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Schlüter A, Aksan B, Fioravanti R, Valente S, Mai A, Mauceri D. Histone Deacetylases Contribute to Excitotoxicity-Triggered Degeneration of Retinal Ganglion Cells In Vivo. Mol Neurobiol 2019; 56:8018-8034. [PMID: 31161423 DOI: 10.1007/s12035-019-01658-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/20/2019] [Indexed: 02/06/2023]
Abstract
Excitotoxicity is known to modulate the nuclear accumulation, and thus activity state, of histone deacetylases (HDACs) in pyramidal neurons. In the retina, deregulation in activity and expression of different HDACs has been linked to pathological conditions such as retinitis pigmentosa, retinal ischemia, glaucoma, and acute optic nerve injury. Up to now, however, the effects of in vivo excitotoxicity on the different HDACs in retinal ganglion cells (RGCs) have not been thoroughly investigated. Here, we injected adult mice intravitreally with N-methyl-D-aspartate (NMDA) as a mean to trigger excitotoxicity-mediated RGC degeneration and we detected time-dependent loss of RGCs at 1 and 7 days after the insult. Further, we characterized the subcellular localization of HDACs belonging to class I (HDAC1, HDAC3), IIa (HDAC4, HDAC5, HDAC7, HDAC9), IIb (HDAC6, HDAC10), and IV (HDAC11) in RGCs. Our analyses revealed a differential pattern of HDACs nuclear distribution in RGCs following excitotoxicity. After 1 day, HDAC3, HDAC5, HDAC6, HDAC7, and HDAC11 showed altered subcellular localization in RGCs while 7 days after the excitotoxic insult, HDAC4 and HDAC9 were the only HDACs displaying changes in their subcellular distribution. Moreover, we found that in vivo selective inhibition of HDAC1/3 or HDAC4/5 via MS-275 (entinostat) or LMK-235, respectively, could prevent ongoing RGC degeneration. In conclusion, our results point towards a role of HDACs in RGC degeneration and identify HDAC1/3 and HDAC4/5 as potential therapeutic targets to treat degenerative retinal diseases.
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Affiliation(s)
- Annabelle Schlüter
- Neurobiology, Interdisciplinary Center for Neurosciences, Heidelberg University, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany
| | - Bahar Aksan
- Neurobiology, Interdisciplinary Center for Neurosciences, Heidelberg University, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany
| | - Rossella Fioravanti
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Sergio Valente
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
- Pasteur Institute, Cenci-Bolognetti Foundation, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Daniela Mauceri
- Neurobiology, Interdisciplinary Center for Neurosciences, Heidelberg University, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany.
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52
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Campbell G, Licht-Mayer S, Mahad D. Targeting mitochondria to protect axons in progressive MS. Neurosci Lett 2019; 710:134258. [PMID: 31082453 DOI: 10.1016/j.neulet.2019.05.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 05/07/2019] [Accepted: 05/09/2019] [Indexed: 10/26/2022]
Abstract
Inflammatory demyelinating processes target the neuron, particularly axons and synapses, in multiple sclerosis (MS). There is a gathering body of evidence indicating molecular changes which converge on mitochondria within neurons in progressive forms of MS. The most reproducible changes are the increase in mitochondrial content within demyelinated axons and mitochondrial respiratory chain complex deficiency in neurons, which compromises the capacity to generate ATP. The resulting lack of ATP and the likely energy failure state and its coupling with an increase in demand for energy by the demyelinated axon, are particularly relevant to the long tracts such as corticospinal tracts with long projection axons. Recent work in our laboratory and that of our collaborators indicate the limited reflection of the mitochondrial changes within neurons in the experimental disease models. Enhancing the energy producing capacity of neurons to meet the increased energy demand of demyelinated axons is likely to be a novel neuroprotective strategy in progressive MS.
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Affiliation(s)
- Graham Campbell
- The Centre for Clinical Brain Science, University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Simon Licht-Mayer
- The Centre for Clinical Brain Science, University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Don Mahad
- The Centre for Clinical Brain Science, University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh, EH16 4SB, UK.
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53
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De Simone A, Milelli A. Histone Deacetylase Inhibitors as Multitarget Ligands: New Players in Alzheimer's Disease Drug Discovery? ChemMedChem 2019; 14:1067-1073. [PMID: 30958639 DOI: 10.1002/cmdc.201900174] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Indexed: 01/14/2023]
Abstract
Histone deacetylase inhibitors (HDACIs) are responsible for controlling gene expression by modulating the acetylation status of histone proteins. Furthermore, they modulate the activity of cytoplasmic non-histone proteins. Due to the involvement of HDACs in neurodevelopment, memory formation, and cognitive processes, HDACIs have been suggested as innovative agents for the treatment of neurodegenerative disorders such as Alzheimer's disease (AD). Given their mechanisms of action and the complex nature of AD, HDACIs have been proposed for the design of novel multitarget ligands (MTLs). To this aim, the fragment responsible for HDAC inhibition has been coupled with other structures that are able to provide additional biological actions, such as antioxidant activity or the inhibition of phosphodiesterase 5, transglutaminase 2, and glycogen synthase kinase 3β. Herein we discuss recent efforts to design HDACI-based MTLs as potential disease-modifying entities.
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Affiliation(s)
- Angela De Simone
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso D'Augusto 237, 47921, Rimini, Italy
| | - Andrea Milelli
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso D'Augusto 237, 47921, Rimini, Italy
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54
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Lee Y, Pei J, Baumhardt JM, Chook YM, Grishin NV. Structural prerequisites for CRM1-dependent nuclear export signaling peptides: accessibility, adapting conformation, and the stability at the binding site. Sci Rep 2019; 9:6627. [PMID: 31036839 PMCID: PMC6488578 DOI: 10.1038/s41598-019-43004-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 04/11/2019] [Indexed: 01/08/2023] Open
Abstract
Nuclear export signal (NES) motifs function as essential regulators of the subcellular location of proteins by interacting with the major nuclear exporter protein, CRM1. Prediction of NES is of great interest in many aspects of research including cancer, but currently available methods, which are mostly based on the sequence-based approaches, have been suffered from high false positive rates since the NES consensus patterns are quite commonly observed in protein sequences. Therefore, finding a feature that can distinguish real NES motifs from false positives is desired to improve the prediction power, but it is quite challenging when only using the sequence. Here, we provide a comprehensive table for the validated cargo proteins, containing the location of the NES consensus patterns with the disordered propensity plots, known protein domain information, and the predicted secondary structures. It could be useful for determining the most plausible NES region in the context of the whole protein sequence and suggests possibilities for some non-binders of the annotated regions. In addition, using the currently available crystal structures of CRM1 bound to various classes of NES peptides, we adopted, for the first time, the structure-based prediction of the NES motifs bound to the CRM1's binding groove. Combining sequence-based and structure-based predictions, we suggest a novel and more straight-forward approach to identify CRM1-binding NES sequences by analysis of their structural prerequisites and energetic evaluation of the stability at the CRM1's binding site.
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Affiliation(s)
- Yoonji Lee
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jimin Pei
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jordan M Baumhardt
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Yuh Min Chook
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Nick V Grishin
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
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55
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HDAC2, but not HDAC1, regulates Kv1.2 expression to mediate neuropathic pain in CCI rats. Neuroscience 2019; 408:339-348. [PMID: 31022463 DOI: 10.1016/j.neuroscience.2019.03.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 12/27/2022]
Abstract
The expression of potassium ion channel subunit 1.2 (Kv1.2) in the dorsal root ganglion (DRG) influences the excitability of neurons, which contributes to the induction and development of neuropathic pain (NPP); however, the molecular mechanisms underlying the downregulation of Kv1.2 in NPP remain unknown. Histone deacetylase (HDAC) inhibitors are reported to attenuate the development of pain hypersensitivity in rats with NPP. Whether HDAC inhibitors contribute to regulation of Kv1.2 expression, and which specific HDAC subunit is involved in NPP, remain unexplored. In this study we established a chronic constrictive injury (CCI) model and used western blot, quantitative real-time PCR, immunostaining, intrathecal injection, and siRNA methods to explore which HDAC subunit is involved in regulating Kv1.2 expression to mediate NPP. Our results demonstrated that nerve injury led to upregulation of HDAC1 expression in the DRG, and of HDAC2 in the DRG and spinal cord. Double-labeling immunofluorescence histochemistry showed that Kv1.2 principally co-localized with HDAC2, but not HDAC1, in NF200-positive large neurons of the DRG. Intrathecal injection with the HDAC inhibitor, suberoylanilide hydroxamic acid, attenuated mechanical and thermal hypersensitivity and reversed the decreased expression of Kv1.2 in rats with CCI. Furthermore, treatment with HDAC2, but not HDAC1, siRNA also relieved mechanical and thermal hypersensitivity and upregulated the Kv1.2 expression in this model. In vitro transfection of PC12 cells with HDAC2 and HDAC1 siRNA confirmed that only HDAC2 siRNA could regulate the expression of Kv1.2. These findings suggest that HDAC2, but not HDAC1, is involved in NPP through regulation of Kv1.2 expression.
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56
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Pfister JA, Ma C, D’Mello SR. Catalytic-independent neuroprotection by SIRT1 is mediated through interaction with HDAC1. PLoS One 2019; 14:e0215208. [PMID: 30973934 PMCID: PMC6459503 DOI: 10.1371/journal.pone.0215208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 03/28/2019] [Indexed: 12/25/2022] Open
Abstract
SIRT1, a NAD+-dependent deacetylase, protects neurons in a variety of in vitro and in vivo models of neurodegenerative disease. We have previously described a neuroprotective effect by SIRT1 independent of its catalytic activity. To confirm this conclusion we tested a panel of SIRT1 deletion mutant constructs, designated Δ1–Δ10, in cerebellar granule neurons induced to undergo apoptosis by low potassium treatment. We find that deletions of its N-terminal, those lacking portions of the catalytic domain, as well as one that lacks the ESA (Essential for SIRT1 Activity) motif, are as protective as wild-type SIRT1. In contrast, deletion of the region spanning residues 542–609, construct Δ8, substantially reduced the neuroprotective activity of SIRT1. As observed with LK-induced apoptosis, all SIRT1 constructs except Δ8 protect neurons against mutant huntingtin toxicity. Although its own catalytic activity is not required, neuroprotection by SIRT1 is abolished by inhibitors of Class I HDACs as well as by knockdown of endogenous HDAC1. We find that SIRT1 interacts with HDAC1 and this interaction is greatly increased by deleting regions of SIRT1 necessary for its catalytic activity. However, SIRT1-mediated protection is not dependent on HDAC1 deacetylase activity. Although other studies have described that catalytic activity of SIRT1 mediates is neuroprotective effect, our study suggests that in cerebellar granule neurons its deacetylase activity is not important and that HDAC1 contributes to the neuroprotective effect of SIRT1.
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Affiliation(s)
- Jason A. Pfister
- Department of Biological Sciences, Southern Methodist University, Dallas, TX, United States of America
| | - Chi Ma
- National Institutes of Health, Bethesda, MD, United States of America
| | - Santosh R. D’Mello
- Department of Biological Sciences, Southern Methodist University, Dallas, TX, United States of America
- * E-mail:
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57
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Mahady L, Nadeem M, Malek-Ahmadi M, Chen K, Perez SE, Mufson EJ. Frontal Cortex Epigenetic Dysregulation During the Progression of Alzheimer's Disease. J Alzheimers Dis 2019; 62:115-131. [PMID: 29439356 DOI: 10.3233/jad-171032] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although the frontal cortex plays an important role in cognitive function and undergoes neuronal dysfunction in Alzheimer's disease (AD), the factors driving these cellular alterations remain unknown. Recent studies suggest that alterations in epigenetic regulation play a pivotal role in this process in AD. We evaluated frontal cortex histone deacetylase (HDAC) and sirtuin (SIRT) levels in tissue obtained from subjects with a premortem diagnosis of no-cognitive impairment (NCI), mild cognitive impairment (MCI), mild to moderate AD (mAD), and severe AD (sAD) using quantitative western blotting. Immunoblots revealed significant increases in HDAC1 and HDAC3 in MCI and mAD, followed by a decrease in sAD compared to NCI. HDAC2 levels remained stable across clinical groups. HDAC4 was significantly increased in MCI and mAD, but not in sAD compared to NCI. HDAC6 significantly increased during disease progression, while SIRT1 decreased in MCI, mAD, and sAD compared to NCI. HDAC1 levels negatively correlated with perceptual speed, while SIRT1 positively correlated with perceptual speed, episodic memory, global cognitive score, and Mini-Mental State Examination. HDAC1 positively, while SIRT1 negatively correlated with cortical neurofibrillary tangle counts. These findings suggest that dysregulation of epigenetic proteins contribute to neuronal dysfunction and cognitive decline in the early stage of AD.
