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Stone J, Mitrofanis J, Johnstone DM, Robinson SR. Twelve protections evolved for the brain, and their roles in extending its functional life. Front Neuroanat 2023; 17:1280275. [PMID: 38020212 PMCID: PMC10657866 DOI: 10.3389/fnana.2023.1280275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
As human longevity has increased, we have come to understand the ability of the brain to function into advanced age, but also its vulnerability with age, apparent in the age-related dementias. Against that background of success and vulnerability, this essay reviews how the brain is protected by (by our count) 12 mechanisms, including: the cranium, a bony helmet; the hydraulic support given by the cerebrospinal fluid; the strategically located carotid body and sinus, which provide input to reflexes that protect the brain from blood-gas imbalance and extremes of blood pressure; the blood brain barrier, an essential sealing of cerebral vessels; the secretion of molecules such as haemopexin and (we argue) the peptide Aβ to detoxify haemoglobin, at sites of a bleed; autoregulation of the capillary bed, which stabilises metabolites in extracellular fluid; fuel storage in the brain, as glycogen; oxygen storage, in the haemoprotein neuroglobin; the generation of new neurones, in the adult, to replace cells lost; acquired resilience, the stress-induced strengthening of cell membranes and energy production found in all body tissues; and cognitive reserve, the ability of the brain to maintain function despite damage. Of these 12 protections, we identify 5 as unique to the brain, 3 as protections shared with all body tissues, and another 4 as protections shared with other tissues but specialised for the brain. These protections are a measure of the brain's vulnerability, of its need for protection. They have evolved, we argue, to maintain cognitive function, the ability of the brain to function despite damage that accumulates during life. Several can be tools in the hands of the individual, and of the medical health professional, for the lifelong care of our brains.
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Affiliation(s)
- Jonathan Stone
- Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
| | - John Mitrofanis
- Grenoble and Institute of Ophthalmology, Fonds de Dotation Clinatec, Université Grenoble Alpes, University College London, London, United Kingdom
| | - Daniel M. Johnstone
- School of Biomedical Sciences and Pharmacy, University of Newcastle and School of Medical Sciences, The University of Sydney, Camperdown, NSW, Australia
| | - Stephen R. Robinson
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, VIC, Australia
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2
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García-García F, Acosta-Hernández ME, Beltrán-Parrazal L, Rodríguez-Alba JC. The Role of Neuroglobin in the Sleep-Wake Cycle. Sleep Sci 2023; 16:e362-e367. [PMID: 38196764 PMCID: PMC10773511 DOI: 10.1055/s-0043-1772806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 11/23/2022] [Indexed: 01/11/2024] Open
Abstract
Neuroglobin (Ngb) is a protein expressed in the central and peripherical nervous systems of the vertebrate. The Ngb has different functions in neurons, including regulating O 2 homeostasis, oxidative stress, and as a neuroprotector after ischemia/hypoxia events. The Ngb is a hemoprotein of the globin family, structurally like myoglobin and hemoglobin. Ngb has higher expression in the cortex, hypothalamus, thalamus, brainstem, and cerebellum in mammals. Interestingly, Ngb immunoreactivity oscillates according to the sleep-wake cycle and decreases after 24 hours of sleep deprivation, suggesting that sleep homeostasis regulates Ngb expression. In addition, Ngb expresses in brain areas related to REM sleep regulation. Therefore, in the present review, we discuss the potential role of the Ngb in the sleep-wake regulation of mammals.
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Affiliation(s)
- Fabio García-García
- Instituto de Ciencias de la Salud, Departamento de Biomedicina, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | | | - Luis Beltrán-Parrazal
- Instituto de Investigaciones Cerebrales, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Juan Carlos Rodríguez-Alba
- Instituto de Ciencias de la Salud, Departamento de Biomedicina, Universidad Veracruzana, Xalapa, Veracruz, Mexico
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3
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Barreto GE. Repurposing of Tibolone in Alzheimer's Disease. Biomolecules 2023; 13:1115. [PMID: 37509151 PMCID: PMC10377087 DOI: 10.3390/biom13071115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/05/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
Alzheimer's disease (AD) is a debilitating neurodegenerative disease characterised by the accumulation of amyloid-beta and tau in the brain, leading to the progressive loss of memory and cognition. The causes of its pathogenesis are still not fully understood, but some risk factors, such as age, genetics, and hormones, may play a crucial role. Studies show that postmenopausal women have a higher risk of developing AD, possibly due to the decrease in hormone levels, especially oestrogen, which may be directly related to a reduction in the activity of oestrogen receptors, especially beta (ERβ), which favours a more hostile cellular environment, leading to mitochondrial dysfunction, mainly affecting key processes related to transport, metabolism, and oxidative phosphorylation. Given the influence of hormones on biological processes at the mitochondrial level, hormone therapies are of clinical interest to reduce the risk or delay the onset of symptoms associated with AD. One drug with such potential is tibolone, which is used in clinics to treat menopause-related symptoms. It can reduce amyloid burden and have benefits on mitochondrial integrity and dynamics. Many of its protective effects are mediated through steroid receptors and may also be related to neuroglobin, whose elevated levels have been shown to protect against neurological diseases. Its importance has increased exponentially due to its implication in the pathogenesis of AD. In this review, we discuss recent advances in tibolone, focusing on its mitochondrial-protective effects, and highlight how valuable this compound could be as a therapeutic alternative to mitigate the molecular pathways characteristic of AD.
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Affiliation(s)
- George E Barreto
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland
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4
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Di Rocco G, Bernini F, Battistuzzi G, Ranieri A, Bortolotti CA, Borsari M, Sola M. Hydrogen peroxide induces heme degradation and protein aggregation in human neuroglobin: roles of the disulfide bridge and hydrogen-bonding in the distal heme cavity. FEBS J 2023; 290:148-161. [PMID: 35866372 PMCID: PMC10087938 DOI: 10.1111/febs.16581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/05/2022] [Accepted: 07/20/2022] [Indexed: 01/14/2023]
Abstract
In the present study, human neuroglobin (hNgb) was found to undergo H2 O2 -induced breakdown of the heme center at a much slower rate than other globins, namely in the timescale of hours against minutes. We investigated how the rate of the process is affected by the Cys46/Cys55 disulfide bond and the network of non-covalent interactions in the distal heme side involving Tyr44, Lys67, the His64 heme iron axial ligand and the heme propionate-7. The rate is increased by the Tyr44 to Ala and Phe mutations; however the rate is lowered by Lys67 to Ala swapping. The absence of the disulfide bridge slows down the reaction further. Therefore, the disulfide bond-controlled accessibility of the heme site and the residues at position 44 and 67 affect the activation barrier of the reaction. Wild-type and mutated species form β-amyloid aggregates in the presence of H2 O2 producing globular structures. Furthermore, the C46A/C55A, Y44A, Y44F and Y44F/C46A/C55A variants yield potentially harmful fibrils. Finally, the nucleation and growth kinetics for the aggregation of the amyloid structures can be successfully described by the Finke-Watzky model.
