1
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Grigoryan EN, Markitantova YV. Tail and Spinal Cord Regeneration in Urodelean Amphibians. Life (Basel) 2024; 14:594. [PMID: 38792615 PMCID: PMC11122520 DOI: 10.3390/life14050594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/21/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
Urodelean amphibians can regenerate the tail and the spinal cord (SC) and maintain this ability throughout their life. This clearly distinguishes these animals from mammals. The phenomenon of tail and SC regeneration is based on the capability of cells involved in regeneration to dedifferentiate, enter the cell cycle, and change their (or return to the pre-existing) phenotype during de novo organ formation. The second critical aspect of the successful tail and SC regeneration is the mutual molecular regulation by tissues, of which the SC and the apical wound epidermis are the leaders. Molecular regulatory systems include signaling pathways components, inflammatory factors, ECM molecules, ROS, hormones, neurotransmitters, HSPs, transcriptional and epigenetic factors, etc. The control, carried out by regulatory networks on the feedback principle, recruits the mechanisms used in embryogenesis and accompanies all stages of organ regeneration, from the moment of damage to the completion of morphogenesis and patterning of all its structures. The late regeneration stages and the effects of external factors on them have been poorly studied. A new model for addressing this issue is herein proposed. The data summarized in the review contribute to understanding a wide range of fundamentally important issues in the regenerative biology of tissues and organs in vertebrates including humans.
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Affiliation(s)
| | - Yuliya V. Markitantova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
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2
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Djhsp60 Is Required for Planarian Regeneration and Homeostasis. Biomolecules 2022; 12:biom12060808. [PMID: 35740934 PMCID: PMC9221281 DOI: 10.3390/biom12060808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
HSP60, a well-known mitochondrial chaperone, is essential for mitochondrial homeostasis. HSP60 deficiency causes dysfunction of the mitochondria and is lethal to animal survival. Here, we used freshwater planarian as a model system to investigate and uncover the roles of HSP60 in tissue regeneration and homeostasis. HSP60 protein is present in all types of cells in planarians, but it is relatively rich in stem cells and head neural cells. Knockdown of HSP60 by RNAi causes head regression and the loss of regenerating abilities, which is related to decrease in mitotic cells and inhibition of stem cell-related genes. RNAi-HSP60 disrupts the structure of the mitochondria and inhibits the mitochondrial-related genes, which mainly occur in intestinal tissues. RNAi-HSP60 also damages the integrity of intestinal tissues and downregulates intestine-expressed genes. More interestingly, RNAi-HSP60 upregulates the expression of the cathepsin L-like gene, which may be the reason for head regression and necrotic-like cell death. Taking these points together, we propose a model illustrating the relationship between neoblasts and intestinal cells, and also highlight the essential role of the intestinal system in planarian regeneration and tissue homeostasis.
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3
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Chapman PA, Gilbert CB, Devine TJ, Hudson DT, Ward J, Morgan XC, Beck CW. Manipulating the microbiome alters regenerative outcomes in Xenopus laevis tadpoles via lipopolysaccharide signalling. Wound Repair Regen 2022; 30:636-651. [PMID: 35212086 PMCID: PMC9790228 DOI: 10.1111/wrr.13003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/23/2022] [Accepted: 01/28/2022] [Indexed: 12/30/2022]
Abstract
Xenopus laevis tadpoles can regenerate functional tails, containing the spinal cord, notochord, muscle, fin, blood vessels and nerves, except for a brief refractory period at around 1 week of age. At this stage, amputation of the tadpole's tail may either result in scarless wound healing or the activation of a regeneration programme, which replaces the lost tissues. We recently demonstrated a link between bacterial lipopolysaccharides and successful tail regeneration in refractory stage tadpoles and proposed that this could result from lipopolysaccharides binding to Toll-like receptor 4 (TLR4). Here, we have used 16S rRNA sequencing to show that the tadpole skin microbiome is highly variable between sibships and that the community can be altered by raising embryos in the antibiotic gentamicin. Six Gram-negative genera, including Delftia and Chryseobacterium, were over-represented in tadpoles that underwent tail regeneration. Lipopolysaccharides purified from a commensal Chryseobacterium spp. XDS4, an exogenous Delftia spp. or Escherichia coli, could significantly increase the number of antibiotic-raised tadpoles that attempted regeneration. Conversely, the quality of regeneration was impaired in native-raised tadpoles exposed to the antagonistic lipopolysaccharide of Rhodobacter sphaeroides. Editing TLR4 using CRISPR/Cas9 also reduced regeneration quality, but not quantity, at the level of the cohort. However, we found that the editing level of individual tadpoles was a poor predictor of regenerative outcome. In conclusion, our results suggest that variable regeneration in refractory stage tadpoles depends at least in part on the skin microbiome and lipopolysaccharide signalling, but that signalling via TLR4 cannot account for all of this effect.
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Affiliation(s)
| | | | - Thomas J. Devine
- Department of Microbiology and ImmunologyUniversity of OtagoDunedinNew Zealand
| | - Daniel T. Hudson
- Department of ZoologyUniversity of OtagoDunedinNew Zealand,Department of Microbiology and ImmunologyUniversity of OtagoDunedinNew Zealand
| | - Joanna Ward
- Department of ZoologyUniversity of OtagoDunedinNew Zealand
| | - Xochitl C. Morgan
- Department of Microbiology and ImmunologyUniversity of OtagoDunedinNew Zealand
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4
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Lin YF, Sam J, Evans T. Sirt1 promotes tissue regeneration in zebrafish through regulating the mitochondrial unfolded protein response. iScience 2021; 24:103118. [PMID: 34622167 PMCID: PMC8479786 DOI: 10.1016/j.isci.2021.103118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 08/12/2021] [Accepted: 09/09/2021] [Indexed: 11/16/2022] Open
Abstract
The mitochondrial unfolded protein response (UPRmt) is an organellar stress signaling pathway that functions to detect and restore disruption of mitochondrial proteostasis. The UPRmt is involved in a wide range of physiological and disease conditions, including aging, stem cell maintenance, innate immunity, neurodegeneration, and cancer. Here we report that the UPRmt is integral to zebrafish fin regeneration. Taking advantage of a novel zebrafish UPRmt reporter, we observed that UPRmt activation occurs in regenerating fin tissue shortly after injury. Through chemical and genetic approaches, we discovered that the Sirt1-UPRmt pathway, best known for its role in promoting lifespan extension, is crucial for fin regeneration. The metabolism of NAD+ is an important contributor to Sirt1 activity in this context. We propose that Sirt1 activation induces mitochondrial biogenesis in injured fin tissue, which leads to UPRmt activation and promotes tissue regeneration.
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Affiliation(s)
- Yi-Fan Lin
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, LC-708, New York, NY 10065, USA
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, 30013, Taiwan
- Department of Life Science, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Jessica Sam
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, LC-708, New York, NY 10065, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, LC-708, New York, NY 10065, USA
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5
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Ribeiro AO, de Oliveira AC, Costa JM, Nachtigall PG, Herkenhoff ME, Campos VF, Delella FK, Pinhal D. MicroRNA roles in regeneration: Multiple lessons from zebrafish. Dev Dyn 2021; 251:556-576. [PMID: 34547148 DOI: 10.1002/dvdy.421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/23/2021] [Accepted: 09/07/2021] [Indexed: 12/23/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs with pivotal roles in the control of gene expression. By comparing the miRNA profiles of uninjured vs. regenerating tissues and structures, several studies have found that miRNAs are potentially involved in the regenerative process. By inducing miRNA overexpression or inhibition, elegant experiments have directed regenerative responses validating relevant miRNA-to-target interactions. The zebrafish (Danio rerio) has been the epicenter of regenerative research because of its exceptional capability to self-repair damaged tissues and body structures. In this review, we discuss recent discoveries that have improved our understanding of the impact of gene regulation mediated by miRNAs in the context of the regeneration of fins, heart, retina, and nervous tissue in zebrafish. We compiled what is known about the miRNA control of regeneration in these tissues and investigated the links among up-regulated and down-regulated miRNAs, their putative or validated targets, and the regenerative process. Finally, we briefly discuss the forthcoming prospects, highlighting directions and the potential for further development of this field.
