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Rodkin S, Nwosu C, Raevskaya M, Khanukaev M, Bekova K, Vasilieva I, Vishnyak D, Tolmacheva A, Efremova E, Gasanov M, Tyurin A. The Role of Hydrogen Sulfide in the Localization and Expression of p53 and Cell Death in the Nervous Tissue in Traumatic Brain Injury and Axotomy. Int J Mol Sci 2023; 24:15708. [PMID: 37958692 PMCID: PMC10650615 DOI: 10.3390/ijms242115708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/19/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Traumatic brain injury (TBI) is one of the leading causes of disability and death worldwide. It is characterized by various molecular-cellular events, with the main ones being apoptosis and damage to axons. To date, there are no clinically effective neuroprotective drugs. In this study, we examined the role of hydrogen sulfide (H2S) in the localization and expression of the key pro-apoptotic protein p53, as well as cell death in the nervous tissue in TBI and axotomy. We used a fast donor (sodium sulphide, Na2S) H2S and a classic inhibitor (aminooxyacetic acid, AOAA) of cystathionine β-synthase (CBS), which is a key enzyme in H2S synthesis. These studies were carried out on three models of neurotrauma in vertebrates and invertebrates. As a result, it was found that Na2S exhibits a pronounced neuroprotective effect that reduces the number of TUNEL-positive neurons and glial cells in TBI and apoptotic glia in axotomy. This effect could be realized through the Na2S-dependent decrease in the level of p53 in the cells of the nervous tissue of vertebrates and invertebrates, which we observed in our study. We also observed the opposite effect when using AOAA, which indicates the important role of CBS in the regulation of p53 expression and death of neurons and glial cells in TBI and axotomy.
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Affiliation(s)
- Stanislav Rodkin
- Department of Bioengineering, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, 344000 Rostov-on-Don, Russia
| | - Chizaram Nwosu
- Department of Bioengineering, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, 344000 Rostov-on-Don, Russia
| | - Margarita Raevskaya
- Department of Bioengineering, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, 344000 Rostov-on-Don, Russia
| | - Maxim Khanukaev
- Department of Instrumentation and Biomedical Engineering, Don State Technical University, 344000 Rostov-on-Don, Russia
| | - Khava Bekova
- Department of Nervous Diseases and Neurosurgery, Rostov State Medical University, 344022 Rostov-on-Don, Russia
| | - Inna Vasilieva
- Department of Polyclinic Therapy, N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia
| | - Diana Vishnyak
- Department of Internal Diseases, Surgut State University, Lenina, 1, Nephrology Department, Surgut District Clinical Hospital, Energetikov, 24/3, 628400 Surgut, Russia
| | - Anastasia Tolmacheva
- Department of Faculty Therapy Named after Professor G.D. Zalessky, Novosibirsk State Medical University, Krasny Prospekt, 52, Department of Medical Rehabilitation, Novosibirsk Regional Clinical Hospital of War Veterans No. 3, Demyan the Poor, 71, 630005 Novosibirsk, Russia
| | - Elena Efremova
- Department of Therapy and Occupational Diseases, Ulyanovsk State University, Lev Tolstoy Street 42, 432017 Ulyanovsk, Russia;
| | - Mitkhat Gasanov
- Internal Medicine Department, Institute of Medical Education, The Yaroslav-the-Wise Novgorod State University, Derzhavina St. 6, 173020 Veliky Novgorod, Russia
| | - Anton Tyurin
- Internal Medicine Department, Bashkir State Medical University, 450008 Ufa, Russia
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Rodkin S, Khaitin A, Pitinova M, Dzreyan V, Guzenko V, Rudkovskii M, Sharifulina S, Uzdensky A. The Localization of p53 in the Crayfish Mechanoreceptor Neurons and Its Role in Axotomy-Induced Death of Satellite Glial Cells Remote from the Axon Transection Site. J Mol Neurosci 2019; 70:532-541. [PMID: 31823284 DOI: 10.1007/s12031-019-01453-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 11/20/2019] [Indexed: 12/12/2022]
Abstract
