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Ayana R, Zandecki C, Van houcke J, Mariën V, Seuntjens E, Arckens L. Single-cell sequencing unveils the impact of aging on the progenitor cell diversity in the telencephalon of the female killifish N. furzeri. Aging Cell 2024; 23:e14251. [PMID: 38949249 PMCID: PMC11464125 DOI: 10.1111/acel.14251] [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: 02/28/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 07/02/2024] Open
Abstract
The African turquoise killifish (Nothobranchius furzeri) combines a short lifespan with spontaneous age-associated loss of neuro-regenerative capacity, an intriguing trait atypical for a teleost. The impact of aging on the cellular composition of the adult stem cell niches, leading to this dramatic decline in the postnatal neuro- and gliogenesis, remains elusive. Single-cell RNA sequencing of the telencephalon of young adult female killifish of the short-lived GRZ-AD strain unveiled progenitors of glial and non-glial nature, different excitatory and inhibitory neuron subtypes, as well as non-neural cell types. Sub-clustering of the progenitors identified four radial glia (RG) cell types, two non-glial progenitor (NGP) and four intermediate (intercell) cell states. Two astroglia-like, one ependymal, and one neuroepithelial-like (NE) RG subtype were found at different locations in the forebrain in line with their role, while proliferative, active NGPs were spread throughout. Lineage inference pointed to NE-RG and NGPs as start and intercessor populations for glio- and neurogenesis. Upon aging, single-cell RNA sequencing revealed major perturbations in the proportions of the astroglia and intercell states, and in the molecular signatures of specific subtypes, including altered MAPK, mTOR, Notch, and Wnt pathways. This cell catalog of the young regeneration-competent killifish telencephalon, combined with the evidence for aging-related transcriptomic changes, presents a useful resource to understand the molecular basis of age-dependent neuroplasticity. This data is also available through an online database (killifishbrain_scseq).
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Affiliation(s)
- Rajagopal Ayana
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology SectionLaboratory of Neuroplasticity and NeuroproteomicsLeuvenBelgium
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology sectionLaboratory of Developmental NeurobiologyLeuvenBelgium
| | - Caroline Zandecki
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology SectionLaboratory of Neuroplasticity and NeuroproteomicsLeuvenBelgium
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology sectionLaboratory of Developmental NeurobiologyLeuvenBelgium
| | - Jolien Van houcke
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology SectionLaboratory of Neuroplasticity and NeuroproteomicsLeuvenBelgium
| | - Valerie Mariën
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology SectionLaboratory of Neuroplasticity and NeuroproteomicsLeuvenBelgium
| | - Eve Seuntjens
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology sectionLaboratory of Developmental NeurobiologyLeuvenBelgium
- Leuven Institute for Single‐Cell OmicsLeuvenBelgium
- KU Leuven Brain InstituteLeuvenBelgium
| | - Lutgarde Arckens
- KU Leuven, Leuven Brain Institute, Department of Biology, Animal Physiology and Neurobiology SectionLaboratory of Neuroplasticity and NeuroproteomicsLeuvenBelgium
- Leuven Institute for Single‐Cell OmicsLeuvenBelgium
- KU Leuven Brain InstituteLeuvenBelgium
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Inoue S, Masaki Y, Nakagawa S, Yokoi S. An evolutionarily distinct Hmgn2 variant influences shape recognition in Medaka Fish. Commun Biol 2024; 7:973. [PMID: 39179658 PMCID: PMC11344144 DOI: 10.1038/s42003-024-06667-8] [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: 02/14/2024] [Accepted: 08/01/2024] [Indexed: 08/26/2024] Open
Abstract
Protein sequence diversification significantly impacts physiological traits. In this study, using medaka fish (Oryzias latipes), we identify a novel protein variant affecting shape preference behavior. Re-analysis of sequencing data reveals that LOC101156433 encodes a unique Hmgn2 variant with unusual subnuclear localization, clustered separately from the Hmgn2 clades of other species. Medaka mutants with this variant showed reduce telencephalic regions and altered shape preference, suggesting a link between protein sequence variation and behavioral changes. Additionally, this Hmgn2 variant is common in Acanthopterygii fishes, which are adapted to a variety of environments, indicating its potential evolutionary significance. Our findings highlight the relationship between amino acid sequence variation and the development of new molecular and behavioral adaptations, providing insights into the visual shape perception system in fish.
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Affiliation(s)
- Shuntaro Inoue
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Yume Masaki
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Shinichi Nakagawa
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Saori Yokoi
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
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Tatarsky RL, Akbari N, Wang K, Xu C, Bass AH. Label-free multiphoton imaging reveals volumetric shifts across development in sensory-related brain regions of a miniature transparent vertebrate. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.18.604134. [PMID: 39091824 PMCID: PMC11291088 DOI: 10.1101/2024.07.18.604134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Animals integrate information from different sensory modalities as they mature and perform increasingly complex behaviors. This may parallel differential investment in specific brain regions depending on the demands of changing sensory inputs. To investigate developmental changes in the volume of canonical sensory integration brain regions, we used third harmonic generation imaging for morphometric analysis of forebrain and midbrain regions from 5 to 90 days post fertilization (dpf) in Danionella dracula , a transparent, miniature teleost fish whose brain is optically accessible throughout its lifespan. Relative to whole brain volume, increased volume or investment in telencephalon, a higher order sensory integration center, and torus longitudinalis (TL), a midbrain visuomotor integration center, is relatively consistent from 5 to 30 dpf, until it increases at 60 dpf, followed by another increase at 90 dpf, as animals reach adulthood. In contrast, investment in midbrain optic tectum (TeO), a retinal-recipient target, progressively decreases from 30-90 dpf, whereas investment is relatively consistent across all stages for the midbrain torus semicircularis (TS), a secondary auditory and mechanosensory lateral line center, and the olfactory bulb (OB), a direct target of the olfactory epithelium. In sum, increased investment in higher order integration centers (telencephalon, TL) occurs as juveniles reach adulthood and exhibit more complex cognitive tasks, whereas investment in modality-dominant regions occurs in earlier stages (TeO) or is relatively consistent across development (TS, OB). Complete optical access throughout Danionella 's lifespan provides a unique opportunity to investigate how changing brain structure over development correlates with changes in connectivity, microcircuitry, or behavior.
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Yamamoto K, Estienne P, Bloch S. Does a Vertebrate Morphotype of Pallial Subdivisions Really Exist? BRAIN, BEHAVIOR AND EVOLUTION 2024:1-18. [PMID: 38952102 DOI: 10.1159/000537746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 02/04/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Comparative neuroanatomists have long sought to determine which part of the pallium in nonmammals is homologous to the mammalian neocortex. A number of similar connectivity patterns across species have led to the idea that the basic organization of the vertebrate brain is relatively conserved; thus, efforts of the last decades have been focused on determining a vertebrate "morphotype" - a model comprising the characteristics believed to have been present in the last common ancestor of all vertebrates. SUMMARY The endeavor to determine the vertebrate morphotype has been riddled with controversies due to the extensive morphological diversity of the pallium among vertebrate taxa. Nonetheless, most proposed scenarios of pallial homology are variants of a common theme where the vertebrate pallium is subdivided into subdivisions homologous to the hippocampus, neocortex, piriform cortex, and amygdala, in a one-to-one manner. We review the rationales of major propositions of pallial homology and identify the source of the discrepancies behind different hypotheses. We consider that a source of discrepancies is the prevailing assumption that there is a single "morphotype of the pallial subdivisions" throughout vertebrates. Instead, pallial subdivisions present in different taxa probably evolved independently in each lineage. KEY MESSAGES We encounter discrepancies when we search for a single morphotype of subdivisions across vertebrates. These discrepancies can be resolved by considering that several subdivisions within the pallium were established after the divergence of the different lineages. The differences of pallial organization are especially remarkable between actinopterygians (including teleost fishes) and other vertebrates. Thus, the prevailing notion of a simple one-to-one homology between the mammalian and teleost pallia needs to be reconsidered.
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Affiliation(s)
- Kei Yamamoto
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRS UMR 9197, Saclay, France
| | - Pierre Estienne
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRS UMR 9197, Saclay, France
| | - Solal Bloch
- Université de Tours, INSERM, Imaging Brain & Neuropsychiatry iBraiN U1253, 37032, Tours, France
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5
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Morizet D, Foucher I, Alunni A, Bally-Cuif L. Reconstruction of macroglia and adult neurogenesis evolution through cross-species single-cell transcriptomic analyses. Nat Commun 2024; 15:3306. [PMID: 38632253 PMCID: PMC11024210 DOI: 10.1038/s41467-024-47484-1] [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: 04/14/2023] [Accepted: 03/29/2024] [Indexed: 04/19/2024] Open
Abstract
Macroglia fulfill essential functions in the adult vertebrate brain, producing and maintaining neurons and regulating neuronal communication. However, we still know little about their emergence and diversification. We used the zebrafish D. rerio as a distant vertebrate model with moderate glial diversity as anchor to reanalyze datasets covering over 600 million years of evolution. We identify core features of adult neurogenesis and innovations in the mammalian lineage with a potential link to the rarity of radial glia-like cells in adult humans. Our results also suggest that functions associated with astrocytes originated in a multifunctional cell type fulfilling both neural stem cell and astrocytic functions before these diverged. Finally, we identify conserved elements of macroglial cell identity and function and their time of emergence during evolution.
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Affiliation(s)
- David Morizet
- Institut Pasteur, Université Paris Cité, CNRS UMR3738, Zebrafish Neurogenetics Unit, Team supported by the Ligue Nationale Contre le Cancer, F-75015, Paris, France.
- Sorbonne Université, Collège doctoral, F-75005, Paris, France.
| | - Isabelle Foucher
- Institut Pasteur, Université Paris Cité, CNRS UMR3738, Zebrafish Neurogenetics Unit, Team supported by the Ligue Nationale Contre le Cancer, F-75015, Paris, France
| | - Alessandro Alunni
- Institut Pasteur, Université Paris Cité, CNRS UMR3738, Zebrafish Neurogenetics Unit, Team supported by the Ligue Nationale Contre le Cancer, F-75015, Paris, France
- Institut des Neurosciences Paris-Saclay, Université Paris-Saclay, CNRS UMR9197, F-91190, Gif-sur-Yvette, France
| | - Laure Bally-Cuif
- Institut Pasteur, Université Paris Cité, CNRS UMR3738, Zebrafish Neurogenetics Unit, Team supported by the Ligue Nationale Contre le Cancer, F-75015, Paris, France.
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González-Iglesias A, Arcas A, Domingo-Muelas A, Mancini E, Galcerán J, Valcárcel J, Fariñas I, Nieto MA. Intron detention tightly regulates the stemness/differentiation switch in the adult neurogenic niche. Nat Commun 2024; 15:2837. [PMID: 38565566 PMCID: PMC10987655 DOI: 10.1038/s41467-024-47092-z] [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: 12/06/2021] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
The adult mammalian brain retains some capacity to replenish neurons and glia, holding promise for brain regeneration. Thus, understanding the mechanisms controlling adult neural stem cell (NSC) differentiation is crucial. Paradoxically, adult NSCs in the subependymal zone transcribe genes associated with both multipotency maintenance and neural differentiation, but the mechanism that prevents conflicts in fate decisions due to these opposing transcriptional programmes is unknown. Here we describe intron detention as such control mechanism. In NSCs, while multiple mRNAs from stemness genes are spliced and exported to the cytoplasm, transcripts from differentiation genes remain unspliced and detained in the nucleus, and the opposite is true under neural differentiation conditions. We also show that m6A methylation is the mechanism that releases intron detention and triggers nuclear export, enabling rapid and synchronized responses. m6A RNA methylation operates as an on/off switch for transcripts with antagonistic functions, tightly controlling the timing of NSCs commitment to differentiation.
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Affiliation(s)
| | - Aida Arcas
- Instituto de Neurociencias (CSIC-UMH), Sant Joan d'Alacant, 03550, Spain
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, 31008, Spain
| | - Ana Domingo-Muelas
- Departamento de Biología Celular, Biología Funcional y Antropología Física and Instituto de Biotecnología y Biomedicina, Universidad de Valencia, Burjassot, 46100, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28029, Madrid, Spain
- Carlos Simon Foundation, 46980, Paterna, Valencia, Spain
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Igenomix Foundation, 46980, Paterna, Valencia, Spain
| | - Estefania Mancini
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, 08003, Spain
| | - Joan Galcerán
- Instituto de Neurociencias (CSIC-UMH), Sant Joan d'Alacant, 03550, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Raras (CIBERER), 28029, Madrid, Spain
| | - Juan Valcárcel
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, 08003, Spain
- Universitat Pompeu Fabra (UPF), 08003, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010, Barcelona, Spain
| | - Isabel Fariñas
- Departamento de Biología Celular, Biología Funcional y Antropología Física and Instituto de Biotecnología y Biomedicina, Universidad de Valencia, Burjassot, 46100, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28029, Madrid, Spain
| | - M Angela Nieto
- Instituto de Neurociencias (CSIC-UMH), Sant Joan d'Alacant, 03550, Spain.
- Centro de Investigación Biomédica en Red sobre Enfermedades Raras (CIBERER), 28029, Madrid, Spain.