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Affiliation(s)
- Amanda Oliveira Ribeiro
- Laboratório Genômica e Evolução Molecular (LGEM), Departamento de Ciências Químicas e Biológicas, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil
| | - Arthur Casulli de Oliveira
- Laboratório Genômica e Evolução Molecular (LGEM), Departamento de Ciências Químicas e Biológicas, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil
| | - Juliana Mara Costa
- Laboratório Genômica e Evolução Molecular (LGEM), Departamento de Ciências Químicas e Biológicas, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil
| | - Pedro Gabriel Nachtigall
- Laboratório Genômica e Evolução Molecular (LGEM), Departamento de Ciências Químicas e Biológicas, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil.,Laboratório Especial de Toxicologia Aplicada (LETA), CeTICS, Instituto Butantan, São Paulo, SP, Brazil
| | - Marcos Edgar Herkenhoff
- Laboratório Genômica e Evolução Molecular (LGEM), Departamento de Ciências Químicas e Biológicas, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil.,Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vinicius Farias Campos
- Laboratório de Genômica Estrutural, Programa de Pós-Graduação em Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Flávia Karina Delella
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil
| | - Danillo Pinhal
- Laboratório Genômica e Evolução Molecular (LGEM), Departamento de Ciências Químicas e Biológicas, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Botucatu, SP, Brazil
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6
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Allanki S, Strilic B, Scheinberger L, Onderwater YL, Marks A, Günther S, Preussner J, Kikhi K, Looso M, Stainier DYR, Reischauer S. Interleukin-11 signaling promotes cellular reprogramming and limits fibrotic scarring during tissue regeneration. SCIENCE ADVANCES 2021; 7:eabg6497. [PMID: 34516874 PMCID: PMC8442930 DOI: 10.1126/sciadv.abg6497] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 07/16/2021] [Indexed: 05/02/2023]
Abstract
Damage-induced fibrotic scarring limits tissue regeneration in mammals and is a leading cause of morbidity. In contrast, species like zebrafish can regenerate damaged tissues without excessive fibrosis. However, whether specific signaling pathways can both limit fibrosis and promote regeneration is unclear. Here, we show that interleukin-11 (Il-11)/Stat3 signaling has such a dual function. Zebrafish lacking Il-11 receptor function display severely compromised heart, fin, and scale regeneration. Deep phenotyping and transcriptional analysis of adult hearts and fins show that Il-11 signaling drives cellular reprogramming to orchestrate global and tissue-specific regenerative programs and broadly antagonizes hallmarks of adult mammalian scarring. Mechanistically, our data indicate that IL-11 signaling in endothelial cells antagonizes profibrotic transforming growth factor–β signaling and endothelial-to-mesenchymal transition, limiting scarring and promoting cardiomyocyte repopulation, after injury. Overall, our findings position damage-induced Il-11/Stat3 signaling in a key role limiting fibrosis and promoting regeneration, revealing novel targets for regenerative therapies.
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Affiliation(s)
- Srinivas Allanki
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 60596 Frankfurt am Main, Germany
- Medical Clinic I (Cardiology/Angiology) and Campus Kerckhoff, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Boris Strilic
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Lilly Scheinberger
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Yeszamin L. Onderwater
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Alora Marks
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Stefan Günther
- Bioinformatics and Deep Sequencing Platform, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Jens Preussner
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 60596 Frankfurt am Main, Germany
- Bioinformatics Core Unit (BCU), Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Khrievono Kikhi
- Flow Cytometry Service Group, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Mario Looso
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 60596 Frankfurt am Main, Germany
- Bioinformatics Core Unit (BCU), Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Didier Y. R. Stainier
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 60596 Frankfurt am Main, Germany
- Cardio-Pulmonary Institute, Frankfurt, Germany
| | - Sven Reischauer
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
- Medical Clinic I (Cardiology/Angiology) and Campus Kerckhoff, Justus-Liebig-University Giessen, 35392 Giessen, Germany
- Cardio-Pulmonary Institute, Frankfurt, Germany
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7
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Tellez-Garcia AA, Álvarez-Martínez R, López-Martínez JM, Arellano-Carbajal F. Transcriptome analysis during early regeneration of Lumbriculus variegatus. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Debuque RJ, Nowoshilow S, Chan KE, Rosenthal NA, Godwin JW. Distinct toll-like receptor signaling in the salamander response to tissue damage. Dev Dyn 2021; 251:988-1003. [PMID: 33797128 DOI: 10.1002/dvdy.340] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/10/2021] [Accepted: 03/29/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Efficient wound healing or pathogen clearance both rely on balanced inflammatory responses. Inflammation is essential for effective innate immune-cell recruitment; however, excessive inflammation will result in local tissue destruction, pathogen egress, and ineffective pathogen clearance. Sterile and nonsterile inflammation operate with competing functional priorities but share common receptors and overlapping signal transduction pathways. In regenerative organisms such as the salamander, whole limbs can be replaced after amputation while exposed to a nonsterile environment. In mammals, exposure to sterile-injury Damage Associated Molecular Patterns (DAMPS) alters innate immune-cell responsiveness to secondary Pathogen Associated Molecular Pattern (PAMP) exposure. RESULTS Using new phospho-flow cytometry techniques to measure signaling in individual cell subsets we compared mouse to salamander inflammation. These studies demonstrated evolutionarily conserved responses to PAMP ligands through toll-like receptors (TLRs) but identified key differences in response to DAMP ligands. Co-exposure of macrophages to DAMPs/PAMPs suppressed MAPK signaling in mammals, but not salamanders, which activate sustained MAPK stimulation in the presence of endogenous DAMPS. CONCLUSIONS These results reveal an alternative signal transduction network compatible with regeneration that may ultimately lead to the promotion of enhanced tissue repair in mammals.
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Affiliation(s)
- Ryan J Debuque
- Australian Regenerative Medicine Institute (ARMI), Monash University, Melbourne, Victoria, Australia
| | - Sergej Nowoshilow
- The Research Institute of Molecular Pathology (IMP), Vienna, Austria
| | | | | | - James W Godwin
- Australian Regenerative Medicine Institute (ARMI), Monash University, Melbourne, Victoria, Australia.,The Jackson Laboratory, Bar Harbour, Maine, USA.,The MDI Biological Laboratory (MDIBL), Salisbury Cove, Maine, USA
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9
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Daponte V, Tylzanowski P, Forlino A. Appendage Regeneration in Vertebrates: What Makes This Possible? Cells 2021; 10:cells10020242. [PMID: 33513779 PMCID: PMC7911911 DOI: 10.3390/cells10020242] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/18/2021] [Accepted: 01/22/2021] [Indexed: 12/26/2022] Open
Abstract
The ability to regenerate amputated or injured tissues and organs is a fascinating property shared by several invertebrates and, interestingly, some vertebrates. The mechanism of evolutionary loss of regeneration in mammals is not understood, yet from the biomedical and clinical point of view, it would be very beneficial to be able, at least partially, to restore that capability. The current availability of new experimental tools, facilitating the comparative study of models with high regenerative ability, provides a powerful instrument to unveil what is needed for a successful regeneration. The present review provides an updated overview of multiple aspects of appendage regeneration in three vertebrates: lizard, salamander, and zebrafish. The deep investigation of this process points to common mechanisms, including the relevance of Wnt/β-catenin and FGF signaling for the restoration of a functional appendage. We discuss the formation and cellular origin of the blastema and the identification of epigenetic and cellular changes and molecular pathways shared by vertebrates capable of regeneration. Understanding the similarities, being aware of the differences of the processes, during lizard, salamander, and zebrafish regeneration can provide a useful guide for supporting effective regenerative strategies in mammals.
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Affiliation(s)
- Valentina Daponte
- Biochemistry Unit, Department of Molecular Medicine, University of Pavia, via Taramelli 3/B, 27100 Pavia, Italy;
| | - Przemko Tylzanowski
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, University of Leuven, 3000 Leuven, Belgium;
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Antonella Forlino
- Biochemistry Unit, Department of Molecular Medicine, University of Pavia, via Taramelli 3/B, 27100 Pavia, Italy;
- Correspondence: ; Tel.: +39-0382-987235
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10
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The transcriptome of anterior regeneration in earthworm Eudrilus eugeniae. Mol Biol Rep 2020; 48:259-283. [PMID: 33306150 DOI: 10.1007/s11033-020-06044-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/28/2020] [Indexed: 12/25/2022]
Abstract
The oligochaete earthworm, Eudrilus eugeniae is capable of regenerating both anterior and posterior segments. The present study focuses on the transcriptome analysis of earthworm E. eugeniae to identify and functionally annotate the key genes supporting the anterior blastema formation and regulating the anterior regeneration of the worm. The Illumina sequencing generated a total of 91,593,182 raw reads which were assembled into 105,193 contigs using CLC genomics workbench. In total, 40,946 contigs were annotated against the NCBI nr and SwissProt database and among them, 15,702 contigs were assigned to 14,575 GO terms. Besides a total of 9389 contigs were mapped to 416 KEGG biological pathways. The RNA-Seq comparison study identified 10,868 differentially expressed genes (DEGs) and of them, 3986 genes were significantly upregulated in the anterior regenerated blastema tissue samples of the worm. The GO enrichment analysis showed angiogenesis and unfolded protein binding as the top enriched functions and the pathway enrichment analysis denoted TCA cycle as the most significantly enriched pathway associated with the upregulated gene dataset of the worm. The identified DEGs and their function and pathway information can be effectively utilized further to interpret the key cellular, genetic and molecular events associated with the regeneration of the worm.
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11
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Enomoto H, Mittal N, Inomata T, Arimura T, Izumi T, Kimura A, Fukuda K, Makino S. Dilated cardiomyopathy-linked heat shock protein family D member 1 mutations cause up-regulation of reactive oxygen species and autophagy through mitochondrial dysfunction. Cardiovasc Res 2020; 117:1118-1131. [PMID: 32520982 DOI: 10.1093/cvr/cvaa158] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 07/01/2019] [Accepted: 06/04/2020] [Indexed: 01/08/2023] Open
Abstract
AIMS During heart failure, the levels of circulatory heat shock protein family D member 1 (HSP60) increase. However, its underlying mechanism is still unknown. The apical domain of heat shock protein family D member 1 (HSPD1) is conserved throughout evolution. We found a point mutation in HSPD1 in a familial dilated cardiomyopathy (DCM) patient. A similar point mutation in HSPD1 in the zebrafish mutant, nbl, led to loss of its regenerative capacity and development of pericardial oedema under heat stress condition. In this study, we aimed to determine the direct involvement of HSPD1 in the development of DCM. METHODS AND RESULTS By Sanger method, we found a point mutation (Thr320Ala) in the apical domain of HSPD1, in one familial DCM patient, which was four amino acids away from the point mutation (Val324Glu) in the nbl mutant zebrafish. The nbl mutants showed atrio-ventricular block and sudden death at 8-month post-fertilization. Histological and microscopic analysis of the nbl mutant hearts showed decreased ventricular wall thickness, elevated level of reactive oxygen species (ROS), increased fibrosis, mitochondrial damage, and increased autophagosomes. mRNA and protein expression of autophagy-related genes significantly increased in nbl mutants. We established HEK293 stable cell lines of wild-type, nbl-type, and DCM-type HSPD1, with tetracycline-dependent expression. Compared to wild-type, both nbl- and DCM-type cells showed decreased cell growth, increased expression of ROS and autophagy-related genes, inhibition of the activity of mitochondrial electron transport chain complexes III and IV, and decreased mitochondrial fission and fusion. CONCLUSION Mutations in HSPD1 caused mitochondrial dysfunction and induced mitophagy. Mitochondrial dysfunction caused increased ROS and cardiac atrophy.