Neuron and glia death after axon transection is regulated by various signaling proteins. Protein p53 is a key regulator of diverse cell functions including stress response, DNA repair, proliferation, and apoptosis. We showed that p53 was overexpressed in crayfish ganglia after bilateral axotomy. In the isolated crayfish stretch receptor, a simple natural neuroglial preparation, which consists of a single mechanoreceptor neuron (MRN) enveloped by glial cells, p53 regulated axotomy-induced death of glial cells remote from the axon transection site. In MRN, p53 immunofluorescence was highest in the nucleolus and in the narrow cytoplasmic ring around the nucleus; its levels in the nucleus and cytoplasm were lower. After axotomy, p53 accumulated in the neuronal perikaryon. Its immunofluorescence also increased in the neuronal and glial nuclei. However, p53 immunofluorescence in the most of neuronal nucleoli disappeared. Axotomy-induced apoptosis of remote glial cells increased in the presence of p53 activators WR-1065 and nutlin-3 but reduced by pifithrin-α that inhibits transcriptional activity of p53. Pifithrin-μ that inhibits p53 effect on mitochondria increased axotomy-induced apoptosis of remote glial cells but reduced their necrosis. Therefore, axotomy-induced apoptosis of remote glial cells was associated with p53 effect on transcription processes, whereas glial necrosis was rather associated with transcription-independent p53 effect on mitochondria. Apparently, the fate of remote glial cells in the axotomized crayfish stretch receptor is determined by the balance between different modalities of p53 activity.
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Affiliation(s)
- Stanislav Rodkin
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Andrey Khaitin
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Maria Pitinova
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Valentina Dzreyan
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Valeria Guzenko
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Mikhail Rudkovskii
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Svetlana Sharifulina
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia
| | - Anatoly Uzdensky
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prosp., of. 505, Rostov-on-Don, 344090, Russia.
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Popova LB, Kamysheva AL, Rokitskaya TI, Korshunova GA, Kirsanov RS, Kotova EA, Antonenko YN. Protonophoric and Photodynamic Effects of Fluorescein Decyl(triphenyl)phosphonium Ester on the Electrical Activity of Pond Snail Neurons. BIOCHEMISTRY (MOSCOW) 2019; 84:1151-1165. [DOI: 10.1134/s0006297919100043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Demyanenko S, Berezhnaya E, Neginskaya M, Rodkin S, Dzreyan V, Pitinova M. Сlass II histone deacetylases in the post-stroke recovery period-expression, cellular, and subcellular localization-promising targets for neuroprotection. J Cell Biochem 2019; 120:19590-19609. [PMID: 31264264 DOI: 10.1002/jcb.29266] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 06/12/2019] [Indexed: 12/13/2022]
Abstract
Histone deacetylases (HDAC) inhibitors can protect nerve cells after a stroke, but it is unclear which HDAC isoform is involved in this effect. We studied cellular and intracellular rearrangement of class II HDACs at late periods after photothrombotic infarct (PTI) in the mouse sensorimotor cortex in the tissue surrounding the ischemia core and in the corresponding region of the contralateral hemisphere. We observed a decrease in HDAC4 in cortical neurons and an increase in its nuclear translocation. HDAC6 expression in neurons was also increased. Moreover, HDAC6-positive cells had elevated apoptosis. Tubostatin A (Tub A)-induced decrease in the activity of HDAC6 restored acetylation of α-tubulin during the early poststroke recovery period and reduced apoptosis of nerve cells thus protecting the brain tissue. Selective inhibition of HDAC6 elevated expression of growth-associated protein-43 (GAP43), which remained high up to 14 days after stroke and promoted axogenesis and recovery from the PTI-induced neurological deficit. Selective HDAC6 inhibitor Tub A markedly reduced neuronal death and increased acetylation of α-tubulin and the level of GAP43. Thus, HDAC6 inhibition could be a promising strategy for modulation of brain recovery as it can increase the intensity and reduce the duration of reparation processes in the brain after stroke.
