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Markitantova YV, Simirskii VN. The Role of the Purinergic Signaling System in the Control of Histogenesis, Homeostasis, and Pathogenesis of the Vertebrate Retina. Russ J Dev Biol 2021. [DOI: 10.1134/s1062360421060084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Harsing LG, Szénási G, Zelles T, Köles L. Purinergic-Glycinergic Interaction in Neurodegenerative and Neuroinflammatory Disorders of the Retina. Int J Mol Sci 2021; 22:ijms22126209. [PMID: 34201404 PMCID: PMC8228622 DOI: 10.3390/ijms22126209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 12/26/2022] Open
Abstract
Neurodegenerative–neuroinflammatory disorders of the retina seriously hamper human vision. In searching for key factors that contribute to the development of these pathologies, we considered potential interactions among purinergic neuromodulation, glycinergic neurotransmission, and microglia activity in the retina. Energy deprivation at cellular levels is mainly due to impaired blood circulation leading to increased release of ATP and adenosine as well as glutamate and glycine. Interactions between these modulators and neurotransmitters are manifold. First, P2Y purinoceptor agonists facilitate reuptake of glycine by glycine transporter 1, while its inhibitors reduce reverse-mode operation; these events may lower extracellular glycine levels. The consequential changes in extracellular glycine concentration can lead to parallel changes in the activity of NR1/NR2B type NMDA receptors of which glycine is a mandatory agonist, and thereby may reduce neurodegenerative events in the retina. Second, P2Y purinoceptor agonists and glycine transporter 1 inhibitors may indirectly inhibit microglia activity by decreasing neuronal or glial glycine release in energy-compromised retina. These inhibitions may have a role in microglia activation, which is present during development and progression of neurodegenerative disorders such as glaucomatous and diabetic retinopathies and age-related macular degeneration or loss of retinal neurons caused by thromboembolic events. We have hypothesized that glycine transporter 1 inhibitors and P2Y purinoceptor agonists may have therapeutic importance in neurodegenerative–neuroinflammatory disorders of the retina by decreasing NR1/NR2B NMDA receptor activity and production and release of a series of proinflammatory cytokines from microglial cells.
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Affiliation(s)
- Laszlo G. Harsing
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary; (T.Z.); (L.K.)
- Correspondence: ; Tel.: +36-1-210-4416
| | - Gábor Szénási
- Institute of Translational Medicine, Semmelweis University, H-1089 Budapest, Hungary;
| | - Tibor Zelles
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary; (T.Z.); (L.K.)
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary
| | - László Köles
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary; (T.Z.); (L.K.)
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary
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3
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Brandli A, Dudczig S, Currie PD, Jusuf PR. Photoreceptor ablation following ATP induced injury triggers Müller glia driven regeneration in zebrafish. Exp Eye Res 2021; 207:108569. [PMID: 33839111 DOI: 10.1016/j.exer.2021.108569] [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: 11/19/2020] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 11/29/2022]
Abstract
Retinal regeneration research offers hope to people affected by visual impairment due to disease and injury. Ongoing research has explored many avenues towards retinal regeneration, including those that utilizes implantation of devices, cells or targeted viral-mediated gene therapy. These results have so far been limited, as gene therapy only has applications for rare single-gene mutations and implantations are invasive and in the case of cell transplantation donor cells often fail to integrate with adult neurons. An alternative mode of retinal regeneration utilizes a stem cell population unique to vertebrate retina - Müller glia (MG). Endogenous MG can readily regenerate lost neurons spontaneously in zebrafish and to a very limited extent in mammalian retina. The use of adenosine triphosphate (ATP) has been shown to induce retinal degeneration and activation of the MG in mammals, but whether this is conserved to other vertebrate species including those with higher regenerative capacity remains unknown. In our study, we injected a single dose of ATP intravitreal in zebrafish to characterize the cell death and MG induced regeneration. We used TUNEL labelling on retinal sections to show that ATP caused localised death of photoreceptors and ganglion cells within 24 h. Histology of GFP-transgenic zebrafish and BrdU injected fish demonstrated that MG proliferation peaked at days 3 and 4 post-ATP injection. Using BrdU labelling and photoreceptor markers (Zpr1) we observed regeneration of lost rod photoreceptors at day 14. This study has been undertaken to allow for comparative studies between mammals and zebrafish that use the same specific induction method of injury, i.e. ATP induced injury to allow for direct comparison of across species to narrow down resulting differences that might reflect the differing regenerative capacity. The ultimate aim of this work is to recapitulate pro-neurogenesis Müller glia signaling in mammals to produce new neurons that integrate with the existing retinal circuit to restore vision.
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Affiliation(s)
- Alice Brandli
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia; Deptartment of Anatomy and Neuroscience, University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Stefanie Dudczig
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia; School of BioSciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Peter D Currie
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Patricia R Jusuf
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia; School of BioSciences, University of Melbourne, Parkville, VIC, 3010, Australia.
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4
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Borges PA, Waclawiak I, Georgii JL, Fraga-Junior VDS, Barros JF, Lemos FS, Russo-Abrahão T, Saraiva EM, Takiya CM, Coutinho-Silva R, Penido C, Mermelstein C, Meyer-Fernandes JR, Canto FB, Neves JS, Melo PA, Canetti C, Benjamim CF. Adenosine Diphosphate Improves Wound Healing in Diabetic Mice Through P2Y 12 Receptor Activation. Front Immunol 2021; 12:651740. [PMID: 33828561 PMCID: PMC8019717 DOI: 10.3389/fimmu.2021.651740] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/01/2021] [Indexed: 01/13/2023] Open
Abstract
Chronic wounds are a public health problem worldwide, especially those related to diabetes. Besides being an enormous burden to patients, it challenges wound care professionals and causes a great financial cost to health system. Considering the absence of effective treatments for chronic wounds, our aim was to better understand the pathophysiology of tissue repair in diabetes in order to find alternative strategies to accelerate wound healing. Nucleotides have been described as extracellular signaling molecules in different inflammatory processes, including tissue repair. Adenosine-5'-diphosphate (ADP) plays important roles in vascular and cellular response and is immediately released after tissue injury, mainly from platelets. However, despite the well described effect on platelet aggregation during inflammation and injury, little is known about the role of ADP on the multiple steps of tissue repair, particularly in skin wounds. Therefore, we used the full-thickness excisional wound model to evaluate the effect of local ADP application in wounds of diabetic mice. ADP accelerated cutaneous wound healing, improved new tissue formation, and increased both collagen deposition and transforming growth factor-β (TGF-β) production in the wound. These effects were mediated by P2Y12 receptor activation since they were inhibited by Clopidogrel (Clop) treatment, a P2Y12 receptor antagonist. Furthermore, P2Y1 receptor antagonist also blocked ADP-induced wound closure until day 7, suggesting its involvement early in repair process. Interestingly, ADP treatment increased the expression of P2Y12 and P2Y1 receptors in the wound. In parallel, ADP reduced reactive oxygen species (ROS) formation and tumor necrosis factor-α (TNF-α) levels, while increased IL-13 levels in the skin. Also, ADP increased the counts of neutrophils, eosinophils, mast cells, and gamma delta (γδ) T cells (Vγ4+ and Vγ5+ cells subtypes of γδ+ T cells), although reduced regulatory T (Tregs) cells in the lesion. In accordance, ADP increased fibroblast proliferation and migration, myofibroblast differentiation, and keratinocyte proliferation. In conclusion, we provide strong evidence that ADP acts as a pro-resolution mediator in diabetes-associated skin wounds and is a promising intervention target for this worldwide problem.
