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Spencer PS, Valdes Angues R, Palmer VS. Nodding syndrome: A role for environmental biotoxins that dysregulate MECP2 expression? J Neurol Sci 2024; 462:123077. [PMID: 38850769 DOI: 10.1016/j.jns.2024.123077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 05/15/2024] [Accepted: 05/30/2024] [Indexed: 06/10/2024]
Abstract
Nodding syndrome is an epileptic encephalopathy associated with neuroinflammation and tauopathy. This initially pediatric brain disease, which has some clinical overlap with Methyl-CpG-binding protein 2 (MECP2) Duplication Syndrome, has impacted certain impoverished East African communities coincident with local civil conflict and internal displacement, conditions that forced dependence on contaminated food and water. A potential role in Nodding syndrome for certain biotoxins (freshwater cyanotoxins plus/minus mycotoxins) with neuroinflammatory, excitotoxic, tauopathic, and MECP2-dysregulating properties, is considered here for the first time.
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Affiliation(s)
- Peter S Spencer
- Department of Neurology, School of Medicine and Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, USA; Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, USA; Gulu University School of Medicine, Gulu, Uganda.
| | - Raquel Valdes Angues
- Department of Neurology, School of Medicine and Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, USA
| | - Valerie S Palmer
- Department of Neurology, School of Medicine and Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, USA; Gulu University School of Medicine, Gulu, Uganda
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2
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Song QH, Zhao KX, Huang S, Chen T, He L. Escape from X-chromosome inactivation and sex differences in Alzheimer's disease. Rev Neurosci 2024; 35:341-354. [PMID: 38157427 DOI: 10.1515/revneuro-2023-0108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/24/2023] [Indexed: 01/03/2024]
Abstract
Sex differences exist in the onset and progression of Alzheimer's disease. Globally, women have a higher prevalence, while men with Alzheimer's disease experience earlier mortality and more pronounced cognitive decline than women. The cause of sex differences in Alzheimer's disease remains unclear. Accumulating evidence suggests the potential role of X-linked genetic factors in the sex difference of Alzheimer's disease (AD). During embryogenesis, a remarkable process known as X-chromosome inactivation (XCI) occurs in females, leading to one of the X chromosomes undergoing transcriptional inactivation, which balances the effects of two X chromosomes in females. Nevertheless, certain genes exceptionally escape from XCI, which provides a basis for dual expression dosage of specific genes in females. Based on recent research findings, we explore key escape genes and their potential therapeutic use associated with Alzheimer's disease. Also, we discuss their possible role in driving the sex differences in Alzheimer's disease. This will provide new perspectives for precision medicine and gender-specific treatment of AD.
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Affiliation(s)
- Qing-Hua Song
- Department of Pharmacology, China Pharmaceutical University, No. 24 Tong Jia Xiang, Nanjing 210009, Jiangsu Province, China
| | - Ke-Xuan Zhao
- Department of Pharmacology, China Pharmaceutical University, No. 24 Tong Jia Xiang, Nanjing 210009, Jiangsu Province, China
| | - Shuai Huang
- Department of Pharmacology, China Pharmaceutical University, No. 24 Tong Jia Xiang, Nanjing 210009, Jiangsu Province, China
| | - Tong Chen
- Department of Pharmacology, China Pharmaceutical University, No. 24 Tong Jia Xiang, Nanjing 210009, Jiangsu Province, China
| | - Ling He
- Department of Pharmacology, China Pharmaceutical University, No. 24 Tong Jia Xiang, Nanjing 210009, Jiangsu Province, China
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3
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Nassar A, Kodi T, Satarker S, Gurram PC, Fayaz SM, Nampoothiri M. Astrocytic transcription factors REST, YY1, and putative microRNAs in Parkinson's disease and advanced therapeutic strategies. Gene 2024; 892:147898. [PMID: 37832803 DOI: 10.1016/j.gene.2023.147898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 07/10/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
Transcription factors (TF) and microRNAs are regulatory factors in astrocytes and are linked to several Parkinson's disease (PD) progression causes, such as disruption of glutamine transporters in astrocytes and concomitant disrupted glutamine uptake and inflammation. REST, a crucial TF, has been documented as an epigenetic repressor that limits the expression of neuronal genes in non-neural cells. REST activity is significantly linked to its corepressors in astrocytes, specifically histone deacetylases (HDACs), CoREST, and MECP2. Another REST-regulating TF, YY1, has been studied in astrocytes, and its interaction with REST has been investigated. In this review, the molecular processes that support the astrocytic control of REST and YY1 in terms of the regulation of glutamate transporter EAAT2 were addressed in a more detailed and comprehensive manner. Both TFs' function in astrocytes and how astrocyte abnormalities cause PD is still a mystery. Moreover, microRNAs (short non-coding RNAs) are key regulators that have been correlated to the expression and regulation of numerous genes linked to PD. The identification of numerous miRs that are engaged in astrocyte dysfunction that triggers PD has been shown. The term "Gut-brain axis" refers to the two systems' mutual communication. Gut microbial dysbiosis, which mediates an imbalance of the gut-brain axis, might contribute to neurodegenerative illnesses through altered astrocytic regulation. New treatment approaches to modify the gut-brain axis and prevent astrocytic repercussions have also been investigated in this review.
