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Falanga AP, Massaro M, Borbone N, Notarbartolo M, Piccialli G, Liotta LF, Sanchez-Espejo R, Viseras Iborra C, Raymo FM, Oliviero G, Riela S. Carrier capability of halloysite nanotubes for the intracellular delivery of antisense PNA targeting mRNA of neuroglobin gene. J Colloid Interface Sci 2024; 663:9-20. [PMID: 38387188 DOI: 10.1016/j.jcis.2024.02.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/28/2023] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Peptide nucleic acid (PNA) is a DNA mimic that shows good stability against nucleases and proteases, forming strongly recognized complementary strands of DNA and RNA. However, due to its feeble ability to cross the cellular membrane, PNA activity and its targeting gene action is limited. Halloysite nanotubes (HNTs) are a natural and low-cost aluminosilicate clay. Because of their peculiar ability to cross cellular membrane, HNTs represent a valuable candidate for delivering genetic materials into cells. Herein, two differently charged 12-mer PNAs capable of recognizing as molecular target a 12-mer DNA molecule mimicking a purine-rich tract of neuroglobin were synthetized and loaded onto HNTs by electrostatic attraction interactions. After characterization, the kinetic release was also assessed in media mimicking physiological conditions. Resonance light scattering measurements assessed their ability to bind complementary single-stranded DNA. Furthermore, their intracellular delivery was assessed by confocal laser scanning microscopy on living MCF-7 cells incubated with fluorescence isothiocyanate (FITC)-PNA and HNTs labeled with a probe. The nanomaterials were found to cross cellular membrane and cell nuclei efficiently. Finally, it is worth mentioning that the HNTs/PNA can reduce the level of neuroglobin gene expression, as shown by reverse transcription-quantitative polymerase chain reaction and western blotting analysis.
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Affiliation(s)
- Andrea P Falanga
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Monica Notarbartolo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, Palermo 90146, Italy
| | - Rita Sanchez-Espejo
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain
| | - Cesar Viseras Iborra
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain; Andalusian Institute of Earth Sciences, CSIC-UGR, 18100 Armilla, Granada, Spain
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables 33146-0431, FL, United States
| | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Via Sergio Pansini 5, 80131 Napoli, Italy
| | - Serena Riela
- Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy.
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Semenova MA, Chertkova RV, Kirpichnikov MP, Dolgikh DA. Molecular Interactions between Neuroglobin and Cytochrome c: Possible Mechanisms of Antiapoptotic Defense in Neuronal Cells. Biomolecules 2023; 13:1233. [PMID: 37627298 PMCID: PMC10452090 DOI: 10.3390/biom13081233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/06/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Neuroglobin, which is a heme protein from the globin family that is predominantly expressed in nervous tissue, can promote a neuronal survivor. However, the molecular mechanisms underlying the neuroprotective function of Ngb remain poorly understood to this day. The interactions between neuroglobin and mitochondrial cytochrome c may serve as at least one of the mechanisms of neuroglobin-mediated neuroprotection. Interestingly, neuroglobin and cytochrome c possibly can interact with or without electron transfer both in the cytoplasm and within the mitochondria. This review provides a general picture of molecular interactions between neuroglobin and cytochrome c based on the recent experimental and computational work on neuroglobin and cytochrome c interactions.
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Affiliation(s)
- Marina A. Semenova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho–Maklaya St. 16/10, 117997 Moscow, Russia
| | - Rita V. Chertkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho–Maklaya St. 16/10, 117997 Moscow, Russia
| | - Mikhail P. Kirpichnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho–Maklaya St. 16/10, 117997 Moscow, Russia
- Biology Department, Lomonosov Moscow State University, Leninskie Gory, 119899 Moscow, Russia
| | - Dmitry A. Dolgikh
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho–Maklaya St. 16/10, 117997 Moscow, Russia
- Biology Department, Lomonosov Moscow State University, Leninskie Gory, 119899 Moscow, Russia
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Gorabi AM, Aslani S, Barreto GE, Báez-Jurado E, Kiaie N, Jamialahmadi T, Sahebkar A. The potential of mitochondrial modulation by neuroglobin in treatment of neurological disorders. Free Radic Biol Med 2021; 162:471-477. [PMID: 33166649 DOI: 10.1016/j.freeradbiomed.2020.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/20/2020] [Accepted: 11/02/2020] [Indexed: 01/18/2023]
Abstract
Neuroglobin is the third member of the globin family to be identified in 2000 in neurons of both human and mouse nervous systems. Neuroglobin is an oxygen-binding globin found in neurons within the central nervous system as well as in peripheral neurons, that produces a protective effect against hypoxic/ischemic damage induced by promoting oxygen availability within the mitochondria. Numerous investigations have demonstrated that impaired neuroglobin functioning is implicated in the pathogenesis of multiple neurodegenerative disorders. Several in vitro and animal studies have reported the potential of neuroglobin upregulation in improving the neuroprotection through modulation of mitochondrial functions, such as ATP production, clearing reactive oxygen species (ROS), promoting the dynamics of mitochondria, and controlling apoptosis. Neuroglobin acts as a stress-inducible globin, which has been associated hypoxic/ischemic insults where it acts to protect the heart and brain, providing a wide range of applicability in the treatment of human disorders. This review article discusses normal physiological functions of neuroglobin in mitochondria-associated pathways, as well as outlining how dysregulation of neuroglobin is associated with the pathogenesis of neurodegenerative disorders.
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Affiliation(s)
- Armita Mahdavi Gorabi
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland; Health Research Institute, University of Limerick, Limerick, Ireland
| | - Eliana Báez-Jurado
- Departamento de Química, Facultad de Ciencias, Universidad Antonio Nariño, Bogotá D.C., Colombia
| | - Nasim Kiaie
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Tannaz Jamialahmadi
- Department of Food Science and Technology, Quchan Branch, Islamic Azad University, Quchan, Iran; Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland; Halal Research Center of IRI, FDA, Tehran, Iran.
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Bai Y, Liu S, Wang X, Du X, Ji G, Zhang S. Identification of neuroglobin as a novel player in anti-bacterial responses in amphioxus. Dev Comp Immunol 2017; 77:157-165. [PMID: 28803930 DOI: 10.1016/j.dci.2017.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 08/07/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
Theoretical considerations support various functions of neuroglobin (Ngb), but further studies are required for full characterization of these functions. In this study, we identified the presence of a single Ngb gene, BjNgb, in the amphioxus Branchiostoma japonicum. BjNgb was expressed in various tissues including the notochord, gonads (ovary and testis) and gill, and up-regulated significantly in response to the challenge with LPS and LTA, suggesting involvement in immune response of amphioxus against bacterial infection. In accord, we demonstrated for the first time that recombinant BjNgb (rBjNgb) not only interacted with the Gram-positive and negative bacteria as well as their conserved surface components LPS and LTA, but also enhanced the phagocytosis of bacteria by macrophages. Collectively, these data suggest that BjNgb is a novel player in amphioxus, via functioning as a pattern recognition molecule and an opsonin.
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Affiliation(s)
- Yu Bai
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Department of Marine Biology, Ocean University of China, Qingdao 266003, China
| | - Shousheng Liu
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
| | - Xia Wang
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Department of Marine Biology, Ocean University of China, Qingdao 266003, China
| | - Xiaoyuan Du
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
| | - Guangdong Ji
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Department of Marine Biology, Ocean University of China, Qingdao 266003, China.
| | - Shicui Zhang
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Department of Marine Biology, Ocean University of China, Qingdao 266003, China.
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da Conceição RR, de Souza JS, de Oliveira KC, de Barros Maciel RM, Romano MA, Romano RM, da Silva MRD, Chiamolera MI, Giannocco G. Anatomical specificity of the brain in the modulation of Neuroglobin and Cytoglobin genes after chronic bisphenol a exposure. Metab Brain Dis 2017; 32:1843-1851. [PMID: 28721559 DOI: 10.1007/s11011-017-0066-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 07/06/2017] [Indexed: 01/23/2023]
Abstract
The aim of this study was to investigate the influence of Bisphenol A (BPA) exposure on Neuroglobin (Ngb) and Cytoglobin (Cygb) as well as oxidative stress gene expression in the cerebellum, hippocampus, hypothalamus and cortex. Male Wistar rats were randomly divided into 3 groups: Control and two groups receiving 2 different daily BPA dosages, 5 or 25 mg/kg from postnatal day 50 (PND50) through PND90 and they were euthanized at PND105. In the cortex, we found an increase in Ngb gene expression and also in superoxide dismutase 1 and Catalase (Cat). In the cerebellum, we found an increase in Ngb and Cat, in the hypothalamus, there was a decrease in Cygb and an increase in glutathione peroxidase and Cat and in hypoxia-inducible factor 1 alpha (Hif1α) at the low dosage and a decrease in Hif1α at the high BPA dosage. Finally, in the hippocampus, we observed a decrease in Ngb and Cygb and an increase in Hif1α. In summary, BPA promotes the modulation of both Ngb and Cygb, but such changes occur by different mechanisms depending on the exposure dose and anatomical area.
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Affiliation(s)
- Rodrigo Rodrigues da Conceição
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Janaina Sena de Souza
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Kelen Carneiro de Oliveira
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Rui Monteiro de Barros Maciel
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Marco Aurélio Romano
- Department of Pharmacy, State University of Centro-Oeste, Curitiba, Parana, Brazil
| | - Renata Marino Romano
- Department of Pharmacy, State University of Centro-Oeste, Curitiba, Parana, Brazil
| | - Magnus Régios Dias da Silva
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Maria Izabel Chiamolera
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Gisele Giannocco
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil.
- Department of Biological Sciences, Universidade Federal de São Paulo, Diadema, SP, Brazil.
- Laboratório de Endocriologia Molecular e Translacional, Departamento de Medicina, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil.
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Cardinale A, Fusco FR, Paldino E, Giampà C, Marino M, Nuzzo MT, D'Angelo V, Laurenti D, Straccia G, Fasano D, Sarnataro D, Squillaro T, Paladino S, Melone MAB. Localization of neuroglobin in the brain of R6/2 mouse model of Huntington's disease. Neurol Sci 2017; 39:275-285. [PMID: 29101592 DOI: 10.1007/s10072-017-3168-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/24/2017] [Indexed: 12/17/2022]
Abstract
Neuroglobin (Ngb) is expressed in the central and peripheral nervous system, cerebrospinal fluid, retina, and endocrine tissues where it is involved in binding O2 and other gasotransmitters. Several studies have highlighted its endogenous neuroprotective function. Huntington's disease (HD), a dominant hereditary disease, is characterized by the gradual loss of neurons in discrete areas of the central nervous system. We analyzed the expression of Ngb in the brain tissue of a mouse model of HD, in order to define the role of Ngb with respect to individual cell type vulnerability in HD and to gender and age of mice. Our results showed different expressions of Ngb among neurons of a specific region and between different brain regions. We evidenced a decreased intensity of Ngb at 13 weeks of age, compared to 7 weeks of age. The double immunofluorescence and fluorescence resonance energy transfer (FRET) experiments showed that the co-localization between Ngb and huntingtin at the subcellular level was not close enough to account for a direct interaction. We also observed a different expression of Ngb in the striatum, depending on the sex and age of animals. These findings provide the first experimental evidence for an adaptive response of Ngb in HD, suggesting that Ngb may exert neuroprotective effects in HD beyond its role in reducing sensitivity to oxidative stress.
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Affiliation(s)
- A Cardinale
- Department of Science, Roma Tre University, Rome, Italy
- Santa Lucia Foundation IRCCS, Rome, Italy
| | - F R Fusco
- Santa Lucia Foundation IRCCS, Rome, Italy
| | - E Paldino
- Santa Lucia Foundation IRCCS, Rome, Italy
| | - C Giampà
- Santa Lucia Foundation IRCCS, Rome, Italy
- Catholic University of Rome "Università Cattolica del Sacro Cuore", Rome, Italy
| | - M Marino
- Department of Science, Roma Tre University, Rome, Italy
| | - M T Nuzzo
- Department of Science, Roma Tre University, Rome, Italy
| | - V D'Angelo
- Department of Neuroscience, University of Rome Tor Vergata, Rome, Italy
| | - D Laurenti
- Santa Lucia Foundation IRCCS, Rome, Italy
| | - G Straccia
- 2nd Division of Neurology and Center for Rare Diseases, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - D Fasano
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
| | - D Sarnataro
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
- CEINGE Advanced Biotechnologies, Naples, Italy
| | - T Squillaro
- 2nd Division of Neurology and Center for Rare Diseases, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
- InterUniversity Center for Research in Neurosciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - S Paladino
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
- CEINGE Advanced Biotechnologies, Naples, Italy
| | - Mariarosa A B Melone
- 2nd Division of Neurology and Center for Rare Diseases, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, University of Campania Luigi Vanvitelli, Naples, Italy.
