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López Lasaosa F, Zhou Y, Song J, He Y, Cui Y, Bolea Bailo RM, Gu Z. Nature-Inspired Scarless Healing: Guiding Biomaterials Design for Advanced Therapies. TISSUE ENGINEERING. PART B, REVIEWS 2024; 30:371-384. [PMID: 38019051 DOI: 10.1089/ten.teb.2023.0224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The use of biomaterials in the treatment of skin wounds has been steadily increasing over the last two decades. The key to the successful application of biomaterials in scar reduction is the up-to-date knowledge of the actors involved in accelerated healing and the cellular factors that can be implemented in bioinspired materials. Natural models of scarless healing such as oral mucosa, fetal skin and the skin of amphibians, fish, and reptiles are a great source of information. By investigating their microenvironments, cellular factors, and inflammatory self-regulatory systems, a general model of scarless healing can be defined. This review introduces the basic and current concepts of skin wound healing and focuses on providing a detailed overview of the main processes of accelerated healing without scarring. The article outlines the common features and key points that develop and promote scar-free healing. The tissues and healing processes of the selected natural models are described individually (tissue organization, structural components, ratios of cellular factors such as Collagen and transforming growth factor and their mechanisms of regulation of inflammation and scar overgrowth). A comparative work of each natural model concerning healing in human skin is included in the discussion. Finally, the patterns identified through the analysis of each model and their differences from normal healing are presented to facilitate the knowledge for the implementation of new treatments.
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Affiliation(s)
- Fernando López Lasaosa
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, PR China
- Department of Animal Pathology, Veterinary Faculty, Aragón Agricultural Institute (IA2), University of Zaragoza (CITA), Zaragoza, Spain
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, NJTech-BARTY Joint Research Center for Innovative Medical Technology, Suqian Advanced Materials Industry Technology Innovation Center, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, PR China
- Research and Development Department, Fertinagro Biotech, Teruel, Spain
| | - Yin Zhou
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, PR China
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, NJTech-BARTY Joint Research Center for Innovative Medical Technology, Suqian Advanced Materials Industry Technology Innovation Center, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, PR China
| | - Jiliang Song
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, PR China
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, NJTech-BARTY Joint Research Center for Innovative Medical Technology, Suqian Advanced Materials Industry Technology Innovation Center, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, PR China
| | - Yiyan He
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, PR China
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, NJTech-BARTY Joint Research Center for Innovative Medical Technology, Suqian Advanced Materials Industry Technology Innovation Center, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, PR China
| | - Yuwen Cui
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, PR China
- Department of Animal Pathology, Veterinary Faculty, Aragón Agricultural Institute (IA2), University of Zaragoza (CITA), Zaragoza, Spain
| | - Rosa María Bolea Bailo
- Department of Animal Pathology, Veterinary Faculty, Aragón Agricultural Institute (IA2), University of Zaragoza (CITA), Zaragoza, Spain
| | - Zhongwei Gu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, PR China
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, NJTech-BARTY Joint Research Center for Innovative Medical Technology, Suqian Advanced Materials Industry Technology Innovation Center, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, PR China
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, Huaxi MR Research Center (HMRRC), West China Hospital, Sichuan University, Chengdu, PR China
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Cano-Martínez A, Rubio-Ruiz ME, Guarner-Lans V. Homeostasis and evolution in relation to regeneration and repair. J Physiol 2024; 602:2627-2648. [PMID: 38781025 DOI: 10.1113/jp284426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
Homeostasis constitutes a key concept in physiology and refers to self-regulating processes that maintain internal stability when adjusting to changing external conditions. It diminishes internal entropy constituting a driving force behind evolution. Natural selection might act on homeostatic regulatory mechanisms and control mechanisms including homeodynamics, allostasis, hormesis and homeorhesis, where different stable stationary states are reached. Regeneration is under homeostatic control through hormesis. Damage to tissues initiates a response to restore the impaired equilibrium caused by mild stress using cell proliferation, cell differentiation and cell death to recover structure and function. Repair is a homeorhetic change leading to a new stable stationary state with decreased functionality and fibrotic scarring without reconstruction of the 3-D pattern. Mechanisms determining entrance of the tissue or organ to regeneration or repair include the balance between innate and adaptive immune cells in relation to cell plasticity and stromal stem cell responses, and redox balance. The regenerative and reparative capacities vary in different species, distinct tissues and organs, and at different stages of development including ageing. Many cell signals and pathways play crucial roles determining regeneration or repair by regulating protein synthesis, cellular growth, inflammation, proliferation, autophagy, lysosomal function, metabolism and metalloproteinase cell signalling. Attempts to favour the entrance of damaged tissues to regeneration in those with low proliferative rates have been made; however, there are evolutionary constraint mechanisms leading to poor proliferation of stem cells in unfavourable environments or tumour development. More research is required to better understand the regulatory processes of these mechanisms.
