1
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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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2
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Connell ML, Wu CC, Blount JR, Haimbaugh A, Kintzele EK, Banerjee D, Baker BB, Baker TR. Adult-Onset Transcriptomic Effects of Developmental Exposure to Benzene in Zebrafish ( Danio rerio): Evaluating a Volatile Organic Compound of Concern. Int J Mol Sci 2023; 24:16212. [PMID: 38003401 PMCID: PMC10671089 DOI: 10.3390/ijms242216212] [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: 09/23/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Urban environments are afflicted by mixtures of anthropogenic volatile organic compounds (VOCs). VOC sources that drive human exposure include vehicle exhaust, industrial emissions, and oil spillage. The highly volatile VOC benzene has been linked to adverse health outcomes. However, few studies have focused on the later-in-life effects of low-level benzene exposure during the susceptible window of early development. Transcriptomic responses during embryogenesis have potential long-term consequences at levels equal to or lower than 1 ppm, therefore justifying the analysis of adult zebrafish that were exposed during early development. Previously, we identified transcriptomic alteration following controlled VOC exposures to 0.1 or 1 ppm benzene during the first five days of embryogenesis using a zebrafish model. In this study, we evaluated the adult-onset transcriptomic responses to this low-level benzene embryogenesis exposure (n = 20/treatment). We identified key genes, including col1a2 and evi5b, that were differentially expressed in adult zebrafish in both concentrations. Some DEGs overlapped at the larval and adult stages, specifically nfkbiaa, mecr, and reep1. The observed transcriptomic results suggest dose- and sex-dependent changes, with the highest impact of benzene exposure to be on cancer outcomes, endocrine system disorders, reproductive success, neurodevelopment, neurological disease, and associated pathways. Due to molecular pathways being highly conserved between zebrafish and mammals, developmentally exposed adult zebrafish transcriptomics is an important endpoint for providing insight into the long term-effects of VOCs on human health and disease.
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Affiliation(s)
- Mackenzie L. Connell
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
| | - Chia-Chen Wu
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Hsinchu City 300093, Taiwan;
| | - Jessica R. Blount
- Institute of Environmental Health Sciences, Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA; (J.R.B.); (A.H.)
| | - Alex Haimbaugh
- Institute of Environmental Health Sciences, Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA; (J.R.B.); (A.H.)
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Emily K. Kintzele
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
| | - Dayita Banerjee
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
| | - Bridget B. Baker
- IFAS Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL 32611, USA;
| | - Tracie R. Baker
- Department of Global and Environmental Health, University of Florida, Gainesville, FL 32610, USA; (M.L.C.); (E.K.K.); (D.B.)
- Institute of Environmental Health Sciences, Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA; (J.R.B.); (A.H.)
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
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3
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Yasmin N, Collier AD, Abdulai AR, Karatayev O, Yu B, Fam M, Leibowitz SF. Role of Chemokine Cxcl12a in Mediating the Stimulatory Effects of Ethanol on Embryonic Development of Subpopulations of Hypocretin/Orexin Neurons and Their Projections. Cells 2023; 12:1399. [PMID: 37408233 PMCID: PMC10216682 DOI: 10.3390/cells12101399] [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: 03/23/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 07/07/2023] Open
Abstract
Studies in zebrafish and rats show that embryonic ethanol exposure at low-moderate concentrations stimulates hypothalamic neurons expressing hypocretin/orexin (Hcrt) that promote alcohol consumption, effects possibly involving the chemokine Cxcl12 and its receptor Cxcr4. Our recent studies in zebrafish of Hcrt neurons in the anterior hypothalamus (AH) demonstrate that ethanol exposure has anatomically specific effects on Hcrt subpopulations, increasing their number in the anterior AH (aAH) but not posterior AH (pAH), and causes the most anterior aAH neurons to become ectopically expressed further anterior in the preoptic area (POA). Using tools of genetic overexpression and knockdown, our goal here was to determine whether Cxcl12a has an important function in mediating the specific effects of ethanol on these Hcrt subpopulations and their projections. The results demonstrate that the overexpression of Cxcl12a has stimulatory effects similar to ethanol on the number of aAH and ectopic POA Hcrt neurons and the long anterior projections from ectopic POA neurons and posterior projections from pAH neurons. They also demonstrate that knockdown of Cxcl12a blocks these effects of ethanol on the Hcrt subpopulations and projections, providing evidence supporting a direct role of this specific chemokine in mediating ethanol's stimulatory effects on embryonic development of the Hcrt system.
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Affiliation(s)
| | | | | | | | | | | | - Sarah F. Leibowitz
- Laboratory of Behavioral Neurobiology, The Rockefeller University, New York, NY 10065, USA
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4
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Miranda-Negrón Y, García-Arrarás JE. Radial glia and radial glia-like cells: Their role in neurogenesis and regeneration. Front Neurosci 2022; 16:1006037. [PMID: 36466166 PMCID: PMC9708897 DOI: 10.3389/fnins.2022.1006037] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/21/2022] [Indexed: 01/25/2024] Open
Abstract
Radial glia is a cell type traditionally associated with the developing nervous system, particularly with the formation of cortical layers in the mammalian brain. Nonetheless, some of these cells, or closely related types, called radial glia-like cells are found in adult central nervous system structures, functioning as neurogenic progenitors in normal homeostatic maintenance and in response to injury. The heterogeneity of radial glia-like cells is nowadays being probed with molecular tools, primarily by the expression of specific genes that define cell types. Similar markers have identified radial glia-like cells in the nervous system of non-vertebrate organisms. In this review, we focus on adult radial glia-like cells in neurogenic processes during homeostasis and in response to injury. We highlight our results using a non-vertebrate model system, the echinoderm Holothuria glaberrima where we have described a radial glia-like cell that plays a prominent role in the regeneration of the holothurian central nervous system.
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Affiliation(s)
| | - José E. García-Arrarás
- Department of Biology, College of Natural Sciences, University of Puerto Rico, San Juan, Puerto Rico
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5
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Li H, Sun Y, Sun L. A Teleost CXCL10 Is Both an Immunoregulator and an Antimicrobial. Front Immunol 2022; 13:917697. [PMID: 35795684 PMCID: PMC9251016 DOI: 10.3389/fimmu.2022.917697] [Citation(s) in RCA: 4] [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: 04/11/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
Chemokines are a group of cytokines that play important roles in cell migration, inflammation, and immune defense. In this study, we identified a CXC chemokine, CXCL10, from Japanese flounder Paralichthys olivaceus (named PoCXCL10) and investigated its immune function. Structurally, PoCXCL10 possesses an N-terminal coil, three β-strands, and a C-terminal α-helix with cationic and amphipathic properties. PoCXCL10 expression occurred in multiple tissues and was upregulated by bacterial pathogens. Recombinant PoCXCL10 (rPoCXCL10) promoted the migration, cytokine expression, and phagocytosis of flounder peripheral blood leukocytes (PBLs). rPoCXCL10 bound to and inhibited the growth of a variety of common Gram-negative and Gram-positive fish pathogens. rPoCXCL10 killed the pathogens by causing bacterial membrane permeabilization and structure destruction. When introduced in vivo, rPoCXCL10 significantly inhibited bacterial dissemination in fish tissues. A peptide derived from the C-terminal α-helix exhibited bactericidal activity and competed with rPoCXCL10 for bacterial binding. Deletion of the α-helix affected the in vitro bactericidal activity but not the chemotaxis or in vivo antimicrobial activity of PoCXCL10. Together, these results indicate that PoCXCL10 exerts the role of both an immunoregulator and a bactericide/bacteriostatic via different structural domains. These findings provide new insights into the immune function and working mechanism of fish CXC chemokines.
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Affiliation(s)
- Huili Li
- Chinese Academy of Sciences (CAS) and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology; CAS Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yuanyuan Sun
- Chinese Academy of Sciences (CAS) and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology; CAS Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Li Sun
- Chinese Academy of Sciences (CAS) and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology; CAS Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Li Sun,
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6
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Single Cell/Nucleus Transcriptomics Comparison in Zebrafish and Humans Reveals Common and Distinct Molecular Responses to Alzheimer’s Disease. Cells 2022; 11:cells11111807. [PMID: 35681503 PMCID: PMC9180693 DOI: 10.3390/cells11111807] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 12/21/2022] Open
Abstract
Neurogenesis is significantly reduced in Alzheimer’s disease (AD) and is a potential therapeutic target. Contrary to humans, a zebrafish can regenerate its diseased brain, and thus is ideal for studying neurogenesis. To compare the AD-related molecular pathways between humans and zebrafish, we compared single cell or nuclear transcriptomic data from a zebrafish amyloid toxicity model and its controls (N = 12) with the datasets of two human adult brains (N = 10 and N = 48 (Microglia)), and one fetal brain (N = 10). Approximately 95.4% of the human and zebrafish cells co-clustered. Within each cell type, we identified differentially expressed genes (DEGs), enriched KEGG pathways, and gene ontology terms. We studied synergistic and non-synergistic DEGs to point at either common or uniquely altered mechanisms across species. Using the top DEGs, a high concordance in gene expression changes between species was observed in neuronal clusters. On the other hand, the molecular pathways affected by AD in zebrafish astroglia differed from humans in favor of the neurogenic pathways. The integration of zebrafish and human transcriptomes shows that the zebrafish can be used as a tool to study the cellular response to amyloid proteinopathies. Uniquely altered pathways in zebrafish could highlight the specific mechanisms underlying neurogenesis, which are absent in humans, and could serve as potential candidates for therapeutic developments.