- InterUniversity Center for Research in Neurosciences, University of Campania Luigi Vanvitelli, Naples, Italy.
- Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, USA.
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Guo YC, Song XK, Xu YF, Ma JB, Zhang JJ, Han PJ. The expression and mechanism of BDNF and NGB in perihematomal tissue in rats with intracerebral hemorrhage. Eur Rev Med Pharmacol Sci 2017; 21:3452-3458. [PMID: 28829495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To analyze how changes in the levels of brain-derived neurotrophic factor (BDNF) and neuroglobin (NGB) affect learning and memory in rats with intracerebral hemorrhage. MATERIALS AND METHODS Thirty male Sprague-Dawley rats were randomly divided into the control group, sham operation group and model group with 10 rats each. The rats in the control group were untreated, while those in the sham operation group were treated with sterile saline instead of type VII collagenase injection in the globus pallidus. The model of cerebral hemorrhage was established according to the methods described by Rosenberg. The expression of perihematomal BDNF mRNA was measured by Real-time quantitative PCR (RT-PCR) for 7 days consecutively. Perihematomal NGB-positive cells were detected by immunohistochemistry. The Morris water maze was used to test the spatial learning and memory of rats. RESULTS Compared with the control group and sham operation group, the expression of BDNF mRNA and number of NGB-positive cells in the model group were significantly higher. Furthermore, the escape latency was significantly prolonged (p < 0.05). The NGB and BDNF mRNA levels and escape latency were positively correlated. The correlation coefficients were as follows: rs (NGB) = 1.1838 (p = 0.008); rs (BDNF) = 0.5948 (p = 0.012). CONCLUSIONS Cerebral hemorrhage significantly inhibited the spatial learning and memory ability of rats. The mechanism may be related to decreased cerebral expression of BDNF and NGB.
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Affiliation(s)
- Y-C Guo
- Department of Neurosurgery, The Second People's Hospital of Liaocheng, Linqing City, Shandong Province, China. lc-hpj @163.com
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Wu M, Chen N, Huang CX, He Y, Zhao YZ, Chen XH, Chen XL, Wang HL. Effect of Low Temperature on Globin Expression, Respiratory Metabolic Enzyme Activities, and Gill Structure of Litopenaeus vannamei. Biochemistry (Mosc) 2017; 82:844-851. [PMID: 28918749 DOI: 10.1134/s0006297917070100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Low temperature frequently influences growth, development, and even survival of aquatic animals. In the present study, physiological and molecular responses to low temperature in Litopenaeus vannamei were investigated. The cDNA sequences of two oxygen-carrying proteins, cytoglobin (Cygb) and neuroglobin (Ngb), were isolated. Protein structure analysis revealed that both proteins share a globin superfamily domain. Real-time PCR analysis indicated that Cygb and Ngb mRNA levels gradually increased during decrease in temperatures from 25 to 15°C and then decreased at 10°C in muscle, brain, stomach, and heart, except for a continuing increase in gills, whereas they showed a different expression trend in the hepatopancreas. Hemocyanin concentration gradually reduced as the temperature decreased. Moreover, the activities of respiratory metabolic enzymes including lactate dehydrogenase (LDH) and succinate dehydrogenase (SDH) were measured, and it was found that LDH activity gradually increased while SDH activity decreased after low-temperature treatment. Finally, damage to gill structure at low temperature was also observed, and this intensified with further decrease in temperature. Taken together, these results show that low temperature has an adverse influence in L. vannamei, which contributes to systematic understanding of the adaptation mechanisms of shrimp at low temperature.
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Affiliation(s)
- Meng Wu
- Ministry of Education, Huazhong Agricultural University, College of Fishery, Key Lab of Freshwater Animal Breeding, Key Lab of Agricultural Animal Genetics, Breeding, and Reproduction, Wuhan, 430070, PR China.
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10
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Tae B, Oliveira KC, Conceição RRD, Valenti VE, de Souza JS, Laureano-Melo R, Sato MA, Maciel RMDB, Giannocco G. Evaluation of globins expression in brain, heart, and lung in rats exposed to side stream cigarette smoke. Environ Toxicol 2017; 32:1252-1261. [PMID: 27441981 DOI: 10.1002/tox.22321] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 07/01/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
The side stream cigarette smoke (SSCS) is a contributing factor in the pathogenesis of cigarette smoking-induced toxicity. Hemoglobin (Hb), myoglobin (Mb), neuroglobin (Ngb), and cytoglobin (Cygb) are globins with different distributions and functions in the tissues and have similar actions by providing O2 (oxygen) for respiratory chain, detoxification of ROS and nitric oxide (NO), and protect tissues against irreversible lesions. We aimed to investigate the effects of SSCS exposure on gene and protein expression of Ngb, Cygb, and Mb in different tissue. The Ngb and Cygb gene and protein expression in the cerebral cortex increased after 1 week of rat exposure to SSCS. In hippocampus, the Ngb gene and protein expression increased after 1 week or more of exposure and no change was observed in Cygb gene and protein expression. In myocardium, Mb and Cygb gene expression increased at 1 and 4 weeks of exposure, while protein expression of both increased at 1, 2, 3, and 4 weeks. In lung, observed an increase in Cygb gene and protein expression after 2, 3, and 4 weeks of exposure. The findings suggest that SSCS modulates Ngb, Cygb, and Mb in central and peripheral tissue © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1252-1261, 2017.
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Affiliation(s)
- Barbara Tae
- Departament of Morphology and Physiology, Faculdade de Medicina do ABC, Santo André, SP, Brazil
| | - Kelen Carneiro Oliveira
- Departament of Morphology and Physiology, Faculdade de Medicina do ABC, Santo André, SP, Brazil
- Departament of Medicine, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | | | | | | | - Monica Akemi Sato
- Departament of Morphology and Physiology, Faculdade de Medicina do ABC, Santo André, SP, Brazil
| | | | - Gisele Giannocco
- Departament of Morphology and Physiology, Faculdade de Medicina do ABC, Santo André, SP, Brazil
- Departament of Medicine, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Department of Biological Sciences, Universidade Federal de São Paulo, Diadema, SP, Brazil
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Wang YJ, Peng QY, Deng SY, Chen CX, Wu L, Huang L, Zhang LN. Hemin protects against oxygen-glucose deprivation-induced apoptosis activation via neuroglobin in SH-SY5Y cells. Neurochem Res 2017; 42:2208-2217. [PMID: 28316021 DOI: 10.1007/s11064-017-2230-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/28/2017] [Accepted: 03/10/2017] [Indexed: 02/07/2023]
Abstract
This study aimed to investigate the mechanism underlying the neuroprotective effect of hemin in oxygen-glucose deprivation (OGD)-treated neurons. OGD-treated SH-SY5Y cells (human neuroblastoma cells) were used in the study. The cellular viability of SH-SY5Y cells was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and the cell apoptosis rate was determined by flow cytometry analysis with Annexin V-fluorescein isothiocyanate and propidium iodide staining with or without hemin pretreatment. Cell viability and apoptotic activation were detected after hemin administration combined with neuroglobin (Nqb), thioredoxin-1, peroxiredoxin-2, or heme oxygenase-1 siRNA transient transfection. The release of cytochrome c from mitochondria and the interaction between Ngb and cytochrome c were examined with hemin pretreatment. Hemin had a neuroprotective effect in OGD-treated SH-SY5Y cells, which was mainly mediated by the upregulation of Ngb. Moreover, the release of cytochrome c from mitochondria was inhibited by hemin-induced Ngb expression through facilitating the interaction of Ngb with cytochrome c in mitochondria. The present findings provided new insights into the neuroprotective mechanisms of hemin. It was concluded that low-dose hemin pretreatment had a neuroprotective effect in OGD-treated SH-SY5Y cells, through inhibiting cell apoptosis. The neuroprotective effects of hemin following hypoxic-ischemic neuronal damage were mainly mediated by Ngb. One underlying mechanism was hemin-induced overexpression of mitochondrial Ngb, which inhibited endogenous apoptosis via the association with cytochrome c.
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Affiliation(s)
- Yun-Jia Wang
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China
| | - Qian-Yi Peng
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China
| | - Song-Yun Deng
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China
| | - Cai-Xia Chen
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China
| | - Long Wu
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China
| | - Li Huang
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China
| | - Li-Na Zhang
- Department of Intensive Care Unit, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, 410008, China.
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12
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Tian R, Losilla M, Lu Y, Yang G, Zakon H. Molecular evolution of globin genes in Gymnotiform electric fishes: relation to hypoxia tolerance. BMC Evol Biol 2017; 17:51. [PMID: 28193153 PMCID: PMC5307702 DOI: 10.1186/s12862-017-0893-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 01/26/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Nocturnally active gymnotiform weakly electric fish generate electric signals for communication and navigation, which can be energetically taxing. These fish mainly inhabit the Amazon basin, where some species prefer well-oxygenated waters and others live in oxygen-poor, stagnant habitats. The latter species show morphological, physiological, and behavioral adaptations for hypoxia-tolerance. However, there have been no studies of hypoxia tolerance on the molecular level. Globins are classic respiratory proteins. They function principally in oxygen-binding and -delivery in various tissues and organs. Here, we investigate the molecular evolution of alpha and beta hemoglobins, myoglobin, and neuroglobin in 12 gymnotiforms compared with other teleost fish. RESULTS The present study identified positively selected sites (PSS) on hemoglobin (Hb) and myoglobin (Mb) genes using different maximum likelihood (ML) methods; some PSS fall in structurally important protein regions. This evidence for the positive selection of globin genes suggests that the adaptive evolution of these genes has helped to enhance the capacity for oxygen storage and transport. Interestingly, a substitution of a Cys at a key site in the obligate air-breathing electric eel (Electrophorus electricus) is predicted to enhance oxygen storage of Mb and contribute to NO delivery during hypoxia. A parallel Cys substitution was also noted in an air-breathing African electric fish (Gymnarchus niloticus). Moreover, the expected pattern under normoxic conditions of high expression of myoglobin in heart and neuroglobin in the brain in two hypoxia-tolerant species suggests that the main effect of selection on these globin genes is on their sequence rather than their basal expression patterns. CONCLUSION Results indicate a clear signature of positive selection in the globin genes of most hypoxia-tolerant gymnotiform fishes, which are obligate or facultative air breathers. These findings highlight the critical role of globin genes in hypoxia tolerance evolution of Gymnotiform electric fishes.
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Affiliation(s)
- Ran Tian
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China
- Department of Integrative Biology, The University of Texas, Austin, TX, 78759, USA
| | - Mauricio Losilla
- Department of Integrative Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Ying Lu
- Department of Integrative Biology, The University of Texas, Austin, TX, 78759, USA
- Department of Neuroscience, The University of Texas, Austin, TX, 78759, USA
| | - Guang Yang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China.
| | - Harold Zakon
- Department of Integrative Biology, The University of Texas, Austin, TX, 78759, USA.
- Department of Neuroscience, The University of Texas, Austin, TX, 78759, USA.
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13
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Tam KT, Chan PK, Zhang W, Law PP, Tian Z, Fung Chan GC, Philipsen S, Festenstein R, Tan-Un KC. Identification of a novel distal regulatory element of the human Neuroglobin gene by the chromosome conformation capture approach. Nucleic Acids Res 2017; 45:115-126. [PMID: 27651453 PMCID: PMC5224503 DOI: 10.1093/nar/gkw820] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 08/29/2016] [Accepted: 08/31/2016] [Indexed: 12/24/2022] Open
Abstract
Neuroglobin (NGB) is predominantly expressed in the brain and retina. Studies suggest that NGB exerts protective effects to neuronal cells and is implicated in reducing the severity of stroke and Alzheimer's disease. However, little is known about the mechanisms which regulate the cell type-specific expression of the gene. In this study, we hypothesized that distal regulatory elements (DREs) are involved in optimal expression of the NGB gene. By chromosome conformation capture we identified two novel DREs located -70 kb upstream and +100 kb downstream from the NGB gene. ENCODE database showed the presence of DNaseI hypersensitive and transcription factors binding sites in these regions. Further analyses using luciferase reporters and chromatin immunoprecipitation suggested that the -70 kb region upstream of the NGB gene contained a neuronal-specific enhancer and GATA transcription factor binding sites. Knockdown of GATA-2 caused NGB expression to drop dramatically, indicating GATA-2 as an essential transcription factor for the activation of NGB expression. The crucial role of the DRE in NGB expression activation was further confirmed by the drop in NGB level after CRISPR-mediated deletion of the DRE. Taken together, we show that the NGB gene is regulated by a cell type-specific loop formed between its promoter and the novel DRE.