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Affiliation(s)
- Svetlana Demyanenko
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Elena Berezhnaya
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Maria Neginskaya
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Stanislav Rodkin
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Valentina Dzreyan
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Maria Pitinova
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
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Uzdensky A, Berezhnaya E, Khaitin A, Kovaleva V, Komandirov M, Neginskaya M, Rudkovskii M, Sharifulina S. Protection of the Crayfish Mechanoreceptor Neuron and Glial Cells from Photooxidative Injury by Modulators of Diverse Signal Transduction Pathways. Mol Neurobiol 2016; 52:811-25. [PMID: 26063591 DOI: 10.1007/s12035-015-9237-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Oxidative stress is the reason of diverse neuropathological processes. Photodynamic therapy (PDT), an effective inducer of oxidative stress, is used for cancer treatment, including brain tumors. We studied the role of various signaling pathways in photodynamic injury and protection of single neurons and satellite glial cells in the isolated crayfish mechanoreceptor. It was photosensitized with alumophthalocyanine Photosens in the presence of inhibitors or activators of various signaling proteins. PDT eliminated neuronal activity and killed neurons and glial cells. Inhibitory analysis showed the involvement of protein kinases Akt, glycogen synthase kinase-3β (GSK-3β), mammalian target of rapamycin (mTOR), mitogen-activated protein kinase kinases 1 and 2 (MEK1/2), calmodulin, calmodulin-dependent kinase II (CaMKII), adenylate cyclase, and nuclear factor NF-κB in PDT-induced necrosis of neurons. Nitric oxide (NO) and glial cell-derived neurotrophic factor (GDNF) reduced neuronal necrosis. In glial cells, protein kinases Akt, calmodulin, and CaMKII; protein kinases C and G, adenylate cyclase, and p38; and nuclear transcription factor NF-κB also mediated PDT-induced necrosis. In contrast, NO and neurotrophic factors nerve growth factor (NGF) and GDNF demonstrated anti-necrotic activity. Phospholipase Cγ, protein kinase C, GSK-3β, mTOR, NF-κB, mitochondrial permeability transition pores, and NO synthase mediated PDT-induced apoptosis of glial cells, whereas protein kinase A, tyrosine phosphatases, and neurotrophic factors NGF, GDNF, and neurturin were involved in protecting glial cells from photoinduced apoptosis. Signaling pathways that control cell survival and death differed in neurons and glia. Inhibitors or activators of some signaling pathways may be used as potential protectors of neurons and glia from photooxidative stress and following death.
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Affiliation(s)
- Anatoly Uzdensky
- Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky Ave., Rostov-on-Don, 344090, Russia,
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Photodynamic effect of Radachlorin on nerve and glial cells. Photodiagnosis Photodyn Ther 2014; 11:357-64. [DOI: 10.1016/j.pdpdt.2014.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 06/04/2014] [Accepted: 06/09/2014] [Indexed: 11/21/2022]
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Uzdensky AB, Rudkovskii MV, Fedorenko GM, Berezhnaya EV, Ischenko IA, Kovaleva VD, Komandirov MA, Neginskaya MA, Khaitin AM, Sharifulina SA. Responses of crayfish neurons and glial cells to photodynamic impact: Intracellular signaling, ultrastructural changes, and neuroglial interactions. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2014. [DOI: 10.1134/s1990747813050218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sharifulina SA, Komandirov MA, Uzdensky AB. Epigenetic regulation of death of crayfish glial cells but not neurons induced by photodynamic impact. Brain Res Bull 2014; 102:15-21. [PMID: 24502940 DOI: 10.1016/j.brainresbull.2014.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 01/19/2014] [Accepted: 01/22/2014] [Indexed: 12/30/2022]
Abstract
Epigenetic processes are involved in regulation of cell functions and survival, but their role in responses of neurons and glial cells to oxidative injury is insufficiently explored. Here, we studied the role of DNA methylation and histone deacetylation in reactions of neurons and surrounding glial cells to photodynamic treatment that induces oxidative stress and cell death. Isolated crayfish stretch receptor consisting of a single mechanoreceptor neuron surrounded by glial cells was photosensitized with aluminum phthalocyanine Photosens that induced neuron inactivation, necrosis of the neuron and glia, and glial apoptosis. Inhibitors of DNA methylation 5-azacytidine and 5-aza-2'-deoxycytidine (decitabine) reduced the level of PDT-induced necrosis of glial cells but not neurons by 1.3 and 2.0 times, respectively, and did not significantly influence apoptosis of glial cells. Histone deacetylase inhibitors valproic acid and trichostatin A inhibited PDT-induced both necrosis and apoptosis of satellite glial cells but not neurons by 1.6-2.7 times. Thus, in the crayfish stretch receptor DNA methylation and histone deacetylation are involved in epigenetic control of glial but not neuronal necrosis. Histone deacetylation also participates in glial apoptosis.