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Affiliation(s)
- Giulia Di Rocco
- Department of Life Sciences, University of Modena and Reggio Emilia, Italy
| | - Fabrizio Bernini
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
| | - Gianantonio Battistuzzi
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
| | - Antonio Ranieri
- Department of Life Sciences, University of Modena and Reggio Emilia, Italy
| | | | - Marco Borsari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
| | - Marco Sola
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
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5
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Oamen HP, Romero Romero N, Knuckles P, Saarikangas J, Radman‐Livaja M, Dong Y, Caudron F. A rare natural lipid induces neuroglobin expression to prevent amyloid oligomers toxicity and retinal neurodegeneration. Aging Cell 2022; 21:e13645. [PMID: 35656861 PMCID: PMC9282837 DOI: 10.1111/acel.13645] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 03/10/2022] [Accepted: 05/10/2022] [Indexed: 11/29/2022] Open
Abstract
Most neurodegenerative diseases such as Alzheimer's disease are proteinopathies linked to the toxicity of amyloid oligomers. Treatments to delay or cure these diseases are lacking. Using budding yeast, we report that the natural lipid tripentadecanoin induces expression of the nitric oxide oxidoreductase Yhb1 to prevent the formation of protein aggregates during aging and extends replicative lifespan. In mammals, tripentadecanoin induces expression of the Yhb1 orthologue, neuroglobin, to protect neurons against amyloid toxicity. Tripentadecanoin also rescues photoreceptors in a mouse model of retinal degeneration and retinal ganglion cells in a Rhesus monkey model of optic atrophy. Together, we propose that tripentadecanoin affects p-bodies to induce neuroglobin expression and offers a potential treatment for proteinopathies and retinal neurodegeneration.
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Affiliation(s)
- Henry Patrick Oamen
- School of Biological and Behavioural SciencesQueen Mary University of LondonLondonUK
| | - Nathaly Romero Romero
- School of Biological and Behavioural SciencesQueen Mary University of LondonLondonUK
| | - Philip Knuckles
- Friedrich Miescher Institute for Biomedical ResearchBaselSwitzerland
| | - Juha Saarikangas
- Helsinki Institute of Life Science, HiLIFE, University of HelsinkiHelsinkiFinland
- Research Programme in Molecular and Integrative Biosciences, Faculty of Biological and Environmental SciencesUniversity of HelsinkiHelsinkiFinland
- Neuroscience Center, University of HelsinkiHelsinkiFinland
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6
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Gao Y, Wang B, Miao Y, Han Y. Serum Neuroglobin as a Potential Prognostic Biomarker for Cognitive Impairment After Intracerebral Hemorrhage. Front Neurol 2022; 13:885323. [PMID: 35463129 PMCID: PMC9021832 DOI: 10.3389/fneur.2022.885323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveStroke is closely related to dementia, but there are few prospective studies on cognitive decline after stroke in patients with cerebral hemorrhage. Neuroglobin is an oxygen-binding protein mainly expressed in brain neurons. The aim of our current study was to determine whether neuroglobin could serve as a biomarker for cognitive prognosis in patients with intracerebral hemorrhage (ICH).MethodsThree hundred and sixteen patients with ICH were consecutively enrolled in a prospective study. Baseline data such as age and gender of ICH patients on admission were recorded. Serum neuroglobin concentrations were determined by enzyme-linked immunosorbent assay (ELISA). All ICH patients 3 months after onset were divided into post-stroke cognitive impairment group (PSCI) and non-PSCI group according to MoCA assessment results.ResultsThe PSCI and Non-PSCI groups had serum neuroglobin concentrations of (4.7 ± 0.9) and (7.5 ± 1.1) ng/ml, respectively, with a statistically significant difference between the two groups (p < 0.05). Age, gender, LDL, FBG, SBP, DBP, NHISS, and Hematoma volume were found to be adversely connected with MoCA (p < 0.05), while education, HDL, and serum neuroglobin were found to be positively correlated with MoCA (p < 0.05). After controlling for baseline data, regression analysis revealed that serum neuroglobin was remained an efficient biomarker for predicting cognitive performance in individuals with ICH (p < 0.05). The diagnostic accuracy of blood neuroglobin concentration for PSCI in ICH patients was 72.6%, the sensitivity was 67.4%, and the specificity was 75.5%, according to receiver operating characteristic (ROC) curve analysis.ConclusionsSerum neuroglobin may serve as a potential biomarker to predict cognitive decline after ICH.
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Affiliation(s)
- Yu Gao
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Bo Wang
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Ye Miao
- Department of Neurosurgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yu Han
- Department of Emergency, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
- *Correspondence: Yu Han
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7
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Exertier C, Montemiglio LC, Freda I, Gugole E, Parisi G, Savino C, Vallone B. Neuroglobin, clues to function and mechanism. Mol Aspects Med 2021; 84:101055. [PMID: 34876274 DOI: 10.1016/j.mam.2021.101055] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 12/19/2022]
Abstract
Neuroglobin is expressed in vertebrate brain and belongs to a branch of the globin family that diverged early in evolution. Sequence conservation and presence in nervous cells of several taxa suggests a relevant role in the nervous system, with tight structural restraints. Twenty years after its discovery, a rich scientific literature provides convincing evidence of the involvement of neuroglobin in sustaining neuron viability in physiological and pathological conditions however, a full and conclusive picture of its specific function, or set of functions is still lacking. The difficulty of unambiguously assigning a precise mechanism and biochemical role to neuroglobin might arise from the participation to one or more cell mechanism that redundantly guarantee the functioning of the highly specialized and metabolically demanding central nervous system of vertebrates. Here we collect findings and hypotheses arising from recent biochemical, biophysical, structural, in cell and in vivo experimental work on neuroglobin, aiming at providing an overview of the most recent literature. Proteins are said to have jobs and hobbies, it is possible that, in the case of neuroglobin, evolution has selected for it more than one job, and support to cover for its occasional failings. Disentangling the mechanisms and roles of neuroglobin is thus a challenging task that might be achieved by considering data from different disciplines and experimental approaches.
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Affiliation(s)
- Cécile Exertier
- Dipartimento di Scienze Biochimiche "A. Rossi Fanelli", Sapienza, Università di Roma, P.le A. Moro 5, 00185, Rome, Italy
| | - Linda Celeste Montemiglio
- Institute of Molecular Biology and Pathology, National Research Council, P.le A. Moro 5, 00185, Rome, Italy
| | - Ida Freda
- Dipartimento di Scienze Biochimiche "A. Rossi Fanelli", Sapienza, Università di Roma, P.le A. Moro 5, 00185, Rome, Italy
| | - Elena Gugole
- Dipartimento di Scienze Biochimiche "A. Rossi Fanelli", Sapienza, Università di Roma, P.le A. Moro 5, 00185, Rome, Italy
| | - Giacomo Parisi
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, 00161, Rome, Italy
| | - Carmelinda Savino
- Institute of Molecular Biology and Pathology, National Research Council, P.le A. Moro 5, 00185, Rome, Italy.
| | - Beatrice Vallone
- Dipartimento di Scienze Biochimiche "A. Rossi Fanelli", Sapienza, Università di Roma, P.le A. Moro 5, 00185, Rome, Italy.