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7
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Folgueira M, Clarke JDW. Telencephalic eversion in embryos and early larvae of four teleost species. Evol Dev 2024; 26:e12474. [PMID: 38425004 DOI: 10.1111/ede.12474] [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: 11/28/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
The telencephalon of ray-finned fishes undergoes eversion, which is very different to the evagination that occurs in most other vertebrates. Ventricle morphogenesis is key to build an everted telencephalon. Thus, here we use the apical marker zona occludens 1 to understand ventricle morphology, extension of the tela choroidea and the eversion process during early telencephalon development of four teleost species: giant danio (Devario aequipinnatus), blind cavefish (Astyanax mexicanus), medaka (Oryzias latipes), and paradise fish (Macroposus opercularis). In addition, by using immunohistochemistry against tubulin and calcium-binding proteins, we analyze the general morphology of the telencephalon, showing changes in the location and extension of the olfactory bulb and other telencephalic regions from 2 to 5 days of development. We also analyze the impact of abnormal eye and telencephalon morphogenesis on eversion, showing that cyclops mutants do undergo eversion despite very dramatic abnormal eye morphology. We discuss how the formation of the telencephalic ventricle in teleost fish, with its characteristic shape, is a crucial event during eversion.
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Affiliation(s)
- Mónica Folgueira
- Departamento de Bioloxía, Facultade de Ciencias, Centro Interdisciplinar de Química e Bioloxía (CICA), Universidade da Coruña, A Coruña, Spain
| | - Jonathan D W Clarke
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
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Valamparamban GF, Spéder P. Homemade: building the structure of the neurogenic niche. Front Cell Dev Biol 2023; 11:1275963. [PMID: 38107074 PMCID: PMC10722289 DOI: 10.3389/fcell.2023.1275963] [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: 08/10/2023] [Accepted: 11/16/2023] [Indexed: 12/19/2023] Open
Abstract
Neural stem/progenitor cells live in an intricate cellular environment, the neurogenic niche, which supports their function and enables neurogenesis. The niche is made of a diversity of cell types, including neurons, glia and the vasculature, which are able to signal to and are structurally organised around neural stem/progenitor cells. While the focus has been on how individual cell types signal to and influence the behaviour of neural stem/progenitor cells, very little is actually known on how the niche is assembled during development from multiple cellular origins, and on the role of the resulting topology on these cells. This review proposes to draw a state-of-the art picture of this emerging field of research, with the aim to expose our knowledge on niche architecture and formation from different animal models (mouse, zebrafish and fruit fly). We will span its multiple aspects, from the existence and importance of local, adhesive interactions to the potential emergence of larger-scale topological properties through the careful assembly of diverse cellular and acellular components.
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Affiliation(s)
| | - Pauline Spéder
- Institut Pasteur, Université Paris Cité, CNRS UMR3738, Structure and Signals in the Neurogenic Niche, Paris, France
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Tibi M, Biton Hayun S, Hochgerner H, Lin Z, Givon S, Ophir O, Shay T, Mueller T, Segev R, Zeisel A. A telencephalon cell type atlas for goldfish reveals diversity in the evolution of spatial structure and cell types. SCIENCE ADVANCES 2023; 9:eadh7693. [PMID: 37910612 PMCID: PMC10619943 DOI: 10.1126/sciadv.adh7693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023]
Abstract
Teleost fish form the largest group of vertebrates and show a tremendous variety of adaptive behaviors, making them critically important for the study of brain evolution and cognition. The neural basis mediating these behaviors remains elusive. We performed a systematic comparative survey of the goldfish telencephalon. We mapped cell types using single-cell RNA sequencing and spatial transcriptomics, resulting in de novo molecular neuroanatomy parcellation. Glial cells were highly conserved across 450 million years of evolution separating mouse and goldfish, while neurons showed diversity and modularity in gene expression. Specifically, somatostatin interneurons, famously interspersed in the mammalian isocortex for local inhibitory input, were curiously aggregated in a single goldfish telencephalon nucleus but molecularly conserved. Cerebral nuclei including the striatum, a hub for motivated behavior in amniotes, had molecularly conserved goldfish homologs. We suggest elements of a hippocampal formation across the goldfish pallium. Last, aiding study of the teleostan everted telencephalon, we describe substantial molecular similarities between goldfish and zebrafish neuronal taxonomies.
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Affiliation(s)
- Muhammad Tibi
- Faculty of Biotechnology and Food Engineering, Technion–Israel Institute of Technology, 3200003 Haifa, Israel
| | - Stav Biton Hayun
- Department of Biomedical Engineering, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Hannah Hochgerner
- Faculty of Biotechnology and Food Engineering, Technion–Israel Institute of Technology, 3200003 Haifa, Israel
| | - Zhige Lin
- Faculty of Biotechnology and Food Engineering, Technion–Israel Institute of Technology, 3200003 Haifa, Israel
| | - Shachar Givon
- Department of Life Sciences, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Osnat Ophir
- Faculty of Biotechnology and Food Engineering, Technion–Israel Institute of Technology, 3200003 Haifa, Israel
| | - Tal Shay
- Department of Life Sciences, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Thomas Mueller
- Department of Biology, Montclair State University, 1 Normal Avenue, Montclair, NJ 07043, USA
| | - Ronen Segev
- Department of Biomedical Engineering, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
- Department of Life Sciences, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
- The School of Brain Sciences and Cognition, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Amit Zeisel
- Faculty of Biotechnology and Food Engineering, Technion–Israel Institute of Technology, 3200003 Haifa, Israel
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Bagnoli S, Chiavacci E, Cellerino A, Terzibasi Tozzini E. Localization and Characterization of Major Neurogenic Niches in the Brain of the Lesser-Spotted Dogfish Scyliorhinus canicula. Int J Mol Sci 2023; 24:ijms24043650. [PMID: 36835066 PMCID: PMC9967623 DOI: 10.3390/ijms24043650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Adult neurogenesis is defined as the ability of specialized cells in the postnatal brain to produce new functional neurons and to integrate them into the already-established neuronal network. This phenomenon is common in all vertebrates and has been found to be extremely relevant for numerous processes, such as long-term memory, learning, and anxiety responses, and it has been also found to be involved in neurodegenerative and psychiatric disorders. Adult neurogenesis has been studied extensively in many vertebrate models, from fish to human, and observed also in the more basal cartilaginous fish, such as the lesser-spotted dogfish, Scyliorhinus canicula, but a detailed description of neurogenic niches in this animal is, to date, limited to the telencephalic areas. With this article, we aim to extend the characterization of the neurogenic niches of S. canicula in other main areas of the brain: we analyzed via double immunofluorescence sections of telencephalon, optic tectum, and cerebellum with markers of proliferation (PCNA) and mitosis (pH3) in conjunction with glial cell (S100β) and stem cell (Msi1) markers, to identify the actively proliferating cells inside the neurogenic niches. We also labeled adult postmitotic neurons (NeuN) to exclude double labeling with actively proliferating cells (PCNA). Lastly, we observed the presence of the autofluorescent aging marker, lipofuscin, contained inside lysosomes in neurogenic areas.
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Affiliation(s)
- Sara Bagnoli
- Biology Laboratory (BIO@SNS), Scuola Normale Superiore, 56126 Pisa, Italy
| | - Elena Chiavacci
- Biology Laboratory (BIO@SNS), Scuola Normale Superiore, 56126 Pisa, Italy
- Biology and Evolution of Marine Organisms Department (BEOM), Stazione Zoologica Anton Dohrn, 80121 Napoli, Italy
| | - Alessandro Cellerino
- Biology Laboratory (BIO@SNS), Scuola Normale Superiore, 56126 Pisa, Italy
- Fritz Lipmann Institute for Age Research, Leibniz Institute, 07745 Jena, Germany
| | - Eva Terzibasi Tozzini
- Biology and Evolution of Marine Organisms Department (BEOM), Stazione Zoologica Anton Dohrn, 80121 Napoli, Italy
- Correspondence:
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11
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Burgess HA, Burton EA. A Critical Review of Zebrafish Neurological Disease Models-1. The Premise: Neuroanatomical, Cellular and Genetic Homology and Experimental Tractability. OXFORD OPEN NEUROSCIENCE 2023; 2:kvac018. [PMID: 37649777 PMCID: PMC10464506 DOI: 10.1093/oons/kvac018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/13/2022] [Indexed: 09/01/2023]
Abstract
The last decade has seen a dramatic rise in the number of genes linked to neurological disorders, necessitating new models to explore underlying mechanisms and to test potential therapies. Over a similar period, many laboratories adopted zebrafish as a tractable model for studying brain development, defining neural circuits and performing chemical screens. Here we discuss strengths and limitations of using the zebrafish system to model neurological disorders. The underlying premise for many disease models is the high degree of homology between human and zebrafish genes, coupled with the conserved vertebrate Bauplan and repertoire of neurochemical signaling molecules. Yet, we caution that important evolutionary divergences often limit the extent to which human symptoms can be modeled meaningfully in zebrafish. We outline advances in genetic technologies that allow human mutations to be reproduced faithfully in zebrafish. Together with methods that visualize the development and function of neuronal pathways at the single cell level, there is now an unprecedented opportunity to understand how disease-associated genetic changes disrupt neural circuits, a level of analysis that is ideally suited to uncovering pathogenic changes in human brain disorders.
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Affiliation(s)
- Harold A Burgess
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Edward A Burton
- Pittsburgh Institute for Neurodegenerative Diseases, University of Pittsburgh, Pittsburgh, PA, 15260, USA
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA,15260, USA
- Geriatric Research, Education, and Clinical Center, Pittsburgh VA Healthcare System, Pittsburgh, PA, 15240, USA
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12
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Lalonde RL, Kemmler CL, Riemslagh FW, Aman AJ, Kresoja-Rakic J, Moran HR, Nieuwenhuize S, Parichy DM, Burger A, Mosimann C. Heterogeneity and genomic loci of ubiquitous transgenic Cre reporter lines in zebrafish. Dev Dyn 2022; 251:1754-1773. [PMID: 35582941 PMCID: PMC10069295 DOI: 10.1002/dvdy.499] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The most-common strategy for zebrafish Cre/lox-mediated lineage labeling experiments combines ubiquitously expressed, lox-based Switch reporter transgenes with tissue-specific Cre or 4-OH-Tamoxifen-inducible CreERT2 driver lines. Although numerous Cre driver lines have been produced, only a few broadly expressed Switch reporters exist in zebrafish and their generation by random transgene integration has been challenging due to position-effect sensitivity of the lox-flanked recombination cassettes. Here, we compare commonly used Switch reporter lines for their recombination efficiency and reporter expression pattern during zebrafish development. RESULTS Using different experimental setups, we show that ubi:Switch and hsp70l:Switch outperform current generations of the two additional Switch reporters actb2:BFP-DsRed and actb2:Stop-DsRed. Our comparisons also document preferential Cre-dependent recombination of ubi:Switch and hsp70l:Switch in distinct zebrafish tissues at early developmental stages. To investigate what genomic features may influence Cre accessibility and lox recombination efficiency in highly functional Switch lines, we mapped these transgenes and charted chromatin dynamics at their integration sites. CONCLUSIONS Our data documents the heterogeneity among lox-based Switch transgenes toward informing suitable transgene selection for lineage labeling experiments. Our work further proposes that ubi:Switch and hsp70l:Switch define genomic integration sites suitable for universal transgene or switch reporter knock-in in zebrafish.
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Affiliation(s)
- Robert L Lalonde
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Cassie L Kemmler
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Fréderike W Riemslagh
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Andrew J Aman
- Department of Biology, University of Virginia, Charlottesville, Virginia, USA.,Department of Biology and Department of Cell Biology, University of Virginia, Charlottesville, Virginia, USA
| | - Jelena Kresoja-Rakic
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Hannah R Moran
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Susan Nieuwenhuize
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - David M Parichy
- Department of Biology, University of Virginia, Charlottesville, Virginia, USA.,Department of Biology and Department of Cell Biology, University of Virginia, Charlottesville, Virginia, USA
| | - Alexa Burger
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christian Mosimann
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
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13
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Gómez A, Rodríguez-Expósito B, Ocaña FM, Salas C, Rodríguez F. Trace classical conditioning impairment after lesion of the lateral part of the goldfish telencephalic pallium suggests a long ancestry of the episodic memory function of the vertebrate hippocampus. Brain Struct Funct 2022; 227:2879-2890. [PMID: 36006500 DOI: 10.1007/s00429-022-02553-3] [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: 02/02/2022] [Accepted: 08/10/2022] [Indexed: 11/24/2022]
Abstract
There is an ongoing debate on the evolutionary origin of the episodic memory function of the hippocampus. A widely accepted hypothesis claims that the hippocampus first evolved as a dedicated system for spatial navigation in ancestral vertebrates, being transformed later in phylogeny to support a broader role in episodic memory with the emergence of mammals. On the contrary, an alternative hypothesis holds that the hippocampus of ancestral vertebrates originally encoded both the spatial and temporal dimensions of relational memories since its evolutionary appearance, thus suggesting that the episodic-like memory function of the hippocampus could be the primitive condition in vertebrate forebrain evolution. The present experiment was aimed at scrutinizing these opposing hypotheses by investigating whether the hippocampal pallium of teleost fish, a vertebrate group that shares with mammals a common ancestor that lived about 400 Mya, is, like the hippocampus of mammals, essential to associate time-discontiguous events. Thus, goldfish with lesions in the ventral part of the dorsolateral pallium (Dlv), a telencephalic region considered homologous to the hippocampal pallium of land vertebrates, were trained in trace versus delay eyeblink-like classical conditioning, two learning procedures that differ only in the temporal relationships between the stimuli to be associated in memory. The results showed that hippocampal pallium lesion in goldfish severely impairs trace conditioning, but spares delay conditioning. This finding challenges the idea that navigation preceded relational memory in evolutionary appearance and suggests the possibility that a relational memory function that associates the experienced events in both the spatial and temporal dimensions could be a primitive feature of the hippocampus that pre-existed in the common ancestor of vertebrates.