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Affiliation(s)
- Hirokazu Enomoto
- Department of Cardiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Nishant Mittal
- Department of Cardiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Takayuki Inomata
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Kanagawa 252-0374, Japan
| | - Takuro Arimura
- Department of Molecular Pathogenesis, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Tohru Izumi
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Kanagawa 252-0374, Japan
| | - Akinori Kimura
- Department of Molecular Pathogenesis, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shinji Makino
- Department of Cardiology, Keio University School of Medicine, Tokyo 160-8582, Japan.,Health Center, Keio University, Tokyo 160-8582, Japan
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12
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An in vivo brain-bacteria interface: the developing brain as a key regulator of innate immunity. NPJ Regen Med 2020; 5:2. [PMID: 32047653 PMCID: PMC7000827 DOI: 10.1038/s41536-020-0087-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 12/20/2019] [Indexed: 01/11/2023] Open
Abstract
Infections have numerous effects on the brain. However, possible roles of the brain in protecting against infection, and the developmental origin and role of brain signaling in immune response, are largely unknown. We exploited a unique Xenopus embryonic model to reveal control of innate immune response to pathogenic E. coli by the developing brain. Using survival assays, morphological analysis of innate immune cells and apoptosis, and RNA-seq, we analyzed combinations of infection, brain removal, and tail-regenerative response. Without a brain, survival of embryos injected with bacteria decreased significantly. The protective effect of the developing brain was mediated by decrease of the infection-induced damage and of apoptosis, and increase of macrophage migration, as well as suppression of the transcriptional consequences of the infection, all of which decrease susceptibility to pathogen. Functional and pharmacological assays implicated dopamine signaling in the bacteria–brain–immune crosstalk. Our data establish a model that reveals the very early brain to be a central player in innate immunity, identify the developmental origins of brain–immune interactions, and suggest several targets for immune therapies.
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13
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Mishra R, Sehring I, Cederlund M, Mulaw M, Weidinger G. NF-κB Signaling Negatively Regulates Osteoblast Dedifferentiation during Zebrafish Bone Regeneration. Dev Cell 2020; 52:167-182.e7. [DOI: 10.1016/j.devcel.2019.11.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 09/27/2019] [Accepted: 11/21/2019] [Indexed: 01/08/2023]
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14
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Hsueh MF, Önnerfjord P, Bolognesi MP, Easley ME, Kraus VB. Analysis of "old" proteins unmasks dynamic gradient of cartilage turnover in human limbs. SCIENCE ADVANCES 2019; 5:eaax3203. [PMID: 31633025 PMCID: PMC6785252 DOI: 10.1126/sciadv.aax3203] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 09/10/2019] [Indexed: 05/23/2023]
Abstract
Unlike highly regenerative animals, such as axolotls, humans are believed to be unable to counteract cumulative damage, such as repetitive joint use and injury that lead to the breakdown of cartilage and the development of osteoarthritis. Turnover of insoluble collagen has been suggested to be very limited in human adult cartilage. The goal of this study was to explore protein turnover in articular cartilage from human lower limb joints. Analyzing molecular clocks in the form of nonenzymatically deamidated proteins, we unmasked a position-dependent gradient (distal high, proximal low) of protein turnover, indicative of a gradient of tissue anabolism reflecting innate tissue repair capacity in human lower limb cartilages that is associated with expression of limb-regenerative microRNAs. This association shows a potential link to a capacity, albeit limited, for regeneration that might be exploited to enhance joint repair and establish a basis for human limb regeneration.
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Affiliation(s)
- Ming-Feng Hsueh
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
| | | | - Michael P. Bolognesi
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
| | - Mark E. Easley
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
| | - Virginia B. Kraus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
- Division of Rheumatology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA
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15
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Chromatin dynamics underlying the precise regeneration of a vertebrate limb - Epigenetic regulation and cellular memory. Semin Cell Dev Biol 2019; 97:16-25. [PMID: 30991117 DOI: 10.1016/j.semcdb.2019.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/01/2019] [Accepted: 04/09/2019] [Indexed: 12/13/2022]
Abstract
Wound healing, tissue regeneration, and organ regrowth are all regeneration phenomena observed in vertebrates after an injury. However, the ability to regenerate differs greatly among species. Mammals can undergo wound healing and tissue regeneration, but cannot regenerate an organ; for example, they cannot regrow an amputated limb. In contrast, amphibians and fish have much higher capabilities for organ-level regeneration. In addition to medical studies and those in conventional mammalian models such as mice, studies in amphibians and fish have revealed essential factors for and mechanisms of regeneration, including the regrowth of a limb, tail, or fin. However, the molecular nature of the cellular memory needed to precisely generate a new appendage from an amputation site is not fully understood. Recent reports have indicated that organ regeneration is closely related to epigenetic regulation. For example, the methylation status of genomic DNA is related to the expression of regeneration-related genes, and histone-modification enzymes are required to control the chromatin dynamics for regeneration. A proposed mechanism of cellular memory involving an inheritable system of epigenetic modification led us to hypothesize that epigenetic regulation forms the basis for cellular memory in organ regeneration. Here we summarize the current understanding of the role of epigenetic regulation in organ regeneration and discuss the relationship between organ regeneration and epigenetic memory.
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16
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Mokalled MH, Poss KD. A Regeneration Toolkit. Dev Cell 2019; 47:267-280. [PMID: 30399333 DOI: 10.1016/j.devcel.2018.10.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 12/13/2022]
Abstract
The ability of animals to replace injured body parts has been a subject of fascination for centuries. The emerging importance of regenerative medicine has reinvigorated investigations of innate tissue regeneration, and the development of powerful genetic tools has fueled discoveries into how tissue regeneration occurs. Here, we present an overview of the armamentarium employed to probe regeneration in vertebrates, highlighting areas where further methodology advancement will deepen mechanistic findings.
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Affiliation(s)
- Mayssa H Mokalled
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA.
| | - Kenneth D Poss
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA; Regeneration Next, Duke University, Durham, NC 27710, USA.
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Cakmak YO. A Review of the Potential Effect of Electroacupuncture and Moxibustion on Cell Repair and Survival: The Role of Heat Shock Proteins. Acupunct Med 2018; 27:183-6. [DOI: 10.1136/aim.2009.001420] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
In recent years, a considerable amount of research has been focused on the underlying mechanisms of electroacupuncture and moxibustion assisted tissue repair. Intracellular protein denaturation is a significant pathological step of acute conditions such as stroke, myocardial infarction and acute pancreatitis. Protein aggregation can be observed after the protein denaturation step in chronic diseases of the central nervous system like Alzheimer's and Parkinson's disease, and also in other chronic system diseases including cataract formation. Heat shock proteins (HSPs) are fundamental for intracellular protein repair and work by preventing protein aggregation and assisting denaturated proteins to refold. Further, HSPs can also function for extracellular cell signalling. The focus of this review is to analyse the data studying electroacupuncture and moxibustion induced HSPs, and how acupuncture can survive cells from apoptosis under stress.
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Abstract
Understanding how and why animals regenerate complex tissues has the potential to transform regenerative medicine. Here we present an overview of genetic approaches that have recently been applied to dissect mechanisms of regeneration. We describe new advances that relate to central objectives of regeneration biologists researching different tissues and species, focusing mainly on vertebrates. These objectives include defining the cellular sources and key cell behaviors in regenerating tissue, elucidating molecular triggers and brakes for regeneration, and defining the earliest events that control the presence of these molecular factors.
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Affiliation(s)
- Chen-Hui Chen
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan;
| | - Kenneth D Poss
- Department of Cell Biology, Duke University Medical Center, Durham, North Carolina 27710, USA;
- Regeneration Next, Duke University, Durham, North Carolina 27710, USA
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Radugina E, Grigoryan E. Heat shock response and shape regulation during newt tail regeneration. J Therm Biol 2017; 71:171-179. [PMID: 29301687 DOI: 10.1016/j.jtherbio.2017.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 11/19/2017] [Indexed: 01/10/2023]
Abstract
Regenerating newt tail has recently been found to react to hypergravity in a stable and reproducible way - by curving downwards. Such morphogenetic effect of non-specific physical factor applied to a complex structure of an adult animal is a rare phenomenon with unknown molecular basis. For the first steps of unraveling this basis we've chosen heat shock proteins (HSPs) as promising candidates. Morphometrical analysis of tail regeneration was performed in aquarium (control), on substrate (relative hypergravity) and in aquarium under weekly application of heat shock. HSPs were inhibited pharmacologically during regeneration in aquarium and on substrate. Hsp70, 90 gene expression and protein localization were analyzed in the studied conditions. Weekly application of heat shock to newts regenerating tails in otherwise normal conditions led to development of curved tails (both upwards and downwards), suggesting that similar mechanisms are at play in both hypergravity-altered and heat shock-altered morphogenesis. Heat shock protein inhibitor KNK437 didn't affect tail shape during normal regeneration, but prevented the formation of tail curve in appropriate conditions. It was shown that HSP70 and HSP90 proteins are present in muscle and connective tissue of intact tails as well as regenerates, but only appear in epidermis in hypergravity-altered regenerates and heated tails. Based on our data, we hypothesize, that different external factors (e.g. hypergravity and heat shock) are received, analyzed and transmitted further to affect morphogenesis by similar mechanisms that utilize a set of HSP in epidermal cells.
