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Liu L, Zhong Y, Zheng T, Zhao J, Ding S, Lv J, Xu Q, Zhang Y. Epimedin B exerts an anti-inflammatory effect by regulating the MAPK/NF-κB/NOD-like receptor signalling pathways. FISH & SHELLFISH IMMUNOLOGY 2024; 150:109657. [PMID: 38801842 DOI: 10.1016/j.fsi.2024.109657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Epimedin B (EB), a predominant compound found in Herba Epimedii, has been shown to be effective in the treatment of osteoporosis and peripheral neuropathy. However, the anti-inflammatory effect of EB has not yet been reported. The anti-inflammatory activity of EB was evaluated in a zebrafish inflammation model induced by copper sulfate (CuSO4) and tail cutting. Our findings demonstrated that EB effectively inhibited acute inflammation, mitigated the accumulation of reactive oxygen species (ROS), and ameliorated the neuroinflammation-associated impairment of locomotion in zebrafish. Moreover, EB regulates several genes related to the mitogen-activated protein kinase (MAPK)/nuclear factor-κB (NF-κB)/Nod-like receptor signalling pathways (mapk8b, src, mmp9, akt1, mapk14a, mapk14b, mapk1, egfra, map3k4, nfκb2, iκbαa, pycard, nlrp3 and caspase1) and inflammatory cytokine (stat6, arg1, irfɑ, stat1ɑ, il-1β, il-4, il-6, il-8, cox-2, ptges, tnf-α and tgf-β). Therefore, our findings indicate that EB could serve as a promising therapeutic candidate for treating inflammation.
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Affiliation(s)
- Li Liu
- School of Pharmacy, Changzhou University, Changzhou, 213164, China.
| | - Yayun Zhong
- School of Pharmacy, Changzhou University, Changzhou, 213164, China; Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China.
| | - Te Zheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China.
| | - Jingcheng Zhao
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China.
| | - Shumin Ding
- School of Pharmacy, Changzhou University, Changzhou, 213164, China.
| | - Jinpeng Lv
- School of Pharmacy, Changzhou University, Changzhou, 213164, China.
| | - Qian Xu
- Jinan Municipal Hospital of Traditional Chinese Medicine, Jinan, 250014, China.
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China.
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Lin MJ, Lee CM, Hsu WL, Chen BC, Lee SJ. Macrophages Break Interneuromast Cell Quiescence by Intervening in the Inhibition of Schwann Cells in the Zebrafish Lateral Line. Front Cell Dev Biol 2022; 10:907863. [PMID: 35846366 PMCID: PMC9285731 DOI: 10.3389/fcell.2022.907863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
In the zebrafish lateral line system, interneuromast cells (INCs) between neuromasts are kept quiescent by underlying Schwann cells (SWCs). Upon severe injuries that cause the complete loss of an entire neuromast, INCs can occasionally differentiate into neuromasts but how they escape from the inhibition by SWCs is still unclear. Using a genetic/chemical method to ablate a neuromast precisely, we found that a small portion of larvae can regenerate a new neuromast. However, the residual regeneration capacity was hindered by inhibiting macrophages. Using in toto imaging, we further discovered heterogeneities in macrophage behavior and distribution along the lateral line. We witnessed the crawling of macrophages between the injured lateral line and SWCs during regeneration and between the second primordium and the first mature lateral line during development. It implies that macrophages may physically alleviate the nerve inhibition to break the dormancy of INCs during regeneration and development in the zebrafish lateral line.
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Affiliation(s)
- Meng-Ju Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan, R.O.C.
| | - Chia-Ming Lee
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan, R.O.C.
| | - Wei-Lin Hsu
- Department of Life Science, National Taiwan University, Taipei, Taiwan, R.O.C.
| | - Bi-Chang Chen
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan, R.O.C.
| | - Shyh-Jye Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan, R.O.C.
- Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan, R.O.C.
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan, R.O.C.
