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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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2
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Habjan E, Schouten GK, Speer A, van Ulsen P, Bitter W. Diving into drug-screening: zebrafish embryos as an in vivo platform for antimicrobial drug discovery and assessment. FEMS Microbiol Rev 2024; 48:fuae011. [PMID: 38684467 PMCID: PMC11078164 DOI: 10.1093/femsre/fuae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/24/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024] Open
Abstract
The rise of multidrug-resistant bacteria underlines the need for innovative treatments, yet the introduction of new drugs has stagnated despite numerous antimicrobial discoveries. A major hurdle is a poor correlation between promising in vitro data and in vivo efficacy in animal models, which is essential for clinical development. Early in vivo testing is hindered by the expense and complexity of existing animal models. Therefore, there is a pressing need for cost-effective, rapid preclinical models with high translational value. To overcome these challenges, zebrafish embryos have emerged as an attractive model for infectious disease studies, offering advantages such as ethical alignment, rapid development, ease of maintenance, and genetic manipulability. The zebrafish embryo infection model, involving microinjection or immersion of pathogens and potential antibiotic hit compounds, provides a promising solution for early-stage drug screening. It offers a cost-effective and rapid means of assessing the efficacy, toxicity and mechanism of action of compounds in a whole-organism context. This review discusses the experimental design of this model, but also its benefits and challenges. Additionally, it highlights recently identified compounds in the zebrafish embryo infection model and discusses the relevance of the model in predicting the compound's clinical potential.
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Affiliation(s)
- Eva Habjan
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Location VU Medical Center,De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Gina K Schouten
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Location VU Medical Center,De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Alexander Speer
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Location VU Medical Center,De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Peter van Ulsen
- Section Molecular Microbiology of A-LIFE, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
| | - Wilbert Bitter
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Location VU Medical Center,De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
- Section Molecular Microbiology of A-LIFE, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
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Kaliya-Perumal AK, Celik C, Carney TJ, Harris MP, Ingham PW. Genetic regulation of injury-induced heterotopic ossification in adult zebrafish. Dis Model Mech 2024; 17:dmm050724. [PMID: 38736327 DOI: 10.1242/dmm.050724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/05/2024] [Indexed: 05/14/2024] Open
Abstract
Heterotopic ossification is the inappropriate formation of bone in soft tissues of the body. It can manifest spontaneously in rare genetic conditions or as a response to injury, known as acquired heterotopic ossification. There are several experimental models for studying acquired heterotopic ossification from different sources of damage. However, their tenuous mechanistic relevance to the human condition, invasive and laborious nature and/or lack of amenability to chemical and genetic screens, limit their utility. To address these limitations, we developed a simple zebrafish injury model that manifests heterotopic ossification with high penetrance in response to clinically emulating injuries, as observed in human myositis ossificans traumatica. Using this model, we defined the transcriptional response to trauma, identifying differentially regulated genes. Mutant analyses revealed that an increase in the activity of the potassium channel Kcnk5b potentiates injury response, whereas loss of function of the interleukin 11 receptor paralogue (Il11ra) resulted in a drastically reduced ossification response. Based on these findings, we postulate that enhanced ionic signalling, specifically through Kcnk5b, regulates the intensity of the skeletogenic injury response, which, in part, requires immune response regulated by Il11ra.