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Affiliation(s)
- Ajmal Nassar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Triveni Kodi
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Sairaj Satarker
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Prasada Chowdari Gurram
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - S M Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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4
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Sokol DK, Lahiri DK. Neurodevelopmental disorders and microcephaly: how apoptosis, the cell cycle, tau and amyloid-β precursor protein APPly. Front Mol Neurosci 2023; 16:1201723. [PMID: 37808474 PMCID: PMC10556256 DOI: 10.3389/fnmol.2023.1201723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 08/08/2023] [Indexed: 10/10/2023] Open
Abstract
Recent studies promote new interest in the intersectionality between autism spectrum disorder (ASD) and Alzheimer's Disease. We have reported high levels of Amyloid-β Precursor Protein (APP) and secreted APP-alpha (sAPPa ) and low levels of amyloid-beta (Aβ) peptides 1-40 and 1-42 (Aβ40, Aβ42) in plasma and brain tissue from children with ASD. A higher incidence of microcephaly (head circumference less than the 3rd percentile) associates with ASD compared to head size in individuals with typical development. The role of Aβ peptides as contributors to acquired microcephaly in ASD is proposed. Aβ may lead to microcephaly via disruption of neurogenesis, elongation of the G1/S cell cycle, and arrested cell cycle promoting apoptosis. As the APP gene exists on Chromosome 21, excess Aβ peptides occur in Trisomy 21-T21 (Down's Syndrome). Microcephaly and some forms of ASD associate with T21, and therefore potential mechanisms underlying these associations will be examined in this review. Aβ peptides' role in other neurodevelopmental disorders that feature ASD and acquired microcephaly are reviewed, including dup 15q11.2-q13, Angelman and Rett syndrome.
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Affiliation(s)
- Deborah K. Sokol
- Section of Pediatrics, Department of Neurology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Debomoy K. Lahiri
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, United States
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, United States
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5
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Jeremic D, Jiménez-Díaz L, Navarro-López JD. Targeting epigenetics: A novel promise for Alzheimer's disease treatment. Ageing Res Rev 2023; 90:102003. [PMID: 37422087 DOI: 10.1016/j.arr.2023.102003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/30/2023] [Accepted: 07/03/2023] [Indexed: 07/10/2023]
Abstract
So far, the search for a cure for Alzheimer Disease (AD) has been unsuccessful. The only approved drugs attenuate some symptoms, but do not halt the progress of this disease, which affects 50 million people worldwide and will increase its incidence in the coming decades. Such scenario demands new therapeutic approaches to fight against this devastating dementia. In recent years, multi-omics research and the analysis of differential epigenetic marks in AD subjects have contributed to our understanding of AD; however, the impact of epigenetic research is yet to be seen. This review integrates the most recent data on pathological processes and epigenetic changes relevant for aging and AD, as well as current therapies targeting epigenetic machinery in clinical trials. Evidence shows that epigenetic modifications play a key role in gene expression, which could provide multi-target preventative and therapeutic approaches in AD. Both novel and repurposed drugs are employed in AD clinical trials due to their epigenetic effects, as well as increasing number of natural compounds. Given the reversible nature of epigenetic modifications and the complexity of gene-environment interactions, the combination of epigenetic-based therapies with environmental strategies and drugs with multiple targets might be needed to properly help AD patients.
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Affiliation(s)
- Danko Jeremic
- University of Castilla-La Mancha, NeuroPhysiology & Behavior Lab, Biomedical Research Center (CRIB), School of Medicine of Ciudad Real, Spain
| | - Lydia Jiménez-Díaz
- University of Castilla-La Mancha, NeuroPhysiology & Behavior Lab, Biomedical Research Center (CRIB), School of Medicine of Ciudad Real, Spain.
| | - Juan D Navarro-López
- University of Castilla-La Mancha, NeuroPhysiology & Behavior Lab, Biomedical Research Center (CRIB), School of Medicine of Ciudad Real, Spain.
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6
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Brase L, You SF, D'Oliveira Albanus R, Del-Aguila JL, Dai Y, Novotny BC, Soriano-Tarraga C, Dykstra T, Fernandez MV, Budde JP, Bergmann K, Morris JC, Bateman RJ, Perrin RJ, McDade E, Xiong C, Goate AM, Farlow M, Sutherland GT, Kipnis J, Karch CM, Benitez BA, Harari O. Single-nucleus RNA-sequencing of autosomal dominant Alzheimer disease and risk variant carriers. Nat Commun 2023; 14:2314. [PMID: 37085492 PMCID: PMC10121712 DOI: 10.1038/s41467-023-37437-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/15/2023] [Indexed: 04/23/2023] Open
Abstract
Genetic studies of Alzheimer disease (AD) have prioritized variants in genes related to the amyloid cascade, lipid metabolism, and neuroimmune modulation. However, the cell-specific effect of variants in these genes is not fully understood. Here, we perform single-nucleus RNA-sequencing (snRNA-seq) on nearly 300,000 nuclei from the parietal cortex of AD autosomal dominant (APP and PSEN1) and risk-modifying variant (APOE, TREM2 and MS4A) carriers. Within individual cell types, we capture genes commonly dysregulated across variant groups. However, specific transcriptional states are more prevalent within variant carriers. TREM2 oligodendrocytes show a dysregulated autophagy-lysosomal pathway, MS4A microglia have dysregulated complement cascade genes, and APOEε4 inhibitory neurons display signs of ferroptosis. All cell types have enriched states in autosomal dominant carriers. We leverage differential expression and single-nucleus ATAC-seq to map GWAS signals to effector cell types including the NCK2 signal to neurons in addition to the initially proposed microglia. Overall, our results provide insights into the transcriptional diversity resulting from AD genetic architecture and cellular heterogeneity. The data can be explored on the online browser ( http://web.hararilab.org/SNARE/ ).
