 09/20/2023]
Abstract
Here we report SUPPORT (statistically unbiased prediction utilizing spatiotemporal information in imaging data), a self-supervised learning method for removing Poisson-Gaussian noise in voltage imaging data. SUPPORT is based on the insight that a pixel value in voltage imaging data is highly dependent on its spatiotemporal neighboring pixels, even when its temporally adjacent frames alone do not provide useful information for statistical prediction. Such dependency is captured and used by a convolutional neural network with a spatiotemporal blind spot to accurately denoise voltage imaging data in which the existence of the action potential in a time frame cannot be inferred by the information in other frames. Through simulations and experiments, we show that SUPPORT enables precise denoising of voltage imaging data and other types of microscopy image while preserving the underlying dynamics within the scene.
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Affiliation(s)
- Minho Eom
- School of Electrical Engineering, KAIST, Daejeon, Republic of Korea
| | - Seungjae Han
- School of Electrical Engineering, KAIST, Daejeon, Republic of Korea
| | - Pojeong Park
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Gyuri Kim
- School of Electrical Engineering, KAIST, Daejeon, Republic of Korea
| | - Eun-Seo Cho
- School of Electrical Engineering, KAIST, Daejeon, Republic of Korea
| | - Jueun Sim
- Department of Materials Science and Engineering, KAIST, Daejeon, Republic of Korea
| | - Kang-Han Lee
- Department of Biology, Chungnam National University, Daejeon, Republic of Korea
| | - Seonghoon Kim
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - He Tian
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Urs L Böhm
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Einstein Center for Neurosciences, NeuroCure Cluster of Excellence, Charité University of Medicine Berlin, Berlin, Germany
| | - Eric Lowet
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Hua-An Tseng
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Jieun Choi
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
- KAIST Institute for Health Science and Technology, Daejeon, Republic of Korea
| | - Stephani Edwina Lucia
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
- KAIST Institute for Health Science and Technology, Daejeon, Republic of Korea
| | - Seung Hyun Ryu
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Republic of Korea
| | - Márton Rózsa
- Allen Institute for Neural Dynamics, Seattle, WA, USA
| | - Sunghoe Chang
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Pilhan Kim
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
- KAIST Institute for Health Science and Technology, Daejeon, Republic of Korea
- Graduate School of Nanoscience and Technology, KAIST, Daejeon, Republic of Korea
| | - Xue Han
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Kiryl D Piatkevich
- Research Center for Industries of the Future and School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Myunghwan Choi
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, Daejeon, Republic of Korea
| | - Adam E Cohen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - Jae-Byum Chang
- Department of Materials Science and Engineering, KAIST, Daejeon, Republic of Korea
| | - Young-Gyu Yoon
- School of Electrical Engineering, KAIST, Daejeon, Republic of Korea.
- KAIST Institute for Health Science and Technology, Daejeon, Republic of Korea.
- Department of Semiconductor System Engineering, KAIST, Daejeon, Republic of Korea.
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12
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Paolini A, Sharipova D, Lange T, Abdelilah-Seyfried S. Wnt9 directs zebrafish heart tube assembly via a combination of canonical and non-canonical pathway signaling. Development 2023; 150:dev201707. [PMID: 37680191 PMCID: PMC10560569 DOI: 10.1242/dev.201707] [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: 02/16/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023]
Abstract
During zebrafish heart formation, cardiac progenitor cells converge at the embryonic midline where they form the cardiac cone. Subsequently, this structure transforms into a heart tube. Little is known about the molecular mechanisms that control these morphogenetic processes. Here, we use light-sheet microscopy and combine genetic, molecular biological and pharmacological tools to show that the paralogous genes wnt9a/b are required for the assembly of the nascent heart tube. In wnt9a/b double mutants, cardiomyocyte progenitor cells are delayed in their convergence towards the embryonic midline, the formation of the heart cone is impaired and the transformation into an elongated heart tube fails. The same cardiac phenotype occurs when both canonical and non-canonical Wnt signaling pathways are simultaneously blocked by pharmacological inhibition. This demonstrates that Wnt9a/b and canonical and non-canonical Wnt signaling regulate the migration of cardiomyocyte progenitor cells and control the formation of the cardiac tube. This can be partly attributed to their regulation of the timing of cardiac progenitor cell differentiation. Our study demonstrates how these morphogens activate a combination of downstream pathways to direct cardiac morphogenesis.
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Affiliation(s)
- Alessio Paolini
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Dinara Sharipova
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Tim Lange
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
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13
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Shin U, Lee Y. Unraveling DNA Repair Processes In Vivo: Insights from Zebrafish Studies. Int J Mol Sci 2023; 24:13120. [PMID: 37685935 PMCID: PMC10487404 DOI: 10.3390/ijms241713120] [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: 07/21/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
The critical role of the DNA repair system in preserving the health and survival of living organisms is widely recognized as dysfunction within this system can result in a broad range of severe conditions, including neurodegenerative diseases, blood disorders, infertility, and cancer. Despite comprehensive research on the molecular and cellular mechanisms of DNA repair pathways, there remains a significant knowledge gap concerning these processes at an organismal level. The teleost zebrafish has emerged as a powerful model organism for investigating these intricate DNA repair mechanisms. Their utility arises from a combination of their well-characterized genomic information, the ability to visualize specific phenotype outcomes in distinct cells and tissues, and the availability of diverse genetic experimental approaches. In this review, we provide an in-depth overview of recent advancements in our understanding of the in vivo roles of DNA repair pathways. We cover a variety of critical biological processes including neurogenesis, hematopoiesis, germ cell development, tumorigenesis, and aging, with a specific emphasis on findings obtained from the use of zebrafish as a model system. Our comprehensive review highlights the importance of zebrafish in enhancing our understanding of the functions of DNA repair systems at the organismal level and paves the way for future investigations in this field.
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Affiliation(s)
- Unbeom Shin
- School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yoonsung Lee
- Clinical Research Institute, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul 05278, Republic of Korea
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14
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Hagio H, Koyama W, Hosaka S, Song AD, Narantsatsral J, Matsuda K, Shimizu T, Hososhima S, Tsunoda SP, Kandori H, Hibi M. Optogenetic manipulation of neuronal and cardiomyocyte functions in zebrafish using microbial rhodopsins and adenylyl cyclases. eLife 2023; 12:e83975. [PMID: 37589546 PMCID: PMC10435232 DOI: 10.7554/elife.83975] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 07/25/2023] [Indexed: 08/18/2023] Open
Abstract
Even though microbial photosensitive proteins have been used for optogenetics, their use should be optimized to precisely control cell and tissue functions in vivo. We exploited GtCCR4 and KnChR, cation channelrhodopsins from algae, BeGC1, a guanylyl cyclase rhodopsin from a fungus, and photoactivated adenylyl cyclases (PACs) from cyanobacteria (OaPAC) or bacteria (bPAC), to control cell functions in zebrafish. Optical activation of GtCCR4 and KnChR in the hindbrain reticulospinal V2a neurons, which are involved in locomotion, induced swimming behavior at relatively short latencies, whereas activation of BeGC1 or PACs achieved it at long latencies. Activation of GtCCR4 and KnChR in cardiomyocytes induced cardiac arrest, whereas activation of bPAC gradually induced bradycardia. KnChR activation led to an increase in intracellular Ca2+ in the heart, suggesting that depolarization caused cardiac arrest. These data suggest that these optogenetic tools can be used to reveal the function and regulation of zebrafish neurons and cardiomyocytes.
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Affiliation(s)
- Hanako Hagio
- Graduate School of Science, Nagoya University, JapanNagoyaJapan
- Graduate School of Bioagricultural Sciences, Nagoya UniversityNagoyaJapan
- Institute for Advanced Research, Nagoya UniversityNagoyaJapan
| | - Wataru Koyama
- Graduate School of Science, Nagoya University, JapanNagoyaJapan
| | - Shiori Hosaka
- Graduate School of Science, Nagoya University, JapanNagoyaJapan
| | | | | | - Koji Matsuda
- Graduate School of Science, Nagoya University, JapanNagoyaJapan
| | - Takashi Shimizu
- Graduate School of Science, Nagoya University, JapanNagoyaJapan
| | - Shoko Hososhima
- Department of Life Science and Applied Chemistry, Nagoya Institute of TechnologyNagoyaJapan
| | - Satoshi P Tsunoda
- Department of Life Science and Applied Chemistry, Nagoya Institute of TechnologyNagoyaJapan
| | - Hideki Kandori
- Department of Life Science and Applied Chemistry, Nagoya Institute of TechnologyNagoyaJapan
| | - Masahiko Hibi
- Graduate School of Science, Nagoya University, JapanNagoyaJapan
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15
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Shin U, Choi Y, Ko HS, Myung K, Lee S, Cheon CK, Lee Y. A heterozygous mutation in UBE2H in a patient with developmental delay leads to an aberrant brain development in zebrafish. Hum Genomics 2023; 17:44. [PMID: 37208785 DOI: 10.1186/s40246-023-00491-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/08/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Ubiquitin-related rare diseases are generally characterized by developmental delays and mental retardation, but the exact incidence or prevalence is not yet fully understood. The clinical application of next-generation sequencing for pediatric seizures and developmental delay of unknown causes has become common in studies aimed at identification of a causal gene in patients with ubiquitin-related rare diseases that cannot be diagnosed using conventional fluorescence in situ hybridization or chromosome microarray tests. Our study aimed to investigate the effects of ubiquitin-proteasome system on ultra-rare neurodevelopmental diseases, through functional identification of candidate genes and variants. METHODS In our present work, we carried out genome analysis of a patient with clinical phenotypes of developmental delay and intractable convulsion, to identify causal mutations. Further characterization of the candidate gene was performed using zebrafish, through gene knockdown approaches. Transcriptomic analysis using whole embryos of zebrafish knockdown morphants and additional functional studies identified downstream pathways of the candidate gene affecting neurogenesis. RESULTS Through trio-based whole-genome sequencing analysis, we identified a de novo missense variant of the ubiquitin system-related gene UBE2H (c.449C>T; p.Thr150Met) in the proband. Using zebrafish, we found that Ube2h is required for normal brain development. Differential gene expression analysis revealed activation of the ATM-p53 signaling pathway in the absence of Ube2h. Moreover, depletion of ube2h led to induction of apoptosis, specifically in the differentiated neural cells. Finally, we found that a missense mutation in zebrafish, ube2h (c.449C>T; p.Thr150Met), which mimics a variant identified in a patient with neurodevelopmental defects, causes aberrant Ube2h function in zebrafish embryos. CONCLUSION A de novo heterozygous variant in the UBE2H c.449C>T (p.Thr150Met) has been identified in a pediatric patient with global developmental delay and UBE2H is essential for normal neurogenesis in the brain.