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Affiliation(s)
- S A Sharifulina
- A.B. Kogan Research Institute for Neurocybernetics, Southern Federal University, Rostov-on-Don 344090, Russia
| | - M A Komandirov
- Department of Biophysics and Biocybernetics, Southern Federal University, Rostov-on-Don 344090, Russia
| | - A B Uzdensky
- A.B. Kogan Research Institute for Neurocybernetics, Southern Federal University, Rostov-on-Don 344090, Russia; Department of Biophysics and Biocybernetics, Southern Federal University, Rostov-on-Don 344090, Russia.
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Kovaleva V, Berezhnaya E, Komandirov M, Rudkovskii M, Uzdensky A. Involvement of nitric oxide in photodynamic injury of neurons and glial cells. Nitric Oxide 2013; 29:46-52. [DOI: 10.1016/j.niox.2012.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 12/06/2012] [Accepted: 12/13/2012] [Indexed: 11/27/2022]
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Protection Effect of GDNF and Neurturin on Photosensitized Crayfish Neurons and Glial Cells. J Mol Neurosci 2012; 49:480-90. [DOI: 10.1007/s12031-012-9858-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 07/12/2012] [Indexed: 10/28/2022]
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On the role of phosphatidylinositol 3-kinase, protein kinase b/Akt, and glycogen synthase kinase-3β in photodynamic injury of crayfish neurons and glial cells. J Mol Neurosci 2011; 45:229-35. [PMID: 21318403 DOI: 10.1007/s12031-011-9499-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Accepted: 01/25/2011] [Indexed: 02/06/2023]
Abstract
Photodynamic treatment that causes intense oxidative stress and cell death is currently used in neurooncology. However, along with tumor cells, it may damage healthy neurons and glia. To study the involvement of signaling processes in photodynamic injury or protection of neurons and glia, we used crayfish mechanoreceptor consisting of a single neuron surrounded by glial cells. It was photosensitized with alumophthalocyanine Photosens. Application of specific inhibitors showed that phosphatidylinositol 3-kinase did not participate in photoinduced death of neurons and glia. Akt was involved in photoinduced necrosis but not in apoptosis of neurons and glia. Glycogen synthase kinase-3β participated in photoinduced apoptosis of glial cells and in necrosis of neurons. Therefore, phosphatidylinositol 3-kinase/protein kinase Akt/glycogen synthase kinase-3β pathway was not involved as a whole in photodynamic injury of crayfish neurons and glia but its components, Akt and glycogen synthase kinase-3β, independently and cell specifically regulated death of neurons and glial cells. According to these data, necrosis in this system was a controlled but not a non-regulated cell death mode. The obtained results may be used for the search of pharmacological agents selectively modulating death and survival of normal neurons and glial cells during photodynamic therapy of brain tumors.
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Fedorenko G, Fedorenko Y, Fedorenko A, Uzdensky A. Dynamics of ultrastructural alterations in photosensitized crayfish glial and neuronal cells: Structures involved in transport processes and neuroglial interactions. J Neurosci Res 2010; 89:341-51. [DOI: 10.1002/jnr.22560] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Revised: 10/23/2010] [Accepted: 10/23/2010] [Indexed: 12/17/2022]
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Uzdensky AB. Controlled Necrosis. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2010. [DOI: 10.1134/s1990747810010022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Uzdensky AB, Lobanov AV. Elevated activity of the crayfish stretch receptor neuron increases resistance of surrounding glial cells to apoptosis induced by photodynamic treatment. Neurosci Lett 2010; 468:89-92. [PMID: 19879336 DOI: 10.1016/j.neulet.2009.10.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Revised: 10/12/2009] [Accepted: 10/22/2009] [Indexed: 10/20/2022]
Abstract
Neuroglial interaction is very important for functioning and survival of nerve and glial cells. In the present work, we studied the influence of the intense neuronal activity on survival of the isolated crayfish stretch receptor neuron and surrounding glial cells subjected to photodynamic treatment, which induces intense oxidative stress. In the experimental group, neurons were stimulated by multiple extensions of the receptor muscle for 1h so that the firing rate did not fall below 10-15 Hz, whereas in the control group, the receptor muscles were relaxed and neurons were silent. After stimulation, the preparations were photosensitized with alumophthalocyanine Photosens and irradiated by 670 nm laser diode. The isolated stretch receptors were stained with propidium iodide and Hoechst 33342, which reveal the nuclei of the necrotic and the apoptotic cells, respectively. The level of apoptosis of photosensitized glial cells was significantly lower in the experimental group compared to the resting control. Necrosis of neurons and glial cells was not significantly influenced. Therefore, elevated neuronal activity increased the resistance of the surrounding glial cells to photoinduced apoptosis. This could be attributed to the depletion of the energetic resources, which are transferred from glia into the neuron to support its firing, or to the neurotrophic neuron-to-glia signaling.