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Affiliation(s)
- Logan Brase
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Shih-Feng You
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Ricardo D'Oliveira Albanus
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | | | - Yaoyi Dai
- Baylor College of Medicine, Houston, TX, USA
| | - Brenna C Novotny
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Carolina Soriano-Tarraga
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Taitea Dykstra
- Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Center for Brain Immunology and Glia (BIG), Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Maria Victoria Fernandez
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - John P Budde
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Kristy Bergmann
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - John C Morris
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Randall J Bateman
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Richard J Perrin
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Eric McDade
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Chengjie Xiong
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Alison M Goate
- Ronald M. Loeb Center for Alzheimer's Disease, Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Martin Farlow
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Greg T Sutherland
- School of Medical Sciences and Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Jonathan Kipnis
- Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Center for Brain Immunology and Glia (BIG), Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Celeste M Karch
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Bruno A Benitez
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Oscar Harari
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA.
- Hope Center for Neurological Disorders, Washington University School of Medicine in St. Louis, St. Louis, MO, USA.
- NeuroGenomics and Informatics, Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO, USA.
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7
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Zhang H, Yu G, Li J, Tu C, Hui Y, Liu D, Chen M, Zhang J, Gong X, Guo G. Overexpressing lnc240 Rescues Learning and Memory Dysfunction in Hepatic Encephalopathy Through miR-1264-5p/MEF2C Axis. Mol Neurobiol 2023; 60:2277-2294. [PMID: 36645630 DOI: 10.1007/s12035-023-03205-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/29/2022] [Indexed: 01/17/2023]
Abstract
Hepatic encephalopathy (HE) is a nervous system disease caused by severe liver diseases and different degrees of learning and memory dysfunction. Long non-coding RNA (lncRNA) is highly expressed in the brain and plays important roles in central nervous system diseases like Alzheimer's disease. In the present work, we found that the expression of lnc240 in the hippocampus of HE mice was significantly downregulated, but its pathogenesis in HE has not been clarified. This study aimed to explore the effects of lnc240 on the cognitive function of HE. The expression of lnc240, miR-1264-5p, and MEF2C was analyzed with RNA-seq and further determined by qRT-PCR in HE mouse. Double luciferase reporter gene testing confirmed the relationship between lnc240, MEF2C, and miR-1264-5p. The functional role of lnc240 and MEF2C in vitro and in vivo was evaluated by qRT-PCR, western blot analysis, immunofluorescence staining, Golgi staining, electrophysiology, and Morris water maze. The expression of lnc240 was decreased in HE mice. The overexpression of lnc240 could significantly downregulate miR-1264-5p and upregulate MEF2C, also increasing the amplitude and frequency of mEPSC in primary cultured hippocampal neurons. The overexpression of miR-1264-5p reversed the effect of lnc240 on MEF2C. Moreover, in vivo experiments have shown that the overexpression of lnc240 could improve HE mice's spatial learning and memory functions. Golgi staining suggested that overexpression of lnc240 could increase the density and maturity of dendritic spines in hippocampal neurons of HE mice. Lnc240 can regulate the expression of MEF2C through miR-1264-5p and regulate the synaptic plasticity of hippocampal neurons, thereby saving the learning and memory dysfunction in HE mice, suggesting that lnc240 might be a potential therapeutic target for the treatment of HE.
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Affiliation(s)
- Huijie Zhang
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China.,Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, Guangdong, China
| | - Guangyin Yu
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Jiong Li
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Chunyi Tu
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Yuqing Hui
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Danlei Liu
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Meiying Chen
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Jifeng Zhang
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China.
| | - Xiaobing Gong
- Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China.
| | - Guoqing Guo
- Neuroscience Laboratory for Cognitive and Developmental Disorders, Department of Anatomy, Medical College of Jinan University, Guangzhou, 510630, Guangdong, China.
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8
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Quach TT, Stratton HJ, Khanna R, Mackey-Alfonso S, Deems N, Honnorat J, Meyer K, Duchemin AM. Neurodegenerative Diseases: From Dysproteostasis, Altered Calcium Signalosome to Selective Neuronal Vulnerability to AAV-Mediated Gene Therapy. Int J Mol Sci 2022; 23:ijms232214188. [PMID: 36430666 PMCID: PMC9694178 DOI: 10.3390/ijms232214188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
Abstract
Despite intense research into the multifaceted etiology of neurodegenerative diseases (ND), they remain incurable. Here we provide a brief overview of several major ND and explore novel therapeutic approaches. Although the cause (s) of ND are not fully understood, the accumulation of misfolded/aggregated proteins in the brain is a common pathological feature. This aggregation may initiate disruption of Ca++ signaling, which is an early pathological event leading to altered dendritic structure, neuronal dysfunction, and cell death. Presently, ND gene therapies remain unidimensional, elusive, and limited to modifying one pathological feature while ignoring others. Considering the complexity of signaling cascades in ND, we discuss emerging therapeutic concepts and suggest that deciphering the molecular mechanisms involved in dendritic pathology may broaden the phenotypic spectrum of ND treatment. An innovative multiplexed gene transfer strategy that employs silencing and/or over-expressing multiple effectors could preserve vulnerable neurons before they are lost. Such therapeutic approaches may extend brain health span and ameliorate burdensome chronic disease states.