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Affiliation(s)
- A Gómez
- Laboratory of Psychobiology, Universidad de Sevilla, Seville, Spain
| | | | - F M Ocaña
- Laboratory of Psychobiology, Universidad de Sevilla, Seville, Spain
| | - C Salas
- Laboratory of Psychobiology, Universidad de Sevilla, Seville, Spain.
| | - F Rodríguez
- Laboratory of Psychobiology, Universidad de Sevilla, Seville, Spain
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14
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Mazzitelli-Fuentes LS, Román FR, Castillo Elías JR, Deleglise EB, Mongiat LA. Spatial Learning Promotes Adult Neurogenesis in Specific Regions of the Zebrafish Pallium. Front Cell Dev Biol 2022; 10:840964. [PMID: 35646912 PMCID: PMC9130729 DOI: 10.3389/fcell.2022.840964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/29/2022] [Indexed: 11/13/2022] Open
Abstract
Adult neurogenesis could be considered as a homeostatic mechanism that accompanies the continuous growth of teleost fish. As an alternative but not excluding hypothesis, adult neurogenesis would provide a form of plasticity necessary to adapt the brain to environmental challenges. The zebrafish pallium is a brain structure involved in the processing of various cognitive functions and exhibits extended neurogenic niches throughout the periventricular zone. The involvement of neuronal addition as a learning-related plastic mechanism has not been explored in this model, yet. In this work, we trained adult zebrafish in a spatial behavioral paradigm and evaluated the neurogenic dynamics in different pallial niches. We found that adult zebrafish improved their performance in a cue-guided rhomboid maze throughout five daily sessions, being the fish able to relearn the task after a rule change. This cognitive activity increased cell proliferation exclusively in two pallial regions: the caudal lateral pallium (cLP) and the rostral medial pallium (rMP). To assessed whether learning impinges on pallial adult neurogenesis, mitotic cells were labeled by BrdU administration, and then fish were trained at different periods of adult-born neuron maturation. Our results indicate that adult-born neurons are being produced on demand in rMP and cLP during the learning process, but with distinct critical periods among these regions. Next, we evaluated the time course of adult neurogenesis by pulse and chase experiments. We found that labeled cells decreased between 4 and 32 dpl in both learning-sensitive regions, whereas a fraction of them continues proliferating over time. By modeling the population dynamics of neural stem cells (NSC), we propose that learning increases adult neurogenesis by two mechanisms: driving a chained proliferation of labeled NSC and rescuing newborn neurons from death. Our findings highlight adult neurogenesis as a conserved source of brain plasticity and shed light on a rostro-caudal specialization of pallial neurogenic niches in adult zebrafish.
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Affiliation(s)
- Laura S Mazzitelli-Fuentes
- Departamento de Física Médica, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina.,Consejo Nacional de Investigaciones Científicas y, Técnicas, Argentina.,Instituto Balseiro, Centro Atómico Bariloche, San Carlos de Bariloche, Argentina
| | - Fernanda R Román
- Departamento de Física Médica, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina.,Consejo Nacional de Investigaciones Científicas y, Técnicas, Argentina.,Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina
| | - Julio R Castillo Elías
- Departamento de Física Médica, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina.,Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Emilia B Deleglise
- Departamento de Física Médica, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina.,Consejo Nacional de Investigaciones Científicas y, Técnicas, Argentina.,Instituto Balseiro, Centro Atómico Bariloche, San Carlos de Bariloche, Argentina
| | - Lucas A Mongiat
- Departamento de Física Médica, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina.,Consejo Nacional de Investigaciones Científicas y, Técnicas, Argentina
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15
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Turner KJ, Hawkins TA, Henriques PM, Valdivia LE, Bianco IH, Wilson SW, Folgueira M. A Structural Atlas of the Developing Zebrafish Telencephalon Based on Spatially-Restricted Transgene Expression. Front Neuroanat 2022; 16:840924. [PMID: 35721460 PMCID: PMC9198225 DOI: 10.3389/fnana.2022.840924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/22/2022] [Indexed: 11/28/2022] Open
Abstract
Zebrafish telencephalon acquires an everted morphology by a two-step process that occurs from 1 to 5 days post-fertilization (dpf). Little is known about how this process affects the positioning of discrete telencephalic cell populations, hindering our understanding of how eversion impacts telencephalic structural organization. In this study, we characterize the neurochemistry, cycle state and morphology of an EGFP positive (+) cell population in the telencephalon of Et(gata2:EGFP)bi105 transgenic fish during eversion and up to 20dpf. We map the transgene insertion to the early-growth-response-gene-3 (egr3) locus and show that EGFP expression recapitulates endogenous egr3 expression throughout much of the pallial telencephalon. Using the gata2:EGFPbi105 transgene, in combination with other well-characterized transgenes and structural markers, we track the development of various cell populations in the zebrafish telencephalon as it undergoes the morphological changes underlying eversion. These datasets were registered to reference brains to form an atlas of telencephalic development at key stages of the eversion process (1dpf, 2dpf, and 5dpf) and compared to expression in adulthood. Finally, we registered gata2:EGFPbi105 expression to the Zebrafish Brain Browser 6dpf reference brain (ZBB, see Marquart et al., 2015, 2017; Tabor et al., 2019), to allow comparison of this expression pattern with anatomical data already in ZBB.
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Affiliation(s)
- Katherine J. Turner
- Department of Cell and Developmental Biology, University College London, London, United Kingdom
| | - Thomas A. Hawkins
- Department of Cell and Developmental Biology, University College London, London, United Kingdom
| | - Pedro M. Henriques
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom
| | - Leonardo E. Valdivia
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - Isaac H. Bianco
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom
| | - Stephen W. Wilson
- Department of Cell and Developmental Biology, University College London, London, United Kingdom
- *Correspondence: Stephen W. Wilson,
| | - Mónica Folgueira
- Department of Cell and Developmental Biology, University College London, London, United Kingdom
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA), Facultade de Ciencias, Department of Biology, University of A Coruña, A Coruña, Spain
- Mónica Folgueira,
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16
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Lal P, Kawakami K. Integrated Behavioral, Genetic and Brain Circuit Visualization Methods to Unravel Functional Anatomy of Zebrafish Amygdala. Front Neuroanat 2022; 16:837527. [PMID: 35692259 PMCID: PMC9174433 DOI: 10.3389/fnana.2022.837527] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/11/2022] [Indexed: 11/23/2022] Open
Abstract
The mammalian amygdala is a complex forebrain structure consisting of a heterogeneous group of nuclei derived from the pallial and subpallial telencephalon. It plays a critical role in a broad range of behaviors such as emotion, cognition, and social behavior; within the amygdala each nucleus has a distinct role in these behavioral processes. Topological, hodological, molecular, and functional studies suggest the presence of an amygdala-like structure in the zebrafish brain. It has been suggested that the pallial amygdala homolog corresponds to the medial zone of the dorsal telencephalon (Dm) and the subpallial amygdala homolog corresponds to the nuclei in the ventral telencephalon located close to and topographically basal to Dm. However, these brain regions are broad and understanding the functional anatomy of the zebrafish amygdala requires investigating the role of specific populations of neurons in brain function and behavior. In zebrafish, the highly efficient Tol2 transposon-mediated transgenesis method together with the targeted gene expression by the Gal4-UAS system has been a powerful tool in labeling, visualizing, and manipulating the function of specific cell types in the brain. The transgenic resource combined with neuronal activity imaging, optogenetics, pharmacology, and quantitative behavioral analyses enables functional analyses of neuronal circuits. Here, we review earlier studies focused on teleost amygdala anatomy and function and discuss how the transgenic resource and tools can help unravel the functional anatomy of the zebrafish amygdala.
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Affiliation(s)
- Pradeep Lal
- Integrative Fish Biology Group, Climate and Environment Department, NORCE Norwegian Research Centre, Bergen, Norway
- *Correspondence: Pradeep Lal
| | - Koichi Kawakami
- Division of Molecular and Developmental Biology, National Institute of Genetics, and Department of Genetics, Graduate University for Advanced Studies (SOKENDAI), Mishima, Japan
- Koichi Kawakami
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17
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Paulissen SM, Castranova DM, Krispin SM, Burns MC, Menéndez J, Torres-Vázquez J, Weinstein BM. Anatomy and development of the pectoral fin vascular network in the zebrafish. Development 2022; 149:dev199676. [PMID: 35132436 PMCID: PMC8959142 DOI: 10.1242/dev.199676] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 01/24/2022] [Indexed: 12/15/2022]
Abstract
The pectoral fins of teleost fish are analogous structures to human forelimbs, and the developmental mechanisms directing their initial growth and patterning are conserved between fish and tetrapods. The forelimb vasculature is crucial for limb function, and it appears to play important roles during development by promoting development of other limb structures, but the steps leading to its formation are poorly understood. In this study, we use high-resolution imaging to document the stepwise assembly of the zebrafish pectoral fin vasculature. We show that fin vascular network formation is a stereotyped, choreographed process that begins with the growth of an initial vascular loop around the pectoral fin. This loop connects to the dorsal aorta to initiate pectoral vascular circulation. Pectoral fin vascular development continues with concurrent formation of three elaborate vascular plexuses, one in the distal fin that develops into the fin-ray vasculature and two near the base of the fin in association with the developing fin musculature. Our findings detail a complex, yet highly choreographed, series of steps involved in the development of a complete, functional, organ-specific vascular network.
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Affiliation(s)
- Scott M. Paulissen
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20892, USA
| | - Daniel M. Castranova
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20892, USA
| | - Shlomo M. Krispin
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20892, USA
| | - Margaret C. Burns
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20892, USA
| | - Javier Menéndez
- Department of Cell Biology, Skirball Institute of Biomolecular Medicine, New York University Langone Medical Center, NY 10016, USA
| | - Jesús Torres-Vázquez
- Department of Cell Biology, Skirball Institute of Biomolecular Medicine, New York University Langone Medical Center, NY 10016, USA
| | - Brant M. Weinstein
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20892, USA
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18
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Multicolor strategies for investigating clonal expansion and tissue plasticity. Cell Mol Life Sci 2022; 79:141. [PMID: 35187598 PMCID: PMC8858928 DOI: 10.1007/s00018-021-04077-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 09/27/2021] [Accepted: 10/14/2021] [Indexed: 12/20/2022]
Abstract
Understanding the generation of complexity in living organisms requires the use of lineage tracing tools at a multicellular scale. In this review, we describe the different multicolor strategies focusing on mouse models expressing several fluorescent reporter proteins, generated by classical (MADM, Brainbow and its multiple derivatives) or acute (StarTrack, CLoNe, MAGIC Markers, iOn, viral vectors) transgenesis. After detailing the multi-reporter genetic strategies that serve as a basis for the establishment of these multicolor mouse models, we briefly mention other animal and cellular models (zebrafish, chicken, drosophila, iPSC) that also rely on these constructs. Then, we highlight practical applications of multicolor mouse models to better understand organogenesis at single progenitor scale (clonal analyses) in the brain and briefly in several other tissues (intestine, skin, vascular, hematopoietic and immune systems). In addition, we detail the critical contribution of multicolor fate mapping strategies in apprehending the fine cellular choreography underlying tissue morphogenesis in several models with a particular focus on brain cytoarchitecture in health and diseases. Finally, we present the latest technological advances in multichannel and in-depth imaging, and automated analyses that enable to better exploit the large amount of data generated from multicolored tissues.
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19
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Marquez-Legorreta E, Constantin L, Piber M, Favre-Bulle IA, Taylor MA, Blevins AS, Giacomotto J, Bassett DS, Vanwalleghem GC, Scott EK. Brain-wide visual habituation networks in wild type and fmr1 zebrafish. Nat Commun 2022; 13:895. [PMID: 35173170 PMCID: PMC8850451 DOI: 10.1038/s41467-022-28299-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 01/12/2022] [Indexed: 11/09/2022] Open
Abstract
Habituation is a form of learning during which animals stop responding to repetitive stimuli, and deficits in habituation are characteristic of several psychiatric disorders. Due to technical challenges, the brain-wide networks mediating habituation are poorly understood. Here we report brain-wide calcium imaging during larval zebrafish habituation to repeated visual looming stimuli. We show that different functional categories of loom-sensitive neurons are located in characteristic locations throughout the brain, and that both the functional properties of their networks and the resulting behavior can be modulated by stimulus saliency and timing. Using graph theory, we identify a visual circuit that habituates minimally, a moderately habituating midbrain population proposed to mediate the sensorimotor transformation, and downstream circuit elements responsible for higher order representations and the delivery of behavior. Zebrafish larvae carrying a mutation in the fmr1 gene have a systematic shift toward sustained premotor activity in this network, and show slower behavioral habituation.