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Affiliation(s)
- Laura Mahady
- Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA.,Arizona State University Interdisciplinary Graduate Program in Neuroscience, Tempe, AZ, USA
| | - Muhammad Nadeem
- Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA
| | | | - Kewei Chen
- Banner Alzheimer's Institute, Phoenix, AZ, USA
| | - Sylvia E Perez
- Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA
| | - Elliott J Mufson
- Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA
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58
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Magiera MM, Bodakuntla S, Žiak J, Lacomme S, Marques Sousa P, Leboucher S, Hausrat TJ, Bosc C, Andrieux A, Kneussel M, Landry M, Calas A, Balastik M, Janke C. Excessive tubulin polyglutamylation causes neurodegeneration and perturbs neuronal transport. EMBO J 2018; 37:e100440. [PMID: 30420556 PMCID: PMC6276888 DOI: 10.15252/embj.2018100440] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/14/2018] [Accepted: 09/20/2018] [Indexed: 12/12/2022] Open
Abstract
Posttranslational modifications of tubulin are emerging regulators of microtubule functions. We have shown earlier that upregulated polyglutamylation is linked to rapid degeneration of Purkinje cells in mice with a mutation in the deglutamylating enzyme CCP1. How polyglutamylation leads to degeneration, whether it affects multiple neuron types, or which physiological processes it regulates in healthy neurons has remained unknown. Here, we demonstrate that excessive polyglutamylation induces neurodegeneration in a cell-autonomous manner and can occur in many parts of the central nervous system. Degeneration of selected neurons in CCP1-deficient mice can be fully rescued by simultaneous knockout of the counteracting polyglutamylase TTLL1. Excessive polyglutamylation reduces the efficiency of neuronal transport in cultured hippocampal neurons, suggesting that impaired cargo transport plays an important role in the observed degenerative phenotypes. We thus establish polyglutamylation as a cell-autonomous mechanism for neurodegeneration that might be therapeutically accessible through manipulation of the enzymes that control this posttranslational modification.
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Affiliation(s)
- Maria M Magiera
- Institut Curie, CNRS UMR3348, PSL Research University, Orsay, France
- Université Paris-Saclay, CNRS UMR3348, Université Paris Sud, Orsay, France
| | - Satish Bodakuntla
- Institut Curie, CNRS UMR3348, PSL Research University, Orsay, France
- Université Paris-Saclay, CNRS UMR3348, Université Paris Sud, Orsay, France
| | - Jakub Žiak
- Department of Molecular Neurobiology, Institute of Physiology, Czech Academy of Sciences, Prague 4, Czech Republic
- Faculty of Science, Charles University, Prague 2, Czech Republic
| | - Sabrina Lacomme
- Bordeaux Imaging Center, BIC, UMS 3420, Université Bordeaux, Bordeaux, France
| | - Patricia Marques Sousa
- Institut Curie, CNRS UMR3348, PSL Research University, Orsay, France
- Université Paris-Saclay, CNRS UMR3348, Université Paris Sud, Orsay, France
| | - Sophie Leboucher
- Institut Curie, CNRS UMR3348, PSL Research University, Orsay, France
- Université Paris-Saclay, CNRS UMR3348, Université Paris Sud, Orsay, France
| | - Torben J Hausrat
- Center for Molecular Neurobiology (ZMNH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christophe Bosc
- Grenoble Institut des Neurosciences, GIN, Université Grenoble Alpes, Grenoble, France
- Inserm U1216, Grenoble, France
| | - Annie Andrieux
- Grenoble Institut des Neurosciences, GIN, Université Grenoble Alpes, Grenoble, France
- Inserm U1216, Grenoble, France
| | - Matthias Kneussel
- Center for Molecular Neurobiology (ZMNH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marc Landry
- Interdisciplinary Institute for Neuroscience, CNRS UMR5297, Université Bordeaux, Bordeaux, France
| | - André Calas
- Interdisciplinary Institute for Neuroscience, CNRS UMR5297, Université Bordeaux, Bordeaux, France
| | - Martin Balastik
- Department of Molecular Neurobiology, Institute of Physiology, Czech Academy of Sciences, Prague 4, Czech Republic
| | - Carsten Janke
- Institut Curie, CNRS UMR3348, PSL Research University, Orsay, France
- Université Paris-Saclay, CNRS UMR3348, Université Paris Sud, Orsay, France
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59
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Kumar V, Weng YC, Wu YC, Huang YT, Chou WH. PKCε phosphorylation regulates the mitochondrial translocation of ATF2 in ischemia-induced neurodegeneration. BMC Neurosci 2018; 19:76. [PMID: 30497386 PMCID: PMC6267029 DOI: 10.1186/s12868-018-0479-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/27/2018] [Indexed: 11/10/2022] Open
Abstract
Background Global cerebral ischemia triggers neurodegeneration in the hippocampal CA1 region, but the mechanism of neuronal death remains elusive. The epsilon isoform of protein kinase C (PKCε) has recently been identified as a master switch that controls the nucleocytoplasmic trafficking of ATF2 and the survival of melanoma cells. It is of interest to assess the role of PKCε–ATF2 signaling in neurodegeneration. Results Phosphorylation of ATF2 at Thr-52 was reduced in the hippocampus of PKCε null mice, suggesting that ATF2 is a phosphorylation substrate of PKCε. PKCε protein concentrations were significantly reduced 4, 24, 48 and 72 h after transient global cerebral ischemia, resulting in translocation of nuclear ATF2 to the mitochondria. Degenerating neurons staining positively with Fluoro-Jade C exhibited cytoplasmic ATF2. Conclusions Our results support the hypothesis that PKCε regulates phosphorylation and nuclear sequestration of ATF2 in hippocampal neurons during ischemia-induced neurodegeneration.
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Affiliation(s)
- Varun Kumar
- Department of Biological Sciences, School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA
| | - Yi-Chinn Weng
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, 35053, Taiwan, ROC
| | - Yu-Chieh Wu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, 35053, Taiwan, ROC
| | - Yu-Ting Huang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, 35053, Taiwan, ROC
| | - Wen-Hai Chou
- Department of Biological Sciences, School of Biomedical Sciences, Kent State University, Kent, OH, 44242, USA. .,Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, 35053, Taiwan, ROC.
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60
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Ferrer I. Oligodendrogliopathy in neurodegenerative diseases with abnormal protein aggregates: The forgotten partner. Prog Neurobiol 2018; 169:24-54. [DOI: 10.1016/j.pneurobio.2018.07.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 07/24/2018] [Accepted: 07/27/2018] [Indexed: 12/31/2022]
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61
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Campbell G, Mahad D. Neurodegeneration in Progressive Multiple Sclerosis. Cold Spring Harb Perspect Med 2018; 8:cshperspect.a028985. [PMID: 29440322 DOI: 10.1101/cshperspect.a028985] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The neuron is the target of inflammatory demyelinating processes in multiple sclerosis (MS). In progressive MS, however, there is a gathering body of evidence indicating molecular changes within neuronal cell bodies. All of these molecular changes to intrinsic neurons converge on mitochondria, and the most reproduced change relates to mitochondrial respiratory chain complex deficiency. This compromise in the capacity to generate ATP in the neuronal cell body is coupled with an increased demand for energy by the demyelinated axon, which is particularly relevant to the long tracts such as corticospinal tracts with long projection axons. Recent work in our laboratory and that of our collaborators indicate limited reflection of the molecular changes that are intrinsic neurons in the experimental disease models. The mitochondrial changes within neuronal compartments are an under-recognized aspect of progressive MS and likely to offer novel targets for the improvement of neuronal function as well as neuroprotection.
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Affiliation(s)
- Graham Campbell
- The Centre for Clinical Brain Science, University of Edinburgh, Chancellor's Building, Edinburgh EH16 4SB, United Kingdom
| | - Don Mahad
- The Centre for Clinical Brain Science, University of Edinburgh, Chancellor's Building, Edinburgh EH16 4SB, United Kingdom
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62
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Sun L, Telles E, Karl M, Cheng F, Luetteke N, Sotomayor EM, Miller RH, Seto E. Loss of HDAC11 ameliorates clinical symptoms in a multiple sclerosis mouse model. Life Sci Alliance 2018; 1:e201800039. [PMID: 30456376 PMCID: PMC6238389 DOI: 10.26508/lsa.201800039] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 01/12/2023] Open
Abstract
In an animal model for multiple sclerosis, the absence of HDAC11 reduces clinical severity, spinal cord demyelination, and immune cell infiltration, suggesting that HDAC11 is a promising target for MS treatment. Multiple sclerosis (MS) is a chronic, immune-mediated, demyelinating disease of the central nervous system (CNS). There is no known cure for MS, and currently available drugs for managing this disease are only effective early on and have many adverse side effects. Results from recent studies suggest that histone deacetylase (HDAC) inhibitors may be useful for the treatment of autoimmune and inflammatory diseases such as MS. However, the underlying mechanisms by which HDACs influence immune-mediated diseases such as MS are unclear. More importantly, the question of which specific HDAC(s) are suitable drug targets for the potential treatment of MS remains unanswered. Here, we investigate the functional role of HDAC11 in experimental autoimmune encephalomyelitis, a mouse model for MS. Our results indicate that the loss of HDAC11 in KO mice significantly reduces clinical severity and demyelination of the spinal cord in the post-acute phase of experimental autoimmune encephalomyelitis. The absence of HDAC11 leads to reduced immune cell infiltration into the CNS and decreased monocytes and myeloid DCs in the chronic progressive phase of the disease. Mechanistically, HDAC11 controls the expression of the pro-inflammatory chemokine C–C motif ligand 2 (CCL2) gene by enabling the binding of PU.1 transcription factor to the CCL2 promoter. Our results reveal a novel pathophysiological function for HDAC11 in CNS demyelinating diseases, and warrant further investigations into the potential use of HDAC11-specific inhibitors for the treatment of chronic progressive MS.
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Affiliation(s)
- Lei Sun
- George Washington University Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Elphine Telles
- George Washington University Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Molly Karl
- Department of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Fengdong Cheng
- George Washington University Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Noreen Luetteke
- George Washington University Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Eduardo M Sotomayor
- George Washington University Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Robert H Miller
- Department of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Edward Seto
- George Washington University Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
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63
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Pathak A, Stanley EM, Hickman FE, Wallace N, Brewer B, Li D, Gluska S, Perlson E, Fuhrmann S, Akassoglou K, Bronfman F, Casaccia P, Burnette DT, Carter BD. Retrograde Degenerative Signaling Mediated by the p75 Neurotrophin Receptor Requires p150 Glued Deacetylation by Axonal HDAC1. Dev Cell 2018; 46:376-387.e7. [PMID: 30086304 PMCID: PMC6093198 DOI: 10.1016/j.devcel.2018.07.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 05/19/2018] [Accepted: 07/01/2018] [Indexed: 12/23/2022]
Abstract
During development, neurons undergo apoptosis if they do not receive adequate trophic support from tissues they innervate or when detrimental factors activate the p75 neurotrophin receptor (p75NTR) at their axon ends. Trophic factor deprivation (TFD) or activation of p75NTR in distal axons results in a retrograde degenerative signal. However, the nature of this signal and the regulation of its transport are poorly understood. Here, we identify p75NTR intracellular domain (ICD) and histone deacetylase 1 (HDAC1) as part of a retrograde pro-apoptotic signal generated in response to TFD or ligand binding to p75NTR in sympathetic neurons. We report an unconventional function of HDAC1 in retrograde transport of a degenerative signal and its constitutive presence in sympathetic axons. HDAC1 deacetylates dynactin subunit p150Glued, which enhances its interaction with dynein. These findings define p75NTR ICD as a retrograde degenerative signal and reveal p150Glued deacetylation as a unique mechanism regulating axonal transport.