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Affiliation(s)
- Paula Alvarenga Borges
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- Fluminense Federal Institute (IFF), Rio de Janeiro, Brazil
| | - Ingrid Waclawiak
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Janaína Lima Georgii
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | | | - Janaína Figueiredo Barros
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Felipe Simões Lemos
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Thaís Russo-Abrahão
- Institute of Medical Biochemistry Leopoldo de Meis, Center of Health Sciences, UFRJ, Rio de Janeiro, Brazil
| | - Elvira Maria Saraiva
- Institute of Microbiology Paulo de Góes, Center of Health Sciences, UFRJ, Rio de Janeiro, Brazil
| | - Christina M. Takiya
- Institute of Biophysics Carlos Chagas Filho (IBCCF), Center of Health Sciences, UFRJ, Rio de Janeiro, Brazil
| | - Robson Coutinho-Silva
- Institute of Biophysics Carlos Chagas Filho (IBCCF), Center of Health Sciences, UFRJ, Rio de Janeiro, Brazil
| | - Carmen Penido
- Center for Technological Development in Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- Laboratory of Applied Pharmacology, Institute of Drug Technology, Farmanguinhos, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Claudia Mermelstein
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | | | - Fábio B. Canto
- Department of Immunobiology, Institute of Biology, Fluminense Federal University (UFF), Niterói, Brazil
| | - Josiane Sabbadini Neves
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Paulo A. Melo
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Claudio Canetti
- Institute of Biophysics Carlos Chagas Filho (IBCCF), Center of Health Sciences, UFRJ, Rio de Janeiro, Brazil
| | - Claudia Farias Benjamim
- Institute of Biomedical Sciences, Center of Health Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- Institute of Biophysics Carlos Chagas Filho (IBCCF), Center of Health Sciences, UFRJ, Rio de Janeiro, Brazil
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Neurodegeneration, Neuroprotection and Regeneration in the Zebrafish Retina. Cells 2021; 10:cells10030633. [PMID: 33809186 PMCID: PMC8000332 DOI: 10.3390/cells10030633] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/10/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
Neurodegenerative retinal diseases, such as glaucoma and diabetic retinopathy, involve a gradual loss of neurons in the retina as the disease progresses. Central nervous system neurons are not able to regenerate in mammals, therefore, an often sought after course of treatment for neuronal loss follows a neuroprotective or regenerative strategy. Neuroprotection is the process of preserving the structure and function of the neurons that have survived a harmful insult; while regenerative approaches aim to replace or rewire the neurons and synaptic connections that were lost, or induce regrowth of damaged axons or dendrites. In order to test the neuroprotective effectiveness or the regenerative capacity of a particular agent, a robust experimental model of retinal neuronal damage is essential. Zebrafish are being used more often in this type of study because their eye structure and development is well-conserved between zebrafish and mammals. Zebrafish are robust genetic tools and are relatively inexpensive to maintain. The large array of functional and behavioral tests available in zebrafish makes them an attractive model for neuroprotection studies. Some common insults used to model retinal disease and study neuroprotection in zebrafish include intense light, chemical toxicity and mechanical damage. This review covers the existing retinal neuroprotection and regeneration literature in the zebrafish and highlights their potential for future studies.
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Gao H, A L, Huang X, Chen X, Xu H. Müller Glia-Mediated Retinal Regeneration. Mol Neurobiol 2021; 58:2342-2361. [PMID: 33417229 DOI: 10.1007/s12035-020-02274-w] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 12/22/2020] [Indexed: 12/18/2022]
Abstract
Müller glia originate from neuroepithelium and are the principal glial cells in the retina. During retinal development, Müller glia are one of the last cell types to be born. In lower vertebrates, such as zebrafish, Müller glia possess a remarkable capacity for retinal regeneration following various forms of injury through a reprogramming process in which endogenous Müller glia proliferate and differentiate into all types of retinal cells. In mammals, Müller glia become reactive in response to damage to protect or to further impair retinal function. Although mammalian Müller glia have regenerative potential, it is limited as far as repairing damaged retina. Lessons learned from zebrafish will help reveal the critical mechanisms involved in Müller glia reprogramming. Progress has been made in triggering Müller glia to reprogram and generate functional neurons to restore vision in mammals indicating that Müller glia reprogramming may be a promising therapeutic strategy for human retinal diseases. This review comprehensively summarizes the mechanisms related to retinal regeneration in model animals and the critical advanced progress made in Müller glia reprogramming in mammals.
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Affiliation(s)
- Hui Gao
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, 400038, China
| | - Luodan A
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, 400038, China
| | - Xiaona Huang
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, 400038, China
| | - Xi Chen
- Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Haiwei Xu
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, 400038, China.
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Abstract
In humans, various genetic defects or age-related diseases, such as diabetic retinopathies, glaucoma, and macular degeneration, cause the death of retinal neurons and profound vision loss. One approach to treating these diseases is to utilize stem and progenitor cells to replace neurons in situ, with the expectation that new neurons will create new synaptic circuits or integrate into existing ones. Reprogramming non-neuronal cells in vivo into stem or progenitor cells is one strategy for replacing lost neurons. Zebrafish have become a valuable model for investigating cellular reprogramming and retinal regeneration. This review summarizes our current knowledge regarding spontaneous reprogramming of Müller glia in zebrafish and compares this knowledge to research efforts directed toward reprogramming Müller glia in mammals. Intensive research using these animal models has revealed shared molecular mechanisms that make Müller glia attractive targets for cellular reprogramming and highlighted the potential for curing degenerative retinal diseases from intrinsic cellular sources.
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Affiliation(s)
- Manuela Lahne
- Center for Zebrafish Research, Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA; , .,Center for Stem Cells and Regenerative Medicine, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Mikiko Nagashima
- Department of Ophthalmology and Visual Sciences, University of Michigan School of Medicine, Ann Arbor, Michigan 48105, USA; ,
| | - David R Hyde
- Center for Zebrafish Research, Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA; , .,Center for Stem Cells and Regenerative Medicine, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Peter F Hitchcock
- Department of Ophthalmology and Visual Sciences, University of Michigan School of Medicine, Ann Arbor, Michigan 48105, USA; , .,Department of Cell and Developmental Biology, University of Michigan School of Medicine, Ann Arbor, Michigan 48105, USA
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8
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Nabinger DD, Altenhofen S, Bonan CD. Zebrafish models: Gaining insight into purinergic signaling and neurological disorders. Prog Neuropsychopharmacol Biol Psychiatry 2020; 98:109770. [PMID: 31678483 DOI: 10.1016/j.pnpbp.2019.109770] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 08/22/2019] [Accepted: 10/02/2019] [Indexed: 12/21/2022]
Abstract
Zebrafish (Danio rerio) has been considered a complementary model for biomedical studies, especially due to advantages such as external and rapid development, and genetic manipulation. There is growing interest in this model in neuroscience research since the species has morphological and physiological similarities to mammals and a complex behavioral repertoire. The purinergic signaling has been described in zebrafish, and purinoceptors and nucleotide- and nucleoside-metabolizing enzymes have already been identified in the central nervous system (CNS) of this species. The involvement of the purinergic system in several models of neurological disorders, such as Alzheimers disease, Parkinson's disease, epilepsy, schizophrenia, and autism has been investigated in zebrafish. This mini review presents several studies describing purinergic signaling in the zebrafish CNS and the action of this neurotransmitter system in models of neurological disorders using this species as a biological model. The use of pharmacological approaches at different stages of development may be a useful tool for preclinical assays and the testing of purinergic compounds as new alternatives for the treatment of neurological disorders.