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Affiliation(s)
- Elena Radugina
- Koltzov Institute of Developmental Biology RAS (IDB RAS), 26 Vavilova street, Moscow 119334, Russia.
| | - Eleonora Grigoryan
- Koltzov Institute of Developmental Biology RAS (IDB RAS), 26 Vavilova street, Moscow 119334, Russia.
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Sifuentes CJ, Kim JW, Swaroop A, Raymond PA. Rapid, Dynamic Activation of Müller Glial Stem Cell Responses in Zebrafish. Invest Ophthalmol Vis Sci 2017; 57:5148-5160. [PMID: 27699411 PMCID: PMC5054728 DOI: 10.1167/iovs.16-19973] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Purpose Zebrafish neurons regenerate from Müller glia following retinal lesions. Genes and signaling pathways important for retinal regeneration in zebrafish have been described, but our understanding of how Müller glial stem cell properties are regulated is incomplete. Mammalian Müller glia possess a latent neurogenic capacity that might be enhanced in regenerative therapies to treat degenerative retinal diseases. Methods To identify transcriptional changes associated with stem cell properties in zebrafish Müller glia, we performed a comparative transcriptome analysis from isolated cells at 8 and 16 hours following an acute photic lesion, prior to the asymmetric division that produces retinal progenitors. Results We report a rapid, dynamic response of zebrafish Müller glia, characterized by activation of pathways related to stress, nuclear factor–κB (NF-κB) signaling, cytokine signaling, immunity, prostaglandin metabolism, circadian rhythm, and pluripotency, and an initial repression of Wnt signaling. When we compared publicly available transcriptomes of isolated mouse Müller glia from two retinal degeneration models, we found that mouse Müller glia showed evidence of oxidative stress, variable responses associated with immune regulation, and repression of pathways associated with pluripotency, development, and proliferation. Conclusions Categories of biological processes/pathways activated following photoreceptor loss in regeneration-competent zebrafish Müller glia, which distinguished them from mouse Müller glia in retinal degeneration models, included cytokine signaling (notably NF-κB), prostaglandin E2 synthesis, expression of core clock genes, and pathways/metabolic states associated with pluripotency. These regulatory mechanisms are relatively unexplored as potential mediators of stem cell properties likely to be important in Müller glial cells for successful retinal regeneration.
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Affiliation(s)
- Christopher J Sifuentes
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, United States
| | - Jung-Woong Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, Korea 3Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Anand Swaroop
- Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Pamela A Raymond
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, United States
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Extracellular HSP60 triggers tissue regeneration and wound healing by regulating inflammation and cell proliferation. NPJ Regen Med 2016; 1. [PMID: 28936359 PMCID: PMC5605149 DOI: 10.1038/npjregenmed.2016.13] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
After injury, zebrafish can restore many tissues that do not regenerate well in mammals, making it a useful vertebrate model for studying regenerative biology. We performed a systematic screen to identify genes essential for hair cell regeneration in zebrafish, and found that the heat shock protein Hspd1 (Hsp60) has a critical role in the regeneration of hair cells and amputated caudal fins. We showed HSP60-injected extracellularly promoted cell proliferation and regeneration in both hair cells and caudal fins. We showed that hspd1 mutant was deficient in leukocyte infiltration at the site of injury. Topical application of HSP60 in a diabetic mouse skin wound model dramatically accelerated wound healing compared with controls. Stimulation of human peripheral blood mononuclear cells with HSP60 triggered a specific induction of M2 phase CD163-positive monocytes. Our results demonstrate that the normally intracellular chaperonin HSP60 has an extracellular signalling function in injury inflammation and tissue regeneration, likely through promoting the M2 phase for macrophages.
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Grillo M, Konstantinides N, Averof M. Old questions, new models: unraveling complex organ regeneration with new experimental approaches. Curr Opin Genet Dev 2016; 40:23-31. [DOI: 10.1016/j.gde.2016.05.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 05/12/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022]
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King BL, Yin VP. A Conserved MicroRNA Regulatory Circuit Is Differentially Controlled during Limb/Appendage Regeneration. PLoS One 2016; 11:e0157106. [PMID: 27355827 PMCID: PMC4927183 DOI: 10.1371/journal.pone.0157106] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/24/2016] [Indexed: 01/25/2023] Open
Abstract
Background Although regenerative capacity is evident throughout the animal kingdom, it is not equally distributed throughout evolution. For instance, complex limb/appendage regeneration is muted in mammals but enhanced in amphibians and teleosts. The defining characteristic of limb/appendage regenerative systems is the formation of a dedifferentiated tissue, termed blastema, which serves as the progenitor reservoir for regenerating tissues. In order to identify a genetic signature that accompanies blastema formation, we employ next-generation sequencing to identify shared, differentially regulated mRNAs and noncoding RNAs in three different, highly regenerative animal systems: zebrafish caudal fins, bichir pectoral fins and axolotl forelimbs. Results These studies identified a core group of 5 microRNAs (miRNAs) that were commonly upregulated and 5 miRNAs that were commonly downregulated, as well as 4 novel tRNAs fragments with sequences conserved with humans. To understand the potential function of these miRNAs, we built a network of 1,550 commonly differentially expressed mRNAs that had functional relationships to 11 orthologous blastema-associated genes. As miR-21 was the most highly upregulated and most highly expressed miRNA in all three models, we validated the expression of known target genes, including the tumor suppressor, pdcd4, and TGFβ receptor subunit, tgfbr2 and novel putative target genes such as the anti-apoptotic factor, bcl2l13, Choline kinase alpha, chka and the regulator of G-protein signaling, rgs5. Conclusions Our extensive analysis of RNA-seq transcriptome profiling studies in three regenerative animal models, that diverged in evolution ~420 million years ago, reveals a common miRNA-regulated genetic network of blastema genes. These comparative studies extend our current understanding of limb/appendage regeneration by identifying previously unassociated blastema genes and the extensive regulation by miRNAs, which could serve as a foundation for future functional studies to examine the process of natural cellular reprogramming in an injury context.
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Affiliation(s)
- Benjamin L. King
- Kathryn W. Davis Center for Regenerative Biology and Medicine, Mount Desert Island, Biological Laboratory, Salisbury Cove, Maine, United States of America
- Graduate School of Biomedical Science and Engineering, University of Maine, Orono, Maine, United States of America
| | - Viravuth P. Yin
- Kathryn W. Davis Center for Regenerative Biology and Medicine, Mount Desert Island, Biological Laboratory, Salisbury Cove, Maine, United States of America
- Graduate School of Biomedical Science and Engineering, University of Maine, Orono, Maine, United States of America
- * E-mail:
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24
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Bellipanni G, Cappello F, Scalia F, Conway de Macario E, Macario AJ, Giordano A. Zebrafish as a Model for the Study of Chaperonopathies. J Cell Physiol 2016; 231:2107-14. [DOI: 10.1002/jcp.25319] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 01/25/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Gianfranco Bellipanni
- Sbarro Institute for Cancer Research and Molecular Medicine; Philadelphia Pennsylvania
- Department of Biology; College of Science and Technology, Temple University; Philadelphia Pennsylvania
- Euro-Mediterranean Institute of Science and Technology (IEMEST); Palermo Italy
| | - Francesco Cappello
- Department of Biology; College of Science and Technology, Temple University; Philadelphia Pennsylvania
- Euro-Mediterranean Institute of Science and Technology (IEMEST); Palermo Italy
- Department of Experimental Biomedicine and Clinical Neuroscience; University of Palermo; Palermo Italy
| | - Federica Scalia
- Department of Experimental Biomedicine and Clinical Neuroscience; University of Palermo; Palermo Italy
| | - Everly Conway de Macario
- Department of Microbiology and Immunology; School of Medicine, University of Maryland at Baltimore and IMET; Baltimore Maryland
| | - Alberto J.L. Macario
- Euro-Mediterranean Institute of Science and Technology (IEMEST); Palermo Italy
- Department of Microbiology and Immunology; School of Medicine, University of Maryland at Baltimore and IMET; Baltimore Maryland
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine; Philadelphia Pennsylvania
- Department of Biology; College of Science and Technology, Temple University; Philadelphia Pennsylvania
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25
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Zhao C, Li H, Zhao XJ, Liu ZX, Zhou P, Liu Y, Feng MJ. Heat shock protein 60 affects behavioral improvement in a rat model of Parkinson’s disease grafted with human umbilical cord mesenchymal stem cell-derived dopaminergic-like neurons. Neurochem Res 2016; 41:1238-49. [DOI: 10.1007/s11064-015-1816-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 11/19/2015] [Accepted: 12/23/2015] [Indexed: 01/01/2023]
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26
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Nolte H, Hölper S, Housley MP, Islam S, Piller T, Konzer A, Stainier DYR, Braun T, Krüger M. Dynamics of zebrafish fin regeneration using a pulsed SILAC approach. Proteomics 2015; 15:739-51. [PMID: 25504979 DOI: 10.1002/pmic.201400316] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 12/08/2014] [Accepted: 12/10/2014] [Indexed: 01/03/2023]
Abstract
The zebrafish owns remarkable regenerative capacities allowing regeneration of several tissues, including the heart, liver, and brain. To identify protein dynamics during fin regeneration we used a pulsed SILAC approach that enabled us to detect the incorporation of (13) C6 -lysine (Lys6) into newly synthesized proteins. Samples were taken at four different time points from noninjured and regrowing fins and incorporation rates were monitored using a combination of single-shot 4-h gradients and high-resolution tandem MS. We identified more than 5000 labeled proteins during the first 3 weeks of fin regeneration and were able to monitor proteins that are responsible for initializing and restoring the shape of these appendages. The comparison of Lys6 incorporation rates between noninjured and regrowing fins enabled us to identify proteins that are directly involved in regeneration. For example, we observed increased incorporation rates of two actinodin family members at the actinotrichia, which is a hairlike fiber structure at the tip of regrowing fins. Moreover, we used quantitative real-time RNA measurements of several candidate genes, including osteoglycin, si:ch211-288h17.3, and prostaglandin reductase 1 to correlate the mRNA expression to Lys6 incorporation data. This novel pulsed SILAC methodology in fish can be used as a versatile tool to monitor newly synthesized proteins and will help to characterize protein dynamics during regenerative processes in zebrafish beyond fin regeneration.