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MESH Headings
- Binding Sites
- CRISPR-Cas Systems
- Cell Line, Tumor
- Chromosomes, Human, Pair 14/chemistry
- Deoxyribonuclease I/genetics
- Deoxyribonuclease I/metabolism
- GATA2 Transcription Factor/genetics
- GATA2 Transcription Factor/metabolism
- Gene Editing
- Gene Expression Regulation
- Genes, Reporter
- Globins/antagonists & inhibitors
- Globins/genetics
- Globins/metabolism
- HeLa Cells
- Humans
- K562 Cells
- Luciferases/genetics
- Luciferases/metabolism
- Nerve Tissue Proteins/antagonists & inhibitors
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Neuroglobin
- Neurons/cytology
- Neurons/metabolism
- Organ Specificity
- Protein Binding
- RNA, Guide, CRISPR-Cas Systems/genetics
- RNA, Guide, CRISPR-Cas Systems/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Regulatory Elements, Transcriptional
- Signal Transduction
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Affiliation(s)
- Kin Tung Tam
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
| | - Ping Kei Chan
- Gene Control Mechanisms and Disease Group, Department of Medicine, Division of Brain Sciences and MRC Clinical Sciences Centre, Imperial College School of Medicine, London W12 0NN, United Kingdom
| | - Wei Zhang
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
| | - Pui Pik Law
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
- Gene Control Mechanisms and Disease Group, Department of Medicine, Division of Brain Sciences and MRC Clinical Sciences Centre, Imperial College School of Medicine, London W12 0NN, United Kingdom
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
| | - Zhipeng Tian
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
- School of Professional and Continuing Education (HKU SPACE), The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
| | - Godfrey Chi Fung Chan
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
| | - Sjaak Philipsen
- Department of Cell Biology, Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Richard Festenstein
- Gene Control Mechanisms and Disease Group, Department of Medicine, Division of Brain Sciences and MRC Clinical Sciences Centre, Imperial College School of Medicine, London W12 0NN, United Kingdom
| | - Kian Cheng Tan-Un
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
- School of Professional and Continuing Education (HKU SPACE), The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., China
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14
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Azarov I, Wang L, Rose JJ, Xu Q, Huang XN, Belanger A, Wang Y, Guo L, Liu C, Ucer KB, McTiernan CF, O'Donnell CP, Shiva S, Tejero J, Kim-Shapiro DB, Gladwin MT. Five-coordinate H64Q neuroglobin as a ligand-trap antidote for carbon monoxide poisoning. Sci Transl Med 2016; 8:368ra173. [PMID: 27928027 PMCID: PMC5206801 DOI: 10.1126/scitranslmed.aah6571] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 11/16/2016] [Indexed: 12/11/2022]
Abstract
Carbon monoxide (CO) is a leading cause of poisoning deaths worldwide, with no available antidotal therapy. We introduce a potential treatment paradigm for CO poisoning, based on near-irreversible binding of CO by an engineered human neuroglobin (Ngb). Ngb is a six-coordinate hemoprotein, with the heme iron coordinated by two histidine residues. We mutated the distal histidine to glutamine (H64Q) and substituted three surface cysteines with less reactive amino acids to form a five-coordinate heme protein (Ngb-H64Q-CCC). This molecule exhibited an unusually high affinity for gaseous ligands, with a P50 (partial pressure of O2 at which hemoglobin is half-saturated) value for oxygen of 0.015 mmHg. Ngb-H64Q-CCC bound CO about 500 times more strongly than did hemoglobin. Incubation of Ngb-H64Q-CCC with 100% CO-saturated hemoglobin, either cell-free or encapsulated in human red blood cells, reduced the half-life of carboxyhemoglobin to 0.11 and 0.41 min, respectively, from ≥200 min when the hemoglobin or red blood cells were exposed only to air. Infusion of Ngb-H64Q-CCC to CO-poisoned mice enhanced CO removal from red blood cells, restored heart rate and blood pressure, increased survival, and was followed by rapid renal elimination of CO-bound Ngb-H64Q-CCC. Heme-based scavenger molecules with very high CO binding affinity, such as our mutant five-coordinate Ngb, are potential antidotes for CO poisoning by virtue of their ability to bind and eliminate CO.
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Affiliation(s)
- Ivan Azarov
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Ling Wang
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Jason J Rose
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Qinzi Xu
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Xueyin N Huang
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Andrea Belanger
- Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Ying Wang
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Lanping Guo
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Chen Liu
- Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Kamil B Ucer
- Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Charles F McTiernan
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Christopher P O'Donnell
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Sruti Shiva
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Jesús Tejero
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Daniel B Kim-Shapiro
- Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA
- Translational Science Center, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Mark T Gladwin
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA.
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
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15
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Guidolin D, Tortorella C, Marcoli M, Maura G, Agnati LF. Neuroglobin, a Factor Playing for Nerve Cell Survival. Int J Mol Sci 2016; 17:ijms17111817. [PMID: 27809238 PMCID: PMC5133818 DOI: 10.3390/ijms17111817] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/14/2016] [Accepted: 10/26/2016] [Indexed: 12/17/2022] Open
Abstract
Cell death represents the final outcome of several pathological conditions of the central nervous system and available evidence suggests that in both acute injuries and neurodegenerative diseases it is often associated with mitochondrial dysfunction. Thus, the possibility to prevent mitochondrial events involved in cell death might represent efficient tools to limit neuronal damage. In recent years, increased attention has been paid to the endogenous protein neuroglobin, since accumulating evidence showed that its high expression was associated with preserved mitochondrial function and to an increased survival of nerve cells in vitro and in vivo in a variety of experimental models of cell insult. The biological and structural features of neuroglobin and the mitochondria-related mechanisms of neuroglobin-induced neuroprotection will be here briefly discussed. In this respect, the inhibition of the intrinsic pathway of apoptosis emerges as a key neuroprotective effect induced by the protein. These findings could open the possibility to develop efficient neuroglobin-mediated therapeutic strategies aimed at minimizing the neuronal cell death occurring in impacting neurological pathologies like stroke and neurodegenerative diseases.
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Affiliation(s)
- Diego Guidolin
- Department of Neuroscience, University of Padova, Padova 35122, Italy.
| | - Cinzia Tortorella
- Department of Neuroscience, University of Padova, Padova 35122, Italy.
| | - Manuela Marcoli
- Department of Pharmacy and Center of Excellence for Biomedical Research, University of Genova, Genova 16126, Italy.
| | - Guido Maura
- Department of Pharmacy and Center of Excellence for Biomedical Research, University of Genova, Genova 16126, Italy.
| | - Luigi F Agnati
- Department of Biomedical Sciences, University of Modena and Reggio Emilia, Modena 41121, Italy.
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden.
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16
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Zhang LN, Hu SB, Deng SY, Chen CX, Wu L, Peng QY, Huang L, Ai YH. [Influences of DNA methylation upon neuroglobin sustained expression in oxygen- glucose deprivation model]. Zhonghua Yi Xue Za Zhi 2016; 96:3164-3169. [PMID: 27852417 DOI: 10.3760/cma.j.issn.0376-2491.2016.39.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influences of genomic DNA methylation upon neuroglobin sustained expression in oxygen- glucose deprivation model. Methods: With A549 cell strain as the research object, the control group were cultivated in the complete medium containing 10 μmol/L of 5-azacytidine for 4 days, and the control group was cultivated in the complete medium for 4 days.Then carried out oxygen glucose deprivation treatment for 4 h.Detecting neuroglobin expression, DNA methyltransferase expression, cell inhibition ratio and DNA methylation level at different time points. Results: DNA methylation level of the experimental group declined apparently[6 h : (1.0±0.0) vs (2.1±0.3); 12 h: ( 0.9±0.0) vs (1.4±0.0); 24 h: (0.9±0.0) vs (2.6±0.2); 36 h: (0.9±0.0) vs (2.9±0.1)], neuroglobin expression of the experimental group continued and was obviously higher than that of the control group at the same time point[NGB-PCR: 6 h: (3.3±1.1) vs (0.4±0.1); 12 h: (3.2±0.8) vs (0.1±0.1); 24 h: (4.6±0.6) vs (0.2±0.0); 36 h : (5.1±0.3) vs (0.1±0.1)], while the Cell inhibition ratio of the experimental group was obviously lower than that of the control group at the same time point[(6 h: (10.4±0.5) vs (14.1±0.7); 12 h: (22.0±1.3) vs (35.1±0.5); 24 h: (25.7±1.0) vs (40.6±1.3); 36 h: (30.0±0.8) vs (44.4±0.7)], differences had statistical significance (P<0.05).mRNA expression of three methyltransferases of the experimental group was higher than that of the control group at different time points, where, DNMT1 and DNMT3B showed great differences (P<0.05), while differences in DNMT3A of two groups had no statistical significance (P>0.05). Conclusions: In the OGD/R model of A549 cell strain, genomic DNA methylation resulted in unsustained expression of neuroglobin, but neuroglobin expression increased after demethylation inhibitor was used.
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Affiliation(s)
- L N Zhang
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
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17
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Avila-Rodriguez M, Garcia-Segura LM, Hidalgo-Lanussa O, Baez E, Gonzalez J, Barreto GE. Tibolone protects astrocytic cells from glucose deprivation through a mechanism involving estrogen receptor beta and the upregulation of neuroglobin expression. Mol Cell Endocrinol 2016; 433:35-46. [PMID: 27250720 DOI: 10.1016/j.mce.2016.05.024] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/29/2016] [Accepted: 05/28/2016] [Indexed: 10/21/2022]
Abstract
Tibolone, a synthetic steroid used for the prevention of osteoporosis and the treatment of climacteric symptoms in post-menopausal women, may exert tissue selective estrogenic actions acting on estrogen receptors (ERs). We previously showed that tibolone protects human T98G astroglial cells against glucose deprivation (GD). In this study we have explored whether the protective effect of tibolone on these cells is mediated by ERs. Experimental studies showed that both ERα and ERβ were involved in the protection by tibolone on GD cells, being ERβ preferentially involved on these actions over ERα. Tibolone increased viability of GD cells by a mechanism fully blocked by an ERβ antagonist and partially blocked by an ERα antagonist. Furthermore, ERβ inhibition prevented the effect of tibolone on nuclear fragmentation, ROS and mitochondrial membrane potential in GD cells. The protective effect of tibolone was mediated by neuroglobin. Tibolone upregulated neuroglobin in T98G cells and primary mouse astrocytes by a mechanism involving ERβ and neuroglobin silencing prevented the protective action of tibolone on GD cells. In summary, tibolone protects T98G cells by a mechanism involving ERβ and the upregulation of neuroglobin.
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Affiliation(s)
- Marco Avila-Rodriguez
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia; Departamento de Ciencias Clínicas, Facultad de Ciencias de la Salud, Universidad del Tolima, Ibagué, Colombia
| | | | - Oscar Hidalgo-Lanussa
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
| | - Eliana Baez
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
| | - Janneth Gonzalez
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia; Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile; Universidad Científica del Sur, Lima, Peru.
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18
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Kleinknecht A, Popova B, Lázaro DF, Pinho R, Valerius O, Outeiro TF, Braus GH. C-Terminal Tyrosine Residue Modifications Modulate the Protective Phosphorylation of Serine 129 of α-Synuclein in a Yeast Model of Parkinson's Disease. PLoS Genet 2016; 12:e1006098. [PMID: 27341336 PMCID: PMC4920419 DOI: 10.1371/journal.pgen.1006098] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 05/10/2016] [Indexed: 12/15/2022] Open
Abstract
Parkinson´s disease (PD) is characterized by the presence of proteinaceous inclusions called Lewy bodies that are mainly composed of α-synuclein (αSyn). Elevated levels of oxidative or nitrative stresses have been implicated in αSyn related toxicity. Phosphorylation of αSyn on serine 129 (S129) modulates autophagic clearance of inclusions and is prominently found in Lewy bodies. The neighboring tyrosine residues Y125, Y133 and Y136 are phosphorylation and nitration sites. Using a yeast model of PD, we found that Y133 is required for protective S129 phosphorylation and for S129-independent proteasome clearance. αSyn can be nitrated and form stable covalent dimers originating from covalent crosslinking of two tyrosine residues. Nitrated tyrosine residues, but not di-tyrosine-crosslinked dimers, contributed to αSyn cytotoxicity and aggregation. Analysis of tyrosine residues involved in nitration and crosslinking revealed that the C-terminus, rather than the N-terminus of αSyn, is modified by nitration and di-tyrosine formation. The nitration level of wild-type αSyn was higher compared to that of A30P mutant that is non-toxic in yeast. A30P formed more dimers than wild-type αSyn, suggesting that dimer formation represents a cellular detoxification pathway in yeast. Deletion of the yeast flavohemoglobin gene YHB1 resulted in an increase of cellular nitrative stress and cytotoxicity leading to enhanced aggregation of A30P αSyn. Yhb1 protected yeast from A30P-induced mitochondrial fragmentation and peroxynitrite-induced nitrative stress. Strikingly, overexpression of neuroglobin, the human homolog of YHB1, protected against αSyn inclusion formation in mammalian cells. In total, our data suggest that C-terminal Y133 plays a major role in αSyn aggregate clearance by supporting the protective S129 phosphorylation for autophagy and by promoting proteasome clearance. C-terminal tyrosine nitration increases pathogenicity and can only be partially detoxified by αSyn di-tyrosine dimers. Our findings uncover a complex interplay between S129 phosphorylation and C-terminal tyrosine modifications of αSyn that likely participates in PD pathology. Parkinson’s disease is characterized by loss of dopaminergic neurons in midbrain and the presence of αSyn protein inclusions. Human αSyn mimics the disease pathology in yeast resulting in cytotoxicity and aggregate formation. αSyn is abundantly phosphorylated at serine S129 and possesses four tyrosines (Y39, Y125, Y133, and Y136) that can be posttranslationally modified by nitration or phosphorylation. The consequence of each of these possible modifications is still unclear. Nitration as consequence of oxidative stress is a hallmark for neurodegenerative diseases. Here, we addressed the molecular mechanism, how tyrosine posttranslational modifications affect αSyn cytotoxicity. Tyrosine nitration can contribute to αSyn toxicity or can be part of a cellular salvage pathway when di-tyrosine-crosslinked dimers are formed. The Y133 residue, which can be either phosphorylated or nitrated, determines whether S129 is protectively phosphorylated and αSyn inclusions are cleared. This interplay with S129 phosphorylation demonstrates a dual role for C-terminal tyrosine residues. Yeast flavohemoglobin Yhb1 and its human counterpart neuroglobin NGB protect cells against cytotoxicity and aggregate formation. These novel insights into the molecular pathways responsible for αSyn cytotoxicity indicate NGB as a potential target for therapeutic intervention in PD.