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8
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Gout J, Meuris F, Desbois A, Dorlet P. In vitro coordination of Fe-protoheme with amyloid β is non-specific and exhibits multiple equilibria. J Inorg Biochem 2021; 227:111664. [PMID: 34955310 DOI: 10.1016/j.jinorgbio.2021.111664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/20/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
In addition to copper and zinc, heme is thought to play a role in Alzheimer's disease and its metabolism is strongly affected during the course of this disease. Amyloid β, the peptide associated with Alzheimer's disease, was shown to bind heme in vitro with potential catalytic activity linked to oxidative stress. To date, there is no direct determination of the structure of this complex. In this work, we studied the binding mode of heme to amyloid β in different conditions of pH and redox state by using isotopically labelled peptide in combination with advanced magnetic and vibrational spectroscopic methods. Our results show that the interaction between heme and amyloid β leads to a variety of species in equilibrium. The formation of these species seems to depend on many factors suggesting that the binding site is neither very strong nor highly specific. In addition, our data do not support the currently accepted model where a water molecule is bound to the ferric heme as sixth ligand. They also exclude structural models mimicking a peroxidatic site in the amyloid β-Fe-protoheme complexes.
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Affiliation(s)
- Jérôme Gout
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Laboratoire Stress Oxydant et Détoxication, Gif-sur-Yvette, France
| | - Floriane Meuris
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Laboratoire Stress Oxydant et Détoxication, Gif-sur-Yvette, France
| | - Alain Desbois
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Laboratoire Stress Oxydant et Détoxication, Gif-sur-Yvette, France.
| | - Pierre Dorlet
- CNRS, Aix-Marseille Université, BIP, IMM, Marseille, France; Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Laboratoire Stress Oxydant et Détoxication, Gif-sur-Yvette, France.
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9
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Huang W, Bartosch AM, Xiao H, Maji S, Youth EHH, Flowers X, Leskinen S, Tomljanovic Z, Iodice G, Boyett D, Spinazzi E, Menon V, McGovern RA, McKhann GM, Teich AF. An immune response characterizes early Alzheimer's disease pathology and subjective cognitive impairment in hydrocephalus biopsies. Nat Commun 2021; 12:5659. [PMID: 34580300 PMCID: PMC8476497 DOI: 10.1038/s41467-021-25902-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 09/06/2021] [Indexed: 11/21/2022] Open
Abstract
Early Alzheimer's disease (AD) pathology can be found in cortical biopsies taken during shunt placement for Normal Pressure Hydrocephalus. This represents an opportunity to study early AD pathology in living patients. Here we report RNA-seq data on 106 cortical biopsies from this patient population. A restricted set of genes correlate with AD pathology in these biopsies, and co-expression network analysis demonstrates an evolution from microglial homeostasis to a disease-associated microglial phenotype in conjunction with increasing AD pathologic burden, along with a subset of additional astrocytic and neuronal genes that accompany these changes. Further analysis demonstrates that these correlations are driven by patients that report mild cognitive symptoms, despite similar levels of biopsy β-amyloid and tau pathology in comparison to patients who report no cognitive symptoms. Taken together, these findings highlight a restricted set of microglial and non-microglial genes that correlate with early AD pathology in the setting of subjective cognitive decline.
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Affiliation(s)
- Wenrui Huang
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Anne Marie Bartosch
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Harrison Xiao
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Suvrajit Maji
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Elliot H H Youth
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Xena Flowers
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Sandra Leskinen
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
- Department of Neurology, Columbia University, New York, NY, USA
| | - Zeljko Tomljanovic
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Gail Iodice
- Department of Neurosurgery, Columbia University, New York, NY, USA
| | - Deborah Boyett
- Department of Neurosurgery, Columbia University, New York, NY, USA
| | | | - Vilas Menon
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
- Department of Neurology, Columbia University, New York, NY, USA
| | - Robert A McGovern
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA
| | - Guy M McKhann
- Department of Neurosurgery, Columbia University, New York, NY, USA
| | - Andrew F Teich
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA.
- Department of Neurology, Columbia University, New York, NY, USA.
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El Khoury Y, Schirer A, Patte-Mensah C, Klein C, Meyer L, Rataj-Baniowska M, Bernad S, Moss D, Lecomte S, Mensah-Nyagan AG, Hellwig P. Raman Imaging Reveals Accumulation of Hemoproteins in Plaques from Alzheimer's Diseased Tissues. ACS Chem Neurosci 2021; 12:2940-2945. [PMID: 34292705 DOI: 10.1021/acschemneuro.1c00289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Hemes have been suggested to play a central role in Alzheimer's disease since they show high peroxidase reactivity when bound to amyloid β peptides, leading to the production of reactive oxygen species. Here we used Fourier transform infrared and Raman imaging on Alzheimer's diseased mice and human brain tissue. Our finding suggests the accumulation of hemes in the senile plaques of both murine and human samples. We compared the Raman signature of the plaques to the ones of various hemeoproteins and to the hemin-Aβ-42 complex. The detected Raman signature of the plaques does not allow identifying the type of heme accumulating in the plaques.
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Affiliation(s)
- Youssef El Khoury
- Laboratoire de Bioélectrochimie et Spectroscopie, UMR 7140, Chimie De La Matière Complexe, Université de Strasbourg-CNRS, 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - Alicia Schirer
- Laboratoire de Bioélectrochimie et Spectroscopie, UMR 7140, Chimie De La Matière Complexe, Université de Strasbourg-CNRS, 4 Rue Blaise Pascal, 67081 Strasbourg, France
| | - Christine Patte-Mensah
- Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 1 Rue Eugène Boeckel, 67000 Strasbourg, France
| | - Christian Klein
- Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 1 Rue Eugène Boeckel, 67000 Strasbourg, France
| | - Laurence Meyer
- Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 1 Rue Eugène Boeckel, 67000 Strasbourg, France
| | - Monika Rataj-Baniowska
- Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 1 Rue Eugène Boeckel, 67000 Strasbourg, France
| | - Sophie Bernad
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, 91405 Orsay, France
| | - David Moss
- Synchrotron Light Source ANKA, Karlsruhe Research Center, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sophie Lecomte
- Chimie Biologie des Membranes et Nanoobjets, UMR 5248, Université de Bordeaux-CNRS, 14 Allée Geoffroy St. Hilaire, 33600 Pessac, France
| | - Ayikoe-Guy Mensah-Nyagan
- Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 1 Rue Eugène Boeckel, 67000 Strasbourg, France
| | - Petra Hellwig
- Laboratoire de Bioélectrochimie et Spectroscopie, UMR 7140, Chimie De La Matière Complexe, Université de Strasbourg-CNRS, 4 Rue Blaise Pascal, 67081 Strasbourg, France
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11
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Nisha, Sarkar S. Downregulation of glob1 suppresses pathogenesis of human neuronal tauopathies in Drosophila by regulating tau phosphorylation and ROS generation. Neurochem Int 2021; 146:105040. [PMID: 33865914 DOI: 10.1016/j.neuint.2021.105040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/24/2021] [Accepted: 03/29/2021] [Indexed: 12/30/2022]
Abstract
Human tauopathies represent a group of neurodegenerative disorders, characterized by abnormal hyperphosphorylation and aggregation of tau protein, which ultimately cause neurodegeneration. The aberrant tau hyperphosphorylation is mostly attributed to the kinases/phosphatases imbalance, which is majorly contributed by the generation of reactive oxygen species (ROS). Globin(s) represent a well-conserved group of proteins which are involved in O2 management, regulation of cellular ROS in different cell types. Similarly, Drosophila globin1 (a homologue of human globin) with its known roles in oxygen management and development of nervous system exhibits striking similarities with the mammalian neuroglobin. Several recent evidences support the hypothesis that neuroglobins are associated with Alzheimer's disease pathogenesis. We herein noted that targeted expression of human-tau induces the cellular level of Glob1 protein in Drosophila tauopathy models. Subsequently, RNAi mediated restored level of Glob1 restricts the pathogenic effect of human-tau by minimizing its hyperphosphorylation via GSK-3β/p-Akt and p-JNK pathways. In addition, it also activates the Nrf2-keap1-ARE cascade to stabilize the tau-mediated increased level of ROS. These two parallel cellular events provide a significant rescue against human tau-mediated neurotoxicity in the fly models. For the first time we report a direct involvement of an oxygen sensing globin gene in tau etiology. In view of the fact that human genome encodes for the multiple Globin proteins including a nervous system specific neuroglobin; and therefore, our findings may pave the way to investigate if the conserved oxygen sensing globin gene(s) can be exploited in devising novel therapeutic strategies against tauopathies.