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Cellular Mechanisms Participating in Brain Repair of Adult Zebrafish and Mammals after Injury. Cells 2021; 10:cells10020391. [PMID: 33672842 PMCID: PMC7917790 DOI: 10.3390/cells10020391] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/28/2021] [Accepted: 02/05/2021] [Indexed: 12/12/2022] Open
Abstract
Adult neurogenesis is an evolutionary conserved process occurring in all vertebrates. However, striking differences are observed between the taxa, considering the number of neurogenic niches, the neural stem cell (NSC) identity, and brain plasticity under constitutive and injury-induced conditions. Zebrafish has become a popular model for the investigation of the molecular and cellular mechanisms involved in adult neurogenesis. Compared to mammals, the adult zebrafish displays a high number of neurogenic niches distributed throughout the brain. Furthermore, it exhibits a strong regenerative capacity without scar formation or any obvious disabilities. In this review, we will first discuss the similarities and differences regarding (i) the distribution of neurogenic niches in the brain of adult zebrafish and mammals (mainly mouse) and (ii) the nature of the neural stem cells within the main telencephalic niches. In the second part, we will describe the cascade of cellular events occurring after telencephalic injury in zebrafish and mouse. Our study clearly shows that most early events happening right after the brain injury are shared between zebrafish and mouse including cell death, microglia, and oligodendrocyte recruitment, as well as injury-induced neurogenesis. In mammals, one of the consequences following an injury is the formation of a glial scar that is persistent. This is not the case in zebrafish, which may be one of the main reasons that zebrafish display a higher regenerative capacity.
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Campos-Sánchez JC, Esteban MÁ. Review of inflammation in fish and value of the zebrafish model. JOURNAL OF FISH DISEASES 2021; 44:123-139. [PMID: 33236349 DOI: 10.1111/jfd.13310] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 05/28/2023]
Abstract
Inflammation is a crucial step in the development of chronic diseases in humans. Understanding the inflammation environment and its intrinsic mechanisms when it is produced by harmful stimuli may be a key element in the development of human disease diagnosis. In recent decades, zebrafish (Danio rerio) have been widely used in research, due to their exceptional characteristics, as a model of various human diseases. Interestingly, the mediators released during the inflammatory response of both the immune system and nervous system, after its integration in the hypothalamus, could also facilitate the detection of injury through the register of behavioural changes in the fish. Although there are many studies that give well-defined information separately on such elements as the recruitment of cells, the release of pro- and anti-inflammatory mediators or the type of neurotransmitters released against different triggers, to the best of our knowledge there are no reviews that put all this knowledge together. In the present review, the main available information on inflammation in zebrafish is presented in order to facilitate knowledge about this important process of innate immunity, as well as the stress responses and behavioural changes derived from it.
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Affiliation(s)
- Jose Carlos Campos-Sánchez
- Department of Cell Biology and Histology, Faculty of Biology, Immunobiology for Aquaculture Group, University of Murcia, Murcia, Spain
| | - María Ángeles Esteban
- Department of Cell Biology and Histology, Faculty of Biology, Immunobiology for Aquaculture Group, University of Murcia, Murcia, Spain
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9
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Diotel N, Lübke L, Strähle U, Rastegar S. Common and Distinct Features of Adult Neurogenesis and Regeneration in the Telencephalon of Zebrafish and Mammals. Front Neurosci 2020; 14:568930. [PMID: 33071740 PMCID: PMC7538694 DOI: 10.3389/fnins.2020.568930] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022] Open
Abstract
In contrast to mammals, the adult zebrafish brain shows neurogenic activity in a multitude of niches present in almost all brain subdivisions. Irrespectively, constitutive neurogenesis in the adult zebrafish and mouse telencephalon share many similarities at the cellular and molecular level. However, upon injury during tissue repair, the situation is entirely different. In zebrafish, inflammation caused by traumatic brain injury or by induced neurodegeneration initiates specific and distinct neurogenic programs that, in combination with signaling pathways implicated in constitutive neurogenesis, quickly, and efficiently overcome the loss of neurons. In the mouse brain, injury-induced inflammation promotes gliosis leading to glial scar formation and inhibition of regeneration. A better understanding of the regenerative mechanisms occurring in the zebrafish brain could help to develop new therapies to combat the debilitating consequences of brain injury, stroke, and neurodegeneration. The aim of this review is to compare the properties of neural progenitors and the signaling pathways, which control adult neurogenesis and regeneration in the zebrafish and mammalian telencephalon.
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Affiliation(s)
- Nicolas Diotel
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis, France
| | - Luisa Lübke
- Institute of Biological and Chemical Systems-Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Uwe Strähle
- Institute of Biological and Chemical Systems-Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Sepand Rastegar
- Institute of Biological and Chemical Systems-Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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10
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Ghaddar B, Veeren B, Rondeau P, Bringart M, Lefebvre d'Hellencourt C, Meilhac O, Bascands JL, Diotel N. Impaired brain homeostasis and neurogenesis in diet-induced overweight zebrafish: a preventive role from A. borbonica extract. Sci Rep 2020; 10:14496. [PMID: 32879342 PMCID: PMC7468118 DOI: 10.1038/s41598-020-71402-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
Overweight and obesity are worldwide health concerns leading to many physiological disorders. Recent data highlighted their deleterious effects on brain homeostasis and plasticity, but the mechanisms underlying such disruptions are still not well understood. In this study, we developed and characterized a fast and reliable diet-induced overweight (DIO) model in zebrafish, for (1) studying the effects of overfeeding on brain homeostasis and for (2) testing different preventive and/or therapeutic strategies. By overfeeding zebrafish for 4 weeks, we report the disruption of many metabolic parameters reproducing human overweight features including increased body weight, body mass index, fasting blood glucose levels and liver steatosis. Furthermore, DIO fish displayed blood–brain barrier leakage, cerebral oxidative stress, neuroinflammation and decreased neurogenesis. Finally, we investigated the preventive beneficial effects of A. borbonica, an endogenous plant from Reunion Island. Overnight treatment with A. borbonica aqueous extract during the 4 weeks of overfeeding limited some detrimental central effects of DIO. In conclusion, we established a relevant DIO model in zebrafish demonstrating that overfeeding impairs peripheral and central homeostasis. This work also highlights the preventive protective effects of A. borbonica aqueous extracts in DIO, and opens a way to easily screen drugs aiming at limiting overweight and associated neurological disorders.
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Affiliation(s)
- Batoul Ghaddar
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France
| | - Bryan Veeren
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France
| | - Philippe Rondeau
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France
| | - Matthieu Bringart
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France
| | - Christian Lefebvre d'Hellencourt
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France
| | - Olivier Meilhac
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France.,CHU de La Réunion, Saint-Denis, France
| | - Jean-Loup Bascands
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France
| | - Nicolas Diotel
- INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, Saint-Denis de La Réunion, France.
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Cosacak MI, Bhattarai P, Reinhardt S, Petzold A, Dahl A, Zhang Y, Kizil C. Single-Cell Transcriptomics Analyses of Neural Stem Cell Heterogeneity and Contextual Plasticity in a Zebrafish Brain Model of Amyloid Toxicity. Cell Rep 2019; 27:1307-1318.e3. [DOI: 10.1016/j.celrep.2019.03.090] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 02/21/2019] [Accepted: 03/25/2019] [Indexed: 01/06/2023] Open
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12
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Rastegar S, Parimisetty A, Cassam Sulliman N, Narra SS, Weber S, Rastegar M, Viranaicken W, Couret D, Planesse C, Strähle U, Meilhac O, Lefebvre d'Hellencourt C, Diotel N. Expression of adiponectin receptors in the brain of adult zebrafish and mouse: Links with neurogenic niches and brain repair. J Comp Neurol 2019; 527:2317-2333. [DOI: 10.1002/cne.24669] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/18/2019] [Accepted: 02/26/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Sepand Rastegar
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology Eggenstein‐Leopoldshafen Germany
| | - Avinash Parimisetty
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
| | - Nora Cassam Sulliman
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
| | - Sai Sandhya Narra
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
| | - Sabrina Weber
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology Eggenstein‐Leopoldshafen Germany
| | - Maryam Rastegar
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology Eggenstein‐Leopoldshafen Germany
| | - Wildriss Viranaicken
- Université de La Réunion, INSERM, UMR 1187, Processus Infectieux en Milieu Insulaire Tropical (PIMIT), CNRS UMR9192, IRD UMR249 Saint‐Denis de La Réunion France
| | - David Couret
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
- CHU de La Réunion Saint‐Denis France
| | - Cynthia Planesse
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
| | - Uwe Strähle
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology Eggenstein‐Leopoldshafen Germany
| | - Olivier Meilhac
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
- CHU de La Réunion Saint‐Denis France
| | - Christian Lefebvre d'Hellencourt
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
| | - Nicolas Diotel
- Université de La Réunion, INSERM, UMR 1188, Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI) Saint‐Denis de La Réunion France
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13
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Kizil C, Bhattarai P. Is Alzheimer's Also a Stem Cell Disease? - The Zebrafish Perspective. Front Cell Dev Biol 2018; 6:159. [PMID: 30533414 PMCID: PMC6265475 DOI: 10.3389/fcell.2018.00159] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 11/06/2018] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease and is the leading form of dementia. AD entails chronic inflammation, impaired synaptic integrity and reduced neurogenesis. The clinical and molecular onsets of the disease do not temporally overlap and the initiation phase of the cellular changes might start with a complex causativeness between chronic inflammation, reduced neural stem cell plasticity and neurogenesis. Although the immune and neuronal aspects in AD are well studied, the neural stem cell-related features are far less investigated. An intriguing question is, therefore, whether a stem cell can ever be made proliferative and neurogenic during the prevalent AD in the brain. Recent findings affirm this hypothesis and thus a plausible way to circumvent the AD phenotypes could be to mobilize the endogenous stem cells by enhancing their proliferative and neurogenic capacity as well as to provide the newborn neurons the potential to survive and integrate into the existing circuitry. To address these questions, zebrafish offers unprecedented information and tools, which can be effectively translated into mammalian experimental systems.
