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Janssen R, Budd GE. Expression of netrin and its receptors uncoordinated-5 and frazzled in arthropods and onychophorans suggests conserved and diverged functions in neuronal pathfinding and synaptogenesis. Dev Dyn 2023; 252:172-185. [PMID: 35112412 DOI: 10.1002/dvdy.459] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/30/2022] [Accepted: 01/30/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Development of the nervous system and the correct connection of nerve cells require coordinated axonal pathfinding through an extracellular matrix. Outgrowing axons exhibit directional growth toward or away from external guidance cues such as Netrin. Guidance cues can be detected by growth cones that are located at the end of growing axons through membrane-bound receptors such as Uncoordianted-5 and Frazzled. Binding of Netrin causes reformation of the cytoskeleton and growth of the axon toward (or away from) the source of Netrin production. RESULTS Here, we investigate the embryonic mRNA expression patterns of netrin genes and their potential receptors, uncoordinated-5 and frazzled in arthropod species that cover all main branches of Arthropoda, that is, Pancrustacea, Myriapoda, and Chelicerata. We also studied the expression patterns in a closely related outgroup species, the onychophoran Euperipatoides kanangrensis, and provide data on expression profiles of these genes in larval tissues of the fly Drosophila melanogaster including the brain and the imaginal disks. CONCLUSION Our data reveal conserved and diverged aspects of neuronal guidance in Drosophila with respect to the other investigated species and suggest a conserved function in nervous system patterning of the developing appendages.
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Affiliation(s)
- Ralf Janssen
- Department of Earth Sciences, Palaeobiology, Uppsala University, Uppsala, Sweden
| | - Graham E Budd
- Department of Earth Sciences, Palaeobiology, Uppsala University, Uppsala, Sweden
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Edwards-Faret G, de Vin F, Slezak M, Gollenbeck L, Karaman R, Shinmyo Y, Batiuk MY, Pando CM, Urschitz J, Rincon MY, Moisyadi S, Schnütgen F, Kawasaki H, Schmucker D, Holt MG. A New Technical Approach for Cross-species Examination of Neuronal Wiring and Adult Neuron-glia Functions. Neuroscience 2023; 508:40-51. [PMID: 36464177 DOI: 10.1016/j.neuroscience.2022.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
Advances in single cell sequencing have enabled the identification of a large number of genes, expressed in many different cell types, and across a variety of model organisms. In particular, the nervous system harbors an immense number of interacting cell types, which are poorly characterized. Future loss- and gain-of-function experiments will be essential in determining how novel genes play critical roles in diverse cellular, as well as evolutionarily adapted, contexts. However, functional analysis across species is often hampered by technical limitations, in non-genetic animal systems. Here, we describe a new single plasmid system, misPiggy. The system is based around the hyperactive piggyBac transposon system, which combines stable genomic integration of transgenes (for long-term expression) with large cargo capacity. Taking full advantage of these characteristics, we engineered novel expression modules into misPiggy that allow for cell-type specific loss- and gain-of-gene function. These modules work widely across species from frog to ferret. As a proof of principle, we present a loss-of-function analysis of the neuronal receptor Deleted in Colorectal Cancer (DCC) in retinal ganglion cells (RGCs) of Xenopus tropicalis tadpoles. Single axon tracings of mosaic knock-out cells reveal a specific cell-intrinsic requirement of DCC, specifically in axonal arborization within the frog tectum, rather than retina-to-brain axon guidance. Furthermore, we report additional technical advances that enable temporal control of knock-down or gain-of-function analysis. We applied this to visualize and manipulate labeled neurons, astrocytes and other glial cells in the central nervous system (CNS) of mouse, rat and ferret. We propose that misPiggy will be a valuable tool for rapid, flexible and cost-effective screening of gene function across a variety of animal models.