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Affiliation(s)
- Hendrik Nolte
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
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27
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Chen CH, Merriman AF, Savage J, Willer J, Wahlig T, Katsanis N, Yin VP, Poss KD. Transient laminin beta 1a Induction Defines the Wound Epidermis during Zebrafish Fin Regeneration. PLoS Genet 2015; 11:e1005437. [PMID: 26305099 PMCID: PMC4549328 DOI: 10.1371/journal.pgen.1005437] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 07/10/2015] [Indexed: 12/12/2022] Open
Abstract
The first critical stage in salamander or teleost appendage regeneration is creation of a specialized epidermis that instructs growth from underlying stump tissue. Here, we performed a forward genetic screen for mutations that impair this process in amputated zebrafish fins. Positional cloning and complementation assays identified a temperature-sensitive allele of the ECM component laminin beta 1a (lamb1a) that blocks fin regeneration. lamb1a, but not its paralog lamb1b, is sharply induced in a subset of epithelial cells after fin amputation, where it is required to establish and maintain a polarized basal epithelial cell layer. These events facilitate expression of the morphogenetic factors shha and lef1, basolateral positioning of phosphorylated Igf1r, patterning of new osteoblasts, and regeneration of bone. By contrast, lamb1a function is dispensable for juvenile body growth, homeostatic adult tissue maintenance, repair of split fins, or renewal of genetically ablated osteoblasts. fgf20a mutations or transgenic Fgf receptor inhibition disrupt lamb1a expression, linking a central growth factor to epithelial maturation during regeneration. Our findings reveal transient induction of lamb1a in epithelial cells as a key, growth factor-guided step in formation of a signaling-competent regeneration epidermis. Unlike mammals, adult teleost fish and urodele amphibians can fully regenerate lost appendages. Understanding what initiates regeneration in these vertebrates is of great interest to the scientific community. It has long been known that the epidermis that forms quickly over an amputated limb stump is critical for initiating regenerative programs. Yet, little of understood of the molecular and cellular mechanisms by which a simple adult epithelium transforms into this key signaling source. Here, we performed a large-scale, unbiased genetic screen for epithelial signaling deficiencies during the regeneration of amputated adult zebrafish fins, from which we identified several new mutants. One gene identified from this screen disrupts a specific component of the extracellular matrix material Laminin, Laminin beta 1a, a factor that we find to be dispensable in uninjured adult animals but required for all stages fin regeneration. Transient induction of this component by amputation polarizes the basal layer of the nascent epithelium, and, in turn, facilitates the synthesis of signaling factors, the positioning of ligand receptors, and the patterning of new bone cells. We also find that normal induction of Laminin beta 1a by injury relies on the function of Fibroblast growth factors, secreted polypeptide signals that are released early upon injury. Our results identify key early steps in the endogenous program for vertebrate appendage regeneration.
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Affiliation(s)
- Chen-Hui Chen
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Alexander F. Merriman
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Jeremiah Savage
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University School of Medicine, Durham, North Carolina, United States of America
- Center for Human Disease Modeling, Department of Cell Biology, Duke University, Durham, North Carolina, United States of America
| | - Jason Willer
- Center for Human Disease Modeling, Department of Cell Biology, Duke University, Durham, North Carolina, United States of America
| | - Taylor Wahlig
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Nicholas Katsanis
- Center for Human Disease Modeling, Department of Cell Biology, Duke University, Durham, North Carolina, United States of America
| | - Viravuth P. Yin
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University School of Medicine, Durham, North Carolina, United States of America
- Davis Center for Regenerative Biology and Medicine, Mount Desert Island Biological Laboratory, Salisbury Cove, Maine, United States of America
| | - Kenneth D. Poss
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University School of Medicine, Durham, North Carolina, United States of America
- * E-mail:
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Goessling W, North TE. Repairing quite swimmingly: advances in regenerative medicine using zebrafish. Dis Model Mech 2015; 7:769-76. [PMID: 24973747 PMCID: PMC4073267 DOI: 10.1242/dmm.016352] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Regenerative medicine has the promise to alleviate morbidity and mortality caused by organ dysfunction, longstanding injury and trauma. Although regenerative approaches for a few diseases have been highly successful, some organs either do not regenerate well or have no current treatment approach to harness their intrinsic regenerative potential. In this Review, we describe the modeling of human disease and tissue repair in zebrafish, through the discovery of disease-causing genes using classical forward-genetic screens and by modulating clinically relevant phenotypes through chemical genetic screening approaches. Furthermore, we present an overview of those organ systems that regenerate well in zebrafish in contrast to mammalian tissue, as well as those organs in which the regenerative potential is conserved from fish to mammals, enabling drug discovery in preclinical disease-relevant models. We provide two examples from our own work in which the clinical translation of zebrafish findings is either imminent or has already proven successful. The promising results in multiple organs suggest that further insight into regenerative mechanisms and novel clinically relevant therapeutic approaches will emerge from zebrafish research in the future.
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Affiliation(s)
- Wolfram Goessling
- Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, MA 02215, USA. Harvard Medical School, Boston, MA 02115, USA. Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
| | - Trista E North
- Harvard Medical School, Boston, MA 02115, USA. Harvard Stem Cell Institute, Cambridge, MA 02138, USA. Beth Israel Deaconess Medical Center, MA 02115, USA.
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Liu L, Xu Y, Xu L, Wang J, Wu W, Xu L, Yan Y. Analysis of differentially expressed proteins in zebrafish (Danio rerio) embryos exposed to chlorpyrifos. Comp Biochem Physiol C Toxicol Pharmacol 2015; 167:183-9. [PMID: 25445019 DOI: 10.1016/j.cbpc.2014.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/22/2014] [Accepted: 10/22/2014] [Indexed: 11/20/2022]
Abstract
In this study, the protein expression profiles of zebrafish embryos under chlorpyrifos (CPF) stress were investigated. Zebrafish embryos were exposed to 0.25 mg/L CPF, and embryo samples were collected until 24 h post-fertilization (hpf). To gain a better understanding of the response of zebrafish embryos to CPF exposure, two-dimensional polyacrylamide gel electrophoresis (2D PAGE) coupled with mass spectrometry was employed to carry out a comparative proteomic analysis. Total proteins were extracted from the control and treated samples, separated by 2D PAGE, and visualized by silver staining. A total of 59 protein spots showed reproducible changes compared with the control. Of these 59 spots, 19 were selected and subjected to matrix-assisted laser desorption/ionization (MALDI) tandem time-of-flight mass spectrometry (TOF/TOF) analysis; 9 differentially expressed proteins were successfully identified, including 3 up-regulated proteins and 6 down-regulated proteins. The increased expression of 3 proteins associated with detoxification and stress response suggested that the activation of protective proteins was required in zebrafish embryos exposed to CPF. On the other hand, the decreased expression of 6 proteins is mainly involved in cytoskeleton structure, protein translation, signal transduction and lipoprotein metabolism. These data may help us understand the functions and the molecular mechanisms of these proteins in zebrafish embryos' response to CPF exposure.
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Affiliation(s)
- Lili Liu
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Patil S, Paul S. A comprehensive review on the role of various materials in the osteogenic differentiation of mesenchymal stem cells with a special focus on the association of heat shock proteins and nanoparticles. Cells Tissues Organs 2014; 199:81-102. [PMID: 25401759 DOI: 10.1159/000362226] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2014] [Indexed: 11/19/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have important roles in the area of regenerative medicine and clinical applications due to their pluripotent nature. Osteogenic differentiation of MSCs has been studied extensively using various stimulants to develop models of bone repair. There are several factors that enhance the differentiation of MSCs into bone tissues. This review focuses on the effects of various inducers on the osteoblast differentiation of MSCs at different stages of cellular development. We discuss the various growth factors, hormones, vitamins, cytokines, chemical stimulants, and mechanical forces applied in bioreactors that play an essential role in the proliferation, differentiation, and matrix mineralization of stem cells during osteogenesis. Various nanoparticles have also been used recently for the same purpose and the results are promising. Moreover, we review the role of various stresses, including thermal stress, and the subsequent involvement of heat shock proteins as inducers of the proliferation and differentiation of osteoblasts. We also report how various proteasome inhibitors have been shown to induce proliferation and osteogenic differentiation of MSCs in a number of cases. In this communication, the role of peptide-based scaffolds in osteoblast proliferation and differentiation is also reviewed. Based on the reviewed information, this article proposes novel possibilities for the enhancement of proliferation, differentiation, and migration of osteoblasts from MSCs. © 2014 S. Karger AG, Basel.
