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Bandakinda M, Mishra A. Insights into role of microRNA in Alzheimer's disease: From contemporary research to bedside perspective. Int J Biol Macromol 2023; 253:126561. [PMID: 37659493 DOI: 10.1016/j.ijbiomac.2023.126561] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/20/2023] [Accepted: 08/18/2023] [Indexed: 09/04/2023]
Abstract
One of the most prevalent neurodegenerative disorders is Alzheimer's disease (AD). Despite the pervasiveness of AD being considerable, the rates of both diagnosis and therapy are comparatively less and still lacking. For the treatment of AD, acetylcholinesterase inhibitors and NMDA receptor antagonists (Memantine) have received clinical approval. The approved drugs are only capable of mitigating the symptoms; however, halting the progression of the disease remains a matter of substantial concern. MicroRNAs (miRs) are a subclass of non-coding single-stranded RNA molecules that target mRNAs to control the expression of genes in certain tissues. Dysregulation in the expression and function of miRs contributes to a neurodegeneration-like pathogenesis seen in Alzheimer's disease (AD), featuring hallmark characteristics such as Aβ aggregation, hyper-phosphorylation of Tau proteins, mitochondrial dysfunction, neuroinflammation, and apoptosis. These factors collectively underpin the cognitive deterioration and learning disabilities associated with AD. According to the research, numerous miRs have considerably different expression patterns in AD patients compared to healthy people. Due to these attributes, miRs prove to be effective diagnostic and therapeutic agents for AD. This review will examine clinical and preclinical data concerning the potential of miRs as diagnostic and therapeutic agents, utilizing various techniques (such as miR antagonists or inhibitors, miR agonists or mimics, miR sponges, and miR antisense oligonucleotides) to target specific pathogenic mechanisms in AD.
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Affiliation(s)
- Mounisha Bandakinda
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) - Guwahati, Changsari, Kamrup, Assam 781101, India
| | - Awanish Mishra
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) - Guwahati, Changsari, Kamrup, Assam 781101, India.
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Magen I, Yacovzada NS, Warren JD, Heller C, Swift I, Bobeva Y, Malaspina A, Rohrer JD, Fratta P, Hornstein E. microRNA-based predictor for diagnosis of frontotemporal dementia. Neuropathol Appl Neurobiol 2023; 49:e12916. [PMID: 37317649 DOI: 10.1111/nan.12916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/28/2023] [Accepted: 06/02/2023] [Indexed: 06/16/2023]
Abstract
AIMS This study aimed to explore the non-linear relationships between cell-free microRNAs (miRNAs) and their contribution to prediction of Frontotemporal dementia (FTD), an early onset dementia that is clinically heterogeneous, and too often suffers from delayed diagnosis. METHODS We initially studied a training cohort of 219 subjects (135 FTD and 84 non-neurodegenerative controls) and then validated the results in a cohort of 74 subjects (33 FTD and 41 controls). RESULTS On the basis of cell-free plasma miRNA profiling by next generation sequencing and machine learning approaches, we develop a non-linear prediction model that accurately distinguishes FTD from non-neurodegenerative controls in ~90% of cases. CONCLUSIONS The fascinating potential of diagnostic miRNA biomarkers might enable early-stage detection and a cost-effective screening approach for clinical trials that can facilitate drug development.