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Affiliation(s)
- Gabriela Edwards-Faret
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium; Neuronal Wiring Group, Life & Medical Sciences Institute, University of Bonn, Carl-Troll-Straße 31, Bonn D53115, Germany
| | - Filip de Vin
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium
| | - Michal Slezak
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium
| | - Lennart Gollenbeck
- Neuronal Wiring Group, Life & Medical Sciences Institute, University of Bonn, Carl-Troll-Straße 31, Bonn D53115, Germany
| | - Ruçhan Karaman
- VIB Center for Cancer Biology, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Oncology, Herestraat 49, Leuven 3000, Belgium
| | - Yohei Shinmyo
- Department of Medical Neuroscience, Graduate School of Medicine, Kanazawa University, Ishikawa 920-1192, Japan
| | - Mykhailo Y Batiuk
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium
| | - Carmen Menacho Pando
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium
| | - Johann Urschitz
- Institute for Biogenesis Research, University of Hawaii, 1960 East-West Rd. E-124, Honolulu, HI 96822, USA
| | - Melvin Y Rincon
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium
| | - Stefan Moisyadi
- Institute for Biogenesis Research, University of Hawaii, 1960 East-West Rd. E-124, Honolulu, HI 96822, USA
| | - Frank Schnütgen
- Department of Medicine 2, University Hospital Frankfurt, Goethe University, Theodor Stern Kai 7, Frankfurt am Main D60590, Germany; LOEWE Center for Cell and Gene Therapy, University Hospital Frankfurt, Goethe University, Theodor Stern Kai 7, Frankfurt am Main D60590, Germany; FCI, Frankfurt Cancer Institute, University Hospital Frankfurt, Goethe University, Theodor Stern Kai 7, Frankfurt am Main D60590, Germany
| | - Hiroshi Kawasaki
- Department of Medical Neuroscience, Graduate School of Medicine, Kanazawa University, Ishikawa 920-1192, Japan
| | - Dietmar Schmucker
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium; Neuronal Wiring Group, Life & Medical Sciences Institute, University of Bonn, Carl-Troll-Straße 31, Bonn D53115, Germany; Leuven Brain Institute, Herestraat 49, Leuven 3000, Belgium.
| | - Matthew G Holt
- VIB Center for Brain and Disease Research, Herestraat 49, Leuven 3000, Belgium; KU Leuven Department of Neuroscience, Herestraat 49, Leuven 3000, Belgium; Leuven Brain Institute, Herestraat 49, Leuven 3000, Belgium; University of Porto, Instituto de Investigaçāo e Inovaçāo em Saúde (i3S), Rua Alfredo Allen 208, 4200-135 Porto, Portugal.
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FEZ1 Forms Complexes with CRMP1 and DCC to Regulate Axon and Dendrite Development. eNeuro 2021; 8:ENEURO.0193-20.2021. [PMID: 33771901 PMCID: PMC8174033 DOI: 10.1523/eneuro.0193-20.2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 12/12/2022] Open
Abstract
Elaboration of neuronal processes is an early step in neuronal development. Guidance cues must work closely with intracellular trafficking pathways to direct expanding axons and dendrites to their target neurons during the formation of neuronal networks. However, how such coordination is achieved remains incompletely understood. Here, we characterize an interaction between fasciculation and elongation protein zeta 1 (FEZ1), an adapter involved in synaptic protein transport, and collapsin response mediator protein (CRMP)1, a protein that functions in growth cone guidance, at neuronal growth cones. We show that similar to CRMP1 loss-of-function mutants, FEZ1 deficiency in rat hippocampal neurons causes growth cone collapse and impairs axonal development. Strikingly, FEZ1-deficient neurons also exhibited a reduction in dendritic complexity stronger than that observed in CRMP1-deficient neurons, suggesting that the former could partake in additional developmental signaling pathways. Supporting this, FEZ1 colocalizes with VAMP2 in developing hippocampal neurons and forms a separate complex with deleted in colorectal cancer (DCC) and Syntaxin-1 (Stx1), components of the Netrin-1 signaling pathway that are also involved in regulating axon and dendrite development. Significantly, developing axons and dendrites of FEZ1-deficient neurons fail to respond to Netrin-1 or Netrin-1 and Sema3A treatment, respectively. Taken together, these findings highlight the importance of FEZ1 as a common effector to integrate guidance signaling pathways with intracellular trafficking to mediate axo-dendrite development during neuronal network formation.
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Di Paolo A, Farias J, Garat J, Macklin A, Ignatchenko V, Kislinger T, Sotelo Silveira J. Rat Sciatic Nerve Axoplasm Proteome Is Enriched with Ribosomal Proteins during Regeneration Processes. J Proteome Res 2021; 20:2506-2520. [PMID: 33793244 DOI: 10.1021/acs.jproteome.0c00980] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Axons are complex subcellular compartments that are extremely long in relation to cell bodies, especially in peripheral nerves. Many processes are required and regulated during axon injury, including anterograde and retrograde transport, glia-to-axon macromolecular transfer, and local axonal protein synthesis. Many in vitro omics approaches have been used to gain insight into these processes, but few have been applied in vivo. Here we adapted the osmotic ex vivo axoplasm isolation method and analyzed the adult rat sciatic-nerve-extruded axoplasm by label-free quantitative proteomics before and after injury. 2087 proteins groups were detected in the axoplasm, revealing translation machinery and microtubule-associated proteins as the most overrepresented biological processes. Ribosomal proteins (73) were detected in the uninjured axoplasm and increased their levels after injury but not within whole sciatic nerves. Meta-analysis showed that detected ribosomal proteins were present in in vitro axonal proteomes. Because local protein synthesis is important for protein localization, we were interested in detecting the most abundant newly synthesized axonal proteins in vivo. With an MS/MS-BONCAT approach, we detected 42 newly synthesized protein groups. Overall, our work indicates that proteomics profiling is useful for local axonal interrogation and suggests that ribosomal proteins may play an important role, especially during injury.