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Affiliation(s)
- Caghan Kizil
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Helmholtz Association, Dresden, Germany
- Center for Regenerative Therapies Dresden, Cluster of Excellence, Technische Universität Dresden, Dresden, Germany
| | - Prabesh Bhattarai
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Helmholtz Association, Dresden, Germany
- Center for Regenerative Therapies Dresden, Cluster of Excellence, Technische Universität Dresden, Dresden, Germany
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14
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Taboada X, Viñas A, Adrio F. Comparative expression patterns ofSox2andSox19genes in the forebrain of developing and adult turbot (Scophthalmus maximus). J Comp Neurol 2017; 526:899-919. [DOI: 10.1002/cne.24374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 12/04/2017] [Accepted: 12/04/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Xoana Taboada
- Department of Zoology; Genetics and Physical Anthropology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela; Santiago de Compostela Spain
| | - Ana Viñas
- Department of Zoology; Genetics and Physical Anthropology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela; Santiago de Compostela Spain
| | - Fátima Adrio
- Department of Functional Biology, CIBUS, Faculty of Biology; Universidade de Santiago de Compostela; Santiago de Compostela Spain
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15
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Da Fonte DF, Martyniuk CJ, Xing L, Pelin A, Corradi N, Hu W, Trudeau VL. Secretoneurin A regulates neurogenic and inflammatory transcriptional networks in goldfish (Carassius auratus) radial glia. Sci Rep 2017; 7:14930. [PMID: 29097753 PMCID: PMC5668316 DOI: 10.1038/s41598-017-14930-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/18/2017] [Indexed: 12/27/2022] Open
Abstract
Radial glial cells (RGCs) are the most abundant macroglia in the teleost brain and have established roles in neurogenesis and neurosteroidogenesis; however, their transcriptome remains uncharacterized, which limits functional understanding of this important cell type. Using cultured goldfish RGCs, RNA sequencing and de novo transcriptome assembly were performed, generating the first reference transcriptome for fish RGCs with 17,620 unique genes identified. These data revealed that RGCs express a diverse repertoire of receptors and signaling molecules, suggesting that RGCs may respond to and synthesize an array of hormones, peptides, cytokines, and growth factors. Building upon neuroanatomical data and studies investigating direct neuronal regulation of RGC physiology, differential gene expression analysis was conducted to identify transcriptional networks that are responsive to the conserved secretogranin II-derived neuropeptide secretoneurin A (SNa). Pathway analysis of the transcriptome indicated that cellular processes related to the central nervous system (e.g., neurogenesis, synaptic plasticity, glial cell development) and immune functions (e.g., immune system activation, leukocyte function, macrophage response) were preferentially modulated by SNa. These data reveal an array of new functions that are proposed to be critical to neuronal-glial interactions through the mediator SNa.
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Affiliation(s)
- Dillon F Da Fonte
- Department of Biology, University of Ottawa, Ontario, K1N 6N5, Canada
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Lei Xing
- Department of Biology, University of Ottawa, Ontario, K1N 6N5, Canada.,Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, 01307, Germany
| | - Adrian Pelin
- Department of Biology, University of Ottawa, Ontario, K1N 6N5, Canada
| | - Nicolas Corradi
- Department of Biology, University of Ottawa, Ontario, K1N 6N5, Canada
| | - Wei Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Vance L Trudeau
- Department of Biology, University of Ottawa, Ontario, K1N 6N5, Canada.
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16
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Liu X, Kang L, Liu W, Lou B, Wu C, Jiang L. Molecular characterization and expression analysis of the large yellow croaker (Larimichthys crocea) chemokine receptors CXCR2, CXCR3, and CXCR4 after bacterial and poly I:C challenge. FISH & SHELLFISH IMMUNOLOGY 2017; 70:228-239. [PMID: 28870858 DOI: 10.1016/j.fsi.2017.08.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 08/19/2017] [Accepted: 08/27/2017] [Indexed: 06/07/2023]
Abstract
The large yellow croaker (Larimichthys crocea) has a well-developed innate immune system. We studied a component of this system, chemokine receptor CXCR family. In this study, we report the full-length open reading frames, as well as the identification and characterization of the chemokine receptor genes CXCR2 (LycCXCR2), CXCR3 (LycCXCR3), and CXCR4 (LycCXCR4) of large yellow croaker. We report that LycCXCR3 and LycCXCR4 are evolving neutrally according to PAML analyses. Quantitative real-time PCR analysis revealed that CXCR transcripts were expressed in all examined tissues. The expression of chemokine receptors LycCXCR2, LycCXCR3, and LycCXCR4 was elevated in the kidney, spleen, and particularly the liver of the large yellow croaker after challenge with Vibrio anguillarum and polyinosinic:polycytidylic acid (poly I:C). These results suggest that LycCXCR2, LycCXCR3, and LycCXCR4 may be important immune-related genes, playing crucial roles in immune defence against bacterial infection.
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MESH Headings
- Amino Acid Sequence
- Animals
- Base Sequence
- Fish Diseases/immunology
- Fish Proteins/chemistry
- Fish Proteins/genetics
- Fish Proteins/immunology
- Gene Expression Profiling/veterinary
- Gene Expression Regulation/immunology
- Immunity, Innate/genetics
- Perciformes/genetics
- Perciformes/immunology
- Phylogeny
- Poly I-C/pharmacology
- Receptors, CXCR3/chemistry
- Receptors, CXCR3/genetics
- Receptors, CXCR3/immunology
- Receptors, CXCR4/chemistry
- Receptors, CXCR4/genetics
- Receptors, CXCR4/immunology
- Receptors, Chemokine/chemistry
- Receptors, Chemokine/genetics
- Receptors, Chemokine/immunology
- Receptors, Interleukin-8B/chemistry
- Receptors, Interleukin-8B/genetics
- Receptors, Interleukin-8B/immunology
- Sequence Alignment/veterinary
- Vibrio/physiology
- Vibrio Infections/immunology
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Affiliation(s)
- Xiaoxu Liu
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Lisen Kang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Wei Liu
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Bao Lou
- Marine Fishery Institute of Zhejiang Province, Key Laboratory of Mariculturre and Enhancement of Zhejiang Province, Zhoushan, Zhejiang Province, 316021, China
| | - Changwen Wu
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Lihua Jiang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China.
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17
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Weger M, Diotel N, Dorsemans AC, Dickmeis T, Weger BD. Stem cells and the circadian clock. Dev Biol 2017; 431:111-123. [DOI: 10.1016/j.ydbio.2017.09.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/11/2017] [Accepted: 09/08/2017] [Indexed: 12/20/2022]
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18
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Bhattarai P, Thomas AK, Cosacak MI, Papadimitriou C, Mashkaryan V, Zhang Y, Kizil C. Modeling Amyloid-β42 Toxicity and Neurodegeneration in Adult Zebrafish Brain. J Vis Exp 2017. [PMID: 29155703 DOI: 10.3791/56014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Alzheimer's disease (AD) is a debilitating neurodegenerative disease in which accumulation of toxic amyloid-β42 (Aβ42) peptides leads to synaptic degeneration, inflammation, neuronal death, and learning deficits. Humans cannot regenerate lost neurons in the case of AD in part due to impaired proliferative capacity of the neural stem/progenitor cells (NSPCs) and reduced neurogenesis. Therefore, efficient regenerative therapies should also enhance the proliferation and neurogenic capacity of NSPCs. Zebrafish (Danio rerio) is a regenerative organism, and we can learn the basic molecular programs with which we could design therapeutic approaches to tackle AD. For this reason, the generation of an AD-like model in zebrafish was necessary. Using our methodology, we can introduce synthetic derivatives of Aβ42 peptide with tissue penetrating capability into the adult zebrafish brain, and analyze the disease pathology and the regenerative response. The advantage over the existing methods or animal models is that zebrafish can teach us how a vertebrate brain can naturally regenerate, and thus help us to treat human neurodegenerative diseases better by targeting endogenous NSPCs. Therefore, the amyloid-toxicity model established in the adult zebrafish brain may open new avenues for research in the field of neuroscience and clinical medicine. Additionally, the simple execution of this method allows for cost-effective and efficient experimental assessment. This manuscript describes the synthesis and injection of Aβ42 peptides into zebrafish brain.
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Affiliation(s)
- Prabesh Bhattarai
- German Centre for Neurodegenerative Diseases (DZNE) Dresden within Helmholtz Association
| | | | - Mehmet Ilyas Cosacak
- German Centre for Neurodegenerative Diseases (DZNE) Dresden within Helmholtz Association
| | - Christos Papadimitriou
- German Centre for Neurodegenerative Diseases (DZNE) Dresden within Helmholtz Association
| | | | - Yixin Zhang
- B CUBE, Center for Molecular Bioengineering, Technische Universität Dresden
| | - Caghan Kizil
- German Centre for Neurodegenerative Diseases (DZNE) Dresden within Helmholtz Association; Center for Regenerative Therapies Dresden (CRTD), TU Dresden;
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19
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Labak I, Pavić V, Zjalić M, Blažetić S, Viljetić B, Merdić E, Heffer M. PSA-NCAM expression in the teleost optic tectum is related to ecological niche and use of vision in finding food. JOURNAL OF FISH BIOLOGY 2017; 91:473-489. [PMID: 28656586 DOI: 10.1111/jfb.13352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/15/2017] [Indexed: 06/07/2023]
Abstract
In this study, tangential migration and neuronal connectivity organization were analysed in the optic tectum of seven different teleosts through the expression of polysialylated neural cell adhesion molecule (PSA-NCAM) in response to ecological niche and use of vision. Reduced PSA-NCAM expression in rainbow trout Oncorhynchus mykiss optic tectum occurred in efferent layers, while in pike Esox lucius and zebrafish Danio rerio it occurred in afferent and efferent layers. Zander Sander lucioperca and European eel Anguilla anguilla had very low PSA-NCAM expression in all tectal layers except in the stratum marginale. Common carp Cyprinus carpio and wels catfish Silurus glanis had the same intensity of PSA-NCAM expression in all tectal layers. The optic tectum of all studied fishes was also a site of tangential migration with sustained PSA-NCAM and c-series ganglioside expression. Anti-c-series ganglioside immunoreactivity was observed in all tectal layers of all analysed fishes, even in layers where PSA-NCAM expression was reduced. Since the optic tectum is indispensable for visually guided prey capture, stabilization of synaptic contact and decrease of neurogenesis and tangential migration in the visual map are an expected adjustment to ecological niche. The authors hypothesize that this stabilization would probably be achieved by down-regulation of PSA-NCAM rather than c-series of ganglioside.