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Affiliation(s)
- Tam T. Quach
- Institute for Behavioral Medicine Research, Wexner Medical Center, The Ohio State University, Columbus, OH 43210, USA
- INSERM U1217/CNRS UMR5310, Université de Lyon, Université Claude Bernard Lyon 1, 69677 Lyon, France
| | | | - Rajesh Khanna
- Department of Molecular Pathobiology, New York University, New York, NY 10010, USA
| | - Sabrina Mackey-Alfonso
- Institute for Behavioral Medicine Research, Wexner Medical Center, The Ohio State University, Columbus, OH 43210, USA
| | - Nicolas Deems
- Institute for Behavioral Medicine Research, Wexner Medical Center, The Ohio State University, Columbus, OH 43210, USA
| | - Jérome Honnorat
- INSERM U1217/CNRS UMR5310, Université de Lyon, Université Claude Bernard Lyon 1, 69677 Lyon, France
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, 69677 Lyon, France
- SynatAc Team, Institut NeuroMyoGène, 69677 Lyon, France
| | - Kathrin Meyer
- The Research Institute of Nationwide Children Hospital, Columbus, OH 43205, USA
- Department of Pediatric, The Ohio State University, Columbus, OH 43210, USA
| | - Anne-Marie Duchemin
- Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, OH 43210, USA
- Correspondence: ; Tel.: +1-614-293-5517; Fax: +1-614-293-7599
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9
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Shu H, Ding F, Zhou J, Xue Y, Zhao D, Zeng J, Ma J. Boosting single-cell gene regulatory network reconstruction via bulk-cell transcriptomic data. Brief Bioinform 2022; 23:6693602. [PMID: 36070863 DOI: 10.1093/bib/bbac389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/12/2022] Open
Abstract
Computational recovery of gene regulatory network (GRN) has recently undergone a great shift from bulk-cell towards designing algorithms targeting single-cell data. In this work, we investigate whether the widely available bulk-cell data could be leveraged to assist the GRN predictions for single cells. We infer cell-type-specific GRNs from both the single-cell RNA sequencing data and the generic GRN derived from the bulk cells by constructing a weakly supervised learning framework based on the axial transformer. We verify our assumption that the bulk-cell transcriptomic data are a valuable resource, which could improve the prediction of single-cell GRN by conducting extensive experiments. Our GRN-transformer achieves the state-of-the-art prediction accuracy in comparison to existing supervised and unsupervised approaches. In addition, we show that our method can identify important transcription factors and potential regulations for Alzheimer's disease risk genes by using the predicted GRN. Availability: The implementation of GRN-transformer is available at https://github.com/HantaoShu/GRN-Transformer.
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Affiliation(s)
- Hantao Shu
- Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Fan Ding
- Department of Computer Science, Purdue University, IN 47907, United States
| | - Jingtian Zhou
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, United States.,Bioinformatics Program, University of California, San Diego, La Jolla, CA 92093, United States
| | - Yexiang Xue
- Department of Computer Science, Purdue University, IN 47907, United States
| | - Dan Zhao
- Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Jianyang Zeng
- Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Jianzhu Ma
- Institute for Artificial Intelligence, Peking University, Beijing 100091, China
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10
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Wang L, Zhen H, Sun Y, Rong S, Li B, Song Z, Liu Z, Li Z, Ding J, Yang H, Zhang X, Sun H, Nie C. Plasma Exo-miRNAs Correlated with AD-Related Factors of Chinese Individuals Involved in Aβ Accumulation and Cognition Decline. Mol Neurobiol 2022; 59:6790-6804. [PMID: 36040555 PMCID: PMC9425792 DOI: 10.1007/s12035-022-03012-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 07/29/2022] [Indexed: 11/17/2022]
Abstract
Numerous studies have investigated the risk factors of Alzheimer’s disease (AD); however, AD-risk factors related miRNAs were rarely reported. In this study, AD-risk factor related miRNAs of 105 Chinese individuals (45 AD patients and 60 cognitively normal controls) were investigated. The results showed that Hsa-miR-185-5p, Hsa-miR-20a-5p, and Hsa-miR-497-5p were related to AD and education, Hsa-miR-185-5p, Hsa-miR-181c-5p, Hsa-miR-664a-3p, Hsa-miR-27a-3p, Hsa-miR-451a, and Hsa-miR-320a were related to AD and depression. Target prediction of above miRNAs showed that these miRNAs were involved in the generation and clearance of amyloid-beta (Aβ), important molecules related to cognition, and disease-activated microglia response to AD. It is worth noting that Hsa-miR-185-5p was related to both education and depression, whose decreased expression pattern in AD patients was alleviated by education and enhanced by depression, and participates in Aβ generation and accumulation. Our results indicated that certain education and depression factors can contribute to AD progression by modulating miRNA expression, implying that preventive interventions might alter AD progression in Chinese patients.
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Affiliation(s)
- Lifang Wang
- BGI-Shenzhen, Shenzhen, 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China.,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Hefu Zhen
- BGI-Shenzhen, Shenzhen, 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China.,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Yuzhe Sun
- BGI-Shenzhen, Shenzhen, 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China.,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Shuang Rong
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, China
| | - Benchao Li
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, China
| | - Zhijie Song
- BGI-Shenzhen, Shenzhen, 518083, China.,James D. Watson Institute of Genome Sciences, Hangzhou, 310058, China
| | - Zhili Liu
- BGI-Shenzhen, Shenzhen, 518083, China.,James D. Watson Institute of Genome Sciences, Hangzhou, 310058, China
| | - Zhiming Li
- BGI-Shenzhen, Shenzhen, 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China.,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Jiahong Ding
- BGI-Shenzhen, Shenzhen, 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China.,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Huanming Yang
- BGI-Shenzhen, Shenzhen, 518083, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiuqing Zhang
- BGI-Shenzhen, Shenzhen, 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China.,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Haixi Sun
- BGI-Shenzhen, Shenzhen, 518083, China. .,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China. .,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China. .,James D. Watson Institute of Genome Sciences, Hangzhou, 310058, China. .,BGI-Beijing, Beijing, 102601, China.
| | - Chao Nie
- BGI-Shenzhen, Shenzhen, 518083, China. .,China National GeneBank, BGI-Shenzhen, Shenzhen, 518120, China. .,Shenzhen Key Laboratory of Neurogenomics, BGI-Shenzhen, Shenzhen, 518083, China.