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Affiliation(s)
- Agustina Cano-Martínez
- Department of Physiology, Instituto Nacional de Cardiología Ignacio Chávez, México, México
| | | | - Verónica Guarner-Lans
- Department of Physiology, Instituto Nacional de Cardiología Ignacio Chávez, México, México
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Zhang XS, Wei L, Zhang W, Zhang FX, Li L, Li L, Wen Y, Zhang JH, Liu S, Yuan D, Liu Y, Ren C, Li S. ERK-activated CK-2 triggers blastema formation during appendage regeneration. SCIENCE ADVANCES 2024; 10:eadk8331. [PMID: 38507478 PMCID: PMC10954200 DOI: 10.1126/sciadv.adk8331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/14/2024] [Indexed: 03/22/2024]
Abstract
Appendage regeneration relies on the formation of blastema, a heterogeneous cellular structure formed at the injury site. However, little is known about the early injury-activated signaling pathways that trigger blastema formation during appendage regeneration. Here, we provide compelling evidence that the extracellular signal-regulated kinase (ERK)-activated casein kinase 2 (CK-2), which has not been previously implicated in appendage regeneration, triggers blastema formation during leg regeneration in the American cockroach, Periplaneta americana. After amputation, CK-2 undergoes rapid activation through ERK-induced phosphorylation within blastema cells. RNAi knockdown of CK-2 severely impairs blastema formation by repressing cell proliferation through down-regulating mitosis-related genes. Evolutionarily, the regenerative role of CK-2 is conserved in zebrafish caudal fin regeneration via promoting blastema cell proliferation. Together, we find and demonstrate that the ERK-activated CK-2 triggers blastema formation in both cockroach and zebrafish, helping explore initiation factors during appendage regeneration.
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Affiliation(s)
- Xiao-Shuai Zhang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Lin Wei
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Wei Zhang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Fei-Xue Zhang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Lin Li
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Liang Li
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Yejie Wen
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Jia-Hui Zhang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Suning Liu
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
- Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou 514779, China
| | - Dongwei Yuan
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
- Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou 514779, China
| | - Yanmei Liu
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Chonghua Ren
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
- Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou 514779, China
| | - Sheng Li
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou 510631, China
- Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou 514779, China
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Cavalcanti DMLP, Teófilo TS, D Rodrigues T, Barbosa TNS, Fontenele-Neto JD. Thimet oligopeptidase (THOP 1) distribution in cane toad (Bufo Marinus, Linnaeus, 1758) brain. J Chem Neuroanat 2023; 133:102345. [PMID: 37778734 DOI: 10.1016/j.jchemneu.2023.102345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/03/2023]
Abstract
Thimet oligopeptides (THOP 1) is a metal-dependent peptidase involved in the metabolism of neuropeptides and the presentation of peptides via MHC-1. It has been shown to play a role in the regulation of protein-protein interactions and the metabolism of intracellular peptides. THOP 1 is associated with important biological processes such as metabolism and neurodegenerative diseases, among others. The objective of this study is to elucidate the distribution of THOP 1 in the Bufo marinus brain. The analysis of THOP 1 amino acid sequences indicates that they have been conserved throughout evolution, with significant homology observed across various phyla. When comparing amphibians with other species, more than 70% identity can be identified. Immunohistochemistry analysis of the toad's brain has demonstrated that the enzyme has a ubiquitous distribution, consistent with previous findings in mammals. THOP 1 can be found in important areas of the brain, such as bulb, thalamic nuclei, striatum, hypothalamus, and among others. Nonetheless, THOP 1 is consistently localized within the nucleus, a pattern also observed in the rat brain. Therefore, based on these results, the toad appears to be an excellent model for studying the general biology of THOP 1, given the substantial homology of this enzyme with mammals and its similarity in distribution within the brain.
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Affiliation(s)
- Diogo M L P Cavalcanti
- Laboratory of Tissue and Development Biology, Medicine College, Department of Health Science, Center for Biological and Health Sciences, Universidade Federal Rural do Semiárido - UFERSA, Brazil.
| | - Tiago S Teófilo
- Laboratory of Tissue and Development Biology, Medicine College, Department of Health Science, Center for Biological and Health Sciences, Universidade Federal Rural do Semiárido - UFERSA, Brazil
| | - Tayline D Rodrigues
- Master's Degree Students, Multicentric Graduate Program in the area of Biochemistry and Molecular Biology (PMBqBM), Universidade do Estado do Rio Grande do Norte - UERN, Brazil
| | - Tayssa N S Barbosa
- Master's Degree Students, Multicentric Graduate Program in the area of Biochemistry and Molecular Biology (PMBqBM), Universidade do Estado do Rio Grande do Norte - UERN, Brazil
| | - José D Fontenele-Neto
- Laboratory of Tissue and Development Biology, Veterinary Medicine College, Department of Animal Science, Center for Biological and Health Sciences, Universidade Federal Rural do Semiárido - UFERSA, Brazil
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5
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Neuromedin U regulates food intake of Siberian sturgeon through the modulation of central and peripheral appetite factors. Br J Nutr 2023; 129:904-918. [PMID: 35658963 DOI: 10.1017/s0007114522001696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Neuromedin U (NMU) has a critical function on the regulation of food intake in mammals, while the information is little in teleost. To investigate the function of NMU on appetite regulation of Siberian sturgeon (Acipenser baerii), this study first cloned nmu cDNA sequence that encoded 154 amino acids including NMU-25 peptide. Besides, the results showed that nmu mRNA was widely distributed in various tissues especially in the hypothalamus and telencephalon. The results of nutritional status (pre-feeding and post-feeding, fasting and re-feeding) experiments showed that nmu mRNA expression was significantly decreased at 1 and 3 h after feeding in different brain regions. Similarly, after feeding, the expression of nmu significantly decreased in peripheral tissues. Moreover, nmu expression in the hypothalamus was significantly increased after fasting 1 d, but decreased after fasting 17 d, which was significantly reversed after re-feeding. However, other brain regions like telencephalon and peripheral tissues like oesophagus, intestinum valvula and liver have different change patterns. Further study showed that acute i.c.v. and i.p. injection of NMU and chronic i.p. injection of NMU significantly reduced the food intake in a dose-dependent mode. In addition, the expressions of several critical appetite factors (nmu, aplein, cart, cck, ghrelin, npy, nucb2, pyy and ucn3) were significantly affected by acute NMU-25 administration in the hypothalamus, intestinum valvula and liver. These results indicate that NMU-25 has the anorexigenic function on food intake by affecting different appetite factors in Siberian sturgeon, which provides a foundation for further exploring the appetite regulation networks in fish.