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Affiliation(s)
- Unbeom Shin
- School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yeonsong Choi
- Department of Biomedical Engineering, UNIST, Ulsan, 44919, Republic of Korea
- Korean Genomics Center, UNIST, Ulsan, 44919, Republic of Korea
| | - Hwa Soo Ko
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Kyungjae Myung
- Department of Biomedical Engineering, UNIST, Ulsan, 44919, Republic of Korea
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Semin Lee
- Department of Biomedical Engineering, UNIST, Ulsan, 44919, Republic of Korea.
- Korean Genomics Center, UNIST, Ulsan, 44919, Republic of Korea.
| | - Chong Kun Cheon
- Division of Medical Genetics and Metabolism Department of Paediatrics, Pusan National University School of Medicine, Pusan National University Children's Hospital, Yangsan, 50612, Republic of Korea.
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612, Republic of Korea.
| | - Yoonsung Lee
- Clinical Research Institute, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, 05278, Republic of Korea.
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16
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Hasani H, Sun J, Zhu SI, Rong Q, Willomitzer F, Amor R, McConnell G, Cossairt O, Goodhill GJ. Whole-brain imaging of freely-moving zebrafish. Front Neurosci 2023; 17:1127574. [PMID: 37139528 PMCID: PMC10150962 DOI: 10.3389/fnins.2023.1127574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/28/2023] [Indexed: 05/05/2023] Open
Abstract
One of the holy grails of neuroscience is to record the activity of every neuron in the brain while an animal moves freely and performs complex behavioral tasks. While important steps forward have been taken recently in large-scale neural recording in rodent models, single neuron resolution across the entire mammalian brain remains elusive. In contrast the larval zebrafish offers great promise in this regard. Zebrafish are a vertebrate model with substantial homology to the mammalian brain, but their transparency allows whole-brain recordings of genetically-encoded fluorescent indicators at single-neuron resolution using optical microscopy techniques. Furthermore zebrafish begin to show a complex repertoire of natural behavior from an early age, including hunting small, fast-moving prey using visual cues. Until recently work to address the neural bases of these behaviors mostly relied on assays where the fish was immobilized under the microscope objective, and stimuli such as prey were presented virtually. However significant progress has recently been made in developing brain imaging techniques for zebrafish which are not immobilized. Here we discuss recent advances, focusing particularly on techniques based on light-field microscopy. We also draw attention to several important outstanding issues which remain to be addressed to increase the ecological validity of the results obtained.
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Affiliation(s)
- Hamid Hasani
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, United States
| | - Jipeng Sun
- Department of Computer Science, Northwestern University, Evanston, IL, United States
| | - Shuyu I. Zhu
- Departments of Developmental Biology and Neuroscience, Washington University in St. Louis, St. Louis, MO, United States
| | - Qiangzhou Rong
- Departments of Developmental Biology and Neuroscience, Washington University in St. Louis, St. Louis, MO, United States
| | - Florian Willomitzer
- Wyant College of Optical Sciences, University of Arizona, Tucson, AZ, United States
| | - Rumelo Amor
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Gail McConnell
- Centre for Biophotonics, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Oliver Cossairt
- Department of Computer Science, Northwestern University, Evanston, IL, United States
| | - Geoffrey J. Goodhill
- Departments of Developmental Biology and Neuroscience, Washington University in St. Louis, St. Louis, MO, United States
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17
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Pan YK, Perry SF. The control of breathing in fishes - historical perspectives and the path ahead. J Exp Biol 2023; 226:307288. [PMID: 37097020 DOI: 10.1242/jeb.245529] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
The study of breathing in fishes has featured prominently in Journal of Experimental Biology (JEB), particularly during the latter half of the past century. Indeed, many of the seminal discoveries in this important sub-field of comparative respiratory physiology were reported first in JEB. The period spanning 1960-1990 (the 'golden age of comparative respiratory physiology') witnessed intense innovation in the development of methods to study the control of breathing. Many of the guiding principles of piscine ventilatory control originated during this period, including our understanding of the dominance of O2 as the driver of ventilation in fish. However, a critical issue - the identity of the peripheral O2 chemoreceptors - remained unanswered until methods for cell isolation, culture and patch-clamp recording established that gill neuroepithelial cells (NECs) respond to hypoxia in vitro. Yet, the role of the NECs and other putative peripheral or central chemoreceptors in the control of ventilation in vivo remains poorly understood. Further progress will be driven by the implementation of genetic tools, most of which can be used in zebrafish (Danio rerio). These tools include CRISPR/Cas9 for selective gene knockout, and Tol2 systems for transgenesis, the latter of which enables optogenetic stimulation of cellular pathways, cellular ablation and in vivo cell-specific biosensing. Using these methods, the next period of discovery will see the identification of the peripheral sensory pathways that initiate ventilatory responses, and will elucidate the nature of their integration within the central nervous system and their link to the efferent motor neurons that control breathing.
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Affiliation(s)
- Yihang Kevin Pan
- Department of Biology, University of Ottawa, Ottawa, ON, Canada, K1N 6N5
| | - Steve F Perry
- Department of Biology, University of Ottawa, Ottawa, ON, Canada, K1N 6N5
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18
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Coomer C, Naumova D, Talay M, Zolyomi B, Snell N, Sorkac A, Chanchu JM, Cheng J, Roman I, Li J, Robson D, Barnea G, Halpern ME. Transsynaptic labeling and transcriptional control of zebrafish neural circuits. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.03.535421. [PMID: 37066422 PMCID: PMC10103993 DOI: 10.1101/2023.04.03.535421] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Deciphering the connectome, the ensemble of synaptic connections that underlie brain function is a central goal of neuroscience research. The trans-Tango genetic approach, initially developed for anterograde transsynaptic tracing in Drosophila, can be used to map connections between presynaptic and postsynaptic partners and to drive gene expression in target neurons. Here, we describe the successful adaptation of trans-Tango to visualize neural connections in a living vertebrate nervous system, that of the zebrafish. Connections were validated between synaptic partners in the larval retina and brain. Results were corroborated by functional experiments in which optogenetic activation of retinal ganglion cells elicited responses in neurons of the optic tectum, as measured by trans-Tango-dependent expression of a genetically encoded calcium indicator. Transsynaptic signaling through trans-Tango reveals predicted as well as previously undescribed synaptic connections, providing a valuable in vivo tool to monitor and interrogate neural circuits over time.
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19
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Jia X, Feng Y, Ma W, Zhao W, Liu Y, Jing G, Tian J, Yang T, Zhang C. A fluidic platform for mobility evaluation of zebrafish with gene deficiency. Front Mol Neurosci 2023; 16:1114928. [PMID: 37089692 PMCID: PMC10117665 DOI: 10.3389/fnmol.2023.1114928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 03/13/2023] [Indexed: 04/09/2023] Open
Abstract
IntroductionZebrafish is a suitable animal model for molecular genetic tests and drug discovery due to its characteristics including optical transparency, genetic manipulability, genetic similarity to humans, and cost-effectiveness. Mobility of the zebrafish reflects pathological conditions leading to brain disorders, disrupted motor functions, and sensitivity to environmental challenges. However, it remains technologically challenging to quantitively assess zebrafish's mobility in a flowing environment and simultaneously monitor cellular behavior in vivo.MethodsWe herein developed a facile fluidic device using mechanical vibration to controllably generate various flow patterns in a droplet housing single zebrafish, which mimics its dynamically flowing habitats.ResultsWe observe that in the four recirculating flow patterns, there are two equilibrium stagnation positions for zebrafish constrained in the droplet, i.e., the “source” with the outward flow and the “sink” with the inward flow. Wild-type zebrafish, whose mobility remains intact, tend to swim against the flow and fight to stay at the source point. A slight deviation from streamline leads to an increased torque pushing the zebrafish further away, whereas zebrafish with motor neuron dysfunction caused by lipin-1 deficiency are forced to stay in the “sink,” where both their head and tail align with the flow direction. Deviation angle from the source point can, therefore, be used to quantify the mobility of zebrafish under flowing environmental conditions. Moreover, in a droplet of comparable size, single zebrafish can be effectively restrained for high-resolution imaging.ConclusionUsing the proposed methodology, zebrafish mobility reflecting pathological symptoms can be quantitively investigated and directly linked to cellular behavior in vivo.