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11
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Zhang Z, Zhao Y. Progress on the roles of MEF2C in neuropsychiatric diseases. Mol Brain 2022; 15:8. [PMID: 34991657 PMCID: PMC8740500 DOI: 10.1186/s13041-021-00892-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 12/23/2021] [Indexed: 12/15/2022] Open
Abstract
Myocyte Enhancer Factor 2 C (MEF2C), one of the transcription factors of the MADS-BOX family, is involved in embryonic brain development, neuronal formation and differentiation, as well as in the growth and pruning of axons and dendrites. MEF2C is also involved in the development of various neuropsychiatric disorders, such as autism spectrum disorders (ASD), epilepsy, schizophrenia and Alzheimer’s disease (AD). Here, we review the relationship between MEF2C and neuropsychiatric disorders, and provide further insights into the mechanism of these diseases.
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Affiliation(s)
- Zhikun Zhang
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China.,Department of Mental Health, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530007, Guangxi, China
| | - Yongxiang Zhao
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China.
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12
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Arnoriaga-Rodríguez M, Mayneris-Perxachs J, Contreras-Rodríguez O, Burokas A, Ortega-Sanchez JA, Blasco G, Coll C, Biarnés C, Castells-Nobau A, Puig J, Garre-Olmo J, Ramos R, Pedraza S, Brugada R, Vilanova JC, Serena J, Barretina J, Gich J, Pérez-Brocal V, Moya A, Fernández-Real X, Ramio-Torrentà L, Pamplona R, Sol J, Jové M, Ricart W, Portero-Otin M, Maldonado R, Fernández-Real JM. Obesity-associated deficits in inhibitory control are phenocopied to mice through gut microbiota changes in one-carbon and aromatic amino acids metabolic pathways. Gut 2021; 70:2283-2296. [PMID: 33514598 PMCID: PMC8588299 DOI: 10.1136/gutjnl-2020-323371] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/16/2020] [Accepted: 01/08/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Inhibitory control (IC) is critical to keep long-term goals in everyday life. Bidirectional relationships between IC deficits and obesity are behind unhealthy eating and physical exercise habits. METHODS We studied gut microbiome composition and functionality, and plasma and faecal metabolomics in association with cognitive tests evaluating inhibitory control (Stroop test) and brain structure in a discovery (n=156), both cross-sectionally and longitudinally, and in an independent replication cohort (n=970). Faecal microbiota transplantation (FMT) in mice evaluated the impact on reversal learning and medial prefrontal cortex (mPFC) transcriptomics. RESULTS An interplay among IC, brain structure (in humans) and mPFC transcriptomics (in mice), plasma/faecal metabolomics and the gut metagenome was found. Obesity-dependent alterations in one-carbon metabolism, tryptophan and histidine pathways were associated with IC in the two independent cohorts. Bacterial functions linked to one-carbon metabolism (thyX,dut, exodeoxyribonuclease V), and the anterior cingulate cortex volume were associated with IC, cross-sectionally and longitudinally. FMT from individuals with obesity led to alterations in mice reversal learning. In an independent FMT experiment, human donor's bacterial functions related to IC deficits were associated with mPFC expression of one-carbon metabolism-related genes of recipient's mice. CONCLUSION These results highlight the importance of targeting obesity-related impulsive behaviour through the induction of gut microbiota shifts.
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Affiliation(s)
- María Arnoriaga-Rodríguez
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- CIBER Pathophysiology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
| | - Jordi Mayneris-Perxachs
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- CIBER Pathophysiology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
| | - Oren Contreras-Rodríguez
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL) and CIBERSAM, Barcelona, Spain
| | - Aurelijus Burokas
- Laboratory of Neuropharmacology, Deparment of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Present address: Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av. 7, LT-10257 Vilnius, Lithuania
| | - Juan-Antonio Ortega-Sanchez
- Laboratory of Neuropharmacology, Deparment of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Gerard Blasco
- Institute of Diagnostic Imaging (IDI)-Research Unit (IDIR), Parc Sanitari Pere Virgili, Barcelona, Spain
- Medical Imaging, Girona Biomedical Research Institute (IdibGi), Girona, Spain
| | - Claudia Coll
- Neuroimmunology and Multiple Sclerosis Unit, Deparment of Neurology, Dr. Josep Trueta University Hospital, Girona, Spain
| | - Carles Biarnés
- Medical Imaging, Girona Biomedical Research Institute (IdibGi), Girona, Spain
| | - Anna Castells-Nobau
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- CIBER Pathophysiology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
| | - Josep Puig
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Institute of Diagnostic Imaging (IDI)-Research Unit (IDIR), Parc Sanitari Pere Virgili, Barcelona, Spain
- Medical Imaging, Girona Biomedical Research Institute (IdibGi), Girona, Spain
| | - Josep Garre-Olmo
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Research Group on Aging, Health and Disability, Girona Biomedical Research Institute, Health Assistance Institute, Girona, Spain
| | - Rafel Ramos
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Barcelona, Catalonia, Spain
| | - Salvador Pedraza
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Medical Imaging, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- Deparment of Radiology, Dr. Josep Trueta University Hospital, Girona, Spain
| | - Ramon Brugada
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Cardiovascular Genetics Center, CIBER-CV, Girona Biomedical Research Institute (IDIBGI), Dr. Josep Trueta University Hospital, Girona, Spain
- Biomedical Research Networking Center on Cardiovascular Diseases (CIBERCV), Madrid, Spain
- Deparment of Cardiology, Dr. Josep Trueta University Hospital, Girona, Spain
| | - Joan C Vilanova
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Medical Imaging, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- Deparment of Radiology, Dr. Josep Trueta University Hospital, Girona, Spain
| | - Joaquín Serena