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Affiliation(s)
- Débora Dreher Nabinger
- Laboratório de Neuroquímica e Psicofarmacologia, Programa de Pós-Graduação em Biologia Celular e Molecular, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Instituto Nacional de Ciência e Tecnologia em Doenças Cerebrais, Excitotoxicidade e Neuroproteção, Porto Alegre, RS, Brazil
| | - Stefani Altenhofen
- Laboratório de Neuroquímica e Psicofarmacologia, Programa de Pós-Graduação em Biologia Celular e Molecular, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina e Ciências da Saúde, Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Instituto Nacional de Ciência e Tecnologia em Doenças Cerebrais, Excitotoxicidade e Neuroproteção, Porto Alegre, RS, Brazil
| | - Carla Denise Bonan
- Laboratório de Neuroquímica e Psicofarmacologia, Programa de Pós-Graduação em Biologia Celular e Molecular, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina e Ciências da Saúde, Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Instituto Nacional de Ciência e Tecnologia em Doenças Cerebrais, Excitotoxicidade e Neuroproteção, Porto Alegre, RS, Brazil.
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9
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Medrano MP, Pisera-Fuster A, Bernabeu RO, Faillace MP. P2X7 and A 2A receptor endogenous activation protects against neuronal death caused by CoCl 2 -induced photoreceptor toxicity in the zebrafish retina. J Comp Neurol 2020; 528:2000-2020. [PMID: 31997350 DOI: 10.1002/cne.24869] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 01/09/2020] [Accepted: 01/22/2020] [Indexed: 12/20/2022]
Abstract
Injured retinas in mammals do not regenerate and heal with loss of function. The adult retina of zebrafish self-repairs after damage by activating cell-intrinsic mechanisms, which are regulated by extrinsic signal interactions. Among relevant regulatory extrinsic systems, purinergic signaling regulates progenitor proliferation during retinogenesis and regeneration and glia proliferation in proliferative retinopathies. ATP-activated P2X7 (P2RX7) and adenosine (P1R) receptors are involved in the progression of almost all retinopathies leading to blindness. Here, we examined P2RX7 and P1R participation in the retina regenerative response induced by photoreceptor damage caused by a specific dose of CoCl2 . First, we found that treatment of uninjured retinas with a potent agonist of P2RX7 (BzATP) provoked photoreceptor damage and mitotic activation of multipotent progenitors. In CoCl2 -injured retinas, blockade of endogenous extracellular ATP activity on P2RX7 caused further neurodegeneration, Müller cell gliosis, progenitor proliferation, and microglia reactivity. P2RX7 inhibition in injured retinas also increased the expression of lin28a and tnfα genes, which are related to multipotent progenitor proliferation. Levels of hif1α, vegf3r, and vegfaa mRNA were enhanced by blockade of P2RX7 immediately after injury, indicating hypoxic like damage and endothelial cell growth and proliferation. Complete depletion of extracellular nucleotides with an apyrase treatment strongly potentiated cell death and progenitor proliferation induced with CoCl2 . Blockade of adenosine P1 and A2A receptors (A2A R) had deleterious effects and deregulated normal timing for progenitor and precursor cell proliferation following photoreceptor damage. ATP via P2RX7 and adenosine via A2A R are survival extracellular signals key for retina regeneration in zebrafish.
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Affiliation(s)
- Matías P Medrano
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Antonella Pisera-Fuster
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ramón O Bernabeu
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - María Paula Faillace
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
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Van Houcke J, Geeraerts E, Vanhunsel S, Beckers A, Noterdaeme L, Christiaens M, Bollaerts I, De Groef L, Moons L. Extensive growth is followed by neurodegenerative pathology in the continuously expanding adult zebrafish retina. Biogerontology 2019. [PMID: 30382466 DOI: 10.1007/s10522-018-9780-6/figures/10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
The development of effective treatments for age-related neurodegenerative diseases remains one of the biggest medical challenges today, underscoring the high need for suitable animal model systems to improve our understanding of aging and age-associated neuropathology. Zebrafish have become an indispensable complementary model organism in gerontology research, yet their growth-control properties significantly differ from those in mammals. Here, we took advantage of the clearly defined and highly conserved structure of the fish retina to study the relationship between the processes of growth and aging in the adult zebrafish central nervous system (CNS). Detailed morphological measurements reveal an early phase of extensive retinal growth, where both the addition of new cells and stretching of existent tissue drive the increase in retinal surface. Thereafter, and coinciding with a significant decline in retinal growth rate, a neurodegenerative phenotype becomes apparent,-characterized by a loss of synaptic integrity, an age-related decrease in cell density and the onset of cellular senescence. Altogether, these findings support the adult zebrafish retina as a valuable model for gerontology research and CNS disease modeling and will hopefully stimulate further research into the mechanisms of aging and age-related pathology.
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Affiliation(s)
- Jessie Van Houcke
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Emiel Geeraerts
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Sophie Vanhunsel
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - An Beckers
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Lut Noterdaeme
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Marijke Christiaens
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Ilse Bollaerts
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Lies De Groef
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Lieve Moons
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium.
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11
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Chen X, Xiao B, Yang M, Chen M, Xiao Z. Adenosine diphosphate-sensitive P2Y11 receptor inhibits endothelial cell proliferation by induction of cell cycle arrest in the S phase and induces the expression of inflammatory mediators. J Cell Biochem 2019; 120:1783-1793. [PMID: 30144157 DOI: 10.1002/jcb.27482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 07/19/2018] [Indexed: 01/24/2023]
Abstract
Extracellular adenosine diphosphate (ADP) mediates a wide range of physiological effects as an extracellular signaling molecule, including platelet aggregation, vascular tone, cell proliferation, and apoptosis by interacting with plasma membrane P2 receptors. However, the effect of ADP on cell proliferation was contradictory. In this study, we found that ADP significantly inhibited cell proliferation of human umbilical vein endothelial cells at high concentrations (50 to 100 µM). Treatment with ADP did not induce cell apoptosis but instead induced cell cycle arrest in the S phase, which may be partly due to the downregulation of cyclin B1. The inhibition of cell proliferation was blocked by suramin, a nonspecific antagonist of the P2 receptors, and high concentrations of ADP significantly upregulated the messenger RNA (mRNA) and protein expression of P2Y11 in endothelial cells. Moreover, the downregulation of P2Y11 by RNA interference reversed the inhibition of cell proliferation. In addition, ADP (100 µM) can induce the formation of cytosolic autophagy in endothelial cells and a rapid phosphorylation of extracellular signal regulated kinase (ERK) 1/2, which is a canonical signal molecule downstream of P2Y receptors, accompanied by a mRNA expression of proinflammatory cytokines such as intercellular adhesion molecule 1 and vascular cell adhesion molecule 1. Taken together, our study excludes a mechanism for extracellular ADP impairing endothelial cells proliferation via P2Y11 receptor by downregulating cyclin B1 and arresting cell cycle at the S phase, besides, ADP induces cell autophagy and mRNA expression of inflammatory cytokines, whether it is mediated by Erk signaling pathways needs further studies to confirm.
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Affiliation(s)
- Xiaobin Chen
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, China
| | - Bolin Xiao
- Department of Stomatology, School of Stomatological, Lanzhou University, Lanzhou, China
| | - Mei Yang
- Department of Geriatric Cardiology, National Center for Clinical Research of Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Meifang Chen
- Department of Geriatric Cardiology, National Center for Clinical Research of Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Zhilin Xiao
- Department of Geriatric Cardiology, National Center for Clinical Research of Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, China
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12
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Ventura ALM, Dos Santos-Rodrigues A, Mitchell CH, Faillace MP. Purinergic signaling in the retina: From development to disease. Brain Res Bull 2018; 151:92-108. [PMID: 30458250 DOI: 10.1016/j.brainresbull.2018.10.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/14/2018] [Accepted: 10/23/2018] [Indexed: 02/07/2023]
Abstract
Retinal injuries and diseases are major causes of human disability involving vision impairment by the progressive and permanent loss of retinal neurons. During development, assembly of this tissue entails a successive and overlapping, signal-regulated engagement of complex events that include proliferation of progenitors, neurogenesis, cell death, neurochemical differentiation and synaptogenesis. During retinal damage, several of these events are re-activated with both protective and detrimental consequences. Purines and pyrimidines, along with their metabolites are emerging as important molecules regulating both retinal development and the tissue's responses to damage. The present review provides an overview of the purinergic signaling in the developing and injured retina. Recent findings on the presence of vesicular and channel-mediated ATP release by retinal and retinal pigment epithelial cells, adenosine synthesis and release, expression of receptors and intracellular signaling pathways activated by purinergic signaling in retinal cells are reported. The pathways by which purinergic receptors modulate retinal cell proliferation, migration and death of retinal cells during development and injury are summarized. The contribution of nucleotides to the self-repair of the injured zebrafish retina is also discussed.