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Affiliation(s)
- Amrita Pathak
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Emily M Stanley
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - F Edward Hickman
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Natalie Wallace
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bryson Brewer
- Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Deyu Li
- Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Shani Gluska
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Eran Perlson
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Sabine Fuhrmann
- Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA; Department of Ophthalmology and Visual Sciences, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Katerina Akassoglou
- Gladstone Institute of Neurological Disease and Department of Neurology, University of California, San Francisco, CA, USA
| | - Francisca Bronfman
- Center for Ageing and Regeneration (CARE UC), Faculty of Biological Sciences, Department of Physiology, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Patrizia Casaccia
- Hunter College Department of Biology, Advanced Science Research Center at The Graduate Center of the City University of New York, New York, NY, USA
| | - Dylan T Burnette
- Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bruce D Carter
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA.
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64
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Stem Cells as Potential Targets of Polyphenols in Multiple Sclerosis and Alzheimer's Disease. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1483791. [PMID: 30112360 PMCID: PMC6077677 DOI: 10.1155/2018/1483791] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/19/2018] [Indexed: 12/16/2022]
Abstract
Alzheimer's disease (AD) and multiple sclerosis are major neurodegenerative diseases, which are characterized by the accumulation of abnormal pathogenic proteins due to oxidative stress, mitochondrial dysfunction, impaired autophagy, and pathogens, leading to neurodegeneration and behavioral deficits. Herein, we reviewed the utility of plant polyphenols in regulating proliferation and differentiation of stem cells for inducing brain self-repair in AD and multiple sclerosis. Firstly, we discussed the genetic, physiological, and environmental factors involved in the pathophysiology of both the disorders. Next, we reviewed various stem cell therapies available and how they have proved useful in animal models of AD and multiple sclerosis. Lastly, we discussed how polyphenols utilize the potential of stem cells, either complementing their therapeutic effects or stimulating endogenous and exogenous neurogenesis, against these diseases. We suggest that polyphenols could be a potential candidate for stem cell therapy against neurodegenerative disorders.
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65
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He XT, Zhou KX, Zhao WJ, Zhang C, Deng JP, Chen FM, Gu ZX, Li YQ, Dong YL. Inhibition of Histone Deacetylases Attenuates Morphine Tolerance and Restores MOR Expression in the DRG of BCP Rats. Front Pharmacol 2018; 9:509. [PMID: 29867508 PMCID: PMC5962808 DOI: 10.3389/fphar.2018.00509] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/27/2018] [Indexed: 01/21/2023] Open
Abstract
The easily developed morphine tolerance in bone cancer pain (BCP) significantly hindered its clinical use. Increasing evidence suggests that histone deacetylases (HDACs) regulate analgesic tolerance subsequent to continuous opioid exposure. However, whether HDACs contribute to morphine tolerance in the pathogenesis of BCP is still unknown. In the current study, we explored the possible engagement of HDACs in morphine tolerance during the pathogenesis of BCP. After intra-tibia tumor cell inoculation (TCI), we found that the increased expression of HDACs was negatively correlated with the decreased expression of MOR in the DRG following TCI. The paw withdrawal threshold (PWT) and percentage maximum possible effects (MPEs) decreased rapidly in TCI rats when morphine was used alone. In contrast, the concomitant use of SAHA and morphine significantly elevated the PWT and MPEs of TCI rats compared to morphine alone. Additionally, we found that SAHA administration significantly elevated MOR expression in the DRG of TCI rats with or without morphine treatment. Moreover, the TCI-induced increase in the co-expression of MOR and HDAC1 in neurons was significantly decreased after SAHA administration. These results suggest that HDACs are correlated with the downregulation of MOR in the DRG during the pathogenesis of BCP. Inhibition of HDACs using SAHA can be used to attenuate morphine tolerance in BCP.
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Affiliation(s)
- Xiao-Tao He
- Department of Human Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China.,Department of Periodontology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Kai-Xiang Zhou
- Department of Human Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China.,Student Brigade, The Fourth Military Medical University, Xi'an, China
| | - Wen-Jun Zhao
- Department of Human Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China.,Student Brigade, The Fourth Military Medical University, Xi'an, China
| | - Chen Zhang
- Department of Human Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China.,Student Brigade, The Fourth Military Medical University, Xi'an, China
| | - Jian-Ping Deng
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Fa-Ming Chen
- Department of Periodontology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Ze-Xu Gu
- State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yun-Qing Li
- Department of Human Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China.,Joint Laboratory of Neuroscience at Hainan Medical University and The Fourth Military Medical University, Hainan Medical University, Haikou, China
| | - Yu-Lin Dong
- Department of Human Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China
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66
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Tseng JH, Xie L, Song S, Xie Y, Allen L, Ajit D, Hong JS, Chen X, Meeker RB, Cohen TJ. The Deacetylase HDAC6 Mediates Endogenous Neuritic Tau Pathology. Cell Rep 2018; 20:2169-2183. [PMID: 28854366 DOI: 10.1016/j.celrep.2017.07.082] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/09/2017] [Accepted: 07/31/2017] [Indexed: 01/22/2023] Open
Abstract
The initiating events that promote tau mislocalization and pathology in Alzheimer's disease (AD) are not well defined, partly because of the lack of endogenous models that recapitulate tau dysfunction. We exposed wild-type neurons to a neuroinflammatory trigger and examined the effect on endogenous tau. We found that tau re-localized and accumulated within pathological neuritic foci, or beads, comprised of mostly hypo-phosphorylated, acetylated, and oligomeric tau. These structures were detected in aged wild-type mice and were enhanced in response to neuroinflammation in vivo, highlighting a previously undescribed endogenous age-related tau pathology. Strikingly, deletion or inhibition of the cytoplasmic shuttling factor HDAC6 suppressed neuritic tau bead formation in neurons and mice. Using mass spectrometry-based profiling, we identified a single neuroinflammatory factor, the metalloproteinase MMP-9, as a mediator of neuritic tau beading. Thus, our study uncovers a link between neuroinflammation and neuritic tau beading as a potential early-stage pathogenic mechanism in AD.
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Affiliation(s)
- Jui-Heng Tseng
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Ling Xie
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Sheng Song
- Neuropharmacology Section, Neurobiology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Youmei Xie
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Lauren Allen
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Deepa Ajit
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jau-Shyong Hong
- Neuropharmacology Section, Neurobiology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Xian Chen
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Rick B Meeker
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Todd J Cohen
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA.
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67
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Thomas EA, D'Mello SR. Complex neuroprotective and neurotoxic effects of histone deacetylases. J Neurochem 2018; 145:96-110. [PMID: 29355955 DOI: 10.1111/jnc.14309] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 12/05/2017] [Accepted: 12/27/2017] [Indexed: 12/14/2022]
Abstract
By their ability to shatter quality of life for both patients and caregivers, neurodegenerative diseases are the most devastating of human disorders. Unfortunately, there are no effective or long-terms treatments capable of slowing down the relentless loss of neurons in any of these diseases. One impediment is the lack of detailed knowledge of the molecular mechanisms underlying the processes of neurodegeneration. While some neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis, are mostly sporadic in nature, driven by both environment and genetic susceptibility, many others, including Huntington's disease, spinocerebellar ataxias, and spinal-bulbar muscular atrophy, are genetically inherited disorders. Surprisingly, given their different roots and etiologies, both sporadic and genetic neurodegenerative disorders have been linked to disease mechanisms involving histone deacetylase (HDAC) proteins, which consists of 18 family members with diverse functions. While most studies have implicated certain HDAC subtypes in promoting neurodegeneration, a substantial body of literature suggests that other HDAC proteins can preserve neuronal viability. Of particular interest, however, is the recent realization that a single HDAC subtype can have both neuroprotective and neurotoxic effects. Diverse mechanisms, beyond transcriptional regulation have been linked to these effects, including deacetylation of non-histone proteins, protein-protein interactions, post-translational modifications of the HDAC proteins themselves and direct interactions with disease proteins. The roles of these HDACs in both sporadic and genetic neurodegenerative diseases will be discussed in the current review.
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Affiliation(s)
- Elizabeth A Thomas
- Department of Neuroscience, The Scripps Research Institute, La Jolla, California, USA
| | - Santosh R D'Mello
- Department of Biological Sciences, Southern Methodist University, Dallas, Texas, USA
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68
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Campbell G, Mahad DJ. Mitochondrial dysfunction and axon degeneration in progressive multiple sclerosis. FEBS Lett 2018; 592:1113-1121. [PMID: 29453889 DOI: 10.1002/1873-3468.13013] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 11/11/2022]
Abstract
The neuron is the target of inflammatory demyelinating processes in multiple sclerosis (MS). In progressive MS, however, there is a gathering body of evidence indicating that molecular changes converge on mitochondria within neuronal cell bodies. The most reproducible change relates to mitochondrial respiratory chain complex deficiency, which compromises the capacity of neurons to generate ATP. The resulting energy failure state is coupled with an increase in demand for energy by the demyelinated axon, being particularly relevant to the long tracts such as corticospinal tracts with long projection axons. Recent work in our laboratory and that of our collaborators indicates the limited reflection of the mitochondria changes within neurons in experimental disease models. The mitochondrial changes within neuronal compartments are likely to offer novel targets for the improvement in neuronal function in patients with progressive MS.
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Affiliation(s)
- Graham Campbell
- The Centre for Clinical Brain Science, University of Edinburgh, UK
| | - Don J Mahad
- The Centre for Clinical Brain Science, University of Edinburgh, UK
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69
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Jang BG, Choi B, Kim S, Lee JY, Kim MJ. Trichostatin A and Sirtinol Regulate the Expression and Nucleocytoplasmic Shuttling of Histone Deacetylases in All-Trans Retinoic Acid-Induced Differentiation of Neuroblastoma Cells. J Mol Neurosci 2018. [PMID: 29516351 DOI: 10.1007/s12031-018-1050-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Neuroblastoma cell differentiation is a valuable model for studying therapeutic methods in neuroblastoma and the mechanisms of neuronal differentiation. Here, we used trichostatin A (TSA) and sirtinol, which are inhibitors of cHDACs and sirtuins, respectively, to show that classical histone deacetylases (cHDACs) and sirtuins (silent mating type information regulation 2 homolog; SIRTs) affect all-trans retinoic acid (ATRA)-induced differentiation of neuroblastoma cells. After first determining neurite elongation and expression levels of tyrosine hydroxylase and high size neurofilament as useful differentiation markers, we observed that TSA increased neuroblastoma cell differentiation, while sirtinol had the antagonistic effect of decreasing it. The changes were also associated with the nucleocytoplasmic shuttling of cHDACs and sirtuins. ATRA significantly decreased the nuclear to cytoplasmic ratio of SIRT1 and SIRT2.1, while sirtinol inhibited that of SIRT1, and TSA increased that of SIRT1 and SIRT2.1 during early differentiation. Moreover, the effect of the sirtinol-related signal was located upstream for cHDACs and sirtuins total expression, and downstream for their subcellular localization compared with that for the TSA-related signal. These results provide a mechanistic understanding of differentiation in neuroblastoma cells and indicate that cHDACs and sirtuins are critical therapeutic targets for neuroblastoma.
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Affiliation(s)
- Bong-Geum Jang
- Institute of Epilepsy Research, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, 24252, Gangwon-Do, South Korea
| | - Boyoung Choi
- Department of Anatomy and Neurobiology, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, 25242, Gangwon-Do, South Korea
| | - Suyeon Kim
- Department of Anatomy and Neurobiology, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, 25242, Gangwon-Do, South Korea
| | - Jae-Yong Lee
- Department of Biochemistry, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, 24252, Gangwon-Do, South Korea
| | - Min-Ju Kim
- Institute of Epilepsy Research, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, 24252, Gangwon-Do, South Korea.
- Department of Anatomy and Neurobiology, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, 25242, Gangwon-Do, South Korea.