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Affiliation(s)
- I Labak
- Department of Biology, J. J. Strossmayer in Osijek, Ulica cara Hadrijana 8/A, 31000, Osijek, Croatia
| | - V Pavić
- Department of Biology, J. J. Strossmayer in Osijek, Ulica cara Hadrijana 8/A, 31000, Osijek, Croatia
| | - M Zjalić
- Department of Biology, J. J. Strossmayer in Osijek, Ulica cara Hadrijana 8/A, 31000, Osijek, Croatia
| | - S Blažetić
- Department of Biology, J. J. Strossmayer in Osijek, Ulica cara Hadrijana 8/A, 31000, Osijek, Croatia
| | - B Viljetić
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, J. J. Strossmayer in Osijek, Faculty of Medicine, Ulica cara Hadrijana 10, 31000, Osijek, Croatia
| | - E Merdić
- Department of Biology, J. J. Strossmayer in Osijek, Ulica cara Hadrijana 8/A, 31000, Osijek, Croatia
| | - M Heffer
- Department of Medical Biology and Genetics, J. J. Strossmayer in Osijek, Faculty of Medicine, Ulica cara Hadrijana 10, 31000, Osijek, Croatia
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20
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Anand SK, Mondal AC. Cellular and molecular attributes of neural stem cell niches in adult zebrafish brain. Dev Neurobiol 2017; 77:1188-1205. [PMID: 28589616 DOI: 10.1002/dneu.22508] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 04/05/2017] [Accepted: 06/02/2017] [Indexed: 12/20/2022]
Abstract
Adult neurogenesis is a complex, presumably conserved phenomenon in vertebrates with a broad range of variations regarding neural progenitor/stem cell niches, cellular composition of these niches, migratory patterns of progenitors and so forth among different species. Current understanding of the reasons underlying the inter-species differences in adult neurogenic potential, the identification and characterization of various neural progenitors, characterization of the permissive environment of neural stem cell niches and other important aspects of adult neurogenesis is insufficient. In the last decade, zebrafish has emerged as a very useful model for addressing these questions. In this review, we have discussed the present knowledge regarding the neural stem cell niches in adult zebrafish brain as well as their cellular and molecular attributes. We have also highlighted their similarities and differences with other vertebrate species. In the end, we shed light on some of the known intrinsic and extrinsic factors that are assumed to regulate the neurogenic process in adult zebrafish brain. © 2017 Wiley Periodicals, Inc. Develop Neurobiol 77: 1188-1205, 2017.
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Affiliation(s)
- Surendra Kumar Anand
- Cellular and Molecular Neurobiology Lab, School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi, India, 110067
| | - Amal Chandra Mondal
- Cellular and Molecular Neurobiology Lab, School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi, India, 110067
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21
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de Miranda AS, Zhang CJ, Katsumoto A, Teixeira AL. Hippocampal adult neurogenesis: Does the immune system matter? J Neurol Sci 2016; 372:482-495. [PMID: 27838002 DOI: 10.1016/j.jns.2016.10.052] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 09/28/2016] [Accepted: 10/25/2016] [Indexed: 01/22/2023]
Abstract
Adult hippocampal neurogenesis involves proliferation, survival, differentiation and integration of newborn neurons into pre-existing neuronal networks. Although its functional significance in the central nervous system (CNS) has not comprehensively elucidated, adult neurogenesis has been attributed a role in cognition, learning and memory. There is a growing body of evidence that CNS resident as well as peripheral immune cells participate in regulating hippocampal adult neurogenesis. Microglial cells are closely associated with neural stem/progenitor cell (NSPC) in the neurogenic niche engaged in a bidirectional communication with neurons, which may be important for adult neurogenesis. Microglial and neuronal crosstalk is mediated in part by CX3CL1/CX3CR1 signaling and a disruption in this pathway has been associated with impaired neurogenesis. It has been also reported that microglial neuroprotective or neurotoxic effects in adult neurogenesis occur in a context-dependent manner. Apart from microglia other brain resident and peripheral immune cells including pericytes, perivascular macrophages, mast cells and T-cells also modulate this phenomenon. It is worth mentioning that under some physiological circumstances such as normal aging there is a significant decrease in hippocampal neurogenesis. A role for innate and adaptive immune system in adult neurogenesis has been also reported during aging. Here, we review the current evidence regarding neuro-immune interactions in the regulation of neurogenesis under distinct conditions, including aging.
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Affiliation(s)
- Aline Silva de Miranda
- Neuroinflammation Research Center, Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Laboratory of Neurobiology "Conceição Machado", Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; Interdisciplinary Laboratory of Medical Investigation, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Cun-Jin Zhang
- Neuroinflammation Research Center, Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Neurology, Key Laboratory of Neurorepair and Regeneration, Tianjin and Ministry of Education, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Atsuko Katsumoto
- Neuroinflammation Research Center, Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Antônio Lúcio Teixeira
- Interdisciplinary Laboratory of Medical Investigation, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
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22
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Diotel N, Mérot Y, Coumailleau P, Gueguen MM, Sérandour AA, Salbert G, Kah O. 5-hydroxymethylcytosine marks postmitotic neural cells in the adult and developing vertebrate central nervous system. J Comp Neurol 2016; 525:478-497. [PMID: 27414756 DOI: 10.1002/cne.24077] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 06/20/2016] [Accepted: 06/22/2016] [Indexed: 12/29/2022]
Abstract
The epigenetic mark 5-hydroxymethylcytosine (5hmC) is a cytosine modification that is abundant in the central nervous system of mammals and which results from 5-methylcytosine oxidation by TET enzymes. Such a mark is suggested to play key roles in the regulation of chromatin structure and gene expression. However, its precise functions still remain poorly understood and information about its distribution in non-mammalian species is still lacking. Here, the distribution of 5hmC was investigated in the brain of adult zebrafish, African claw frog, and mouse in a comparative manner. We show that zebrafish neurons are endowed with high levels of 5hmC, whereas quiescent or proliferative neural progenitors show low to undetectable levels of the modified cytosine. In the brain of larval and juvenile Xenopus, 5hmC is also detected in neurons, while ventricular proliferative cells do not display this epigenetic mark. Similarly, 5hmC is enriched in neurons compared to neural progenitors of the ventricular zone in the mouse developing cortex. Interestingly, 5hmC colocalized with the methylated DNA binding protein MeCP2 and with the active chromatin histone modification H3K4me2 in mouse neurons. Taken together, our results show an evolutionarily conserved cerebral distribution of 5hmC between fish and tetrapods and reinforce the idea that 5hmC fulfills major functions in the control of chromatin activity in vertebrate neurons. J. Comp. Neurol. 525:478-497, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Nicolas Diotel
- Inserm, UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), plateforme CYROI, Université de La Réunion, UMR 1188, Sainte-Clotilde, France.,Université de La Réunion, UMR 1188, Sainte-Clotilde, France.,Inserm, UMR 1085, Research Institute in Health, Environment and Occupation, Institut National de la Santé et de la Recherche Médicale U1085, Université de Rennes 1, SFR Biosite, 9 avenue du Prof. Léon Bernard - Rennes, France
| | - Yohann Mérot
- Inserm, UMR 1085, Research Institute in Health, Environment and Occupation, Institut National de la Santé et de la Recherche Médicale U1085, Université de Rennes 1, SFR Biosite, 9 avenue du Prof. Léon Bernard - Rennes, France
| | - Pascal Coumailleau
- Inserm, UMR 1085, Research Institute in Health, Environment and Occupation, Institut National de la Santé et de la Recherche Médicale U1085, Université de Rennes 1, SFR Biosite, 9 avenue du Prof. Léon Bernard - Rennes, France
| | - Marie-Madeleine Gueguen
- Inserm, UMR 1085, Research Institute in Health, Environment and Occupation, Institut National de la Santé et de la Recherche Médicale U1085, Université de Rennes 1, SFR Biosite, 9 avenue du Prof. Léon Bernard - Rennes, France
| | | | - Gilles Salbert
- UMR 6290 CNRS, IGDR, Université de Rennes 1, Campus de Beaulieu, Rennes, France
| | - Olivier Kah
- Inserm, UMR 1085, Research Institute in Health, Environment and Occupation, Institut National de la Santé et de la Recherche Médicale U1085, Université de Rennes 1, SFR Biosite, 9 avenue du Prof. Léon Bernard - Rennes, France
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23
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Dorsemans AC, Soulé S, Weger M, Bourdon E, Lefebvre d'Hellencourt C, Meilhac O, Diotel N. Impaired constitutive and regenerative neurogenesis in adult hyperglycemic zebrafish. J Comp Neurol 2016; 525:442-458. [DOI: 10.1002/cne.24065] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 05/10/2016] [Accepted: 06/14/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Anne-Claire Dorsemans
- Inserm; UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI); plateforme CYROI Sainte-Clotilde F-97490 France
- Université de La Réunion, UMR 1188; Sainte-Clotilde F-97490 France
| | - Stéphanie Soulé
- Inserm; UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI); plateforme CYROI Sainte-Clotilde F-97490 France
- Université de La Réunion, UMR 1188; Sainte-Clotilde F-97490 France
| | - Meltem Weger
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences; University of Birmingham; Birmingham B15 2TT UK
| | - Emmanuel Bourdon
- Inserm; UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI); plateforme CYROI Sainte-Clotilde F-97490 France
- Université de La Réunion, UMR 1188; Sainte-Clotilde F-97490 France
| | - Christian Lefebvre d'Hellencourt
- Inserm; UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI); plateforme CYROI Sainte-Clotilde F-97490 France
- Université de La Réunion, UMR 1188; Sainte-Clotilde F-97490 France
| | - Olivier Meilhac
- Inserm; UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI); plateforme CYROI Sainte-Clotilde F-97490 France
- Université de La Réunion, UMR 1188; Sainte-Clotilde F-97490 France
- CHU de La Réunion; F-97400 Saint-Denis France
| | - Nicolas Diotel
- Inserm; UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI); plateforme CYROI Sainte-Clotilde F-97490 France
- Université de La Réunion, UMR 1188; Sainte-Clotilde F-97490 France
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24
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Cacialli P, Gueguen MM, Coumailleau P, D’Angelo L, Kah O, Lucini C, Pellegrini E. BDNF Expression in Larval and Adult Zebrafish Brain: Distribution and Cell Identification. PLoS One 2016; 11:e0158057. [PMID: 27336917 PMCID: PMC4918975 DOI: 10.1371/journal.pone.0158057] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 06/09/2016] [Indexed: 12/13/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF), a member of the neurotrophin family, has emerged as an active mediator in many essential functions in the central nervous system of mammals. BDNF plays significant roles in neurogenesis, neuronal maturation and/or synaptic plasticity and is involved in cognitive functions such as learning and memory. Despite the vast literature present in mammals, studies devoted to BDNF in the brain of other animal models are scarse. Zebrafish is a teleost fish widely known for developmental genetic studies and is emerging as model for translational neuroscience research. In addition, its brain shows many sites of adult neurogenesis allowing higher regenerative properties after traumatic injuries. To add further knowledge on neurotrophic factors in vertebrate brain models, we decided to determine the distribution of bdnf mRNAs in the larval and adult zebrafish brain and to characterize the phenotype of cells expressing bdnf mRNAs by means of double staining studies. Our results showed that bdnf mRNAs were widely expressed in the brain of 7 days old larvae and throughout the whole brain of mature female and male zebrafish. In adults, bdnf mRNAs were mainly observed in the dorsal telencephalon, preoptic area, dorsal thalamus, posterior tuberculum, hypothalamus, synencephalon, optic tectum and medulla oblongata. By combining immunohistochemistry with in situ hybridization, we showed that bdnf mRNAs were never expressed by radial glial cells or proliferating cells. By contrast, bdnf transcripts were expressed in cells with neuronal phenotype in all brain regions investigated. Our results provide the first demonstration that the brain of zebrafish expresses bdnf mRNAs in neurons and open new fields of research on the role of the BDNF factor in brain mechanisms in normal and brain repairs situations.