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Affiliation(s)
- Ana Lucia Marques Ventura
- Department of Neurobiology, Neuroscience Program, Fluminense Federal University, Niterói, RJ, Brazil.
| | | | - Claire H Mitchell
- Department of Anatomy and Cell Biology, Ophthalmology, and Physiology, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Maria Paula Faillace
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay), Universidad de Buenos Aires y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.
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13
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Van Houcke J, Geeraerts E, Vanhunsel S, Beckers A, Noterdaeme L, Christiaens M, Bollaerts I, De Groef L, Moons L. Extensive growth is followed by neurodegenerative pathology in the continuously expanding adult zebrafish retina. Biogerontology 2018; 20:109-125. [PMID: 30382466 DOI: 10.1007/s10522-018-9780-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/26/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Jessie Van Houcke
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Emiel Geeraerts
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Sophie Vanhunsel
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - An Beckers
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Lut Noterdaeme
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Marijke Christiaens
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Ilse Bollaerts
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Lies De Groef
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium
| | - Lieve Moons
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Naamsestraat 61, Box 2464, 3000, Leuven, Belgium.
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Medrano MP, Pisera Fuster A, Sanchis PA, Paez N, Bernabeu RO, Faillace MP. Characterization of proliferative, glial and angiogenic responses after a CoCl
2
‐induced injury of photoreceptor cells in the adult zebrafish retina. Eur J Neurosci 2018; 48:3019-3042. [DOI: 10.1111/ejn.14113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 07/13/2018] [Accepted: 08/03/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Matias Pedro Medrano
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO‐Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Buenos Aires Argentina
| | - Antonella Pisera Fuster
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO‐Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Buenos Aires Argentina
| | - Pablo Antonio Sanchis
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO‐Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Buenos Aires Argentina
| | - Natalia Paez
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO‐Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Buenos Aires Argentina
| | - Ramon Oscar Bernabeu
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO‐Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Buenos Aires Argentina
- Departamento de FisiologíaFacultad de MedicinaUniversidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Maria Paula Faillace
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO‐Houssay) UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Buenos Aires Argentina
- Departamento de FisiologíaFacultad de MedicinaUniversidad de Buenos Aires (UBA) Buenos Aires Argentina
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15
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Beckers A, Van Dyck A, Bollaerts I, Van houcke J, Lefevere E, Andries L, Agostinone J, Van Hove I, Di Polo A, Lemmens K, Moons L. An Antagonistic Axon-Dendrite Interplay Enables Efficient Neuronal Repair in the Adult Zebrafish Central Nervous System. Mol Neurobiol 2018; 56:3175-3192. [DOI: 10.1007/s12035-018-1292-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 07/31/2018] [Indexed: 11/29/2022]
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Evaluation of the rewarding properties of nicotine and caffeine by implementation of a five-choice conditioned place preference task in zebrafish. Prog Neuropsychopharmacol Biol Psychiatry 2018; 84:160-172. [PMID: 29481898 DOI: 10.1016/j.pnpbp.2018.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/25/2018] [Accepted: 02/02/2018] [Indexed: 12/22/2022]
Abstract
The rewarding properties of drugs in zebrafish can be studied using the conditioned place preference (CPP) paradigm. Most devices that have been used for CPP consist of two-half tanks with or without a central chamber. Here we evaluated the rewarding effects of nicotine and caffeine using a tank with five arms distributed radially from a central chamber that we have denoted Fish Tank Radial Maze (FTRM). Zebrafish were trained to associate nicotine or caffeine with a coloured arm. In testing sessions to assess CPP induction, between two and five different arms were available to explore. We found that when offering the two arms, one of them associated to the drug mediating conditioning for 14 days, zebrafish showed nicotine-induced CPP but not caffeine-induced CPP. When zebrafish had the option to explore drug-paired arms together with new coloured arms as putative distractors, the nicotine-CPP strength was maintained for at least three days. The presence of novel environments induced caffeine-CPP, which was still positive after three days of testing sessions. Complementary behavioural data supported these findings. Nicotine-CPP was prevented by the histone deacetylase inhibitor phenylbutyrate administered during conditioning; however, there were no effects on caffeine-CPP. The specific acetylation of lysine 9 in histone 3 (H3-K9) was increased in nicotine-conditioned zebrafish brains. This study suggests that novel environmental cues facilitate drug-environment associations, and hence, the use of drugs of abuse.
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de Almeida-Pereira L, Repossi MG, Magalhães CF, Azevedo RDF, Corrêa-Velloso JDC, Ulrich H, Ventura ALM, Fragel-Madeira L. P2Y 12 but not P2Y 13 Purinergic Receptor Controls Postnatal Rat Retinogenesis In Vivo. Mol Neurobiol 2018; 55:8612-8624. [PMID: 29574630 DOI: 10.1007/s12035-018-1012-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 03/16/2018] [Indexed: 12/16/2022]
Abstract
Adenine nucleotides through P2Y1 receptor stimulation are known to control retinal progenitor cell (RPC) proliferation by modulating expression of the p57KIP2, a cell cycle regulator. However, the role of Gi protein-coupled P2Y12 and P2Y13 receptors also activated by adenine nucleotides in RPC proliferation is still unknown. Gene expression of the purinergic P2Y12 subtype was detected in rat retina during early postnatal days (P0 to P5), while expression levels of P2Y13 were low. Immunohistochemistry assays performed with rat retina on P3 revealed P2Y12 receptor expression in both Ki-67-positive cells in the neuroblastic layer and Ki-67-negative cells in the ganglion cell layer and inner nuclear layer. Nonetheless, P2Y13 receptor expression could not be detected in any stratum of rat retina. Intravitreal injection of PSB 0739 or clopidogrel, both selective P2Y12 receptor antagonists, increased by 20 and 15%, respectively, the number of Ki-67-positive cells following 24 h of exposure. Moreover, the P2Y12 receptor inhibition increased cyclin D1 and decreased p57KIP2 expression. However, there were no changes in the S phase of the cell cycle (BrdU-positive cells) or in mitosis (phospho-histone-H3-positive cells). Interestingly, an increase in the number of cyclin D1/TUNEL-positive cells after treatment with PSB 0739 was observed. These data suggest that activation of P2Y12 receptors is required for the successful exit of RPCs from cell cycle in the postnatal rat retina.
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Affiliation(s)
- Luana de Almeida-Pereira
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | - Marinna Garcia Repossi
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | - Camila Feitosa Magalhães
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | | | | | - Henning Ulrich
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | | | - Lucianne Fragel-Madeira
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil.