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70
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Ma Y, Yuan S, Tian X, Lin S, Wei S, Hu T, Chen S, Li X, Chen S, Wu D, Wang M, Guo D. ABIN1 inhibits HDAC1 ubiquitination and protects it from both proteasome- and lysozyme-dependent degradation. J Cell Biochem 2017; 119:3030-3043. [PMID: 29058807 DOI: 10.1002/jcb.26428] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/17/2017] [Indexed: 12/13/2022]
Abstract
ABIN1, an important immune regulator, has been shown to be involved in various cellular functions, such as immunity, development, tissue homeostasis, and tumor progression. It inhibits TNF- and TLR-induced NF-κB signaling activation and the consequent gene expression. Despite its functional significance, the mechanism of ABIN1 in the regulation of various cellular functions remains unclear. In this study, we identified HDAC1, a key regulator of eukaryotic gene expression and many important cellular events, including cell proliferation, differentiation, cancer and immunity, as an interacting partner of ABIN1. The results showed that ABIN1 acted as a modulator to down-regulate HDAC1 ubiquitination via three different linkages, thereby stabilizing HDAC1 by inhibiting its lysosomal and proteasomal degradation. Interestingly, the inhibitory function of ABIN1 required direct binding with HDAC1. Moreover, the level of p53, which was a tumor suppressor and a well-studied substrate of HDAC1, was under the regulation of ABIN1 via the modulation of HDAC1 levels, suggesting that ABIN1 was physiologically significant in tumor progression. This study has revealed a new function of ABIN1 in mediating HDAC1 modification and stability.
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Affiliation(s)
- Yuhong Ma
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Sen Yuan
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Xuezhang Tian
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Shanchuan Lin
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Shangmou Wei
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Tongtong Hu
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Shiyou Chen
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, PR China
| | - Xueqing Li
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Shuliang Chen
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Dongcheng Wu
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Min Wang
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Deyin Guo
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, PR China.,School of Basic Medicine (Shenzhen), Sun Yat-Sen University, Guangzhou, PR China
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71
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Disturbed Glucose Metabolism in Rat Neurons Exposed to Cerebrospinal Fluid Obtained from Multiple Sclerosis Subjects. Brain Sci 2017; 8:brainsci8010001. [PMID: 29267205 PMCID: PMC5789332 DOI: 10.3390/brainsci8010001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/13/2017] [Accepted: 12/15/2017] [Indexed: 12/03/2022] Open
Abstract
Axonal damage is widely accepted as a major cause of permanent functional disability in Multiple Sclerosis (MS). In relapsing-remitting MS, there is a possibility of remyelination by myelin producing cells and restoration of neurological function. The purpose of this study was to delineate the pathophysiological mechanisms underpinning axonal injury through hitherto unknown factors present in cerebrospinal fluid (CSF) that may regulate axonal damage, remyelinate the axon and make functional recovery possible. We employed primary cultures of rat unmyelinated cerebellar granule neurons and treated them with CSF obtained from MS and Neuromyelitis optica (NMO) patients. We performed microarray gene expression profiling to study changes in gene expression in treated neurons as compared to controls. Additionally, we determined the influence of gene-gene interaction upon the whole metabolic network in our experimental conditions using the Search Tool for the Retrieval of Interacting Genes/Proteins (STRING) program. Our findings revealed the downregulated expression of genes involved in glucose metabolism in MS-derived CSF-treated neurons and upregulated expression of genes in NMO-derived CSF-treated neurons. We conclude that factors in the CSF of these patients caused a perturbation in metabolic gene(s) expression and suggest that MS appears to be linked with metabolic deformity.
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72
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Wey HY, Gilbert TM, Zürcher NR, She A, Bhanot A, Taillon BD, Schroeder FA, Wang C, Haggarty SJ, Hooker JM. Insights into neuroepigenetics through human histone deacetylase PET imaging. Sci Transl Med 2017; 8:351ra106. [PMID: 27510902 DOI: 10.1126/scitranslmed.aaf7551] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 07/07/2016] [Indexed: 12/14/2022]
Abstract
Epigenetic dysfunction is implicated in many neurological and psychiatric diseases, including Alzheimer's disease and schizophrenia. Consequently, histone deacetylases (HDACs) are being aggressively pursued as therapeutic targets. However, a fundamental knowledge gap exists regarding the expression and distribution of HDACs in healthy individuals for comparison to disease states. Here, we report the first-in-human evaluation of neuroepigenetic regulation in vivo. Using positron emission tomography with [(11)C]Martinostat, an imaging probe selective for class I HDACs (isoforms 1, 2, and 3), we found that HDAC expression is higher in cortical gray matter than in white matter, with conserved regional distribution patterns within and between healthy individuals. Among gray matter regions, HDAC expression was lowest in the hippocampus and amygdala. Through biochemical profiling of postmortem human brain tissue, we confirmed that [(11)C]Martinostat selectively binds HDAC isoforms 1, 2, and 3, the HDAC subtypes most implicated in regulating neuroplasticity and cognitive function. In human stem cell-derived neural progenitor cells, pharmacologic-level doses of Martinostat induced changes in genes closely associated with synaptic plasticity, including BDNF (brain-derived neurotrophic factor) and SYP (synaptophysin), as well as genes implicated in neurodegeneration, including GRN (progranulin), at the transcript level, in concert with increased acetylation at both histone H3 lysine 9 and histone H4 lysine 12. This study quantifies HDAC expression in the living human brain and provides the foundation for gaining unprecedented in vivo epigenetic information in health and disease.
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Affiliation(s)
- Hsiao-Ying Wey
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Tonya M Gilbert
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Nicole R Zürcher
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Angela She
- Chemical Neurobiology Laboratory, Departments of Neurology and Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Anisha Bhanot
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Brendan D Taillon
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Fredrick A Schroeder
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Changing Wang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Stephen J Haggarty
- Chemical Neurobiology Laboratory, Departments of Neurology and Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Jacob M Hooker
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.
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73
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Demyanenko S, Neginskaya M, Berezhnaya E. Expression of Class I Histone Deacetylases in Ipsilateral and Contralateral Hemispheres after the Focal Photothrombotic Infarction in the Mouse Brain. Transl Stroke Res 2017; 9:471-483. [PMID: 29218547 DOI: 10.1007/s12975-017-0595-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 12/19/2022]
Abstract
Histone acetylation and deacetylation are among the most important epigenetic processes that regulate gene expression. Nonselective inhibitors of histone deacetylases (HDAC) can protect brain cells during ischemia and stroke. However, which HDAC isoform is involved in this effect is unknown. Some isoforms of histone deacetylases (HDACs) protect brain cells after ischemia, whereas others can promote their death. Most studies consider early periods (1-24 h) after stroke, whereas little is known on the involvement of HDACs during recovery after stroke. In this study, cellular and intracellular rearrangement of class I HDACs (HDAC1, HDAC2, HDAC3, HDAC8) was investigated at late periods after photothrombotic infarction (PTI) of the mouse sensorimotor cortex in intact tissue that surrounds the ischemia core, in the corresponding region of the contralateral hemisphere, and in the hippocampus. Each HDAC isoform had a specific pattern of expression and intracellular distribution in neurons and astrocytes at different periods after the ischemia. We did not observe ischemia-induced changes in the subcellular localization of HDACs under study. Three days after the PTI, the expression of HDAC2 was increased in neurons of the damaged hemisphere. The activity of HDAC2 and HDAC8 was elevated 7 days after the ischemia both in neurons and astrocytes of the studied brain structures; the activity of HDAC8 was also increased 14 days after the ischemia. It is notable that the expression of class I HDACs in the intact hemisphere changes in the same way as their expression in the living tissue of the damaged hemisphere. HDAC1 was found both in the nuclei and cytoplasm of the brain cells; HDAC2 was predominantly localized in the nuclei, and HDAC8 was predominantly observed in the cytoplasm. This in addition to the regulation of gene transcription indicates nontranscriptional activity of HDAC1 and HDAC8 during recovery of the brain tissue after the ischemia. HDAC2 and HDAC8 were identified as potential mediators in an early recovery period after stroke, suggesting that selective inhibitors and activators of HDACs can be considered for therapeutic approaches in this period.
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Affiliation(s)
- Svetlana Demyanenko
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, prospect Stachki 194/1, Rostov-on-Don, 344090, Russia.
| | - Maria Neginskaya
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, prospect Stachki 194/1, Rostov-on-Don, 344090, Russia
| | - Elena Berezhnaya
- Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, prospect Stachki 194/1, Rostov-on-Don, 344090, Russia
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74
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Yanginlar C, Logie C. HDAC11 is a regulator of diverse immune functions. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2017; 1861:54-59. [PMID: 29222071 DOI: 10.1016/j.bbagrm.2017.12.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/02/2017] [Accepted: 12/02/2017] [Indexed: 12/23/2022]
Abstract
Histone deacetylases deacetylate histone and non-histone protein targets. Aberrant HDAC expression and function have been observed in several diseases, which make these enzymes attractive treatment targets. Here, we summarize recent literature that addresses the roles of HDAC11 on the regulation of different immune cells including neutrophils, myeloid derived suppressor cells and T-cells. HDAC11 was initially identified as a negative regulator of the well-known anti-inflammatory cytokine IL-10. Hence, antagonizing HDAC11 activity may have anti-tumor potential, whereas activating HDAC11 may be useful to treat chronic inflammation or autoimmunity. However, to anticipate biological side-effects of HDAC11 modulators, more molecular insights will be required.
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Affiliation(s)
- Cansu Yanginlar
- Department of Molecular Biology, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Colin Logie
- Department of Molecular Biology, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands.
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75
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Abstract
Increasing evidence suggests a key role for tissue energy failure in the pathophysiology of multiple sclerosis (MS). Studies in experimental autoimmune encephalomyelitis (EAE), a commonly used model of MS, have been instrumental in illuminating the mechanisms that may be involved in compromising energy production. In this article, we review recent advances in EAE research focussing on factors that conspire to impair tissue energy metabolism, such as tissue hypoxia, mitochondrial dysfunction, production of reactive oxygen/nitrogen species, and sodium dysregulation, which are directly affected by energy insufficiency, and promote cellular damage. A greater understanding of how inflammation affects tissue energy balance may lead to novel and effective therapeutic strategies that ultimately will benefit not only people affected by MS but also people affected by the wide range of other neurological disorders in which neuroinflammation plays an important role.
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Affiliation(s)
- Roshni A Desai
- Department of Neuroinflammation, UCL Institute of Neurology, London, UK
| | - Kenneth J Smith
- Department of Neuroinflammation, UCL Institute of Neurology, London, UK
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76
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McKenzie AT, Moyon S, Wang M, Katsyv I, Song WM, Zhou X, Dammer EB, Duong DM, Aaker J, Zhao Y, Beckmann N, Wang P, Zhu J, Lah JJ, Seyfried NT, Levey AI, Katsel P, Haroutunian V, Schadt EE, Popko B, Casaccia P, Zhang B. Multiscale network modeling of oligodendrocytes reveals molecular components of myelin dysregulation in Alzheimer's disease. Mol Neurodegener 2017; 12:82. [PMID: 29110684 PMCID: PMC5674813 DOI: 10.1186/s13024-017-0219-3] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/17/2017] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Oligodendrocytes (OLs) and myelin are critical for normal brain function and have been implicated in neurodegeneration. Several lines of evidence including neuroimaging and neuropathological data suggest that Alzheimer's disease (AD) may be associated with dysmyelination and a breakdown of OL-axon communication. METHODS In order to understand this phenomenon on a molecular level, we systematically interrogated OL-enriched gene networks constructed from large-scale genomic, transcriptomic and proteomic data obtained from human AD postmortem brain samples. We then validated these networks using gene expression datasets generated from mice with ablation of major gene expression nodes identified in our AD-dysregulated networks. RESULTS The robust OL gene coexpression networks that we identified were highly enriched for genes associated with AD risk variants, such as BIN1 and demonstrated strong dysregulation in AD. We further corroborated the structure of the corresponding gene causal networks using datasets generated from the brain of mice with ablation of key network drivers, such as UGT8, CNP and PLP1, which were identified from human AD brain data. Further, we found that mice with genetic ablations of Cnp mimicked aspects of myelin and mitochondrial gene expression dysregulation seen in brain samples from patients with AD, including decreased protein expression of BIN1 and GOT2. CONCLUSIONS This study provides a molecular blueprint of the dysregulation of gene expression networks of OL in AD and identifies key OL- and myelination-related genes and networks that are highly associated with AD.