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Affiliation(s)
- Pietro Cacialli
- INSERM U1085, Research Institute in Health, Environment and Occupation (IRSET), University of Rennes 1, Rennes, France
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Napoli, Italy
| | - Marie-Madeleine Gueguen
- INSERM U1085, Research Institute in Health, Environment and Occupation (IRSET), University of Rennes 1, Rennes, France
| | - Pascal Coumailleau
- INSERM U1085, Research Institute in Health, Environment and Occupation (IRSET), University of Rennes 1, Rennes, France
| | - Livia D’Angelo
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Napoli, Italy
| | - Olivier Kah
- INSERM U1085, Research Institute in Health, Environment and Occupation (IRSET), University of Rennes 1, Rennes, France
| | - Carla Lucini
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Napoli, Italy
- * E-mail: (EP); (CL)
| | - Elisabeth Pellegrini
- INSERM U1085, Research Institute in Health, Environment and Occupation (IRSET), University of Rennes 1, Rennes, France
- * E-mail: (EP); (CL)
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25
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Mapping of brain lipid binding protein (Blbp) in the brain of adult zebrafish, co-expression with aromatase B and links with proliferation. Gene Expr Patterns 2016; 20:42-54. [DOI: 10.1016/j.gep.2015.11.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/25/2015] [Accepted: 11/10/2015] [Indexed: 01/05/2023]
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Bird S, Tafalla C. Teleost Chemokines and Their Receptors. BIOLOGY 2015; 4:756-84. [PMID: 26569324 PMCID: PMC4690017 DOI: 10.3390/biology4040756] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/20/2015] [Accepted: 11/03/2015] [Indexed: 12/14/2022]
Abstract
Chemokines are a superfamily of cytokines that appeared about 650 million years ago, at the emergence of vertebrates, and are responsible for regulating cell migration under both inflammatory and physiological conditions. The first teleost chemokine gene was reported in rainbow trout in 1998. Since then, numerous chemokine genes have been identified in diverse fish species evidencing the great differences that exist among fish and mammalian chemokines, and within the different fish species, as a consequence of extensive intrachromosomal gene duplications and different infectious experiences. Subsequently, it has only been possible to establish clear homologies with mammalian chemokines in the case of some chemokines with well-conserved homeostatic roles, whereas the functionality of other chemokine genes will have to be independently addressed in each species. Despite this, functional studies have only been undertaken for a few of these chemokine genes. In this review, we describe the current state of knowledge of chemokine biology in teleost fish. We have mainly focused on those species for which more research efforts have been made in this subject, specifically zebrafish (Daniorerio), rainbow trout (Oncorhynchusmykiss) and catfish (Ictaluruspunctatus), outlining which genes have been identified thus far, highlighting the most important aspects of their expression regulation and addressing any known aspects of their biological role in immunity. Finally, we summarise what is known about the chemokine receptors in teleosts and provide some analysis using recently available data to help characterise them more clearly.
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Affiliation(s)
- Steve Bird
- Biomedical Unit, School of Science, University of Waikato, Waikato 3240, New Zealand.
| | - Carolina Tafalla
- Animal Health Research Center (CISA-INIA), Carretera de Algete a El Casar km. 8.1, Valdeolmos, Madrid 28130, Spain.
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Xing L, McDonald H, Da Fonte DF, Gutierrez-Villagomez JM, Trudeau VL. Dopamine D1 receptor activation regulates the expression of the estrogen synthesis gene aromatase B in radial glial cells. Front Neurosci 2015; 9:310. [PMID: 26388722 PMCID: PMC4557113 DOI: 10.3389/fnins.2015.00310] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 08/18/2015] [Indexed: 11/13/2022] Open
Abstract
Radial glial cells (RGCs) are abundant stem-like non-neuronal progenitors that are important for adult neurogenesis and brain repair, yet little is known about their regulation by neurotransmitters. Here we provide evidence for neuronal-glial interactions via a novel role for dopamine to stimulate RGC function. Goldfish were chosen as the model organism due to the abundance of RGCs and regenerative abilities of the adult central nervous system. A close anatomical relationship was observed between tyrosine hydroxylase-positive catecholaminergic cell bodies and axons and dopamine-D1 receptor expressing RGCs along the ventricular surface of telencephalon, a site of active neurogenesis. A primary cell culture model was established and immunofluorescence analysis indicates that in vitro RGCs from female goldfish retain their major characteristics in vivo, including expression of glial fibrillary acidic protein and brain lipid binding protein. The estrogen synthesis enzyme aromatase B is exclusively found in RGCs, but this is lost as cells differentiate to neurons and other glial types in adult teleost brain. Pharmacological experiments using the cultured RGCs established that specific activation of dopamine D1 receptors up-regulates aromatase B mRNA through a cyclic adenosine monophosphate-dependent molecular mechanism. These data indicate that dopamine enhances the steroidogenic function of this neuronal progenitor cell.
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Affiliation(s)
- Lei Xing
- Department of Biology, Centre for Advanced Research in Environmental Genomics, University of Ottawa Ottawa, ON, Canada
| | - Heather McDonald
- Department of Biology, Centre for Advanced Research in Environmental Genomics, University of Ottawa Ottawa, ON, Canada
| | - Dillon F Da Fonte
- Department of Biology, Centre for Advanced Research in Environmental Genomics, University of Ottawa Ottawa, ON, Canada
| | - Juan M Gutierrez-Villagomez
- Department of Biology, Centre for Advanced Research in Environmental Genomics, University of Ottawa Ottawa, ON, Canada
| | - Vance L Trudeau
- Department of Biology, Centre for Advanced Research in Environmental Genomics, University of Ottawa Ottawa, ON, Canada
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Lin CJ, Fan-Chiang YC, Dufour S, Chang CF. Activation of brain steroidogenesis and neurogenesis during the gonadal differentiation in protandrous black porgy, Acanthopagrus schlegelii. Dev Neurobiol 2015; 76:121-36. [PMID: 25980979 DOI: 10.1002/dneu.22303] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 03/09/2015] [Accepted: 05/07/2015] [Indexed: 02/05/2023]
Abstract
The early brain development, at the time of gonadal differentiation was investigated using a protandrous teleost, black porgy. This natural model of monosex juvenile fish avoids the potential complexity of sexual dimorphism. Brain neurogenesis was evaluated by histological analyses of the diencephalon, at the time of testicular differentiation (in fish between 90 and 150 days after hatching). Increases in the number of both Nissl-stained total brain cells, and Pcna-immunostained proliferative brain cells were observed in specific area of the diencephalon, such as ventromedialis thalami and posterior preoptic area, revealing brain cell proliferation. qPCR analyses showed significantly higher expression of the radial glial cell marker blbp and neuron marker bdnf. Strong immunohistochemical staining of Blbp and extended cellular projections were observed. A peak expression of aromatase (cyp19a1b), as well as an increase in estradiol (E2 ) content were also detected in the early brain. These data demonstrate that during gonadal differentiation, the early brain exhibits increased E2 synthesis, cell proliferation, and neurogenesis. To investigate the role of E2 in early brain, undifferentiated fish were treated with E2 or aromatase inhibitor (AI). E2 treatment upregulated brain cyp19a1b and blbp expression, and enhanced brain cell proliferation. Conversely, AI reduced brain cell proliferation. Castration experiment did not influence the brain gene expression patterns and the brain cell number. Our data clearly support E2 biosynthesis in the early brain, and that brain E2 induces neurogenesis. These peak activity patterns in the early brain occur at the time of gonad differentiation but are independent of the gonads.
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Affiliation(s)
- Chien-Ju Lin
- Department of Aquaculture, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Yi-Chun Fan-Chiang
- Department of Aquaculture, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Sylvie Dufour
- Research Unit BOREA, Biology of Aquatic Organisms and Ecosystems, CNRS 7208/IRD 207/UPMC/UCBN, Muséum National D'histoire Naturelle, Paris, France
| | - Ching-Fong Chang
- Department of Aquaculture, National Taiwan Ocean University, Keelung, 20224, Taiwan.,Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan
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29
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Kizil C, Kyritsis N, Brand M. Effects of inflammation on stem cells: together they strive? EMBO Rep 2015; 16:416-26. [PMID: 25739812 DOI: 10.15252/embr.201439702] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 02/19/2015] [Indexed: 12/12/2022] Open
Abstract
Inflammation entails a complex set of defense mechanisms acting in concert to restore the homeostatic balance in organisms after damage or pathogen invasion. This immune response consists of the activity of various immune cells in a highly complex manner. Inflammation is a double-edged sword as it is reported to have both detrimental and beneficial consequences. In this review, we discuss the effects of inflammation on stem cell activity, focusing primarily on neural stem/progenitor cells in mammals and zebrafish. We also give a brief overview of the effects of inflammation on other stem cell compartments, exemplifying the positive and negative role of inflammation on stemness. The majority of the chronic diseases involve an unremitting phase of inflammation due to improper resolution of the initial pro-inflammatory response that impinges on the stem cell behavior. Thus, understanding the mechanisms of crosstalk between the inflammatory milieu and tissue-resident stem cells is an important basis for clinical efforts. Not only is it important to understand the effect of inflammation on stem cell activity for further defining the etiology of the diseases, but also better mechanistic understanding is essential to design regenerative therapies that aim at micromanipulating the inflammatory milieu to offset the negative effects and maximize the beneficial outcomes.