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Protection of crayfish glial cells but not neurons from photodynamic injury by nerve growth factor. J Mol Neurosci 2009; 39:308-19. [PMID: 19381880 DOI: 10.1007/s12031-009-9199-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 03/29/2009] [Indexed: 10/20/2022]
Abstract
Photodynamic treatment that causes intense oxidative stress and cell death is currently used in neurooncology. However, along with tumor cells, it may damage healthy neurons and glia. In order to study photodynamic effect on normal nerve and glial cells, we used crayfish stretch receptor, a simple system consisting of only two identified sensory neurons surrounded by glial cells. Photodynamic treatment induced firing abolition and necrosis of neurons as well as necrosis and apoptosis of glial cells. Nerve growth factor but not brain-derived neurotrophic factor or epidermal growth factor protected glial cells but not neurons from photoinduced necrosis and apoptosis. Inhibitors of tyrosine kinases or protein kinase JNK eliminated anti-apoptotic effect of nerve growth factor in photosensitized glial cells but not neurons. Therefore, these signaling proteins were involved in the anti-apoptotic activity of nerve growth factor. These data indicate the possible presence of receptors capable of recognizing murine nerve growth factor in crayfish glial cells. Thus, intercellular signaling mediated by nerve-growth-factor-like neurotrophin, receptor tyrosine kinase, and JNK may be involved in crayfish glia protection from apoptosis induced by photodynamic treatment.
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Uzdenskii AB, Kolosov MS, Lobanov AV. Neuron and gliocyte death induced by photodynamic treatment: signal processes and neuron-glial interactions. ACTA ACUST UNITED AC 2008; 38:727-35. [PMID: 18720010 DOI: 10.1007/s11055-008-9042-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2006] [Revised: 04/21/2007] [Indexed: 12/18/2022]
Abstract
The mechanisms of photodynamic (PD) damage to neurons and gliocytes are discussed. The spike reactions of neurons are described, with stimulation at high concentrations of photosensitizer and inhibition at low concentrations, accompanying necrosis. Glial cells developed both necrosis and apoptosis. Local laser inactivation of neurons increased light-induced apoptosis of gliocytes, i.e., neurons maintained gliocyte survival. Inter-and intracellular signaling plays an important role in the photolesioning of these cells. Studies using inhibitors and activators of signal proteins demonstrated the involvement of the Ca(2+)-dependent, adenylate cyclase, and tyrosine kinase pathways in the responses of neurons and gliocytes to PD treatment. Pharmacological modulation may alter the selectivity of PD neuron and gliocyte damage and the efficacy of PD treatment.
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Affiliation(s)
- A B Uzdenskii
- A. B. Kogan institute of Neurocybernetics, Southern Federal University, Rostov-on-Don, Russia.