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Affiliation(s)
- Alexandra Kleinknecht
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, Georg-August-Universität, Göttingen, Germany
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
| | - Blagovesta Popova
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, Georg-August-Universität, Göttingen, Germany
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
| | - Diana F. Lázaro
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
- Department of NeuroDegeneration and Restorative Research, University of Göttingen Medical School, Göttingen, Germany
| | - Raquel Pinho
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
- Department of NeuroDegeneration and Restorative Research, University of Göttingen Medical School, Göttingen, Germany
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Oliver Valerius
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, Georg-August-Universität, Göttingen, Germany
| | - Tiago F. Outeiro
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
- Department of NeuroDegeneration and Restorative Research, University of Göttingen Medical School, Göttingen, Germany
- Max Planck Institute for Experimental Medicine, Göttingen, Germany
| | - Gerhard H. Braus
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, Georg-August-Universität, Göttingen, Germany
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
- * E-mail:
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19
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Liu X, Gao Y, An Y, Fu X, Li Y, Sun D, Wang J. Neuroglobin Plays a Protective Role in Arsenite-Induced Cytotoxicity by Inhibition of Cdc42 and Rac1GTPases in Rat Cerebellar Granule Neurons. Cell Physiol Biochem 2016; 36:1613-27. [PMID: 26160017 DOI: 10.1159/000430323] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND AIMS We have previously shown that neuroglobin (Ngb) expression can be regulated by sodium arsenite (NaAsO2) exposure in rat cerebellar granule neurons (CGNs). However, the precise molecular mechanisms of Ngb action are largely unknown. Ras homolog (Rho) guanosine triphosphatases (Rho GTPases) are involved in the regulation of a number of cellular processes, including cell cytotoxicity. It has been reported that Ngb can act as a guanine nucleotide dissociation inhibitior (GDI) role to inactivate Rho GTPases. Therefore, we investigated Rho GTPases activation induced by NaAsO2 exposure in rat CGNs and effects of Rho GTPases activation on the cells. We also investigated the role of Ngb in this process. METHODS Primary cultures of CGNs were prepared from 7-day-old Wistar rat pups. The cytotoxic effects of NaAsO2 on CGNs were evaluated using the Cell Counting Kit-8 assay and TUNEL staining. RNA interference technology was used to silence Ngb, and the subsequent effects were evaluated by quantitative RT-PCR and Western blot. Cdc42 and Rac1 activation were measured by pull-down assay and Western blot. RESULTS NaAsO2 induced cytotoxicity in rat CGNs, increased GTP-bound form of Cdc42 and Rac1 GTPases in the cells. Furthermore, inhibition of Cdc42 or Rac1 activity using the inhibitor ZCL278 or NSC23766 decreased apoptosis and increased cell viability in the cells exposed to NaAsO2. Using siRNA-mediated knockdown, we show that NaAsO2-induced cytotoxicity was exacerbated, activation of Cdc42 (GTP-Cdc42) and Rac1 (GTP-Rac1) was increased in Ngb RNA silencing cells. CONCLUSIONS cytotoxic effects of NaAsO2 on rat CGNs is induced at least partly by Cdc42 and Rac1 activation, and Ngb can inhibit Cdc42 and Rac1 activation to play protective role in rat CGNs exposed to NaAsO2.
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20
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Fiocchetti M, Cipolletti M, Leone S, Naldini A, Carraro F, Giordano D, Verde C, Ascenzi P, Marino M. Neuroglobin in Breast Cancer Cells: Effect of Hypoxia and Oxidative Stress on Protein Level, Localization, and Anti-Apoptotic Function. PLoS One 2016; 11:e0154959. [PMID: 27149623 PMCID: PMC4858147 DOI: 10.1371/journal.pone.0154959] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/21/2016] [Indexed: 12/27/2022] Open
Abstract
The over-expression of human neuroglobin (NGB), a heme-protein preferentially expressed in the brain, displays anti-apoptotic effects against hypoxic/ischemic and oxidative stresses enhancing neuron survival. As hypoxic and oxidative stress injury frequently occurs in fast proliferating neoplastic tissues, here, the effect of these stressors on the level, localization, and anti-apoptotic function of NGB in wild type and NGB-stable-silenced MCF-7 breast cancer cells has been assessed. The well-known endogenous NGB inducer 17β-estradiol (E2) has been used as positive control. The median pO2 present in tumor microenvironment of breast cancer patients (i.e., 2% O2) does not affect the NGB level in breast cancer cells, whereas hydrogen peroxide and lead(IV) acetate, which increase intracellular reactive oxygen species (ROS) level, enhance the NGB levels outside the mitochondria and still activate apoptosis. However, E2-induced NGB up-regulation in mitochondria completely reverse lead(IV) acetate-induced PARP cleavage. These results indicate that the NGB level could represent a marker of oxidative-stress in MCF-7 breast cancer cells; however, the NGB ability to respond to injuring stimuli by preventing apoptosis requires its re-allocation into the mitochondria. As a whole, present data might lead to a new direction in understanding NGB function in cancer opening new avenues for the therapeutic intervention.
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Affiliation(s)
- Marco Fiocchetti
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Manuela Cipolletti
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Stefano Leone
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Antonella Naldini
- Department of Molecular and Developmental Medicine, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Fabio Carraro
- Department of Molecular and Developmental Medicine, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Daniela Giordano
- Biosciences and BioResources Institute—CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Cinzia Verde
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
- Biosciences and BioResources Institute—CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Paolo Ascenzi
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
- Biosciences and BioResources Institute—CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
- Interdepartmental Laboratory of Electron Microscopy, Roma Tre University, Via della Vasca Navale 79, I-00146 Roma, Italy
| | - Maria Marino
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
- Biosciences and BioResources Institute—CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
- * E-mail:
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21
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Motion C, Lovett JE, Bell S, Cassidy SL, Cruickshank PAS, Bolton DR, Hunter RI, El Mkami H, Van Doorslaer S, Smith GM. DEER Sensitivity between Iron Centers and Nitroxides in Heme-Containing Proteins Improves Dramatically Using Broadband, High-Field EPR. J Phys Chem Lett 2016; 7:1411-5. [PMID: 27035368 PMCID: PMC4863198 DOI: 10.1021/acs.jpclett.6b00456] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 03/30/2016] [Indexed: 05/22/2023]
Abstract
This work demonstrates the feasibility of making sensitive nanometer distance measurements between Fe(III) heme centers and nitroxide spin labels in proteins using the double electron-electron resonance (DEER) pulsed EPR technique at 94 GHz. Techniques to measure accurately long distances in many classes of heme proteins using DEER are currently strongly limited by sensitivity. In this paper we demonstrate sensitivity gains of more than 30 times compared with previous lower frequency (X-band) DEER measurements on both human neuroglobin and sperm whale myoglobin. This is achieved by taking advantage of recent instrumental advances, employing wideband excitation techniques based on composite pulses and exploiting more favorable relaxation properties of low-spin Fe(III) in high magnetic fields. This gain in sensitivity potentially allows the DEER technique to be routinely used as a sensitive probe of structure and conformation in the large number of heme and many other metalloproteins.
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Affiliation(s)
- Claire
L. Motion
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - Janet E. Lovett
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - Stacey Bell
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - Scott L. Cassidy
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - Paul A. S. Cruickshank
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - David R. Bolton
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - Robert I. Hunter
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | - Hassane El Mkami
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
| | | | - Graham M. Smith
- SUPA,
School of Physics & Astronomy, University
of St Andrews, North
Haugh, St. Andrews, Fife, KY16 9SS, United Kingdom
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22
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Sugitani K, Koriyama Y, Ogai K, Wakasugi K, Kato S. A Possible Role of Neuroglobin in the Retina After Optic Nerve Injury: A Comparative Study of Zebrafish and Mouse Retina. Adv Exp Med Biol 2016; 854:671-5. [PMID: 26427474 DOI: 10.1007/978-3-319-17121-0_89] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Neuroglobin (Ngb) is a new member of the family of heme proteins and is specifically expressed in neurons of the central and peripheral nervous systems in all vertebrates. In particular, the retina has a 100-fold higher concentration of Ngb than do other nervous tissues. The role of Ngb in the retina is yet to be clarified. Therefore, to understand the functional role of Ngb in the retina after optic nerve injury (ONI), we used two types of retina, from zebrafish and mice, which have permissible and non-permissible capacity for nerve regeneration after ONI, respectively. After ONI, the Ngb protein in zebrafish was upregulated in the amacrine cells within 3 days, whereas in the mouse retina, Ngb was downregulated in the retinal ganglion cells (RGCs) within 3 days. Zebrafish Ngb (z-Ngb) significantly enhanced neurite outgrowth in retinal explant culture. According to these results, we designed an overexpression experiment with the mouse Ngb (m-Ngb) gene in RGC-5 cells (retinal precursor cells). The excess of m-Ngb actually rescued RGC-5 cells under hypoxic conditions and significantly enhanced neurite outgrowth in cell culture. These data suggest that mammalian Ngb has positive neuroprotective and neuritogenic effects that induce nerve regeneration after ONI.
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Affiliation(s)
- Kayo Sugitani
- Department of Clinical Laboratory Sciences, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, 920-0942, Kanazawa, Japan.
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Sciences, 3500-3 Minamitamagaki, 513-8670, Suzuka, Mie, Japan.
| | - Kazuhiro Ogai
- Wellness Promotion Science Center, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, 920-0942, Kanazawa, Japan.
| | - Keisuke Wakasugi
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, 153-8902, Meguro-ku, Japan.
| | - Satoru Kato
- Department of Molecular Neurobiology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-machi, 920-8640, Kanazawa, Japan.
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23
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Oliveira KC, da Conceição RR, Piedade GC, de Souza JS, Sato MA, de Barros Maciel RM, Giannocco G. Thyroid hormone modulates neuroglobin and cytoglobin in rat brain. Metab Brain Dis 2015; 30:1401-8. [PMID: 26334191 DOI: 10.1007/s11011-015-9718-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/17/2015] [Indexed: 10/23/2022]
Abstract
Thyroid hormones (THs) are essential and crucial for brain development, playing a role in growth and differentiation. Two globins named neuroglobin (Ngb) and cytoglobin (Cygb) are located in the brain, and each one has different distribution and function: They seem to have similar action by providing O(2) for respiratory chain, and detoxification of reactive oxygen species (ROS) and nitric oxide (NO) protecting tissues against irreversible lesions. We aimed to investigate the influence of thyroid state in Ngb and Cygb metabolism in different brain regions and evaluate their responses in cerebellum, hippocampus and cerebral cortex (hereafter called as cortex) after supraphysiological doses at different time points of TH administration. Experiments were carried out in rats, divided in eight experimental groups Control (C), thyroidectomy (Tx), and thyroidectomy treated with jugular intravenous injection (i.v). T3 (100 μl/100 g) injection and sacrificed after 30, 60, 120 min and 6, 12 and 24 h. In cortex, we found increase in Ngb gene and protein expression in different time points compared to C group, however Cygb gene and protein expression were decreased. In hippocampus, Ngb and Cygb protein expression increased 24 h after i.v. T3 injection in comparison to Tx. In cerebellum, we found increased Ngb gene expression after 120 min, 6, 12 and 24 h after T3 administration compared to Tx, and in contrast, protein expression was found to be significantly increased only 12 and 24 h compared to Tx. Ngb and Cygb expression in brain is influenced by thyroid hormone state both by its lack or excess.