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Affiliation(s)
- Emmanuel Marquez-Legorreta
- The Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia.,Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, USA
| | - Lena Constantin
- The Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Marielle Piber
- School of Medicine, Medical Sciences, and Nutrition, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| | - Itia A Favre-Bulle
- The Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia.,School of Mathematics and Physics, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Michael A Taylor
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Ann S Blevins
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jean Giacomotto
- The Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia.,Queensland Centre for Mental Health Research, West Moreton Hospital and Health Service, Wacol, QLD, 4076, Australia.,Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD, 4111, Australia.,Discovery Biology, Griffith University, Brisbane, QLD, 4111, Australia
| | - Dani S Bassett
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Departments of Electrical & Systems Engineering, Physics & Astronomy, Neurology, Psychiatry, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Santa Fe Institute, Santa Fe, NM, 87501, USA
| | - Gilles C Vanwalleghem
- The Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia. .,Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic-EMBL Partnership for Molecular Medicine, Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark.
| | - Ethan K Scott
- The Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia.
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20
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Molecular Markers of Adult Neurogenesis in the Telencephalon and Tectum of Rainbow Trout, Oncorhynchus mykiss. Int J Mol Sci 2022; 23:ijms23031188. [PMID: 35163116 PMCID: PMC8835435 DOI: 10.3390/ijms23031188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/17/2022] [Accepted: 01/17/2022] [Indexed: 12/04/2022] Open
Abstract
In the brain of teleost fish, radial glial cells are the major type of astroglial cells. To answer the question as to how radial glia structures adapt to the continuous growth of the brain, which is characteristic of salmonids, it is necessary to study various types of cells (neuronal precursors, astroglial cells, and cells in a state of neuronal differentiation) in the major integrative centers of the salmon brain (telencephalon and tectum opticum), using rainbow trout, Oncorhynchus mykiss, as a model. A study of the distribution of several molecular markers in the telencephalon and tectum with the identification of neural stem/progenitor cells, neuroblasts, and radial glia was carried out on juvenile (three-year-old) O. mykiss. The presence of all of these cell types provides specific conditions for the adult neurogenesis processes in the trout telencephalon and tectum. The distribution of glutamine synthetase, a molecular marker of neural stem cells, in the trout telencephalon revealed a large population of radial glia (RG) corresponding to adult-type neural stem cells (NSCs). RG dominated the pallial region of the telencephalon, while, in the subpallial region, RG was found in the lateral and ventral zones. In the optic tectum, RG fibers were widespread and localized both in the marginal layer and in the periventricular gray layer. Doublecortin (DC) immunolabeling revealed a large population of neuroblasts formed in the postembryonic period, which is indicative of intense adult neurogenesis in the trout brain. The pallial and subpallial regions of the telencephalon contained numerous DC+ cells and their clusters. In the tectum, DC+ cells were found not only in the stratum griseum periventriculare (SGP) and longitudinal torus (TL) containing proliferating cells, but also in the layers containing differentiated neurons: the central gray layer, the periventricular gray and white layers, and the superficial white layer. A study of the localization patterns of vimentin and nestin in the trout telencephalon and tectum showed the presence of neuroepithelial neural stem cells (eNSCs) and ependymoglial cells in the periventricular matrix zones of the brain. The presence of vimentin and nestin in the functionally heterogeneous cell types of adult trout indicates new functional properties of these proteins and their heterogeneous involvement in intracellular motility and adult neurogenesis. Investigation into the later stages of neuronal development in various regions of the fish brain can substantially elucidate the major mechanisms of adult neurogenesis, but it can also contribute to understanding the patterns of formation of certain brain regions and the involvement of RG in the construction of the definite brain structure.
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21
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Yáñez J, Folgueira M, Lamas I, Anadón R. The organization of the zebrafish pallium from a hodological perspective. J Comp Neurol 2021; 530:1164-1194. [PMID: 34697803 DOI: 10.1002/cne.25268] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 12/23/2022]
Abstract
We studied the connections (connectome) of the adult zebrafish pallium using carbocyanine dye tracing and ancillary anatomical methods. The everted zebrafish pallium (dorsal telencephalic area, D) is composed of several major zones (medial, lateral, dorsal, central, anterior, and posterior) distinguishable by their topography, cytoarchitecture, immunohistochemistry, and genoarchitecture. Our comprehensive study reveals poor interconnectivity between these pallial areas, especially between medial (Dm), lateral/dorsal (Dl, Dd), and posterior (Dp) regions. This suggests that the zebrafish pallium has dedicated modules for different neural processes. Pallial connections with extrapallial regions also show compartmental organization. Major extratelencephalic afferents come from preglomerular nuclei (to Dl, Dd, and Dm), posterior tuberal nucleus (to Dm), and lateral recess nucleus (to Dl). The subpallial (ventral, V) zones dorsal Vv, Vd, and Vs, considered homologues of the striatum, amygdala, and pallidum, are mainly afferent to Dl/Dd and Dp. Regarding the efferent pathways, they also appear characteristic of each pallial region. Rostral Dm projects to the dorsal entopeduncular nucleus. Dp is interconnected with the olfactory bulbs. The central region (Dc) defined here receives mainly projections from Dl-Dd and projects toward the pretectum and optic tectum, connections, which help to delimiting Dc. The connectome of the adult pallium revealed here complements extant studies on the neuroanatomical organization of the brain, and may be useful for neurogenetic studies performed during early stages of development. The connectome of the zebrafish pallium was also compared with the pallial connections reported in other teleosts, a large group showing high pallial diversity.
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Affiliation(s)
- Julián Yáñez
- Department of Biology, Faculty of Sciences, University of A Coruña, Coruña, Spain.,Centro de Investigaciones Científicas Avanzadas (CICA), University of A Coruña, Coruña, Spain
| | - Mónica Folgueira
- Department of Biology, Faculty of Sciences, University of A Coruña, Coruña, Spain.,Centro de Investigaciones Científicas Avanzadas (CICA), University of A Coruña, Coruña, Spain
| | - Ibán Lamas
- Department of Biology, Faculty of Sciences, University of A Coruña, Coruña, Spain
| | - Ramón Anadón
- Department of Functional Biology, Faculty of Biology, University of Santiago de Compostela, Santiago de Compostela, Spain
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22
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Rodríguez F, Quintero B, Amores L, Madrid D, Salas-Peña C, Salas C. Spatial Cognition in Teleost Fish: Strategies and Mechanisms. Animals (Basel) 2021; 11:2271. [PMID: 34438729 PMCID: PMC8388456 DOI: 10.3390/ani11082271] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/20/2021] [Accepted: 07/28/2021] [Indexed: 01/25/2023] Open
Abstract
Teleost fish have been traditionally considered primitive vertebrates compared to mammals and birds in regard to brain complexity and behavioral functions. However, an increasing amount of evidence suggests that teleosts show advanced cognitive capabilities including spatial navigation skills that parallel those of land vertebrates. Teleost fish rely on a multiplicity of sensory cues and can use a variety of spatial strategies for navigation, ranging from relatively simple body-centered orientation responses to allocentric or "external world-centered" navigation, likely based on map-like relational memory representations of the environment. These distinct spatial strategies are based on separate brain mechanisms. For example, a crucial brain center for egocentric orientation in teleost fish is the optic tectum, which can be considered an essential hub in a wider brain network responsible for the generation of egocentrically referenced actions in space. In contrast, other brain centers, such as the dorsolateral telencephalic pallium of teleost fish, considered homologue to the hippocampal pallium of land vertebrates, seem to be crucial for allocentric navigation based on map-like spatial memory. Such hypothetical relational memory representations endow fish's spatial behavior with considerable navigational flexibility, allowing them, for example, to perform shortcuts and detours.
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Affiliation(s)
| | | | | | | | | | - Cosme Salas
- Laboratorio de Psicobiología, Universidad de Sevilla, 41018 Sevilla, Spain; (F.R.); (B.Q.); (L.A.); (D.M.); (C.S.-P.)
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23
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Gonadotropin Releasing Hormone (Gnrh) Triggers Neurogenesis in the Hypothalamus of Adult Zebrafish. Int J Mol Sci 2021; 22:ijms22115926. [PMID: 34072957 PMCID: PMC8198740 DOI: 10.3390/ijms22115926] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/11/2021] [Accepted: 05/23/2021] [Indexed: 12/11/2022] Open
Abstract
Recently, it has been shown in adult mammals that the hypothalamus can generate new cells in response to metabolic changes, and tanycytes, putative descendants of radial glia, can give rise to neurons. Previously we have shown in vitro that neurospheres generated from the hypothalamus of adult zebrafish show increased neurogenesis in response to exogenously applied hormones. To determine whether adult zebrafish have a hormone-responsive tanycyte-like population in the hypothalamus, we characterized proliferative domains within this region. Here we show that the parvocellular nucleus of the preoptic region (POA) labels with neurogenic/tanycyte markers vimentin, GFAP/Zrf1, and Sox2, but these cells are generally non-proliferative. In contrast, Sox2+ proliferative cells in the ventral POA did not express vimentin and GFAP/Zrf1. A subset of the Sox2+ cells co-localized with Fezf2:GFP, a transcription factor important for neuroendocrine cell specification. Exogenous treatments of GnRH and testosterone were assayed in vivo. While the testosterone-treated animals showed no significant changes in proliferation, the GnRH-treated animals showed significant increases in the number of BrdU-labeled cells and Sox2+ cells. Thus, cells in the proliferative domains of the zebrafish POA do not express radial glia (tanycyte) markers vimentin and GFAP/Zrf1, and yet, are responsive to exogenously applied GnRH treatment.
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Brown SJ, Boussaad I, Jarazo J, Fitzgerald JC, Antony P, Keatinge M, Blechman J, Schwamborn JC, Krüger R, Placzek M, Bandmann O. PINK1 deficiency impairs adult neurogenesis of dopaminergic neurons. Sci Rep 2021; 11:6617. [PMID: 33758225 PMCID: PMC7988014 DOI: 10.1038/s41598-021-84278-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 02/09/2021] [Indexed: 12/14/2022] Open
Abstract
Recent evidence suggests neurogenesis is on-going throughout life but the relevance of these findings for neurodegenerative disorders such as Parkinson's disease (PD) is poorly understood. Biallelic PINK1 mutations cause early onset, Mendelian inherited PD. We studied the effect of PINK1 deficiency on adult neurogenesis of dopaminergic (DA) neurons in two complementary model systems. Zebrafish are a widely-used model to study neurogenesis in development and through adulthood. Using EdU analyses and lineage-tracing studies, we first demonstrate that a subset of ascending DA neurons and adjacent local-projecting DA neurons are each generated into adulthood in wild type zebrafish at a rate that decreases with age. Pink1-deficiency impedes DA neurogenesis in these populations, most significantly in early adult life. Pink1 already exerts an early effect on Th1+ progenitor cells rather than on differentiated DA neurons only. In addition, we investigate the effect of PINK1 deficiency in a human isogenic organoid model. Global neuronal differentiation in PINK1-deficient organoids and isogenic controls is similar, but PINK1-deficient organoids display impeded DA neurogenesis. The observation of impaired adult dopaminergic neurogenesis in Pink1 deficiency in two complementing model systems may have significant consequences for future therapeutic approaches in human PD patients with biallelic PINK1 mutations.
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Affiliation(s)
- Sarah J Brown
- Bateson Centre, University of Sheffield, Sheffield, UK
- Department of Biomedical Science, University of Sheffield, Sheffield, UK
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), The University of Sheffield, 385a Glossop Road, Sheffield, S10 2HQ, UK
| | - Ibrahim Boussaad
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- Disease Modelling and Screening Platform (DMSP), Luxembourg Centre of Systems Biomedicine, University of Luxembourg & Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Javier Jarazo
- Developmental Biology, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- OrganoTherapeutics SARL, Luxembourg, Luxembourg
| | - Julia C Fitzgerald
- Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Paul Antony
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
| | - Marcus Keatinge
- Bateson Centre, University of Sheffield, Sheffield, UK
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), The University of Sheffield, 385a Glossop Road, Sheffield, S10 2HQ, UK
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, Scotland
| | | | - Jens C Schwamborn
- Developmental Biology, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- OrganoTherapeutics SARL, Luxembourg, Luxembourg
| | - Rejko Krüger
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- Parkinson Research Clinic, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg
- Transversal Translational Medicine, Luxembourg Institute of Health (LIH), Luxembourg, Luxembourg
| | - Marysia Placzek
- Bateson Centre, University of Sheffield, Sheffield, UK
- Department of Biomedical Science, University of Sheffield, Sheffield, UK
| | - Oliver Bandmann
- Bateson Centre, University of Sheffield, Sheffield, UK.
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), The University of Sheffield, 385a Glossop Road, Sheffield, S10 2HQ, UK.
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25
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Dray N, Than-Trong E, Bally-Cuif L. Neural stem cell pools in the vertebrate adult brain: Homeostasis from cell-autonomous decisions or community rules? Bioessays 2020; 43:e2000228. [PMID: 33295062 DOI: 10.1002/bies.202000228] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/31/2020] [Accepted: 11/04/2020] [Indexed: 12/15/2022]
Abstract
Adult stem cell populations must coordinate their own maintenance with the generation of differentiated cell types to sustain organ physiology, in a spatially controlled manner and over long periods. Quantitative analyses of clonal dynamics have revealed that, in epithelia, homeostasis is achieved at the population rather than at the single stem cell level, suggesting that feedback mechanisms coordinate stem cell maintenance and progeny generation. In the central nervous system, however, little is known of the possible community processes underlying neural stem cell maintenance. Recent work, in part based on intravital imaging made possible in the adult zebrafish, conclusively highlights that homeostasis in neural stem cell pools may rely on population asymmetry and long-term spatiotemporal coordination of neural stem cell states and fates. These results suggest that neural stem cell assemblies in the vertebrate brain behave as self-organized systems, such that the stem cells themselves generate their own intrinsic niche.