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Department of Neurology, Dr. Josep Trueta University Hospital, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Jordi Barretina
- Girona Biomedical Research Institute (IdibGi), Dr. Josep Trueta University Hospital, Girona, Spain
| | - Jordi Gich
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Neurodegeneration and Neuroinflammation Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
| | - Vicente Pérez-Brocal
- Joint Investigation Unit of FISABIO and I2Sysbio, University of València and CSIC, Valencia, Spain
- Biomedical Research Networking Center for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Andrés Moya
- Joint Investigation Unit of FISABIO and I2Sysbio, University of València and CSIC, Valencia, Spain
- Biomedical Research Networking Center for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Xavier Fernández-Real
- Institute of Mathematics, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Lluis Ramio-Torrentà
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
- Neuroimmunology and Multiple Sclerosis Unit, Deparment of Neurology, Dr. Josep Trueta University Hospital, Girona, Spain
- Department of Neurology, Dr. Josep Trueta University Hospital, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
- Neurodegeneration and Neuroinflammation Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Reinald Pamplona
- Metabolic Physiopathology Research Group, Experimental Medicine Department, Lleida University-Lleida Biochemical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Joaquim Sol
- Metabolic Physiopathology Research Group, Experimental Medicine Department, Lleida University-Lleida Biochemical Research Institute (UdL-IRBLleida), Lleida, Spain
- Institut Català de la Salut, Atenció Primària, Lleida, Spain
- Research Support Unit Lleida, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Lleida, Spain
| | - Mariona Jové
- Metabolic Physiopathology Research Group, Experimental Medicine Department, Lleida University-Lleida Biochemical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- CIBER Pathophysiology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
| | - Manuel Portero-Otin
- Metabolic Physiopathology Research Group, Experimental Medicine Department, Lleida University-Lleida Biochemical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Rafael Maldonado
- Laboratory of Neuropharmacology, Deparment of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Jose Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- CIBER Pathophysiology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
- Deparment of Medical Sciences, Faculty of Medicine, University of Girona, Girona, Spain
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13
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Colussi C, Grassi C. Epigenetic regulation of neural stem cells: The emerging role of nucleoporins. STEM CELLS (DAYTON, OHIO) 2021; 39:1601-1614. [PMID: 34399020 PMCID: PMC9290943 DOI: 10.1002/stem.3444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 07/28/2021] [Indexed: 11/06/2022]
Abstract
Nucleoporins (Nups) are components of the nuclear pore complex that, besides regulating nucleus-cytoplasmic transport, emerged as a hub for chromatin interaction and gene expression modulation. Specifically, Nups act in a dynamic manner both at specific gene level and in the topological organization of chromatin domains. As such, they play a fundamental role during development and determination of stemness/differentiation balance in stem cells. An increasing number of reports indicate the implication of Nups in many central nervous system functions with great impact on neurogenesis, neurophysiology, and neurological disorders. Nevertheless, the role of Nup-mediated epigenetic regulation in embryonic and adult neural stem cells (NSCs) is a field largely unexplored and the comprehension of their mechanisms of action is only beginning to be unveiled. After a brief overview of epigenetic mechanisms, we will present and discuss the emerging role of Nups as new effectors of neuroepigenetics and as dynamic platform for chromatin function with specific reference to the biology of NSCs.
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Affiliation(s)
- Claudia Colussi
- Istituto di Analisi dei Sistemi ed Informatica "Antonio Ruberti" (IASI)-CNR, Rome, Italy
| | - Claudio Grassi
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy.,Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
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14
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Kim SH, Ko YJ, Kim JY, Sim YJ. Treadmill Running Improves Spatial Learning Memory Through Inactivation of Nuclear Factor Kappa B/Mitogen-Activated Protein Kinase Signaling Pathway in Amyloid-β-Induced Alzheimer Disease Rats. Int Neurourol J 2021; 25:S35-43. [PMID: 34053209 PMCID: PMC8171239 DOI: 10.5213/inj.2142164.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/27/2021] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Exercise is known to reduce proinflammatory cytokines production and apoptosis. We investigated the effect of treadmill running on spatial learning memory in terms of activation of nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathway in Alzheimer disease (AD) rats. We also evaluated the effect of treadmill running on proinflammatory cytokine production and apoptosis. METHODS Using the stereotaxic frame, amyloid-β (Aβ) was injected into the lateral ventricle of the brain. The rats belong to treadmill running groups were forced to run on a motorized treadmill for 30 minutes per a day during 4 weeks, starting 3 days after Aβ injection. Morris water maze task was done for the determination of spatial learning memory. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, immunohistochemistry for cleaved caspase-3, and western blot for NF-κB, inhibitory protein of NF-κB (IκB), MAPK signaling pathway, tumor necrosis factor (TNF)-α, interleukin (IL)-1β were done. RESULTS Induction of AD increased proinflammatory cytokine secretion by activating the NF-κB/MAPK signaling pathway. These changes induced apoptosis in the hippocampus and reduced spatial learning memory. In contrast, treadmill running inactivated the NF-κB/MAPK signaling pathway and suppressed proinflammatory cytokine production. These changes inhibited apoptosis and improved spatial learning memory. CONCLUSION Current results showed that treadmill running promoted spatial learning memory through suppressing proinflammatory cytokine production and apoptosis via inactivation of NF-κB/MAPK signaling pathway. Treadmill exercise can be considered an effective intervention for symptom relieve of AD.