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Affiliation(s)
- Andres Di Paolo
- Departamento de Proteínas y Ácidos Nucleicos, IIBCE, 11600 Montevideo, Uruguay.,Departamento de Genómica, IIBCE, 11600 Montevideo, Uruguay
| | | | - Joaquin Garat
- Departamento de Genómica, IIBCE, 11600 Montevideo, Uruguay
| | - Andrew Macklin
- Princess Margaret Cancer Centre, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Vladimir Ignatchenko
- Princess Margaret Cancer Centre, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Thomas Kislinger
- Princess Margaret Cancer Centre, 101 College Street, Toronto, Ontario M5G 1L7, Canada.,Department of Medical Biophysics, University of Toronto, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - José Sotelo Silveira
- Departamento de Genómica, IIBCE, 11600 Montevideo, Uruguay.,Departamento de Biología Celular y Molecular, Facultad de Ciencias, 11400 Montevideo, Uruguay
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Mu X, Li W, Ze X, Li L, Wang G, Hong F, Ze Y. Molecular mechanism of nanoparticulate TiO 2 induction of axonal development inhibition in rat primary cultured hippocampal neurons. ENVIRONMENTAL TOXICOLOGY 2020; 35:895-905. [PMID: 32329576 DOI: 10.1002/tox.22926] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/16/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Numerous studies have demonstrated the in vitro and in vivo neurotoxicity of nanoparticulate titanium dioxide (nano-TiO2 ), a mass-produced material for a large number of commercial and industrial applications. The mechanism of nano-TiO2 -induced inhibition of axonal development, however, is still unclear. In our study, primary cultured hippocampal neurons of 24-hour-old fetal Sprague-Dawley rats were exposed to 5, 15, or 30 μg/mL nano-TiO2 for 6, 12, and 24 hours, and the toxic effects of nano-TiO2 exposure on the axons development were detected and its molecular mechanism investigated. Nano-TiO2 accumulated in hippocampal neurons and inhibited the development of axons as nano-TiO2 concentrations increased. Increasing time in culture resulted in decreasing axon length by 32.5%, 36.6%, and 53.8% at 6 hours, by 49.4%, 53.8%, and 69.5% at 12 hours, and by 44.5%, 58.2%, and 63.6% at 24 hours, for 5, 15, and 30 μg/mL nano-TiO2 , respectively. Furthermore, nano-TiO2 downregulated expression of Netrin-1, growth-associated protein-43, and Neuropilin-1, and promoted an increase of semaphorin type 3A and Nogo-A. These studies suggest that nano-TiO2 inhibited axonal development in rat primary cultured hippocampal neurons and this phenomenon is related to changes in the expression of axon growth-related factors.
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Affiliation(s)
- Xu Mu
- Department of Biochemistry and Molecular Biology, School of Basic Medical and Biological Sciences, Soochow University, Suzhou, China
| | - Wuyan Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical and Biological Sciences, Soochow University, Suzhou, China
| | - Xiao Ze
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Lingjuan Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical and Biological Sciences, Soochow University, Suzhou, China
| | - Guoqing Wang
- Department of Physiology and Neurobiology, School of Basic Medical and Biological Sciences, Soochow University, Suzhou, China
| | - Fashui Hong
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huaian, China
- Department of Biotechnology, School of Life Sciences, Huaiyin Normal University, Huaian, China
| | - Yuguan Ze
- Department of Biochemistry and Molecular Biology, School of Basic Medical and Biological Sciences, Soochow University, Suzhou, China
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Jain S, Watts CA, Chung WCJ, Welshhans K. Neurodevelopmental wiring deficits in the Ts65Dn mouse model of Down syndrome. Neurosci Lett 2020; 714:134569. [PMID: 31644920 DOI: 10.1016/j.neulet.2019.134569] [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: 02/01/2019] [Revised: 09/26/2019] [Accepted: 10/16/2019] [Indexed: 10/25/2022]
Abstract
Down syndrome is the most common genetic cause of intellectual disability and occurs due to the trisomy of human chromosome 21. Adolescent and adult brains from humans with Down syndrome exhibit various neurological phenotypes including a reduction in the size of the corpus callosum, hippocampal commissure and anterior commissure. However, it is unclear when and how these interhemispheric connectivity defects arise. Using the Ts65Dn mouse model of Down syndrome, we examined interhemispheric connectivity in postnatal day 0 (P0) Ts65Dn mouse brains. We find that there is no change in the volume of the corpus callosum or anterior commissure in P0 Ts65Dn mice. However, the volume of the hippocampal commissure is significantly reduced in P0 Ts65Dn mice, and this may contribute to the impaired learning and memory phenotype of this disorder. Interhemispheric connectivity defects that arise during development may be due to disrupted axon growth. In line with this, we find that developing hippocampal neurons display reduced axon length in vitro, as compared to neurons from their euploid littermates. This study is the first to report the presence of defective interhemispheric connectivity at the time of birth in Ts65Dn mice, providing evidence that early therapeutic intervention may be an effective time window for the treatment of Down syndrome.