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Li J, Godoy MI, Zhang AJ, Diamante G, Ahn IS, Cebrian-Silla A, Alvarez-Buylla A, Yang X, Novitch BG, Zhang Y. Prdm16 and Vcam1 regulate the postnatal disappearance of embryonic radial glia and the ending of cortical neurogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.14.528567. [PMID: 36824905 PMCID: PMC9949035 DOI: 10.1101/2023.02.14.528567] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Embryonic neural stem cells (NSCs, i.e., radial glia) in the ventricular-subventricular zone (V-SVZ) generate the majority of neurons and glia in the forebrain. Postnatally, embryonic radial glia disappear and a subpopulation of radial glia transition into adult NSCs. As this transition occurs, widespread neurogenesis in brain regions such as the cerebral cortex ends. The mechanisms that regulate the postnatal disappearance of radial glia and the ending of embryonic neurogenesis remain poorly understood. Here, we show that PR domain-containing 16 (Prdm16) promotes the disappearance of radial glia and the ending of neurogenesis in the cerebral cortex. Genetic deletion of Prdm16 from NSCs leads to the persistence of radial glia in the adult V-SVZ and prolonged postnatal cortical neurogenesis. Mechanistically, Prdm16 induces the postnatal reduction in Vascular Cell Adhesion Molecule 1 (Vcam1). The postnatal disappearance of radial glia and the ending of cortical neurogenesis occur normally in Prdm16-Vcam1 double conditional knockout mice. These observations reveal novel molecular regulators of the postnatal disappearance of radial glia and the ending of embryonic neurogenesis, filling a key knowledge gap in NSC biology.
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Affiliation(s)
- Jiwen Li
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), USA
| | - Marlesa I. Godoy
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), USA
| | - Alice J. Zhang
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), USA
| | | | - In Sook Ahn
- Department of Integrative Biology and Physiology, UCLA
| | - Arantxa Cebrian-Silla
- Eli and Edythe Broad Institute for Stem Cell Research and Regeneration Medicine, Department of Neurological Surgery, University of California, San Francisco, San Francisco, USA
| | - Arturo Alvarez-Buylla
- Eli and Edythe Broad Institute for Stem Cell Research and Regeneration Medicine, Department of Neurological Surgery, University of California, San Francisco, San Francisco, USA
| | - Xia Yang
- Department of Integrative Biology and Physiology, UCLA
- Brain Research Institute at UCLA
- Institute for Quantitative and Computational Biosciences at UCLA
- Molecular Biology Institute at UCLA
| | - Bennett G. Novitch
- Brain Research Institute at UCLA
- Molecular Biology Institute at UCLA
- Department of Neurobiology, UCLA
- Intellectual and Developmental Disabilities Research Center at UCLA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA
| | - Ye Zhang
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), USA
- Brain Research Institute at UCLA
- Molecular Biology Institute at UCLA
- Intellectual and Developmental Disabilities Research Center at UCLA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA
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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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8
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Costa G, Ribeiro FF, Sebastião AM, Muir EM, Vaz SH. Bridging the gap of axonal regeneration in the central nervous system: A state of the art review on central axonal regeneration. Front Neurosci 2022; 16:1003145. [PMID: 36440273 PMCID: PMC9682039 DOI: 10.3389/fnins.2022.1003145] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/19/2022] [Indexed: 08/26/2023] Open
Abstract
Neuronal regeneration in the central nervous system (CNS) is an important field of research with relevance to all types of neuronal injuries, including neurodegenerative diseases. The glial scar is a result of the astrocyte response to CNS injury. It is made up of many components creating a complex environment in which astrocytes play various key roles. The glial scar is heterogeneous, diverse and its composition depends upon the injury type and location. The heterogeneity of the glial scar observed in different situations of CNS damage and the consequent implications for axon regeneration have not been reviewed in depth. The gap in this knowledge will be addressed in this review which will also focus on our current understanding of central axonal regeneration and the molecular mechanisms involved. The multifactorial context of CNS regeneration is discussed, and we review newly identified roles for components previously thought to solely play an inhibitory role in central regeneration: astrocytes and p75NTR and discuss their potential and relevance for deciding therapeutic interventions. The article ends with a comprehensive review of promising new therapeutic targets identified for axonal regeneration in CNS and a discussion of novel ways of looking at therapeutic interventions for several brain diseases and injuries.
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Affiliation(s)
- Gonçalo Costa
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Filipa F. Ribeiro
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Ana M. Sebastião
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Elizabeth M. Muir
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Sandra H. Vaz
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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9
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Czarkwiani A, Taylor J, Oliveri P. Neurogenesis during Brittle Star Arm Regeneration Is Characterised by a Conserved Set of Key Developmental Genes. BIOLOGY 2022; 11:biology11091360. [PMID: 36138839 PMCID: PMC9495562 DOI: 10.3390/biology11091360] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary Injuries to the central nervous system most often lead to irreversible damage in humans. Brittle stars are marine animals related to sea stars and sea urchins, and are one of our closest evolutionary relatives among invertebrates. Extraordinarily, they can perfectly regenerate their nerves even after completely severing the nerve cord after arm amputation. Understanding what genes and cellular mechanisms are used for this natural repair process in the brittle star might lead to new insights to guide strategies for therapeutics to improve outcomes for central nervous system injuries in humans. Abstract Neural regeneration is very limited in humans but extremely efficient in echinoderms. The brittle star Amphiura filiformis can regenerate both components of its central nervous system as well as the peripheral system, and understanding the molecular mechanisms underlying this ability is key for evolutionary comparisons not only within the echinoderm group, but also wider within deuterostomes. Here we characterise the neural regeneration of this brittle star using a combination of immunohistochemistry, in situ hybridization and Nanostring nCounter to determine the spatial and temporal expression of evolutionary conserved neural genes. We find that key genes crucial for the embryonic development of the nervous system in sea urchins and other animals are also expressed in the regenerating nervous system of the adult brittle star in a hierarchic and spatio-temporally restricted manner.