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Affiliation(s)
- Nicolas Dray
- Zebrafish Neurogenetics Unit, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Institut Pasteur, UMR3738, Paris, France
| | - Emmanuel Than-Trong
- Zebrafish Neurogenetics Unit, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Institut Pasteur, UMR3738, Paris, France.,Ecole doctorale Biosigne, Le Kremlin Bicêtre, Université Paris-Saclay, France
| | - Laure Bally-Cuif
- Zebrafish Neurogenetics Unit, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Institut Pasteur, UMR3738, Paris, France
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26
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Bloch S, Hagio H, Thomas M, Heuzé A, Hermel JM, Lasserre E, Colin I, Saka K, Affaticati P, Jenett A, Kawakami K, Yamamoto N, Yamamoto K. Non-thalamic origin of zebrafish sensory nuclei implies convergent evolution of visual pathways in amniotes and teleosts. eLife 2020; 9:e54945. [PMID: 32896272 PMCID: PMC7478893 DOI: 10.7554/elife.54945] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 08/14/2020] [Indexed: 12/17/2022] Open
Abstract
Ascending visual projections similar to the mammalian thalamocortical pathway are found in a wide range of vertebrate species, but their homology is debated. To get better insights into their evolutionary origin, we examined the developmental origin of a thalamic-like sensory structure of teleosts, the preglomerular complex (PG), focusing on the visual projection neurons. Similarly to the tectofugal thalamic nuclei in amniotes, the lateral nucleus of PG receives tectal information and projects to the pallium. However, our cell lineage study in zebrafish reveals that the majority of PG cells are derived from the midbrain, unlike the amniote thalamus. We also demonstrate that the PG projection neurons develop gradually until late juvenile stages. Our data suggest that teleost PG, as a whole, is not homologous to the amniote thalamus. Thus, the thalamocortical-like projections evolved from a non-forebrain cell population, which indicates a surprising degree of variation in the vertebrate sensory systems.
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Affiliation(s)
- Solal Bloch
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
| | - Hanako Hagio
- Laboratory of Fish Biology, Graduate School of Bioagricultural Sciences, Nagoya UniversityNagoyaJapan
- Institute for Advanced Research, Nagoya UniversityNagoyaJapan
| | - Manon Thomas
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
| | - Aurélie Heuzé
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
| | - Jean-Michel Hermel
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
| | - Elodie Lasserre
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
| | - Ingrid Colin
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
| | - Kimiko Saka
- Laboratory of Molecular and Developmental Biology, National Institute of GeneticsMishimaJapan
| | - Pierre Affaticati
- TEFOR Paris-Saclay, CNRS UMS2010, INRA UMS1451, Université Paris-SaclayGif-sur-YvetteFrance
| | - Arnim Jenett
- TEFOR Paris-Saclay, CNRS UMS2010, INRA UMS1451, Université Paris-SaclayGif-sur-YvetteFrance
| | - Koichi Kawakami
- Laboratory of Molecular and Developmental Biology, National Institute of GeneticsMishimaJapan
- Department of Genetics, SOKENDAI (The Graduate University for Advanced Studies)MishimaJapan
| | - Naoyuki Yamamoto
- Laboratory of Fish Biology, Graduate School of Bioagricultural Sciences, Nagoya UniversityNagoyaJapan
| | - Kei Yamamoto
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), Université Paris-Saclay, CNRSGif-sur-YvetteFrance
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27
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Labusch M, Mancini L, Morizet D, Bally-Cuif L. Conserved and Divergent Features of Adult Neurogenesis in Zebrafish. Front Cell Dev Biol 2020; 8:525. [PMID: 32695781 PMCID: PMC7338623 DOI: 10.3389/fcell.2020.00525] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/03/2020] [Indexed: 12/14/2022] Open
Abstract
Adult neurogenesis, i.e., the generation of neurons from neural stem cells (NSCs) in the adult brain, contributes to brain plasticity in all vertebrates. It varies, however, greatly in extent, location and physiological characteristics between species. During the last decade, the teleost zebrafish (D. rerio) was increasingly used to study the molecular and cellular properties of adult NSCs, in particular as a prominent NSC population was discovered at the ventricular surface of the dorsal telencephalon (pallium), in territories homologous to the adult neurogenic niches of rodents. This model, for its specific features (large NSC population, amenability to intravital imaging, high regenerative capacity) allowed rapid progress in the characterization of basic adult NSC features. We review here these findings, with specific comparisons with the situation in rodents. We specifically discuss the cellular nature of NSCs (astroglial or neuroepithelial cells), their heterogeneities and their neurogenic lineages, and the mechanisms controlling NSC quiescence and fate choices, which all impact the neurogenic output. We further discuss the regulation of NSC activity in response to physiological triggers and non-physiological conditions such as regenerative contexts.
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Affiliation(s)
- Miriam Labusch
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR 3738, CNRS, Team Supported by the Ligue Nationale Contre le Cancer, Paris, France.,Sorbonne Université, Collège Doctoral, Paris, France
| | - Laure Mancini
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR 3738, CNRS, Team Supported by the Ligue Nationale Contre le Cancer, Paris, France.,Sorbonne Université, Collège Doctoral, Paris, France
| | - David Morizet
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR 3738, CNRS, Team Supported by the Ligue Nationale Contre le Cancer, Paris, France.,Sorbonne Université, Collège Doctoral, Paris, France
| | - Laure Bally-Cuif
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR 3738, CNRS, Team Supported by the Ligue Nationale Contre le Cancer, Paris, France
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28
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Jurisch-Yaksi N, Yaksi E, Kizil C. Radial glia in the zebrafish brain: Functional, structural, and physiological comparison with the mammalian glia. Glia 2020; 68:2451-2470. [PMID: 32476207 DOI: 10.1002/glia.23849] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/07/2020] [Accepted: 05/13/2020] [Indexed: 02/01/2023]
Abstract
The neuroscience community has witnessed a tremendous expansion of glia research. Glial cells are now on center stage with leading roles in the development, maturation, and physiology of brain circuits. Over the course of evolution, glia have highly diversified and include the radial glia, astroglia or astrocytes, microglia, oligodendrocytes, and ependymal cells, each having dedicated functions in the brain. The zebrafish, a small teleost fish, is no exception to this and recent evidences point to evolutionarily conserved roles for glia in the development and physiology of its nervous system. Due to its small size, transparency, and genetic amenability, the zebrafish has become an increasingly prominent animal model for brain research. It has enabled the study of neural circuits from individual cells to entire brains, with a precision unmatched in other vertebrate models. Moreover, its high neurogenic and regenerative potential has attracted a lot of attention from the research community focusing on neural stem cells and neurodegenerative diseases. Hence, studies using zebrafish have the potential to provide fundamental insights about brain development and function, and also elucidate neural and molecular mechanisms of neurological diseases. We will discuss here recent discoveries on the diverse roles of radial glia and astroglia in neurogenesis, in modulating neuronal activity and in regulating brain homeostasis at the brain barriers. By comparing insights made in various animal models, particularly mammals and zebrafish, our goal is to highlight the similarities and differences in glia biology among species, which could set new paradigms relevant to humans.
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Affiliation(s)
- Nathalie Jurisch-Yaksi
- Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Neurology and Clinical Neurophysiology, St Olav University Hospital, Trondheim, Norway
| | - Emre Yaksi
- Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University of Science and Technology, Trondheim, Norway
| | - Caghan Kizil
- German Center for Neurodegenerative Diseases (DZNE), Helmholtz Association, Dresden, Germany.,Center for Molecular and Cellular Bioengineering (CMCB), TU Dresden, Dresden, Germany
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29
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Than-Trong E, Kiani B, Dray N, Ortica S, Simons B, Rulands S, Alunni A, Bally-Cuif L. Lineage hierarchies and stochasticity ensure the long-term maintenance of adult neural stem cells. SCIENCE ADVANCES 2020; 6:eaaz5424. [PMID: 32426477 PMCID: PMC7190328 DOI: 10.1126/sciadv.aaz5424] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 02/11/2020] [Indexed: 05/27/2023]
Abstract
The cellular basis and extent of neural stem cell (NSC) self-renewal in adult vertebrates, and their heterogeneity, remain controversial. To explore the functional behavior and dynamics of individual NSCs, we combined genetic lineage tracing, quantitative clonal analysis, intravital imaging, and global population assessments in the adult zebrafish telencephalon. Our results are compatible with a model where adult neurogenesis is organized in a hierarchy in which a subpopulation of deeply quiescent reservoir NSCs with long-term self-renewal potential generate, through asymmetric divisions, a pool of operational NSCs activating more frequently and taking stochastic fates biased toward neuronal differentiation. Our data further suggest the existence of an additional, upstream, progenitor population that supports the continuous generation of new reservoir NSCs, thus contributing to their overall expansion. Hence, we propose that the dynamics of vertebrate neurogenesis relies on a hierarchical organization where growth, self-renewal, and neurogenic functions are segregated between different NSC types.
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Affiliation(s)
- Emmanuel Than-Trong
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR3738, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Paris 75015, France
- Université Paris-Saclay, Ecole Doctorale Biosigne, Le Kremlin-Bicêtre, France
| | - Bahareh Kiani
- Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38, 01187 Dresden, Germany
| | - Nicolas Dray
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR3738, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Paris 75015, France
| | - Sara Ortica
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR3738, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Paris 75015, France
| | - Benjamin Simons
- Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Cambridge, UK
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge UK
- Wellcome Trust/Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge UK
| | - Steffen Rulands
- Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38, 01187 Dresden, Germany
- Center for Systems Biology Dresden, Pfotenhauer Str. 108, 01307 Dresden, Germany
| | - Alessandro Alunni
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR3738, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Paris 75015, France
| | - Laure Bally-Cuif
- Zebrafish Neurogenetics Unit, Institut Pasteur, UMR3738, CNRS, Team supported by the Ligue Nationale Contre le Cancer, Paris 75015, France
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30
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Pushchina EV, Zharikova EI, Varaksin AA, Prudnikov IM, Tsyvkin VN. Proliferation, Adult Neuronal Stem Cells and Cells Migration in Pallium during Constitutive Neurogenesis and after Traumatic Injury of Telencephalon of Juvenile Masu Salmon, Oncorhynchus masou. Brain Sci 2020; 10:brainsci10040222. [PMID: 32276413 PMCID: PMC7226367 DOI: 10.3390/brainsci10040222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/31/2020] [Accepted: 04/06/2020] [Indexed: 12/11/2022] Open
Abstract
A study of the lateral pallium in zebrafish and the visual tectum of the medaka revealed a population of adult neuroepithelial (NE) cells supported from the early stage of development to various postembryonic stages of ontogenesis. These data emphasize the importance of non-radial glial stem cells in the neurogenesis of adult animals, in particular fish. However, the distribution, cell cycle features, and molecular markers of NE cells and glial progenitors in fish are still poorly understood at the postembryonic stages of ontogenesis. Fetalization predominates in the ontogenetic development of salmon fish, which is associated with a delay in development and preservation of the features of the embryonic structure of the brain during the first year of life. In the present work, we studied the features of proliferation and the migration of neuronal precursors in the pallial proliferative zone of juvenile Oncorhynchus masou. The aim of the study is a comparative analysis of the distribution of glial-type aNSCs markers, such as vimentin and glial fibrillar acid protein GFAP, as well as the proliferation marker BrdU and migratory neuronal precursor doublecortin, in the pallial zone of the intact telencephalon in juvenile O. masou normal and after mechanical injury. The immunohistochemical IHC labeling with antibodies to vimentin, GFAP and doublecortin in the pallium of intact fish revealed single, small, round and oval immunopositive cells, that correspond to a persistent pool of neuronal and/or glial progenitors. After the injury, heterogeneous cell clusters, radial glia processes, single and small intensely labeled GFAP+ cells in the parenchyma of Dd and lateral part of pallium (Dl) appeared, corresponding to reactive neurogenic niches containing glial aNSCs. A multifold increase in the pool of Vim+ neuronal precursor cells (NPCs) resulting from the injury was observed. Vim+ cells of the neuroepithelial type in Dd and Dm and cells of the glial type were identified in Dl after the injury. Doublecortine (Dc) immunolabeling after the injury revealed the radial migration of neuroblasts into Dm from the neurogenic zone of the pallium. The appearance of intensely labeled Dc+ cells in the brain parenchyma might indicate the activation of resident aNSCs as a consequence of the traumatic process.
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Affiliation(s)
- Evgeniya V. Pushchina
- Zhirmunsky National Scientific Center of Marine Biology, Far East Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia; (E.I.Z.); (A.A.V.)
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, 01024 Kyiv, Ukraine; (I.M.P.); (V.N.T.)