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Affiliation(s)
- Iddo Magen
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
- Department of Molecular Neuroscience, Weizmann Institute of Science, Rehovot, Israel
| | - Nancy-Sarah Yacovzada
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
- Department of Molecular Neuroscience, Weizmann Institute of Science, Rehovot, Israel
| | - Jason D Warren
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Carolin Heller
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
- UK Dementia Research Institute, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Imogen Swift
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
- UK Dementia Research Institute, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Yoana Bobeva
- Centre for Neuroscience and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Andrea Malaspina
- Centre for Neuroscience and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Jonathan D Rohrer
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Pietro Fratta
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Eran Hornstein
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
- Department of Molecular Neuroscience, Weizmann Institute of Science, Rehovot, Israel
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Freiría-Martínez L, Iglesias-Martínez-Almeida M, Rodríguez-Jamardo C, Rivera-Baltanás T, Comís-Tuche M, Rodrígues-Amorím D, Fernández-Palleiro P, Blanco-Formoso M, Diz-Chaves Y, González-Freiria N, Suárez-Albo M, Martín-Forero-Maestre M, Durán Fernández-Feijoo C, Fernández-Lorenzo JR, Concheiro Guisán A, Olivares JM, Spuch C. Human Breast Milk microRNAs, Potential Players in the Regulation of Nervous System. Nutrients 2023; 15:3284. [PMID: 37513702 PMCID: PMC10384760 DOI: 10.3390/nu15143284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/12/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
Human milk is the biological fluid with the highest exosome amount and is rich in microRNAs (miRNAs). These are key regulators of gene expression networks in both normal physiologic and disease contexts, miRNAs can influence many biological processes and have also shown promise as biomarkers for disease. One of the key aspects in the regeneration of the nervous system is that there are practically no molecules that can be used as potential drugs. In the first weeks of lactation, we know that human breast milk must contain the mechanisms to transmit molecular and biological information for brain development. For this reason, our objective is to identify new modulators of the nervous system that can be used to investigate neurodevelopmental functions based on miRNAs. To do this, we collected human breast milk samples according to the time of delivery and milk states: mature milk and colostrum at term; moderate and very preterm mature milk and colostrum; and late preterm mature milk. We extracted exosomes and miRNAs and realized the miRNA functional assays and target prediction. Our results demonstrate that miRNAs are abundant in human milk and likely play significant roles in neurodevelopment and normal function. We found 132 different miRNAs were identified across all samples. Sixty-nine miRNAs had significant differential expression after paired group comparison. These miRNAs are implicated in gene regulation of dopaminergic/glutamatergic synapses and neurotransmitter secretion and are related to the biological process that regulates neuron projection morphogenesis and synaptic vesicle transport. We observed differences according to the delivery time and with less clarity according to the milk type. Our data demonstrate that miRNAs are abundant in human milk and likely play significant roles in neurodevelopment and normal function.
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Affiliation(s)
- Luis Freiría-Martínez
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- Department of Functional Biology and Health Sciences, Campus Lagoas Marcosende, Universidade de Vigo, 36310 Vigo, Spain
| | - Marta Iglesias-Martínez-Almeida
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- Department of Functional Biology and Health Sciences, Campus Lagoas Marcosende, Universidade de Vigo, 36310 Vigo, Spain
| | - Cynthia Rodríguez-Jamardo
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- Department of Functional Biology and Health Sciences, Campus Lagoas Marcosende, Universidade de Vigo, 36310 Vigo, Spain
| | - Tania Rivera-Baltanás
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
| | - María Comís-Tuche
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- Department of Functional Biology and Health Sciences, Campus Lagoas Marcosende, Universidade de Vigo, 36310 Vigo, Spain
| | - Daniela Rodrígues-Amorím
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Patricia Fernández-Palleiro
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
| | - María Blanco-Formoso
- Department of Physical Chemistry, Singular Center for Biomedical Research (CINBIO), Universidade de Vigo, 36310 Vigo, Spain
| | - Yolanda Diz-Chaves
- Laboratory of Endocrinology, Singular Center for Biomedical Research (CINBIO), Universidade de Vigo, 36310 Vigo, Spain