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Affiliation(s)
- Anna Czarkwiani
- Department of Genetics, Evolution and Environment, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität (TU) Dresden, 01307 Dresden, Germany
- Correspondence: (A.C.); (P.O.)
| | - Jack Taylor
- Department of Genetics, Evolution and Environment, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK
| | - Paola Oliveri
- Department of Genetics, Evolution and Environment, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK
- Center for Life’s Origins and Evolution, University College London, London WC1E 6BT, UK
- Correspondence: (A.C.); (P.O.)
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10
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Wei X, Fu S, Li H, Liu Y, Wang S, Feng W, Yang Y, Liu X, Zeng YY, Cheng M, Lai Y, Qiu X, Wu L, Zhang N, Jiang Y, Xu J, Su X, Peng C, Han L, Lou WPK, Liu C, Yuan Y, Ma K, Yang T, Pan X, Gao S, Chen A, Esteban MA, Yang H, Wang J, Fan G, Liu L, Chen L, Xu X, Fei JF, Gu Y. Single-cell Stereo-seq reveals induced progenitor cells involved in axolotl brain regeneration. Science 2022; 377:eabp9444. [PMID: 36048929 DOI: 10.1126/science.abp9444] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The molecular mechanism underlying brain regeneration in vertebrates remains elusive. We performed spatial enhanced resolution omics sequencing (Stereo-seq) to capture spatially resolved single-cell transcriptomes of axolotl telencephalon sections during development and regeneration. Annotated cell types exhibited distinct spatial distribution, molecular features, and functions. We identified an injury-induced ependymoglial cell cluster at the wound site as a progenitor cell population for the potential replenishment of lost neurons, through a cell state transition process resembling neurogenesis during development. Transcriptome comparisons indicated that these induced cells may originate from local resident ependymoglial cells. We further uncovered spatially defined neurons at the lesion site that may regress to an immature neuron-like state. Our work establishes spatial transcriptome profiles of an anamniote tetrapod brain and decodes potential neurogenesis from ependymoglial cells for development and regeneration, thus providing mechanistic insights into vertebrate brain regeneration.
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Affiliation(s)
- Xiaoyu Wei
- BGI-Hangzhou, Hangzhou 310012, China.,BGI-Shenzhen, Shenzhen 518103, China
| | - Sulei Fu
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.,Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Hanbo Li
- BGI-Shenzhen, Shenzhen 518103, China.,BGI-Qingdao, Qingdao 266555, China.,Lars Bolund Institute of Regenerative Medicine, Qingdao-Europe Advanced Institute for Life Sciences, BGI-Qingdao, Qingdao 266555, China
| | - Yang Liu
- BGI-Shenzhen, Shenzhen 518103, China
| | - Shuai Wang
- BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weimin Feng
- BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunzhi Yang
- BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | | | - Yan-Yun Zeng
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.,Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Mengnan Cheng
- BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiwei Lai
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Xiaojie Qiu
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.,Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Liang Wu
- BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Yujia Jiang
- BGI-Shenzhen, Shenzhen 518103, China.,BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Jiangshan Xu
- BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Cheng Peng
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.,Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Lei Han
- BGI-Shenzhen, Shenzhen 518103, China.,Shenzhen Key Laboratory of Single-Cell Omics, BGI-Shenzhen, Shenzhen 518120, China.,Shenzhen Bay Laboratory, Shenzhen 518000, China
| | - Wilson Pak-Kin Lou
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.,Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Chuanyu Liu
- BGI-Shenzhen, Shenzhen 518103, China.,Shenzhen Bay Laboratory, Shenzhen 518000, China
| | - Yue Yuan
- BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Tao Yang
- BGI-Shenzhen, Shenzhen 518103, China
| | - Xiangyu Pan
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | | | - Ao Chen
- BGI-Shenzhen, Shenzhen 518103, China.,Department of Biology, University of Copenhagen, Copenhagen DK-2200, Denmark
| | - Miguel A Esteban
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Institute of Stem Cells and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Huanming Yang
- BGI-Shenzhen, Shenzhen 518103, China.,James D. Watson Institute of Genome Sciences, Hangzhou 310058, China
| | - Jian Wang
- BGI-Shenzhen, Shenzhen 518103, China.,James D. Watson Institute of Genome Sciences, Hangzhou 310058, China
| | | | - Longqi Liu
- BGI-Hangzhou, Hangzhou 310012, China.,BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.,Shenzhen Bay Laboratory, Shenzhen 518000, China
| | - Liang Chen
- Hubei Key Laboratory of Cell Homeostasis, RNA Institute, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Xun Xu
- BGI-Shenzhen, Shenzhen 518103, China.,Guangdong Provincial Key Laboratory of Genome Read and Write, BGI-Shenzhen, Shenzhen 518120, China
| | - Ji-Feng Fei
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Ying Gu
- BGI-Hangzhou, Hangzhou 310012, China.,BGI-Shenzhen, Shenzhen 518103, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.,Guangdong Provincial Key Laboratory of Genome Read and Write, BGI-Shenzhen, Shenzhen 518120, China
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11
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A Focal Impact Model of Traumatic Brain Injury in Xenopus Tadpoles Reveals Behavioral Alterations, Neuroinflammation, and an Astroglial Response. Int J Mol Sci 2022; 23:ijms23147578. [PMID: 35886924 PMCID: PMC9323330 DOI: 10.3390/ijms23147578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 11/18/2022] Open
Abstract
Traumatic Brain Injury (TBI) is a global driver of disability, and we currently lack effective therapies to promote neural repair and recovery. TBI is characterized by an initial insult, followed by a secondary injury cascade, including inflammation, excitotoxicity, and glial cellular response. This cascade incorporates molecular mechanisms that represent potential targets of therapeutic intervention. In this study, we investigate the response to focal impact injury to the optic tectum of Xenopus laevis tadpoles. This injury disrupts the blood-brain barrier, causing edema, and produces deficits in visually-driven behaviors which are resolved within one week. Within 3 h, injured brains show a dramatic transcriptional activation of inflammatory cytokines, upregulation of genes associated with inflammation, and recruitment of microglia to the injury site and surrounding tissue. Shortly afterward, astrocytes undergo morphological alterations and accumulate near the injury site, and these changes persist for at least 48 h following injury. Genes associated with astrocyte reactivity and neuroprotective functions also show elevated levels of expression following injury. Since our results demonstrate that the response to focal impact injury in Xenopus resembles the cellular alterations observed in rodents and other mammalian models, the Xenopus tadpole offers a new, scalable vertebrate model for TBI.