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Affiliation(s)
- Caghan Kizil
- German Centre for Neurodegenerative Diseases (DZNE) Dresden within the Helmholtz Association, Dresden, Germany DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence (CRTD) of the Technische Universität Dresden, Dresden, Germany
| | - Nikos Kyritsis
- DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence (CRTD) of the Technische Universität Dresden, Dresden, Germany
| | - Michael Brand
- DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence (CRTD) of the Technische Universität Dresden, Dresden, Germany
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30
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Grimholt U, Hauge H, Hauge AG, Leong J, Koop BF. Chemokine receptors in Atlantic salmon. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 49:79-95. [PMID: 25445904 DOI: 10.1016/j.dci.2014.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 11/09/2014] [Accepted: 11/10/2014] [Indexed: 06/04/2023]
Abstract
Teleost sequence data have revealed that many immune genes have evolved differently when compared to other vertebrates. Thus, each gene family needs functional studies to define the biological role of individual members within major species groups. Chemokine receptors, being excellent markers for various leukocyte subpopulations, are one such example where studies are needed to decipher individual gene function. The unique salmonid whole genome duplication that occurred approximately 95 million years ago has provided salmonids with many additional duplicates further adding to the complexity and diversity. Here we have performed a systematic study of these receptors in Atlantic salmon with particular focus on potential inflammatory receptors. Using the preliminary salmon genome data we identified 48 chemokine or chemokine-like receptors including orthologues to the ten receptors previously published in trout. We found expressed support for 40 of the bona fide salmon receptors. Eighteen of the chemokine receptors are duplicated, and when tested against a diploid sister group the majority were shown to be remnants of the 4R whole genome duplication with subsequent high sequence identity. The salmon chemokine receptor repertoire of 40 expressed bona fide genes is comparably larger than that found in humans with 23 receptors. Diversification has been a major driving force for these duplicate genes with the main variability residing in ligand binding and signalling domains.
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Affiliation(s)
| | - Helena Hauge
- Norwegian Veterinary Institute, P.O. Box 750 Sentrum, 0106 Oslo, Norway
| | | | - Jong Leong
- Centre for Biomedical Research, Department of Biology, University of Victoria, PO Box 3020 STN CSC, Victoria, Canada
| | - Ben F Koop
- Centre for Biomedical Research, Department of Biology, University of Victoria, PO Box 3020 STN CSC, Victoria, Canada
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Ristori E, Lopez-Ramirez MA, Narayanan A, Hill-Teran G, Moro A, Calvo CF, Thomas JL, Nicoli S. A Dicer-miR-107 Interaction Regulates Biogenesis of Specific miRNAs Crucial for Neurogenesis. Dev Cell 2015; 32:546-60. [PMID: 25662174 DOI: 10.1016/j.devcel.2014.12.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 10/16/2014] [Accepted: 12/17/2014] [Indexed: 01/07/2023]
Abstract
Dicer controls the biogenesis of microRNAs (miRNAs) and is essential for neurogenesis. Recent reports show that the levels and substrate selectivity of DICER result in the preferential biogenesis of specific miRNAs in vitro. However, how dicer expression levels and miRNA biogenesis are regulated in vivo and how this affects neurogenesis is incompletely understood. Here we show that during zebrafish hindbrain development dicer expression levels are controlled by miR-107 to tune the biogenesis of specific miRNAs, such as miR-9, whose levels regulate neurogenesis. Loss of miR-107 function stabilizes dicer levels and miR-9 biogenesis across the ventricular hindbrain zone, resulting in an increase of both proliferating progenitors and postmitotic neurons. miR-9 ectopic accumulation in differentiating neuronal cells recapitulated the excessive neurogenesis phenotype. We propose that miR-107 modulation of dicer levels in differentiating neuronal cells is required to maintain the homeostatic levels of specific miRNAs, whose precise accumulation is essential for neurogenesis.
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Affiliation(s)
- Emma Ristori
- Yale Cardiovascular Research Center, Internal Medicine, Yale University, New Haven, CT 06511, USA
| | | | - Anand Narayanan
- Yale Cardiovascular Research Center, Internal Medicine, Yale University, New Haven, CT 06511, USA
| | - Guillermina Hill-Teran
- Yale Cardiovascular Research Center, Internal Medicine, Yale University, New Haven, CT 06511, USA
| | - Albertomaria Moro
- Yale Cardiovascular Research Center, Internal Medicine, Yale University, New Haven, CT 06511, USA
| | - Charles-Félix Calvo
- University Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epiniere, UMR S975, Paris 75651, France; INSERM/CNRS U-1127/UMR-7225, Paris 75651, France; AP-HP, Groupe Hospitalier Pitié-Salpètrière, Paris 75651, France
| | - Jean-Léon Thomas
- Yale Cardiovascular Research Center, Internal Medicine, Yale University, New Haven, CT 06511, USA; University Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epiniere, UMR S975, Paris 75651, France; INSERM/CNRS U-1127/UMR-7225, Paris 75651, France; AP-HP, Groupe Hospitalier Pitié-Salpètrière, Paris 75651, France
| | - Stefania Nicoli
- Yale Cardiovascular Research Center, Internal Medicine, Yale University, New Haven, CT 06511, USA.
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32
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Ding H, Jin GH, Zou LQ, Zhang XQ, Li HM, Tao XL, Zhang XH, Qin JB, Tian ML. Stromal derived factor-1α in hippocampus radial glial cells in vitro regulates the migration of neural progenitor cells. Cell Biol Int 2015; 39:750-8. [PMID: 25604551 DOI: 10.1002/cbin.10442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 01/13/2015] [Indexed: 01/01/2023]
Abstract
Stromal derived factor-1α (SDF-1α), a critical chemokine that promotes cell homing to target tissues, was presumed to be involved in the traumatic brain injury cortex. In this study, we determined the expression of SDF-1α in the hippocampus after transection of the fimbria fornix (FF). Realtime PCR and ELISA showed that mRNA transcription and SDF-1α proteins increased significantly after FF transection. In vitro, the expression of SDF-1α in radial glial cells (RGCs) incubated with deafferented hippocampus extracts was observed to be greater than in those incubated with normal hippocampus extracts. The co-culture of neural progenitor cells (NPCs) and RGCs indicated that the extracts of deafferented hippocampus induced more NPCs migrating toward RGCs than the normal extracts. Suppression or overexpression of SDF-1α in RGCs markedly either decreased or increased, respectively, the migration of NPCs. These results suggest that after FF transection, SDF-1α in the deafferented hippocampus was upregulated and might play an important role in RGC induction of NPC migration; therefore, SDF-1α is a target for additional research for determining new therapy for brain injuries.
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Affiliation(s)
- Hui Ding
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Guo-Hua Jin
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Lin-Qing Zou
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Xiao-Qing Zhang
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Hao-Ming Li
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Xue-Lei Tao
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Xin-Hua Zhang
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Jian-Bing Qin
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Mei-Ling Tian
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, 226001, People's Republic of China
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33
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Xing L, Goswami M, Trudeau VL. Radial glial cell: critical functions and new perspective as a steroid synthetic cell. Gen Comp Endocrinol 2014; 203:181-5. [PMID: 24675515 DOI: 10.1016/j.ygcen.2014.03.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/13/2014] [Accepted: 03/15/2014] [Indexed: 11/26/2022]
Abstract
The radial glial cell (RGC) is a glial cell type in the central nervous system of all vertebrates. Adult teleost fish have abundant RGCs in the brain in contrast to mammals. Adult fish RGCs have many important functions, including forming a structural scaffold to guide neuronal migration and serving as the progenitor cells in the brain to generate neurons. The role of the RGC in adult neurogenesis explains the high regenerative capacity of adult fish brain. There is increasing evidence from several species that some glial cells produce or metabolize steroids. It is now well-known that teleost RGCs express aromatase and produce estrogens from androgen precursors, which may be important for local neuroendocrine functions and regulation of neurogenesis. The question of whether RGCs are capable of de novo steroid synthesis from cholesterol remains unanswered. However, the expression of steroidogenic acute regulatory protein, and the key enzyme cytochrome P450 17alpha-hydroxylase in primary cultures of goldfish RGCs indicate the potential to produce 17α-hydroxy-pregnenolone and thus other steroid intermediates. The possibility of synthesizing additional non-estrogenic steroids may indicate new functions for the RGC.
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Affiliation(s)
- L Xing
- Centre for Advanced Research in Environmental Genomics, Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - M Goswami
- National Bureau of Fish Genetic Resources, Dilkusha, Lucknow, India
| | - V L Trudeau
- Centre for Advanced Research in Environmental Genomics, Department of Biology, University of Ottawa, Ottawa, Ontario, Canada.
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34
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Radial Glia, the Keystone of the Development of the Hippocampal Dentate Gyrus. Mol Neurobiol 2014; 51:131-41. [DOI: 10.1007/s12035-014-8692-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/24/2014] [Indexed: 01/20/2023]
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35
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Kyritsis N, Kizil C, Brand M. Neuroinflammation and central nervous system regeneration in vertebrates. Trends Cell Biol 2013; 24:128-35. [PMID: 24029244 DOI: 10.1016/j.tcb.2013.08.004] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 01/11/2023]
Abstract
Injuries in the central nervous system (CNS) are one of the leading causes of mortality or persistent disabilities in humans. One of the reasons why humans cannot recover from neuronal loss is the limited regenerative capacity of their CNS. By contrast, non-mammalian vertebrates exhibit widespread regeneration in diverse tissues including the CNS. Understanding those mechanisms activated during regeneration may improve the regenerative outcome in the severed mammalian CNS. Of those mechanisms, recent evidence suggests that inflammation may be important in regeneration. In this review we compare the different events following acute CNS injury in mammals and non-mammalian vertebrates. We also discuss the involvement of the immune response in initiating regenerative programs and how immune cells and neural stem/progenitor cells (NSPCs) communicate.