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Affiliation(s)
- Nisha
- Department of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021, India
| | - Surajit Sarkar
- Department of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021, India.
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12
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Ciccone L, Nencetti S, Socci S, Orlandini E. Neuroglobin and neuroprotection: the role of natural and synthetic compounds in neuroglobin pharmacological induction. Neural Regen Res 2021; 16:2353-2358. [PMID: 33907006 PMCID: PMC8374583 DOI: 10.4103/1673-5374.300981] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Neuroglobin (Ngb) is a 17 kDa monomeric hexa-coordinated heme protein belonging to the globin family. Ngb is mainly expressed in neurons of the central and peripheral nervous system, although moderate levels of Ngb have been detected in non-nervous tissues. In the past decade, Ngb has been studied for its neuroprotective role in a large number of neurological disorders such as Alzheimer's disease, Huntington's disease, brain ischemia and hypoxia. This review discusses and summarizes the natural compounds and the small synthetic molecules capable of modulating Ngb expression that exhibits a protective role against various neurodegenerative diseases.
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Affiliation(s)
- Lidia Ciccone
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | - Simone Socci
- Department of Earth Sciences, University of Pisa, Pisa, Italy
| | - Elisabetta Orlandini
- Department of Earth Sciences, University of Pisa; Research Center "E. Piaggio," University of Pisa, Pisa, Italy
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13
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Sleep Recovery Restored Neuroglobin Immunoreactivity in Rat LDTg-PPTg Nuclei. SLEEP DISORDERS 2020; 2020:8353854. [PMID: 32774927 PMCID: PMC7396083 DOI: 10.1155/2020/8353854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/28/2020] [Accepted: 07/08/2020] [Indexed: 12/29/2022]
Abstract
Neuroglobin (Ngb) is a protein member of the globin family, expressed mainly in the central and peripheral nervous system. It is involved in the transport of oxygen in response to hypoxic/ischemic and oxidative stress-related insults. We recently showed that sleep deprivation reduces the number of Ngb-positive cells in brain areas related to sleep. However, it is poorly understood whether Ngb expression correlates with sleep occurrence. Here, we aimed to study if sleep recovery produced by 24 h of sleep deprivation restores the number of Ngb-positive cells in the pedunculopontine tegmentum (PPTg) and laterodorsal tegmentum (LDTg), brain areas related to sleep-wake regulation. Male Wistar rats were sleep-deprived for 24 h using the gentle handling method. After sleep deprivation, rats were allowed a sleep recovery for three or six hours. After sleep recovery, rats were euthanized, and their brains processed for Ngb immunohistochemistry. We found that a 3 h sleep recovery is enough to restore the number of Ngb-positive cells in all the analyzed areas. A similar result was observed after a 6 h sleep recovery. These results suggest that Ngb expression is sleep dependent. We suggest that Ngb expression is involved in preventing cell damage due to prolonged wakefulness.
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14
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Non-Methylation-Linked Mechanism of REST-Induced Neuroglobin Expression Impacts Mitochondrial Phenotypes in a Mouse Model of Amyotrophic Lateral Sclerosis. Neuroscience 2019; 412:233-247. [DOI: 10.1016/j.neuroscience.2019.05.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 12/11/2022]
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15
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Liu N, Yu Z, Xun Y, Shu P, Yue Y, Yuan S, Jiang Y, Huang Z, Yang X, Feng X, Xiang S, Wang X. Amyloid-β25-35 Upregulates Endogenous Neuroprotectant Neuroglobin via NFκB Activation in vitro. J Alzheimers Dis 2019; 64:1163-1174. [PMID: 30010125 DOI: 10.3233/jad-180163] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Neuroglobin (Ngb) has been reported to be increased in early and moderately advanced Alzheimer's disease (AD) stages but declined in the severe stage. However, its regulatory mechanisms and pathophysiological roles in the disease remain to be defined. In this study, we found that Ngb expression was significantly upregulated by low dose Aβ25-35, the neurotoxic fragment of Aβ1 - 40 and Aβ1 - 42, but was not further increased by a higher dose of Aβ25-35. Mutation analysis and supershift assay demonstrated that transcription factor Nuclear Factor κB (NFκB), κB2 and κB3 sites located in mouse Ngb promoter region were involved in dynamic regulation of Ngb expression in response to different doses of Aβ25-35 stimulation. In addition, we found that suppression of endogenous Ngb expression exacerbated Aβ25-35-induced neuronal cell death and mitochondrial dysfunction. Our results indicate that endogenous Ngb expression may be upregulated by low dose Aβ25-35, which is responsible for protecting against Aβ25-35-mediated neurotoxicity. These experimental findings suggest that upregulation of endogenous Ngb expression might be an effective intervention approach for AD.