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Affiliation(s)
- Andrew T. McKenzie
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
- Medical Scientist Training Program, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Sarah Moyon
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
- Neuroscience Initiative, The City University of New York, Advanced Science Research Center, 85 St. Nicholas Terrace, New York, NY 10031 USA
| | - Minghui Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Igor Katsyv
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
- Medical Scientist Training Program, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Won-Min Song
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Xianxiao Zhou
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Eric B. Dammer
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Duc M. Duong
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322 USA
- Integrated Proteomics Core Facility, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Joshua Aaker
- Department of Neurology, The University of Chicago Pritzker School of Medicine, 5841 S. Maryland Avenue, Chicago, IL 60637 USA
| | - Yongzhong Zhao
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Noam Beckmann
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Pei Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Jun Zhu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - James J. Lah
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322 USA
- Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Nicholas T. Seyfried
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322 USA
- Integrated Proteomics Core Facility, Emory University School of Medicine, Atlanta, GA 30322 USA
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Allan I. Levey
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322 USA
- Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Pavel Katsel
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA
| | - Vahram Haroutunian
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA
- Mental Illness Research, Education, and Clinical Center (VISN 3), James J. Peters VA Medical Center, Bronx, NY 10468 USA
| | - Eric E. Schadt
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
| | - Brian Popko
- Department of Neurology, The University of Chicago Pritzker School of Medicine, 5841 S. Maryland Avenue, Chicago, IL 60637 USA
| | - Patrizia Casaccia
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
- Neuroscience Initiative, The City University of New York, Advanced Science Research Center, 85 St. Nicholas Terrace, New York, NY 10031 USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, 1470 Madison Avenue, Room S8-111, New York, NY 10029 USA
- Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029 USA
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Mathur D, Riffo-Campos AL, Castillo J, Haines JD, Vidaurre OG, Zhang F, Coret-Ferrer F, Casaccia P, Casanova B, Lopez-Rodas G. Bioenergetic Failure in Rat Oligodendrocyte Progenitor Cells Treated with Cerebrospinal Fluid Derived from Multiple Sclerosis Patients. Front Cell Neurosci 2017; 11:209. [PMID: 28775680 PMCID: PMC5517784 DOI: 10.3389/fncel.2017.00209] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/03/2017] [Indexed: 01/09/2023] Open
Abstract
In relapsing-remitting multiple sclerosis (RRMS) subtype, the patient’s brain itself is capable of repairing the damage, remyelinating the axon and recovering the neurological function. Cerebrospinal fluid (CSF) is in close proximity with brain parenchyma and contains a host of proteins and other molecules, which influence the cellular physiology, that may balance damage and repair of neurons and glial cells. The purpose of this study was to determine the pathophysiological mechanisms underpinning myelin repair in distinct clinical forms of MS and neuromyelitis optica (NMO) patients by studying the effect of diseased CSF on glucose metabolism and ATP synthesis. A cellular model with primary cultures of oligodendrocyte progenitor cells (OPCs) from rat cerebrum was employed, and cells were treated with CSF from distinct clinical forms of MS, NMO patients and neurological controls. Prior to comprehending mechanisms underlying myelin repair, we determine the best stably expressed reference genes in our experimental condition to accurately normalize our target mRNA transcripts. The GeNorm and NormFinder algorithms showed that mitochondrial ribosomal protein (Mrpl19), hypoxanthine guanine phosphoribosyl transferase (Hprt), microglobulin β2 (B2m), and transferrin receptor (Tfrc) were identified as the best reference genes in OPCs treated with MS subjects and were used for normalizing gene transcripts. The main findings on microarray gene expression profiling analysis on CSF treated OPCs cells revealed a disturbed carbohydrate metabolism and ATP synthesis in MS and NMO derived CSF treated OPCs. In addition, using STRING program, we investigate whether gene–gene interaction affected the whole network in our experimental conditions. Our findings revealed downregulated expression of genes involved in carbohydrate metabolism, and that glucose metabolism impairment and reduced ATP availability for cellular damage repair clearly differentiate more benign forms from the most aggressive forms and worst prognosis in MS patients.
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Affiliation(s)
- Deepali Mathur
- Department of Functional Biology, University of ValenciaValencia, Spain.,Department of Biochemistry and Molecular Biology, INCLIVA Biomedical Research Institute, University of ValenciaValencia, Spain
| | - Angela L Riffo-Campos
- Department of Biochemistry and Molecular Biology, INCLIVA Biomedical Research Institute, University of ValenciaValencia, Spain.,Laboratory of Molecular Pathology, Faculty of Medicine, University of La FronteraTemuco, Chile
| | - Josefa Castillo
- Department of Biochemistry and Molecular Biology, INCLIVA Biomedical Research Institute, University of ValenciaValencia, Spain
| | - Jeffery D Haines
- Department of Neuroscience, Genetics and Genomics, Icahn School of Medicine at Mount Sinai, New YorkNY, United States
| | - Oscar G Vidaurre
- Department of Neuroscience, Genetics and Genomics, Icahn School of Medicine at Mount Sinai, New YorkNY, United States
| | - Fan Zhang
- Department of Neuroscience, Genetics and Genomics, Icahn School of Medicine at Mount Sinai, New YorkNY, United States
| | | | - Patrizia Casaccia
- Department of Neuroscience, Genetics and Genomics, Icahn School of Medicine at Mount Sinai, New YorkNY, United States
| | - Bonaventura Casanova
- CSUR-Esclerosi Múltiple, Unitat Mixta d'Esclerosi Múltiple i Neurorregeneració del'IIS-La Fe, Hospital Universitari i Politécnic La FeValencia, Spain
| | - Gerardo Lopez-Rodas
- Department of Biochemistry and Molecular Biology, INCLIVA Biomedical Research Institute, University of ValenciaValencia, Spain
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78
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Subcellular Distribution of HDAC1 in Neurotoxic Conditions Is Dependent on Serine Phosphorylation. J Neurosci 2017; 37:7547-7559. [PMID: 28663197 DOI: 10.1523/jneurosci.3000-16.2017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 05/25/2017] [Accepted: 06/18/2017] [Indexed: 11/21/2022] Open
Abstract
Calcium-dependent nuclear export of histone deacetylase 1 (HDAC1) was shown previously to precede axonal damage in culture, but the in vivo relevance of these findings and the potential posttranslational modifications of HDAC1 remained elusive. Using acute hippocampal slices from mice of either sex with genetic conditional ablation of Hdac1 in CA1 hippocampal neurons (i.e., Camk2a-cre;Hdac1fl/fl), we show significantly diminished axonal damage in response to neurotoxic stimuli. The protective effect of Hdac1 ablation was detected also in CA3 neurons in Grik4-cre;Hdac1fl/f mice, which were more resistant to the excitotoxic damage induced by intraventricular injection of kainic acid. The amino acid residues modulating HDAC1 subcellular localization were identified by site-directed mutagenesis, which identified serine residues 421 and 423 as critical for its nuclear localization. The physiological phosphorylation of HDAC1 was decreased by neurotoxic stimuli, which stimulated the phosphatase enzymatic activity of calcineurin. Treatment of neurons with the calcineurin inhibitors FK506 or cyclosporin A resulted in nuclear accumulation of phospho-HDAC1 and was neuroprotective. Together, our data identify HDAC1 and the phosphorylation of specific serine residues in the molecule as potential targets for neuroprotection.SIGNIFICANCE STATEMENT The importance of histone deacetylation in normal brain functions and pathological conditions is unquestionable, yet the molecular mechanisms responsible for the neurotoxic potential of histone deacetylase 1 (HDAC1) and its subcellular localization are not fully understood. Here, we use transgenic lines to define the in vivo relevance of HDAC1 and identify calcineurin-dependent serine dephosphorylation as the signal modulating the neurotoxic role of HDAC1 in response to neurotoxic stimuli.
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79
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Bonnaud EM, Suberbielle E, Malnou CE. Histone acetylation in neuronal (dys)function. Biomol Concepts 2017; 7:103-16. [PMID: 27101554 DOI: 10.1515/bmc-2016-0002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 02/25/2016] [Indexed: 02/05/2023] Open
Abstract
Cognitive functions require the expression of an appropriate pattern of genes in response to environmental stimuli. Over the last years, many studies have accumulated knowledge towards the understanding of molecular mechanisms that regulate neuronal gene expression. Epigenetic modifications have been shown to play an important role in numerous neuronal functions, from synaptic plasticity to learning and memory. In particular, histone acetylation is a central player in these processes. In this review, we present the molecular mechanisms of histone acetylation and summarize the data underlying the relevance of histone acetylation in cognitive functions in normal and pathological conditions. In the last part, we discuss the different mechanisms underlying the dysregulation of histone acetylation associated with neurological disorders, with a particular focus on environmental causes (stress, drugs, or infectious agents) that are linked to impaired histone acetylation.
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80
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Ruan H, Gao J, Qi X, Tao Y, Guo X, Guo Z, Zheng L, Song Y, Liao Y, Shen W. Visual experience dependent regulation of neuronal structure and function by histone deacetylase 1 in developing Xenopus tectum in vivo. Dev Neurobiol 2017; 77:947-962. [PMID: 28033671 DOI: 10.1002/dneu.22480] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 12/13/2016] [Accepted: 12/16/2016] [Indexed: 01/28/2023]
Abstract
Histone deacetylase 1 (HDAC1) is thought to play pivotal roles in neurogenesis and neurodegeneration. However, the role of HDAC1 in neuronal growth and structural plasticity in the developing brain in vivo remains unclear. Here, we show that in the optic tectum of Xenopus laevis, HDAC1 knockdown dramatically decreased the frequency of AMPAR-mediated synaptic currents and increased the frequency of GABAAR-mediated currents, whereas HDAC1 overexpression significantly decreased the frequency of GABAAR-mediated synaptic currents. Both HDAC1 knockdown and overexpression adversely affected dendritic arbor growth and visual experience-dependent structural plasticity. Furthermore, HDAC1 knockdown decreased BDNF expression via a mechanism that involves acetylation of specific histone H4 residues at lysine K5. In particular, the deficits in dendritic growth and visually guided avoidance behavior in HDAC1-knockdown tadpoles could be rescued by acute tectal infusion of BDNF. These results establish a relationship between HDAC1 expression, histone H4 modification and BDNF signaling in the visual-experience dependent regulation of dendritic growth, structural plasticity and function in intact animals in vivo. © 2016 Wiley Periodicals, Inc. Develop Neurobiol 77: 947-962, 2017.
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Affiliation(s)
- Hangze Ruan
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Juanmei Gao
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Xianjie Qi
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Yi Tao
- Department of Neurosurgery, Nanjing Medical University Affiliated Jiangsu Cancer Hospital, Nanjing, Jiangsu, 210029, China
| | - Xia Guo
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Zhaoyi Guo
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Lijun Zheng
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Yaling Song
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Yuan Liao
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
| | - Wanhua Shen
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, 310036, China
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81
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Lapato AS, Szu JI, Hasselmann JPC, Khalaj AJ, Binder DK, Tiwari-Woodruff SK. Chronic demyelination-induced seizures. Neuroscience 2017; 346:409-422. [PMID: 28153692 DOI: 10.1016/j.neuroscience.2017.01.035] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/13/2017] [Accepted: 01/23/2017] [Indexed: 12/11/2022]
Abstract
Multiple sclerosis (MS) patients are three to six times more likely to develop epilepsy compared to the rest of the population. Seizures are more common in patients with early onset or progressive forms of the disease and prognosticate rapid progression to disability and death. Gray matter atrophy, hippocampal lesions, interneuron loss, and elevated juxtacortical lesion burden have been identified in MS patients with seizures; however, translational studies aimed at elucidating the pathophysiological processes underlying MS epileptogenesis are limited. Here, we report that cuprizone-mediated chronically demyelinated (9-12weeks) mice exhibit marked changes to dorsal hippocampal electroencephalography (EEG) and evidence of overt seizure activity. Immunohistochemical (IHC) analyses within the hippocampal CA1 region revealed extensive demyelination, loss of parvalbumin (PV+) interneurons, widespread gliosis, and changes in aquaporin-4 (AQP4) expression. Our results suggest that chronically demyelinated mice are a valuable model with which we may begin to understand the mechanisms underlying demyelination-induced seizures.
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Affiliation(s)
- Andrew S Lapato
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USA; Center for Glial-Neuronal Interactions, University of California Riverside, Riverside, CA 92521, USA
| | - Jenny I Szu
- Neuroscience Graduate Program, University of California Riverside, Riverside, CA 92521, USA
| | - Jonathan P C Hasselmann
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USA
| | - Anna J Khalaj
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USA
| | - Devin K Binder
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USA; Neuroscience Graduate Program, University of California Riverside, Riverside, CA 92521, USA; Center for Glial-Neuronal Interactions, University of California Riverside, Riverside, CA 92521, USA
| | - Seema K Tiwari-Woodruff
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USA; Neuroscience Graduate Program, University of California Riverside, Riverside, CA 92521, USA; Center for Glial-Neuronal Interactions, University of California Riverside, Riverside, CA 92521, USA.