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Affiliation(s)
- Kelen Carneiro Oliveira
- Department Morphology and Physiology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
- Department Medicine, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil
| | - Rodrigo Rodrigues da Conceição
- Department Medicine, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil
| | - Gisele Constantinov Piedade
- Department Physiology and Biophysics, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Janaina Sena de Souza
- Department Medicine, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil
| | - Monica Akemi Sato
- Department Morphology and Physiology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Rui Monteiro de Barros Maciel
- Department Medicine, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil
| | - Gisele Giannocco
- Department Morphology and Physiology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil.
- Department Medicine, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil.
- Department Biological Sciences, Universidade Federal de Sao Paulo, Diadema, SP, Brazil.
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24
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Korzhevskii DE, Grigorev IP, Kirik OV, Alekseeva OS. [ NEUROGLOBIN DISTRIBUTION IN THE RAT CEREBELLAR PURKINJE CELLS]. Zh Evol Biokhim Fiziol 2015; 51:459-461. [PMID: 26983282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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25
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Chen X, Liu Y, Zhang L, Zhu P, Zhu H, Yang Y, Guan P. Long-term neuroglobin expression of human astrocytes following brain trauma. Neurosci Lett 2015; 606:194-9. [PMID: 26362813 DOI: 10.1016/j.neulet.2015.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/23/2015] [Accepted: 09/03/2015] [Indexed: 11/19/2022]
Abstract
Neuroglobin (Ngb), a 17 kDa monomeric protein, was initially described as a vertebrate oxygen-binding heme protein in 2000 and detected in metabolically active organs or cells, like the brain, peripheral nervous system as well as certain endocrine cells. A large array of initial experimental work reported that Ngb displayed a neuron restricted expression pattern in mammalian brains. However, growing evidence indicated astrocytes may also express Ngb under pathological conditions. To address the question whether human astrocytes express Ngb under traumatic insults, we investigated Ngb immuno-reactivity in post-mortem human brain tissues that died of acute, sub-acute and chronic brain trauma, respectively. We observed astrocytic Ngb expression in sub-acute and chronic traumatic brains rather than acute traumatic brains. Strikingly, the Ngb immuno-reactive astrocytes were still strongly detectable in groups that died 12 months after brain trauma. Our findings may imply an unexplored role of Ngb in astrocytes and the involved mechanisms were suggested to be further characterized. Also, therapeutic application of Ngb or Ngb-inducible chemical compounds in neuro-genesis or astrocytic scar forming can be expected.
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Affiliation(s)
- Xiameng Chen
- Department of Forensic Pathology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Yuan Liu
- Department of Forensic Pathology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Lin Zhang
- Laboratory of Molecular Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Peng Zhu
- The People's Procuratorate of Chengdu, Sichuan, PR China
| | - Haibiao Zhu
- Department of Forensic Pathology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Yu Yang
- Department of Forensic Pathology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Peng Guan
- Department of Forensic Pathology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China.
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26
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Christensen AB, Herman JL, Elphick MR, Kober KM, Janies D, Linchangco G, Semmens DC, Bailly X, Vinogradov SN, Hoogewijs D. Phylogeny of Echinoderm Hemoglobins. PLoS One 2015; 10:e0129668. [PMID: 26247465 PMCID: PMC4527676 DOI: 10.1371/journal.pone.0129668] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 05/12/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Recent genomic information has revealed that neuroglobin and cytoglobin are the two principal lineages of vertebrate hemoglobins, with the latter encompassing the familiar myoglobin and α-globin/β-globin tetramer hemoglobin, and several minor groups. In contrast, very little is known about hemoglobins in echinoderms, a phylum of exclusively marine organisms closely related to vertebrates, beyond the presence of coelomic hemoglobins in sea cucumbers and brittle stars. We identified about 50 hemoglobins in sea urchin, starfish and sea cucumber genomes and transcriptomes, and used Bayesian inference to carry out a molecular phylogenetic analysis of their relationship to vertebrate sequences, specifically, to assess the hypothesis that the neuroglobin and cytoglobin lineages are also present in echinoderms. RESULTS The genome of the sea urchin Strongylocentrotus purpuratus encodes several hemoglobins, including a unique chimeric 14-domain globin, 2 androglobin isoforms and a unique single androglobin domain protein. Other strongylocentrotid genomes appear to have similar repertoires of globin genes. We carried out molecular phylogenetic analyses of 52 hemoglobins identified in sea urchin, brittle star and sea cucumber genomes and transcriptomes, using different multiple sequence alignment methods coupled with Bayesian and maximum likelihood approaches. The results demonstrate that there are two major globin lineages in echinoderms, which are related to the vertebrate neuroglobin and cytoglobin lineages. Furthermore, the brittle star and sea cucumber coelomic hemoglobins appear to have evolved independently from the cytoglobin lineage, similar to the evolution of erythroid oxygen binding globins in cyclostomes and vertebrates. CONCLUSION The presence of echinoderm globins related to the vertebrate neuroglobin and cytoglobin lineages suggests that the split between neuroglobins and cytoglobins occurred in the deuterostome ancestor shared by echinoderms and vertebrates.
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Affiliation(s)
- Ana B. Christensen
- Biology Department, Lamar University, Beaumont, Texas, United States of America
| | - Joseph L. Herman
- Department of Statistics, University of Oxford, Oxford, OX1 3TG, United Kingdom
- Division of Mathematical Biology, National Institute of Medical Research, London, NW7 1AA, United Kingdom
| | - Maurice R. Elphick
- School of Biological & Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Kord M. Kober
- Department of Ecology & Evolutionary Biology, University of California Santa Cruz, Santa Cruz, California, United States of America
| | - Daniel Janies
- College of Computing and Informatics, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States of America
| | - Gregorio Linchangco
- College of Computing and Informatics, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States of America
| | - Dean C. Semmens
- School of Biological & Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Xavier Bailly
- Marine Plants and Biomolecules, Station Biologique de Roscoff, 2968 Roscoff, France
| | - Serge N. Vinogradov
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, United States of America
| | - David Hoogewijs
- Institute of Physiology, University of Duisburg-Essen, Essen, Germany
- * E-mail:
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27
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Fiocchetti M, Camilli G, Acconcia F, Leone S, Ascenzi P, Marino M. ERβ-dependent neuroglobin up-regulation impairs 17β-estradiol-induced apoptosis in DLD-1 colon cancer cells upon oxidative stress injury. J Steroid Biochem Mol Biol 2015; 149:128-37. [PMID: 25683270 DOI: 10.1016/j.jsbmb.2015.02.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 01/20/2015] [Accepted: 02/10/2015] [Indexed: 11/18/2022]
Abstract
Besides other mechanism(s) 17β-estradiol (E2) facilitates neuronal survival by increasing, via estrogen receptor β (ERβ), the levels of neuroglobin (NGB) an anti-apoptotic protein. In contrast, E2 could exert protective effects in cancer cells by activating apoptosis when the ERβ level prevails on that of ERα as in colon cancer cell lines. These apparently contrasting results raise the possibility that E2-induced NGB up-regulation could regulate the ERβ activities shunning this receptor subtype to trigger an apoptotic cascade in neurons but not in non-neuronal cells. Here, human colorectal adenocarcinoma cell line (DLD-1) that only expresses ERβ and HeLa cells transiently transfected with ERβ encoding vector has been used to verify this hypothesis. In addition, neuroblastoma SK-N-BE cells were used as positive control. Surprisingly, E2 also induced NGB up-regulation, in a dose- and time-dependent manner, in DLD-1 cells. The ERβ-mediated activation of p38/MAPK was necessary for this E2 effect. E2 induced NGB re-allocation in mitochondria where, subsequently to an oxidative stress injury (i.e., 100μM H2O2), NGB interacted with cytochrome c preventing its release into the cytosol and the activation of an apoptotic cascade. As a whole, these results demonstrate that E2-induced NGB up-regulation could act as an oxidative stress sensor, which does not oppose to the pro-apoptotic E2 effect in ERβ-containing colon cancer cells unless a rise of oxidative stress occurs. These results support the concept that oxidative stress plays a critical role in E2-induced carcinogenesis and further open an important scenario to develop novel therapeutic strategies that target NGB against E2-related cancers.
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Affiliation(s)
- Marco Fiocchetti
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Giulia Camilli
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Filippo Acconcia
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Stefano Leone
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Paolo Ascenzi
- Interdepartmental Laboratory of Electron Microscopy, Roma Tre University, Via della Vasca Navale 79, I-00146 Roma, Italy
| | - Maria Marino
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146 Roma, Italy.
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28
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Yang Y, Allemand F, Guca E, Vallone B, Delbecq S, Roumestand C. (1)H, (15)N and (13)C backbone resonance assignments of murine met- neuroglobin, free and in complex with cyanide. Biomol NMR Assign 2015; 9:153-156. [PMID: 24830543 DOI: 10.1007/s12104-014-9563-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 05/06/2014] [Indexed: 06/03/2023]
Abstract
Neuroglobin is a globin present in the brain and retina of mammals. This hexacoordinated hemoprotein binds small diatomic molecules, albeit with lower affinity compared with other globins. We report here the resonance assignment of murine met-Neuroglobine, free and in complex with cyanide.
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Affiliation(s)
- Yinshan Yang
- CNRS UMR 5048, Centre de Biochimie Structurale, Université de Montpellier I and II, 29 rue de Navacelles, 34090, Montpellier Cedex, France
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29
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Abstract
A needlestick injury to cerebral cortex causes immediate damage along the track of the needle (haemorrhage, cell death) and sequelae (the formation of amyloid-positive plaques, extracellular deposits of hyperphosphorylated tau protein, microglial proliferation, astrogliosis) that are long lasting, and mimic the neuropathology associated with Alzheimer's disease. We report here that the same injury also elicits a distinctive response in the cortex flanking (up to 1mm from) the direct injury. Needlestick injury was made in the neo- and hippocampal cortex of young (3 months) healthy Sprague-Dawley rats. After survival times of up to 7d, the response of the cortex was assessed with histology, immunohistochemistry and stereology. Uptake of FluoroJade B at 1d survival and labelling for 4-hydroxynonenal (4-HNE) gave measures of membrane damage; labelling for 8-hydroxy-2'-deoxyguanosine (8-OHDG) gave a measure of DNA damage, and labelling with the AT8 antibody gave a measure of the hyperphosphorylation of tau. Two probes, for neuroglobin and basic fibroblast growth factor (FGF-2), gave measures of a self-protective response in the tissue. Results indicate that neurones in the flanking region are damaged by the nearby lesion, and within 1d upregulate self-protective mechanisms. Over the next 6d survival, evidence of neuronal damage reduces markedly. In summary, cells in the region flanking a lesion are stressed by the lesion, and react to the stress with a self-protective response, which prevents their death. This response may be an important, previously unrecognised feature of brain tissue close to a focus of stress, such as a microhaemorrhage.
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Affiliation(s)
- Sivaraman Purushothuman
- Discipline of Physiology and Bosch Institute, School of Medical Sciences, Faculty of Medicine, The University of Sydney, Camperdown, NSW 2006, Australia; Discipline of Clinical Ophthalmology & Save Sight Institute, The University of Sydney & Sydney Eye Hospital, Sydney NSW 2000, Australia.
| | - Jonathan Stone
- Discipline of Physiology and Bosch Institute, School of Medical Sciences, Faculty of Medicine, The University of Sydney, Camperdown, NSW 2006, Australia.
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30
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Kuleva NV, Krasovskaya IE. [THE ROLE OF HEME-CONTAINING GLOBINS IN HYPOXIC NO-SIGNALING OF VERTEBRATE CELLS]. Tsitologiia 2015; 57:563-571. [PMID: 26591567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nitric oxide is one of the most important signaling molecule of living organisms. It may be produced by two ways: from arginine by means of NO-syntases and from nitrite by means of nitrite reductases. The last way is realized mostly at hypoxic state of organisms and heme-containing globins of vertebrates (hemoglobin, myoglobin, cytoglobin, neuroglobin) mediate the transformation of NO2 into NO by means of their nitrite reductase activities. Hypoxic NO-signaling depends on oxygen concentration and is important for exercise, vascular hypoxic vasodilation, myocardial preconditioning and angiogenesis. Data of scientific literature of last 15 years show that the nitrite-reductase activity of heme-containing globins was used for oxygen sensing and ROS/RNS defence at early stages of life evolution.