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Affiliation(s)
- Arun-Kumar Kaliya-Perumal
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive 636921, Singapore
| | - Cenk Celik
- Department of Genetics, Evolution and Environment, Genetics Institute, University College London, London WC1E 6BT, UK
| | - Tom J Carney
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive 636921, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos 138673, Singapore
| | - Matthew P Harris
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Department of Orthopedic Research, Boston Children's Hospital, Boston, MA 02115, USA
| | - Philip W Ingham
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive 636921, Singapore
- Department of Life Sciences, University of Bath, Bath BA2 7AY, UK
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Oudhoff H, Hisler V, Baumgartner F, Rees L, Grepper D, Jaźwińska A. Skeletal muscle regeneration after extensive cryoinjury of caudal myomeres in adult zebrafish. NPJ Regen Med 2024; 9:8. [PMID: 38378693 PMCID: PMC10879182 DOI: 10.1038/s41536-024-00351-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 01/24/2024] [Indexed: 02/22/2024] Open
Abstract
Skeletal muscles can regenerate after minor injuries, but severe structural damage often leads to fibrosis in mammals. Whether adult zebrafish possess the capacity to reproduce profoundly destroyed musculature remains unknown. Here, a new cryoinjury model revealed that several myomeres efficiently regenerated within one month after wounding the zebrafish caudal peduncle. Wound clearance involved accumulation of the selective autophagy receptor p62, an immune response and Collagen XII deposition. New muscle formation was associated with proliferation of Pax7 expressing muscle stem cells, which gave rise to MyoD1 positive myogenic precursors, followed by myofiber differentiation. Monitoring of slow and fast muscles revealed their coordinated replacement in the superficial and profound compartments of the myomere. However, the final boundary between the muscular components was imperfectly recapitulated, allowing myofibers of different identities to intermingle. The replacement of connective with sarcomeric tissues required TOR signaling, as rapamycin treatment impaired new muscle formation, leading to persistent fibrosis. The model of zebrafish myomere restoration may provide new medical perspectives for treatment of traumatic injuries.
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Affiliation(s)
- Hendrik Oudhoff
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700, Fribourg, Switzerland
| | - Vincent Hisler
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700, Fribourg, Switzerland
| | - Florian Baumgartner
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700, Fribourg, Switzerland
| | - Lana Rees
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700, Fribourg, Switzerland
| | - Dogan Grepper
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700, Fribourg, Switzerland
| | - Anna Jaźwińska
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700, Fribourg, Switzerland.
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Tan Z, Deng L, Jiang Z, Xiang G, Zhang G, He S, Zhang H, Wang Y. Selenium Nanoparticles Attenuate Cobalt Nanoparticle-Induced Skeletal Muscle Injury: A Study Based on Myoblasts and Zebrafish. TOXICS 2024; 12:130. [PMID: 38393225 PMCID: PMC10893304 DOI: 10.3390/toxics12020130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024]
Abstract
Cobalt alloys have numerous applications, especially as critical components in orthopedic biomedical implants. However, recent investigations have revealed potential hazards associated with the release of nanoparticles from cobalt-based implants during implantation. This can lead to their accumulation and migration within the body, resulting in adverse reactions such as organ toxicity. Despite being a primary interface for cobalt nanoparticle (CoNP) exposure, skeletal muscle lacks comprehensive long-term impact studies. This study evaluated whether selenium nanoparticles (SeNPs) could mitigate CoNP toxicity in muscle cells and zebrafish models. CoNPs dose-dependently reduced C2C12 viability while elevating reactive oxygen species (ROS) and apoptosis. However, low-dose SeNPs attenuated these adverse effects. CoNPs downregulated myogenic genes and α-smooth muscle actin (α-SMA) expression in C2C12 cells; this effect was attenuated by SeNP cotreatment. Zebrafish studies confirmed CoNP toxicity, as it decreased locomotor performance while inducing muscle injury, ROS generation, malformations, and mortality. However, SeNPs alleviated these detrimental effects. Overall, SeNPs mitigated CoNP-mediated cytotoxicity in muscle cells and tissue through antioxidative and antiapoptotic mechanisms. This suggests that SeNP-coated implants could be developed to eliminate cobalt nanoparticle toxicity and enhance the safety of metallic implants.