| | | | - María Suárez-Albo
- Neonatal Intensive Care Unit, Alvaro Cunqueiro Hospital, 36312 Vigo, Spain
| | | | | | | | | | - Jose Manuel Olivares
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- CIBERSAM (Network Biomedical Research Center on Mental Health), 28029 Madrid, Spain
| | - Carlos Spuch
- Translational Neuroscience Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO (Servizo Galego de Saúde-Universidade de Vigo), 36312 Vigo, Spain
- CIBERSAM (Network Biomedical Research Center on Mental Health), 28029 Madrid, Spain
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Van der Auwera S, Garvert L, Ameling S, Völzke H, Nauck M, Völker U, Grabe HJ. The interplay between micro RNAs and genetic liability to Alzheimer's Disease on memory trajectories in the general population. Psychiatry Res 2023; 323:115141. [PMID: 36905902 DOI: 10.1016/j.psychres.2023.115141] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/20/2023] [Accepted: 02/28/2023] [Indexed: 03/13/2023]
Abstract
Deficits in cognitive function and memory are common early symptoms of neurodegenerative disorders, such as Alzheimer's Disease (AD). Several studies have discussed micro RNAs (miRNAs) as potential epigenetic early detection biomarkers. In a longitudinal general population sample (n = 548) from the Study of Health in Pomerania, we analyzed the associations between 167 baseline miRNA levels and changes in verbal memory scores with a mean follow-up time of 7.4 years. We additionally assessed the impact of an individual's genetic liability for AD on verbal memory scores in n = 2,334 subjects and a possible interactions between epigenetic and genetic markers. Results revealed two miRNAs associated with changes in immediate verbal memory over time. In interaction analyses between miRNAs and a polygenic risk score for AD, five miRNAs showed a significant interaction effect on changes in verbal memory. All of these miRNAs have previously been identified in the context of AD, neurodegeneration or cognition. Our study provides candidate miRNAs for a decline in verbal memory as an early symptom of neurodegeneration and AD. Further experimental studies are needed to verify the diagnostic value of these miRNA markers in the prodromal stage of AD.
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Affiliation(s)
- Sandra Van der Auwera
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany; German Center for Neurodegenerative Diseases DZNE, Site Rostock/Greifswald, Greifswald, Germany.
| | - Linda Garvert
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Sabine Ameling
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany
| | - Henry Völzke
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany; Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Nauck
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany; Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Uwe Völker
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany
| | - Hans J Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany; German Center for Neurodegenerative Diseases DZNE, Site Rostock/Greifswald, Greifswald, Germany
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PIWI-Interacting RNA (piRNA) and Epigenetic Editing in Environmental Health Sciences. Curr Environ Health Rep 2022; 9:650-660. [PMID: 35917009 DOI: 10.1007/s40572-022-00372-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW: The epigenome modulates gene expression in response to environmental stimuli. Modifications to the epigenome are potentially reversible, making them a promising therapeutic approach to mitigate environmental exposure effects on human health. This review details currently available genome and epigenome editing technologies and highlights ncRNA, including piRNA, as potential tools for targeted epigenome editing. RECENT FINDINGS: Zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), and clustered regularly interspaced short palindromic repeats (CRISPR) associated nuclease (CRISPR/Cas) research has significantly advanced genome editing technology, with broad promise in genetic research and targeted therapies. Initial epigenome-directed therapies relied on global modification and suffered from limited specificity. Adapted from current genome editing tools, zinc finger protein (ZFP), TALE, and CRISPR/nuclease-deactivated Cas (dCas) systems now confer locus-specific epigenome editing, with promising applicability in the field of environmental health sciences. However, high incidence of off-target effects and time taken for screening limit their use. FUTURE DEVELOPMENT: ncRNA serve as a versatile biomarker with well-characterized regulatory mechanisms that can easily be adapted to edit the epigenome. For instance, the transposon silencing mechanism of germline PIWI-interacting RNAs (piRNA) could be engineered to specifically methylate a given gene, overcoming pitfalls of current global modifiers. Future developments in epigenome editing technologies will inform risk assessment through mechanistic investigation and serve as potential modes of intervention to mitigate environmentally induced adverse health outcomes later in life.