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Affiliation(s)
- Sang-Hoon Kim
- Department of Sport & Health Sciences, College of Art & Culture, Sangmyung University, Seoul, Korea
| | - Young Jun Ko
- Major in Sport Service Practice, College of Welfare Convergence, Kangnam University, Youngin, Korea
| | - Jee-Youn Kim
- School of Global Sport Studies, Korea University, Sejong, Korea
| | - Young-Je Sim
- Department of Physical Education, Kunsan National University, Gunsan, Korea
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15
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Sazonova MA, Sinyov VV, Ryzhkova AI, Sazonova MD, Kirichenko TV, Khotina VA, Khasanova ZB, Doroschuk NA, Karagodin VP, Orekhov AN, Sobenin IA. Some Molecular and Cellular Stress Mechanisms Associated with Neurodegenerative Diseases and Atherosclerosis. Int J Mol Sci 2021; 22:E699. [PMID: 33445687 PMCID: PMC7828120 DOI: 10.3390/ijms22020699] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic stress is a combination of nonspecific adaptive reactions of the body to the influence of various adverse stress factors which disrupt its homeostasis, and it is also a corresponding state of the organism's nervous system (or the body in general). We hypothesized that chronic stress may be one of the causes occurence of several molecular and cellular types of stress. We analyzed literary sources and considered most of these types of stress in our review article. We examined genes and mutations of nuclear and mitochondrial genomes and also molecular variants which lead to various types of stress. The end result of chronic stress can be metabolic disturbance in humans and animals, leading to accumulation of reactive oxygen species (ROS), oxidative stress, energy deficiency in cells (due to a decrease in ATP synthesis) and mitochondrial dysfunction. These changes can last for the lifetime and lead to severe pathologies, including neurodegenerative diseases and atherosclerosis. The analysis of literature allowed us to conclude that under the influence of chronic stress, metabolism in the human body can be disrupted, mutations of the mitochondrial and nuclear genome and dysfunction of cells and their compartments can occur. As a result of these processes, oxidative, genotoxic, and cellular stress can occur. Therefore, chronic stress can be one of the causes forthe occurrence and development of neurodegenerative diseases and atherosclerosis. In particular, chronic stress can play a large role in the occurrence and development of oxidative, genotoxic, and cellular types of stress.
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Affiliation(s)
- Margarita A. Sazonova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Vasily V. Sinyov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Anastasia I. Ryzhkova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
| | - Marina D. Sazonova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
| | - Tatiana V. Kirichenko
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Research Institute of Human Morphology, 117418 Moscow, Russia
| | - Victoria A. Khotina
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Research Institute of Human Morphology, 117418 Moscow, Russia
| | - Zukhra B. Khasanova
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Natalya A. Doroschuk
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Vasily P. Karagodin
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Department of Commodity Science and Expertise, Plekhanov Russian University of Economics, 125993 Moscow, Russia
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Research Institute of Human Morphology, 117418 Moscow, Russia
- Institute for Atherosclerosis Research, Skolkovo Innovative Centre, 143024 Moscow, Russia
| | - Igor A. Sobenin
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
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16
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Wang Q, Chen Y, Readhead B, Chen K, Su Y, Reiman EM, Dudley JT. Longitudinal data in peripheral blood confirm that PM20D1 is a quantitative trait locus (QTL) for Alzheimer's disease and implicate its dynamic role in disease progression. Clin Epigenetics 2020; 12:189. [PMID: 33298155 PMCID: PMC7724832 DOI: 10.1186/s13148-020-00984-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/18/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND While Alzheimer's disease (AD) remains one of the most challenging diseases to tackle, genome-wide genetic/epigenetic studies reveal many disease-associated risk loci, which sheds new light onto disease heritability, provides novel insights to understand its underlying mechanism and potentially offers easily measurable biomarkers for early diagnosis and intervention. METHODS We analyzed whole-genome DNA methylation data collected from peripheral blood in a cohort (n = 649) from the Alzheimer's Disease Neuroimaging Initiative (ADNI) and compared the DNA methylation level at baseline among participants diagnosed with AD (n = 87), mild cognitive impairment (MCI, n = 175) and normal controls (n = 162), to identify differentially methylated regions (DMRs). We also leveraged up to 4 years of longitudinal DNA methylation data, sampled at approximately 1 year intervals to model alterations in methylation levels at DMRs to delineate methylation changes associated with aging and disease progression, by linear mixed-effects (LME) modeling for the unchanged diagnosis groups (AD, MCI and control, respectively) and U-shape testing for those with changed diagnosis (converters). RESULTS When compared with controls, patients with MCI consistently displayed promoter hypomethylation at methylation QTL (mQTL) gene locus PM20D1. This promoter hypomethylation was even more prominent in patients with mild to moderate AD. This is in stark contrast with previously reported hypermethylation in hippocampal and frontal cortex brain tissues in patients with advanced-stage AD at this locus. From longitudinal data, we show that initial promoter hypomethylation of PM20D1 during MCI and early stage AD is reversed to eventual promoter hypermethylation in late stage AD, which helps to complete a fuller picture of methylation dynamics. We also confirm this observation in an independent cohort from the Religious Orders Study and Memory and Aging Project (ROSMAP) Study using DNA methylation and gene expression data from brain tissues as neuropathological staging (Braak score) advances. CONCLUSIONS Our results confirm that PM20D1 is an mQTL in AD and demonstrate that it plays a dynamic role at different stages of the disease. Further in-depth study is thus warranted to fully decipher its role in the evolution of AD and potentially explore its utility as a blood-based biomarker for AD.