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Medrano MP, Bejarano CA, Battista AG, Venera GD, Bernabeu RO, Faillace MP. Injury-induced purinergic signalling molecules upregulate pluripotency gene expression and mitotic activity of progenitor cells in the zebrafish retina. Purinergic Signal 2017; 13:443-465. [PMID: 28710541 PMCID: PMC5714835 DOI: 10.1007/s11302-017-9572-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 05/31/2017] [Indexed: 02/06/2023] Open
Abstract
Damage in fish activates retina repair that restores sight. The purinergic signalling system serves multiple homeostatic functions and has been implicated in cell cycle control of progenitor cells in the developing retina. We examined whether changes in the expression of purinergic molecules were instrumental in the proliferative phase after injury of adult zebrafish retinas with ouabain. P2RY1 messenger RNA (mRNA) increased early after injury and showed maximal levels at the time of peak progenitor cell proliferation. Extracellular nucleotides, mainly ADP, regulate P2RY1 transcriptional and protein expression. The injury-induced upregulation of P2RY1 is mediated by an autoregulated mechanism. After injury, the transcriptional expression of ecto-nucleotidases and ecto-ATPases also increased and ecto-ATPase activity inhibitors decreased Müller glia-derived progenitor cell amplification. Inhibition of P2RY1 endogenous activation prevented progenitor cell proliferation at two intervals after injury: one in which progenitor Müller glia mitotically activates and the second one in which Müller glia-derived progenitor cells amplify. ADPβS induced the expression of lin28a and ascl1a genes in mature regions of uninjured retinas. The expression of these genes, which regulate multipotent Müller glia reprogramming, was significantly inhibited by blocking the endogenous activation of P2RY1 early after injury. We consistently observed that the number of glial fibrillary acidic protein-BrdU-positive Müller cells after injury was larger in the absence than in the presence of the P2RY1 antagonist. Ecto-ATPase activity inhibitors or P2RY1-specific antagonists did not modify apoptotic cell death at the time of peak progenitor cell proliferation. The results suggested that ouabain injury upregulates specific purinergic signals which stimulates multipotent progenitor cell response.
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Affiliation(s)
- Matías P Medrano
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay), UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Instituto de Química y Fisicoquímica Biológicas (IQUIFIB) Prof. Alejandro Paladini, UBA-CONICET, Buenos Aires, Argentina
| | - Claudio A Bejarano
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay), UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Ariadna G Battista
- Instituto de Química y Fisicoquímica Biológicas (IQUIFIB) Prof. Alejandro Paladini, UBA-CONICET, Buenos Aires, Argentina
| | - Graciela D Venera
- Instituto Universitario Italiano de Rosario (IUNIR), Santa Fe, Argentina
| | - Ramón O Bernabeu
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay), UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Maria Paula Faillace
- Instituto de Fisiología y Biofísica Prof. Bernardo Houssay (IFIBIO-Houssay), UBA y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
- Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina.
- IFIBIO-Houssay, Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Paraguay 2155 7° piso, C1121ABG, Ciudad Autónoma de Buenos Aires, Argentina.
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19
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Khalafalla FG, Greene S, Khan H, Ilves K, Monsanto MM, Alvarez R, Chavarria M, Nguyen J, Norman B, Dembitsky WP, Sussman MA. P2Y 2 Nucleotide Receptor Prompts Human Cardiac Progenitor Cell Activation by Modulating Hippo Signaling. Circ Res 2017; 121:1224-1236. [PMID: 28923792 DOI: 10.1161/circresaha.117.310812] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 09/08/2017] [Accepted: 09/15/2017] [Indexed: 12/31/2022]
Abstract
RATIONALE Autologous stem cell therapy using human c-Kit+ cardiac progenitor cells (hCPCs) is a promising therapeutic approach for treatment of heart failure (HF). However, hCPCs derived from aged patients with HF with genetic predispositions and comorbidities of chronic diseases exhibit poor proliferative and migratory capabilities, which impair overall reparative potential for injured myocardium. Therefore, empowering functionally compromised hCPCs with proregenerative molecules ex vivo is crucial for improving the therapeutic outcome in patients with HF. OBJECTIVE To improve hCPC proliferation and migration responses that are critical for regeneration by targeting proregenerative P2Y2 nucleotide receptor (P2Y2R) activated by extracellular ATP and UTP molecules released following injury/stress. METHODS AND RESULTS c-Kit+ hCPCs were isolated from cardiac tissue of patients with HF undergoing left ventricular assist device implantation surgery. Correlations between P2 nucleotide receptor expression and hCPC growth kinetics revealed downregulation of select P2 receptors, including P2Y2R, in slow-growing hCPCs compared with fast growers. hCPC proliferation and migration significantly improved by overexpressing or stimulating P2Y2R. Mechanistically, P2Y2R-induced proliferation and migration were dependent on activation of YAP (yes-associated protein)-the downstream effector of Hippo signaling pathway. CONCLUSIONS Proliferation and migration of functionally impaired hCPCs are enhanced by P2Y2R-mediated YAP activation, revealing a novel link between extracellular nucleotides released during injury/stress and Hippo signaling-a central regulator of cardiac regeneration. Functional correlations exist between hCPC phenotypic properties and P2 purinergic receptor expression. Lack of P2Y2R and other crucial purinergic stress detectors could compromise hCPC responsiveness to presence of extracellular stress signals. These findings set the stage for subsequent studies to assess purinergic signaling modulation as a potential strategy to improve therapeutic outcome for use of hCPCs in patients with HF.
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Affiliation(s)
- Farid G Khalafalla
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Steven Greene
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Hashim Khan
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Kelli Ilves
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Megan M Monsanto
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Roberto Alvarez
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Monica Chavarria
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Jonathan Nguyen
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Benjamin Norman
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Walter P Dembitsky
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Mark A Sussman
- From the SDSU Heart Research Institute, San Diego State University, CA (F.G.K., S.G., H.K., K.I., M.M.M., R.A., M.C., J.N., B.N., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.).
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20
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de Almeida-Pereira L, Magalhães CF, Repossi MG, Thorstenberg MLP, Sholl-Franco A, Coutinho-Silva R, Ventura ALM, Fragel-Madeira L. Adenine Nucleotides Control Proliferation In Vivo of Rat Retinal Progenitors by P2Y 1 Receptor. Mol Neurobiol 2016; 54:5142-5155. [PMID: 27558237 DOI: 10.1007/s12035-016-0059-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/15/2016] [Indexed: 11/30/2022]
Abstract
Previous studies demonstrated that exogenous ATP is able to regulate proliferation of retinal progenitor cells (RPCs) in vitro possibly via P2Y1 receptor, a G protein-coupled receptor. Here, we evaluated the function of adenine nucleotides in vivo during retinal development of newborn rats. Intravitreal injection of apyrase, an enzyme that hydrolyzes nucleotides, reduced cell proliferation in retinas at postnatal day 2 (P2). This decrease was reversed when retinas were treated together with ATPγ-S or ADPβ-S, two hydrolysis-resistant analogs of ATP and ADP, respectively. During early postnatal days (P0 to P5), an increase in ectonucleotidase (E-NTPDase) activity was observed in the retina, suggesting a decrease in the availability of adenine nucleotides, coinciding with the end of proliferation. Interestingly, intravitreal injection of the E-NTPDase inhibitor ARL67156 increased proliferation by around 60 % at P5 rats. Furthermore, immunolabeling against P2Y1 receptor was observed overall in retina layers from P2 rats, including proliferating Ki-67-positive cells in the neuroblastic layer (NBL), suggesting that this receptor could be responsible for the action of adenine nucleotides upon proliferation of RPCs. Accordingly, intravitreal injection of MRS2179, a selective antagonist of P2Y1 receptors, reduced cell proliferation by approximately 20 % in P2 rats. Moreover, treatment with MRS 2179 caused an increase in p57KIP2 and cyclin D1 expression, a reduction in cyclin E and Rb phosphorylated expression and in BrdU-positive cell number. These data suggest that the adenine nucleotides modulate the proliferation of rat RPCs via activation of P2Y1 receptors regulating transition from G1 to S phase of the cell cycle.
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Affiliation(s)
- Luana de Almeida-Pereira
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | - Camila Feitosa Magalhães
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | - Marinna Garcia Repossi
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | | | - Alfred Sholl-Franco
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Robson Coutinho-Silva
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Lucianne Fragel-Madeira
- Department of Neurobiology, Institute of Biology, Fluminense Federal University, Niterói, Brazil.