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12
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Blackshaw S. Why Has the Ability to Regenerate Following CNS Injury Been Repeatedly Lost Over the Course of Evolution? Front Neurosci 2022; 16:831062. [PMID: 35185460 PMCID: PMC8854365 DOI: 10.3389/fnins.2022.831062] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/13/2022] [Indexed: 12/30/2022] Open
Abstract
While many vertebrates can regenerate both damaged neurons and severed axons in the central nervous system (CNS) following injury, others, including all birds and mammals, have lost this ability for reasons that are still unclear. The repeated evolutionary loss of regenerative competence seems counterintuitive, and any explanation must account for the fact that regenerative competence is lost in both cold-blooded and all warm-blooded clades, that both injury-induced neurogenesis and axonal regeneration tend to be lost in tandem, and that mammals have evolved dedicated gene regulatory networks to inhibit injury-induced glia-to-neuron reprogramming. Here, different hypotheses that have been proposed to account for evolutionary loss of regenerative competence are discussed in the light of new insights obtained into molecular mechanisms that control regeneration in the central nervous system. These include pleiotropic effects of continuous growth, enhanced thyroid hormone signaling, prevention of neoplasia, and improved memory consolidation. Recent evidence suggests that the most compelling hypothesis, however, may be selection for greater resistance to the spread of intra-CNS infections, which has led to both enhanced reactive gliosis and a loss of injury-induced neurogenesis and axonal regeneration. Means of testing these hypotheses, and additional data that are urgently needed to better understand the evolutionary pressures and mechanisms driving loss of regenerative competence, are also discussed.
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Affiliation(s)
- Seth Blackshaw
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- *Correspondence: Seth Blackshaw,
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13
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Cruz-Méndez JS, Herrera-Sánchez MP, Céspedes-Rubio ÁE, Rondón-Barragán IS. Molecular characterization of myelin basic protein a (mbpa) gene from red-bellied pacu (Piaractus brachypomus). JOURNAL OF GENETIC ENGINEERING AND BIOTECHNOLOGY 2022; 20:8. [PMID: 35024999 PMCID: PMC8758815 DOI: 10.1186/s43141-022-00296-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/04/2022] [Indexed: 12/18/2022]
Abstract
Background Myelin basic protein (MBP) is one of the most important structural components of the myelin sheaths in both central and peripheral nervous systems. MBP has several functions including organization of the myelin membranes, reorganization of the cytoskeleton during the myelination process, and interaction with the SH3 domain in signaling pathways. Likewise, MBP has been proposed as a marker of demyelination in traumatic brain injury and chemical exposure. Methods The aim of this study was to molecularly characterize the myelin basic protein a (mbpa) gene from the Colombian native fish, red-bellied pacu, Piaractus brachypomus. Bioinformatic tools were used to identify the phylogenetic relationships, physicochemical characteristics, exons, intrinsically disordered regions, and conserved domains of the protein. Gene expression was assessed by qPCR in three models corresponding to sublethal chlorpyrifos exposure, acute brain injury, and anesthesia experiments. Results mbpa complete open reading frame was identified with 414 nucleotides distributed in 7 exons that encode 137 amino acids. MBPa was recognized as belonging to the myelin basic protein family, closely related with orthologous proteins, and two intrinsically disordered regions were established within the sequence. Gene expression of mbpa was upregulated in the optic chiasm of the chlorpyrifos exposed fish in contrast to the control group. Conclusions The physicochemical computed features agree with the biological functions of MBP, and basal gene expression was according to the anatomical distribution in the tissues analyzed. This study is the first molecular characterization of mbpa from the native species Piaractus brachypomus.