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Guo Y, Yuan H, Jiang L, Yang J, Zeng T, Xie K, Zhang C, Zhao X. Involvement of decreased neuroglobin protein level in cognitive dysfunction induced by 1-bromopropane in rats. Brain Res 2014; 1600:1-16. [PMID: 25557405 DOI: 10.1016/j.brainres.2014.12.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 11/27/2014] [Accepted: 12/10/2014] [Indexed: 12/30/2022]
Abstract
1-Bromopropane (1-BP) is used as a substitute for ozone-depleting solvents (ODS) in industrial applications. 1-BP could display central nervous system (CNS) neurotoxicity manifested by cognitive dysfunction. Neuroglobin (Ngb) is an endogenous neuroprotectant and is predominantly expressed in the nervous system. The present study aimed to investigate Ngb involvement in CNS neurotoxicity induced by 1-BP in rats. Male Wistar rats were randomly divided into 5 groups (n=14) and treated with 0, 100, 200, 400 and 800 mg/kg bw 1-BP, respectively, by gavage for consecutive 12 days. Rats displayed cognitive dysfunction dose-dependently through Morris water maze (MWM) test. Significant neuron loss in layer 5 of the prelimbic cortex (PL) was observed. Moreover, 1-BP decreased Ngb protein level in cerebral cortex and Ngb decrease was significantly positively correlated with cognitive dysfunction. Glutathione (GSH) content, GSH/oxidized glutathione (GSSG) ratio and glutamate cysteine ligase (GCL) activity decreased in cerebral cortex, coupled with the increase in GSSG content. GSH and GSH/GSSG ratio decrease were significantly positively correlated with cortical Ngb decrease. Additionally, levels of N-epsilon-hexanoyl-lysine (HEL) and 4-hydroxy-2-nonenal (4-HNE) modified proteins in cerebral cortex of 1-BP-treated rats increased significantly. In conclusion, it was suggested that 1-BP resulted in decreased endogenous neuroprotectant Ngb in cerebral cortex, which might play an important role in CNS neurotoxicity induced by 1-BP and that 1-BP-induced oxidative stress in cerebral cortex might partly be responsible for Ngb decrease.
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Affiliation(s)
- Ying Guo
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Hua Yuan
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Lulu Jiang
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Junlin Yang
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Tao Zeng
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Keqin Xie
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Cuili Zhang
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China
| | - Xiulan Zhao
- Institute of Toxicology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, Shandong, PR China.
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Okogwu OI, Xie P, Zhao Y, Fan H. Organ-dependent response in antioxidants, myoglobin and neuroglobin in goldfish (Carassius auratus) exposed to MC-RR under varying oxygen level. Chemosphere 2014; 112:427-434. [PMID: 25048936 DOI: 10.1016/j.chemosphere.2014.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 04/29/2014] [Accepted: 05/04/2014] [Indexed: 06/03/2023]
Abstract
Cyanobacterial bloom, a common phenomenon nowadays often results in the depletion of dissolved oxygen (hypoxia) and releases microcystin-RR (MC-RR) in the water. Information on the combined effects of MC-RR and hypoxia on the goldfish is lacking, therefore, this study is aimed at evaluating the effect of two doses of MC-RR on the antioxidants and globin mRNA of goldfish under normoxia, hypoxia and reoxygenation. The result showed that MC-RR at both doses (50 and 200 μg kg(-1) body weight) significantly (p<0.05) induced superoxide dismutase activities in the liver and kidney but catalase activities and total antioxidant capacity were low in these organs during hypoxia and reoxygenation compared to normoxia and control. Myoglobin and neuroglobin mRNAs in MC-RR group were significantly induced in the brain only and are believed to protect the brain from oxidative damage. However, other organs were unprotected and extensive damage was observed in the liver cells. Our results clearly demonstrated that MC-RR and hypoxia-reoxygenation transitions were synergistically harmful to the goldfish and could impair its adaptation to hypoxia, especially during reoxygenation.
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Affiliation(s)
- Okechukwu Idumah Okogwu
- Department of Applied Biology, Ebonyi State University, PMB 53, Abakaliki, Ebonyi State, Nigeria; Donghu Experimental Station of Lake Ecosystems, State Key Laboratory for Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Ping Xie
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory for Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Yanyan Zhao
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory for Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Huihui Fan
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory for Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
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Song X, Xu R, Xie F, Zhu H, Zhu J, Wang X. Hemin offers neuroprotection through inducing exogenous neuroglobin in focal cerebral hypoxic-ischemia in rats. Int J Clin Exp Pathol 2014; 7:2163-2171. [PMID: 24966924 PMCID: PMC4069941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 04/10/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To investigate the inducible effect of hemin on exogenous neuroglobin (Ngb) in focal cerebral hypoxic-ischemia in rats. METHODS 125 healthy SD rats were randomly divided into five groups: sham-operation control group, operation group, hemin treatment group, exogenous Ngb treatment group, and hemin and exogenous Ngb joint treatment group. Twenty-four hours after focal cerebral hypoxic-ischemia, Ngb expression was evaluated by immunocytochemistry, RT-PCR, and western blot analyses, while the brain water content and infarct volume were examined. RESULTS Immunocytochemistry, RT-PCR, and western blot analyses showed more pronounced Ngb expression in the hemin and exogenous Ngb joint operation group than in the hemin or exogenous Ngb individual treatment groups, thus producing significant differences in brain water content and infarct volume (p<0.05). CONCLUSIONS Hemin may be beneficial in protecting against focal cerebral hypoxic-ischemia through inducing the expression of exogenous Ngb.
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MESH Headings
- Animals
- Brain/drug effects
- Brain/metabolism
- Brain/pathology
- Brain Edema/metabolism
- Brain Edema/pathology
- Brain Edema/prevention & control
- Cytoprotection
- Disease Models, Animal
- Gene Expression Regulation
- Gene Transfer Techniques
- Genetic Therapy/methods
- Globins/biosynthesis
- Globins/genetics
- Hemin/pharmacology
- Hypoxia-Ischemia, Brain/genetics
- Hypoxia-Ischemia, Brain/metabolism
- Hypoxia-Ischemia, Brain/pathology
- Hypoxia-Ischemia, Brain/prevention & control
- Infarction, Middle Cerebral Artery/genetics
- Infarction, Middle Cerebral Artery/metabolism
- Infarction, Middle Cerebral Artery/pathology
- Infarction, Middle Cerebral Artery/therapy
- Male
- Nerve Tissue Proteins/biosynthesis
- Nerve Tissue Proteins/genetics
- Neuroglobin
- Neuroprotective Agents/pharmacology
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Time Factors
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Affiliation(s)
- Xue Song
- Department of Neurosurgery, First Affiliated Hospital of Chongqing Medical UniversityChongqing, 400016, China
| | - Rui Xu
- Department of Neurosurgery, First Affiliated Hospital of Chongqing Medical UniversityChongqing, 400016, China
| | - Fei Xie
- Department of Neurosurgery, First Affiliated Hospital of Chongqing Medical UniversityChongqing, 400016, China
| | - Haiyuan Zhu
- Department of Neurosurgery, First Affiliated Hospital of Chongqing Medical UniversityChongqing, 400016, China
| | - Ji Zhu
- Department of Neurosurgery, First Affiliated Hospital of Chongqing Medical UniversityChongqing, 400016, China
| | - Xin Wang
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, Massachusetts 02115, USA
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Di Pietro V, Lazzarino G, Amorini AM, Tavazzi B, D'Urso S, Longo S, Vagnozzi R, Signoretti S, Clementi E, Giardina B, Lazzarino G, Belli A. Neuroglobin expression and oxidant/antioxidant balance after graded traumatic brain injury in the rat. Free Radic Biol Med 2014; 69:258-64. [PMID: 24491879 DOI: 10.1016/j.freeradbiomed.2014.01.032] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 01/07/2014] [Accepted: 01/24/2014] [Indexed: 11/29/2022]
Abstract
Neuroglobin is a neuron-specific hexacoordinated globin capable of binding various ligands, including O2, NO, and CO, the biological function of which is still uncertain. Various studies seem to indicate that neuroglobin is a neuroprotective agent when overexpressed, acting as a potent inhibitor of oxidative and nitrosative stress. In this study, we evaluated the pathophysiological response of the neuroglobin gene and protein expression in the cerebral tissue of rats sustaining traumatic brain injury of differing severity, while simultaneously measuring the oxidant/antioxidant balance. Two levels of trauma (mild and severe) were induced in anesthetized animals using the weight-drop model of diffuse axonal injury. Rats were then sacrificed at 6, 12, 24, 48, and 120 h after traumatic brain injury, and the gene and protein expression of neuroglobin and the concentrations of malondialdehyde (as a parameter representative of reactive oxygen species-mediated damage), nitrite + nitrate (indicative of NO metabolism), ascorbate, and glutathione (GSH) were determined in the brain tissue. Results indicated that mild traumatic brain injury, although causing a reversible increase in oxidative/nitrosative stress (increase in malondialdehyde and nitrite + nitrate) and an imbalance in antioxidants (decrease in ascorbate and GSH), did not induce any change in neuroglobin. Conversely, severe traumatic brain injury caused an over nine- and a fivefold increase in neuroglobin gene and protein expression, respectively, as well as a remarkable increase in oxidative/nitrosative stress and depletion of antioxidants. The results of this study, showing a lack of effect in mild traumatic brain injury as well as asynchronous time course changes in neuroglobin expression, oxidative/nitrosative stress, and antioxidants in severe traumatic brain injury, do not seem to support the role of neuroglobin as an endogenous neuroprotective antioxidant agent, at least under pathophysiological conditions.
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Affiliation(s)
- Valentina Di Pietro
- Neurotrauma and Neurodegeneration Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Serafina D'Urso
- Department of Biology, Geology, and Environmental Sciences, Division of Biochemistry and Molecular Biology, University of Catania, 95125 Catania, Italy
| | - Salvatore Longo
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Roberto Vagnozzi
- Department of Biomedicine and Prevention, Section of Neurosurgery, University of Rome Tor Vergata, Rome, Italy
| | - Stefano Signoretti
- Division of Neurosurgery, Department of Neurosciences, Head and Neck Surgery, S. Camillo Hospital, Rome, Italy
| | - Elisabetta Clementi
- CNR Institute of "Chimica del riconoscimento molecolare," Catholic University of Rome, Rome, Italy
| | - Bruno Giardina
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biology, Geology, and Environmental Sciences, Division of Biochemistry and Molecular Biology, University of Catania, 95125 Catania, Italy.
| | - Antonio Belli
- Neurotrauma and Neurodegeneration Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
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Tiedke J, Thiel R, Burmester T. Molecular response of estuarine fish to hypoxia: a comparative study with ruffe and flounder from field and laboratory. PLoS One 2014; 9:e90778. [PMID: 24595439 PMCID: PMC3940940 DOI: 10.1371/journal.pone.0090778] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 02/05/2014] [Indexed: 11/18/2022] Open
Abstract
On a global scale, the frequencies and magnitudes of hypoxic events in coastal and estuarine waters have increased dramatically over the past 20 years. Fish populations are suitable indicators for the assessment of the quality of aquatic ecosystems, as they are omnipresent and often comprise a variety of different lifestyles and adaption strategies. We have investigated on the molecular level the impact of hypoxia on two fish species typical of European estuaries. We monitored the expression of eleven putatively hypoxia-responsive genes by means of quantitative real-time RT-PCR in brains, gills and hearts of the ruffe (Gymnocephalus cernua) and the flounder (Platichthys flesus). We first investigated the effect of naturally occurring hypoxia in the Elbe estuary. In a second approach, expression changes in the response to hypoxia were monitored under controlled laboratory conditions. The genes that showed the strongest effect were two respiratory proteins, myoglobin and neuroglobin, as well as the apoptosis enzyme caspase 3. As previously observed in other fish, myoglobin, which was considered to be muscle-specific, was found in brain and gills as well. Comparison of field and laboratory studies showed that--with the exception of the heart of flounder--that mRNA levels of the selected genes were about the same, suggesting that laboratory conditions reflect natural conditions. Likewise, trends of gene expression changes under hypoxia were the same, although hypoxia response was more pronounced in the Elbe estuary. In general, the flounder displayed a stronger response to hypoxia than the ruffe, suggesting that the flounder is more susceptible to hypoxia. The most pronounced differences were found among tissues within a species, demonstrating that hypoxia response is largely tissue-specific. In summary, our data suggest that laboratory experiments essentially mimic field data, but additional environmental factors enhance hypoxia response in nature.
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Affiliation(s)
- Jessica Tiedke
- Institute of Zoology and Zoological Museum, University of Hamburg, Hamburg, Germany
| | - Ralf Thiel
- Institute of Zoology and Zoological Museum, University of Hamburg, Hamburg, Germany
| | - Thorsten Burmester
- Institute of Zoology and Zoological Museum, University of Hamburg, Hamburg, Germany
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Gilerovich EG, Grigor'ev IP, Kirik OV, Alekseeva OS, Sukhorukova EG, Korzhevskiĭ DÉ. [ Neuroglobin distribution in the human cerebellar cortex (an immunohistochemical study)]. Morfologiia 2014; 146:75-77. [PMID: 25552092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Neuroglobin is a recently discovered heme-containing protein located predominantly in the mammalian brain. This paper for the first time presents the data on neuroglobin distribution in human cerbellum using immunohistochemistry. Neuroglobin immunoreactivity in the cerebellum was found in all the cases studied (n = 7), although its intensity varied. Distinct reaction was found in Purkinje cells and the areas of cerebellar glomeruli.