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Affiliation(s)
- Xiaoyu Jia
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics and Photon-Technology, Northwest University, Shaanxi, Xi'an, China
- School of Physics, Northwest University, Shaanxi, Xi'an, China
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Shaanxi, Xi'an, China
| | - Yibo Feng
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics and Photon-Technology, Northwest University, Shaanxi, Xi'an, China
- School of Physics, Northwest University, Shaanxi, Xi'an, China
| | - Wenju Ma
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics and Photon-Technology, Northwest University, Shaanxi, Xi'an, China
| | - Wei Zhao
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics and Photon-Technology, Northwest University, Shaanxi, Xi'an, China
| | - Yanan Liu
- School of Physics, Northwest University, Shaanxi, Xi'an, China
| | - Guangyin Jing
- School of Physics, Northwest University, Shaanxi, Xi'an, China
- *Correspondence: Guangyin Jing
| | - Jing Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Shaanxi, Xi'an, China
- Jing Tian
| | - Tao Yang
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Shaanxi, Xi'an, China
- Tao Yang
| | - Ce Zhang
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics and Photon-Technology, Northwest University, Shaanxi, Xi'an, China
- School of Physics, Northwest University, Shaanxi, Xi'an, China
- Ce Zhang
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20
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Baraban M, Gordillo Pi C, Bonnet I, Gilles JF, Lejeune C, Cabrera M, Tep F, Breau MA. Actomyosin contractility in olfactory placode neurons opens the skin epithelium to form the zebrafish nostril. Dev Cell 2023; 58:361-375.e5. [PMID: 36841243 PMCID: PMC10023511 DOI: 10.1016/j.devcel.2023.02.001] [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: 07/15/2022] [Revised: 12/07/2022] [Accepted: 02/02/2023] [Indexed: 02/27/2023]
Abstract
Despite their barrier function, epithelia can locally lose their integrity to create physiological openings during morphogenesis. The mechanisms driving the formation of these epithelial breaks are only starting to be investigated. Here, we study the formation of the zebrafish nostril (the olfactory orifice), which opens in the skin epithelium to expose the olfactory neurons to external odorant cues. Combining live imaging, drug treatments, laser ablation, and tissue-specific functional perturbations, we characterize a mechanical interplay between olfactory placode neurons and the skin, which plays a crucial role in the formation of the orifice: the neurons pull on the overlying skin cells in an actomyosin-dependent manner which, in combination with a local reorganization of the skin epithelium, triggers the opening of the orifice. This work identifies an original mechanism to break an epithelial sheet, in which an adjacent group of cells mechanically assists the epithelium to induce its local rupture.
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Affiliation(s)
- Marion Baraban
- Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Paris-Seine (IBPS), Developmental Biology Laboratory, 75005 Paris, France; Laboratoire Jean Perrin, 75005 Paris, France.
| | - Clara Gordillo Pi
- Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Paris-Seine (IBPS), Developmental Biology Laboratory, 75005 Paris, France
| | - Isabelle Bonnet
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physico Chimie Curie, 75005 Paris, France
| | | | - Camille Lejeune
- Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Paris-Seine (IBPS), Developmental Biology Laboratory, 75005 Paris, France
| | - Mélody Cabrera
- Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Paris-Seine (IBPS), Developmental Biology Laboratory, 75005 Paris, France
| | - Florian Tep
- Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Paris-Seine (IBPS), Developmental Biology Laboratory, 75005 Paris, France
| | - Marie Anne Breau
- Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Paris-Seine (IBPS), Developmental Biology Laboratory, 75005 Paris, France; Laboratoire Jean Perrin, 75005 Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.
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21
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Everson JL, Tseng YC, Eberhart JK. High-throughput detection of craniofacial defects in fluorescent zebrafish. Birth Defects Res 2023; 115:371-389. [PMID: 36369674 PMCID: PMC9898129 DOI: 10.1002/bdr2.2127] [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: 08/25/2022] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 11/14/2022]
Abstract
Losses and malformations of cranial neural crest cell (cNCC) derivatives are a hallmark of several common brain and face malformations. Nevertheless, the etiology of these cNCC defects remains unknown for many cases, suggesting a complex basis involving interactions between genetic and/or environmental factors. However, the sheer number of possible factors (thousands of genes and hundreds of thousands of toxicants) has hindered identification of specific interactions. Here, we develop a high-throughput analysis that will enable faster identification of multifactorial interactions in the genesis of craniofacial defects. Zebrafish embryos expressing a fluorescent marker of cNCCs (fli1:EGFP) were exposed to a pathway inhibitor standard or environmental toxicant, and resulting changes in fluorescence were measured in high-throughput using a fluorescent microplate reader to approximate cNCC losses. Embryos exposed to the environmental Hedgehog pathway inhibitor piperonyl butoxide (PBO), a Hedgehog pathway inhibitor standard, or alcohol (ethanol) exhibited reduced fli1:EGFP fluorescence at one day post fertilization, which corresponded with craniofacial defects at five days post fertilization. Combining PBO and alcohol in a co-exposure paradigm synergistically reduced fluorescence, demonstrating a multifactorial interaction. Using pathway reporter transgenics, we show that the plate reader assay is sensitive at detecting alterations in Hedgehog signaling, a critical regulator of craniofacial development. We go on to demonstrate that this technique readily detects defects in other important cell types, namely neurons. Together, these findings demonstrate this novel in vivo platform can predict developmental abnormalities and multifactorial interactions in high-throughput.
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Affiliation(s)
- Joshua L. Everson
- Department of Molecular Biosciences, School of Natural Sciences, University of Texas at Austin, Austin, Texas, USA,Waggoner Center for Alcohol and Addiction Research, School of Pharmacy, University of Texas at Austin, Austin, Texas, USA
| | - Yung-Chia Tseng
- Department of Molecular Biosciences, School of Natural Sciences, University of Texas at Austin, Austin, Texas, USA
| | - Johann K. Eberhart
- Department of Molecular Biosciences, School of Natural Sciences, University of Texas at Austin, Austin, Texas, USA,Waggoner Center for Alcohol and Addiction Research, School of Pharmacy, University of Texas at Austin, Austin, Texas, USA
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22
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Wang Z, Li K, Xu Y, Song Z, Lan X, Pan C, Zhang S, Foulkes NS, Zhao H. Ferroptosis contributes to nickel-induced developmental neurotoxicity in zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:160078. [PMID: 36372175 DOI: 10.1016/j.scitotenv.2022.160078] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/29/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Nickel (Ni) is a widely utilized heavy metal that can cause environmental pollution and health hazards. Its safety has attracted the attention of both the environmental ecology and public health fields. While the central nervous system (CNS) is one of the main targets of Ni, its neurotoxicity and the underlying mechanisms remain unclear. Here, by taking advantage of the zebrafish model for live imaging, genetic analysis and neurobehavioral studies, we reveal that the neurotoxic effects induced by exposure to environmentally relevant levels of Ni are closely related to ferroptosis, a newly-described form of iron-mediated cell death. In vivo two-photon imaging, neurobehavioral analysis and transcriptome sequencing consistently demonstrate that early neurodevelopment, neuroimmune function and vasculogenesis in zebrafish larvae are significantly affected by environmental Ni exposure. Importantly, exposure to various concentrations of Ni activates the ferroptosis pathway, as demonstrated by physiological/biochemical tests, as well as the expression of ferroptosis markers. Furthermore, pharmacological intervention of ferroptosis via deferoxamine (DFO), a classical iron chelating agent, strongly implicates iron dyshomeostasis and ferroptosis in these Ni-induced neurotoxic effects. Thus, this study elucidates the cellular and molecular mechanisms underlying Ni neurotoxicity, with implications for our understanding of the physiologically damaging effects of other environmental heavy metal pollutants.
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Affiliation(s)
- Zuo Wang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Kemin Li
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Yanyi Xu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Zan Song
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Shengxiang Zhang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Nicholas S Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Haiyu Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China.
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23
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Rapid and reversible optogenetic silencing of synaptic transmission by clustering of synaptic vesicles. Nat Commun 2022; 13:7827. [PMID: 36535932 PMCID: PMC9763335 DOI: 10.1038/s41467-022-35324-z] [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: 02/24/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Acutely silencing specific neurons informs about their functional roles in circuits and behavior. Existing optogenetic silencers include ion pumps, channels, metabotropic receptors, and tools that damage the neurotransmitter release machinery. While the former hyperpolarize the cell, alter ionic gradients or cellular biochemistry, the latter allow only slow recovery, requiring de novo synthesis. Thus, tools combining fast activation and reversibility are needed. Here, we use light-evoked homo-oligomerization of cryptochrome CRY2 to silence synaptic transmission, by clustering synaptic vesicles (SVs). We benchmark this tool, optoSynC, in Caenorhabditis elegans, zebrafish, and murine hippocampal neurons. optoSynC clusters SVs, observable by electron microscopy. Locomotion silencing occurs with tauon ~7.2 s and recovers with tauoff ~6.5 min after light-off. optoSynC can inhibit exocytosis for several hours, at very low light intensities, does not affect ion currents, biochemistry or synaptic proteins, and may further allow manipulating different SV pools and the transfer of SVs between them.
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24
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TDP-43 condensates and lipid droplets regulate the reactivity of microglia and regeneration after traumatic brain injury. Nat Neurosci 2022; 25:1608-1625. [PMID: 36424432 DOI: 10.1038/s41593-022-01199-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 10/11/2022] [Indexed: 11/27/2022]
Abstract
Decreasing the activation of pathology-activated microglia is crucial to prevent chronic inflammation and tissue scarring. In this study, we used a stab wound injury model in zebrafish and identified an injury-induced microglial state characterized by the accumulation of lipid droplets and TAR DNA-binding protein of 43 kDa (TDP-43)+ condensates. Granulin-mediated clearance of both lipid droplets and TDP-43+ condensates was necessary and sufficient to promote the return of microglia back to the basal state and achieve scarless regeneration. Moreover, in postmortem cortical brain tissues from patients with traumatic brain injury, the extent of microglial activation correlated with the accumulation of lipid droplets and TDP-43+ condensates. Together, our results reveal a mechanism required for restoring microglia to a nonactivated state after injury, which has potential for new therapeutic applications in humans.
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25
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Brain milieu induces early microglial maturation through the BAX-Notch axis. Nat Commun 2022; 13:6117. [PMID: 36253375 PMCID: PMC9576735 DOI: 10.1038/s41467-022-33836-2] [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: 11/23/2021] [Accepted: 09/30/2022] [Indexed: 12/24/2022] Open
Abstract
Microglia are derived from primitive myeloid cells and gain their early identity in the embryonic brains. However, the mechanism by which the brain milieu confers microglial maturation signature remains elusive. Here, we demonstrate that the baxcq55 zebrafish and Baxtm1Sjk mouse embryos exhibit similarly defective early microglial maturation. BAX, a typical pro-apoptotic factor, is highly enriched in neuronal cells and regulates microglial maturation through both pro-apoptotic and non-apoptotic mechanisms. BAX regulates dlb via the CaMKII-CREB axis calcium-dependently in living neurons while ensuring the efficient Notch activation in the immigrated pre-microglia by apoptotic neurons. Notch signaling is conserved in supporting embryonic microglia maturation. Compromised microglial development occurred in the Cx3cr1Cre/+Rbpjfl/fl embryonic mice; however, microglia acquire their appropriate signature when incubated with DLL3 in vitro. Thus, our findings elucidate a BAX-CaMKII-CREB-Notch network triggered by the neuronal milieu in microglial development, which may provide innovative insights for targeting microglia in neuronal disorder treatment.