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82
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Molecular Genetic and Epigenetic Basis of Multiple Sclerosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 958:65-90. [DOI: 10.1007/978-3-319-47861-6_6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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83
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Menzel L, Kleber L, Friedrich C, Hummel R, Dangel L, Winter J, Schmitz K, Tegeder I, Schäfer MKE. Progranulin protects against exaggerated axonal injury and astrogliosis following traumatic brain injury. Glia 2016; 65:278-292. [DOI: 10.1002/glia.23091] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 10/04/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Lutz Menzel
- Department of Anesthesiology; University Medical Center, Johannes Gutenberg-University, Mainz; Germany
| | - Lisa Kleber
- Department of Anesthesiology; University Medical Center, Johannes Gutenberg-University, Mainz; Germany
| | - Carina Friedrich
- Department of Anesthesiology; University Medical Center, Johannes Gutenberg-University, Mainz; Germany
| | - Regina Hummel
- Department of Anesthesiology; University Medical Center, Johannes Gutenberg-University, Mainz; Germany
| | - Larissa Dangel
- Department of Anesthesiology; University Medical Center, Johannes Gutenberg-University, Mainz; Germany
| | - Jennifer Winter
- Institute of Human Genetics, University Medical Center, Johannes Gutenberg-University, Mainz; Germany
- Focus Program Translational Neurosciences (FTN) of the Johannes Gutenberg-University, Mainz; Germany
| | - Katja Schmitz
- Clinical Pharmacology; Goethe-University Hospital; Frankfurt Germany
| | - Irmgard Tegeder
- Clinical Pharmacology; Goethe-University Hospital; Frankfurt Germany
| | - Michael K. E. Schäfer
- Department of Anesthesiology; University Medical Center, Johannes Gutenberg-University, Mainz; Germany
- Focus Program Translational Neurosciences (FTN) of the Johannes Gutenberg-University, Mainz; Germany
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84
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Ganai SA, Ramadoss M, Mahadevan V. Histone Deacetylase (HDAC) Inhibitors - emerging roles in neuronal memory, learning, synaptic plasticity and neural regeneration. Curr Neuropharmacol 2016; 14:55-71. [PMID: 26487502 PMCID: PMC4787286 DOI: 10.2174/1570159x13666151021111609] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 08/23/2015] [Accepted: 10/08/2015] [Indexed: 11/22/2022] Open
Abstract
Epigenetic regulation of neuronal signalling through histone acetylation dictates transcription programs that govern neuronal memory, plasticity and learning paradigms. Histone Acetyl Transferases (HATs) and Histone Deacetylases (HDACs) are antagonistic enzymes that regulate gene expression through acetylation and deacetylation of histone proteins around which DNA is wrapped inside a eukaryotic cell nucleus. The epigenetic control of HDACs and the cellular imbalance between HATs and HDACs dictate disease states and have been implicated in muscular dystrophy, loss of memory, neurodegeneration and autistic disorders. Altering gene expression profiles through inhibition of HDACs is now emerging as a powerful technique in therapy. This review presents evolving applications of HDAC inhibitors as potential drugs in neurological research and therapy. Mechanisms that govern their
expression profiles in neuronal signalling, plasticity and learning will be covered. Promising and exciting possibilities of HDAC inhibitors in memory formation, fear conditioning, ischemic stroke and neural regeneration have been detailed.
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Affiliation(s)
| | | | - Vijayalakshmi Mahadevan
- School of Chemical & Biotechnology SASTRA University Tirumalaisamudram, Thanjavur - 613 401 India.
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85
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Nakamura S, Nakanishi A, Takazawa M, Okihiro S, Urano S, Fukui K. Ionomycin-induced calcium influx induces neurite degeneration in mouse neuroblastoma cells: analysis of a time-lapse live cell imaging system. Free Radic Res 2016; 50:1214-1225. [PMID: 27573976 DOI: 10.1080/10715762.2016.1227074] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reactive oxygen species induce neuronal cell death. However, the detailed mechanisms of cell death have not yet been elucidated. Previously, we reported neurite degeneration before the induction of cell death. Here, we attempted to elucidate the mechanisms of neurite degeneration before the induction of cell death using the neuroblastoma N1E-115 cell line and a time-lapse live cell imaging system. Treatment with the calcium ionophore ionomycin induced cell death and neurite degeneration in a concentration- and time-dependent manner. Treatment with a low concentration of ionomycin immediately produced a significant calcium influx into the intracellular region in N1E-115 cells. After 1-h incubation with ionomycin, the fluorescence emission of MitoSOXTM increased significantly compared to the control. Finally, analysis using a new mitochondrial specific fluorescence dye, MitoPeDPP, indicated that treatment with ionomycin significantly increased the mitochondrial lipid hydroperoxide production in N1E-115 cells. The fluorescence emissions of Fluo-4 AM and MitoPeDPP were detected in the cell soma and neurite regions in ionomycin-treated N1E-115 cells. However, the emissions of neurites were much lower than those of the cell soma. TBARS values of ionomycin-treated cells significantly increased compared to the control. These results indicate that ionomycin induces calcium influx into the intracellular region and reactive oxygen species production in N1E-115 cells. Lipid hydroperoxide production was induced in ionomycin-treated N1E-115 cells. Calcium influx into the intracellular region is a possible activator of neurite degeneration.
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Affiliation(s)
- Saki Nakamura
- a Molecular Cell Biology Laboratory, Systems Engineering and Science , Graduate School of Engineering and Science, Shibaura Institute of Technology , Saitama , Japan
| | - Ayumi Nakanishi
- b Molecular Cell Biology Laboratory, Department of Bioscience and Engineering , College of Systems Engineering and Sciences, Shibaura Institute of Technology , Saitama , Japan
| | - Minami Takazawa
- b Molecular Cell Biology Laboratory, Department of Bioscience and Engineering , College of Systems Engineering and Sciences, Shibaura Institute of Technology , Saitama , Japan
| | - Shunsuke Okihiro
- a Molecular Cell Biology Laboratory, Systems Engineering and Science , Graduate School of Engineering and Science, Shibaura Institute of Technology , Saitama , Japan
| | - Shiro Urano
- b Molecular Cell Biology Laboratory, Department of Bioscience and Engineering , College of Systems Engineering and Sciences, Shibaura Institute of Technology , Saitama , Japan
| | - Koji Fukui
- a Molecular Cell Biology Laboratory, Systems Engineering and Science , Graduate School of Engineering and Science, Shibaura Institute of Technology , Saitama , Japan.,b Molecular Cell Biology Laboratory, Department of Bioscience and Engineering , College of Systems Engineering and Sciences, Shibaura Institute of Technology , Saitama , Japan
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Bazou D, Ng MR, Song JW, Chin SM, Maimon N, Munn LL. Flow-induced HDAC1 phosphorylation and nuclear export in angiogenic sprouting. Sci Rep 2016; 6:34046. [PMID: 27669993 PMCID: PMC5037418 DOI: 10.1038/srep34046] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 08/17/2016] [Indexed: 01/02/2023] Open
Abstract
Angiogenesis requires the coordinated growth and migration of endothelial cells (ECs), with each EC residing in the vessel wall integrating local signals to determine whether to remain quiescent or undergo morphogenesis. These signals include vascular endothelial growth factor (VEGF) and flow-induced mechanical stimuli such as interstitial flow, which are both elevated in the tumor microenvironment. However, it is not clear how VEGF signaling and mechanobiological activation due to interstitial flow cooperate during angiogenesis. Here, we show that endothelial morphogenesis is histone deacetylase-1- (HDAC1) dependent and that interstitial flow increases the phosphorylation of HDAC1, its activity, and its export from the nucleus. Furthermore, we show that HDAC1 inhibition decreases endothelial morphogenesis and matrix metalloproteinase-14 (MMP14) expression. Our results suggest that HDAC1 modulates angiogenesis in response to flow, providing a new target for modulating vascularization in the clinic.
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Affiliation(s)
- Despina Bazou
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Mei Rosa Ng
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Jonathan W Song
- Department of Mechanical and Aerospace Engineering, Ohio State University, E406 201 W. 19th Avenue, Columbus, OH 43210, USA
| | - Shan Min Chin
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Nir Maimon
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Lance L Munn
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
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Scekic-Zahirovic J, Sendscheid O, El Oussini H, Jambeau M, Sun Y, Mersmann S, Wagner M, Dieterlé S, Sinniger J, Dirrig-Grosch S, Drenner K, Birling MC, Qiu J, Zhou Y, Li H, Fu XD, Rouaux C, Shelkovnikova T, Witting A, Ludolph AC, Kiefer F, Storkebaum E, Lagier-Tourenne C, Dupuis L. Toxic gain of function from mutant FUS protein is crucial to trigger cell autonomous motor neuron loss. EMBO J 2016; 35:1077-97. [PMID: 26951610 PMCID: PMC4868956 DOI: 10.15252/embj.201592559] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 01/28/2016] [Accepted: 02/01/2016] [Indexed: 12/12/2022] Open
Abstract
FUS is an RNA-binding protein involved in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Cytoplasmic FUS-containing aggregates are often associated with concomitant loss of nuclear FUS Whether loss of nuclear FUS function, gain of a cytoplasmic function, or a combination of both lead to neurodegeneration remains elusive. To address this question, we generated knockin mice expressing mislocalized cytoplasmic FUS and complete FUS knockout mice. Both mouse models display similar perinatal lethality with respiratory insufficiency, reduced body weight and length, and largely similar alterations in gene expression and mRNA splicing patterns, indicating that mislocalized FUS results in loss of its normal function. However, FUS knockin mice, but not FUS knockout mice, display reduced motor neuron numbers at birth, associated with enhanced motor neuron apoptosis, which can be rescued by cell-specific CRE-mediated expression of wild-type FUS within motor neurons. Together, our findings indicate that cytoplasmic FUS mislocalization not only leads to nuclear loss of function, but also triggers motor neuron death through a toxic gain of function within motor neurons.
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Affiliation(s)
- Jelena Scekic-Zahirovic
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
| | - Oliver Sendscheid
- Molecular Neurogenetics Laboratory, Max Planck Institute for Molecular Biomedicine, Muenster, Germany Faculty of Medicine, University of Muenster, Muenster, Germany
| | - Hajer El Oussini
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
| | - Mélanie Jambeau
- Department of Neurosciences, University of California, San Diego La Jolla, CA, USA Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA, USA
| | - Ying Sun
- Department of Neurosciences, University of California, San Diego La Jolla, CA, USA Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA, USA
| | - Sina Mersmann
- Molecular Neurogenetics Laboratory, Max Planck Institute for Molecular Biomedicine, Muenster, Germany Faculty of Medicine, University of Muenster, Muenster, Germany
| | - Marina Wagner
- Molecular Neurogenetics Laboratory, Max Planck Institute for Molecular Biomedicine, Muenster, Germany Faculty of Medicine, University of Muenster, Muenster, Germany
| | - Stéphane Dieterlé
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
| | - Jérome Sinniger
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
| | - Sylvie Dirrig-Grosch
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
| | - Kevin Drenner
- Department of Neurosciences, University of California, San Diego La Jolla, CA, USA Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA, USA
| | | | - Jinsong Qiu
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Yu Zhou
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Hairi Li
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Xiang-Dong Fu
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Caroline Rouaux
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
| | | | - Anke Witting
- Department of Neurology University of Ulm, Ulm, Germany
| | | | - Friedemann Kiefer
- Mammalian Cell Signaling Laboratory, Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, Muenster, Germany
| | - Erik Storkebaum
- Molecular Neurogenetics Laboratory, Max Planck Institute for Molecular Biomedicine, Muenster, Germany Faculty of Medicine, University of Muenster, Muenster, Germany
| | - Clotilde Lagier-Tourenne
- Department of Neurosciences, University of California, San Diego La Jolla, CA, USA Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA, USA
| | - Luc Dupuis
- Faculté de Médecine, INSERM U1118, Strasbourg, France Université de Strasbourg UMR_S1118, Strasbourg, France
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88
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Myelin Basic Protein Citrullination in Multiple Sclerosis: A Potential Therapeutic Target for the Pathology. Neurochem Res 2016; 41:1845-56. [PMID: 27097548 DOI: 10.1007/s11064-016-1920-2] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 03/02/2016] [Accepted: 04/13/2016] [Indexed: 10/21/2022]
Abstract
Multiple sclerosis (MS) is a multifactorial demyelinating disease characterized by neurodegenerative events and autoimmune response against myelin component. Citrullination or deimination, a post-translational modification of protein-bound arginine into citrulline, catalyzed by Ca(2+) dependent peptidylarginine deiminase enzyme (PAD), plays an essential role in physiological processes include gene expression regulation, apoptosis and the plasticity of the central nervous system, while aberrant citrullination can generate new epitopes, thus involving in the initiation and/or progression of autoimmune disorder like MS. Myelin basic protein (MBP) is the major myelin protein and is generally considered to maintain the stability of the myelin sheath. This review describes the MBP citrullination and its consequence, as well as offering further support for the "inside-out" hypothesis that MS is primarily a neurodegenerative disease with secondary inflammatory demyelination. In addition, it discusses the role of MBP citrullination in the immune inflammation and explores the potential of inhibition of PAD enzymes as a therapeutic strategy for the disease.