- *Correspondence: Shyh-Jye Lee,
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Current Advances in Comprehending Dynamics of Regenerating Axons and Axon-Glia Interactions after Peripheral Nerve Injury in Zebrafish. Int J Mol Sci 2021; 22:ijms22052484. [PMID: 33801205 PMCID: PMC7957880 DOI: 10.3390/ijms22052484] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/11/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
Following an injury, axons of both the central nervous system (CNS) and peripheral nervous system (PNS) degenerate through a coordinated and genetically conserved mechanism known as Wallerian degeneration (WD). Unlike central axons, severed peripheral axons have a higher capacity to regenerate and reinnervate their original targets, mainly because of the favorable environment that they inhabit and the presence of different cell types. Even though many aspects of regeneration in peripheral nerves have been studied, there is still a lack of understanding regarding the dynamics of axonal degeneration and regeneration, mostly due to the inherent limitations of most animal models. In this scenario, the use of zebrafish (Danio rerio) larvae combined with time-lapse microscopy currently offers a unique experimental opportunity to monitor the dynamics of the regenerative process in the PNS in vivo. This review summarizes the current knowledge and advances made in understanding the dynamics of the regenerative process of PNS axons. By using different tools available in zebrafish such as electroablation of the posterior lateral line nerve (pLLn), and laser-mediated transection of motor and sensory axons followed by time-lapse microscopy, researchers are beginning to unravel the complexity of the spatiotemporal interactions among different cell types during the regenerative process. Thus, understanding the cellular and molecular mechanisms underlying the degeneration and regeneration of peripheral nerves will open new avenues in the treatment of acute nerve trauma or chronic conditions such as neurodegenerative diseases.
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Oxidative Effects during Irreversible Electroporation of Melanoma Cells-In Vitro Study. Molecules 2020; 26:molecules26010154. [PMID: 33396317 PMCID: PMC7796376 DOI: 10.3390/molecules26010154] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/15/2020] [Accepted: 12/28/2020] [Indexed: 12/14/2022] Open
Abstract
Irreversible electroporation (IRE) is today used as an alternative to surgery for the excision of cancer lesions. This study aimed to investigate the oxidative and cytotoxic effects the cells undergo during irreversible electroporation using IRE protocols. To do so, we used IRE-inducing pulsed electric fields (PEFs) (eight pulses of 0.1 ms duration and 2-4 kV/cm intensity) and compared their effects to those of PEFs of intensities below the electroporation threshold (eight pulses, 0.1 ms, 0.2-0.4 kV/cm) and the PEFs involving elongated pulses (eight pulses, 10 ms, 0.2-0.4 kV/cm). Next, to follow the morphology of the melanoma cell membranes after treatment with the PEFs, we analyzed the permeability and integrity of their membranes and analyzed the radical oxygen species (ROS) bursts and the membrane lipids' oxidation. Our data showed that IRE-induced high cytotoxic effect is associated both with irreversible cell membrane disruption and ROS-associated oxidation, which is occurrent also in the low electric field range. It was shown that the viability of melanoma cells characterized by similar ROS content and lipid membrane oxidation after PEF treatment depends on the integrity of the membrane system. Namely, when the effects of the PEF on the membrane are reversible, aside from the high level of ROS and membrane oxidation, the cell does not undergo cell death.
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Zanandrea R, Bonan CD, Campos MM. Zebrafish as a model for inflammation and drug discovery. Drug Discov Today 2020; 25:2201-2211. [PMID: 33035664 DOI: 10.1016/j.drudis.2020.09.036] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 08/17/2020] [Accepted: 09/30/2020] [Indexed: 12/24/2022]
Abstract
Zebrafish is a small teleost (bony) fish used in many areas of pharmacology and toxicology. This animal model has advantages for the discovery of anti-inflammatory drugs, such as the potential for real-time assessment of cell migration mechanisms. Additionally, zebrafish display a repertoire of inflammatory cells, mediators, and receptors that are similar to those in mammals, including humans. Inflammatory disease modeling in either larvae or adult zebrafish represents a promising tool for the screening of new anti-inflammatory compounds, contributing to our understanding of the mechanisms involved in chronic inflammatory conditions. In this review, we provide an overview of the characterization of inflammatory responses in zebrafish, emphasizing its relevance for drug discovery in this research area.
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Affiliation(s)
- Rodrigo Zanandrea
- Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Medicina, Programa de Pós-Graduação em Medicina e Ciências da Saúde, Porto Alegre, RS, Brazil; Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências da Saúde e da Vida, Laboratório de Neuroquímica e Psicofarmacologia, Porto Alegre, RS, Brazil
| | - Carla D Bonan
- Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Medicina, Programa de Pós-Graduação em Medicina e Ciências da Saúde, Porto Alegre, RS, Brazil; Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências da Saúde e da Vida, Laboratório de Neuroquímica e Psicofarmacologia, Porto Alegre, RS, Brazil; Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil
| | - Maria M Campos
- Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Medicina, Programa de Pós-Graduação em Medicina e Ciências da Saúde, Porto Alegre, RS, Brazil; Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil; Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências da Saúde e da Vida, Centro de Pesquisa em Toxicologia e Farmacologia, Porto Alegre, RS, Brazil.