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Affiliation(s)
- Zejiu Tan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Linhua Deng
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhongjing Jiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Gang Xiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Gengming Zhang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Sihan He
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hongqi Zhang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yunjia Wang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China; (Z.T.); (L.D.); (Z.J.); (G.X.); (G.Z.); (S.H.); (H.Z.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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6
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Tan WH, Winkler C. Lineage Tracing of Bone Cells in the Regenerating Fin and During Repair of Bone Lesions. Methods Mol Biol 2024; 2707:99-110. [PMID: 37668907 DOI: 10.1007/978-1-0716-3401-1_6] [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] [Indexed: 09/06/2023]
Abstract
Small teleost fishes such as zebrafish and medaka show remarkable regeneration capabilities upon tissue injury or amputation. To elucidate cellular mechanisms of teleost tissue repair and regeneration processes, the Cre/LoxP recombination system for cell lineage tracing is a widely used technique. In this chapter, we describe protocols used for inducible Cre/LoxP recombination-mediated lineage tracing of osteoblast progenitors during medaka fin regeneration as well as during the repair of osteoporosis-like bone lesions in the medaka vertebral column. Our approach can be adapted for lineage tracing of other cell populations in the regenerating teleost fin or in other tissues undergoing repair.
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Affiliation(s)
- Wen Hui Tan
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
| | - Christoph Winkler
- Department of Biological Sciences and Centre for Bioimaging Sciences, National University of Singapore, Singapore, Singapore
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Clevenger T, Paz J, Stafford A, Amos D, Hayes AW. An Evaluation of Zebrafish, an Emerging Model Analyzing the Effects of Toxicants on Cognitive and Neuromuscular Function. Int J Toxicol 2024; 43:46-62. [PMID: 37903286 DOI: 10.1177/10915818231207966] [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] [Indexed: 11/01/2023]
Abstract
An emerging alternative to conventional animal models in toxicology research is the zebrafish. Their accelerated development, regenerative capacity, transparent physical appearance, ability to be genetically manipulated, and ease of housing and care make them feasible and efficient experimental models. Nonetheless, their most esteemed asset is their 70% (+) genetic similarity with the human genome, which allows the model to be used in a variety of clinically relevant studies. With these attributes, we propose the zebrafish is an excellent model for analyzing cognitive and neuromuscular responses when exposed to toxicants. Neurocognition can be readily analyzed using visual discrimination, memory and learning, and social behavior testing. Neuromuscular function can be analyzed using techniques such as the startle response, assessment of activity level, and evaluation of critical swimming speed. Furthermore, selectively mutated zebrafish is another novel application of this species in behavioral and pharmacological studies, which can be exploited in toxicological studies. There is a critical need in biomedical research to discover ethical and cost-effective methods to develop new products, including drugs. Through mutagenesis, zebrafish models have become key in meeting this need by advancing the field in numerous areas of biomedical research.
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Affiliation(s)
| | - Jakob Paz
- Florida College, Temple Terrace, FL, USA
| | | | | | - A Wallace Hayes
- College of Public Health, University of South Florida, Temple Terrace, FL, USA
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Printzi A, Mazurais D, Witten PE, Madec L, Gonzalez AA, Mialhe X, Zambonino-Infante JL, Koumoundouros G. Juvenile zebrafish (Danio rerio) are able to recover from lordosis. Sci Rep 2022; 12:21533. [PMID: 36513797 PMCID: PMC9748118 DOI: 10.1038/s41598-022-26112-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
Haemal lordosis, a frequent skeletal deformity in teleost fish, has long been correlated with increased mechanical loads induced by swimming activity. In the present study, we examine whether juvenile zebrafish can recover from haemal lordosis and explore the musculoskeletal mechanisms involved. Juveniles were subjected to a swimming challenge test (SCT) that induced severe haemal lordosis in 49% of the animals and then immediately transferred them to 0.0 total body lengths (TL) per second of water velocity for a week. The recovery from lordosis was examined by means of whole mount staining, histology and gene expression analysis. Results demonstrate that 80% of the lordotic zebrafish are capable of internal and external recovery within a week after the SCT. Recovered individuals presented normal shape of the vertebral centra, maintaining though distorted internal tissue organization. Through the transcriptomic analysis of the affected haemal regions, several processes related to chromosome organization, DNA replication, circadian clock and transcription regulation were enriched within genes significantly regulated behind this musculoskeletal recovery procedure. Genes especially involved in adipogenesis, bone remodeling and muscular regeneration were regulated. A remodeling tissue-repair hypothesis behind haemal lordosis recovery is raised. Limitations and future possibilities for zebrafish as a model organism to clarify mechanically driven musculoskeletal changes are discussed.