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26
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Zou D, Qin J, Hu W, Wei Z, Zhan Y, He Y, Zhao C, Li L. Macrophages Rapidly Seal off the Punctured Zebrafish Larval Brain through a Vital Honeycomb Network Structure. Int J Mol Sci 2022; 23:ijms231810551. [PMID: 36142462 PMCID: PMC9503817 DOI: 10.3390/ijms231810551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/30/2022] [Accepted: 09/07/2022] [Indexed: 11/26/2022] Open
Abstract
There is accumulating evidence that macrophages play additional important roles in tissue damage besides their typical phagocytosis. Although the aggregation of macrophages on injured sites has long been observed, few researchers have focused on the role of the overall structure of macrophage aggregation. In this study, we developed a standardized traumatic brain injury (TBI) model in zebrafish larvae to mimic edema and brain tissue spillage symptoms after severe brain trauma. Using time-lapse imaging, we showed that macrophages/microglia in zebrafish larvae responded rapidly and dominated the surface of injured tissue, forming a meaningful honeycomb network structure through their compact aggregation and connection. Disrupting this structure led to fatal edema-like symptoms with severe loss of brain tissue. Using the RNA-Seq, together with the manipulation of in vitro cell lines, we found that collagen IV was indispensable to the formation of honeycomb network structures. Our study thus revealed a novel perspective regarding macrophages forming a protective compact structure with collagen IV. This honeycomb network structure acted as a physical barrier to prevent tissue loss and maintain brain homeostasis after TBI. This study may provide new evidence of macrophages’ function for the rapid protection of brain tissue after brain injury.
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Affiliation(s)
- Dandan Zou
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jie Qin
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Wenlong Hu
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Zongfang Wei
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yandong Zhan
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yuepeng He
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Congjian Zhao
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, School of Biomedical Engineering and Informatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Li Li
- Research Center of Stem Cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Correspondence:
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27
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Xi J, Zhang Z, Wang Z, Wu Q, He Y, Xu Y, Ding Z, Zhao H, Da H, Zhang F, Zhao H, Fang J. Hinokitiol functions as a ferroptosis inhibitor to confer neuroprotection. Free Radic Biol Med 2022; 190:202-215. [PMID: 35985562 DOI: 10.1016/j.freeradbiomed.2022.08.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 12/22/2022]
Abstract
The intrinsic link of ferroptosis to neurodegeneration, such as Parkinson's disease and Alzheimer's disease, has set promises to apply ferroptosis inhibitors for treatment of neurodegenerative disorders. Herein, we report that the natural small molecule hinokitiol (Hino) functions as a potent ferroptosis inhibitor to rescue neuronal damages in vitro and in vivo. The action mechanisms of Hino involve chelating irons and activating cytoprotective transcription factor Nrf2 to upregulate the antioxidant genes including solute carrier family 7 member 11, glutathione peroxidase 4 and Heme oxygenase-1. In vivo studies demonstrate that Hino rescues the deficits of locomotor activity and neurodevelopment in zebrafishes. In addition, Hino shows the efficient blood-brain barrier permeability in mice, supporting the application of Hino for brain disorders. Paclitaxel is one of the most widely used broad-spectrum antineoplastic agents. However, its neurotoxic side effect is a severe concern. We demonstrate that the neurotoxicity of paclitaxel is ferroptosis-related and Hino also alleviates the paclitaxel-induced neurotoxicity without compromising its cytotoxicity to cancer cells. Hino also salvages the neurobehavioral impairment by paclitaxel in zebrafishes. Collectively, the discovery of Hino as a novel ferroptosis inhibitor and disclosure of its action mechanisms establish a foundation for the further development of Hino as a neuroprotective agent.
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Affiliation(s)
- Junmin Xi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China; School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou, 730000, China
| | - Zhijun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Zuo Wang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou, 730000, China
| | - Qingfeng Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Ying He
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yanyi Xu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou, 730000, China
| | - Zhenjiang Ding
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Huanhuan Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Honghong Da
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Fang Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Haiyu Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou, 730000, China.
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China; School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China.
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28
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Etchegaray E, Baas D, Naville M, Haftek-Terreau Z, Volff JN. The neurodevelopmental gene MSANTD2 belongs to a gene family formed by recurrent molecular domestication of Harbinger transposons at the base of vertebrates. Mol Biol Evol 2022; 39:msac173. [PMID: 35980103 PMCID: PMC9392472 DOI: 10.1093/molbev/msac173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/06/2022] [Accepted: 08/02/2022] [Indexed: 11/18/2022] Open
Abstract
The formation of new genes is a major source of organism evolutionary innovation. Beyond their mutational effects, transposable elements can be co-opted by host genomes to form different types of sequences including novel genes, through a mechanism named molecular domestication.We report the formation of four genes through molecular domestication of Harbinger transposons, three in a common ancestor of jawed vertebrates about 500 million years ago and one in sarcopterygians approx. 430 million years ago. Additionally, one processed pseudogene arose approx. 60 million years ago in simians. In zebrafish, Harbinger-derived genes are expressed during early development but also in adult tissues, and predominantly co-expressed in male brain. In human, expression was detected in multiple organs, with major expression in the brain particularly during fetal development. We used CRISPR/Cas9 with direct gene knock-out in the F0 generation and the morpholino antisense oligonucleotide knock-down technique to study in zebrafish the function of one of these genes called MSANTD2, which has been suggested to be associated to neuro-developmental diseases such as autism spectrum disorders and schizophrenia in human. MSANTD2 inactivation led to developmental delays including tail and nervous system malformation at one day post fertilization. Affected embryos showed dead cell accumulation, major anatomical defects characterized by impaired brain ventricle formation and alterations in expression of some characteristic genes involved in vertebrate nervous system development. Hence, the characterization of MSANTD2 and other Harbinger-derived genes might contribute to a better understanding of the genetic innovations having driven the early evolution of the vertebrate nervous system.
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Affiliation(s)
- Ema Etchegaray
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, UCBL1, CNRS UMR 5242, Lyon, France
| | - Dominique Baas
- Unité MeLiS, UCBL-CNRS UMR 5284, INSERM U1314, Lyon, France
| | - Magali Naville
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, UCBL1, CNRS UMR 5242, Lyon, France
| | - Zofia Haftek-Terreau
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, UCBL1, CNRS UMR 5242, Lyon, France
| | - Jean Nicolas Volff
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, UCBL1, CNRS UMR 5242, Lyon, France
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29
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Ochenkowska K, Herold A, Samarut É. Zebrafish Is a Powerful Tool for Precision Medicine Approaches to Neurological Disorders. Front Mol Neurosci 2022; 15:944693. [PMID: 35875659 PMCID: PMC9298522 DOI: 10.3389/fnmol.2022.944693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/17/2022] [Indexed: 12/17/2022] Open
Abstract
Personalized medicine is currently one of the most promising tools which give hope to patients with no suitable or no available treatment. Patient-specific approaches are particularly needed for common diseases with a broad phenotypic spectrum as well as for rare and yet-undiagnosed disorders. In both cases, there is a need to understand the underlying mechanisms and how to counteract them. Even though, during recent years, we have been observing the blossom of novel therapeutic techniques, there is still a gap to fill between bench and bedside in a patient-specific fashion. In particular, the complexity of genotype-to-phenotype correlations in the context of neurological disorders has dampened the development of successful disease-modifying therapeutics. Animal modeling of human diseases is instrumental in the development of therapies. Currently, zebrafish has emerged as a powerful and convenient model organism for modeling and investigating various neurological disorders. This model has been broadly described as a valuable tool for understanding developmental processes and disease mechanisms, behavioral studies, toxicity, and drug screening. The translatability of findings obtained from zebrafish studies and the broad prospect of human disease modeling paves the way for developing tailored therapeutic strategies. In this review, we will discuss the predictive power of zebrafish in the discovery of novel, precise therapeutic approaches in neurosciences. We will shed light on the advantages and abilities of this in vivo model to develop tailored medicinal strategies. We will also investigate the newest accomplishments and current challenges in the field and future perspectives.
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Affiliation(s)
- Katarzyna Ochenkowska
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada.,Department of Neuroscience, Université de Montréal, Montreal, QC, Canada
| | - Aveeva Herold
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada.,Department of Neuroscience, Université de Montréal, Montreal, QC, Canada
| | - Éric Samarut
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada.,Department of Neuroscience, Université de Montréal, Montreal, QC, Canada.,Modelis Inc., Montreal, QC, Canada
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30
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Hevia CF, Engel-Pizcueta C, Udina F, Pujades C. The neurogenic fate of the hindbrain boundaries relies on Notch3-dependent asymmetric cell divisions. Cell Rep 2022; 39:110915. [PMID: 35675784 DOI: 10.1016/j.celrep.2022.110915] [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: 08/23/2021] [Revised: 01/16/2022] [Accepted: 05/11/2022] [Indexed: 11/19/2022] Open
Abstract
Elucidating the cellular and molecular mechanisms that regulate the balance between progenitor cell proliferation and neuronal differentiation in the construction of the embryonic brain demands the combination of cell lineage and functional approaches. Here, we generate the comprehensive lineage of hindbrain boundary cells by using a CRISPR-based knockin zebrafish transgenic line that specifically labels the boundaries. We unveil that boundary cells asynchronously engage in neurogenesis undergoing a functional transition from neuroepithelial progenitors to radial glia cells, coinciding with the onset of Notch3 signaling that triggers their asymmetrical cell division. Upon notch3 loss of function, boundary cells lose radial glia properties and symmetrically divide undergoing neuronal differentiation. Finally, we show that the fate of boundary cells is to become neurons, the subtype of which relies on their axial position, suggesting that boundary cells contribute to refine the number and proportion of the distinct neuronal populations.