- Laboratório de Desenvolvimento e Regeneração Neural, Departmento de Neurobiologia, Universidade Federal Fluminense, Cx. Postal 100180, Niterói, RJ, 24020-141, Brazil.
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21
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Lemmens K, Bollaerts I, Bhumika S, de Groef L, Van Houcke J, Darras VM, Van Hove I, Moons L. Matrix metalloproteinases as promising regulators of axonal regrowth in the injured adult zebrafish retinotectal system. J Comp Neurol 2015; 524:1472-93. [PMID: 26509469 DOI: 10.1002/cne.23920] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/16/2015] [Accepted: 10/26/2015] [Indexed: 02/01/2023]
Abstract
Overcoming the failure of axon regeneration in the mammalian central nervous system (CNS) after injury remains a major challenge, which makes the search for proregenerative molecules essential. Matrix metalloproteinases (MMPs) have been implicated in axonal outgrowth during CNS development and show increased expression levels during vertebrate CNS repair. In mammals, MMPs are believed to alter the suppressive extracellular matrix to become more permissive for axon regrowth. We investigated the role of MMPs in axonal regeneration following optic nerve crush (ONC) in adult zebrafish, which fully recover from such injuries due to a high intrinsic axon growth capacity and a less inhibitory environment. Lowering general retinal MMP activity through intravitreal injections of GM6001 after ONC strongly reduced retinal ganglion cell (RGC) axonal regrowth, without influencing RGC survival. Based on a recently performed transcriptome profiling study, the expression pattern of four MMPs after ONC was determined via combined use of western blotting and immunostainings. Mmp-2 and -13a were increasingly present in RGC somata during axonal regrowth. Moreover, Mmp-2 and -9 became upregulated in regrowing RGC axons and inner plexiform layer (IPL) synapses, respectively. In contrast, after an initial rise in IPL neurites and RGC axons during the injury response, Mmp-14 expression decreased during regeneration. Altogether, a phase-dependent expression pattern for each specific MMP was observed, implicating them in axonal regrowth and inner retina remodeling after injury. In conclusion, these data suggest a novel, neuron-intrinsic function for multiple MMPs in axon regrowth that is distinct from breaking down environmental barriers. J. Comp. Neurol. 524:1472-1493, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Kim Lemmens
- Laboratory of Neural Circuit Development and Regeneration, Biology Department, KU Leuven, Leuven, Belgium
| | - Ilse Bollaerts
- Laboratory of Neural Circuit Development and Regeneration, Biology Department, KU Leuven, Leuven, Belgium
| | - Stitipragyan Bhumika
- Laboratory of Comparative Endocrinology, Biology Department, KU Leuven, Leuven, Belgium
| | - Lies de Groef
- Laboratory of Neural Circuit Development and Regeneration, Biology Department, KU Leuven, Leuven, Belgium
| | - Jessie Van Houcke
- Laboratory of Neural Circuit Development and Regeneration, Biology Department, KU Leuven, Leuven, Belgium
| | - Veerle M Darras
- Laboratory of Comparative Endocrinology, Biology Department, KU Leuven, Leuven, Belgium
| | - Inge Van Hove
- Laboratory of Neural Circuit Development and Regeneration, Biology Department, KU Leuven, Leuven, Belgium
| | - Lieve Moons
- Laboratory of Neural Circuit Development and Regeneration, Biology Department, KU Leuven, Leuven, Belgium
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Reichenbach A, Bringmann A. Purinergic signaling in retinal degeneration and regeneration. Neuropharmacology 2015; 104:194-211. [PMID: 25998275 DOI: 10.1016/j.neuropharm.2015.05.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 05/07/2015] [Accepted: 05/07/2015] [Indexed: 02/01/2023]
Abstract
Purinergic signaling is centrally involved in mediating the degeneration of the injured and diseased retina, the induction of retinal gliosis, and the protection of the retinal tissue from degeneration. Dysregulated calcium signaling triggered by overactivation of P2X7 receptors is a crucial step in the induction of neuronal and microvascular cell death under pathogenic conditions like ischemia-hypoxia, elevated intraocular pressure, and diabetes, respectively. Overactivation of P2X7 plays also a pathogenic role in inherited and age-related photoreceptor cell death and in the age-related dysfunction and degeneration of the retinal pigment epithelium. Gliosis of micro- and macroglial cells, which is induced and/or modulated by purinergic signaling and associated with an impaired homeostatic support to neurons, and the ATP-mediated propagation of retinal gliosis from a focal injury into the surrounding noninjured tissue are involved in inducing secondary cell death in the retina. On the other hand, alterations in the glial metabolism of extracellular nucleotides, resulting in a decreased level of ATP and an increased level of adenosine, may be neuroprotective in the diseased retina. Purinergic signals stimulate the proliferation of retinal glial cells which contributes to glial scarring which has protective effects on retinal degeneration and adverse effects on retinal regeneration. Pharmacological modulation of purinergic receptors, e.g., inhibition of P2X and activation of adenosine receptors, may have clinical importance for the prevention of photoreceptor, neuronal, and microvascular cell death in diabetic retinopathy, retinitis pigmentosa, age-related macular degeneration, and glaucoma, respectively, for the clearance of retinal edema, and the inhibition of dysregulated cell proliferation in proliferative retinopathies. This article is part of a Special Issue entitled 'Purines in Neurodegeneration and Neuroregeneration'.
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Affiliation(s)
- Andreas Reichenbach
- Paul Flechsig Institute of Brain Research, University of Leipzig, Leipzig, Germany.
| | - Andreas Bringmann
- Department of Ophthalmology and Eye Hospital, University of Leipzig, Leipzig, Germany
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24
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Wang W, Luo J, Xiang F, Liu X, Jiang M, Liao L, Hu J. Nucleolin down-regulation is involved in ADP-induced cell cycle arrest in S phase and cell apoptosis in vascular endothelial cells. PLoS One 2014; 9:e110101. [PMID: 25290311 PMCID: PMC4188626 DOI: 10.1371/journal.pone.0110101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 09/16/2014] [Indexed: 01/20/2023] Open
Abstract
High concentration of extracellular ADP has been reported to induce cell apoptosis, but the molecular mechanisms remain not fully elucidated. In this study, we found by serendipity that ADP treatment of human umbilical vein endothelial cells (HUVEC) and human aortic endothelial cells (HAEC) down-regulated the protein level of nucleolin in a dose- and time-dependent manner. ADP treatment did not decrease the transcript level of nucloelin, suggesting that ADP might induce nucleolin protein degradation. HUVEC and HAEC expressed ADP receptor P2Y13 receptor, but did not express P2Y1 or P2Y12 receptors. However, P2Y1, 12, 13 receptor antagonists MRS2179, PSB0739, MRS2211 did not inhibit ADP-induced down-regulation of nucleolin. Moreover, MRS2211 itself down-regulated nucleolin protein level. In addition, 2-MeSADP, an agonist for P2Y1, 12 and 13 receptors, did not down-regulate nucleolin protein. These results suggested that ADP-induced nucleolin down-regulation was not due to the activation of P2Y1, 12, or 13 receptors. We also found that ADP treatment induced cell cycle arrest in S phase, cell apoptosis and cell proliferation inhibition via nucleolin down-regulation. The over-expression of nucleolin by gene transfer partly reversed ADP-induced cell cycle arrest, cell apoptosis and cell proliferation inhibition. Furthermore, ADP sensitized HUVEC to cisplatin-induced cell death by the down-regulation of Bcl-2 expression. Taken together, we found, for the first time to our knowledge, a novel mechanism by which ADP regulates cell proliferation by induction of cell cycle arrest and cell apoptosis via targeting nucelolin.