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Fedorenko G, Uzdensky A. Dynamics of ultrastructural changes in the isolated crayfish mechanoreceptor neuron under photodynamic impact. J Neurosci Res 2008; 86:1409-16. [DOI: 10.1002/jnr.21587] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Uzdensky A, Lobanov A, Bibov M, Petin Y. Involvement of Ca2+- and cyclic adenosine monophosphate-mediated signaling pathways in photodynamic injury of isolated crayfish neuron and satellite glial cells. J Neurosci Res 2007; 85:860-70. [PMID: 17265456 DOI: 10.1002/jnr.21190] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
To investigate the mechanisms of oxidative injury of neurons and glia, we studied the photodynamic effect on isolated stretch receptor that consists of only two sensory neurons enwrapped by satellite glial cells. Photodynamic therapy (PDT), a potent inducer of oxidative stress, is a prospective method for destruction of brain tumors. PDT induced functional inactivation and necrosis of neurons, necrosis, apoptosis, and proliferation of glial cells. The roles of calmodulin, calmodulin-dependent kinase II, phospholipase C, protein kinases A and C, and phosphodiesterase in these processes were studied by using their inhibitors: fluphenazine, KN-93, D-609, H89, staurosporine, and papaverine, respectively. PDT-induced firing abolishment was enhanced by H89 or papaverine, whereas staurosporine acted oppositely. Fluphenazine or KN-93 reduced necrosis of neurons and glial cells. H89 enhanced necrosis of neurons, whereas staurosporine enhanced necrosis of glial cells. Inhibition of protein kinases A and C enhanced PDT-induced glial apoptosis. Photodynamic gliosis was prevented by KN-93 or staurosporine. These data indicate possible involvement of calmodulin and calmodulin-dependent kinase II in photoinduced necrosis of neurons and glia. Protein kinase C could protect glial cells from necrosis and apoptosis and participate in photoinduced gliosis and loss of neuronal activity. Protein kinase A maintained neuronal firing and protected neurons from photoinduced necrosis and glial cells from apoptosis. Phosphodiesterase reduced necrosis of photosensitized neurons and glia. Thus, Ca(2+)- and cAMP-mediated signaling pathways were involved in photooxidative injury of neurons and glia. Their pharmacological modulation may differently change the efficacy of photodynamic injury of neurons and glial cells.
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Affiliation(s)
- Anatoly Uzdensky
- Institute of Neurocybernetics, Rostov State University, Rostov-on-Don, Russia.
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Kolosov M, Uzdensky A. Crayfish mechanoreceptor neuron prevents photoinduced apoptosis of satellite glial cells. Brain Res Bull 2006; 69:495-500. [PMID: 16647578 DOI: 10.1016/j.brainresbull.2006.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2005] [Revised: 02/20/2006] [Accepted: 02/20/2006] [Indexed: 10/24/2022]
Abstract
Interactions between neurons and glia play a key role in the development, functioning and survival of the nervous system. However, the influence of neurons on glial cells has received less attention than the role of glia in supporting neural functions. We here investigated the role of isolated crayfish stretch receptor neuron in the death of satellite glial cells under photodynamic impact. After staining with aluminum phthalocyanine photosens, the neuronal cell body was locally irradiated with a focused beam of He-Ne (633 nm, 200 W/cm2) or semiconductor laser (650 nm, 50 W/cm2). This rapidly abolished neuronal activity. The whole preparation was then subjected to total laser irradiation with lower intensity (633 nm, 0.3 W/cm2), which induced death of glial cells. Double staining of the preparation with propidium iodide and Hoechst 33342 in the following 6-7h allowed the visualization of necrotic, apoptotic and alive cells. Previous neuron inactivation with the focused laser beam was found to increase photodynamically-induced apoptosis but not necrosis of satellite glial cells enwrapping the axon. Therefore, the intact neuronal cell body protected satellite glial cells against photoinduced apoptosis. Altogether the data indicate that mechanoreceptor neurons release some signaling molecules involved in the prevention of glial apoptosis. This may provide integrity of the stretch receptor organ and its resistance to injurious factors.