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Affiliation(s)
| | | | - Frederic Udina
- Department of Economics and Business, Universitat Pompeu Fabra, 08002 Barcelona, Spain; Data Science Center, Barcelona School of Economics, 08002 Barcelona, Spain
| | - Cristina Pujades
- Department of Medicine and Life Sciences, 08003 Barcelona, Spain.
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31
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Moriya S, Hanazono M, Fukuhara T, Iwase K, Hattori N, Takiguchi M. A53T mutant α-synuclein fibrils formed in macrophage are spread to neurons. Cell Mol Life Sci 2022; 79:234. [PMID: 35397671 PMCID: PMC11073293 DOI: 10.1007/s00018-022-04263-9] [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: 12/14/2021] [Revised: 03/15/2022] [Accepted: 03/18/2022] [Indexed: 11/03/2022]
Abstract
Lewy body (LB), which mainly consists of abnormal α-synuclein (αS) aggregates, is a histological hallmark of Parkinson's disease (PD). αS aggregation and LB inclusions are induced by spreading αS fibrils to neurons; therefore, the formation and transmission of αS fibrils to neurons may play an essential role in initiating LB formation in neurons. αS expressed in neurons is released into the extracellular space and taken up by macrophages and microglia; therefore, we hypothesized that macrophages/microglia play a role in the formation and spread of αS fibrils. In this study, we aimed to investigate the involvement of macrophages/microglia in the formation and spread of αS fibrils using transgenic animals that express human αS in macrophages/microglia. Transgenic zebrafish expressing A53T mutated αS (αS_A53T) in macrophages/microglia revealed αS accumulation in neurons. Transcriptome analysis by RNA-seq of human αS and αS_A53T expressing zebrafish revealed that kinase genes and E3 ubiquitin protein ligase genes were significantly high, and neuronal activity and transport-related Gene Ontology terms were also isolated. Meanwhile, αS_A53T monomers were taken up by A-THP-1 cells; processed to larger molecules, which could be αS fibrils; and released from macrophage cells. Furthermore, the ubiquitin-proteasome system modulated αS fibrils in A-THP-1 cells. αS fibrils suggest being formed from monomers in macrophages and spread to neurons to induce αS aggregates. Therefore, macrophages may play an essential role in the formation of αS aggregates and the pathogenesis of PD.
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Affiliation(s)
- Shogo Moriya
- Department of Biochemistry and Genetics, Chiba University Graduate School of Medicine, Chiba, Japan.
| | - Michiko Hanazono
- Department of Biochemistry and Genetics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takeshi Fukuhara
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
- Neurodegenerative Disorders Collaborative Laboratory, RIKEN Center for Brain Science, Saitama, Japan
| | - Katsuro Iwase
- Department of Biochemistry and Genetics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
- Neurodegenerative Disorders Collaborative Laboratory, RIKEN Center for Brain Science, Saitama, Japan
| | - Masaki Takiguchi
- Department of Biochemistry and Genetics, Chiba University Graduate School of Medicine, Chiba, Japan
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32
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Habicher J, Manuel R, Pedroni A, Ferebee C, Ampatzis K, Boije H. A new transgenic reporter line reveals expression of protocadherin 9 at a cellular level within the zebrafish central nervous system. Gene Expr Patterns 2022; 44:119246. [DOI: 10.1016/j.gep.2022.119246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/07/2022] [Accepted: 04/09/2022] [Indexed: 11/16/2022]
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33
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Gillies S, Verdon R, Stone V, Brown DM, Henry T, Tran L, Tucker C, Rossi AG, Tyler CR, Johnston HJ. Transgenic zebrafish larvae as a non-rodent alternative model to assess pro-inflammatory (neutrophil) responses to nanomaterials. Nanotoxicology 2022; 16:333-354. [PMID: 35797989 DOI: 10.1080/17435390.2022.2088312] [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: 10/17/2022]
Abstract
Hazard studies for nanomaterials (NMs) commonly assess whether they activate an inflammatory response. Such assessments often rely on rodents, but alternative models are needed to support the implementation of the 3Rs principles. Zebrafish (Danio rerio) offer a viable alternative for screening NM toxicity by investigating inflammatory responses. Here, we used non-protected life stages of transgenic zebrafish (Tg(mpx:GFP)i114) with fluorescently-labeled neutrophils to assess inflammatory responses to silver (Ag) and zinc oxide (ZnO) NMs using two approaches. Zebrafish were exposed to NMs via water following a tail fin injury, or NMs were microinjected into the otic vesicle. Zebrafish were exposed to NMs at 3 days post-fertilization (dpf) and neutrophil accumulation at the injury or injection site was quantified at 0, 4, 6, 8, 24, and 48 h post-exposure. Zebrafish larvae were also exposed to fMLF, LTB4, CXCL-8, C5a, and LPS to identify a suitable positive control for inflammation induction. Aqueous exposure to Ag and ZnO NMs stimulated an enhanced and sustained neutrophilic inflammatory response in injured zebrafish larvae, with a greater response observed for Ag NMs. Following microinjection, Ag NMs stimulated a time-dependent neutrophil accumulation in the otic vesicle which peaked at 48 h. LTB4 was identified as a positive control for studies investigating inflammatory responses in injured zebrafish following aqueous exposure, and CXCL-8 for microinjection studies that assess responses in the otic vesicle. Our findings support the use of transgenic zebrafish to rapidly screen the pro-inflammatory effects of NMs, with potential for wider application in assessing chemical safety (e.g. pharmaceuticals).
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Affiliation(s)
| | | | | | | | | | - Lang Tran
- Institute of Occupational Medicine, Edinburgh, UK
| | - Carl Tucker
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Adriano G Rossi
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Charles R Tyler
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
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34
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Schwarzer S, Rekhade DR, Machate A, Spieß S, Geffarth M, Ezhkova D, Hans S. Reactivation of the Neurogenic Niche in the Adult Zebrafish Statoacoustic Ganglion Following a Mechanical Lesion. Front Cell Dev Biol 2022; 10:850624. [PMID: 35372332 PMCID: PMC8964994 DOI: 10.3389/fcell.2022.850624] [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: 01/07/2022] [Accepted: 02/03/2022] [Indexed: 11/13/2022] Open
Abstract
Sensorineural hearing loss is caused by the loss of sensory hair cells and/or their innervating neurons within the inner ear and affects millions of people worldwide. In mammals, including humans, the underlying cell types are only produced during fetal stages making loss of these cells and the resulting consequences irreversible. In contrast, zebrafish produce sensory hair cells throughout life and additionally possess the remarkable capacity to regenerate them upon lesion. Recently, we showed that also inner ear neurogenesis continues to take place in the zebrafish statoacoustic ganglion (SAG) well into adulthood. The neurogenic niche displays presumptive stem cells, proliferating Neurod-positive progenitors and a high level of neurogenesis at juvenile stages. It turns dormant at adult stages with only a few proliferating presumptive stem cells, no proliferating Neurod-positive progenitors, and very low levels of newborn neurons. Whether the neurogenic niche can be reactivated and whether SAG neurons can regenerate upon damage is unknown. To study the regenerative capacity of the SAG, we established a lesion paradigm using injections into the otic capsule of the right ear. Upon lesion, the number of apoptotic cells increased, and immune cells infiltrated the SAG of the lesioned side. Importantly, the Neurod-positive progenitor cells re-entered the cell cycle displaying a peak in proliferation at 8 days post lesion before they returned to homeostatic levels at 57 days post lesion. In parallel to reactive proliferation, we observed increased neurogenesis from the Neurod-positive progenitor pool. Reactive neurogenesis started at around 4 days post lesion peaking at 8 days post lesion before the neurogenesis rate decreased again to low homeostatic levels at 57 days post lesion. Additionally, administration of the thymidine analog BrdU and, thereby, labeling proliferating cells and their progeny revealed the generation of new sensory neurons within 19 days post lesion. Taken together, we show that the neurogenic niche of the adult zebrafish SAG can indeed be reactivated to re-enter the cell cycle and to increase neurogenesis upon lesion. Studying the underlying genes and pathways in zebrafish will allow comparative studies with mammalian species and might provide valuable insights into developing cures for auditory and vestibular neuropathies.
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Xu Y, Zhao H, Wang Z, Gao H, Liu J, Li K, Song Z, Yuan C, Lan X, Pan C, Zhang S. Developmental exposure to environmental levels of cadmium induces neurotoxicity and activates microglia in zebrafish larvae: From the perspectives of neurobehavior and neuroimaging. CHEMOSPHERE 2022; 291:132802. [PMID: 34752834 DOI: 10.1016/j.chemosphere.2021.132802] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/15/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a worldwide environmental pollutant that postures serious threats to humans and ecosystems. Over the years, its adverse effects on the central nervous system (CNS) have been concerned, whereas the underlying cellular/molecular mechanisms remain unclear. In this study, taking advantages of zebrafish model in high-throughput imaging and behavioral tests, we have explored the potential developmental neurotoxicity of Cd at environmentally relevant levels, from the perspectives of neurobehavior and neuroimaging. Briefly, Cd2+ exposure resulted in a general impairment of zebrafish early development. Zebrafish neurobehavioral patterns including locomotion and reactivity to environmental signals were significantly perturbed upon Cd2+ exposure. Importantly, a combination of in vivo two-photon neuroimaging, flow cytometry and gene expression analyses revealed notable neurodevelopmental disorders as well as neuroimmune responses induced by Cd2+ exposure. Both cell-cycle arrest and apoptosis contributed jointly to a significant decrease of neuronal density in zebrafish larvae exposed to Cd2+. The dramatic morphological alterations of microglia from multi-branched to amoeboid, the microgliosis, as well as the modulation of gene expression profiles demonstrated a strong activation of microglia and neuroinflammation triggered by environmental levels of Cd2+. Together, our study points to the developmental toxicity of Cd in inducing CNS impairment and neuroinflammation thereby providing visualized etiological evidence of this heavy metal induced neurodevelopmental disorders. It's tempting to speculate that this research model might represent a promising tool not only for understanding the molecular mechanisms of Cd-induced neurotoxicity, but also for developing pharmacotherapies to mitigate the neurological damage resulting from exposure to Cd, and other neurotoxicants.