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Li S, Wu L, Ma M, Yang L, Qin C. MicroRNA-668-3p regulates oxidative stress and cell damage induced by Aβ1-42 by targeting the OXR1/p53-p21 axis. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:928. [PMID: 36172098 PMCID: PMC9511202 DOI: 10.21037/atm-22-3598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/12/2022] [Indexed: 11/25/2022]
Abstract
Background Alzheimer’s disease (AD) is the most common type of dementia in old age and has become a serious social and medical problem threatening human health. We aimed to explore the mechanisms underlying AD development by screening for microRNAs (miRNAs) that affect AD progression and examining their role in AD development. Methods Hematoxylin-eosin (HE) staining, immunohistochemistry, and immunofluorescence (IF) were used to analyze the characteristics of the hippocampus, neuron cell separation, and related protein expression in mice. We used Gene Expression Omnibus (GEO) data analysis to screen miRNAs and mRNAs that affect AD progression, and quantitative reverse transcription polymerase chain reaction (RT-qPCR) and western blot analysis to determine changes in miRNA and mRNA levels before and after amyloid β (Aβ)1-42 induction. In addition, we used luciferase analysis to examine miRNA and mRNA binding and the effect of miRNA/mRNA interaction on neuronal cell proliferation. Apoptosis and reactive oxygen species (ROS) levels were examined using Cell Counting Kit-8 analysis and flow cytometry (FCM), respectively. The enzyme-linked immunosorbent assay was used to analyze changes in neuronal cell-secreted oxidative stress-related protein levels through miRNA/mRNA interaction. Results Oxidative stress levels were significantly increased in the AD mouse model. GEO data analysis revealed 67 dysregulated miRNAs, and miR-668-3p was identified as a potential therapeutic target for AD. We found that the AD and Aβ1-42-induced models showed an increase in miR-668-3p and a decrease in oxidation resistance 1 (OXR1) expression. The luciferase analysis results revealed that miR-668-3p may play a role in AD development by targeting OXR1 and promoting intracellular oxidative stress by activating p53-p21 signaling. The final rescue experiment also confirmed that Aβ1-42-induction decreased cell proliferation, increased apoptosis, increased cell cycle arrest, and promoted oxidative stress. Tenovin-1 (TEN) enhanced the effect of Aβ1-42, and the miR-668-3p inhibitor partially alleviated it, although the effect of the miR-668-3p inhibitor was weakened by TEN. Conclusions MiR-668-3p negatively regulated OXR1 expression by targeting OXR1, affecting p53-p21 protein signaling, and regulating cell damage and oxidative stress induced by Aβ1-42. Therefore, miR-668-3p may be a potential therapeutic target for AD.
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Affiliation(s)
- Shengyu Li
- Department of Neurology, Wuming Hospital of Guangxi Medical University, Nanning, China.,Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Lishuo Wu
- Department of Neurology, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, China.,Department of Neurology, The First People's Hospital of Nanning, Nanning, China
| | - Meigang Ma
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Longxiu Yang
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chao Qin
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Tantawy M, Collins JM, Wang D. Genome-wide microRNA profiles identify miR-107 as a top miRNA associating with expression of the CYP3As and other drug metabolizing cytochrome P450 enzymes in the liver. Front Pharmacol 2022; 13:943538. [PMID: 36059981 PMCID: PMC9428441 DOI: 10.3389/fphar.2022.943538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/06/2022] [Indexed: 11/13/2022] Open
Abstract
Cytochrome P450 (CYP) drug metabolizing enzymes are responsible for the metabolism of over 70% of currently used medications with the CYP3A family being the most important CYP enzymes in the liver. Large inter-person variability in expression/activity of the CYP3As greatly affects drug exposure and treatment outcomes, yet the cause of such variability remains elusive. Micro-RNAs (miRNAs) are small noncoding RNAs that negatively regulate gene expression and are involved in diverse cellular processes including metabolism of xenobiotics and therapeutic outcomes. Target prediction and in vitro functional assays have linked several miRNAs to the control of CYP3A4 expression. Yet, their co-expression with CYP3As in the liver remain unclear. In this study, we used genome-wide miRNA profiling in liver samples to identify miRNAs associated with the expression of the CYP3As. We identified and validated both miR-107 and miR-1260 as strongly associated with the expression of CYP3A4, CYP3A5, and CYP3A43. Moreover, we found associations between miR-107 and nine transcription factors (TFs) that regulate CYP3A expression, with estrogen receptor alpha (ESR1) having the largest effect size. Including ESR1 and the other TFs in the regression model either diminished or abolished the associations between miR-107 and the CYP3As, indicating that the role of miR-107 in CYP3A expression may be indirect and occur through these key TFs. Indeed, testing the other nine CYPs previously shown to be regulated by ESR1 identified similar miR-107 associations that were dependent on the exclusion of ESR1 and other key TFs in the regression model. In addition, we found significant differences in miRNA expression profiles in liver samples between race and sex. Together, our results identify miR-107 as a potential epigenetic regulator that is strongly associated with the expression of many CYPs, likely via impacting the CYP regulatory network controlled by ESR1 and other key TFs. Therefore, both genetic and epigenetic factors that alter the expression of miR-107 may have a broad influence on drug metabolism.