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Affiliation(s)
- Nikos Kyritsis
- DFG Center for Regenerative Therapies Dresden - Cluster of Excellence (CRTD), Technische Universität Dresden, Fetscherstraße 105, 01307, Dresden, Germany
| | - Caghan Kizil
- DFG Center for Regenerative Therapies Dresden - Cluster of Excellence (CRTD), Technische Universität Dresden, Fetscherstraße 105, 01307, Dresden, Germany
| | - Michael Brand
- DFG Center for Regenerative Therapies Dresden - Cluster of Excellence (CRTD), Technische Universität Dresden, Fetscherstraße 105, 01307, Dresden, Germany.
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36
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Mithal DS, Ren D, Miller RJ. CXCR4 signaling regulates radial glial morphology and cell fate during embryonic spinal cord development. Glia 2013; 61:1288-305. [PMID: 23828719 DOI: 10.1002/glia.22515] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 03/04/2013] [Accepted: 04/01/2013] [Indexed: 12/20/2022]
Abstract
Embryonic meninges secrete the chemokine SDF-1/CXCL12 as a chemotactic guide for migrating neural stem cells, but SDF-1 is not known to directly regulate the functions of radial glia. Recently, the developing meninges have been shown to regulate radial glial function, yet the mechanisms and signals responsible for this phenomenon remain unclear. Moreover, as a nonmigratory cell type, radial glia do not conform to traditional models associated with chemokine signaling in the central nervous system. Using fluorescent transgenes, in vivo genetic manipulations and pharmacological techniques, we demonstrate that SDF-1 derived from the meninges exerts a CXCR4-dependent effect on radial glia. Deletion of CXCR4 expression by radial glia influences their morphology, mitosis, and progression through both oligodendroglial and astroglial lineages. Additionally, disruption of CXCR4 signaling in radial glia has a transient effect on the migration of oligodendrocyte progenitors. These data indicate that a specific chemokine signal derived from the meninges has multiple regulatory effects on radial glia.
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Affiliation(s)
- Divakar S Mithal
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University, 303 E Chicago Ave, Chicago, IL 60611, USA
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37
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Virgintino D, Errede M, Rizzi M, Girolamo F, Strippoli M, Wälchli T, Robertson D, Frei K, Roncali L. The CXCL12/CXCR4/CXCR7 ligand-receptor system regulates neuro-glio-vascular interactions and vessel growth during human brain development. J Inherit Metab Dis 2013; 36:455-66. [PMID: 23344887 DOI: 10.1007/s10545-012-9574-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 11/29/2012] [Accepted: 12/03/2012] [Indexed: 12/30/2022]
Abstract
This study investigates glio-vascular interactions in human fetal brain at midgestation, specifically examining the expression and immunolocalization of the CXCL12/CXCR4/CXCR7 ligand-receptor axis and its possible role in the vascular patterning of the developing brain. At midgestation, the telencephalic vesicles are characterized by well developed radial glia cells (RGCs), the first differentiated astrocytes and a basic vascular network mainly built of radial vessels. RGCs have been recognized to contribute to cerebral cortex neuro-vascular architecture and have also been demonstrated to act as a significant source of neural cells (Rakic, Brain Res 33:471-476, 1971; Malatesta et al, Development 127:5253-5263, 2000). According to our hypothesis CXCL12, a potent migration and differentiation chemokine released by RGCs, may act as a linking factor coordinating neuroblast migration with vessel growth and patterning through the activation of different ligand/receptor axes. The obtained results support this hypothesis showing that together with CXCR4/CXCR7-reactive neuroblasts, which migrate in close association with CXCL12 RGCs, layer-specific subsets of CXCL12 RGCs and astrocytes specifically contact the microvessel wall. Moreover, the CXCL12/CXCR4/CXCR7 system appears to be directly involved in microvessel growth, its members being differentially expressed in angiogenically activated microvessels and vascular sprouts.
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Affiliation(s)
- Daniela Virgintino
- Department of Basic Medical Sciences, Neurosciences, Sensory Organs-Human Anatomy and Histology Unit, University of Bari School of Medicine, Bari, Italy.
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38
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Abstract
At birth or after hatching from the egg, vertebrate brains still contain neural stem cells which reside in specialized niches. In some cases, these stem cells are deployed for further postnatal development of parts of the brain until the final structure is reached. In other cases, postnatal neurogenesis continues as constitutive neurogenesis into adulthood leading to a net increase of the number of neurons with age. Yet, in other cases, stem cells fuel neuronal turnover. An example is protracted development of the cerebellar granular layer in mammals and birds, where neurogenesis continues for a few weeks postnatally until the granular layer has reached its definitive size and stem cells are used up. Cerebellar growth also provides an example of continued neurogenesis during adulthood in teleosts. Again, it is the granular layer that grows as neurogenesis continues and no definite adult cerebellar size is reached. Neuronal turnover is most clearly seen in the telencephalon of male canaries, where projection neurons are replaced in nucleus high vocal centre each year before the start of a new mating season--circuitry reconstruction to achieve changes of the song repertoire in these birds? In this review, we describe these and other examples of adult neurogenesis in different vertebrate taxa. We also compare the structure of the stem cell niches to find common themes in their organization despite different functions adult neurogenesis serves in different species. Finally, we report on regeneration of the zebrafish telencephalon after injury to highlight similarities and differences of constitutive neurogenesis and neuronal regeneration.
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Affiliation(s)
- Heiner Grandel
- DFG-Center for Regenerative Therapies Dresden-Cluster of Excellence, University of Technology Dresden, Fetscherstr 105, 01307 Dresden, Germany
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39
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Zlotnik A, Yoshie O. The chemokine superfamily revisited. Immunity 2012; 36:705-16. [PMID: 22633458 DOI: 10.1016/j.immuni.2012.05.008] [Citation(s) in RCA: 820] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 04/19/2012] [Accepted: 05/08/2012] [Indexed: 02/08/2023]
Abstract
The chemokine superfamily consists of a large number of ligands and receptors. At first glance, this family appears redundant and their ligand-receptor relationships promiscuous, making its study challenging. However, analyzing this family from the evolutionary perspective greatly simplifies understanding both the organization and function of this apparently complex system. In particular, the functions of a subgroup of chemokines (designated homeostatic chemokines) have played pivotal roles in advancing our understanding of the organization and function of the cellular networks that shape the immune system. Here, we update the full scope of the human and mouse chemokine superfamilies and their relationships and summarize several important roles that homeostatic chemokines play in the immune system.
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Affiliation(s)
- Albert Zlotnik
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697, USA.
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40
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Jeng SR, Yueh WS, Pen YT, Gueguen MM, Pasquier J, Dufour S, Chang CF, Kah O. Expression of aromatase in radial glial cells in the brain of the Japanese eel provides insight into the evolution of the cyp191a gene in Actinopterygians. PLoS One 2012; 7:e44750. [PMID: 22957105 PMCID: PMC3434150 DOI: 10.1371/journal.pone.0044750] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 08/06/2012] [Indexed: 11/23/2022] Open
Abstract
The cyp19a1 gene that encodes aromatase, the only enzyme permitting conversion of C19 aromatizable androgens into estrogens, is present as a single copy in the genome of most vertebrate species, except in teleosts in which it has been duplicated. This study aimed at investigating the brain expression of a cyp19a1 gene expressed in both gonad and brain of Japanese eel, a basal teleost. By means of immunohistochemistry and in situ hybridization, we show that cyp19a1 is expressed only in radial glial cells of the brain and in pituitary cells. Treatments with salmon pituitary homogenates (female) or human chorionic gonadotrophin (male), known to turn on steroid production in immature eels, strongly stimulated cyp19a1 messenger and protein expression in radial glial cells and pituitary cells. Using double staining studies, we also showed that aromatase-expressing radial glial cells exhibit proliferative activity in both the brain and the pituitary. Altogether, these data indicate that brain and pituitary expression of Japanese eel cyp19a1 exhibits characteristics similar to those reported for the brain specific cyp19a1b gene in teleosts having duplicated cyp19a1 genes. This supports the hypothesis that, despite the fact that eels also underwent the teleost specific genome duplication, they have a single cyp19a1 expressed in both brain and gonad. Such data also suggest that the intriguing features of brain aromatase expression in teleost fishes were not gained after the whole genome duplication and may reflect properties of the cyp19a1 gene of ancestral Actinopterygians.
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Affiliation(s)
- Shan-Ru Jeng
- Department of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
- Team NEED, Institut de Recherche en Santé, Environnement et Travail, INSERM U1085, IFR140, Université de Rennes 1, Rennes, France
| | - Wen-Shiun Yueh
- Department of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - Yi-Ting Pen
- Department of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - Marie-Madeleine Gueguen
- Team NEED, Institut de Recherche en Santé, Environnement et Travail, INSERM U1085, IFR140, Université de Rennes 1, Rennes, France
| | - Jérémy Pasquier
- Research Unit BOREA, Biology of Aquatic Organisms and Ecosystems, CNRS 7208/IRD 207/UPMC, Muséum National d'Histoire Naturelle, Paris, France
| | - Sylvie Dufour
- Research Unit BOREA, Biology of Aquatic Organisms and Ecosystems, CNRS 7208/IRD 207/UPMC, Muséum National d'Histoire Naturelle, Paris, France
| | - Ching-Fong Chang
- Research Unit BOREA, Biology of Aquatic Organisms and Ecosystems, CNRS 7208/IRD 207/UPMC, Muséum National d'Histoire Naturelle, Paris, France
- Department of Aquaculture, Center of Excellence for Marine Bioenvironment and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Olivier Kah
- Team NEED, Institut de Recherche en Santé, Environnement et Travail, INSERM U1085, IFR140, Université de Rennes 1, Rennes, France
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41
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Zhu Y, Murakami F. Chemokine CXCL12 and its receptors in the developing central nervous system: emerging themes and future perspectives. Dev Neurobiol 2012; 72:1349-62. [PMID: 22689506 DOI: 10.1002/dneu.22041] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 05/25/2012] [Accepted: 06/01/2012] [Indexed: 01/24/2023]
Abstract
Homeostatic chemokine CXCL12 (also known as SDF-1) and its receptor CXCR4 are indispensable for the normal development of the nervous system. This chemokine system plays a plethora of functions in numerous neural developmental processes, from which the underlying molecular and cellular mechanisms are beginning to be unravelled. Recent identification of CXCR7 as a second receptor for CXCL12 provides opportunities to gain deeper insights into how CXCL12 operates in the nervous system. Here, we review the diverse roles of CXCL12 in the developing central nervous system, summarize the recent progress in uncovering CXCR7 functions, and discuss the emerging common themes from these works and future perspectives.