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Affiliation(s)
- Mikhail Kolosov
- Institute for Neurocybernetics, Rostov State University, Rostov-on-Don 344090, Russia
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Lobanov AV, Uzdensky AB. PDT-induced death of sensory neurons and glial cells in the isolated crayfish stretch receptor after proteolytic treatment. J Neurosci Res 2006; 82:866-74. [PMID: 16302186 DOI: 10.1002/jnr.20687] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
To study the involvement of neuroglial interactions in photodynamic damage of crayfish stretch receptor, which consists of only two neurons surrounded by satellite glial cells (SGCs), we attempted to proteolytically uncouple neurons and glia and then compare the responses of these cells to photosensitization when intercellular communications were intact or impaired. After incubation of isolated stretch receptors with pronase or collagenase they were photosensitized with Photosens, a mixture of sulfonated alumophthalocyanines AlPcS(n) (n = 2, 3, and 4; mean n = 3.1). In the next 6 hr the preparations were double fluorochromed with propidium iodide and Hoechst-33342 to visualize necrotic and apoptotic cells. Proteolytic treatment shortened bioelectric neuron response and precipitated its functional inactivation; however, it did not significantly impair neuron morphology and did not induce its necrosis either in the darkness or under photosensitization. Photodynamic treatment induced necrosis of neurons and SGC and apoptosis of glial cells. Pronase but not collagenase increased percent of necrotic and apoptotic SGCs in the darkness and thus reduced the number of glial cells around the neuron; however, both pronase and collagenase prevented photodynamically induced apoptosis of glial cells. The involvement of neuron-to-glia signaling interactions in this phenomenon is suggested.
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Affiliation(s)
- A V Lobanov
- Institute of Neurocybernetics, Rostov State University, Rostov-on-Don, Russia
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Dergacheva OY, Kolosov MS, Uzdensky AB. Photosensibilization with Endogenous Riboflavin of the Isolated Mechanoreceptor Neuron and Satellite Glial Cells of the Crayfish Astacus leptodactilus. J EVOL BIOCHEM PHYS+ 2005. [DOI: 10.1007/s10893-005-0066-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Uzdensky AB, Dergacheva OY, Zhavoronkova AA, Reshetnikov AV, Ponomarev GV. Photodynamic effect of novel chlorin e6 derivatives on a single nerve cell. Life Sci 2004; 74:2185-97. [PMID: 14969720 DOI: 10.1016/j.lfs.2003.09.053] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2003] [Accepted: 09/24/2003] [Indexed: 10/26/2022]
Abstract
Chlorin e(6) and its derivatives are promising sensitizers for photodynamic therapy (PDT). In order to compare the photodynamic effects of 8 novel derivatives of chlorin e(6) and to explore some mechanisms of their effects at the cellular level, we studied PDT-induced changes in bioelectric activity of crayfish mechanoreceptor neuron that was used as a sensitive experimental model. Neurons were insensitive to red laser irradiation (632.8 nm; 0.3 W/cm(2)) or to photosensitizers alone, but changed firing rate and died under the photodynamic effect of nanomolar concentrations of sensitizers. The dynamics of neuron responses depended on photosensitizer type and concentration. The dependence of neuron lifetime on photosensitizer concentration allowed comparing efficiencies of different photosensitizers. Radachlorin was the most potent photosensitizer comparable with mTHPC. High photodynamic efficiency of some chlorin e(6) derivatives was related to weak dependence of neuron lifetime on sensitizer concentration, indicating to the initiation of 2-3 secondary processes such as free radical membrane damage by one absorbed photon. Photodynamic efficiency of sensitizers depended on amphiphilicity influencing their intracellular localization.
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Affiliation(s)
- A B Uzdensky
- Department of Biophysics, Rostov State University, 194/1, Stachky ave., NIINK, Rostov-on-Don, 344090, Russia.
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Uzdensky A, Kolosov M, Bragin D, Dergacheva O, Vanzha O, Oparina L. Involvement of adenylate cyclase and tyrosine kinase signaling pathways in response of crayfish stretch receptor neuron and satellite glia cell to photodynamic treatment. Glia 2004; 49:339-48. [PMID: 15494984 DOI: 10.1002/glia.20122] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neuroglial interactions are most profound during development or damage of nerve tissue. We studied the responses of crayfish stretch receptor neurons (SRN) and satellite glial cells to photosensitization with sulfonated aluminum phthalocyanine Photosens. Although Photosens was localized mainly in the glial envelope, neurons were very sensitive to photodynamic treatment. Photosensitization gradually inhibited and then abolished neuron activity. Neuronal and glial nuclei shrank. Some neurons and glial cells lost the integrity of the plasma membrane and died through necrosis after the treatment. The nuclei of other glial cells but not neurons become fragmented, indicating apoptosis. The number of glial nuclei around neuron soma increased, probably indicating proliferation for enhanced neuron protection. Adenylate cyclase (AC) inhibition by MDL-12330A, or tyrosine kinase (TK) inhibition by genistein, shortened neuron lifetime, whereas AC activation by forskolin or protein tyrosine phosphatases (PTP) inhibition by sodium orthovanadate prolonged neuronal activity. Therefore, cAMP and phosphotyrosines produced by AC and TK, respectively, protected SRN against photoinactivation. AC inhibition reduced photodamage of the plasma membrane and subsequent necrosis in neuronal and glial cells. AC activation prevented apoptosis in photosensitized glial cells and stimulated glial proliferation. TK inhibition protected neurons but not glia against photoinduced membrane permeabilization and subsequent necrosis whereas PTP inhibition more strongly protected glial cells. Therefore, both signaling pathways involving cAMP and phosphotyrosines might contribute to the maintenance of neuronal activity and the integrity of the neuronal and glial plasma membranes. Adenylate cyclase but not phosphotyrosine signaling pathways modulated glial apoptosis and proliferation under photooxidative stress.