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Affiliation(s)
- Juan Sebastian Cruz-Méndez
- Research Group in Immunobiology and Pathogenesis, Laboratory of Immunology and Molecular Biology, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, 730006299, Ibague, Tolima, Colombia
| | - María Paula Herrera-Sánchez
- Research Group in Immunobiology and Pathogenesis, Laboratory of Immunology and Molecular Biology, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, 730006299, Ibague, Tolima, Colombia
| | - Ángel Enrique Céspedes-Rubio
- Research Group in Neurodegenerative Diseases, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, 730006299, Ibague, Tolima, Colombia
| | - Iang Schroniltgen Rondón-Barragán
- Research Group in Immunobiology and Pathogenesis, Laboratory of Immunology and Molecular Biology, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, 730006299, Ibague, Tolima, Colombia. .,Research Group in Neurodegenerative Diseases, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, 730006299, Ibague, Tolima, Colombia. .,Laboratory of Immunology and Molecular Biology, Department of Animal Health, Faculty of Veterinary Medicine and Zootechnics, University of Tolima, Ibague, 730006299, Colombia.
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14
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Westfall AK, Perry BW, Kamal AHM, Hales NR, Kay JC, Sapkota M, Schield DR, Pellegrino MW, Secor SM, Chowdhury SM, Castoe TA. Identification of an integrated stress and growth response signaling switch that directs vertebrate intestinal regeneration. BMC Genomics 2022; 23:6. [PMID: 34983392 PMCID: PMC8725436 DOI: 10.1186/s12864-021-08226-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 12/01/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Snakes exhibit extreme intestinal regeneration following months-long fasts that involves unparalleled increases in metabolism, function, and tissue growth, but the specific molecular control of this process is unknown. Understanding the mechanisms that coordinate these regenerative phenotypes provides valuable opportunities to understand critical pathways that may control vertebrate regeneration and novel perspectives on vertebrate regenerative capacities. RESULTS Here, we integrate a comprehensive set of phenotypic, transcriptomic, proteomic, and phosphoproteomic data from boa constrictors to identify the mechanisms that orchestrate shifts in metabolism, nutrient uptake, and cellular stress to direct phases of the regenerative response. We identify specific temporal patterns of metabolic, stress response, and growth pathway activation that direct regeneration and provide evidence for multiple key central regulatory molecules kinases that integrate these signals, including major conserved pathways like mTOR signaling and the unfolded protein response. CONCLUSION Collectively, our results identify a novel switch-like role of stress responses in intestinal regeneration that forms a primary regulatory hub facilitating organ regeneration and could point to potential pathways to understand regenerative capacity in vertebrates.
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Affiliation(s)
- Aundrea K Westfall
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Blair W Perry
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Abu H M Kamal
- Advanced Technology Cores, Baylor College of Medicine, Houston, TX, USA.,Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Nicole R Hales
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.,Department of Research Development and Commercialization, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Jarren C Kay
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, USA
| | - Madhab Sapkota
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.,Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Drew R Schield
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.,Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, CO, USA
| | - Mark W Pellegrino
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Stephen M Secor
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, USA
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Todd A Castoe
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.
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15
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Zeng CW, Sheu JC, Tsai HJ. Hypoxia-Responsive Subtype Cells Differentiate Into Neurons in the Brain of Zebrafish Embryos Exposed to Hypoxic Stress. Cell Transplant 2022; 31:9636897221077930. [PMID: 35225023 PMCID: PMC8894973 DOI: 10.1177/09636897221077930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Severe hypoxia results in complete loss of central nervous system (CNS) function in mammals, while several other vertebrates, such as zebrafish, can regenerate after hypoxia-induced injury of CNS. Since the cellular mechanism involved in this remarkable feature of other vertebrates is still unclear, we studied the cellular regeneration of zebrafish brain, employing zebrafish embryos from transgenic line huORFZ exposed to hypoxia and then oxygen recovery. GFP-expressing cells, identified in some cells of the CNS, including some brain cells, were termed as hypoxia-responsive recovering cells (HrRCs). After hypoxia, HrRCs did not undergo apoptosis, while most non-GFP-expressing cells, including neurons, did. Major cell types of HrRCs found in the brain of zebrafish embryos induced by hypoxic stress were neural stem/progenitor cells (NSPCs) and radial glia cells (RGs), that is, subtypes of NSPCs (NSPCs-HrRCs) and RGs (RGs-HrRCs) that were induced by and sensitively responded to hypoxic stress. Interestingly, among HrRCs, subtypes of NSPCs- or RGs-HrRCs could proliferate and differentiate into early neurons during oxygen recovery, suggesting that these subtype cells might play a critical role in brain regeneration of zebrafish embryos after hypoxic stress.
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Affiliation(s)
- Chih-Wei Zeng
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei.,Liver Disease Prevention and Treatment Research Foundation, Taipei
| | - Jin-Chuan Sheu
- Liver Disease Prevention and Treatment Research Foundation, Taipei
| | - Huai-Jen Tsai
- School of Medicine, Fu Jen Catholic University, New Taipei City.,Department of Life Science, Fu Jen Catholic University, New Taipei City
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16
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Dunton AD, Göpel T, Ho DH, Burggren W. Form and Function of the Vertebrate and Invertebrate Blood-Brain Barriers. Int J Mol Sci 2021; 22:ijms222212111. [PMID: 34829989 PMCID: PMC8618301 DOI: 10.3390/ijms222212111] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/23/2021] [Accepted: 10/28/2021] [Indexed: 12/25/2022] Open
Abstract
The need to protect neural tissue from toxins or other substances is as old as neural tissue itself. Early recognition of this need has led to more than a century of investigation of the blood-brain barrier (BBB). Many aspects of this important neuroprotective barrier have now been well established, including its cellular architecture and barrier and transport functions. Unsurprisingly, most research has had a human orientation, using mammalian and other animal models to develop translational research findings. However, cell layers forming a barrier between vascular spaces and neural tissues are found broadly throughout the invertebrates as well as in all vertebrates. Unfortunately, previous scenarios for the evolution of the BBB typically adopt a classic, now discredited 'scala naturae' approach, which inaccurately describes a putative evolutionary progression of the mammalian BBB from simple invertebrates to mammals. In fact, BBB-like structures have evolved independently numerous times, complicating simplistic views of the evolution of the BBB as a linear process. Here, we review BBBs in their various forms in both invertebrates and vertebrates, with an emphasis on the function, evolution, and conditional relevance of popular animal models such as the fruit fly and the zebrafish to mammalian BBB research.