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Luo G, Wang X, Liu C. MiR-483-3p improves learning and memory abilities via XPO1 in Alzheimer's disease. Brain Behav 2022; 12:e2680. [PMID: 35833267 PMCID: PMC9392541 DOI: 10.1002/brb3.2680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/28/2022] [Accepted: 06/03/2022] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Alzheimer's disease (AD), a common form of dementia, has been reported to influence 27 million individuals globally. Several risk factors including oxidative stress, gut microbiota imbalance, and cognitive activity are reported to be closely associated with the initiation or progression of AD. Although miR-483-3p was identified to be downregulated in AD patient serum. However, the biological role and mechanism of miR-483-3p remained unknown in AD. Here, we explored the role of miR-483-3p in AD. METHODS Sprague-Dawley rats were injected with homocysteine (Hcy) to establish an AD animal model. The Morris water maze tests and contextual fear tests were conducted to assess the cognitive and memory abilities of rats. TUNEL staining was utilized to determine cell apoptosis. Luciferase reporter assay was used to evaluate the binding relation between miR-483-3p and exportin 1 (XPO1). RESULTS Homocysteine treatment (400 μg/kg) induced the learning, cognitive and memory defects of rats. miR-483-3p was downregulated in Hcy-treated rat hippocampus. Functionally, miR-483-3p alleviated cell apoptosis and impairments of learning and memory abilities in Hcy-treated rats. In addition, miR-483-3p inhibited cell apoptosis and protein level of AD-associated factors (APP, BACE1, and Aβ1-42) in PC12 cells. In mechanism, miR-483-3p was confirmed to target XPO1 in PC12 cells. XPO1 displayed high level in rat hippocampus and was negatively correlated with miR-483-3p levels. Finally, XPO1 overexpression rescued the suppressive effect of miR-483-3p on cell apoptosis and protein levels of AD-associated factors. CONCLUSIONS miR-483-3p alleviates neural cell apoptosis and impairments of learning and memory abilities by targeting XPO1 in AD.