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Affiliation(s)
- Ning Liu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China.,Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Zhanyang Yu
- Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Yu Xun
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Pan Shu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yiwei Yue
- School of Clinical Medicine, Zhengzhou University, Zhengzhou, China.,Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shishan Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Yinghua Jiang
- Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Zixuan Huang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Xing Feng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiaoying Wang
- Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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16
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Chen L, Wang L, Zhuo Q, Zhang Q, Chen F, Li L, Lin L. Effect of Shenmai injection on cognitive function after cardiopulmonary bypass in cardiac surgical patients: a randomized controlled trial. BMC Anesthesiol 2018; 18:142. [PMID: 30309327 PMCID: PMC6182819 DOI: 10.1186/s12871-018-0604-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 09/24/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Postoperative cognitive dysfunction (POCD) is a common complication after cardiac surgery that influences the clinical outcomes and quality of life of patients. This study aimed to evaluate the effects of Shenmai injection (SMI) on POCD of patients who underwent cardiac valve replacement under cardiopulmonary bypass (CPB). METHODS This prospective, randomized, controlled trial was conducted from September 2014 to January 2017. Eighty-eight patients receiving cardiac valve replacement under CPB were randomized into the control (C) or the SMI (S) group. SMI (0.6 mL/kg) was administered intravenously from the time of anesthesia induction to the beginning of CPB. Cognitive function was assessed at 3 days before surgery and 3 days, 7 days, and 1 month after surgery using the Beijing version of the Montreal Cognitive Assessment (MoCA-BJ) score. The serum levels of neuroglobin (Ngb), hypoxia-inducible factor-1α (HIF-1α), and neuron-specific enolase (NSE) were measured at 30 min after induction (T0), immediately after the endonasal temperature rewarmed to 36 °C (T1), and 1 h (T2), 6 h (T3), 24 h (T4), 48 h (T5), and 72 h (T6) after CPB. RESULTS Compared with the baseline values at T0, the serum Ngb levels in group C were significantly decreased at T1-2 and then increased at T3-6, while the levels in group S were decreased at T1-2 and increased at T4-6, compared to group C (p < 0.05). The serum HIF-1α levels at T1-4 and the serum NSE levels at T1-6 were significantly increased in both groups (p < 0.05). The serum levels of Ngb at T3, HIF-1α at T1-3, and NSE at T3-4,6 were lower in group S, compared to group C (p < 0.01). The MoCA-BJ scores were decreased at 3 and 7 days after surgery in both groups, and the MoCA-BJ scores in group S were higher than those in group C at 3 and 7 days after surgery (p < 0.01). CONCLUSION Cognitive function is impaired postoperatively in patients who have undergone cardiac valve replacement under CPB. In addition, treatment with the traditional Chinese medicine SMI decreases the serum levels of Ngb, HIF-1α, and NSE as well as attenuates cognitive dysfunction. TRIAL REGISTRATION This trial was registered with Clinicaltrials.gov as ChiCTR-TRC-14004373 on March 11, 2014.
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Affiliation(s)
- Lei Chen
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Liangrong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Qian Zhuo
- Wenzhou People's Hospital, Wenzhou, Zhejiang Province, China
| | - Qiong Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Feifei Chen
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Liling Li
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Lina Lin
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
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17
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Gan SY, Wong LZ, Wong JW, Tan EL. Fucosterol exerts protection against amyloid β-induced neurotoxicity, reduces intracellular levels of amyloid β and enhances the mRNA expression of neuroglobin in amyloid β-induced SH-SY5Y cells. Int J Biol Macromol 2018; 121:207-213. [PMID: 30300695 DOI: 10.1016/j.ijbiomac.2018.10.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/01/2018] [Accepted: 10/05/2018] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that leads to progressive loss of neurons which often results in deterioration of memory and cognitive function. The development of AD is highly associated with the formation of senile plaques and neurofibrillary tangles. Amyloid β (Aβ) induces neurotoxicity and contributes to the development of AD. Recent evidences also highlighted the importance of neuroglobin (Ngb) in ameliorating AD. This study assessed the ability of fucosterol, a phytosterol found in brown alga, in protecting SH-SY5Y cells against Aβ-induced neurotoxicity. Its effects on the mRNA levels of APP and Ngb as well as the intracellular Aβ levels were also determined in Aβ-induced SH-SY5Y cells. SH-SY5Y cells were exposed to fucosterol prior to Aβ treatment. The effect on apoptosis was determined using Annexin V FITC staining and mRNA expression was studied using RT-PCR. Flow cytometry confirmed the protective effects of fucosterol on SH-SY5Y cells against Aβ-induced apoptosis. Pretreatment with fucosterol increased the Ngb mRNA levels but reduced the levels of APP mRNA and intracellular Aβ in Aβ-induced SH-SY5Y cells. These observations demonstrated the protective properties of fucosterol against Aβ-induced neurotoxicity in neuronal cells.
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Affiliation(s)
- Sook Yee Gan
- Department of Life Science, School of Pharmacy, International Medical University, 126 Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia.
| | - Li Zhe Wong
- School of Postgraduate Studies, International Medical University, Jalan Jalil Perkasa 19, 57000 Kuala Lumpur, Malaysia
| | - Jia Wun Wong
- BPharm, School of Pharmacy, International Medical University, 126 Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Eng Lai Tan
- Department of Life Science, School of Pharmacy, International Medical University, 126 Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
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18
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Van Acker ZP, Luyckx E, Dewilde S. Neuroglobin Expression in the Brain: a Story of Tissue Homeostasis Preservation. Mol Neurobiol 2018; 56:2101-2122. [DOI: 10.1007/s12035-018-1212-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 06/26/2018] [Indexed: 12/19/2022]
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19
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Neuroglobin boosts axon regeneration during ischemic reperfusion via p38 binding and activation depending on oxygen signal. Cell Death Dis 2018; 9:163. [PMID: 29416029 PMCID: PMC5833339 DOI: 10.1038/s41419-017-0260-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/17/2017] [Accepted: 12/21/2017] [Indexed: 11/08/2022]
Abstract
Cerebral ischemia causes severe cell death or injury including axon breakdown or retraction in the brain. Axon regeneration is crucial for the functional recovery of injured neurons or brains after ischemia/reperfusion (I/R); however, this process has been proved extremely difficult in adult brains and there is still no effective therapy for it. Here we reported that neuroglobin (Ngb), a novel oxygen-binding or sensor protein existing predominantly in neurons or brains, functions as a driving factor for axon regeneration during I/R. Ngb was upregulated and accumulated in growth cones of ischemic neurons in primary cultures, rat, and human brains, correlating positively to the elevation of axon-regeneration markers GAP43, neurofilament-200, and Tau-1. Ngb overexpression promoted while Ngb knockdown suppressed axon regeneration as well as GAP43 expression in neurons during oxygen-glucose deprivation/reoxygenation (OGD/Re). By using specific pharmacological inhibitors, we identified p38 MAPK as the major downstream player of Ngb-induced axon regeneration during OGD/Re. Mechanistically, Ngb directly bound to and activated p38 in neurons upon OGD/Re. Serial truncation and point mutation of Ngb revealed that the 7-105 aa fragment of Ngb was required and the oxygen-binding site (His64) of Ngb was the major regulatory site for its p38 interaction/activation. Finally, administration of exogenous TAT-Ngb peptides significantly enhanced axon regeneration in cultured neurons upon OGD/Re. Taken together, Ngb promotes axon regeneration via O2-Ngb-p38-GAP43 signaling during I/R. This novel mechanism suggests potential therapeutic applications of Ngb for ischemic stroke and other related axonopathy.