- Correspondence: ; Tel.: +79-149680177
| | - Eva I. Zharikova
- Zhirmunsky National Scientific Center of Marine Biology, Far East Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia; (E.I.Z.); (A.A.V.)
| | - Anatoly A. Varaksin
- Zhirmunsky National Scientific Center of Marine Biology, Far East Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia; (E.I.Z.); (A.A.V.)
| | - Igor M. Prudnikov
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, 01024 Kyiv, Ukraine; (I.M.P.); (V.N.T.)
| | - Vladimir N. Tsyvkin
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, 01024 Kyiv, Ukraine; (I.M.P.); (V.N.T.)
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31
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Coolen M, Labusch M, Mannioui A, Bally-Cuif L. Mosaic Heterochrony in Neural Progenitors Sustains Accelerated Brain Growth and Neurogenesis in the Juvenile Killifish N. furzeri. Curr Biol 2020; 30:736-745.e4. [PMID: 32004451 PMCID: PMC7040570 DOI: 10.1016/j.cub.2019.12.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/16/2019] [Accepted: 12/13/2019] [Indexed: 12/19/2022]
Abstract
Although developmental mechanisms driving an increase in brain size during vertebrate evolution are actively studied, we know less about evolutionary strategies allowing accelerated brain growth. In zebrafish and other vertebrates studied to date, apical radial glia (RG) constitute the primary neurogenic progenitor population throughout life [1]; thus, RG activity is a determining factor of growth speed. Here, we ask whether enhanced RG activity is the mechanism selected to drive explosive growth, in adaptation to an ephemeral habitat. In post-hatching larvae of the turquoise killifish, which display drastic developmental acceleration, we show that the dorsal telencephalon (pallium) grows three times faster than in zebrafish. Rather than resulting from enhanced RG activity, we demonstrate that pallial growth is the product of a second type of progenitors (that we term NGPs for non-glial progenitors) that actively sustains neurogenesis and germinal zone self-renewal. Intriguingly, NGPs appear to retain, at larval stages, features of early embryonic progenitors. In parallel, RGs enter premature quiescence and express markers of astroglial function. Altogether, we propose that mosaic heterochrony within the neural progenitor population might permit rapid pallial growth by safeguarding both continued neurogenesis and astroglial function. Two types of apical progenitors exist in the pallium of the fast-growing killifish Killifish pallial RGs enter precociously into an adult-like quiescent state NGPs, both self-renewing and neurogenic, resemble early neuroepithelial progenitors Mosaic heterochrony among progenitors sustains rapid killifish pallial growth
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Affiliation(s)
- Marion Coolen
- Zebrafish Neurogenetics Unit, Developmental & Stem Cell Biology Department, Institut Pasteur, UMR3738, CNRS, 25 rue du Dr Roux, 75015 Paris, France.
| | - Miriam Labusch
- Zebrafish Neurogenetics Unit, Developmental & Stem Cell Biology Department, Institut Pasteur, UMR3738, CNRS, 25 rue du Dr Roux, 75015 Paris, France; Sorbonne Université, Collège doctoral, 75005 Paris, France
| | - Abdelkrim Mannioui
- Institut de Biologie Paris-Seine (IBPS), Aquatic Facility, Sorbonne Université, 7 quai Saint Bernard, 75005 Paris, France
| | - Laure Bally-Cuif
- Zebrafish Neurogenetics Unit, Developmental & Stem Cell Biology Department, Institut Pasteur, UMR3738, CNRS, 25 rue du Dr Roux, 75015 Paris, France.
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32
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Pushchina EV, Kapustyanov IA, Varaksin AA. Proliferation and Neuro- and Gliogenesis in Normal and Mechanically Damaged Mesencephalic Tegmentum in Juvenile Chum Salmon, Oncorhynchus keta. Russ J Dev Biol 2019. [DOI: 10.1134/s106236041902005x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Boulanger-Weill J, Sumbre G. Functional Integration of Newborn Neurons in the Zebrafish Optic Tectum. Front Cell Dev Biol 2019; 7:57. [PMID: 31058148 PMCID: PMC6477100 DOI: 10.3389/fcell.2019.00057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 03/29/2019] [Indexed: 11/15/2022] Open
Abstract
Neurogenesis persists during adulthood in restricted parts of the vertebrate brain. In the optic tectum (OT) of the zebrafish larva, newborn neurons are continuously added and contribute to visual information processing. Recent studies have started to describe the functional development and fate of newborn neurons in the OT. Like the mammalian brain, newborn neurons in the OT require sensory inputs for their integration into local networks and survival. Recent findings suggest that the functional development of newborn neurons requires both activity-dependent and hard-wired mechanisms for proper circuit integration. Here, we review these findings and argue that the study of neurogenesis in non-mammalian species will help elucidate the general mechanisms of circuit assembly following neurogenesis.
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Affiliation(s)
- Jonathan Boulanger-Weill
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA, United States
| | - Germán Sumbre
- Institut de Biologie de l’ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
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34
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Bloch S, Thomas M, Colin I, Galant S, Machado E, Affaticati P, Jenett A, Yamamoto K. Mesencephalic origin of the inferior lobe in zebrafish. BMC Biol 2019; 17:22. [PMID: 30849972 PMCID: PMC6407210 DOI: 10.1186/s12915-019-0631-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 01/22/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Although the overall brain organization is shared in vertebrates, there are significant differences within subregions among different groups, notably between Sarcopterygii (lobe-finned fish) and Actinopterygii (ray-finned fish). Recent comparative studies focusing on the ventricular morphology have revealed a large diversity of the hypothalamus. Here, we study the development of the inferior lobe (IL), a prominent structure forming a bump on the ventral surface of the teleost brain. Based on its position, IL has been thought to be part of the hypothalamus (therefore forebrain). RESULTS Taking advantage of genetic lineage-tracing techniques in zebrafish, we reveal that cells originating from her5-expressing progenitors in the midbrain-hindbrain boundary (MHB) participate in the formation of a large part of the IL. 3D visualization demonstrated how IL develops in relation to the ventricular system. We found that IL is constituted by two developmental components: the periventricular zone of hypothalamic origin and the external zone of mesencephalic origin. The mesencephalic external zone grows progressively until adulthood by adding new cells throughout development. CONCLUSION Our results disprove a homology between the IL and the mammalian lateral hypothalamus. We suggest that the IL is likely to be involved in multimodal sensory integration rather than feeding motivation. The teleost brain is not a simpler version of the mammalian brain, and our study highlights the evolutionary plasticity of the brain which gives rise to novel structures.
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Affiliation(s)
- Solal Bloch
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), CNRS UMR9197, Univ Paris Sud, Université Paris-Saclay, CNRS Bâtiment 5, Avenue de la Terrasse, 91190, Gif-sur-Yvette, France
| | - Manon Thomas
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), CNRS UMR9197, Univ Paris Sud, Université Paris-Saclay, CNRS Bâtiment 5, Avenue de la Terrasse, 91190, Gif-sur-Yvette, France
- Present address: Plateau de phénotypage TEFOR, LPGP-INRA UR1037, 35042, Rennes, France
| | - Ingrid Colin
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), CNRS UMR9197, Univ Paris Sud, Université Paris-Saclay, CNRS Bâtiment 5, Avenue de la Terrasse, 91190, Gif-sur-Yvette, France
| | - Sonya Galant
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), CNRS UMR9197, Univ Paris Sud, Université Paris-Saclay, CNRS Bâtiment 5, Avenue de la Terrasse, 91190, Gif-sur-Yvette, France
| | - Elodie Machado
- TEFOR Paris-Saclay, CNRS UMS2010, INRA UMS1451, Univ Paris Sud, Université Paris-Saclay, 91190, Gif-sur-Yvette, France
| | - Pierre Affaticati
- TEFOR Paris-Saclay, CNRS UMS2010, INRA UMS1451, Univ Paris Sud, Université Paris-Saclay, 91190, Gif-sur-Yvette, France
| | - Arnim Jenett
- TEFOR Paris-Saclay, CNRS UMS2010, INRA UMS1451, Univ Paris Sud, Université Paris-Saclay, 91190, Gif-sur-Yvette, France
| | - Kei Yamamoto
- Paris-Saclay Institute of Neuroscience (Neuro-PSI), CNRS UMR9197, Univ Paris Sud, Université Paris-Saclay, CNRS Bâtiment 5, Avenue de la Terrasse, 91190, Gif-sur-Yvette, France.
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Cook ZT, Brockway NL, Tobias ZJC, Pajarla J, Boardman IS, Ippolito H, Nkombo Nkoula S, Weissman TA. Combining near-infrared fluorescence with Brainbow to visualize expression of specific genes within a multicolor context. Mol Biol Cell 2019; 30:491-505. [PMID: 30586321 PMCID: PMC6594444 DOI: 10.1091/mbc.e18-06-0340] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 12/13/2018] [Accepted: 12/18/2018] [Indexed: 12/18/2022] Open
Abstract
Fluorescent proteins are a powerful experimental tool, allowing the visualization of gene expression and cellular behaviors in a variety of systems. Multicolor combinations of fluorescent proteins, such as Brainbow, have expanded the range of possible research questions and are useful for distinguishing and tracking cells. The addition of a separately driven color, however, would allow researchers to report expression of a manipulated gene within the multicolor context to investigate mechanistic effects. A far-red or near-infrared protein could be particularly suitable in this context, as these can be distinguished spectrally from Brainbow. We investigated five far-red/near-infrared proteins in zebrafish: TagRFP657, mCardinal, miRFP670, iRFP670, and mIFP. Our results show that both mCardinal and iRFP670 are useful fluorescent proteins for zebrafish expression. We also introduce a new transgenic zebrafish line that expresses Brainbow under the control of the neuroD promoter. We demonstrate that mCardinal can be used to track the expression of a manipulated bone morphogenetic protein receptor within the Brainbow context. The overlay of near-infrared fluorescence onto a Brainbow background defines a clear strategy for future research questions that aim to manipulate or track the effects of specific genes within a population of cells that are delineated using multicolor approaches.
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Affiliation(s)
- Zoe T. Cook
- Biology Department, Lewis and Clark College, Portland, OR 97219
| | | | | | - Joy Pajarla
- Biology Department, Lewis and Clark College, Portland, OR 97219
| | | | - Helen Ippolito
- Biology Department, Lewis and Clark College, Portland, OR 97219
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Pushchina EV, Varaksin AA. Neurolin expression in the optic nerve and immunoreactivity of Pax6-positive niches in the brain of rainbow trout ( Oncorhynchus mykiss) after unilateral eye injury. Neural Regen Res 2019; 14:156-171. [PMID: 30531090 PMCID: PMC6263006 DOI: 10.4103/1673-5374.243721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
In contrast to astrocytes in mammals, fish astrocytes promote axon regeneration after brain injury and actively participate in the regeneration process. Neurolin, a regeneration-associated, Zn8-labeled protein, is involved in the repair of damaged optic nerve in goldfish. At 1 week after unilateral eye injury, the expression of neurolin in the optic nerve and chiasm, and the expression of Pax6 that influences nervous system development in various brain regions in the rainbow trout (Oncorhynchus mykiss) were detected. Immunohistochemical staining revealed that the number of Zn8+ cells in the optic nerve head and intraorbital segment was obviously increased, and the increase in Zn8+ cells was also observed in the proximal and distal parts of injured optic nerve. This suggests that Zn8+ astrocytes participate in optic nerve regeneration. ELISA results revealed that Pax6 protein increased obviously at 1 week post-injury. Immunohistochemical staining revealed the appearance of Pax6+ neurogenic niches and a larger number of neural precursor cells, which are mainly from Pax6+ radial glia cells, in the nuclei of the diencephalon and optic tectum of rainbow trout (Oncorhynchus mykiss). Taken together, unilateral eye injury can cause optic nerve reaction, and the formation of neurogenic niches is likely a compensation phenomenon during the repair process of optic nerve injury in rainbow trout (Oncorhynchus mykiss).
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Affiliation(s)
- Evgeniya V Pushchina
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia; A.A. Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
| | - Anatoly A Varaksin
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
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37
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Nguyen PD, Currie PD. Guidelines and best practices in successfully using Zebrabow for lineage tracing multiple cells within tissues. Methods 2018; 150:63-67. [DOI: 10.1016/j.ymeth.2018.06.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/21/2018] [Accepted: 06/26/2018] [Indexed: 10/28/2022] Open
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Lindsey BW, Hall ZJ, Heuzé A, Joly JS, Tropepe V, Kaslin J. The role of neuro-epithelial-like and radial-glial stem and progenitor cells in development, plasticity, and repair. Prog Neurobiol 2018; 170:99-114. [PMID: 29902500 DOI: 10.1016/j.pneurobio.2018.06.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/20/2018] [Accepted: 06/07/2018] [Indexed: 12/14/2022]
Abstract
Neural stem and progenitor cells (NSPCs) are the primary source of new neurons in the brain and serve critical roles in tissue homeostasis and plasticity throughout life. Within the vertebrate brain, NSPCs are located within distinct neurogenic niches differing in their location, cellular composition, and proliferative behaviour. Heterogeneity in the NSPC population is hypothesized to reflect varying capacities for neurogenesis, plasticity and repair between different neurogenic zones. Since the discovery of adult neurogenesis, studies have predominantly focused on the behaviour and biological significance of adult NSPCs (aNSPCs) in rodents. However, compared to rodents, who show lifelong neurogenesis in only two restricted neurogenic niches, zebrafish exhibit constitutive neurogenesis across multiple stem cell niches that provide new neurons to every major brain division. Accordingly, zebrafish are a powerful model to probe the unique cellular and molecular profiles of NSPCs and investigate how these profiles govern tissue homeostasis and regenerative plasticity within distinct stem cell populations over time. Amongst the NSPC populations residing in the zebrafish central nervous system (CNS), proliferating radial-glia, quiescent radial-glia and neuro-epithelial-like cells comprise the majority. Here, we provide insight into the extent to which these distinct NSPC populations function and mature during development, respond to experience, and contribute to successful CNS regeneration in teleost fish. Together, our review brings to light the dynamic biological roles of these individual NSPC populations and showcases their diverse regenerative modes to achieve vertebrate brain repair later in life.