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89
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Al-Amin MM, Sultana R, Sultana S, Rahman MM, Reza HM. Astaxanthin ameliorates prenatal LPS-exposed behavioral deficits and oxidative stress in adult offspring. BMC Neurosci 2016; 17:11. [PMID: 26856812 PMCID: PMC4746928 DOI: 10.1186/s12868-016-0245-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Accepted: 01/28/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Prenatal maternal lipopolysaccharide (LPS) exposure leads to behavioral deficits such as depression, anxiety, and schizophrenia in the adult lives. LPS-exposure resulted in the production of cytokines and oxidative damage. On the contrary, astaxanthin is a carotenoid compound, showed neuroprotective properties via its antioxidant capacity. This study examines the effect of astaxanthin on the prenatal maternal LPS-induced postnatal behavioral deficit in mice. RESULTS We found that prenatal LPS-exposed mice showed extensive immobile phase in the tail suspension test, higher frequent head dipping in the hole-board test and greater hypolocomotion in the open field test. All these values were statistically significant (p < 0.05). In addition, a marked elevation of the level of lipid peroxidation, advanced protein oxidation product, nitric oxide, while a pronounced depletion of antioxidant enzymes (superoxide dismutase, catalase and glutathione) were observed in the adult offspring mice that were prenatally exposed to LPS. To the contrary, 6-weeks long treatment with astaxanthin significantly improved all behavioral deficits (p < 0.05) and diminished prenatal LPS-induced oxidative stress markers in the brain and liver. CONCLUSIONS Taken together, these results suggest that prenatal maternal LPS-exposure leads to behavioral deficits in the adults, while astaxanthin ameliorates the behavioral deficits presumably via its antioxidant property.
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Affiliation(s)
- Md Mamun Al-Amin
- Department of Pharmaceutical Sciences, North South University, Plot 15, Block B, Bashundhara, Dhaka, 1229, Bangladesh.
- The Queensland Brain Institute, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia.
| | - Rabeya Sultana
- Department of Pharmaceutical Sciences, North South University, Plot 15, Block B, Bashundhara, Dhaka, 1229, Bangladesh.
| | - Sharmin Sultana
- Department of Pharmaceutical Sciences, North South University, Plot 15, Block B, Bashundhara, Dhaka, 1229, Bangladesh.
| | - Md Mahbubur Rahman
- Department of Pharmaceutical Sciences, North South University, Plot 15, Block B, Bashundhara, Dhaka, 1229, Bangladesh.
| | - Hasan Mahmud Reza
- Department of Pharmaceutical Sciences, North South University, Plot 15, Block B, Bashundhara, Dhaka, 1229, Bangladesh.
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90
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Tajiri N, De La Peña I, Acosta SA, Kaneko Y, Tamir S, Landesman Y, Carlson R, Shacham S, Borlongan CV. A Nuclear Attack on Traumatic Brain Injury: Sequestration of Cell Death in the Nucleus. CNS Neurosci Ther 2016; 22:306-15. [PMID: 26842647 PMCID: PMC5067638 DOI: 10.1111/cns.12501] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 11/25/2015] [Accepted: 11/27/2015] [Indexed: 11/28/2022] Open
Abstract
Background Exportin 1 (XPO1/CRM1) plays prominent roles in the regulation of nuclear protein export. Selective inhibitors of nuclear export (SINE) are small orally bioavailable molecules that serve as drug‐like inhibitors of XPO1, with potent anti‐cancer properties. Traumatic brain injury (TBI) presents with a secondary cell death characterized by neuroinflammation that is putatively regulated by nuclear receptors. Aims and Results Here, we report that the SINE compounds (KPT‐350 or KPT‐335) sequestered TBI‐induced neuroinflammation‐related proteins (NF‐kB, AKT, FOXP1) within the nucleus of cultured primary rat cortical neurons, which coincided with protection against TNF‐α (20 ng/mL)‐induced neurotoxicity as shown by at least 50% and 100% increments in preservation of cell viability and cellular enzymatic activity, respectively, compared to non‐treated neuronal cells (P's < 0.05). In parallel, using an in vivo controlled cortical impact (CCI) model of TBI, we demonstrate that adult Sprague‐Dawley rats treated post‐injury with SINE compounds exhibited significant reductions in TBI‐induced behavioral and histological deficits. Animals that received KPT‐350 orally starting at 2 h post‐TBI and once a day thereafter over the next 4 days exhibited significantly better motor coordination, and balance in the rotorod test and motor asymmetry test by 100–200% improvements, as early as 4 h after initial SINE compound injection that was sustained during subsequent KPT‐350 dosing, and throughout the 18‐day post‐TBI study period compared to vehicle treatment (P's < 0.05). Moreover, KPT‐350 reduced cortical core impact area and peri‐impact cell death compared to vehicle treatment (P's < 0.05). Conclusions Both in vitro and in vivo experiments revealed that KPT‐350 increased XPO1, AKT, and FOXP1 nuclear expression and relegated NF‐kB expression within the neuronal nuclei. Altogether, these findings advance the utility of SINE compounds to stop trafficking of cell death proteins within the nucleus as an efficacious treatment for TBI.
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Affiliation(s)
- Naoki Tajiri
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Ike De La Peña
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Sandra A Acosta
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Yuji Kaneko
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | | | | | | | | | - Cesar V Borlongan
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
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91
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Guo X, Ruan H, Li X, Qin L, Tao Y, Qi X, Gao J, Gan L, Duan S, Shen W. Subcellular Localization of Class I Histone Deacetylases in the Developing Xenopus tectum. Front Cell Neurosci 2016; 9:510. [PMID: 26793062 PMCID: PMC4709447 DOI: 10.3389/fncel.2015.00510] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 12/20/2015] [Indexed: 11/13/2022] Open
Abstract
Histone deacetylases (HDACs) are thought to localize in the nucleus to regulate gene transcription and play pivotal roles in neurogenesis, apoptosis, and plasticity. However, the subcellular distribution of class I HDACs in the developing brain remains unclear. Here, we show that HDAC1 and HDAC2 are located in both the mitochondria and the nucleus in the Xenopus laevis stage 34 tectum and are mainly restricted to the nucleus following further brain development. HDAC3 is widely present in the mitochondria, nucleus, and cytoplasm during early tectal development and is mainly distributed in the nucleus in stage 45 tectum. In contrast, HDAC8 is broadly located in the mitochondria, nucleus, and cytoplasm during tectal development. These data demonstrate that HDAC1, HDAC2, and HDAC3 are transiently localized in the mitochondria and that the subcellular distribution of class I HDACs in the Xenopus tectum is heterogeneous. Furthermore, we observed that spherical mitochondria accumulate in the cytoplasm at earlier stages, whereas elongated mitochondria are evenly distributed in the tectum at later stages. The activity of histone acetylation (H4K12) remains low in mitochondria during tectal development. Pharmacological blockades of HDACs using a broad spectrum HDAC inhibitor of Trichostatin A (TSA) or specific class I HDAC inhibitors of MS-275 and MGCD0103 decrease the number of mitochondria in the tectum at stage 34. These findings highlight a link between the subcellular distribution of class I HDACs and mitochondrial dynamics in the developing optic tectum of Xenopus laevis.
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Affiliation(s)
- Xia Guo
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China
| | - Hangze Ruan
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China
| | - Xia Li
- Key Laboratory of Medical Neurobiology of Ministry of Health of China, Key Laboratory of Neurobiology, Department of Neurobiology, Zhejiang University School of Medicine Hangzhou, China
| | - Liming Qin
- Key Laboratory of Medical Neurobiology of Ministry of Health of China, Key Laboratory of Neurobiology, Department of Neurobiology, Zhejiang University School of Medicine Hangzhou, China
| | - Yi Tao
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University Nanjing, China
| | - Xianjie Qi
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China
| | - Juanmei Gao
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China
| | - Lin Gan
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China
| | - Shumin Duan
- Key Laboratory of Medical Neurobiology of Ministry of Health of China, Key Laboratory of Neurobiology, Department of Neurobiology, Zhejiang University School of Medicine Hangzhou, China
| | - Wanhua Shen
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China
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92
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Pharmacological modulation of HDAC1 and HDAC6 in vivo in a zebrafish model: Therapeutic implications for Parkinson’s disease. Pharmacol Res 2016; 103:328-39. [DOI: 10.1016/j.phrs.2015.11.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/27/2015] [Accepted: 11/29/2015] [Indexed: 11/22/2022]
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93
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Harris LG, Wang SH, Mani SK, Kasiganesan H, Chou CJ, Menick DR. Evidence for a non-canonical role of HDAC5 in regulation of the cardiac Ncx1 and Bnp genes. Nucleic Acids Res 2015; 44:3610-7. [PMID: 26704971 PMCID: PMC4856964 DOI: 10.1093/nar/gkv1496] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 12/10/2015] [Indexed: 11/12/2022] Open
Abstract
Class IIa histone deacetylases (HDACs) are very important for tissue specific gene regulation in development and pathology. Because class IIa HDAC catalytic activity is low, their exact molecular roles have not been fully elucidated. Studies have suggested that class IIa HDACs may serve as a scaffold to recruit the catalytically active class I HDAC complexes to their substrate. Here we directly address whether the class IIa HDAC, HDAC5 may function as a scaffold to recruit co-repressor complexes to promoters. We examined two well-characterized cardiac promoters, the sodium calcium exchanger (Ncx1) and the brain natriuretic peptide (Bnp) whose hypertrophic upregulation is mediated by both class I and IIa HDACs. Selective inhibition of class IIa HDACs did not prevent adrenergic stimulated Ncx1 upregulation, however HDAC5 knockout prevented pressure overload induced Ncx1 upregulation. Using the HDAC5((-/-)) mouse we show that HDAC5 is required for the interaction of the HDAC1/2/Sin3a co-repressor complexes with the Nkx2.5 and YY1 transcription factors and critical for recruitment of the HDAC1/Sin3a co-repressor complex to either the Ncx1 or Bnp promoter. Our novel findings support a non-canonical role of class IIa HDACs in the scaffolding of transcriptional regulatory complexes, which may be relevant for therapeutic intervention for pathologies.