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Affiliation(s)
- Anatoly Uzdensky
- Department of Biophysics and Biocybernetics, Rostov State University, 194/1 Stachky ave., Institute of Neurocybernetics, Rostov-on-Don 344090, Russia.
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Uzdensky AB, Bragin DE, Kolosov MS, Kubin A, Loew HG, Moan J. Photodynamic effect of hypericin and a water-soluble derivative on isolated crayfish neuron and surrounding glial cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2003; 72:27-33. [PMID: 14644563 DOI: 10.1016/j.jphotobiol.2003.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Hypericin (Hyp) has been proposed as a fluorochrome for fluorescence diagnostics and as a photosensitizer for photodynamic therapy of cancer. However, its insolubility in water is a serious drawback. A novel water-soluble hypericin derivative (Hyp-S) has been constructed, using polyvinylpyrrolidone as a carrier. We used the crayfish stretch receptor, consisting of receptor neuron and satellite glial cells, for comparison of the photodynamic effects of Hyp and Hyp-S. Hyp-S was more toxic in the dark than Hyp and inactivated the neurons at concentrations exceeding 4 microM while Hyp was toxic to the neurons only at the concentrations larger than 20 microM. Electrophysiological investigations revealed polyphasic neuron responses to photosensitization with Hyp as well as with Hyp-S (1 microM concentration, 30 min incubation; irradiation with filtered light from a lamp with an emission maximum near 600 nm and an intensity of 0.2 W/cm2). In the concentration range 1-4 microM Hyp-S was more phototoxic than Hyp. Fluorescence microscopy showed that both sensitizers were predominately localized in the glial envelope surrounding the neuron. A minor fraction of hypericin was found in the neuron perinuclear area rich in cytoplasm organelles. This suggests the potential application of Hyp and Hyp-S for visualization and selective photodynamic treatment of malignant gliomas.
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Bragin DE, Kolosov MS, Uzdensky AB. Photodynamic inactivation of isolated crayfish neuron requires protein kinase C, PI 3-kinase and Ca2+. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2003; 70:99-105. [PMID: 12849700 DOI: 10.1016/s1011-1344(03)00071-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Involvement of some signalling pathways in response to photodynamic therapy (PDT) of sulfonated aluminium phthalocyanine Photosens has been studied in isolated nerve cell. Neurone photosensitisation with 10(-7) M Photosens gradually inhibited firing and irreversibly abolished neuronal activity. Activation of protein kinase C (PKC) by phorbol ester 12-O-tetradecanoylphorbol 13-acetate (TPA) precipitated PDT-induced abolition of neurone activity and caused nucleus swelling and impairment of the nucleus border. Elevation of cytosolic Ca(2+) concentration by ionomycin or thapsigargin also reduced neurone lifetime. In contrast, the PKC inhibitors staurosporine, hypericin or chelerythrine as well as the phosphatidylinositol 3-kinase (PI 3-kinase) inhibitors wortmannin or LY294002 increased neurone lifetime. These results showed that PKC, PI 3-kinase and Ca(2+) are involved in PDT-induced neurone inactivation and following death.
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Affiliation(s)
- Denis E Bragin
- Department of Biophysics, Institute for Neurocybernetics, Rostov State University, 194/1 Stachky ave., Rostov-on-Don, 344090, Russia
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