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Affiliation(s)
- A. Printzi
- grid.8127.c0000 0004 0576 3437Biology Department, University of Crete, Crete, Greece ,grid.463763.30000 0004 0638 0577IFREMER, University of Brest, CNRS, IRD, LEMAR, 29280 Plouzané, France
| | - D. Mazurais
- grid.463763.30000 0004 0638 0577IFREMER, University of Brest, CNRS, IRD, LEMAR, 29280 Plouzané, France
| | - P. E. Witten
- grid.5342.00000 0001 2069 7798Department of Biology, Gent University, Gent, Belgium
| | - L. Madec
- grid.463763.30000 0004 0638 0577IFREMER, University of Brest, CNRS, IRD, LEMAR, 29280 Plouzané, France
| | - A.-A. Gonzalez
- grid.121334.60000 0001 2097 0141MGX-Montpellier GenomiX, CNRS, INSERM, Univ. Montpellier, Montpellier, France
| | - X. Mialhe
- grid.121334.60000 0001 2097 0141MGX-Montpellier GenomiX, CNRS, INSERM, Univ. Montpellier, Montpellier, France
| | - J.-L. Zambonino-Infante
- grid.463763.30000 0004 0638 0577IFREMER, University of Brest, CNRS, IRD, LEMAR, 29280 Plouzané, France
| | - G. Koumoundouros
- grid.8127.c0000 0004 0576 3437Biology Department, University of Crete, Crete, Greece
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Pai VP, Cooper BG, Levin M. Screening Biophysical Sensors and Neurite Outgrowth Actuators in Human Induced-Pluripotent-Stem-Cell-Derived Neurons. Cells 2022; 11:cells11162470. [PMID: 36010547 PMCID: PMC9406775 DOI: 10.3390/cells11162470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/26/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
All living cells maintain a charge distribution across their cell membrane (membrane potential) by carefully controlled ion fluxes. These bioelectric signals regulate cell behavior (such as migration, proliferation, differentiation) as well as higher-level tissue and organ patterning. Thus, voltage gradients represent an important parameter for diagnostics as well as a promising target for therapeutic interventions in birth defects, injury, and cancer. However, despite much progress in cell and molecular biology, little is known about bioelectric states in human stem cells. Here, we present simple methods to simultaneously track ion dynamics, membrane voltage, cell morphology, and cell activity (pH and ROS), using fluorescent reporter dyes in living human neurons derived from induced neural stem cells (hiNSC). We developed and tested functional protocols for manipulating ion fluxes, membrane potential, and cell activity, and tracking neural responses to injury and reinnervation in vitro. Finally, using morphology sensor, we tested and quantified the ability of physiological actuators (neurotransmitters and pH) to manipulate nerve repair and reinnervation. These methods are not specific to a particular cell type and should be broadly applicable to the study of bioelectrical controls across a wide range of combinations of models and endpoints.
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Affiliation(s)
- Vaibhav P. Pai
- Allen Discovery Center at Tufts University, Medford, MA 02155, USA
| | - Ben G. Cooper
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA
| | - Michael Levin
- Allen Discovery Center at Tufts University, Medford, MA 02155, USA
- Correspondence:
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10
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Niesler CU, van de Vyver M. Editorial Regeneration in Health and Disease. Biochimie 2022; 196:121-122. [PMID: 35358661 DOI: 10.1016/j.biochi.2022.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Carola U Niesler
- Discipline of Biochemistry, School of Life Sciences, University of KwaZulu Natal, Scottsville, South Africa.
| | - Mari van de Vyver
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
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