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Affiliation(s)
- Benjamin W Lindsey
- Department of Biology, Brain and Mind Research Institute, University of Ottawa, Ontario, Canada; Australian Regenerative Medicine Institute, Monash University Clayton Campus, Clayton, VIC, Australia.
| | - Zachary J Hall
- Department of Cell and Systems Biology, University of Toronto, Ontario, M5S 3G5, Canada.
| | - Aurélie Heuzé
- CASBAH INRA group, UMR9197 Neuro-PSI, CNRS, 91 198, Gif-sur-Yvette, France.
| | - Jean-Stéphane Joly
- CASBAH INRA group, UMR9197 Neuro-PSI, CNRS, 91 198, Gif-sur-Yvette, France.
| | - Vincent Tropepe
- Department of Cell and Systems Biology, University of Toronto, Ontario, M5S 3G5, Canada.
| | - Jan Kaslin
- Australian Regenerative Medicine Institute, Monash University Clayton Campus, Clayton, VIC, Australia.
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Than-Trong E, Ortica-Gatti S, Mella S, Nepal C, Alunni A, Bally-Cuif L. Neural stem cell quiescence and stemness are molecularly distinct outputs of the Notch3 signalling cascade in the vertebrate adult brain. Development 2018; 145:dev161034. [PMID: 29695612 PMCID: PMC6001379 DOI: 10.1242/dev.161034] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 04/05/2018] [Indexed: 01/10/2023]
Abstract
Neural stem cells (NSCs) in the adult vertebrate brain are found in a quiescent state and can preserve long-lasting progenitor potential (stemness). Whether and how these two properties are linked, and to what extent they can be independently controlled by NSC maintenance pathways, is unresolved. We have previously identified Notch3 signalling as a major quiescence-promoting pathway in adult NSCs of the zebrafish pallium. We now show that Notch3 also controls NSC stemness. Using parallel transcriptomic characterizations of notch3 mutant NSCs and adult NSC physiological states, we demonstrate that a set of potentially direct Notch3 target genes distinguishes quiescence and stemness control. As a proof of principle, we focus on one 'stemness' target, encoding the bHLH transcription factor Hey1, that has not yet been analysed in adult NSCs. We show that abrogation of Hey1 function in adult pallial NSCs in vivo, including quiescent NSCs, leads to their differentiation without affecting their proliferation state. These results demonstrate that quiescence and stemness are molecularly distinct outputs of Notch3 signalling, and identify Hey1 as a major Notch3 effector controlling NSC stemness in the vertebrate adult brain.
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Affiliation(s)
- Emmanuel Than-Trong
- Institut Pasteur, Unit Zebrafish Neurogenetics, Department of Developmental & Stem Cell Biology, 25 rue du Dr Roux, 75015 Paris, France
- CNRS, UMR3738, 25 rue du Dr Roux, 75015 Paris, France
| | - Sara Ortica-Gatti
- Institut Pasteur, Unit Zebrafish Neurogenetics, Department of Developmental & Stem Cell Biology, 25 rue du Dr Roux, 75015 Paris, France
- CNRS, UMR3738, 25 rue du Dr Roux, 75015 Paris, France
| | - Sébastien Mella
- CNRS, UMR3738, 25 rue du Dr Roux, 75015 Paris, France
- Institut Pasteur, Unit Stem Cells and Development, Department of Developmental & Stem Cell Biology, 25 rue du Dr Roux, 75015 Paris, France
| | - Chirag Nepal
- Biotech Research and Innovation Centre, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Alessandro Alunni
- Institut Pasteur, Unit Zebrafish Neurogenetics, Department of Developmental & Stem Cell Biology, 25 rue du Dr Roux, 75015 Paris, France
- CNRS, UMR3738, 25 rue du Dr Roux, 75015 Paris, France
| | - Laure Bally-Cuif
- Institut Pasteur, Unit Zebrafish Neurogenetics, Department of Developmental & Stem Cell Biology, 25 rue du Dr Roux, 75015 Paris, France
- CNRS, UMR3738, 25 rue du Dr Roux, 75015 Paris, France
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40
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Carney TJ, Mosimann C. Switch and Trace: Recombinase Genetics in Zebrafish. Trends Genet 2018; 34:362-378. [PMID: 29429760 DOI: 10.1016/j.tig.2018.01.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/04/2018] [Accepted: 01/08/2018] [Indexed: 01/04/2023]
Abstract
Transgenic approaches are instrumental for labeling and manipulating cells and cellular machineries in vivo. Transgenes have traditionally been static entities that remained unaltered following genome integration, limiting their versatility. The development of DNA recombinase-based methods to modify, excise, or rearrange transgene cassettes has introduced versatile control of transgene activity and function. In particular, recombinase-controlled transgenes enable regulation of exogenous gene expression, conditional mutagenesis, and genetic lineage tracing. In zebrafish, transgenesis-based recombinase genetics using Cre/lox, Flp/FRT, and ΦC31 are increasingly applied to study development and homeostasis, and to generate disease models. Intersected with the versatile imaging capacity of the zebrafish model and recent breakthroughs in genome editing, we review and discuss past, current, and potential future approaches and resources for recombinase-based techniques in zebrafish.
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Affiliation(s)
- Tom J Carney
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A*STAR), Singapore.
| | - Christian Mosimann
- Institute of Molecular Life Sciences, University of Zürich, Zürich, Switzerland.
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41
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Carreño Gutiérrez H, Vacca I, Pons AI, Norton WHJ. Automatic quantification of juvenile zebrafish aggression. J Neurosci Methods 2017; 296:23-31. [PMID: 29274793 DOI: 10.1016/j.jneumeth.2017.12.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/12/2017] [Accepted: 12/20/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Although aggression is a common symptom of psychiatric disorders the drugs available to treat it are non-specific and can have unwanted side effects. The zebrafish is an ideal model for aggression research. Zebrafish are small, amenable to genetic and pharmacological manipulation, and agonistic behaviour can be measured reliably. NEW METHOD In this study we have established a novel setup to automatically quantify aggression and locomotion in one-month old juvenile zebrafish, a stage at which fish exhibit adult-like behaviour but are small so that one camera can film several animals. RESULTS We have validated our novel software by comparison to manual quantification of behaviour, characterised the aggression of one-month old fish, and demonstrated that we can detect alterations to aggression caused by mutation or drug application. COMPARISON WITH OTHER METHODS The ability to record up to 12 juvenile fish allows us to speed up and standardise data acquisition compared to studies of single fish. CONCLUSIONS This setup appears to be suitable to screen for drugs that decrease zebrafish aggression as a first step toward developing novel treatments for this behaviour.
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Affiliation(s)
- Héctor Carreño Gutiérrez
- Department of Neuroscience, Psychology and Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK
| | - Irene Vacca
- Department of Neuroscience, Psychology and Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK
| | - Anna Inguanzo Pons
- Department of Neuroscience, Psychology and Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK
| | - William H J Norton
- Department of Neuroscience, Psychology and Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK.
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Katz S, Cussigh D, Urbán N, Blomfield I, Guillemot F, Bally-Cuif L, Coolen M. A Nuclear Role for miR-9 and Argonaute Proteins in Balancing Quiescent and Activated Neural Stem Cell States. Cell Rep 2017; 17:1383-1398. [PMID: 27783951 PMCID: PMC5098119 DOI: 10.1016/j.celrep.2016.09.088] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/07/2016] [Accepted: 09/26/2016] [Indexed: 01/08/2023] Open
Abstract
Throughout life, adult neural stem cells (NSCs) produce new neurons and glia that contribute to crucial brain functions. Quiescence is an essential protective feature of adult NSCs; however, the establishment and maintenance of this state remain poorly understood. We demonstrate that in the adult zebrafish pallium, the brain-enriched miR-9 is expressed exclusively in a subset of quiescent NSCs, highlighting a heterogeneity within these cells, and is necessary to maintain NSC quiescence. Strikingly, miR-9, along with Argonaute proteins (Agos), is localized to the nucleus of quiescent NSCs, and manipulating their nuclear/cytoplasmic ratio impacts quiescence. Mechanistically, miR-9 permits efficient Notch signaling to promote quiescence, and we identify the RISC protein TNRC6 as a mediator of miR-9/Agos nuclear localization in vivo. We propose a conserved non-canonical role for nuclear miR-9/Agos in controlling the balance between NSC quiescence and activation, a key step in maintaining adult germinal pools.
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Affiliation(s)
- Shauna Katz
- Zebrafish Neurogenetics Group, Paris-Saclay Institute of Neuroscience (Neuro-PSI), UMR 9197, CNRS-University Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Delphine Cussigh
- Zebrafish Neurogenetics Group, Paris-Saclay Institute of Neuroscience (Neuro-PSI), UMR 9197, CNRS-University Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Department of Developmental and Stem Cell Biology, Institut Pasteur and CNRS UMR 3738, 25 rue du Dr Roux, 75015 Paris, France
| | - Noelia Urbán
- Mill Hill Laboratory, The Francis Crick Institute, The Ridgeway, Mill Hill, London NW7 1AA, UK
| | - Isabelle Blomfield
- Mill Hill Laboratory, The Francis Crick Institute, The Ridgeway, Mill Hill, London NW7 1AA, UK
| | - François Guillemot
- Mill Hill Laboratory, The Francis Crick Institute, The Ridgeway, Mill Hill, London NW7 1AA, UK
| | - Laure Bally-Cuif
- Zebrafish Neurogenetics Group, Paris-Saclay Institute of Neuroscience (Neuro-PSI), UMR 9197, CNRS-University Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Department of Developmental and Stem Cell Biology, Institut Pasteur and CNRS UMR 3738, 25 rue du Dr Roux, 75015 Paris, France.
| | - Marion Coolen
- Zebrafish Neurogenetics Group, Paris-Saclay Institute of Neuroscience (Neuro-PSI), UMR 9197, CNRS-University Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Department of Developmental and Stem Cell Biology, Institut Pasteur and CNRS UMR 3738, 25 rue du Dr Roux, 75015 Paris, France.
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Furlan G, Cuccioli V, Vuillemin N, Dirian L, Muntasell AJ, Coolen M, Dray N, Bedu S, Houart C, Beaurepaire E, Foucher I, Bally-Cuif L. Life-Long Neurogenic Activity of Individual Neural Stem Cells and Continuous Growth Establish an Outside-In Architecture in the Teleost Pallium. Curr Biol 2017; 27:3288-3301.e3. [PMID: 29107546 PMCID: PMC5678050 DOI: 10.1016/j.cub.2017.09.052] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 08/14/2017] [Accepted: 09/25/2017] [Indexed: 01/08/2023]
Abstract
Spatiotemporal variations of neurogenesis are thought to account for the evolution of brain shape. In the dorsal telencephalon (pallium) of vertebrates, it remains unresolved which ancestral neurogenesis mode prefigures the highly divergent cytoarchitectures that are seen in extant species. To gain insight into this question, we developed genetic tools to generate here the first 4-dimensional (3D + birthdating time) map of pallium construction in the adult teleost zebrafish. Using a Tet-On-based genetic birthdating strategy, we identify a “sequential stacking” construction mode where neurons derived from the zebrafish pallial germinal zone arrange in outside-in, age-related layers from a central core generated during embryogenesis. We obtained no evidence for overt radial or tangential neuronal migrations. Cre-lox-mediated tracing, which included following Brainbow clones, further demonstrates that this process is sustained by the persistent neurogenic activity of individual pallial neural stem cells (NSCs) from embryo to adult. Together, these data demonstrate that the spatiotemporal control of NSC activity is an important driver of the macroarchitecture of the zebrafish adult pallium. This simple mode of pallium construction shares distinct traits with pallial genesis in mammals and non-mammalian amniotes such as birds or reptiles, suggesting that it may exemplify the basal layout from which vertebrate pallial architectures were elaborated. Neurons of the teleost pallium are arranged in concentric age-dependent layers Neurons of the central pallial domain, Dc, are born during embryogenesis Most pallial neurons are generated from ventricular her4-positive radial glia The majority of individual pallial radial glia are neurogenic throughout life
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Affiliation(s)
- Giacomo Furlan
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Valentina Cuccioli
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Unit Zebrafish Neurogenetics, Developmental and Stem Cell Biology Department, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France; CNRS UMR 3738, 25 Rue du Dr. Roux, 75015 Paris, France
| | - Nelly Vuillemin
- Laboratory for Optics and Biosciences, École Polytechnique, CNRS UMR 7645 and INSERM U1182, 91128 Palaiseau, France
| | - Lara Dirian
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Anna Janue Muntasell
- Centre for Developmental Neurobiology and MRC Centre for Neurodevelopmental Disorders, IoPPN, King's College London, London SE1 1UL, UK
| | - Marion Coolen
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Unit Zebrafish Neurogenetics, Developmental and Stem Cell Biology Department, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France; CNRS UMR 3738, 25 Rue du Dr. Roux, 75015 Paris, France
| | - Nicolas Dray
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Unit Zebrafish Neurogenetics, Developmental and Stem Cell Biology Department, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France; CNRS UMR 3738, 25 Rue du Dr. Roux, 75015 Paris, France
| | - Sébastien Bedu
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Unit Zebrafish Neurogenetics, Developmental and Stem Cell Biology Department, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France; CNRS UMR 3738, 25 Rue du Dr. Roux, 75015 Paris, France
| | - Corinne Houart
- Centre for Developmental Neurobiology and MRC Centre for Neurodevelopmental Disorders, IoPPN, King's College London, London SE1 1UL, UK
| | - Emmanuel Beaurepaire
- Laboratory for Optics and Biosciences, École Polytechnique, CNRS UMR 7645 and INSERM U1182, 91128 Palaiseau, France
| | - Isabelle Foucher
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Unit Zebrafish Neurogenetics, Developmental and Stem Cell Biology Department, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France; CNRS UMR 3738, 25 Rue du Dr. Roux, 75015 Paris, France.
| | - Laure Bally-Cuif
- Team Zebrafish Neurogenetics, Paris-Saclay Institute for Neuroscience (Neuro-PSI), UMR 9197, CNRS-Université Paris-Sud, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France; Unit Zebrafish Neurogenetics, Developmental and Stem Cell Biology Department, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France; CNRS UMR 3738, 25 Rue du Dr. Roux, 75015 Paris, France.