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Affiliation(s)
- Qi Wang
- grid.215654.10000 0001 2151 2636ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ USA
| | - Yinghua Chen
- grid.418204.b0000 0004 0406 4925Banner Alzheimer’s Institute, Phoenix, AZ USA
| | - Benjamin Readhead
- grid.215654.10000 0001 2151 2636ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ USA
| | - Kewei Chen
- grid.418204.b0000 0004 0406 4925Banner Alzheimer’s Institute, Phoenix, AZ USA
| | - Yi Su
- grid.418204.b0000 0004 0406 4925Banner Alzheimer’s Institute, Phoenix, AZ USA
| | - Eric M. Reiman
- grid.215654.10000 0001 2151 2636ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ USA ,grid.418204.b0000 0004 0406 4925Banner Alzheimer’s Institute, Phoenix, AZ USA
| | - Joel T. Dudley
- grid.215654.10000 0001 2151 2636ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ USA ,grid.59734.3c0000 0001 0670 2351Icahn School of Medicine at Mount Sinai, New York, NY USA
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17
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Tiwari D, Jakhmola S, Pathak DK, Kumar R, Jha HC. Temporal In Vitro Raman Spectroscopy for Monitoring Replication Kinetics of Epstein-Barr Virus Infection in Glial Cells. ACS OMEGA 2020; 5:29547-29560. [PMID: 33225186 PMCID: PMC7676301 DOI: 10.1021/acsomega.0c04525] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/21/2020] [Indexed: 05/17/2023]
Abstract
Raman spectroscopy can be used as a tool to study virus entry and pathogen-driven manipulation of the host efficiently. To date, Epstein-Barr virus (EBV) entry and altered biochemistry of the glial cell upon infection are elusive. In this study, we detected biomolecular changes in human glial cells, namely, HMC-3 (microglia) and U-87 MG (astrocytes), at two variable cellular locations (nucleus and periphery) by Raman spectroscopy post-EBV infection at different time points. Two possible phenomena, one attributed to the response of the cell to viral attachment and invasion and the other involved in duplication of the virus followed by egress from the host cell, are investigated. These changes corresponded to unique Raman spectra associated with specific biomolecules in the infected and the uninfected cells. The Raman signals from the nucleus and periphery of the cell also varied, indicating differential biochemistry and signaling processes involved in infection progression at these locations. Molecules such as cholesterol, glucose, hyaluronan, phenylalanine, phosphoinositide, etc. are associated with the alterations in the cellular biochemical homeostasis. These molecules are mainly responsible for cellular processes such as lipid transport, cell proliferation, differentiation, and apoptosis in the cells. Raman signatures of these molecules at distinct time points of infection indicated their periodic involvement, depending on the stage of virus infection. Therefore, it is possible to discern the details of variability in EBV infection progression in glial cells at the biomolecular level using time-dependent in vitro Raman scattering.
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Affiliation(s)
- Deeksha Tiwari
- Discipline
of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552 Indore, India
| | - Shweta Jakhmola
- Discipline
of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552 Indore, India
| | - Devesh K. Pathak
- Discipline
of Physics, Indian Institute of Technology
Indore, Simrol, 453552 Indore, India
| | - Rajesh Kumar
- Discipline
of Physics, Indian Institute of Technology
Indore, Simrol, 453552 Indore, India
- Centre
for Advanced Electronics, Indian Institute
of Technology Indore, Simrol, 453552 Indore, India
| | - Hem Chandra Jha
- Discipline
of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552 Indore, India
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18
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Pejhan S, Siu VM, Ang LC, Del Bigio MR, Rastegar M. Differential brain region-specific expression of MeCP2 and BDNF in Rett Syndrome patients: a distinct grey-white matter variation. Neuropathol Appl Neurobiol 2020; 46:735-750. [PMID: 32246495 DOI: 10.1111/nan.12619] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 01/03/2020] [Accepted: 03/23/2020] [Indexed: 12/18/2022]
Abstract
INTRODUCTION AND OBJECTIVES Rett Syndrome (RTT) is a neurodevelopmental disorder caused by Methyl CpG Binding Protein 2 (MECP2) gene mutations. Previous studies of MeCP2 in the human brain showed variable and inconsistent mosaic-pattern immunolabelling, which has been interpreted as a reflection of activation-state variability. We aimed to study post mortem MeCP2 and BDNF (MeCP2 target) degradation and brain region-specific detection in relation to RTT pathophysiology. METHODS We investigated MeCP2 and BDNF stabilities in non-RTT human brains by immunohistochemical labelling and compared them in three brain regions of RTT and controls. RESULTS In surgically excised samples of human hippocampus and cerebellum, MeCP2 was universally detected. There was no significantly obvious difference between males and females. However, post mortem delay in autopsy samples had substantial influence on MeCP2 detection. Immunohistochemistry studies in RTT patients showed lower MeCP2 detection in glial cells of the white matter. Glial fibrillary acidic protein (GFAP) expression was also reduced in RTT brain samples without obvious change in myelin basic protein (MBP). Neurons did not show any noticeable decrease in MeCP2 detection. BDNF immunohistochemical detection showed an astroglial/endothelial pattern without noticeable difference between RTT and controls. CONCLUSIONS Our findings indicate that MeCP2 protein is widely expressed in mature human brain cells at all ages. However, our data points towards a possible white matter abnormality in RTT and highlights the importance of studying human RTT brain tissues in parallel with research on animal and cell models of RTT.
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Affiliation(s)
- S Pejhan
- Regenerative Medicine Program, and Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - V M Siu
- Division of Medical Genetics, Department of Paediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - L C Ang
- Department of Pathology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - M R Del Bigio
- Department of Pathology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - M Rastegar
- Regenerative Medicine Program, and Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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The Far-Reaching Effects of Neuroinflammation. Int Neurourol J 2019; 23:S53-53. [PMID: 31795603 PMCID: PMC6905204 DOI: 10.5213/inj.1920edi.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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20
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Molecular and Cellular Substrates of Neuroinflammation in Alzheimer Disease and Depression. Int Neurourol J 2019; 23:S51-52. [PMID: 31795602 PMCID: PMC6905207 DOI: 10.5213/inj.1920edi.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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