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Affiliation(s)
- Alicia D. Dunton
- Developmental Integrative Biology Group, Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA; (T.G.); (W.B.)
- Correspondence:
| | - Torben Göpel
- Developmental Integrative Biology Group, Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA; (T.G.); (W.B.)
| | - Dao H. Ho
- Department of Clinical Investigation, Tripler Army Medical Center, Honolulu, HI 96859, USA;
| | - Warren Burggren
- Developmental Integrative Biology Group, Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA; (T.G.); (W.B.)
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17
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Alesci A, Pergolizzi S, Lo Cascio P, Fumia A, Lauriano ER. Neuronal regeneration: Vertebrates comparative overview and new perspectives for neurodegenerative diseases. ACTA ZOOL-STOCKHOLM 2021. [DOI: 10.1111/azo.12397] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Simona Pergolizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Patrizia Lo Cascio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Angelo Fumia
- Department of Clinical and Experimental Medicine University of Messina Messina Italy
| | - Eugenia Rita Lauriano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
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18
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MRI- and histologically derived neuroanatomical atlas of the Ambystoma mexicanum (axolotl). Sci Rep 2021; 11:9850. [PMID: 33972650 PMCID: PMC8110773 DOI: 10.1038/s41598-021-89357-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/12/2021] [Indexed: 02/03/2023] Open
Abstract
Amphibians are an important vertebrate model system to understand anatomy, genetics and physiology. Importantly, the brain and spinal cord of adult urodels (salamanders) have an incredible regeneration capacity, contrary to anurans (frogs) and the rest of adult vertebrates. Among these amphibians, the axolotl (Ambystoma mexicanum) has gained most attention because of the surge in the understanding of central nervous system (CNS) regeneration and the recent sequencing of its whole genome. However, a complete comprehension of the brain anatomy is not available. In the present study we created a magnetic resonance imaging (MRI) atlas of the in vivo neuroanatomy of the juvenile axolotl brain. This is the first MRI atlas for this species and includes three levels: (1) 82 regions of interest (ROIs) and a version with 64 ROIs; (2) a division of the brain according to the embryological origin of the neural tube, and (3) left and right hemispheres. Additionally, we localized the myelin rich regions of the juvenile brain. The atlas, the template that the atlas was derived from, and a masking file, can be found on Zenodo at https://doi.org/10.5281/zenodo.4595016 . This MRI brain atlas aims to be an important tool for future research of the axolotl brain and that of other amphibians.
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19
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Alibardi L. Regeneration in anamniotes was replaced by regengrow and scarring in amniotes after land colonization and the evolution of terrestrial biological cycles. Dev Dyn 2021; 251:1404-1413. [PMID: 33793005 DOI: 10.1002/dvdy.341] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/01/2021] [Accepted: 03/24/2021] [Indexed: 12/11/2022] Open
Abstract
An evolutionary hypothesis explaining failure of regeneration among vertebrates is presented. Regeneration derives from postembryonic processes present during the life cycles of fish and amphibians that include larval and metamorphic phases with broad organ reorganizations. Developmental programs imprinted in their genomes are re-utilized with variations also in adults for regeneration. When vertebrates colonized land adopting the amniotic egg, some genes driving larval changes, and metamorphosis were lost and new genes evolved, further limiting regeneration. These included neural inhibitors for maintaining complex nervous systems, behavior and various levels of intelligence, and adaptive immune cells. The latter, that in anamniotes are executioners of metamorphic reorganization, became intolerant to embryonic-oncofetal-antigens impeding organ regeneration, a process that requires de-differentiation of adult cells and/or expansion of stem cells where these early antigens are formed. The evolution of terrestrial lifecycles produced vertebrates with complex bodies but no longer capable to regenerate their organs, mainly repaired by regengrow. Efforts of regenerative medicine to improve healing in humans should determine the diverse developmental pathways evolved between anamniotes and amniotes before attempting genetic manipulations such as the introduction of "anamniote regenerative genes" in amniotes. This operation may determine alteration in amniote developmental programs leading to teratomes, cancer, or death.
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Affiliation(s)
- Lorenzo Alibardi
- Comparative Histolab Padova and Department of Biology, University of Bologna, Bologna, Italy
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20
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DeOliveira-Mello L, Mack AF, Lara JM, Arévalo R. Cultures of glial cells from optic nerve of two adult teleost fish: Astatotilapia burtoni and Danio rerio. J Neurosci Methods 2021; 353:109096. [PMID: 33581217 DOI: 10.1016/j.jneumeth.2021.109096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/20/2020] [Accepted: 02/06/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND In vitro studies are very useful to increase the knowledge of different cell types and could be the key to understand cell metabolism and function. Fish optic nerves (ON) can recover visual functions by reestablishing its structure and reconnecting the axons of ganglion cells. This is because fish show spontaneous regeneration of the central nervous system which does not occur in mammals. In addition, several studies have indicated that glial cells of ON have different properties in comparison to the glial cells from brain or retina. Consequently, providing an in vitro tool will be highly beneficial to increase the knowledge of these cells. NEW METHOD We developed a cell culture protocol to isolate glial cells from ON of two teleost fish species, Danio rerio and Astatotilapia burtoni. RESULTS The optimized protocol allowed us to obtain ON cells and brain-derived cells from adult teleost fish. These cells were characterized as glial cells and their proprieties in vitro were analyzed.Comparison with Existing Method(s): Although it is striking that ON glial cells show peculiarities, their study in vitro has been limited by the only published protocol going back to the 1990s. Our protocol makes glial cells of different fish species available for experiments and studies to increase the understanding of these glial cell types. CONCLUSIONS This validated and effective in vitro tool increases the possibilities on studies of glial cells from fish ON which implies a reduction in animal experimentation.