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Affiliation(s)
- Gang Luo
- Department of RehabilitationGezhouba Central Hospital of Sinopharm, The Third Clinical Medical College of China Three Gorges UniversityYichangHubeiChina
| | - Xiaoyan Wang
- Department of RehabilitationThe Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| | - Changya Liu
- Department of NeurologyHubei Provincial Hospital of Traditional Chinese MedicineWuhanHubeiChina
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Zhang Q, Meng XH, Qiu C, Shen H, Zhao Q, Zhao LJ, Tian Q, Sun CQ, Deng HW. Integrative analysis of multi-omics data to detect the underlying molecular mechanisms for obesity in vivo in humans. Hum Genomics 2022; 16:15. [PMID: 35568907 PMCID: PMC9107154 DOI: 10.1186/s40246-022-00388-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 05/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obesity is a complex, multifactorial condition in which genetic play an important role. Most of the systematic studies currently focuses on individual omics aspect and provide insightful yet limited knowledge about the comprehensive and complex crosstalk between various omics levels. SUBJECTS AND METHODS Therefore, we performed a most comprehensive trans-omics study with various omics data from 104 subjects, to identify interactions/networks and particularly causal regulatory relationships within and especially those between omic molecules with the purpose to discover molecular genetic mechanisms underlying obesity etiology in vivo in humans. RESULTS By applying differentially analysis, we identified 8 differentially expressed hub genes (DEHGs), 14 differentially methylated regions (DMRs) and 12 differentially accumulated metabolites (DAMs) for obesity individually. By integrating those multi-omics biomarkers using Mendelian Randomization (MR) and network MR analyses, we identified 18 causal pathways with mediation effect. For the 20 biomarkers involved in those 18 pairs, 17 biomarkers were implicated in the pathophysiology of obesity or related diseases. CONCLUSIONS The integration of trans-omics and MR analyses may provide us a holistic understanding of the underlying functional mechanisms, molecular regulatory information flow and the interactive molecular systems among different omic molecules for obesity risk and other complex diseases/traits.
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Affiliation(s)
- Qiang Zhang
- Department of Community Nursing, School of Nursing and Health, Zhengzhou University, High-Tech Development Zone of States, Zhengzhou, 450001, Henan, People's Republic of China
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Xiang-He Meng
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA
- Center for System Biology, Data Sciences, and Reproductive Health, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - Chuan Qiu
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Hui Shen
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Qi Zhao
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Lan-Juan Zhao
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Qing Tian
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Chang-Qing Sun
- Department of Community Nursing, School of Nursing and Health, Zhengzhou University, High-Tech Development Zone of States, Zhengzhou, 450001, Henan, People's Republic of China
- Department of Social Medicine and Health Management, College of Public Health, Zhengzhou University, High-Tech Development Zone of States, Zhengzhou, 450001, Henan, People's Republic of China
| | - Hong-Wen Deng
- Tulane Center for Biomedical Informatics and Genomics, School of Medicine, Tulane University, New Orleans, LA, 70112, USA.
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De Sousa RAL, Improta-Caria AC. Regulation of microRNAs in Alzheimer´s disease, type 2 diabetes, and aerobic exercise training. Metab Brain Dis 2022; 37:559-580. [PMID: 35075500 DOI: 10.1007/s11011-022-00903-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 01/03/2022] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease (AD) is the most common type of dementia. The evolution and aggregation of amyloid beta (β) oligomers is linked to insulin resistance in AD, which is also the major characteristic of type 2 diabetes (T2D). Being physically inactive can contribute to the development of AD and/or T2D. Aerobic exercise training (AET), a type of physical exercise, can be useful in preventing or treating the negative outcomes of AD and T2D. AD, T2D and AET can regulate the expression of microRNAs (miRNAs). Here, we review some of the changes in miRNAs expression regulated by AET, AD and T2D. MiRNAs play an important role in the gene regulation of key signaling pathways in both pathologies, AD and T2D. MiRNA dysregulation is evident in AD and has been associated with several neuropathological alterations, such as the development of a reactive gliosis. Expression of miRNAs are associated with many pathophysiological mechanisms involved in T2D like insulin synthesis, insulin resistance, glucose intolerance, hyperglycemia, intracellular signaling, and lipid profile. AET regulates miRNAs levels. We identified 5 miRNAs (miR-21, miR-29a/b, miR-103, miR-107, and miR-195) that regulate gene expression and are modulated by AET on AD and T2D. The identified miRNAs are potential targets to treat the symptoms of AD and T2D. Thus, AET is a non-pharmacological tool that can be used to prevent and fight the negative outcomes in AD and T2D.