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Affiliation(s)
- Lillianne G Harris
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, SC 29425, USA
| | - Sabina H Wang
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, SC 29425, USA
| | - Santhosh K Mani
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, SC 29425, USA
| | - Harinath Kasiganesan
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, SC 29425, USA
| | - C James Chou
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, SC 29425, USA
| | - Donald R Menick
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, SC 29425, USA Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC 29425, USA
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94
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Guglielmetti C, Veraart J, Roelant E, Mai Z, Daans J, Van Audekerke J, Naeyaert M, Vanhoutte G, Delgado Y Palacios R, Praet J, Fieremans E, Ponsaerts P, Sijbers J, Van der Linden A, Verhoye M. Diffusion kurtosis imaging probes cortical alterations and white matter pathology following cuprizone induced demyelination and spontaneous remyelination. Neuroimage 2015; 125:363-377. [PMID: 26525654 DOI: 10.1016/j.neuroimage.2015.10.052] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/15/2015] [Accepted: 10/19/2015] [Indexed: 12/21/2022] Open
Abstract
Although MRI is the gold standard for the diagnosis and monitoring of multiple sclerosis (MS), current conventional MRI techniques often fail to detect cortical alterations and provide little information about gliosis, axonal damage and myelin status of lesioned areas. Diffusion tensor imaging (DTI) and diffusion kurtosis imaging (DKI) provide sensitive and complementary measures of the neural tissue microstructure. Additionally, specific white matter tract integrity (WMTI) metrics modelling the diffusion in white matter were recently derived. In the current study we used the well-characterized cuprizone mouse model of central nervous system demyelination to assess the temporal evolution of diffusion tensor (DT), diffusion kurtosis tensor (DK) and WMTI-derived metrics following acute inflammatory demyelination and spontaneous remyelination. While DT-derived metrics were unable to detect cuprizone induced cortical alterations, the mean kurtosis (MK) and radial kurtosis (RK) were found decreased under cuprizone administration, as compared to age-matched controls, in both the motor and somatosensory cortices. The MK remained decreased in the motor cortices at the end of the recovery period, reflecting long lasting impairment of myelination. In white matter, DT, DK and WMTI-derived metrics enabled the detection of cuprizone induced changes differentially according to the stage and the severity of the lesion. More specifically, the MK, the RK and the axonal water fraction (AWF) were the most sensitive for the detection of cuprizone induced changes in the genu of the corpus callosum, a region less affected by cuprizone administration. Additionally, microgliosis was associated with an increase of MK and RK during the acute inflammatory demyelination phase. In regions undergoing severe demyelination, namely the body and splenium of the corpus callosum, DT-derived metrics, notably the mean diffusion (MD) and radial diffusion (RD), were among the best discriminators between cuprizone and control groups, hence highlighting their ability to detect both acute and long lasting changes. Interestingly, WMTI-derived metrics showed the aptitude to distinguish between the different stages of the disease. Both the intra-axonal diffusivity (Da) and the AWF were found to be decreased in the cuprizone treated group, Da specifically decreased during the acute inflammatory demyelinating phase whereas the AWF decrease was associated to the spontaneous remyelination and the recovery period. Altogether our results demonstrate that DKI is sensitive to alterations of cortical areas and provides, along with WMTI metrics, information that is complementary to DT-derived metrics for the characterization of demyelination in both white and grey matter and subsequent inflammatory processes associated with a demyelinating event.
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Affiliation(s)
- C Guglielmetti
- Bio-Imaging Lab, University of Antwerp, Antwerp, Belgium
| | - J Veraart
- iMinds - Vision Lab, Department of Physics, University of Antwerp, Antwerp, Belgium; Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA
| | - E Roelant
- StatUa Center for Statistics, University of Antwerp, Antwerp, Belgium
| | - Z Mai
- Bio-Imaging Lab, University of Antwerp, Antwerp, Belgium
| | - J Daans
- Experimental Cell Transplantation Group, Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | | | - M Naeyaert
- Bio-Imaging Lab, University of Antwerp, Antwerp, Belgium
| | - G Vanhoutte
- Bio-Imaging Lab, University of Antwerp, Antwerp, Belgium
| | | | - J Praet
- Bio-Imaging Lab, University of Antwerp, Antwerp, Belgium
| | - E Fieremans
- Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA
| | - P Ponsaerts
- Experimental Cell Transplantation Group, Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | - J Sijbers
- iMinds - Vision Lab, Department of Physics, University of Antwerp, Antwerp, Belgium
| | | | - M Verhoye
- Bio-Imaging Lab, University of Antwerp, Antwerp, Belgium
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95
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A novel histone deacetylase 1 and 2 isoform-specific inhibitor alleviates experimental Parkinson's disease. Neurobiol Aging 2015; 37:103-116. [PMID: 26545632 DOI: 10.1016/j.neurobiolaging.2015.10.001] [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: 05/06/2015] [Revised: 09/17/2015] [Accepted: 10/02/2015] [Indexed: 11/24/2022]
Abstract
With increased histone deacetylase (HDAC) activity and histone hypoacetylation being implicated in neurodegeneration, HDAC inhibitors have been reported to have considerable therapeutic potential. Yet, existing inhibitors lack specificity and may show substantial adverse effect. In this study, we identified a novel HDAC1/2 isoform-specific inhibitor, K560, with protective effects against 1-methyl-4-phenylpyridinium (MPP(+))- and/or 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neuronal death in both in vitro and in vivo Parkinson's disease model. K560 attenuated cell death induced by MPP(+) in differentiated SH-SY5Y cells through the sustained expression of an antiapoptotic protein, X-linked inhibitor of apoptosis (XIAP). Inhibition of XIAP expression by locked nucleic acid antisense oligonucleotides abolished the protective effect of K560. Inactivation of mitogen-activated protein kinase cascades, reduced p53 phosphorylation, and down-regulation of p53-upregulated modulator of apoptosis on K560 treatment were also observed. Furthermore, pre- and post-oral administration of K560 to mice prevented MPTP-induced loss of dopaminergic neurons in substantia nigra, suggesting that selective inhibition of HDAC1 and HDAC2 by K560 may pave the way to new strategies for Parkinson's disease treatment.
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96
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Mastroeni D, Delvaux E, Nolz J, Tan Y, Grover A, Oddo S, Coleman PD. Aberrant intracellular localization of H3k4me3 demonstrates an early epigenetic phenomenon in Alzheimer's disease. Neurobiol Aging 2015; 36:3121-3129. [PMID: 26553823 DOI: 10.1016/j.neurobiolaging.2015.08.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/27/2015] [Accepted: 08/14/2015] [Indexed: 11/19/2022]
Abstract
We have previously reported in Alzheimer's disease (AD) the mislocalization of epigenetic molecules between the cell nucleus and the cytoplasm. We have extended our finding to include the aberrant localization of histone 3 trimethylation on lysine 4 (H3k4me3), an epigenetic mark associated with actively transcribing genes as well as those poised for transcription. These findings raise the question of where the ectopic localization of H3k4me3 fits within the cascade of cell biological events in the progression of AD. We, therefore, examined the expression and intracellular location of H3k4me3 as a function of Braak stage and also in relation to a series of tau markers that are indicative of disease state. Both lines of evidence showed that ectopic localization of H3k4me3 is early in the course of disease. Because of the known role of H3k4me3 in the expression of synaptic genes, our data suggest an epigenetic role in synaptic deficits early in the course of AD.
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Affiliation(s)
- Diego Mastroeni
- ASU-Banner Neurodegenerative Disease Research Center, Biodesign Institute and School of Life Sciences, Arizona State University, Tempe, AZ, USA; L.J. Roberts Alzheimer's Disease Center, Banner Sun Health Research Institute, Sun City, AZ, USA; Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Faculty of Health, Medicine and Life Sciences, European Graduate School of Neuroscience (EURON), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Elaine Delvaux
- ASU-Banner Neurodegenerative Disease Research Center, Biodesign Institute and School of Life Sciences, Arizona State University, Tempe, AZ, USA; L.J. Roberts Alzheimer's Disease Center, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Jennifer Nolz
- ASU-Banner Neurodegenerative Disease Research Center, Biodesign Institute and School of Life Sciences, Arizona State University, Tempe, AZ, USA; L.J. Roberts Alzheimer's Disease Center, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Yuyan Tan
- Department of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Andrew Grover
- L.J. Roberts Alzheimer's Disease Center, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Salvatore Oddo
- Oddo Laboratory-Neurobiology of Aging and Dementia, Banner Sun Health Research Institute, Sun City, AZ, USA; Department of Basic Medical Sciences, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, USA
| | - Paul D Coleman
- ASU-Banner Neurodegenerative Disease Research Center, Biodesign Institute and School of Life Sciences, Arizona State University, Tempe, AZ, USA; L.J. Roberts Alzheimer's Disease Center, Banner Sun Health Research Institute, Sun City, AZ, USA.
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97
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Abstract
Neurons are extremely polarized cells. Axon lengths often exceed the dimension of the neuronal cell body by several orders of magnitude. These extreme axonal lengths imply that neurons have mastered efficient mechanisms for long distance signaling between soma and synaptic terminal. These elaborate mechanisms are required for neuronal development and maintenance of the nervous system. Neurons can fine-tune long distance signaling through calcium wave propagation and bidirectional transport of proteins, vesicles, and mRNAs along microtubules. The signal transmission over extreme lengths also ensures that information about axon injury is communicated to the soma and allows for repair mechanisms to be engaged. This review focuses on the different mechanisms employed by neurons to signal over long axonal distances and how signals are interpreted in the soma, with an emphasis on proteomic studies. We also discuss how proteomic approaches could help further deciphering the signaling mechanisms operating over long distance in axons.
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Affiliation(s)
- Atsushi Saito
- From the ‡Department of Anatomy and Neurobiology, Washington University in St Louis, School of Medicine, St Louis, 63110, Missouri
| | - Valeria Cavalli
- From the ‡Department of Anatomy and Neurobiology, Washington University in St Louis, School of Medicine, St Louis, 63110, Missouri.
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98
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Praet J, Guglielmetti C, Berneman Z, Van der Linden A, Ponsaerts P. Cellular and molecular neuropathology of the cuprizone mouse model: clinical relevance for multiple sclerosis. Neurosci Biobehav Rev 2015; 47:485-505. [PMID: 25445182 DOI: 10.1016/j.neubiorev.2014.10.004] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/18/2014] [Accepted: 10/01/2014] [Indexed: 01/30/2023]
Abstract
The cuprizone mouse model allows the investigation of the complex molecular mechanisms behind nonautoimmune-mediated demyelination and spontaneous remyelination. While it is generally accepted that oligodendrocytes are specifically vulnerable to cuprizone intoxication due to their high metabolic demands, a comprehensive overview of the etiology of cuprizone-induced pathology is still missing to date. In this review we extensively describe the physico-chemical mode of action of cuprizone and discuss the molecular and enzymatic mechanisms by which cuprizone induces metabolic stress, oligodendrocyte apoptosis, myelin degeneration and eventually axonal and neuronal pathology. In addition, we describe the dual effector function of the immune system which tightly controls demyelination by effective induction of oligodendrocyte apoptosis, but in contrast also paves the way for fast and efficient remyelination by the secretion of neurotrophic factors and the clearance of cellular and myelinic debris. Finally, we discuss the many clinical symptoms that can be observed following cuprizone treatment, and how these strengthened the cuprizone model as a useful tool to study human multiple sclerosis, schizophrenia and epilepsy.
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99
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Intracellular Protein Shuttling: A Mechanism Relevant for Myelin Repair in Multiple Sclerosis? Int J Mol Sci 2015; 16:15057-85. [PMID: 26151843 PMCID: PMC4519887 DOI: 10.3390/ijms160715057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 12/15/2022] Open
Abstract
A prominent feature of demyelinating diseases such as multiple sclerosis (MS) is the degeneration and loss of previously established functional myelin sheaths, which results in impaired signal propagation and axonal damage. However, at least in early disease stages, partial replacement of lost oligodendrocytes and thus remyelination occur as a result of resident oligodendroglial precursor cell (OPC) activation. These cells represent a widespread cell population within the adult central nervous system (CNS) that can differentiate into functional myelinating glial cells to restore axonal functions. Nevertheless, the spontaneous remyelination capacity in the adult CNS is inefficient because OPCs often fail to generate new oligodendrocytes due to the lack of stimulatory cues and the presence of inhibitory factors. Recent studies have provided evidence that regulated intracellular protein shuttling is functionally involved in oligodendroglial differentiation and remyelination activities. In this review we shed light on the role of the subcellular localization of differentiation-associated factors within oligodendroglial cells and show that regulation of intracellular localization of regulatory factors represents a crucial process to modulate oligodendroglial maturation and myelin repair in the CNS.
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100
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Abstract
Myelinated nerve fibers have evolved to enable fast and efficient transduction of electrical signals in the nervous system. To act as an electric insulator, the myelin sheath is formed as a multilamellar membrane structure by the spiral wrapping and subsequent compaction of the oligodendroglial plasma membrane around central nervous system (CNS) axons. Current evidence indicates that the myelin sheath is more than an inert insulating membrane structure. Oligodendrocytes are metabolically active and functionally connected to the subjacent axon via cytoplasmic-rich myelinic channels for movement of macromolecules to and from the internodal periaxonal space under the myelin sheath. This review summarizes our current understanding of how myelin is generated and also the role of oligodendrocytes in supporting the long-term integrity of myelinated axons.
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Affiliation(s)
- Mikael Simons
- Cellular Neuroscience, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany Department of Neurology, University of Göttingen, 37075 Göttingen, Germany
| | - Klaus-Armin Nave
- Department of Neurogenetics, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany
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