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Affiliation(s)
- Yan Zhu
- Graduate School of Frontier Biosciences, Osaka University, Yamadaoka 1-3, Suita, Osaka 565-0871, Japan.
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42
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Reaux-Le Goazigo A, Rivat C, Kitabgi P, Pohl M, Melik Parsadaniantz S. Cellular and subcellular localization of CXCL12 and CXCR4 in rat nociceptive structures: physiological relevance. Eur J Neurosci 2012; 36:2619-31. [PMID: 22694179 DOI: 10.1111/j.1460-9568.2012.08179.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Initial studies implicated the chemokine CXC motif ligand 12 (CXCL12) and its cognate CXC motif receptor 4 (CXCR4) in pain modulation. However, there has been no description of the distribution, transport and axonal sorting of CXCL12 and CXCR4 in rat nociceptive structures, and their direct participation in nociception modulation has not been demonstrated. Here, we report that acute intrathecal administration of CXCL12 induced mechanical hypersensitivity in naive rats. This effect was prevented by a CXCR4-neutralizing antibody. To determine the morphological basis of this behavioural response, we used light and electron microscopic immunohistochemistry to map CXCL12- and CXCR4-immunoreactive elements in dorsal root ganglia, lumbar spinal cord, sciatic nerve and skin. Light microscopy analysis revealed CXCL12 and CXCR4 immunoreactivity in calcitonin gene related peptide-containing peptidergic primary sensory neurons, which were both conveyed to central and peripheral sensory nerve terminals. Electron microscopy clearly demonstrated CXCL12 and CXCR4 immunoreactivity in primary sensory nerve terminals in the dorsal horn; both were sorted into small clear vesicles and large dense-core vesicles. This suggests that CXCL12 and CXCR4 are trafficked from nerve cell bodies to the dorsal horn. Double immunogold labelling for CXCL12 and calcitonin gene related peptide revealed partial vesicular colocalization in axonal terminals. We report, for the first time, that CXCR4 receptors are mainly located on the neuronal plasma membrane, where they are present at pre-synaptic and post-synaptic sites of central terminals. Receptor inactivation experiments, behavioural studies and morphological analyses provide strong evidence that the CXCL12/CXCR4 system is involved in modulation of nociceptive signalling.
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Affiliation(s)
- Annabelle Reaux-Le Goazigo
- Centre de recherche de l'Institut Cerveau Moelle (CrICM), UMR S 975 INSERM-UMR 7225 CNRS-UPMC, Université Pierre et Marie Curie, Faculty of Medicine Pitié Salpêtrière, 91 Boulevard de l'Hôpital, 75013 Paris, France.
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43
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Bye N, Turnley AM, Morganti-Kossmann MC. Inflammatory regulators of redirected neural migration in the injured brain. Neurosignals 2012; 20:132-46. [PMID: 22456466 DOI: 10.1159/000336542] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 01/16/2012] [Indexed: 01/19/2023] Open
Abstract
Brain injury following stroke or trauma induces the migration of neuroblasts derived from subventricular zone neural precursor cells (NPCs) towards the damaged tissue, where they then have the potential to contribute to repair. Enhancing the recruitment of new cells thus presents an enticing prospect for the development of new therapeutic approaches to treat brain injury; to this end, an understanding of the factors regulating this process is required. During the neuroinflammatory response to ischemic and traumatic brain injuries, a plethora of pro- and anti-inflammatory cytokines, chemokines and growth factors are released in the damaged tissue, and recent work indicates that a variety of these are able to influence injury-induced migration. In this review, we will discuss the contribution of specific chemokines and growth factors towards stimulating NPC migration in the injured brain.
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Affiliation(s)
- Nicole Bye
- National Trauma Research Institute, Alfred Hospital, Department of Surgery, Monash University, Melbourne, Vic, Australia.
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44
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Kizil C, Kaslin J, Kroehne V, Brand M. Adult neurogenesis and brain regeneration in zebrafish. Dev Neurobiol 2012; 72:429-61. [DOI: 10.1002/dneu.20918] [Citation(s) in RCA: 249] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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45
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Mithal DS, Banisadr G, Miller RJ. CXCL12 signaling in the development of the nervous system. J Neuroimmune Pharmacol 2012; 7:820-34. [PMID: 22270883 DOI: 10.1007/s11481-011-9336-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 12/14/2011] [Indexed: 11/30/2022]
Abstract
Chemokines are small, secreted proteins that have been shown to be important regulators of leukocyte trafficking and inflammation. All the known effects of chemokines are transduced by action at a family of G protein coupled receptors. Two of these receptors, CCR5 and CXCR4, are also known to be the major cellular receptors for HIV-1. Consideration of the evolution of the chemokine family has demonstrated that the chemokine Stromal cell Derived Factor-1 or SDF1 (CXCL12) and its receptor CXCR4 are the most ancient members of the family and existed in animals prior to the development of a sophisticated immune system. Thus, it appears that the original function of chemokine signaling was in the regulation of stem cell trafficking and development. CXCR4 signaling is important in the development of many tissues including the nervous system. Here we discuss the manner in which CXCR4 signaling can regulate the development of different structures in the central and peripheral nervous systems and the different strategies employed to achieve these effects.
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Affiliation(s)
- Divakar S Mithal
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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46
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Diotel N, Do Rego JL, Anglade I, Vaillant C, Pellegrini E, Vaudry H, Kah O. The brain of teleost fish, a source, and a target of sexual steroids. Front Neurosci 2011; 5:137. [PMID: 22194715 PMCID: PMC3242406 DOI: 10.3389/fnins.2011.00137] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 11/30/2011] [Indexed: 11/13/2022] Open
Abstract
Neurosteroids are defined as steroids de novo synthesized in the central nervous system. While the production of neurosteroids is well documented in mammals and amphibians, there is less information about teleosts, the largest group of fish. Teleosts have long been known for their high brain aromatase and 5α-reductase activities, but recent data now document the capacity of the fish brain to produce a large variety of sex steroids. This article aims at reviewing the available information regarding expression and/or activity of the main steroidogenic enzymes in the brain of fish. In addition, the distribution of estrogen, androgen, and progesterone nuclear receptors is documented in relation with the potential sites of production of neurosteroids. Interestingly, radial glial cells acting as neuronal progenitors, appear to be a potential source of neurosteroids, but also a target for centrally and/or peripherally produced steroids.
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Affiliation(s)
- Nicolas Diotel
- Neurogenesis and Œstrogens, UMR CNRS 6026, IFR 140, Université de Rennes 1 Rennes, France
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47
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Diotel N, Servili A, Gueguen MM, Mironov S, Pellegrini E, Vaillant C, Zhu Y, Kah O, Anglade I. Nuclear progesterone receptors are up-regulated by estrogens in neurons and radial glial progenitors in the brain of zebrafish. PLoS One 2011; 6:e28375. [PMID: 22140581 PMCID: PMC3227669 DOI: 10.1371/journal.pone.0028375] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 11/07/2011] [Indexed: 12/02/2022] Open
Abstract
In rodents, there is increasing evidence that nuclear progesterone receptors are transiently expressed in many regions of the developing brain, notably outside the hypothalamus. This suggests that progesterone and/or its metabolites could be involved in functions not related to reproduction, particularly in neurodevelopment. In this context, the adult fish brain is of particular interest, as it exhibits constant growth and high neurogenic activity that is supported by radial glia progenitors. However, although synthesis of neuroprogestagens has been documented recently in the brain of zebrafish, information on the presence of progesterone receptors is very limited. In zebrafish, a single nuclear progesterone receptor (pgr) has been cloned and characterized. Here, we demonstrate that this pgr is widely distributed in all regions of the zebrafish brain. Interestingly, we show that Pgr is strongly expressed in radial glial cells and more weakly in neurons. Finally, we present evidence, based on quantitative PCR and immunohistochemistry, that nuclear progesterone receptor mRNA and proteins are upregulated by estrogens in the brain of adult zebrafish. These data document for the first time the finding that radial glial cells are preferential targets for peripheral progestagens and/or neuroprogestagens. Given the crucial roles of radial glial cells in adult neurogenesis, the potential effects of progestagens on their activity and the fate of daughter cells require thorough investigation.
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Affiliation(s)
- Nicolas Diotel
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
| | - Arianna Servili
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
| | | | - Svetlana Mironov
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
| | - Elisabeth Pellegrini
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
| | - Colette Vaillant
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
| | - Yong Zhu
- Department of Biology, East Carolina University, Greenville, North Carolina, United States of America
| | - Olivier Kah
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
- * E-mail:
| | - Isabelle Anglade
- Neurogenesis and Oestrogens, UMR CNRS 6026, IFR140, Université de Rennes 1, Rennes, France
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48
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49
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D'Amico LA, Boujard D, Coumailleau P. Proliferation, migration and differentiation in juvenile and adult Xenopus laevis brains. Brain Res 2011; 1405:31-48. [DOI: 10.1016/j.brainres.2011.06.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 06/10/2011] [Accepted: 06/11/2011] [Indexed: 11/25/2022]
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50
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Diotel N, Do Rego JL, Anglade I, Vaillant C, Pellegrini E, Gueguen MM, Mironov S, Vaudry H, Kah O. Activity and expression of steroidogenic enzymes in the brain of adult zebrafish. Eur J Neurosci 2011; 34:45-56. [DOI: 10.1111/j.1460-9568.2011.07731.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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