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Affiliation(s)
- Supriya Patil
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, India
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31
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Xu D, Sun L, Liu S, Zhang L, Ru X, Zhao Y, Yang H. Molecular cloning of heat shock protein 10 (Hsp10) and 60 (Hsp60) cDNAs and their expression analysis under thermal stress in the sea cucumber Apostichopus japonicus. Comp Biochem Physiol B Biochem Mol Biol 2014; 171:49-57. [DOI: 10.1016/j.cbpb.2014.03.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 02/25/2014] [Accepted: 03/28/2014] [Indexed: 12/16/2022]
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32
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Lenkowski JR, Raymond PA. Müller glia: Stem cells for generation and regeneration of retinal neurons in teleost fish. Prog Retin Eye Res 2014; 40:94-123. [PMID: 24412518 DOI: 10.1016/j.preteyeres.2013.12.007] [Citation(s) in RCA: 223] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 12/28/2013] [Accepted: 12/30/2013] [Indexed: 12/31/2022]
Abstract
Adult zebrafish generate new neurons in the brain and retina throughout life. Growth-related neurogenesis allows a vigorous regenerative response to damage, and fish can regenerate retinal neurons, including photoreceptors, and restore functional vision following photic, chemical, or mechanical destruction of the retina. Müller glial cells in fish function as radial-glial-like neural stem cells. During adult growth, Müller glial nuclei undergo sporadic, asymmetric, self-renewing mitotic divisions in the inner nuclear layer to generate a rod progenitor that migrates along the radial fiber of the Müller glia into the outer nuclear layer, proliferates, and differentiates exclusively into rod photoreceptors. When retinal neurons are destroyed, Müller glia in the immediate vicinity of the damage partially and transiently dedifferentiate, re-express retinal progenitor and stem cell markers, re-enter the cell cycle, undergo interkinetic nuclear migration (characteristic of neuroepithelial cells), and divide once in an asymmetric, self-renewing division to generate a retinal progenitor. This daughter cell proliferates rapidly to form a compact neurogenic cluster surrounding the Müller glia; these multipotent retinal progenitors then migrate along the radial fiber to the appropriate lamina to replace missing retinal neurons. Some aspects of the injury-response in fish Müller glia resemble gliosis as observed in mammals, and mammalian Müller glia exhibit some neurogenic properties, indicative of a latent ability to regenerate retinal neurons. Understanding the specific properties of fish Müller glia that facilitate their robust capacity to generate retinal neurons will inform and inspire new clinical approaches for treating blindness and visual loss with regenerative medicine.
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Affiliation(s)
- Jenny R Lenkowski
- Department of Molecular, Cellular, and Developmental Biology, College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, MI, USA.
| | - Pamela A Raymond
- Department of Molecular, Cellular, and Developmental Biology, College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, MI, USA.
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Wilkinson RN, Jopling C, van Eeden FJM. Zebrafish as a model of cardiac disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2014; 124:65-91. [PMID: 24751427 DOI: 10.1016/b978-0-12-386930-2.00004-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The zebrafish has been rapidly adopted as a model for cardiac development and disease. The transparency of the embryo, its limited requirement for active oxygen delivery, and ease of use in genetic manipulations and chemical exposure have made it a powerful alternative to rodents. Novel technologies like TALEN/CRISPR-mediated genome engineering and advanced imaging methods will only accelerate its use. Here, we give an overview of heart development and function in the fish and highlight a number of areas where it is most actively contributing to the understanding of cardiac development and disease. We also review the current state of research on a feature that we only could wish to be conserved between fish and human; cardiac regeneration.
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Affiliation(s)
- Robert N Wilkinson
- Department of Cardiovascular Science, Medical School, University of Sheffield, Sheffield, United Kingdom
| | - Chris Jopling
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Département de Physiologie, Labex Ion Channel Science and Therapeutics, Montpellier, France; INSERM, U661, Montpellier, France; Universités de Montpellier 1&2, UMR-5203, Montpellier, France
| | - Fredericus J M van Eeden
- MRC Centre for Biomedical Genetics, Department of Biomedical Science, University of Sheffield, Sheffield, United Kingdom
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34
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Gemberling M, Bailey TJ, Hyde DR, Poss KD. The zebrafish as a model for complex tissue regeneration. Trends Genet 2013; 29:611-20. [PMID: 23927865 DOI: 10.1016/j.tig.2013.07.003] [Citation(s) in RCA: 366] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 06/21/2013] [Accepted: 07/08/2013] [Indexed: 12/22/2022]
Abstract
For centuries, philosophers and scientists have been fascinated by the principles and implications of regeneration in lower vertebrate species. Two features have made zebrafish an informative model system for determining mechanisms of regenerative events. First, they are highly regenerative, able to regrow amputated fins, as well as a lesioned brain, retina, spinal cord, heart, and other tissues. Second, they are amenable to both forward and reverse genetic approaches, with a research toolset regularly updated by an expanding community of zebrafish researchers. Zebrafish studies have helped identify new mechanistic underpinnings of regeneration in multiple tissues and, in some cases, have served as a guide for contemplating regenerative strategies in mammals. Here, we review the recent history of zebrafish as a genetic model system for understanding how and why tissue regeneration occurs.
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Affiliation(s)
- Matthew Gemberling
- Department of Cell Biology and Howard Hughes Medical Institute, Duke University Medical Center, Durham, NC 27710, USA
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35
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Jang JH, Jung JS, Choi JI, Kang SK. Nuclear Ago2/HSP60 contributes to broad spectrum of hATSCs function via Oct4 regulation. Antioxid Redox Signal 2012; 16:383-99. [PMID: 21995449 PMCID: PMC3261027 DOI: 10.1089/ars.2011.4134] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIMS Argonaute2 (Ago2) plays a fundamental role in microRNA-mediated gene regulation through its intrinsic endonuclease activity. In this study we demonstrate the novel functions and molecular mechanisms by which nuclear Ago2 directly regulates HSP (heat shock protein) 60 expression and stem cell self-renewal. HSP60 is a crucial regulator of ROS (reactive oxygen species), senescence, and apoptotic cell death in several tissues and cell types. RESULTS HSP60 is regulated via inactivation of p38/JNK and p53 and binds directly to the regulatory regions of the TERT, c-myc, GPx3, p53, and STAT3 genes. Using HSP60 CHIP-PCR experiments, we show that HSP60 binds directly to the Oct4 and Nanog genes and directly regulates Oct4 and other stemness genes involved in human adipose tissue-derived stem cell (hATSC) differentiation. HSP60 also positively regulates ROS-scavenging factors, including GPx3 and TXNL1, which directly modulate cytosolic ROS in hATSCs. Moreover, our study shows that Oct4 regulates HSP60 expression and controls hATSC survival and self-renewal after binding to the HSP60 gene. Furthermore, HSP60-mediated regulation of Oct4 contributes to neuronal and endodermal β-cell differentiation of hATSCs in vitro and in vivo and downregulates mesoderm-specific gene expression. INNOVATION AND CONCLUSION We show that increased levels of Ago2 or HSP60 effectively induce nuclear localization of HSP60, which directly controls Oct4, c-Myc, p53, TERT, and STAT3 for transdifferentiation programs. Collectively, we suggest a novel model in which nuclear Ago2 controls HSP60 in hATSCs.
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Affiliation(s)
- Jin Hwa Jang
- Laboratory of Stem Cell Biology, Department of Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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36
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Shibata S, Umei M, Kawahara H, Yano M, Makino S, Okano H. Characterization of the RNA-binding protein Musashi1 in zebrafish. Brain Res 2012; 1462:162-73. [PMID: 22429745 DOI: 10.1016/j.brainres.2012.01.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Revised: 12/21/2011] [Accepted: 01/27/2012] [Indexed: 12/21/2022]
Abstract
Musashi (Msi) is an evolutionarily conserved gene family of RNA-binding proteins (RBPs) that is preferentially expressed in the nervous system. The first member of the Msi family was identified in Drosophila. Drosophila Msi plays an important role in regulating asymmetric cell division of the sensory organ precursor cells. The mammalian orthologs, including human and mouse Musashi1 (Msi1), are neural RBPs that are strongly expressed in fetal and adult neural stem/progenitor cells (NS/PCs). Mammalian Msi1 contributes to self renewal of NS/PCs through translational regulation of several target mRNAs. In this study, the zebrafish Msi ortholog zMsi1 was identified and characterized. The normal spatial and temporal expression profiles for both protein and mRNA were determined. A series of splice variants were detected. Overall, zMsi1 was strongly expressed in neural tissue in early stages of development and exhibited similarity to mammalian Msi1 expression patterns. To reveal the in vivo function of zMsi1, morpholinos against Msi1 were introduced into one-cell stage zebrafish embryos. Knock down of zmsi1 frequently resulted in aberrant formation of the Central Nervous System (CNS). These results suggest that Msi1 plays roles in CNS development in vertebrates. This article is part of a Special Issue entitled "RNA-Binding Proteins".