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20
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Bellei M, Bortolotti CA, Di Rocco G, Borsari M, Lancellotti L, Ranieri A, Sola M, Battistuzzi G. The influence of the Cys46/Cys55 disulfide bond on the redox and spectroscopic properties of human neuroglobin. J Inorg Biochem 2018; 178:70-86. [DOI: 10.1016/j.jinorgbio.2017.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/21/2017] [Accepted: 10/09/2017] [Indexed: 12/21/2022]
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21
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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] [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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22
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Reeder BJ. Redox and Peroxidase Activities of the Hemoglobin Superfamily: Relevance to Health and Disease. Antioxid Redox Signal 2017; 26:763-776. [PMID: 27637274 DOI: 10.1089/ars.2016.6803] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
SIGNIFICANCE Erythrocyte hemoglobin (Hb) and myocyte myoglobin, although primarily oxygen-carrying proteins, have the capacity to do redox chemistry. Such redox activity in the wider family of globins now appears to have important associations with the mechanisms of cell stress response. In turn, an understanding of such mechanisms in vivo may have a potential in the understanding of cancer therapy resistance and neurodegenerative disorders such as Alzheimer's. Recent Advances: There has been an enhanced understanding of the redox chemistry of the globin superfamily in recent years, leading to advances in development of Hb-based blood substitutes and in hypotheses relating to specific disease mechanisms. Neuroglobin (Ngb) and cytoglobin (Cygb) have been linked to cell protection mechanisms against hypoxia and oxidative stress, with implications in the onset and progression of neurodegenerative diseases for Ngb and cancer for Cygb. CRITICAL ISSUES Despite advances in the understanding of redox chemistry of globins, the physiological roles of many of these proteins still remain ambiguous at best. Confusion over potential physiological roles may relate to multifunctional roles for globins, which may be modulated by surface-exposed cysteine pairs in some globins. Such roles may be critical in deciphering the relationships of these globins in human diseases. FUTURE DIRECTIONS Further studies are required to connect the considerable knowledge on the mechanisms of globin redox chemistry in vitro with the physiological and pathological roles of globins in vivo. In doing so, new therapies for neurodegenerative disorders and cancer therapy resistance may be targeted. Antioxid. Redox Signal. 26, 763-776.
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Affiliation(s)
- Brandon J Reeder
- School of Biological Sciences, University of Essex , Essex, United Kingdom
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23
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Van Acker ZP, Luyckx E, Van Leuven W, Geuens E, De Deyn PP, Van Dam D, Dewilde S. Impaired hypoxic tolerance in APP23 mice: a dysregulation of neuroprotective globin levels. FEBS Lett 2017; 591:1321-1332. [PMID: 28391636 PMCID: PMC5518225 DOI: 10.1002/1873-3468.12651] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/16/2017] [Accepted: 04/06/2017] [Indexed: 12/19/2022]
Abstract
Although neuroglobin confers neuroprotection against Alzheimer's disease (AD) pathology, its expression becomes downregulated in late-stage AD. Here, we provide evidence that indicates that this decrease is associated with the AD-linked angiopathy. While wild-type mice of different ages show upregulated cerebral neuroglobin expression upon whole-body hypoxia, APP23 mice exhibit decreased cerebral transcription of neuroglobin. Interestingly, transcription of cytoglobin, whose involvement in amyloid pathology still needs to be elucidated, follows a similar pattern. To further unravel the underlying mechanism, we examined the expression levels of the RE-1-silencing transcription factor (REST/NRSF) after identifying a recognition site for it in the regulatory region of both globins. Neuroglobin-cytoglobin-REST/NRSF expression correlations are detected mainly in the cortex. This raises the possibility of REST/NRSF being an upstream regulator of these globins.
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Affiliation(s)
- Zoë P Van Acker
- Laboratory of Protein Science, Proteomics and Epigenetic Signalling, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
| | - Evi Luyckx
- Laboratory of Protein Science, Proteomics and Epigenetic Signalling, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
| | - Wendy Van Leuven
- Laboratory of Protein Science, Proteomics and Epigenetic Signalling, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
| | - Eva Geuens
- Laboratory of Protein Science, Proteomics and Epigenetic Signalling, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
| | - Peter P De Deyn
- Laboratory of Neurochemistry & Behaviour, Institute Born-Bunge, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium.,Alzheimer Research Center, Department of Neurology, University of Groningen, the Netherlands
| | - Debby Van Dam
- Laboratory of Neurochemistry & Behaviour, Institute Born-Bunge, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium.,Alzheimer Research Center, Department of Neurology, University of Groningen, the Netherlands
| | - Sylvia Dewilde
- Laboratory of Protein Science, Proteomics and Epigenetic Signalling, Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
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24
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Pienimaeki‐Roemer A, Konovalova T, Musri MM, Sigruener A, Boettcher A, Meister G, Schmitz G. Transcriptomic profiling of platelet senescence and platelet extracellular vesicles. Transfusion 2016; 57:144-156. [DOI: 10.1111/trf.13896] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 07/09/2016] [Accepted: 07/17/2016] [Indexed: 12/12/2022]
Affiliation(s)
| | - Tatiana Konovalova
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic of Regensburg
| | - Melina M. Musri
- Institute for Biochemistry I, Faculty of Biology and Preclinical Medicine, University of RegensburgRegensburg Germany
| | - Alexander Sigruener
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic of Regensburg
| | - Alfred Boettcher
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic of Regensburg
| | - Gunter Meister
- Institute for Biochemistry I, Faculty of Biology and Preclinical Medicine, University of RegensburgRegensburg Germany
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic of Regensburg
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25
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Uppal S, Singh AK, Arya R, Tewari D, Jaiswal N, Kapoor A, Bera AK, Nag A, Kundu S. Phe28 B10 Induces Channel-Forming Cytotoxic Amyloid Fibrillation in Human Neuroglobin, the Brain-Specific Hemoglobin. Biochemistry 2016; 55:6832-6847. [PMID: 27951646 DOI: 10.1021/acs.biochem.6b00617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Since its discovery, neuroglobin (Ngb), a neuron-specific oxygen binding hemoglobin, distinct from the classical myoglobin and blood hemoglobin, has attracted attention as an endogenous neuroprotectant. Recent reports suggest that Ngb protects neurons from brain stroke, ischemic stress-induced degeneration, and other brain disorders. Proteins with a specific role in neuroprotection are often associated with neurodegeneration, as well, depending on the cellular environment or specific cellular triggers that tilt the balance one way or the other. This investigation explored the potential role of Ngb in amyloid fibril-related neuronal disorder. Ngb was capable of amyloid formation in vitro at neutral pH and ambient temperature, in both apo and holo forms, albeit at a slower rate in the holo form, unlike other hemoglobins that exhibit such behavior exclusively in the apo states. Elevated temperature enhanced the rate of fibril formation significantly. The B-helix, which is known to play a major role in Ngb ligand binding kinetics, was found to be amyloidogenic with the Phe28B10 amino acid side chain as the key inducer of fibrillation. The Ngb amyloid fibril was also significantly cytotoxic to neuroblastoma cell lines, compared to those obtained from reference hemoglobins. The Ngb fibril probably promoted toxicity by inducing channel formation in the cell membrane, as investigated here using synthetic lipid bilayer membranes and the propidium iodide uptake assay. These findings imply that Ngb plays a role in neurodegenerative disorders in vivo, for which there seems to be indirect evidence by association. Ngb thus presents a novel prospect for understanding amyloid-related brain disorders beyond the limited set of proteins currently investigated for such diseases.