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Affiliation(s)
- Ricardo Augusto Leoni De Sousa
- Programa Multicêntrico de Pós-Graduação Em Ciências Fisiológicas- Sociedade Brasileira de Fisiologia (SBFis), Universidade Federal Dos Vales Do Jequitinhonha E Mucuri (UFVJM), Campus JK, Rodovia MGT 367, Km 583, Alto da Jacuba, nº 5000, Diamantina, Minas Gerais, CEP 39100-000, Brazil.
| | - Alex Cleber Improta-Caria
- Post-Graduate Program in Medicine and Health, Faculty of Medicine, Federal University of Bahia, Bahia, Brazil
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11
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Tsamou M, Carpi D, Pistollato F, Roggen EL. Sporadic Alzheimer's Disease- and Neurotoxicity-Related microRNAs Affecting Key Events of Tau-Driven Adverse Outcome Pathway Toward Memory Loss. J Alzheimers Dis 2022; 86:1427-1457. [PMID: 35213375 DOI: 10.3233/jad-215434] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND A complex network of aging-related homeostatic pathways that are sensitive to further deterioration in the presence of genetic, systemic, and environmental risk factors, and lifestyle, is implicated in the pathogenesis of progressive neurodegenerative diseases, such as sporadic (late-onset) Alzheimer's disease (sAD). OBJECTIVE Since sAD pathology and neurotoxicity share microRNAs (miRs) regulating common as well as overlapping pathological processes, environmental neurotoxic compounds are hypothesized to exert a risk for sAD initiation and progression. METHODS Literature search for miRs associated with human sAD and environmental neurotoxic compounds was conducted. Functional miR analysis using PathDip was performed to create miR-target interaction networks. RESULTS The identified miRs were successfully linked to the hypothetical starting point and key events of the earlier proposed tau-driven adverse outcome pathway toward memory loss. Functional miR analysis confirmed most of the findings retrieved from literature and revealed some interesting findings. The analysis identified 40 miRs involved in both sAD and neurotoxicity that dysregulated processes governing the plausible adverse outcome pathway for memory loss. CONCLUSION Creating miR-target interaction networks related to pathological processes involved in sAD initiation and progression, and environmental chemical-induced neurotoxicity, respectively, provided overlapping miR-target interaction networks. This overlap offered an opportunity to create an alternative picture of the mechanisms underlying sAD initiation and early progression. Looking at initiation and progression of sAD from this new angle may open for new biomarkers and novel drug targets for sAD before the appearance of the first clinical symptoms.
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Affiliation(s)
- Maria Tsamou
- ToxGenSolutions (TGS), Maastricht, The Netherlands
| | - Donatella Carpi
- European Commission, Joint Research Centre (JRC), Ispra VA, Italy
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12
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Belkozhayev AM, Al-Yozbaki M, George A, Niyazova RY, Sharipov KO, Byrne LJ, Wilson CM. Extracellular Vesicles, Stem Cells and the Role of miRNAs in Neurodegeneration. Curr Neuropharmacol 2022; 20:1450-1478. [PMID: 34414870 PMCID: PMC9881087 DOI: 10.2174/1570159x19666210817150141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/16/2021] [Accepted: 06/14/2021] [Indexed: 11/22/2022] Open
Abstract
There are different modalities of intercellular communication governed by cellular homeostasis. In this review, we will explore one of these forms of communication called extracellular vesicles (EVs). These vesicles are released by all cells in the body and are heterogeneous in nature. The primary function of EVs is to share information through their cargo consisting of proteins, lipids and nucleic acids (mRNA, miRNA, dsDNA etc.) with other cells, which have a direct consequence on their microenvironment. We will focus on the role of EVs of mesenchymal stem cells (MSCs) in the nervous system and how these participate in intercellular communication to maintain physiological function and provide neuroprotection. However, deregulation of this same communication system could play a role in several neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Amyotrophic lateral sclerosis, multiple sclerosis, prion disease and Huntington's disease. The release of EVs from a cell provides crucial information to what is happening inside the cell and thus could be used in diagnostics and therapy. We will discuss and explore new avenues for the clinical applications of using engineered MSC-EVs and their potential therapeutic benefit in treating neurodegenerative diseases.