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Affiliation(s)
- Shinsuke Shibata
- Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo 160-8582, Japan
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Yoshinari N, Kawakami A. Mature and juvenile tissue models of regeneration in small fish species. THE BIOLOGICAL BULLETIN 2011; 221:62-78. [PMID: 21876111 DOI: 10.1086/bblv221n1p62] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The multitude of cells constituting organisms are fragile and easily damaged day by day. Therefore, maintenance of tissue morphology and function is fundamental for multicellular organisms to attain long life. For proper maintenance of tissue integrity, organisms must have mechanisms that detect the loss of tissue mass, activate the de novo production of cells, and organize those cells into functional tissues. However, these processes are only poorly understood. Here we give an overview of adult and juvenile tissue regeneration models in small fish species, such as zebrafish and medaka, and highlight recent advances at the molecular level. From these advances, we have come to realize that the epidermal and mesenchymal parts of the regenerating fish fin-that is, the wound epidermis and blastema, respectively-comprise heterogeneous populations of cells with different molecular identities that can be termed "compartments." These compartments and their mutual interactions are thought to play important roles in promoting the proper progression of tissue regeneration. We further describe the current understanding of these compartments and discuss the possible approaches to affording a better understanding of their roles and interactions during regeneration.
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Affiliation(s)
- Nozomi Yoshinari
- Department of Biological Information, Tokyo Institute of Technology, Midori-ku, Yokohama, Japan
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38
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Shao J, Chen D, Ye Q, Cui J, Li Y, Li L. Tissue regeneration after injury in adult zebrafish: the regenerative potential of the caudal fin. Dev Dyn 2011; 240:1271-7. [PMID: 21412938 DOI: 10.1002/dvdy.22603] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2011] [Indexed: 11/07/2022] Open
Abstract
The zebrafish has the potential to regenerate many of its tissues. In this study, we examined caudal fin regeneration in zebrafish that received repeated injuries (fin amputation) at different ages. In zebrafish that received repeated injuries, the potential for caudal fin regeneration, such as tissue growth and the expression of regeneration marker genes (msxb, fgf20a, bmp2b), did not decline in comparison to zebrafish that received only one amputation surgery. The process of initial fin regeneration (e.g., tissue outgrowth and the expression of regeneration marker genes at 7 days post-amputation) did not seem to correlate with age. However, slight differences in fin outgrowth were observed between young and old animals when examined in the late regeneration stages (e.g., 20 and 30 days post-amputation). Together, the data suggest that zebrafish has unlimited regenerative potential in the injured caudal fin.
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Affiliation(s)
- Jinping Shao
- Key Laboratory of Animal Models and Degenerative Neurological Diseases, Department of Physiology, Nankai University School of Medicine, Tianjin, China
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39
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Olsen AS, Sarras MP, Intine RV. Limb regeneration is impaired in an adult zebrafish model of diabetes mellitus. Wound Repair Regen 2011; 18:532-42. [PMID: 20840523 DOI: 10.1111/j.1524-475x.2010.00613.x] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The zebrafish (Danio rerio) is an established model organism for the study of developmental processes, human disease, and tissue regeneration. We report that limb regeneration is severely impaired in our newly developed adult zebrafish model of type I diabetes mellitus. Intraperitoneal streptozocin injection of adult, wild-type zebrafish results in a sustained hyperglycemic state as determined by elevated fasting blood glucose values and increased glycation of serum protein. Serum insulin levels are also decreased and pancreas immunohistochemisty revealed a decreased amount of insulin signal in hyperglycemic fish. Additionally, the diabetic complications of retinal thinning and glomerular basement membrane thickening (early signs of retinopathy and nephropathy) resulting from the hyperglycemic state were evident in streptozocin-injected fish at 3 weeks. Most significantly, limb regeneration, following caudal fin amputation, is severely impaired in diabetic zebrafish and nonspecific toxic effects outside the pancreas were not found to contribute to impaired limb regeneration. This experimental system using adult zebrafish facilitates a broad spectrum of genetic and molecular approaches to study regeneration in the diabetic background.
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Affiliation(s)
- Ansgar S Olsen
- Department of Cell Biology and Anatomy, Dr William M Scholl College of Podiatric Medicine, Rosalind Franklin University, North Chicago, Illinois, USA
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40
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Perkins BD, Fadool JM. Photoreceptor structure and development analyses using GFP transgenes. Methods Cell Biol 2011; 100:205-18. [PMID: 21111218 DOI: 10.1016/b978-0-12-384892-5.00007-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In recent years, studies of zebrafish rod and cone photoreceptors have yielded novel insights into the differentiation of distinct photoreceptor cell types and the mechanisms guiding photoreceptor regeneration following cell death, and they have provided models of human retinal degeneration. These studies were facilitated by the use of transgenic zebrafish expressing fluorescent reporter genes under the control of various cell-specific promoters. Improvements in transgenesis techniques (e.g., Tol2 transposition), the availability of numerous fluorescent reporter genes with different localization properties, and the ability to generate transgenes via recombineering (e.g., Gateway technology) have enabled researchers to quickly develop transgenic lines that improve our understanding of the causes of human blindness and ways to mitigate its effects.
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Affiliation(s)
- Brian D Perkins
- Department of Biology, Texas A&M University, College Station, Texas, USA
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41
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Blackiston D, Adams DS, Lemire JM, Lobikin M, Levin M. Transmembrane potential of GlyCl-expressing instructor cells induces a neoplastic-like conversion of melanocytes via a serotonergic pathway. Dis Model Mech 2011; 4:67-85. [PMID: 20959630 PMCID: PMC3008964 DOI: 10.1242/dmm.005561] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 08/23/2010] [Indexed: 12/14/2022] Open
Abstract
Understanding the mechanisms that coordinate stem cell behavior within the host is a high priority for developmental biology, regenerative medicine and oncology. Endogenous ion currents and voltage gradients function alongside biochemical cues during pattern formation and tumor suppression, but it is not known whether bioelectrical signals are involved in the control of stem cell progeny in vivo. We studied Xenopus laevis neural crest, an embryonic stem cell population that gives rise to many cell types, including melanocytes, and contributes to the morphogenesis of the face, heart and other complex structures. To investigate how depolarization of transmembrane potential of cells in the neural crest's environment influences its function in vivo, we manipulated the activity of the native glycine receptor chloride channel (GlyCl). Molecular-genetic depolarization of a sparse, widely distributed set of GlyCl-expressing cells non-cell-autonomously induces a neoplastic-like phenotype in melanocytes: they overproliferate, acquire an arborized cell shape and migrate inappropriately, colonizing numerous tissues in a metalloprotease-dependent fashion. A similar effect was observed in human melanocytes in culture. Depolarization of GlyCl-expressing cells induces these drastic changes in melanocyte behavior via a serotonin-transporter-dependent increase of extracellular serotonin (5-HT). These data reveal GlyCl as a molecular marker of a sparse and heretofore unknown cell population with the ability to specifically instruct neural crest derivatives, suggest transmembrane potential as a tractable signaling modality by which somatic cells can control stem cell behavior at considerable distance, identify a new biophysical aspect of the environment that confers a neoplastic-like phenotype upon stem cell progeny, reveal a pre-neural role for serotonin and its transporter, and suggest a novel strategy for manipulating stem cell behavior.
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Affiliation(s)
- Douglas Blackiston
- Center for Regenerative and Developmental Biology, and Biology Department, 200 Boston Avenue, Suite 4600, Tufts University, Medford, MA 02155, USA
- Department of Regenerative and Developmental Biology, Forsyth Institute, Boston, MA 02115, USA
| | - Dany S. Adams
- Center for Regenerative and Developmental Biology, and Biology Department, 200 Boston Avenue, Suite 4600, Tufts University, Medford, MA 02155, USA
| | - Joan M. Lemire
- Center for Regenerative and Developmental Biology, and Biology Department, 200 Boston Avenue, Suite 4600, Tufts University, Medford, MA 02155, USA
| | - Maria Lobikin
- Center for Regenerative and Developmental Biology, and Biology Department, 200 Boston Avenue, Suite 4600, Tufts University, Medford, MA 02155, USA
| | - Michael Levin
- Center for Regenerative and Developmental Biology, and Biology Department, 200 Boston Avenue, Suite 4600, Tufts University, Medford, MA 02155, USA
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42
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Abstract
Lens regeneration among vertebrates is basically restricted to some amphibians. The most notable cases are the ones that occur in premetamorphic frogs and in adult newts. Frogs and newts regenerate their lens in very different ways. In frogs the lens is regenerated by transdifferentiation of the cornea and is limited only to a time before metamorphosis. On the other hand, regeneration in newts is mediated by transdifferentiation of the pigment epithelial cells of the dorsal iris and is possible in adult animals as well. Thus, the study of both systems could provide important information about the process. Molecular tools have been developed in frogs and recently also in newts. Thus, the process has been studied at the molecular and cellular levels. A synthesis describing both systems was long due. In this review we describe the process in both Xenopus and the newt. The known molecular mechanisms are described and compared.
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Affiliation(s)
- Jonathan J Henry
- Department of Cell and Developmental Biology, University of Illinois, Urbana, IL 61801, USA.