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6
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Anguita-Salinas C, Sánchez M, Morales RA, Ceci ML, Rojas-Benítez D, Allende ML. Cellular Dynamics during Spinal Cord Regeneration in Larval Zebrafish. Dev Neurosci 2019; 41:112-122. [PMID: 31390621 DOI: 10.1159/000500185] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 04/04/2019] [Indexed: 11/19/2022] Open
Abstract
The study of spinal cord regeneration using diverse animal models, which range from null to robust regenerative capabilities, is imperative for understanding how regeneration evolved and, eventually, to treat spinal cord injury and paralysis in humans. In this study, we used electroablation to fully transect the spinal cord of zebrafish larvae (3 days postfertilization) and examined regeneration of the tissue over time. We used transgenic lines to follow immune cells, oligodendrocytes, and neurons in vivo during the entire regenerative process. We observed that immune cells are recruited to the injury site, oligodendrocytes progenitor cells (olig2-expressing cells) invade, and axons cross the gap generated upon damage from anterior to reinnervate caudal structures. Together with the recovery of cell types and structures, a complete reversal of paralysis was observed in the lesioned larvae indicating functional regeneration. Finally, using transplantation to obtain mosaic larvae with single-labeled neurons, we show that severed spinal axons exhibited varying regenerative capabilities and plasticity depending on their original dorsoventral position in the spinal cord.
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Affiliation(s)
- Consuelo Anguita-Salinas
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Mario Sánchez
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Rodrigo A Morales
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - María Laura Ceci
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Diego Rojas-Benítez
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Miguel L Allende
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile,
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Pei W, Huang SC, Xu L, Pettie K, Ceci ML, Sánchez M, Allende ML, Burgess SM. Loss of Mgat5a-mediated N-glycosylation stimulates regeneration in zebrafish. ACTA ACUST UNITED AC 2016; 5:3. [PMID: 27795824 PMCID: PMC5072312 DOI: 10.1186/s13619-016-0031-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 09/20/2016] [Indexed: 12/27/2022]
Abstract
Background We are using genetics to identify genes specifically involved in hearing regeneration. In a large-scale genetic screening, we identified mgat5a, a gene in the N-glycosylation biosynthesis pathway whose activity negatively impacts hair cell regeneration. Methods We used a combination of mutant analysis in zebrafish and a hair cell regeneration assay to phenotype the loss of Mgat5a activity in zebrafish. We used pharmacological inhibition of N-glycosylation by swansonine. We also used over-expression analysis by mRNA injections to demonstrate how changes in N-glycosylation can alter cell signaling. Results We found that mgat5a was expressed in multiple tissues during zebrafish embryo development, particularly enriched in neural tissues including the brain, retina, and lateral line neuromasts. An mgat5a insertional mutation and a CRISPR/Cas9-generated truncation mutation both caused an enhancement of hair cell regeneration which could be phenocopied by pharmacological inhibition with swansonine. In addition to hair cell regeneration, inhibition of the N-glycosylation pathway also enhanced the regeneration of lateral line axon and caudal fins. Further analysis showed that N-glycosylation altered the responsiveness of TGF-beta signaling. Conclusions The findings from this study provide experimental evidence for the involvement of N-glycosylation in tissue regeneration and cell signaling. Electronic supplementary material The online version of this article (doi:10.1186/s13619-016-0031-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wuhong Pei
- Functional and Translation Genome Branch, National Human Genome Research Institute, 9000 Rockville Pike, Building 50, Room 5537, Bethesda, MD 20892 USA
| | - Sunny C Huang
- Functional and Translation Genome Branch, National Human Genome Research Institute, 9000 Rockville Pike, Building 50, Room 5537, Bethesda, MD 20892 USA
| | - Lisha Xu
- Functional and Translation Genome Branch, National Human Genome Research Institute, 9000 Rockville Pike, Building 50, Room 5537, Bethesda, MD 20892 USA
| | - Kade Pettie
- Functional and Translation Genome Branch, National Human Genome Research Institute, 9000 Rockville Pike, Building 50, Room 5537, Bethesda, MD 20892 USA
| | - María Laura Ceci
- Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
| | - Mario Sánchez
- Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
| | - Miguel L Allende
- Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
| | - Shawn M Burgess
- Functional and Translation Genome Branch, National Human Genome Research Institute, 9000 Rockville Pike, Building 50, Room 5537, Bethesda, MD 20892 USA