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Takahashi N, Watanabe S, Wakasugi K. Crucial roles of Glu60 in human neuroglobin as a guanine nucleotide dissociation inhibitor and neuroprotective agent. PLoS One 2013; 8:e83698. [PMID: 24376733 PMCID: PMC3871547 DOI: 10.1371/journal.pone.0083698] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 11/15/2013] [Indexed: 11/18/2022] Open
Abstract
Mammalian neuroglobin (Ngb) protects neuronal cells under conditions of oxidative stress. We previously showed that human Ngb acts as a guanine nucleotide dissociation inhibitor (GDI) for the α-subunits of heterotrimeric Gi/o proteins and inhibits reductions in cAMP concentration, leading to protection against cell death. In the present study, we created human E60Q Ngb mutant and clarified that Glu60 of human Ngb is a crucial residue for its GDI and neuroprotective activities. Moreover, we investigated structural and functional properties of several human Ngb mutants and demonstrated that the neuroprotective effect of human Ngb is due to its GDI activity and not due to its scavenging activity against reactive oxygen species.
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Affiliation(s)
- Nozomu Takahashi
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan
| | - Seiji Watanabe
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan
| | - Keisuke Wakasugi
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan
- * E-mail:
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Liu X, Gao Y, Yao H, Zhou L, Sun D, Wang J. Neuroglobin involvement in the course of arsenic toxicity in rat cerebellar granule neurons. Biol Trace Elem Res 2013; 155:439-46. [PMID: 24057451 DOI: 10.1007/s12011-013-9810-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 08/29/2013] [Indexed: 12/16/2022]
Abstract
Exposure to arsenic in drinking water results in a widespread environmental problem in the world, and the brain is a major target. Neuroglobin is a vertebrate heme protein regarded as playing neuroprotective role in hypoxia or oxidative stress. In this study, we investigated the toxic effects of sodium arsenite (NaAsO2) on primary cultured rat cerebellar granule neurons (CGNs) and detected neuroglobin (Ngb) expression in rat CGNs exposed to NaAsO2. Our results show that apoptosis was obviously induced by NaAsO2 treatment in rat CGNs by annexin V-fluorescein isothiocyanate assay. Intracellular reactive oxygen species generation increased significantly in the cells exposed to NaAsO2, and the apoptotic effects could be partially reversed by antioxidant N-acetyl-L-cysteine. Ngb protein and mRNA expression were significantly downregulated in rat CGNs shortly after NaAsO2 exposure and then upregulated after a longer time of exposure. Furthermore, mRNA expression changed more than protein expression and the toxic effect of NaAsO2 on Ngb expression is dose dependent. Higher Ngb expression was also detected in rat cerebellum, but not in other parts (cerebrum, hippocampus, and midbrain) of the brain exposed to NaAsO2 for 16 weeks. Taken together, cytotoxic effects of NaAsO2 on rat CGNs is induced at least partly by oxidative stress and Ngb may influence the course of arsenic toxicity in rat CGNs and rat cerebellum.
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Affiliation(s)
- Xiaona Liu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618104), Harbin Medical University, 157# Baojian Road, Harbin, 150081, People's Republic of China
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Raida Z, Hundahl CA, Nyengaard JR, Hay-Schmidt A. Neuroglobin over expressing mice: expression pattern and effect on brain ischemic infarct size. PLoS One 2013; 8:e76565. [PMID: 24098534 PMCID: PMC3788103 DOI: 10.1371/journal.pone.0076565] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 08/28/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Stroke is a major cause of death and severe disability, but effective treatments are limited. Neuroglobin, a neuronal heme-globin, has been advocated as a novel pharmacological target in combating stroke and neurodegenerative disorders based on cytoprotective properties. Using thoroughly validated antibodies and oligos, we give a detailed brain anatomical characterization of transgenic mice over expressing Neuroglobin. Moreover, using permanent middle artery occlusion the effect of elevated levels of Neuroglobin on ischemic damage was studied. Lastly, the impact of mouse strain genetic background on ischemic damage was investigated. PRINCIPAL FINDINGS A four to five fold increase in Neuroglobin mRNA and protein expression was seen in the brain of transgenic mice. A β-actin promoter was used to drive Neuroglobin over expression, but immunohistochemistry and in situ hybridization showed over expression to be confined to primarily the cortex, hippocampus, cerebellum, and only in neurons. The level and expression pattern of endogenous Neuroglobin was unaffected by insertion of the over expressing Ngb transgene. Neuroglobin over expression resulted in a significant reduction in infarct volume 24 hours after ischemia. Immunohistochemistry showed no selective sparing of Neuroglobin expressing cells in the ischemic core or penumbra. A significant difference in infarct volume was found between mice of the same strain, but from different colonies. SIGNIFICANCE In contrast to some previous reports, Neuroglobin over expression is not global but confined to a few well-defined brain regions, and only in neurons. This study confirms previous reports showing a correlation between reduced infarct volume and elevated Neuroglobin levels, but underlines the need to study the likely contribution from compensatory mechanisms to the phenotype following a genetic perturbation. We also stress, that care should be taken when comparing results where different mouse strains and colonies have been used due to large genetic background contribution to the observed phenotype.
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Affiliation(s)
- Zindy Raida
- Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- * E-mail: (ZR); (CAH); (AH-S)
| | - Christian Ansgar Hundahl
- Centre of Excellence for Translational Medicine, University of Tartu, Tartu, Estonia
- * E-mail: (ZR); (CAH); (AH-S)
| | - Jens R. Nyengaard
- Stereology and Electron Microscopy Laboratory, Centre for Stochastic Geometry and Advanced Bioimaging, Aarhus University, Aarhus, Denmark
| | - Anders Hay-Schmidt
- Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- * E-mail: (ZR); (CAH); (AH-S)
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Li SQ, Cao XD, Yu DS, Li Y. [Effects of hypoxia preconditioning on serum NGB and S-100B in patients with intracranial aneurysm surgery]. Sichuan Da Xue Xue Bao Yi Xue Ban 2013; 44:747-755. [PMID: 24325104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To study the clinical effects of hypoxia preconditioning (HPC) and its effects on serum neuroglobin (NGB) and S-100B level in the patients undergoing intracranial aneurysm surgery. METHODS Forty patients scheduled to intracranial aneurysm surgery were randomly.divided into 2 groups: HPC group (n= 20) and control group (n= 20). The patients in HPC group were treated with 3 cycles of deoxidation-reoxygenation after intubation. The time of deoxidation in each HPC cycle was recorded, while vital signs were also recorded in each corresponding time point. Blood samples were obtained from exsanguinate radial artery and jugular bulb section at the end of each HPC cycle and corresponding time points during operation to measure serum level of NGB and S100B protein and to analysis blood gas. RESULTS During HPC process, the patients in group HPC experienced mild hypoxia and CO2 retention. With the times of HPC increasing, CO2 retention degree became heavier (P<0. 05) while hypoxia improved, the patients need more time to make SpO2 from 100% to 90% (P<0. 05). From T2 to T4 (the end of the third reoxygenation, during skull opened and aneurysm dipped, skull closed), NGB in group HPC was higher than that in control (P<0. 05), but S-100B level was not different between HPC and control group (P>0. 05). CONCLUSION HPC could induce compensatory ability of the body to hypoxia, which might be related to the up-regulation of NGB expression.
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Affiliation(s)
- Shi-Qi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
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Singh S, Zhuo M, Gorgun FM, Englander EW. Overexpressed neuroglobin raises threshold for nitric oxide-induced impairment of mitochondrial respiratory activities and stress signaling in primary cortical neurons. Nitric Oxide 2013; 32:21-8. [PMID: 23587847 PMCID: PMC3816961 DOI: 10.1016/j.niox.2013.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/25/2013] [Accepted: 03/29/2013] [Indexed: 02/06/2023]
Abstract
Surges of nitric oxide compromise mitochondrial respiration primarily by competitive inhibition of oxygen binding to cytochrome c oxidase (complex IV) and are particularly injurious in neurons, which rely on oxidative phosphorylation for all their energy needs. Here, we show that transgenic overexpression of the neuronal globin protein, neuroglobin, helps diminish protein nitration, preserve mitochondrial function and sustain ATP content of primary cortical neurons challenged by extended nitric oxide exposure. Specifically, in transgenic neurons, elevated neuroglobin curtailed nitric oxide-induced alterations in mitochondrial oxygen consumption rates, including baseline oxygen consumption, consumption coupled with ATP synthesis, proton leak and spare respiratory capacity. Concomitantly, activation of genes involved in sensing and responding to oxidative/nitrosative stress, including the early-immediate c-Fos gene and the phase II antioxidant enzyme, heme oxygenase-1, was diminished in neuroglobin-overexpressing compared to wild-type neurons. Taken together, these differences reflect a lesser insult produced by similar concentrations of nitric oxide in neuroglobin-overexpressing compared to wild-type neurons, suggesting that abundant neuroglobin buffers nitric oxide and raises the threshold of nitric oxide-mediated injury in neurons.
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Affiliation(s)
- Shilpee Singh
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA
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Lin WP, Chen XW, Zhang LQ, Wu CY, Huang ZD, Lin JH. Effect of neuroglobin genetically modified bone marrow mesenchymal stem cells transplantation on spinal cord injury in rabbits. PLoS One 2013; 8:e63444. [PMID: 23658829 PMCID: PMC3642116 DOI: 10.1371/journal.pone.0063444] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 03/29/2013] [Indexed: 12/12/2022] Open
Abstract
Objective This study aims to investigate the potentially protective effect of neuroglobin (Ngb) gene-modified bone marrow mesenchymal stem cells (BMSCs) on traumatic spinal cord injury (SCI) in rabbits. Methods A lentiviral vector containing an Ngb gene was constructed and used to deliver Ngb to BMSCs. Ngb gene-modified BMSCs were then injected at the SCI sites 24 hours after SCI. The motor functions of the rabbits were evaluated by the Basso–Beattie–Bresnahan rating scale. Fluorescence microscopy, quantitative real-time PCRs, Western blots, malondialdehyde (MDA) tests, and terminal deoxynucleotidyltransferase-mediated UTP end labeling assays were also performed. Results Ngb expression in the Ngb-BMSC group increased significantly. A more significant functional improvement was observed in the Ngb-BMSC group compared with those in the other groups. Traumatic SCI seemingly led to an increase in MDA level and number of apoptotic cells, which can be prevented by Ngb-BMSC treatment. Conclusion This study demonstrates that Ngb gene-modified BMSCs can strengthen the therapeutic benefits of BMSCs in reducing secondary damage and improving the neurological outcome after traumatic SCI. Therefore, the combined strategy of BMSC transplantation and Ngb gene therapy can be used to treat traumatic SCI.
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Affiliation(s)
- Wen-Ping Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, People's Republic of China
| | - Xuan-Wei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
| | - Li-Qun Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
| | - Chao-Yang Wu
- Department of Orthopedic Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
| | - Zi-Da Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
| | - Jian-Hua Lin
- Department of Orthopedic Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
- * E-mail:
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Lechauve C, Augustin S, Roussel D, Sahel JA, Corral-Debrinski M. Neuroglobin involvement in visual pathways through the optic nerve. Biochim Biophys Acta 2013; 1834:1772-8. [PMID: 23639750 DOI: 10.1016/j.bbapap.2013.04.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/26/2013] [Accepted: 04/15/2013] [Indexed: 11/19/2022]
Abstract
Neuroglobin is a member of the globin superfamily proposed to be only expressed in neurons and involved in neuronal protection from hypoxia or oxidative stress. A significant fraction of the protein localizes within the mitochondria and is directly associated with mitochondrial metabolism and integrity. The retina is the site of the highest concentration for neuroglobin and has been reported to be up to 100-fold higher than in the brain. Since neuroglobin was especially abundant in retinal ganglion cell layer, we investigated its abundance in optic nerves. Remarkably in optic nerves, neuroglobin is observed, as expected, in retinal ganglion cell axon profiles but also astrocyte processes, in physiological conditions, possess high levels of the protein. Neuroglobin mRNA and protein levels are ~10-fold higher in optic nerves than in retinas, indicating an important accumulation of neuroglobin in these support cells. Additionally, neuroglobin levels increase in Müller cells during reactive gliosis in response to eye injury. This suggests the pivotal role of neuroglobin in retinal glia involved in neuronal support and/or healing. This article is part of a Special Issue entitled: Oxygen Binding and Sensing Proteins.