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Affiliation(s)
- Shruti Jain
- Department of Biological Sciences, Kent State University, Kent, OH, 44242, USA
| | - Christina A Watts
- School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA
| | - Wilson C J Chung
- Department of Biological Sciences, Kent State University, Kent, OH, 44242, USA; School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA; Brain Health Research Institute, Kent State University, Kent, OH, 44242, USA
| | - Kristy Welshhans
- Department of Biological Sciences, Kent State University, Kent, OH, 44242, USA; School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA; Brain Health Research Institute, Kent State University, Kent, OH, 44242, USA.
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Yuferov V, Zhang Y, Liang Y, Zhao C, Randesi M, Kreek MJ. Oxycodone Self-Administration Induces Alterations in Expression of Integrin, Semaphorin and Ephrin Genes in the Mouse Striatum. Front Psychiatry 2018; 9:257. [PMID: 29946272 PMCID: PMC6005861 DOI: 10.3389/fpsyt.2018.00257] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 05/24/2018] [Indexed: 11/28/2022] Open
Abstract
Oxycodone is one a commonly used medication for pain, and is also a widely abused prescription opioid, like other short-acting MOPr agonists. Neurochemical and structural adaptations in brain following chronic MOPr-agonist administration are thought to underlie pathogenesis and persistence of opiate addiction. Many axon guidance molecules, such as integrins, semaphorins, and ephrins may contribute to oxycodone-induced neuroadaptations through alterations in axon-target connections and synaptogenesis, that may be implicated in the behaviors associated with opiate addiction. However, little is known about this important area. The aim of this study is to investigate alterations in expression of selected integrin, semaphorin, ephrins, netrin, and slit genes in the nucleus accumbens (NAc) and caudate putamen (CPu) of mice following extended 14-day oxycodone self-administration (SA), using RNAseq. Methods: Total RNA from the NAc and CPu were isolated from adult male C57BL/6J mice within 1 h after the last session of oxycodone in a 14-day self-administration paradigm (4h/day, 0.25 mg/kg/infusion, FR1) or from yoked saline controls. Gene expressions were examined using RNA sequencing (RNA-Seq) technology. RNA-Seq libraries were prepared using Illumina's TruSeq® Stranded Total RNA LT kit. The reads were aligned to the mouse reference genome (version mm10) using STAR. DESeq2 was applied to the counts of protein coding genes to estimate the fold change between the treatment groups. False Discovery Rate (FDR) q < 0.1 were used to select genes that have a significant expression change. For selection of a subset of genes related to axon guidance pathway, REACTOME was used. Results: Among 38 known genes of the integrin, semaphorin, and ephrin gene families, RNA-seq data revealed up-regulation of six genes in the NAc: heterodimer receptor, integrins Itgal, Itgb2, and Itgam, and its ligand semaphorin Sema7a, two semaphorin receptors, plexins Plxnd1 and Plxdc1. There was down-regulation of eight genes in this region: two integrin genes Itga3 and Itgb8, semaphorins Sema3c, Sema4g, Sema6a, Sema6d, semaphorin receptor neuropilin Nrp2, and ephrin receptor Epha3. In the CPu, there were five differentially expressed axon guidance genes: up-regulation of three integrin genes, Itgal, Itgb2, Itga1, and down-regulation of Itga9 and ephrin Efna3 were thus observed. No significant alterations in expression of Netrin-1 or Slit were observed. Conclusion: We provide evidence for alterations in the expression of selective axon guidance genes in adult mouse brain following chronic self-administration of oxycodone. Further examination of oxycodone-induced changes in the expression of these specific axon guidance molecules and integrin genes in relation to behavior may provide new insights into development of addiction to oxycodone.
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Affiliation(s)
- Vadim Yuferov
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, New York, NY, United States
| | - Yong Zhang
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, New York, NY, United States
| | - Yupu Liang
- Research Bioinformatics, Clinical and Translational Science Award, The Rockefeller University, New York, NY, United States
| | - Connie Zhao
- Genomic Resource Center, The Rockefeller University, New York, NY, United States
| | - Matthew Randesi
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, New York, NY, United States
| | - Mary J Kreek
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, New York, NY, United States
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