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Sánchez M, Ceci ML, Gutiérrez D, Anguita-Salinas C, Allende ML. Mechanosensory organ regeneration in zebrafish depends on a population of multipotent progenitor cells kept latent by Schwann cells. BMC Biol 2016; 14:27. [PMID: 27055439 PMCID: PMC4823859 DOI: 10.1186/s12915-016-0249-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 03/22/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Regenerating damaged tissue is a complex process, requiring progenitor cells that must be stimulated to undergo proliferation, differentiation and, often, migratory behaviors and morphological changes. Multiple cell types, both resident within the damaged tissue and recruited to the lesion site, have been shown to participate. However, the cellular and molecular mechanisms involved in the activation of progenitor cell proliferation and differentiation after injury, and their regulation by different cells types, are not fully understood. The zebrafish lateral line is a suitable system to study regeneration because most of its components are fully restored after damage. The posterior lateral line (PLL) is a mechanosensory system that develops embryonically and is initially composed of seven to eight neuromasts distributed along the trunk and tail, connected by a continuous stripe of interneuromastic cells (INCs). The INCs remain in a quiescent state owing to the presence of underlying Schwann cells. They become activated during development to form intercalary neuromasts. However, no studies have described if INCs can participate in a regenerative event, for example, after the total loss of a neuromast. RESULTS We used electroablation in transgenic larvae expressing fluorescent proteins in PLL components to completely ablate single neuromasts in larvae and adult fish. This injury results in discontinuity of the INCs, Schwann cells, and the PLL nerve. In vivo imaging showed that the INCs fill the gap left after the injury and can regenerate a new neuromast in the injury zone. Further, a single INC is able to divide and form all cell types in a regenerated neuromast and, during this process, it transiently expresses the sox2 gene, a neural progenitor cell marker. We demonstrate a critical role for Schwann cells as negative regulators of INC proliferation and neuromast regeneration, and that this inhibitory property is completely dependent on active ErbB signaling. CONCLUSIONS The potential to regenerate a neuromast after damage requires that progenitor cells (INCs) be temporarily released from an inhibitory signal produced by nearby Schwann cells. This simple yet highly effective two-component niche offers the animal robust mechanisms for organ growth and regeneration, which can be sustained throughout life.
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Affiliation(s)
- Mario Sánchez
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Las Palmeras 3425, Santiago, Chile
| | - Maria Laura Ceci
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Las Palmeras 3425, Santiago, Chile
| | - Daniela Gutiérrez
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Las Palmeras 3425, Santiago, Chile
| | - Consuelo Anguita-Salinas
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Las Palmeras 3425, Santiago, Chile
| | - Miguel L Allende
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Las Palmeras 3425, Santiago, Chile.
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Chávez MN, Aedo G, Fierro FA, Allende ML, Egaña JT. Zebrafish as an Emerging Model Organism to Study Angiogenesis in Development and Regeneration. Front Physiol 2016; 7:56. [PMID: 27014075 PMCID: PMC4781882 DOI: 10.3389/fphys.2016.00056] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 02/05/2016] [Indexed: 01/04/2023] Open
Abstract
Angiogenesis is the process through which new blood vessels are formed from preexisting ones and plays a critical role in several conditions including embryonic development, tissue repair and disease. Moreover, enhanced therapeutic angiogenesis is a major goal in the field of regenerative medicine and efficient vascularization of artificial tissues and organs is one of the main hindrances in the implementation of tissue engineering approaches, while, on the other hand, inhibition of angiogenesis is a key therapeutic target to inhibit for instance tumor growth. During the last decades, the understanding of cellular and molecular mechanisms involved in this process has been matter of intense research. In this regard, several in vitro and in vivo models have been established to visualize and study migration of endothelial progenitor cells, formation of endothelial tubules and the generation of new vascular networks, while assessing the conditions and treatments that either promote or inhibit such processes. In this review, we address and compare the most commonly used experimental models to study angiogenesis in vitro and in vivo. In particular, we focus on the implementation of the zebrafish (Danio rerio) as a model to study angiogenesis and discuss the advantages and not yet explored possibilities of its use as model organism.