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Affiliation(s)
- Sheetal Uppal
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Amit Kumar Singh
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Richa Arya
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Debanjan Tewari
- Department of Biotechnology, Indian Institute of Technology Madras , Chennai 600036, India
| | - Neha Jaiswal
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Abhijeet Kapoor
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Amal Kanti Bera
- Department of Biotechnology, Indian Institute of Technology Madras , Chennai 600036, India
| | - Alo Nag
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Suman Kundu
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
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Ascenzi P, di Masi A, Leboffe L, Fiocchetti M, Nuzzo MT, Brunori M, Marino M. Neuroglobin: From structure to function in health and disease. Mol Aspects Med 2016; 52:1-48. [DOI: 10.1016/j.mam.2016.10.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 10/27/2016] [Accepted: 10/27/2016] [Indexed: 01/01/2023]
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Abstract
Globins are globular proteins for either transport or storage of oxygen which are critical for cellular metabolism. Four globins have been identified in rodent and human brains. Among them, neuroglobin, cytoglobin and hemoglobin chains are constitutively expressed in normal brain, while myoglobin is only expressed in some neurological disorders. Studies on the molecular structure, expression and functional features of these brain globins indicated that they may play crucial roles in maintenance of neural cell survival and activity, including neurons and astrocytes. Their regulation in neurological disorders may help thoroughly understand initiation and progression of ischemia, Alzheimer's disease and glioma, etc. Elucidation of the brain globin functions might remarkably improve medical strategies that sustain neurological homeostasis and treat neurological diseases. Here the expression pattern and functions of brain globins and their involvement in neurological disorders are reviewed.
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Affiliation(s)
- Luo-Kun Xie
- Center for Neuroscience Discovery, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Shao-Hua Yang
- Center for Neuroscience Discovery, University of North Texas Health Science Center, Fort Worth, TX, USA
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Guglielmotto M, Reineri S, Iannello A, Ferrero G, Vanzan L, Miano V, Ricci L, Tamagno E, De Bortoli M, Cutrupi S. E2 Regulates Epigenetic Signature on Neuroglobin Enhancer-Promoter in Neuronal Cells. Front Cell Neurosci 2016; 10:147. [PMID: 27313512 PMCID: PMC4887468 DOI: 10.3389/fncel.2016.00147] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/18/2016] [Indexed: 12/13/2022] Open
Abstract
Estrogens are neuroprotective factors in several neurological diseases. Neuroglobin (NGB) is one of the estrogen target genes involved in neuroprotection, but little is known about its transcriptional regulation. Estrogen genomic pathway in gene expression regulation is mediated by estrogen receptors (ERα and ERβ) that bind to specific regulatory genomic regions. We focused our attention on 17β-estradiol (E2)-induced NGB expression in human differentiated neuronal cell lines (SK-N-BE and NT-2). Previously, using bioinformatics analysis we identified a putative enhancer in the first intron of NGB locus. Therefore, we observed that E2 increased the enrichment of the H3K4me3 epigenetic marks at the promoter and of the H3K4me1 and H3K27Ac at the intron enhancer. In these NGB regulatory regions, we found estrogen receptor alpha (ERα) binding suggesting that ERα may mediate chromatin remodeling to induce NGB expression upon E2 treatment. Altogether our data show that NGB expression is regulated by ERα binding on genomic regulatory regions supporting hormone therapy applications for the neuroprotection against neurodegenerative diseases.
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Affiliation(s)
- Michela Guglielmotto
- Neuroscience Institute of the Cavalieri Ottolenghi Foundation (NICO), University of TurinTurin, Italy
- Department Neurosciences, University of TurinTurin, Italy
| | - Stefania Reineri
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
| | - Andrea Iannello
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
| | - Giulio Ferrero
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
- Department of Computer Science, University of TurinTurin, Italy
| | - Ludovica Vanzan
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
| | - Valentina Miano
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
| | - Laura Ricci
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
| | - Elena Tamagno
- Neuroscience Institute of the Cavalieri Ottolenghi Foundation (NICO), University of TurinTurin, Italy
- Department Neurosciences, University of TurinTurin, Italy
| | - Michele De Bortoli
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
| | - Santina Cutrupi
- Center for Molecular Systems Biology, University of TurinOrbassano, Turin, Italy
- Department of Clinical and Biological Sciences, University of TurinOrbassano, Turin, Italy
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Vorasubin N, Hosokawa S, Hosokawa K, Ishiyama G, Ishiyama A, Lopez IA. Neuroglobin immunoreactivity in the human cochlea. Brain Res 2015; 1630:56-63. [PMID: 26556771 DOI: 10.1016/j.brainres.2015.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 10/29/2015] [Accepted: 11/02/2015] [Indexed: 10/22/2022]
Abstract
Neuroglobin (Ngb) is an oxygen-binding protein with a demonstrated role in endogenous neuroprotective mechanisms. It has been shown to function as a scavenger for reactive oxidizing species thereby assisting in cellular defense against oxidative stress. In the present study, we characterized the presence of Ngb in the human cochlea. Immunohistochemical staining was performed on formalin fixed celloidin human cochlea sections obtained from human temporal bones, using affinity purified polyclonal antibodies against Ngb. Thirty-six temporal bones were analyzed, 15 with normal otologic histories and 21 diagnosed with different inner ear pathologies. Ngb immunoreactivity (Ngb-IR) was consistently expressed in the neurons of spiral ganglia (SG) and supporting cells of the organ of Corti. There was a significant decrease of Ngb-IR in SGNs from specimens with inner ear pathologies when compared to normal specimens. In contrast, Ngb-IR in the organ of Corti did not show significant changes between pathological and normal specimens. The differential pattern of Ngb expression in these cochlear structures suggests that Ngb may participate in defense mechanisms in inner ear pathologies where oxidative stress is involved.
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Affiliation(s)
- Nopawan Vorasubin
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095-1624, USA
| | - Seiji Hosokawa
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095-1624, USA; Department of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kumiko Hosokawa
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095-1624, USA; Department of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Gail Ishiyama
- Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095-1624, USA
| | - Akira Ishiyama
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095-1624, USA
| | - Ivan A Lopez
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095-1624, USA.