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43
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Oppedal D, Goldsmith MI. A chemical screen to identify novel inhibitors of fin regeneration in zebrafish. Zebrafish 2010; 7:53-60. [PMID: 20384483 DOI: 10.1089/zeb.2009.0633] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We performed a chemical screen to look for novel inhibitors of zebrafish caudal fin regeneration. In a pilot screen, 520 compounds were tested. Two compounds, budesonide and AGN192403, abrogated fin regeneration. One compound in particular, AGN192403, targets the imidazoline receptor, a pathway not previously linked to fin regeneration. In addition to inhibiting regeneration of the adult fin, AGN192403 also blocked regeneration of the larval fin fold. Finally, the inhibitory effect of AGN192403 on fin regeneration persisted after removal of the drug. These studies demonstrate that chemical screening is feasible in adult zebrafish and that it is a reasonable strategy to use for exploring the biology of regeneration.
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Affiliation(s)
- Douglas Oppedal
- Department of Pediatrics, Washington University, St. Louis, Missouri 63110, USA
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44
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Rakers S, Gebert M, Uppalapati S, Meyer W, Maderson P, Sell AF, Kruse C, Paus R. ‘Fish matters’: the relevance of fish skin biology to investigative dermatology. Exp Dermatol 2010; 19:313-24. [DOI: 10.1111/j.1600-0625.2009.01059.x] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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45
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Shao J, Qian X, Zhang C, Xu Z. Fin regeneration from tail segment with musculature, endoskeleton, and scales. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2009; 312:762-9. [PMID: 19402133 DOI: 10.1002/jez.b.21295] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
It is well known that fish caudal fins can be completely regenerated after fin amputation. Although much research on fin regeneration has been carried out, there have been very few reports regarding fin regeneration after tail amputation. In this study, we used grass carp, common carp, koi carp, and zebrafish as experimental organisms. Some caudal fins could be distinctly regenerated in 2 weeks after tail amputation. After all-trans-retinoic acid treatment and tail amputation, zebrafish were unable to regenerate caudal fins that could be seen with the naked eye. However, after tail amputation, more than half of the zebrafish tested were able to regenerate caudal fins. Caudal fin regeneration depended on the presence of musculature and endoskeleton at the site of amputation. These caudal fins arose from segments of the endoskeleton, which contrast with currently accepted knowledge.
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Affiliation(s)
- Jinhui Shao
- Department of Anatomy, Histology and Embryology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, P. R. China
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46
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Tal TL, Franzosa JA, Tanguay RL. Molecular signaling networks that choreograph epimorphic fin regeneration in zebrafish - a mini-review. Gerontology 2009; 56:231-40. [PMID: 19923791 DOI: 10.1159/000259327] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 07/28/2009] [Indexed: 12/11/2022] Open
Abstract
This short review provides a current synopsis of caudal fin regeneration in zebrafish with an emphasis on the molecular signaling networks that dictate epimorphic regeneration. At the outset, the fundamentals of caudal fin architecture and the stages of epimorphic regeneration are described. This is followed by a detailed look at the main networks implicated in fin regeneration, namely the Wnt, fibroblast growth factor, activin-betaA, retinoic acid and hedgehog signaling pathways. Throughout this mini-review, these molecular networks are examined through the lens of wound healing, blastema formation or regenerative outgrowth, three of the main stages of epimorphic regeneration. Next, the emerging role of noncoding RNAs as regulators of regeneration and mechanisms of regenerative termination are discussed. Finally, the implications for future research and the broader field of regenerative medicine are examined.
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Affiliation(s)
- Tamara L Tal
- Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, Oregon State University, Corvallis, 97331-7301, USA
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47
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Malloch EL, Perry KJ, Fukui L, Johnson VR, Wever J, Beck CW, King MW, Henry JJ. Gene expression profiles of lens regeneration and development in Xenopus laevis. Dev Dyn 2009; 238:2340-56. [PMID: 19681139 PMCID: PMC2773617 DOI: 10.1002/dvdy.21998] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Seven hundred and thirty-four unique genes were recovered from a cDNA library enriched for genes up-regulated during the process of lens regeneration in the frog Xenopus laevis. The sequences represent transcription factors, proteins involved in RNA synthesis/processing, components of prominent cell signaling pathways, genes involved in protein processing, transport, and degradation (e.g., the ubiquitin/proteasome pathway), matrix metalloproteases (MMPs), as well as many other proteins. The findings implicate specific signal transduction pathways in the process of lens regeneration, including the FGF, TGF-beta, MAPK, Retinoic acid, Wnt, and hedgehog signaling pathways, which are known to play important roles in eye/lens development and regeneration in various systems. In situ hybridization revealed that the majority of genes recovered are expressed during embryogenesis, including in eye tissues. Several novel genes specifically expressed in lenses were identified. The suite of genes was compared to those up-regulated in other regenerating tissues/organisms, and a small degree of overlap was detected.
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Affiliation(s)
- Erica L. Malloch
- University of Illinois, Department of Cell & Developmental Biology, 601 S. Goodwin Ave. Urbana, IL 61801
| | - Kimberly J. Perry
- University of Illinois, Department of Cell & Developmental Biology, 601 S. Goodwin Ave. Urbana, IL 61801
| | - Lisa Fukui
- University of Illinois, Department of Cell & Developmental Biology, 601 S. Goodwin Ave. Urbana, IL 61801
| | - Verity R. Johnson
- University of Illinois, Department of Cell & Developmental Biology, 601 S. Goodwin Ave. Urbana, IL 61801
| | - Jason Wever
- University of Illinois, Department of Cell & Developmental Biology, 601 S. Goodwin Ave. Urbana, IL 61801
| | - Caroline W. Beck
- University of Otago, Department of Zoology, 340 Great King Street, Dunedin, New Zealand
| | - Michael W. King
- Indiana University School of Medicine and Center for Regenerative Biology and Medicine, Terre Haute, IN 47809
| | - Jonathan J. Henry
- University of Illinois, Department of Cell & Developmental Biology, 601 S. Goodwin Ave. Urbana, IL 61801
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48
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Genetic evidence for shared mechanisms of epimorphic regeneration in zebrafish. Proc Natl Acad Sci U S A 2009; 106:9310-5. [PMID: 19474300 DOI: 10.1073/pnas.0811186106] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
In a microarray-based gene profiling analysis of Müller glia-derived retinal stem cells in light-damaged retinas from adult zebrafish, we found that 2 genes required for regeneration of fin and heart tissues in zebrafish, hspd1 (heat shock 60-kDa protein 1) and mps1 (monopolar spindle 1), were up-regulated. Expression of both genes in the neurogenic Müller glia and progenitors was independently verified by quantitative reverse transcriptase PCR and in situ hybridization. Functional analysis of temperature-sensitive mutants of hspd1 and mps1 revealed that both are necessary for Müller glia-based cone photoreceptor regeneration in adult zebrafish retina. In the amputated fin, hspd1 is required for the induction of mesenchymal stem cells and blastema formation, whereas mps1 is required at a later step for rapid cell proliferation and outgrowth. This temporal sequence of hspd1 and mps1 function is conserved in the regenerating retina. Comparison of gene expression profiles from regenerating zebrafish retina, caudal fin, and heart muscle revealed additional candidate genes potentially implicated in injury-induced epimorphic regeneration in diverse zebrafish tissues.
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49
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Abstract
A number of genes have been implicated in regeneration, but the regulation of these genes, particularly pertaining to regeneration in higher vertebrates, remains an interesting and mostly open question. We have studied microRNA (miRNA) regulation of regeneration and found that an intact miRNA pathway is essential for caudal fin regeneration in zebrafish. We also showed that miR-203 directly targets the Wnt signaling transcription factor Lef1 during this process. Repression of Lef1 by miR-203 blocks regeneration, whereas loss of miR-203 results in excess Lef1 levels and fin overgrowth. Expression of Lef1 from mRNAs lacking 3' UTR recognition elements can rescue the effects of excess miR-203, demonstrating that these effects are due to specific regulation of lef1 by miR-203. Our data support a model in which regulation of Lef1 protein levels by miR-203 is a key limiting step during regeneration.
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50
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Martinez VG, Manson JM, Zoran MJ. Effects of nerve injury and segmental regeneration on the cellular correlates of neural morphallaxis. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART B, MOLECULAR AND DEVELOPMENTAL EVOLUTION 2008; 310:520-33. [PMID: 18561185 PMCID: PMC2754161 DOI: 10.1002/jez.b.21224] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Functional recovery of neural networks after injury requires a series of signaling events similar to the embryonic processes that governed initial network construction. Neural morphallaxis, a form of nervous system regeneration, involves reorganization of adult neural connectivity patterns. Neural morphallaxis in the worm, Lumbriculus variegatus, occurs during asexual reproduction and segmental regeneration, as body fragments acquire new positional identities along the anterior-posterior axis. Ectopic head (EH) formation, induced by ventral nerve cord lesion, generated morphallactic plasticity including the reorganization of interneuronal sensory fields and the induction of a molecular marker of neural morphallaxis. Morphallactic changes occurred only in segments posterior to an EH. Neither EH formation, nor neural morphallaxis was observed after dorsal body lesions, indicating a role for nerve cord injury in morphallaxis induction. Furthermore, a hierarchical system of neurobehavioral control was observed, where anterior heads were dominant and an EH controlled body movements only in the absence of the anterior head. Both suppression of segmental regeneration and blockade of asexual fission, after treatment with boric acid, disrupted the maintenance of neural morphallaxis, but did not block its induction. Therefore, segmental regeneration (i.e., epimorphosis) may not be required for the induction of morphallactic remodeling of neural networks. However, on-going epimorphosis appears necessary for the long-term consolidation of cellular and molecular mechanisms underlying the morphallaxis of neural circuitry.
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Affiliation(s)
| | | | - Mark J. Zoran
- Department of Biology, Texas A&M University, College Station, Texas
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