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Affiliation(s)
- Myra N Chávez
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität MünchenMunich, Germany; Department of Biology, FONDAP Center for Genome Regulation, Faculty of Science, Universidad de ChileSantiago, Chile; Department of Biochemistry and Molecular Biology, FONDAP Advanced Center for Chronic Diseases (ACCDiS) and Center for Molecular Studies of the Cell (CEMC), Faculty of Chemical and Pharmaceutical Sciences, Faculty of Medicine, University of ChileSantiago, Chile
| | - Geraldine Aedo
- Department of Biology, FONDAP Center for Genome Regulation, Faculty of Science, Universidad de Chile Santiago, Chile
| | - Fernando A Fierro
- Department of Cell Biology and Human Anatomy, University of California Davis, Sacramento, CA, USA
| | - Miguel L Allende
- Department of Biology, FONDAP Center for Genome Regulation, Faculty of Science, Universidad de Chile Santiago, Chile
| | - José T Egaña
- Institute for Medical and Biological Engineering, Schools of Engineering, Biological Sciences and Medicine, Pontifícia Universidad Católica de Chile Santiago, Chile
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Tong Z, Segura-Feliu M, Seira O, Homs-Corbera A, Del Río JA, Samitier J. A microfluidic neuronal platform for neuron axotomy and controlled regenerative studies. RSC Adv 2015. [DOI: 10.1039/c5ra11522a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have presented here a simple microfluidic approach to model mechanical and synchronized axotomy of a large number of axons to study axonal regeneration, and to facilitate rapid screening and discovery of novel pharmaceutical compounds.
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Affiliation(s)
- Ziqiu Tong
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
| | - Miriam Segura-Feliu
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- Department of Cell Biology
- University of Barcelona
| | - Oscar Seira
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
| | - Antoni Homs-Corbera
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
- Biomateriales y Nanomedicina (CIBERBBN)
| | - José Antonio Del Río
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- Department of Cell Biology
- University of Barcelona
| | - Josep Samitier
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
- Biomateriales y Nanomedicina (CIBERBBN)
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Ceci ML, Mardones-Krsulovic C, Sánchez M, Valdivia LE, Allende ML. Axon-Schwann cell interactions during peripheral nerve regeneration in zebrafish larvae. Neural Dev 2014; 9:22. [PMID: 25326036 PMCID: PMC4214607 DOI: 10.1186/1749-8104-9-22] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 09/29/2014] [Indexed: 01/13/2023] Open
Abstract
Background Peripheral nerve injuries can severely affect the way that animals perceive signals from the surrounding environment. While damage to peripheral axons generally has a better outcome than injuries to central nervous system axons, it is currently unknown how neurons re-establish their target innervations to recover function after injury, and how accessory cells contribute to this task. Here we use a simple technique to create reproducible and localized injury in the posterior lateral line (pLL) nerve of zebrafish and follow the fate of both neurons and Schwann cells. Results Using pLL single axon labeling by transient transgene expression, as well as transplantation of glial precursor cells in zebrafish larvae, we individualize different components in this system and characterize their cellular behaviors during the regenerative process. Neurectomy is followed by loss of Schwann cell differentiation markers that is reverted after nerve regrowth. We show that reinnervation of lateral line hair cells in neuromasts during pLL nerve regeneration is a highly dynamic process with promiscuous yet non-random target recognition. Furthermore, Schwann cells are required for directional extension and fasciculation of the regenerating nerve. We provide evidence that these cells and regrowing axons are mutually dependant during early stages of nerve regeneration in the pLL. The role of ErbB signaling in this context is also explored. Conclusion The accessibility of the pLL nerve and the availability of transgenic lines that label this structure and their synaptic targets provides an outstanding in vivo model to study the different events associated with axonal extension, target reinnervation, and the complex cellular interactions between glial cells and injured axons during nerve regeneration.
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Affiliation(s)
| | | | | | | | - Miguel L Allende
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
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Chen X, Yin Y, Zhang T, Zhao Y, Yang Y, Yu X, Wang H. Ultrasound imaging of chitosan nerve conduits that bridge sciatic nerve defects in rats. Neural Regen Res 2014; 9:1386-8. [PMID: 25221596 PMCID: PMC4160870 DOI: 10.4103/1673-5374.137592] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2014] [Indexed: 12/02/2022] Open
Affiliation(s)
- Xiaoyang Chen
- Department of Doppler Ultrasound, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Yifei Yin
- Department of Doppler Ultrasound, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Tingting Zhang
- Department of Doppler Ultrasound, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Yahong Zhao
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Yumin Yang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xiaomei Yu
- Department of Doppler Ultrasound, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Hongkui Wang
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou, Jiangsu Province, China ; Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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