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Van Leuven W, Van Dam D, Moens L, De Deyn PP, Dewilde S. A behavioural study of neuroglobin-overexpressing mice under normoxic and hypoxic conditions. Biochim Biophys Acta 2013; 1834:1764-71. [PMID: 23612353 DOI: 10.1016/j.bbapap.2013.04.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 03/29/2013] [Accepted: 04/15/2013] [Indexed: 12/31/2022]
Abstract
Neuroglobin (Ngb), a neuron-specific heme-binding protein that binds O2, CO and NO reversibly, and promotes in vivo and in vitro cell survival after hypoxic and ischaemic insult. Although the mechanisms of this neuroprotection remain unknown, Ngb might play an important role in counteracting the adverse effects of ischaemic stroke and cerebral hypoxia. Several Ngb overexpressing mouse models have confirmed this hypothesis; however, these models were not yet exposed to in-depth behavioural characterisations. To investigate the potential changes in behaviour due to Ngb overexpression, heterozygous mice and wild type (WT) littermates were subjected to a series of cognitive and behavioural tests (i.e., the SHIRPA primary screening, the hidden-platform Morris water maze, passive avoidance learning, 47h cage activity, open field exploration, a dark-light transition box, an accelerating rotarod, a stationary beam, a wire suspension task and a gait test) under normoxic and hypoxic conditions. No significant behavioural differences were found between WT and Ngb-overexpressing mice at three months old. However, one-year-old Ngb-overexpressing mice travelled more distance on the stationary beam compared with WT littermates. This result shows that the constitutive overexpression of Ngb might counteract the endogenous decrease of Ngb in crucial brain regions such as the cerebellum, thereby counteracting age-induced neuromotor dysfunction. This article is part of a Special Issue entitled: Oxygen Binding and Sensing Proteins.
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Affiliation(s)
- Wendy Van Leuven
- Department of Biomedical Sciences, University of Antwerp, Universiteitsplein 1, Antwerp, Belgium.
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45
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Li MD, Li GL. [Recent advances in study of neuroglobin expression in retinal diseases]. Zhonghua Yan Ke Za Zhi 2013; 49:381-384. [PMID: 23900098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Neuroglobin (NGB) is widely exists in the retina and predominantly expressed in the plexiform layers and the inner segments. The physiological roles of NGB may include transportation of oxygen, protection against ischemia/hypoxia injury and oxidative stress, function as a redox-coupled sensor regulating the G-protein coupled transduction pathway, protection against neuronal apoptosis, and working as a terminal oxidase. Based on the function and distribution of NGB and the etiology and pathogenesis of retinal degeneration; it is possible that NGB may play a role in the development of retinal degeneration.
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Affiliation(s)
- Meng-da Li
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing 100730, China
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De Marinis E, Acaz-Fonseca E, Arevalo MA, Ascenzi P, Fiocchetti M, Marino M, Garcia-Segura LM. 17β-Oestradiol anti-inflammatory effects in primary astrocytes require oestrogen receptor β-mediated neuroglobin up-regulation. J Neuroendocrinol 2013. [PMID: 23190172 DOI: 10.1111/jne.12007] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Neuroglobin (Ngb), so named after its initial discovery in brain neurones, has received great attention as a result of its neuroprotective effects both in vitro and in vivo. Recently, we demonstrated that, in neurones, Ngb is a 17β-oestradiol (E(2) ) inducible protein that is pivotal for hormone-induced anti-apoptotic effects against H(2) O(2) toxicity. The involvement of Ngb in other brain cell populations, as well as in other neuroprotective effects of E(2) , is completely unknown at present. We demonstrate Ngb immunoreactivity in reactive astrocytes located in the proximity of a penetrating cortical injury in vivo and the involvement of Ngb in the E(2) -mediated anti-inflammatory effect in primary cortical astrocytes. Upon binding to oestrogen receptor (ER)β, E(2) enhances Ngb levels in a dose-dependent manner. Although with a lesser degree than E(2) , the pro-inflammatory stimulation with lipopolysaccharide (LPS) also induces the increase of Ngb protein levels via nuclear factor-(NF)κB signal(s). Moreover, a negative cross-talk between ER subtypes and NFκB signal(s) has been demonstrated. In particular, ERα-activated signals prevent the NFκB-mediated Ngb increase, whereas LPS impairs the ERβ-induced up-regulation of Ngb. Therefore, the co-expression of both ERα and ERβ is pivotal for mediating E(2) -induced Ngb expression in the presence of NFκB-activated signals. Interestingly, Ngb silencing prevents the effect of E(2) on the expression of inflammatory markers (i.e. interleukin 6 and interferon γ-inducible protein 10). Ngb can be regarded as a key mediator of the different protective effects of E(2) in the brain, including protection against oxidative stress and the control of inflammation, both of which are at the root of several neurodegenerative diseases.
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Affiliation(s)
- E De Marinis
- Department of Biology, University Roma Tre, Rome, Italy
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Giordano D, Boron I, Abbruzzetti S, Van Leuven W, Nicoletti FP, Forti F, Bruno S, Cheng CHC, Moens L, di Prisco G, Nadra AD, Estrin D, Smulevich G, Dewilde S, Viappiani C, Verde C. Biophysical characterisation of neuroglobin of the icefish, a natural knockout for hemoglobin and myoglobin. Comparison with human neuroglobin. PLoS One 2012; 7:e44508. [PMID: 23226490 PMCID: PMC3513292 DOI: 10.1371/journal.pone.0044508] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Accepted: 08/03/2012] [Indexed: 11/19/2022] Open
Abstract
The Antarctic icefish Chaenocephalus aceratus lacks the globins common to most vertebrates, hemoglobin and myoglobin, but has retained neuroglobin in the brain. This conserved globin has been cloned, over-expressed and purified. To highlight similarities and differences, the structural features of the neuroglobin of this colourless-blooded fish were compared with those of the well characterised human neuroglobin as well as with the neuroglobin from the retina of the red blooded, hemoglobin and myoglobin-containing, closely related Antarctic notothenioid Dissostichus mawsoni. A detailed structural and functional analysis of the two Antarctic fish neuroglobins was carried out by UV-visible and Resonance Raman spectroscopies, molecular dynamics simulations and laser-flash photolysis. Similar to the human protein, Antarctic fish neuroglobins can reversibly bind oxygen and CO in the Fe(2+) form, and show six-coordination by distal His in the absence of exogenous ligands. A very large and structured internal cavity, with discrete docking sites, was identified in the modelled three-dimensional structures of the Antarctic neuroglobins. Estimate of the free-energy barriers from laser-flash photolysis and Implicit Ligand Sampling showed that the cavities are accessible from the solvent in both proteins.Comparison of structural and functional properties suggests that the two Antarctic fish neuroglobins most likely preserved and possibly improved the function recently proposed for human neuroglobin in ligand multichemistry. Despite subtle differences, the adaptation of Antarctic fish neuroglobins does not seem to parallel the dramatic adaptation of the oxygen carrying globins, hemoglobin and myoglobin, in the same organisms.
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Affiliation(s)
| | - Ignacio Boron
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires, Argentina
| | - Stefania Abbruzzetti
- Department of Physics, University of Parma, NEST Istituto Nanoscienze-CNR, Parma, Italy
| | - Wendy Van Leuven
- Department of Biomedical Sciences, PPES, University of Antwerp, Universiteitsplein 1, Wilrijk, Belgium
| | - Francesco P. Nicoletti
- Dipartimento di Chimica “Ugo Schiff”, Università di Firenze, Sesto Fiorentino (FI), Italy
| | - Flavio Forti
- Facultat de Farmacia, Departament de Fisicoquímica and Institut de Biomedicina, Universitat de Barcelona, Barcelona, Spain
| | - Stefano Bruno
- Department of Biochemistry and Molecular Biology, University of Parma, Parma, Italy
| | - C-H. Christina Cheng
- Department of Animal Biology, University of Illinois, Urbana, Illinois, United States of America
| | - Luc Moens
- Department of Biomedical Sciences, PPES, University of Antwerp, Universiteitsplein 1, Wilrijk, Belgium
| | | | - Alejandro D. Nadra
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
- Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
| | - Darío Estrin
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
| | - Giulietta Smulevich
- Dipartimento di Chimica “Ugo Schiff”, Università di Firenze, Sesto Fiorentino (FI), Italy
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, Bari, Italy
| | - Sylvia Dewilde
- Department of Biomedical Sciences, PPES, University of Antwerp, Universiteitsplein 1, Wilrijk, Belgium
| | - Cristiano Viappiani
- Department of Physics, University of Parma, NEST Istituto Nanoscienze-CNR, Parma, Italy
| | - Cinzia Verde
- Institute of Protein Biochemistry, CNR, Naples, Italy
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Ramser K, Malinina E, Candefjord S. Resonance micro-Raman investigations of the rat medial preoptic nucleus: effects of a low-iron diet on the neuroglobin content. Appl Spectrosc 2012; 66:1454-1460. [PMID: 23231908 DOI: 10.1366/12-06670] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The aim of this study was to investigate the medial preoptic nucleus (MPN) of the anterior hypothalamus by resonance Raman spectroscopy (514.5 nm) to determine if it is possible to enhance the Raman scattering of hemoproteins in fresh brain tissue slices. The resonance effect was compared with near-infrared Raman spectra. Two groups of male Sprague Dawley rats were studied, one control group on a normal diet and one group on a low-iron diet to evoke iron deficiency. Each group consisted of four rats, 38-41 days old. The diets lasted for 11, 12, and 15 days. The MPN regions of brain tissue slices were analyzed by monitoring raw and pre-processed mean data, by cluster analysis, and by deriving difference spectra from pre-processed mean spectra. Cluster analysis of the resonance Raman spectra could identify different hemoprotein groups, namely, hemoglobin (Hb) and neuroglobin (Ngb). Spectra from randomly distributed spots revealed high Hb content, whereas Ngb was evenly distributed in the MPN. The different spectra showed a decrease of the Ngb and lipid content for the animals on the low-iron diet. The Ngb decrease was approximately 20%. The data show that resonance Raman spectroscopy is well suited to study hemoproteins in fresh brain tissue.
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Affiliation(s)
- Kerstin Ramser
- Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, 97187 Luleå, Sweden
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Abstract
Recent evidence suggests that limb ischemic preconditioning (LIP) protects neurons against cerebral ischemia-reperfusion injury. However, the mechanisms of LIP are not well understood. Neuroglobin (Ngb) is a recently discovered globin that affords protection against hypoxic/ischemic brain injury. This study was performed to investigate the role of Ngb in the neuroprotection of LIP against brain ischemia and the involvements of mitochondria in the process. The rat global brain ischemic model was used, and the CA1 hippocampus was selected as the observational target. Ngb expression was investigated by RT-PCR and Western blot. Neuropathological evaluation was performed by thionin staining. Mitochondrial membrane potential (Δψm), Na(+)-K(+)-ATPase activity, and ultrastructure were examined by flow cytometry, spectrophotometry, and transmission electron microscopy, respectively. We also used Ngb antisense oligodeoxynucleotides (AS-ODNs) and Ngb inducer hemin to inhibit or mimic the effect of LIP. We found that LIP significantly up-regulated Ngb expression and protected neurons against ischemia. Furthermore, LIP effectively improved deterioration in the Δψm, mitochondrial Na(+)-K(+)-ATPase activity, and ultrastructure induced by cerebral ischemia. These effects of LIP were inhibited partly by Ngb AS-ODNs and mimicked by hemin. It could be concluded that up-regulation of Ngb expression played an important role in the neuroprotection induced by LIP, and the Ngb-mediated neuroprotection of LIP was, at least partly, associated with mitochondria.
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Affiliation(s)
- Shu-Qin Li
- Department of Pathophysiology, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang, 050017, China
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Bai ZZ, Yang YZ, Jin GE, Ma L, Ge RL. Neurological adaptations to hypoxia in Tibetan antelope (Pantholops hodgsonii) with a view of molecular biology of respiratory globin- neuroglobin. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2012; 28:555-560. [PMID: 23581185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Neuroglobin (Ngb) is a respiratory protein that is preferentially expressed in brain of mouse and man. In this article, Tibetan antelope, living at altitude of 3 000-5 000 m for millions of years, was selected as the model of hypoxia-tolerant adaptation species. Using reverse transcription polymerase chain reaction (RT-PCR) and Western blot techniques, expression of Ngb gene was amplified and analyzed in antelope brain tissue. Our results showed that Ngb homology protein in Tibetan antelope was identified with more sequence similarity with cattle (96%), sheep (95%), and human (95%). We detected that there were some mutations occurred in the Open Reading Frame of Ngb in Tibetan antelope compared with sheep. Phylogenetic analysis of Ngb chain showed that it was closer to cattle than the others. This study suggests possible roles of central nervous system enriched Ngb in adaptation of Tibetan antelope to extremely high altitude.
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Affiliation(s)
- Zhen-Zhong Bai
- The Research Center for High Altitude Medicine, Medical School, Qinghai University, Xining 810001, China
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