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Affiliation(s)
- Laura DeOliveira-Mello
- Dept. Cell Biology and Pathology, IBSAL-Institute of Neurosciences of Castilla and León University of Salamanca Salamanca, Spain.
| | - Andreas F Mack
- Institute of Clinical Anatomy and Cell Analysis University of Tübingen Tübingen, Germany
| | - Juan M Lara
- Dept. Cell Biology and Pathology, IBSAL-Institute of Neurosciences of Castilla and León University of Salamanca Salamanca, Spain
| | - Rosario Arévalo
- Dept. Cell Biology and Pathology, IBSAL-Institute of Neurosciences of Castilla and León University of Salamanca Salamanca, Spain
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21
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Grigoryan EN. Study of Natural Longlife Juvenility and Tissue Regeneration in Caudate Amphibians and Potential Application of Resulting Data in Biomedicine. J Dev Biol 2021; 9:2. [PMID: 33477527 PMCID: PMC7838874 DOI: 10.3390/jdb9010002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 12/14/2022] Open
Abstract
The review considers the molecular, cellular, organismal, and ontogenetic properties of Urodela that exhibit the highest regenerative abilities among tetrapods. The genome specifics and the expression of genes associated with cell plasticity are analyzed. The simplification of tissue structure is shown using the examples of the sensory retina and brain in mature Urodela. Cells of these and some other tissues are ready to initiate proliferation and manifest the plasticity of their phenotype as well as the correct integration into the pre-existing or de novo forming tissue structure. Without excluding other factors that determine regeneration, the pedomorphosis and juvenile properties, identified on different levels of Urodele amphibians, are assumed to be the main explanation for their high regenerative abilities. These properties, being fundamental for tissue regeneration, have been lost by amniotes. Experiments aimed at mammalian cell rejuvenation currently use various approaches. They include, in particular, methods that use secretomes from regenerating tissues of caudate amphibians and fish for inducing regenerative responses of cells. Such an approach, along with those developed on the basis of knowledge about the molecular and genetic nature and age dependence of regeneration, may become one more step in the development of regenerative medicine.
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Affiliation(s)
- Eleonora N Grigoryan
- Kol'tsov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
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22
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Quiescent Neural Stem Cells for Brain Repair and Regeneration: Lessons from Model Systems. Trends Neurosci 2020; 43:213-226. [PMID: 32209453 DOI: 10.1016/j.tins.2020.02.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/26/2020] [Accepted: 02/05/2020] [Indexed: 12/29/2022]
Abstract
Neural stem cells (NSCs) are multipotent progenitors that are responsible for producing all of the neurons and macroglia in the nervous system. In adult mammals, NSCs reside predominantly in a mitotically dormant, quiescent state, but they can proliferate in response to environmental inputs such as feeding or exercise. It is hoped that quiescent NSCs could be activated therapeutically to contribute towards repair in humans. This will require an understanding of quiescent NSC heterogeneities and regulation during normal physiology and following brain injury. Non-mammalian vertebrates (zebrafish and salamanders) and invertebrates (Drosophila) offer insights into brain repair and quiescence regulation that are difficult to obtain using rodent models alone. We review conceptual progress from these various models, a first step towards harnessing quiescent NSCs for therapeutic purposes.
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Zupanc GKH, Monaghan JR, Stocum DL. Adult Neural Stem Cells in Development, Regeneration, and Aging. Dev Neurobiol 2020; 79:391-395. [PMID: 31219240 DOI: 10.1002/dneu.22702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 05/22/2019] [Indexed: 12/25/2022]
Affiliation(s)
| | - James R Monaghan
- Department of Biology, Northeastern University, Boston, Massachusetts
| | - David L Stocum
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana
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Joven A, Elewa A, Simon A. Model systems for regeneration: salamanders. Development 2019; 146:146/14/dev167700. [PMID: 31332037 DOI: 10.1242/dev.167700] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/28/2019] [Indexed: 02/03/2023]
Abstract
Salamanders have been hailed as champions of regeneration, exhibiting a remarkable ability to regrow tissues, organs and even whole body parts, e.g. their limbs. As such, salamanders have provided key insights into the mechanisms by which cells, tissues and organs sense and regenerate missing or damaged parts. In this Primer, we cover the evolutionary context in which salamanders emerged. We outline the varieties of mechanisms deployed during salamander regeneration, and discuss how these mechanisms are currently being explored and how they have advanced our understanding of animal regeneration. We also present arguments about why it is important to study closely related species in regeneration research.
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Affiliation(s)
- Alberto Joven
- Karolinska Institute, Department of Cell and Molecular Biology, Biomedicum, Solnavägen 9, 17163 Stockolm, Sweden
| | - Ahmed Elewa
- Karolinska Institute, Department of Cell and Molecular Biology, Biomedicum, Solnavägen 9, 17163 Stockolm, Sweden
| | - András Simon
- Karolinska Institute, Department of Cell and Molecular Biology, Biomedicum, Solnavägen 9, 17163 Stockolm, Sweden
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