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MESH Headings
- Adenosine Diphosphate/analogs & derivatives
- Adenosine Diphosphate/pharmacology
- Antineoplastic Agents/pharmacology
- Aorta/cytology
- Aorta/drug effects
- Aorta/metabolism
- Apoptosis/drug effects
- Azo Compounds/pharmacology
- Cell Line
- Cell Proliferation/drug effects
- Cisplatin/pharmacology
- Dose-Response Relationship, Drug
- Endothelial Cells/cytology
- Endothelial Cells/drug effects
- Endothelial Cells/metabolism
- Gene Expression Regulation
- Human Umbilical Vein Endothelial Cells/cytology
- Human Umbilical Vein Endothelial Cells/drug effects
- Human Umbilical Vein Endothelial Cells/metabolism
- Humans
- Monocytes/cytology
- Monocytes/drug effects
- Monocytes/metabolism
- Phosphoproteins/antagonists & inhibitors
- Phosphoproteins/genetics
- Phosphoproteins/metabolism
- Primary Cell Culture
- Proto-Oncogene Proteins c-bcl-2/antagonists & inhibitors
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Purinergic Agonists/pharmacology
- Purinergic Antagonists/pharmacology
- Pyridoxal Phosphate/analogs & derivatives
- Pyridoxal Phosphate/pharmacology
- RNA, Messenger/antagonists & inhibitors
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA-Binding Proteins/antagonists & inhibitors
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Receptors, Purinergic P2/genetics
- Receptors, Purinergic P2/metabolism
- Receptors, Purinergic P2Y1/deficiency
- Receptors, Purinergic P2Y1/genetics
- Receptors, Purinergic P2Y12/deficiency
- Receptors, Purinergic P2Y12/genetics
- S Phase Cell Cycle Checkpoints/drug effects
- S Phase Cell Cycle Checkpoints/genetics
- Signal Transduction
- Thionucleotides/pharmacology
- Nucleolin
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Affiliation(s)
- Wenmeng Wang
- Department of Internal Medicine, Hunan Armed Police Force's Hospital, Changsha, Hunan, China
- Medical Research Center, Changsha Central Hospital, Changsha, Hunan, China
| | - Junqing Luo
- Department of Internal Medicine, Hunan Armed Police Force's Hospital, Changsha, Hunan, China
| | - Fang Xiang
- Department of Internal Medicine, Hunan Armed Police Force's Hospital, Changsha, Hunan, China
| | - Xueting Liu
- Medical Research Center, Changsha Central Hospital, Changsha, Hunan, China
| | - Manli Jiang
- Medical Research Center, Changsha Central Hospital, Changsha, Hunan, China
| | - Lingjuan Liao
- Medical Research Center, Changsha Central Hospital, Changsha, Hunan, China
| | - Jinyue Hu
- Medical Research Center, Changsha Central Hospital, Changsha, Hunan, China
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Abstract
Müller glia are the major glial component of the retina. They are one of the last retinal cell types to be born during development, and they function to maintain retinal homeostasis and integrity. In mammals, Müller glia respond to retinal injury in various ways that can be either protective or detrimental to retinal function. Although these cells can be coaxed to proliferate and generate neurons under special circumstances, these responses are meagre and insufficient for repairing a damaged retina. By contrast, in teleost fish (such as zebrafish), the response of Müller glia to retinal injury involves a reprogramming event that imparts retinal stem cell characteristics and enables them to produce a proliferating population of progenitors that can regenerate all major retinal cell types and restore vision. Recent studies have revealed several important mechanisms underlying Müller glial cell reprogramming and retina regeneration in fish that may lead to new strategies for stimulating retina regeneration in mammals.
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Affiliation(s)
- Daniel Goldman
- Molecular and Behavioral Neuroscience Institute and Department of
Biological Chemistry, University of Michigan, Ann Arbor, MI 48109
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Tappeiner C, Balmer J, Iglicki M, Schuerch K, Jazwinska A, Enzmann V, Tschopp M. Characteristics of rod regeneration in a novel zebrafish retinal degeneration model using N-methyl-N-nitrosourea (MNU). PLoS One 2013; 8:e71064. [PMID: 23951079 PMCID: PMC3741320 DOI: 10.1371/journal.pone.0071064] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 06/25/2013] [Indexed: 01/01/2023] Open
Abstract
Primary loss of photoreceptors caused by diseases such as retinitis pigmentosa is one of the main causes of blindness worldwide. To study such diseases, rodent models of N-methyl-N-nitrosourea (MNU)-induced retinal degeneration are widely used. As zebrafish (Danio rerio) are a popular model system for visual research that offers persistent retinal neurogenesis throughout the lifetime and retinal regeneration after severe damage, we have established a novel MNU-induced model in this species. Histology with staining for apoptosis (TUNEL), proliferation (PCNA), activated Müller glial cells (GFAP), rods (rhodopsin) and cones (zpr-1) were performed. A characteristic sequence of retinal changes was found. First, apoptosis of rod photoreceptors occurred 3 days after MNU treatment and resulted in a loss of rod cells. Consequently, proliferation started in the inner nuclear layer (INL) with a maximum at day 8, whereas in the outer nuclear layer (ONL) a maximum was observed at day 15. The proliferation in the ONL persisted to the end of the follow-up (3 months), interestingly, without ongoing rod cell death. We demonstrate that rod degeneration is a sufficient trigger for the induction of Müller glial cell activation, even if only a minimal number of rod cells undergo cell death. In conclusion, the use of MNU is a simple and feasible model for rod photoreceptor degeneration in the zebrafish that offers new insights into rod regeneration.
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Affiliation(s)
- Christoph Tappeiner
- Department of Ophthalmology, Inselspital, University of Bern, Bern, Switzerland
| | - Jasmin Balmer
- Department of Ophthalmology, Inselspital, University of Bern, Bern, Switzerland
| | - Matias Iglicki
- Department of Ophthalmology, Inselspital, University of Bern, Bern, Switzerland
- Department of Ophthalmology, Hospital de Clinicas, University of Buenos Aires, Buenos Aires, Argentina
| | - Kaspar Schuerch
- Department of Ophthalmology, Inselspital, University of Bern, Bern, Switzerland
| | - Anna Jazwinska
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Volker Enzmann
- Department of Ophthalmology, Inselspital, University of Bern, Bern, Switzerland
| | - Markus Tschopp
- Department of Ophthalmology, Inselspital, University of Bern, Bern, Switzerland
- Department of Ophthalmology, University Hospital of Basel, Basel, Switzerland
- * E-mail:
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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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28
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Distribution and development of P2Y1-purinoceptors in the mouse retina. J Mol Histol 2013; 44:639-44. [PMID: 23907621 DOI: 10.1007/s10735-013-9525-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Accepted: 07/12/2013] [Indexed: 10/26/2022]
Abstract
There is increasing evidence that ATP acts on purinergic receptors and mediates synaptic transmission in the retina. In a previous study, we raised the possibility that P2X-purinoceptors, presumably P2X(2)-purinoceptors in OFF-cholinergic amacrine cells, play a key role in the formation of OFF pathway-specific modulation. In this study, we examined whether the P2Y(1)-purinoceptors can function in cholinergic amacrine cells in the mouse retina since cholinergic amacrine cells in the rat retina express P2Y(1)-purinoceptors. P2Y(1)-purinoceptors were shown to be expressed in dendrites of both ON- and OFF-cholinergic amacrine cells in adults. At postnatal day 7, there was immunoreactivity for P2Y(1)-purinoceptors in the soma of cholinergic amacrine cells. At postnatal day 14, weak immunoreactivity for P2Y(1)-purinoceptors was detected in the dendrites but not in the soma of cholinergic amacrine cells. At postnatal day 21, strong immunoreactivity for P2Y(1)-purinoceptors was detected in dendrites of cholinergic amacrine cells. The expression pattern of P2Y(1)-purinoceptors was not affected by visual experience. We concluded that P2Y(1)-purinoceptors are not involved in the OFF-pathway-specific signal transmission in cholinergic amacrine cells of the mouse retina.