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Affiliation(s)
- Yanyi Xu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Haiyu Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China.
| | - Zuo Wang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Hao Gao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Junru Liu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Kemin Li
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Zan Song
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Cong Yuan
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, 712100, Shaanxi Province, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, 712100, Shaanxi Province, China
| | - Shengxiang Zhang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China.
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Chowdhury K, Lin S, Lai SL. Comparative Study in Zebrafish and Medaka Unravels the Mechanisms of Tissue Regeneration. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.783818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tissue regeneration has been in the spotlight of research for its fascinating nature and potential applications in human diseases. The trait of regenerative capacity occurs diversely across species and tissue contexts, while it seems to decline over evolution. Organisms with variable regenerative capacity are usually distinct in phylogeny, anatomy, and physiology. This phenomenon hinders the feasibility of studying tissue regeneration by directly comparing regenerative with non-regenerative animals, such as zebrafish (Danio rerio) and mice (Mus musculus). Medaka (Oryzias latipes) is a fish model with a complete reference genome and shares a common ancestor with zebrafish approximately 110–200 million years ago (compared to 650 million years with mice). Medaka shares similar features with zebrafish, including size, diet, organ system, gross anatomy, and living environment. However, while zebrafish regenerate almost every organ upon experimental injury, medaka shows uneven regenerative capacity. Their common and distinct biological features make them a unique platform for reciprocal analyses to understand the mechanisms of tissue regeneration. Here we summarize current knowledge about tissue regeneration in these fish models in terms of injured tissues, repairing mechanisms, available materials, and established technologies. We further highlight the concept of inter-species and inter-organ comparisons, which may reveal mechanistic insights and hint at therapeutic strategies for human diseases.
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Wang Z, Zhao H, Xu Y, Zhao J, Song Z, Bi Y, Li Y, Lan X, Pan C, Foulkes NS, Zhang S. Early-life lead exposure induces long-term toxicity in the central nervous system: From zebrafish larvae to juveniles and adults. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150185. [PMID: 34509844 DOI: 10.1016/j.scitotenv.2021.150185] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Lead induced neurotoxicity has been extensively investigated. However, the potential connections between early-life lead exposure and the frequently observed aberrant neurobehavior in juveniles and adults remain unclear. In this study, zebrafish model was used to explore the immediate and long-term effects of early-life exposure to environmental levels of lead on the central nervous system, and the cellular and molecular mechanisms underlying the consequent abnormal neurobehavior. Lead exposed zebrafish larvae exhibited neurologic damage and defective neurobehavior. Consistent with clinical studies, despite being raised in lead-free conditions, the juvenile and adult fish experienced lead exposure earlier, presented ADHD-like symptoms, and the adult fish exhibited remarkably affected vitality and shoaling behavior. Their anxiety levels were elevated, whereas their social interaction, as well as learning and memory were strongly depressed. The expression profiles of key genes involved in neurodevelopment and neurotransmitter systems were significantly modulated, in similar patterns as in the larval stage. Notably, the density of neurons was decreased and varicosities in neuronal axons were frequently observed in the lead-exposed groups. It's tempting to speculate that the disruption of early neurodevelopment as well as the prolonged modulation of neuromorphic and neurotransmitter systems contribute to the lead-induced neurobehavioral disorders observed in juveniles and adulthood.
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Affiliation(s)
- Zuo Wang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Haiyu Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China.
| | - Yanyi Xu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Jianing Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Zan Song
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Yi Bi
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Yang Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Nicholas S Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Shengxiang Zhang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
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Shu L, Xiao N, Qin J, Tian Q, Zhang Y, Li H, Liu J, Li Q, Gu W, Wang P, Wang H, Mao X. The Role of Microtubule Associated Serine/Threonine Kinase 3 Variants in Neurodevelopmental Diseases: Genotype-Phenotype Association. Front Mol Neurosci 2022; 14:775479. [PMID: 35095415 PMCID: PMC8790505 DOI: 10.3389/fnmol.2021.775479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/25/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To prove microtubule associated serine/threonine kinase 3 (MAST3) gene is associated with neurodevelopmental diseases (NDD) and the genotype-phenotype correlation.Methods: Trio exome sequencing (trio ES) was performed on four NDD trios. Bioinformatic analysis was conducted based on large-scale genome sequencing data and human brain transcriptomic data. Further in vivo zebrafish studies were performed.Results: In our study, we identified four de novo MAST3 variants (NM_015016.1: c.302C > T:p.Ser101Phe; c.311C > T:p.Ser104Leu; c.1543G > A:p.Gly515Ser; and c.1547T > C:p.Leu516Pro) in four patients with developmental and epileptic encephalopathy (DEE) separately. Clinical heterogeneities were observed in patients carrying variants in domain of unknown function (DUF) and serine-threonine kinase (STK) domain separately. Using the published large-scale exome sequencing data, higher CADD scores of missense variants in DUF domain were found in NDD cohort compared with gnomAD database. In addition, we obtained an excess of missense variants in DUF domain when compared autistic spectrum disorder (ASD) cohort with gnomAD database, similarly an excess of missense variants in STK domain when compared DEE cohort with gnomAD database. Based on Brainspan datasets, we showed that MAST3 expression was significantly upregulated in ASD and DEE-related brain regions and was functionally linked with DEE genes. In zebrafish model, abnormal morphology of central nervous system was observed in mast3a/b crispants.Conclusion: Our results support the possibility that MAST3 is a novel gene associated with NDD which could expand the genetic spectrum for NDD. The genotype-phenotype correlation may contribute to future genetic counseling.
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Affiliation(s)
- Li Shu
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- National Health Commission Key Laboratory for Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- Department of School of Life Sciences, Central South University, Changsha, China
| | - Neng Xiao
- Department of Pediatric Neurology, Chenzhou First People’s Hospital, Chenzhou, China
| | - Jiong Qin
- Department of Pediatrics, Peking University People’s Hospital, Beijing, China
| | - Qi Tian
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | - Yanghui Zhang
- Medical Genetics Center, Jiangmen Maternity and Child Health Care Hospital, Jiangmen, China
| | - Haoxian Li
- Medical Genetics Center, Jiangmen Maternity and Child Health Care Hospital, Jiangmen, China
| | | | - Qinrui Li
- Department of Pediatrics, Peking University People’s Hospital, Beijing, China
| | - Weiyue Gu
- Chigene (Beijing) Translational Medical Research Center Co., Ltd., Beijing, China
| | - Pengchao Wang
- Chigene (Beijing) Translational Medical Research Center Co., Ltd., Beijing, China
| | - Hua Wang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- National Health Commission Key Laboratory for Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- Hua Wang,
| | - Xiao Mao
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- National Health Commission Key Laboratory for Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- *Correspondence: Xiao Mao,
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Ying Y, Hu X, Han P, Mendez-Bermudez A, Bauwens S, Eid R, Tan L, Pousse M, Giraud-Panis MJ, Lu Y, Gilson E, Ye J. OUP accepted manuscript. Nucleic Acids Res 2022; 50:2081-2095. [PMID: 35150283 PMCID: PMC8887477 DOI: 10.1093/nar/gkac065] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 12/22/2021] [Accepted: 02/05/2022] [Indexed: 11/18/2022] Open
Abstract
The shelterin protein complex is required for telomere protection in various eukaryotic organisms. In mammals, the shelterin subunit TRF2 is specialized in preventing ATM activation at telomeres and chromosome end fusion in somatic cells. Here, we demonstrate that the zebrafish ortholog of TRF2 (encoded by the terfa gene) is protecting against unwanted ATM activation genome-wide. The terfa-compromised fish develop a prominent and specific embryonic neurodevelopmental failure. The heterozygous fish survive to adulthood but exhibit a premature aging phenotype. The recovery from embryonic neurodevelopmental failure requires both ATM inhibition and transcriptional complementation of neural genes. Furthermore, restoring the expression of TRF2 in glial cells rescues the embryonic neurodevelopment phenotype. These results indicate that the shelterin subunit TRF2 evolved in zebrafish as a general factor of genome maintenance and transcriptional regulation that is required for proper neurodevelopment and normal aging. These findings uncover how TRF2 links development to aging by separate functions in gene expression regulation and genome stability control.
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Affiliation(s)
| | | | | | - Aaron Mendez-Bermudez
- Department of Geriatrics, Medical center on Aging of Shanghai Ruijin Hospital, Shanghai Jiaotong University school of Medicine; International Laboratory in Hematology and Cancer, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Côte d’Azur University, PR China
- Côte d’Azur University, CNRS, INSERM, IRCAN, Faculty of Medicine Nice, France
| | - Serge Bauwens
- Côte d’Azur University, CNRS, INSERM, IRCAN, Faculty of Medicine Nice, France
| | - Rita Eid
- Côte d’Azur University, CNRS, INSERM, IRCAN, Faculty of Medicine Nice, France
| | - Li Tan
- Shanghai Center for Plant Stress Center, CAS Center for Excellence in Molecular Plant Sciences, PR China
| | - Mélanie Pousse
- Côte d’Azur University, CNRS, INSERM, IRCAN, Faculty of Medicine Nice, France
| | | | - Yiming Lu
- Department of Geriatrics, Medical center on Aging of Shanghai Ruijin Hospital, Shanghai Jiaotong University school of Medicine; International Laboratory in Hematology and Cancer, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Côte d’Azur University, PR China
- The State Key Laboratory of Medical Genomics, Pôle Sino-Français de Recherche en Sciences Du Vivant et Génomique, China
| | - Eric Gilson
- Correspondence may also be addressed to Eric Gilson. Tel: +33 04 93 95 77 07; Fax: +33 04 93 95 77 08;
| | - Jing Ye
- To whom correspondence should be addressed. Tel: +86 6437 0045 61 1110; Fax: +86 6437 0045 61 1105;
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IQ-Switch is a QF-based innocuous, silencing-free, and inducible gene switch system in zebrafish. Commun Biol 2021; 4:1405. [PMID: 34916605 PMCID: PMC8677817 DOI: 10.1038/s42003-021-02923-3] [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: 05/28/2021] [Accepted: 11/24/2021] [Indexed: 11/08/2022] Open
Abstract
Though various transgene expression switches have been adopted in a wide variety of organisms for basic and biomedical research, intrinsic obstacles of those existing systems, including toxicity and silencing, have been limiting their use in vertebrate transgenesis. Here we demonstrate a novel QF-based binary transgene switch (IQ-Switch) that is relatively free of driver toxicity and transgene silencing, and exhibits potent and highly tunable transgene activation by the chemical inducer tebufenozide, a non-toxic lipophilic molecule to developing zebrafish with negligible background. The interchangeable IQ-Switch makes it possible to elicit ubiquitous and tissue specific transgene expression in a spatiotemporal manner. We generated a RASopathy disease model using IQ-Switch and demonstrated that the RASopathy symptoms were ameliorated by the specific BRAF(V600E) inhibitor vemurafenib, validating the therapeutic use of the gene switch. The orthogonal IQ-Switch provides a state-of-the-art platform for flexible regulation of transgene expression in zebrafish, potentially applicable in cell-based systems and other model organisms.