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Li Y, Dai YB, Sun JY, Xiang Y, Yang J, Dai SY, Zhang X. Neuroglobin Attenuates Beta Amyloid-Induced Apoptosis Through Inhibiting Caspases Activity by Activating PI3K/Akt Signaling Pathway. J Mol Neurosci 2015; 58:28-38. [PMID: 26346601 DOI: 10.1007/s12031-015-0645-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 08/19/2015] [Indexed: 11/27/2022]
Abstract
Excessive accumulation and deposition of amyloid-beta (Aβ) has been considered as a pivotal event in the pathogenesis of Alzheimer's disease (AD). Neuronal apoptosis is one of the characteristics of AD, which is a possible mechanism underlying Aβ-induced neuronal neurotoxicity. Neuroglobin (Ngb) is a newly discovered vertebrate heme protein that exhibits neuroprotective functions against cell death associated with hypoxic and amyloid insult. However, until now, the exact mechanism of neuroglobin's protective action has not been determined. To investigate the potential neuroprotective roles and mechanisms of Ngb, transgenic AD mice (APPswe/PSEN1dE9) and SH-SY5Y cells transfected with pAPPswe were enrolled into the study. In vivo, overexpression of Ngb via intracerebroventricular injection with pNgb attenuated memory, cognitive impairment, and plaque generations. In pAPPswe transfected SH-SY5Y cells, Ngb not only decreased the generation of Aβ42, but also attenuated mitochondrial dysfunction and apoptosis through suppressing the activation of caspase-3, caspase-9 by Akt activating phosphorylation, which were restrained by phosphatidylinositol 3-kinase inhibitor (LY294002). Our data indicate the anti-apoptotic property of Ngb may play a neuroprotective role against AD.
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Affiliation(s)
- Yu Li
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Yu-bing Dai
- Department of Otolaryngology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Jie-yun Sun
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Yue Xiang
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Jun Yang
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Song-yang Dai
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Xiong Zhang
- Department of Pathology, Chongqing Medical University, Chongqing, China. .,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China. .,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China.
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31
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Ma L, Wang R, Han Y, Sheng S, Zhu J, Ji Z, Zhao Z, Cao Z, Wang P. Development of a Novel Urine Alzheimer-Associated Neuronal Thread Protein ELISA Kit and Its Potential Use in the Diagnosis of Alzheimer's Disease. J Clin Lab Anal 2015; 30:308-14. [PMID: 26037289 DOI: 10.1002/jcla.21856] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 04/08/2015] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is an age-related chronic degenerative disease that damages the nervous system. A noninvasive and simple method for early detection of AD is extremely important for the diagnosis and prognosis of AD. Thus, we aimed to develop an enzyme-linked immunosorbent assay (ELISA) kit to detect urine Alzheimer-associated neuronal thread protein (AD7C-NTP), and to evaluate its clinical value for the diagnosis of AD. METHODS Immunogenic AD7C-NTP peptide fragments were synthesized by the solid-phase method and used for immunizing mice or rabbits to generate anti-AD7C-NTP antibodies. The urine AD7C-NTP ELISA kit was then established; the generated mouse anti-AD7C-NTP antibody was used as a capture antibody, the biotin-labeled rabbit anti-AD7C-NTP antibody was used as a detection antibody, and avidin labeled by horseradish peroxidase was used as a substrate. The first morning urine specimens of 121 AD patients and 118 age-matched controls were collected, and the urine AD7C-NTP levels were detected by the above ELISA kit. RESULTS Mouse and rabbit anti-AD7C-NTP antibody ELISA titer was found to be 1:8,000 and 1:32,000, respectively. A single band with a relative molecular mass of 41 kDa was found in human brain specimens by Western blot assay, which was identified as AD7C-NTP antibody. The urine AD7C-NTP concentration of the AD patients was higher than that of the age-matched controls, the sensitivity was 89.3% and the specificity was 84.7%. CONCLUSIONS Our study demonstrated that our newly developed urine AD7C-NTP ELISA kit has suggested potential for diagnosing AD in a Chinese population, suggesting it may be a useful diagnostic kit for detecting early AD.
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Affiliation(s)
- Lina Ma
- Central Laboratory, Xuanwu Hospital, Capital Medical University, Key Laboratory for Neurodegenerative Disease of Ministry of Education, Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China.,Department of Geriatrics, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Rong Wang
- Central Laboratory, Xuanwu Hospital, Capital Medical University, Key Laboratory for Neurodegenerative Disease of Ministry of Education, Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Ying Han
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Shuli Sheng
- Central Laboratory, Xuanwu Hospital, Capital Medical University, Key Laboratory for Neurodegenerative Disease of Ministry of Education, Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Jianan Zhu
- Shenzhen Anqun Biotech CO., Ltd., Shenzhen, China
| | - Zhijuan Ji
- Central Laboratory, Xuanwu Hospital, Capital Medical University, Key Laboratory for Neurodegenerative Disease of Ministry of Education, Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Zhiwei Zhao
- Central Laboratory, Xuanwu Hospital, Capital Medical University, Key Laboratory for Neurodegenerative Disease of Ministry of Education, Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Ziqing Cao
- Department of Neurology, Beijing Chaoyanmen Hospital, Beijing, China
| | - Peichang Wang
- Department of Clinical Laboratory, Xuanwu Hospital, Capital Medical University, Beijing, China
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32
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Interaction of apoNeuroglobin with heme–Aβ complexes relevant to Alzheimer’s disease. J Biol Inorg Chem 2015; 20:563-74. [DOI: 10.1007/s00775-015-1241-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/13/2015] [Indexed: 01/09/2023]
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33
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Wang R, Halper-Stromberg E, Szymanski-Pierce M, Bassett SS, Avramopoulos D. Genetic determinants of neuroglobin transcription. Neurogenetics 2013; 15:65-75. [PMID: 24362753 DOI: 10.1007/s10048-013-0388-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 12/06/2013] [Indexed: 11/29/2022]
Abstract
Neuroglobin (NGB) is a neuron-specific vertebrate globin shown to protect against hypoxia, ischemia, oxidative stress and the toxic effects of Amyloid-beta. Following on our and others' results highlighting the importance of NGB expression in disease, we searched for genetic determinants of its expression. We found that a microRNA expressed with the NGB transcript shows significant target enrichments in the angiogenesis pathway and the Alzheimer disease/presenilin pathway. Using reporter constructs we identified potential promoter/enhancer elements between the transcription start site and 1,142 bp upstream. Using 184 post-mortem temporal lobe samples we replicated the reported negative effect of age, and after genotyping tagging SNPs we found one (rs981471) showing a significant correlation with the gene's expression and another (rs8014408) showing an interaction with age, the rare C allele being correlated with higher expression and faster decline. The two SNPs are towards the 3' end of NGB within the same LD block, 52 Kb apart and modestly correlated (r (2) = 0.5). Next generation sequencing of the same 184 temporal lobe samples and 79 confirmed AD patients across the entire gene region (including >12 Kb on the 3' and 5' flank) revealed limited coding variation, suggesting purifying selection of NGB, but did not identify regulatory or disease associated rare variants. A dinucleotide repeat in intron 1 with extensive evidence of functionality showed interesting but inconclusive results, as it was not amenable to further molecular analysis.
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Affiliation(s)
- R Wang
- Department of Psychiatry, Johns Hopkins University, School of Medicine, 733 North Broadway, MRB-507, Baltimore, MD, 21205, USA
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