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Pushchina EV, Zharikova EI, Varaksin AA. Persistent and reparative neurogenesis in the juvenile masu salmon Oncorhynchus masou telencephalon after mechanical injury. Russ J Dev Biol 2017. [DOI: 10.1134/s106236041705006x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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45
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Yamamoto K, Bloch S, Vernier P. New perspective on the regionalization of the anterior forebrain in Osteichthyes. Dev Growth Differ 2017; 59:175-187. [PMID: 28470718 DOI: 10.1111/dgd.12348] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 02/26/2017] [Accepted: 03/13/2017] [Indexed: 01/19/2023]
Abstract
In the current model, the most anterior part of the forebrain (secondary prosencephalon) is subdivided into the telencephalon dorsally and the hypothalamus ventrally. Our recent study identified a new morphogenetic unit named the optic recess region (ORR) between the telencephalon and the hypothalamus. This modification of the forebrain regionalization based on the ventricular organization resolved some previously unexplained inconsistency about regional identification in different vertebrate groups. The ventricular-based comparison also revealed a large diversity within the subregions (notably in the hypothalamus and telencephalon) among different vertebrate groups. In tetrapods there is only one hypothalamic recess, while in teleosts there are two recesses. Most notably, the mammalian and teleost hypothalami are two extreme cases: the former has lost the cerebrospinal fluid-contacting (CSF-c) neurons, while the latter has increased them. Thus, one to one homology of hypothalamic subregions in mammals and teleosts requires careful verification. In the telencephalon, different developmental processes between Sarcopterygii (lobe-finned fish) and Actinopterygii (ray-finned fish) have already been described: the evagination and the eversion. Although pallial homology has been long discussed based on the assumption that the medial-lateral organization of the pallium in Actinopterygii is inverted from that in Sarcopterygii, recent developmental data contradict this assumption. Current models of the brain organization are largely based on a mammalian-centric point of view, but our comparative analyses shed new light on the brain organization of Osteichthyes.
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Affiliation(s)
- Kei Yamamoto
- Paris-Saclay Institute of Neuroscience (UMR 9197), CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
| | - Solal Bloch
- Paris-Saclay Institute of Neuroscience (UMR 9197), CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
| | - Philippe Vernier
- Paris-Saclay Institute of Neuroscience (UMR 9197), CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
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46
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Identification of accessory olfactory system and medial amygdala in the zebrafish. Sci Rep 2017; 7:44295. [PMID: 28290515 PMCID: PMC5349599 DOI: 10.1038/srep44295] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/06/2017] [Indexed: 01/02/2023] Open
Abstract
Zebrafish larvae imprint on visual and olfactory cues of their kin on day 5 and 6 postfertilization, respectively. Only imprinted (but not non-imprinted) larvae show strongly activated crypt (and some microvillous) cells demonstrated by pERK levels after subsequent exposure to kin odor. Here, we investigate the olfactory bulb of zebrafish larvae for activated neurons located at the sole glomerulus mdG2 which receives crypt cell input. Imprinted larvae show a significantly increased activation of olfactory bulb cells compared to non-imprinted larvae after exposure to kin odor. Surprisingly, pERK activated Orthopedia-positive cell numbers in the intermediate ventral telencephalic nucleus were higher in non-imprinted, kin odor stimulated larvae compared to control and to kin-odor stimulated imprinted larvae and control. Moreover, DiI tracing experiments in adult zebrafish show a neuronal circuit from crypt/microvillous olfactory sensory neurons via dorsomedial olfactory bulb and intermediate ventral telencephalic nucleus (thus, arguably the teleostean medial amygdala) to tuberal hypothalamus, demonstrating for the first time an accessory olfactory system in teleosts.
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47
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Dambroise E, Simion M, Bourquard T, Bouffard S, Rizzi B, Jaszczyszyn Y, Bourge M, Affaticati P, Heuzé A, Jouralet J, Edouard J, Brown S, Thermes C, Poupon A, Reiter E, Sohm F, Bourrat F, Joly JS. Postembryonic Fish Brain Proliferation Zones Exhibit Neuroepithelial-Type Gene Expression Profile. Stem Cells 2017; 35:1505-1518. [PMID: 28181357 DOI: 10.1002/stem.2588] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 01/04/2023]
Abstract
In mammals, neuroepithelial cells play an essential role in embryonic neurogenesis, whereas glial stem cells are the principal source of neurons at postembryonic stages. By contrast, neuroepithelial-like stem/progenitor (NE) cells have been shown to be present throughout life in teleosts. We used three-dimensional (3D) reconstructions of cleared transgenic wdr12:GFP medaka brains to demonstrate that this cell type is widespread in juvenile and to identify new regions containing NE cells. We established the gene expression profile of optic tectum (OT) NE cells by cell sorting followed by RNA-seq. Our results demonstrate that most OT NE cells are indeed active stem cells and that some of them exhibit long G2 phases. We identified several novel pathways (e.g., DNA repair pathways) potentially involved in NE cell homeostasis. In situ hybridization studies showed that all NE populations in the postembryonic medaka brain have a similar molecular signature. Our findings highlight the importance of NE progenitors in medaka and improve our understanding of NE-cell biology. These cells are potentially useful not only for neural stem cell studies but also for improving the characterization of neurodevelopmental diseases, such as microcephaly. Stem Cells 2017;35:1505-1518.
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Affiliation(s)
- Emilie Dambroise
- INRA CASBAH Group, Neuro-PSI, UMR 9197, CNRS, Gif-sur-Yvette, France
| | - Matthieu Simion
- INRA CASBAH Group, Neuro-PSI, UMR 9197, CNRS, Gif-sur-Yvette, France
| | | | | | - Barbara Rizzi
- Tefor Core Facility, TEFOR Infrastructure, Neuro-PSI, CNRS, Gif-sur-Yvette, France
| | | | | | - Pierre Affaticati
- Tefor Core Facility, TEFOR Infrastructure, Neuro-PSI, CNRS, Gif-sur-Yvette, France
| | - Aurélie Heuzé
- INRA CASBAH Group, Neuro-PSI, UMR 9197, CNRS, Gif-sur-Yvette, France
| | - Julia Jouralet
- Plateforme BM-Gif, Imagif, UMR 9198, CNRS, Gif-sur-Yvette, France
| | - Joanne Edouard
- UMS AMAGEN CNRS, INRA, Université Paris-Saclay, Gif-sur-Yvette, France
| | | | | | | | | | - Frédéric Sohm
- UMS AMAGEN CNRS, INRA, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Franck Bourrat
- INRA CASBAH Group, Neuro-PSI, UMR 9197, CNRS, Gif-sur-Yvette, France
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48
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Temporal variations in early developmental decisions: an engine of forebrain evolution. Curr Opin Neurobiol 2017; 42:152-159. [PMID: 28092740 DOI: 10.1016/j.conb.2016.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/19/2016] [Accepted: 12/22/2016] [Indexed: 11/21/2022]
Abstract
Tight control of developmental timing is pivotal to many major processes in developmental biology, such as patterning, fate specification, cell cycle dynamics, cell migration and connectivity. Temporal change in these ontogenetic sequences is known as heterochrony, a major force in the evolution of body plans and organogenesis. In the last 5 years, studies in fish and rodents indicate that heterochrony in signaling during early development generates diversity in forebrain size and complexity. Here, we summarize these findings and propose that, additionally to spatio-temporal tuning of neurogenesis, temporal and quantitative modulation of signaling events drive pivotal changes in shape, size and complexity of the forebrain across evolution, participating to the generation of diversity in animal behavior and emergence of cognition.
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Galant S, Furlan G, Coolen M, Dirian L, Foucher I, Bally-Cuif L. Embryonic origin and lineage hierarchies of the neural progenitor subtypes building the zebrafish adult midbrain. Dev Biol 2016; 420:120-135. [PMID: 27693369 PMCID: PMC5156517 DOI: 10.1016/j.ydbio.2016.09.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/31/2016] [Accepted: 09/26/2016] [Indexed: 01/11/2023]
Abstract
Neurogenesis in the post-embryonic vertebrate brain varies in extent and efficiency between species and brain territories. Distinct neurogenesis modes may account for this diversity, and several neural progenitor subtypes, radial glial cells (RG) and neuroepithelial progenitors (NE), have been identified in the adult zebrafish brain. The neurogenic sequences issued from these progenitors, and their contribution to brain construction, remain incompletely understood. Here we use genetic tracing techniques based on conditional Cre recombination and Tet-On neuronal birthdating to unravel the neurogenic sequence operating from NE progenitors in the zebrafish post-embryonic optic tectum. We reveal that a subpopulation of her5-positive NE cells of the posterior midbrain layer stands at the top of a neurogenic hierarchy involving, in order, the amplification pool of the tectal proliferation zone (TPZ), followed by her4-positive RG cells with transient neurogenic activity. We further demonstrate that the adult her5-positive NE pool is issued in lineage from an identically located NE pool expressing the same gene in the embryonic neural tube. Finally, we show that these features are reminiscent of the neurogenic sequence and embryonic origin of the her9-positive progenitor NE pool involved in the construction of the lateral pallium at post-embryonic stages. Together, our results highlight the shared recruitment of an identical neurogenic strategy by two remote brain territories, where long-lasting NE pools serve both as a growth zone and as the life-long source of young neurogenic RG cells. Zebrafish post-embryonic tectal neurogenesis is driven by neuroepithelial progenitors. The neuroepithelial progenitor pool is long-lasting and expresses Her5 life long. Tectal radial glia originate from the her5-positive pool and are transiently neurogenic. The post-embryonic neurogenic sequences of the tectum and lateral pallium are similar.
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Affiliation(s)
- Sonya Galant
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Bldg 5, F-91198 Gif-sur-Yvette, France
| | - Giacomo Furlan
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Bldg 5, F-91198 Gif-sur-Yvette, France
| | - Marion Coolen
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Bldg 5, F-91198 Gif-sur-Yvette, France; Department of Developmental and Stem Cell Biology and CNRS UMR 3738, Institut Pasteur, 25 rue du Dr Roux, 75015 Paris, France
| | - Lara Dirian
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Bldg 5, F-91198 Gif-sur-Yvette, France
| | - Isabelle Foucher
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Bldg 5, F-91198 Gif-sur-Yvette, France; Department of Developmental and Stem Cell Biology and CNRS UMR 3738, Institut Pasteur, 25 rue du Dr Roux, 75015 Paris, France.
| | - Laure Bally-Cuif
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Bldg 5, F-91198 Gif-sur-Yvette, France; Department of Developmental and Stem Cell Biology and CNRS UMR 3738, Institut Pasteur, 25 rue du Dr Roux, 75015 Paris, France.
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Abstract
In all vertebrate species studied thus far, the adult central nervous system harbors neural stem cells that sustain constitutive neurogenesis, as well as latent neural progenitors that can be awakened in lesional contexts. In spite of this common theme, many species differ dramatically in their ability to recruit constitutive progenitors, to awaken latent progenitors, or to enhance or bias neural progenitor fate to achieve successful neuronal repair. This Review summarizes the striking similarities in the essential molecular and cellular properties of adult neural stem cells between different vertebrate species, both under physiological and reparative conditions. It also emphasizes the differences in the reparative process across evolution and how the study of non-mammalian models can provide insights into both basic neural stem cell properties and stimulatory cues shared between vertebrates, and subsequent neurogenic events, which are abortive under reparative conditions in mammals. Summary: This Review article provides a comparative view of neuronal repair across vertebrate species, with a particular focus on the molecular pathways that enable repair in some, but not all animals.
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Affiliation(s)
- Alessandro Alunni
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Université Paris-Saclay, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Building 5, Gif-sur-Yvette F-91198, France
| | - Laure Bally-Cuif
- Paris-Saclay Institute for Neuroscience, CNRS UMR9197 - Université Paris-Sud, Université Paris-Saclay, Team Zebrafish Neurogenetics, Avenue de la Terrasse, Building 5, Gif-sur-Yvette F-91198, France
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