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30
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Wei Q, Costanzi S, Liu QZ, Gao ZG, Jacobson KA. Activation of the P2Y1 receptor induces apoptosis and inhibits proliferation of prostate cancer cells. Biochem Pharmacol 2011; 82:418-25. [PMID: 21632028 PMCID: PMC3140712 DOI: 10.1016/j.bcp.2011.05.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 05/12/2011] [Accepted: 05/13/2011] [Indexed: 12/31/2022]
Abstract
G protein-coupled receptors, the largest cell surface receptor family, have emerged as critical players in cell death and survival. High gene expression level of the G(q)-coupled P2Y(1) nucleotide receptor in PC-3 prostate cancer cells was demonstrated using real-time quantitative PCR and confirmed by Western blotting and confocal laser scanning microscopy. A selective P2Y(1) receptor agonist, the ADP analogue MRS2365, concentration-dependently induced intracellular calcium mobilization (EC(50) 5.28nM), which was diminished by P2Y(1) receptor-selective antagonist MRS2500. P2Y(1) receptor activation by MRS2365 induced apoptosis in assays of Caspase-3, LDH release, and annexin-V staining. The pro-apoptotic effect of MRS2365 was blocked by MRS2500, P2Y(1) siRNA, and an inhibitor of the MAP kinase pathway PD98059. MRS2365 significantly inhibited the proliferation of PC-3 cells, examined using a MTT assay. Thus, activation of the P2Y(1) receptor induced cell death and inhibited growth of human prostatic carcinoma PC-3 cells. Activation of the P2Y(1) receptor should be a novel and promising therapeutic strategy for prostate cancer.
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Affiliation(s)
- Qiang Wei
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0810, USA
- Guangdong Institute of Kidney Diseases, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Stefano Costanzi
- Laboratory of Biological Modeling, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0810, USA
| | - Qiu-Zhen Liu
- Infectious Disease and Immunogenetics Section, Department of Transfusion Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892-0810, USA
| | - Zhan-Guo Gao
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0810, USA
| | - Kenneth A. Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0810, USA
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Ricatti MJ, Battista AG, Zorrilla Zubilete M, Faillace MP. Purinergic signals regulate daily S-phase cell activity in the ciliary marginal zone of the zebrafish retina. J Biol Rhythms 2011; 26:107-17. [PMID: 21454291 DOI: 10.1177/0748730410395528] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Regeneration and growth that occur in the adult teleost retina have been helpful in identifying molecular and cellular mechanisms underlying cell proliferation and differentiation. Here, it is reported that S-phase cell number, in the ciliary marginal zone (CMZ) of the adult zebrafish retina, exhibits day-night variations with a mid-light phase peak. Oscillations persist for 24 h in constant darkness (DD), suggesting control by a circadian component. However, variations in the S-phase nuclei number were rapidly dampened and not present during and after a second day in DD. An ADPβS treatment significantly enhanced S-phase activity at night to mid-light levels, as assessed by in vivo BrdU incorporation in a 2-h interval. Moreover, daylight increase in S-phase cell number was completely abolished when extracellular nucleotide levels or their extracellular hydrolysis by ectonucleoside triphosphate diphosphohydrolases (NTPDases) were significantly disrupted or when a selective antagonist of purinergic P2Y1 receptors was intraocularly injected before BrdU exposure. Extracellular nucleotides and NTPDase action were also important for maintaining nocturnal low levels of S-phase activity in the CMZ. Finally, we showed that mRNAs of NTPDases 1, 2 (3 isoforms), and 3 as well as of P2Y1 receptor are present in the neural retina of zebrafish. NTPDase mRNA expression exhibited a 2-fold increment in light versus dark conditions as assessed by quantitative RT-PCR, whereas P2Y1 receptor mRNA levels did not show significant day-night variations. This study demonstrates a key role for nucleotides, principally ADP as a paracrine signal, as well as for NTPDases, the plasma membrane-bound enzymes that control extracellular nucleotide concentration, for inducing S-phase cell entry in the CMZ-normally associated with retinal growth-throughout the light-dark cycle.
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Affiliation(s)
- Maria Jimena Ricatti
- Facultad de Medicina, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
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Chara O, Espelt MV, Krumschnabel G, Schwarzbaum PJ. Regulatory volume decrease and P receptor signaling in fish cells: mechanisms, physiology, and modeling approaches. ACTA ACUST UNITED AC 2011; 315:175-202. [PMID: 21290610 DOI: 10.1002/jez.662] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Accepted: 11/30/2010] [Indexed: 11/11/2022]
Abstract
For animal cell plasma membranes, the permeability of water is much higher than that of ions and other solutes, and exposure to hyposmotic conditions almost invariably causes rapid water influx and cell swelling. In this situation, cells deploy regulatory mechanisms to preserve membrane integrity and avoid lysis. The phenomenon of regulatory volume decrease, the partial or full restoration of cell volume following cell swelling, is well-studied in mammals, with uncountable investigations yielding details on the signaling network and the effector mechanisms involved in the process. In comparison, cells from other vertebrates and from invertebrates received little attention, despite of the fact that e.g. fish cells could present rewarding model systems given the diversity in ecology and lifestyle of this animal group that may be reflected by an equal diversity of physiological adaptive mechanisms, including those related to cell volume regulation. In this review, we therefore present an overview on the most relevant aspects known on hypotonic volume regulation presently known in fish, summarizing transporters and signaling pathways described so far, and then focus on an aspect we have particularly studied over the past years using fish cell models, i.e. the role of extracellular nucleotides in mediating cell volume recovery of swollen cells. We, furthermore, present diverse modeling approaches developed on the basis of data derived from studies with fish and other models and discuss their potential use for gaining insight into the theoretical framework of volume regulation.
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Affiliation(s)
- Osvaldo Chara
- IFLYSIB (CONICET, UNLP), La Plata, Provincia de Buenos Aires, Argentina
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Loiola EC, Ventura ALM. Release of ATP from avian Müller glia cells in culture. Neurochem Int 2010; 58:414-22. [PMID: 21193002 DOI: 10.1016/j.neuint.2010.12.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 12/17/2010] [Accepted: 12/20/2010] [Indexed: 01/07/2023]
Abstract
ATP can be released from neurons and act as a neuromodulator in the nervous system. Besides neurons, cortical astrocytes also are capable of releasing ATP from acidic vesicles in a Ca(2+)-dependent way. In the present work, we investigated the release of ATP from Müller glia cells of the chick embryo retina by examining quinacrine staining and by measuring the extracellular levels of ATP in purified Müller glia cultures. Our data revealed that glial cells could be labeled with quinacrine, a reaction that was prevented by incubation of the cells with 1μM bafilomycin A1 or 2μM Evans blue, potent inhibitors of vacuolar ATPases and of the vesicular nucleotide transporter, respectively. Either 50mM KCl or 1mM glutamate was able to decrease quinacrine staining of the cells, as well as to increase the levels of ATP in the extracellular medium by 77% and 89.5%, respectively, after a 5min incubation of the cells. Glutamate-induced rise in extracellular ATP could be mimicked by 100μM kainate (81.5%) but not by 100μM NMDA in medium without MgCl(2) but with 2mM glycine. However, both glutamate- and kainate-induced increase in extracellular ATP levels were blocked by 50μM of the glutamatergic antagonists DNQX and MK-801, suggesting the involvement of both NMDA and non-NMDA receptors. Extracellular ATP accumulation induced by glutamate was also blocked by incubation of the cells with 30μM BAPTA-AM or 1μM bafilomycin A1. These results suggest that glutamate, through activation of both NMDA and non-NMDA receptors, induces the release of ATP from retinal Müller cells through a calcium-dependent exocytotic mechanism.
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Affiliation(s)
- Erick Correia Loiola
- Department of Neurobiology, Neuroscience Program, Institute of Biology, Federal Fluminense University, Niterói, RJ, Brazil
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