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Serrano RJ, Lee C, Douek AM, Kaslin J, Bryson-Richardson RJ, Sztal TE. Novel pre-clinical model for CDKL5 Deficiency Disorder. Dis Model Mech 2021; 15:273746. [PMID: 34913468 PMCID: PMC8922025 DOI: 10.1242/dmm.049094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 12/06/2021] [Indexed: 11/20/2022] Open
Abstract
Cyclin-dependent kinase-like-5 (CDKL5) deficiency disorder (CDD) is a severe X-linked neurodegenerative disease characterised by early-onset epileptic seizures, low muscle tone, progressive intellectual disability and severe motor function. CDD affects ∼1 in 60,000 live births, with many patients experiencing a reduced quality of life due to the severity of their neurological symptoms and functional impairment. There are no effective therapies for CDD, with current treatments focusing on improving symptoms rather than addressing the underlying causes of the disorder. Zebrafish offer many unique advantages for high-throughput preclinical evaluation of potential therapies for neurological diseases, including CDD. In particular, the large number of offspring produced, together with the possibilities for in vivo imaging and genetic manipulation, allows for the detailed assessment of disease pathogenesis and therapeutic discovery. We have characterised a loss-of-function zebrafish model for CDD, containing a nonsense mutation in cdkl5. cdkl5 mutant zebrafish display defects in neuronal patterning, seizures, microcephaly, and reduced muscle function caused by impaired muscle innervation. This study provides a powerful vertebrate model for investigating CDD disease pathophysiology and allowing high-throughput screening for effective therapies. This article has an associated First Person interview with the first author of the paper. Summary: Characterisation of a novel loss-of-function zebrafish model for CDKL5 deficiency disorder, containing a nonsense mutation, demonstrates its utility for investigating disease aetiology and allowing high-throughput screening for potentially effective therapies.
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Affiliation(s)
- Rita J Serrano
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - Clara Lee
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - Alon M Douek
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Australia
| | - Jan Kaslin
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Australia
| | | | - Tamar E Sztal
- School of Biological Sciences, Monash University, Melbourne, Australia
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Bauer B, Mally A, Liedtke D. Zebrafish Embryos and Larvae as Alternative Animal Models for Toxicity Testing. Int J Mol Sci 2021; 22:13417. [PMID: 34948215 PMCID: PMC8707050 DOI: 10.3390/ijms222413417] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 02/07/2023] Open
Abstract
Prerequisite to any biological laboratory assay employing living animals is consideration about its necessity, feasibility, ethics and the potential harm caused during an experiment. The imperative of these thoughts has led to the formulation of the 3R-principle, which today is a pivotal scientific standard of animal experimentation worldwide. The rising amount of laboratory investigations utilizing living animals throughout the last decades, either for regulatory concerns or for basic science, demands the development of alternative methods in accordance with 3R to help reduce experiments in mammals. This demand has resulted in investigation of additional vertebrate species displaying favourable biological properties. One prominent species among these is the zebrafish (Danio rerio), as these small laboratory ray-finned fish are well established in science today and feature outstanding biological characteristics. In this review, we highlight the advantages and general prerequisites of zebrafish embryos and larvae before free-feeding stages for toxicological testing, with a particular focus on cardio-, neuro, hepato- and nephrotoxicity. Furthermore, we discuss toxicokinetics, current advances in utilizing zebrafish for organ toxicity testing and highlight how advanced laboratory methods (such as automation, advanced imaging and genetic techniques) can refine future toxicological studies in this species.
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Affiliation(s)
- Benedikt Bauer
- Institute of Pharmacology and Toxicology, Julius-Maximilians-University, 97078 Würzburg, Germany; (B.B.); (A.M.)
| | - Angela Mally
- Institute of Pharmacology and Toxicology, Julius-Maximilians-University, 97078 Würzburg, Germany; (B.B.); (A.M.)
| | - Daniel Liedtke
- Institute of Human Genetics, Julius-Maximilians-University, 97074 Würzburg, Germany
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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: 27] [Impact Index Per Article: 9.0] [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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Vandestadt C, Vanwalleghem GC, Khabooshan MA, Douek AM, Castillo HA, Li M, Schulze K, Don E, Stamatis SA, Ratnadiwakara M, Änkö ML, Scott EK, Kaslin J. RNA-induced inflammation and migration of precursor neurons initiates neuronal circuit regeneration in zebrafish. Dev Cell 2021; 56:2364-2380.e8. [PMID: 34428400 DOI: 10.1016/j.devcel.2021.07.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 06/18/2021] [Accepted: 07/27/2021] [Indexed: 11/29/2022]
Abstract
Tissue regeneration and functional restoration after injury are considered as stem- and progenitor-cell-driven processes. In the central nervous system, stem cell-driven repair is slow and problematic because function needs to be restored rapidly for vital tasks. In highly regenerative vertebrates, such as zebrafish, functional recovery is rapid, suggesting a capability for fast cell production and functional integration. Surprisingly, we found that migration of dormant "precursor neurons" to the injury site pioneers functional circuit regeneration after spinal cord injury and controls the subsequent stem-cell-driven repair response. Thus, the precursor neurons make do before the stem cells make new. Furthermore, RNA released from the dying or damaged cells at the site of injury acts as a signal to attract precursor neurons for repair. Taken together, our data demonstrate an unanticipated role of neuronal migration and RNA as drivers of neural repair.
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Affiliation(s)
- Celia Vandestadt
- Australian Regenerative Medicine Institute, Monash University, Clayton VIC, 3800, Australia
| | - Gilles C Vanwalleghem
- The Queensland Brain Institute, the University of Queensland, St. Lucia, QLD, Australia
| | - Mitra Amiri Khabooshan
- Australian Regenerative Medicine Institute, Monash University, Clayton VIC, 3800, Australia
| | - Alon M Douek
- Australian Regenerative Medicine Institute, Monash University, Clayton VIC, 3800, Australia
| | - Hozana Andrade Castillo
- Australian Regenerative Medicine Institute, Monash University, Clayton VIC, 3800, Australia; Brazilian Biosciences National Laboratory, Brazilian Centre for Research in Energy and Materials, Campinas CEP 13083-100, Brazil
| | - Mei Li
- Australian Regenerative Medicine Institute, Monash University, Clayton VIC, 3800, Australia
| | - Keith Schulze
- Monash Micro Imaging, Monash University, Monash University, Clayton, VIC 3800, Australia
| | - Emily Don
- Centre for Motor Neuron Disease Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Macquarie Park, NSW 2109, Australia
| | | | - Madara Ratnadiwakara
- Centre for Reproductive Health and Center for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia
| | - Minna-Liisa Änkö
- Centre for Reproductive Health and Center for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3800, Australia
| | - Ethan K Scott
- The Queensland Brain Institute, the University of Queensland, St. Lucia, QLD, Australia
| | - Jan Kaslin
- Australian Regenerative Medicine Institute, Monash University, Clayton VIC, 3800, Australia.
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45
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Zilova L, Weinhardt V, Tavhelidse T, Schlagheck C, Thumberger T, Wittbrodt J. Fish primary embryonic pluripotent cells assemble into retinal tissue mirroring in vivo early eye development. eLife 2021; 10:e66998. [PMID: 34252023 PMCID: PMC8275126 DOI: 10.7554/elife.66998] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/24/2021] [Indexed: 12/14/2022] Open
Abstract
Organoids derived from pluripotent stem cells promise the solution to current challenges in basic and biomedical research. Mammalian organoids are however limited by long developmental time, variable success, and lack of direct comparison to an in vivo reference. To overcome these limitations and address species-specific cellular organization, we derived organoids from rapidly developing teleosts. We demonstrate how primary embryonic pluripotent cells from medaka and zebrafish efficiently assemble into anterior neural structures, particularly retina. Within 4 days, blastula-stage cell aggregates reproducibly execute key steps of eye development: retinal specification, morphogenesis, and differentiation. The number of aggregated cells and genetic factors crucially impacted upon the concomitant morphological changes that were intriguingly reflecting the in vivo situation. High efficiency and rapid development of fish-derived organoids in combination with advanced genome editing techniques immediately allow addressing aspects of development and disease, and systematic probing of impact of the physical environment on morphogenesis and differentiation.
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Affiliation(s)
- Lucie Zilova
- Centre for Organismal Studies Heidelberg, Heidelberg UniversityHeidelbergGermany
| | - Venera Weinhardt
- Centre for Organismal Studies Heidelberg, Heidelberg UniversityHeidelbergGermany
| | - Tinatini Tavhelidse
- Centre for Organismal Studies Heidelberg, Heidelberg UniversityHeidelbergGermany
| | - Christina Schlagheck
- Centre for Organismal Studies Heidelberg, Heidelberg UniversityHeidelbergGermany
- Heidelberg International Biosciences Graduate School HBIGS and HeiKa Graduate School on “Functional Materials”HeidelbergGermany
| | - Thomas Thumberger
- Centre for Organismal Studies Heidelberg, Heidelberg UniversityHeidelbergGermany
| | - Joachim Wittbrodt
- Centre for Organismal Studies Heidelberg, Heidelberg UniversityHeidelbergGermany
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Jin M, Dang J, Paudel YN, Wang X, Wang B, Wang L, Li P, Sun C, Liu K. The possible hormetic effects of fluorene-9-bisphenol on regulating hypothalamic-pituitary-thyroid axis in zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 776:145963. [PMID: 33639463 DOI: 10.1016/j.scitotenv.2021.145963] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/30/2021] [Accepted: 02/13/2021] [Indexed: 06/12/2023]
Abstract
Fluorene-9-bisphenol (BHPF) is a bisphenol A substitute, which has been introduced for the production of so-called 'bisphenol A (BPA)-free' plastics. However, it has been reported that BHPF can enter living organisms through using commercial plastic bottles and cause adverse effects. To date, the majority of the toxicologic study of BHPF focused on investigating its doses above the toxicological threshold. Here, we studied the effects of BHPF on development, locomotion, neuron differentiation of the central nervous system (CNS), and the expression of genes in the hypothalamic-pituitary-thyroid (HPT) axis in zebrafish exposed to different doses of BHPF ranging from 1/5 of LD1 to LD50 (300, 500, 750, 1500, 3000, and 4500 nM). As a result, the possible hormetic effects of BHPF on regulating the HPT axis were revealed, in which low-dose BHPF positively affected the HPT axis while this regulation was inhibited as the dose increased. Underlying mechanism investigation suggested that BHPF disrupted myelination through affecting HPT axis including related genes expression and TH levels, thus causing neurotoxic characteristics. Collectively, this study provides the full understanding of the environmental impact of BHPF and its toxicity on living organisms, highlighting a substantial and generalized ongoing dose-response relationship with great implications for the usage and risk assessment of BHPF.
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Affiliation(s)
- Meng Jin
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Jiao Dang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Yam Nath Paudel
- Neuropharmacology Research Strength, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Xixin Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Baokun Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Peihai Li
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Chen Sun
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China
| | - Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Ji'nan 250103, Shandong Province, PR China.
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FAM19A5l Affects Mustard Oil-Induced Peripheral Nociception in Zebrafish. Mol Neurobiol 2021; 58:4770-4785. [PMID: 34176096 DOI: 10.1007/s12035-021-02449-z] [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: 03/22/2021] [Accepted: 06/10/2021] [Indexed: 10/21/2022]
Abstract
Family with sequence similarity 19 (chemokine (C-C motif)-like) member A5 (FAM19A5) is a chemokine-like secretory protein recently identified as involved in the regulation of osteoclast formation, post-injury neointima formation, and depression. Although roles for FAM19A5 have been described in nervous system development and psychiatric disorders, its role in the nervous system remains poorly understood. Here, we analyzed the evolutionary history of FAM19A genes in vertebrates and identified FAM19A5l, a paralogous zebrafish gene originating from a common ancestral FAM19A5 gene. Further, zebrafish FAM19A5l is expressed in trigeminal and dorsal root ganglion neurons as well as distinct neuronal subsets of the central nervous system. Interestingly, FAM19A5l+ trigeminal neurons are nociceptive neurons that localized with TRPA1b and TRPV1 and respond to mustard oil treatment. Behavioral analysis further revealed that the nociceptive response to mustard oil decreases in FAM19A5l-knockout zebrafish larvae. In addition, TRPA1b and NGFa mRNA levels are down- and upregulated in FAM19A5l-knockout and -overexpressing transgenic zebrafish, respectively. Together, our data suggest that FAM19A5l plays a role in nociceptive responses to mustard oil by regulating TRPA1b and NGFa expression in zebrafish.
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48
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Rgs4 is a regulator of mTOR activity required for motoneuron axon outgrowth and neuronal development in zebrafish. Sci Rep 2021; 11:13338. [PMID: 34172795 PMCID: PMC8233358 DOI: 10.1038/s41598-021-92758-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 06/15/2021] [Indexed: 12/21/2022] Open
Abstract
The Regulator of G protein signaling 4 (Rgs4) is a member of the RGS proteins superfamily that modulates the activity of G-protein coupled receptors. It is mainly expressed in the nervous system and is linked to several neuronal signaling pathways; however, its role in neural development in vivo remains inconclusive. Here, we generated and characterized a rgs4 loss of function model (MZrgs4) in zebrafish. MZrgs4 embryos showed motility defects and presented reduced head and eye sizes, reflecting defective motoneurons axon outgrowth and a significant decrease in the number of neurons in the central and peripheral nervous system. Forcing the expression of Rgs4 specifically within motoneurons rescued their early defective outgrowth in MZrgs4 embryos, indicating an autonomous role for Rgs4 in motoneurons. We also analyzed the role of Akt, Erk and mechanistic target of rapamycin (mTOR) signaling cascades and showed a requirement for these pathways in motoneurons axon outgrowth and neuronal development. Drawing on pharmacological and rescue experiments in MZrgs4, we provide evidence that Rgs4 facilitates signaling mediated by Akt, Erk and mTOR in order to drive axon outgrowth in motoneurons and regulate neuronal numbers.
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49
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Moortgat S, Manfroid I, Pendeville H, Freeman S, Bourdouxhe J, Benoit V, Merhi A, Philippe C, Faivre L, Maystadt I. Broadening the phenotypic spectrum and physiological insights related to EIF2S3 variants. Hum Mutat 2021; 42:827-834. [PMID: 33942450 DOI: 10.1002/humu.24215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 04/09/2021] [Accepted: 04/27/2021] [Indexed: 01/20/2023]
Abstract
Mental deficiency, epilepsy, hypogonadism, microcephaly, and obesity syndrome is a severe X-linked syndrome caused by pathogenic variants in EIF2S3. The gene encodes the γ subunit of the eukaryotic translation initiation factor-2, eIF2, essential for protein translation. A recurrent frameshift variant is described in severely affected patients while missense variants usually cause a moderate phenotype. We identified a novel missense variant (c.433A>G, p.(Met145Val)) in EIF2S3 in a mildly affected patient. Studies on zebrafish confirm the pathogenicity of this novel variant and three previously published missense variants. CRISPR/Cas9 knockout of eif2s3 in zebrafish embryos recapitulate the human microcephaly and show increased neuronal cell death. Abnormal high glucose levels were identified in mutant embryos, caused by beta cell and pancreatic progenitor deficiency, not related to apoptosis. Additional studies in patient-derived fibroblasts did not reveal apoptosis. Our results provide new insights into disease physiopathology, suggesting tissue-dependent mechanisms.
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Affiliation(s)
- Stephanie Moortgat
- Center de Génétique Humaine, Institut de Pathologie et de Génétique, Gosselies, Belgium
| | - Isabelle Manfroid
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA-Research, Tour B34, Université de Liège, Liège (Sart-Tilman), Belgium
| | - Hélène Pendeville
- GIGA-Research, Zebrafish Platform, Tour B34, Université de Liège, Liège (Sart-Tilman), Belgium
| | - Stephen Freeman
- GIGA-Research, Imaging and Flow Cytometry Platform, Tour B34, Université de Liège, Liège (Sart-Tilman), Belgium
| | - Jordane Bourdouxhe
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA-Research, Tour B34, Université de Liège, Liège (Sart-Tilman), Belgium
| | - Valérie Benoit
- Center de Génétique Humaine, Institut de Pathologie et de Génétique, Gosselies, Belgium
| | - Ahmad Merhi
- Laboratory of Translational Oncology, Institut de Pathologie et de Génétique, Gosselies, Belgium.,IPG BioBank, Institut de Pathologie et de Génétique, 6041 Charleroi, Gosselies, Belgium
| | - Christophe Philippe
- Inserm UMR 1231 GAD, Genetics of Developmental disorders, Université de Bourgogne-Franche Comté, Dijon, France.,Unité Fonctionnelle « Innovation diagnostique dans les maladies rares », laboratoire de génétique moléculaire, plate-forme de biologie hospitalo-universitaire, CHU Dijon, Dijon, France
| | - Laurence Faivre
- Inserm UMR 1231 GAD, Genetics of Developmental disorders, Université de Bourgogne-Franche Comté, Dijon, France.,Center de Génétique et Center de Référence Maladies Rares « Anomalies du Développement et Syndromes Malformatifs de l'Interrégion Est », Hôpital d'Enfants, CHU, Dijon, France.,Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (TRANSLAD), Centre Hospitalier Universitaire Dijon, Dijon, France
| | - Isabelle Maystadt
- Center de Génétique Humaine, Institut de Pathologie et de Génétique, Gosselies, Belgium.,Faculté de Médecine, URPhyM, UNamur, Namur, Belgium
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Zebrafish Models to Study New Pathways in Tauopathies. Int J Mol Sci 2021; 22:ijms22094626. [PMID: 33924882 PMCID: PMC8125481 DOI: 10.3390/ijms22094626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/13/2021] [Accepted: 04/24/2021] [Indexed: 02/07/2023] Open
Abstract
Tauopathies represent a vast family of neurodegenerative diseases, the most well-known of which is Alzheimer’s disease. The symptoms observed in patients include cognitive deficits and locomotor problems and can lead ultimately to dementia. The common point found in all these pathologies is the accumulation in neural and/or glial cells of abnormal forms of Tau protein, leading to its aggregation and neurofibrillary tangles. Zebrafish transgenic models have been generated with different overexpression strategies of human Tau protein. These transgenic lines have made it possible to highlight Tau interacting factors or factors which may limit the neurotoxicity induced by mutations and hyperphosphorylation of the Tau protein in neurons. Several studies have tested neuroprotective pharmacological approaches. On few-days-old larvae, modulation of various signaling or degradation pathways reversed the deleterious effects of Tau mutations, mainly hTauP301L and hTauA152T. Live imaging and live tracking techniques as well as behavioral follow-up enable the analysis of the wide range of Tau-related phenotypes from synaptic loss to cognitive functional consequences.
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