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Affiliation(s)
- Ayaz M. Belkozhayev
- Al-Farabi Kazakh National University, Faculty of Biology and Biotechnology, Almaty, Republic of Kazakhstan
- Structural and Functional Genomics Laboratory of M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Republic of Kazakhstan
| | - Minnatallah Al-Yozbaki
- Canterbury Christ Church University, School of Human and Life Sciences, Life Sciences Industry Liaison Lab, Sandwich, UK
| | - Alex George
- Canterbury Christ Church University, School of Human and Life Sciences, Life Sciences Industry Liaison Lab, Sandwich, UK
- Jubilee Centre for Medical Research, Jubilee Mission Medical College & Research Institute, Thrissur, Kerala, India
| | - Raigul Ye Niyazova
- Al-Farabi Kazakh National University, Faculty of Biology and Biotechnology, Almaty, Republic of Kazakhstan
| | - Kamalidin O. Sharipov
- Structural and Functional Genomics Laboratory of M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Republic of Kazakhstan
| | - Lee J. Byrne
- Canterbury Christ Church University, School of Human and Life Sciences, Life Sciences Industry Liaison Lab, Sandwich, UK
| | - Cornelia M. Wilson
- Canterbury Christ Church University, School of Human and Life Sciences, Life Sciences Industry Liaison Lab, Sandwich, UK
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13
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李 壬. Bioinformatics Analysis of ceRNA Regulatory Network in Alzheimer’s Disease. Biophysics (Nagoya-shi) 2022. [DOI: 10.12677/biphy.2022.101001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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14
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Verheijen MCT, Krauskopf J, Caiment F, Nazaruk M, Wen QF, van Herwijnen MHM, Hauser DA, Gajjar M, Verfaillie C, Vermeiren Y, De Deyn PP, Wittens MMJ, Sieben A, Engelborghs S, Dejonckheere W, Princen K, Griffioen G, Roggen EL, Briedé JJ. iPSC-derived cortical neurons to study sporadic Alzheimer disease: A transcriptome comparison with post-mortem brain samples. Toxicol Lett 2021; 356:89-99. [PMID: 34921933 DOI: 10.1016/j.toxlet.2021.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 09/27/2021] [Accepted: 12/14/2021] [Indexed: 10/19/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia, characterized by the progressive impairment of cognition and memory loss. Sporadic AD (sAD) represents approximately 95 % of the AD cases and is induced by a complex interplay between genetic and environmental factors called "Alzheimerogens". Heavy metals (e.g. copper) and pesticides (e.g. fipronil) can affect many AD-related processes, including neuroinflammation (considered as AD-inducing factor). Research would benefit from in vitro models to investigate effects of Alzheimerogens. We compared transcriptomics changes in sAD induced pluripotent stem cell (iPSC) derived cortical neurons to differentially expressed genes (DEGs) identified in post-mortem AD brain tissue. These analyses showed that many AD-related processes could be identified in the sAD iPSC-derived neurons, and furthermore, could even identify more DEGs functioning in these processes than post-mortem AD-brain tissue. Thereafter, we exposed the iPSCs to AD-inducing factors (copper(II)chloride, fipronil sulfone and an inflammatory cytokine cocktail). Cytokine exposure induced expression of immune related genes while copper-exposure affected genes involved in lipid and cholesterol metabolism, which are known AD-related processes. Fipronil-exposure did not result in significant transcriptomic changes, although prolonged exposures or higher doses may be necessary. Overall, we show that iPSC-derived cortical neurons can be beneficial in vitro models to identify Alzheimerogens and AD-related molecular mechanisms.
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Affiliation(s)
- M C T Verheijen
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands; MHeNS, School for Mental Health and Neuroscience, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - J Krauskopf
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - F Caiment
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - M Nazaruk
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - Q F Wen
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - M H M van Herwijnen
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - D A Hauser
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
| | - M Gajjar
- Stem Cell Institute, Department of Development and Regeneration, Katholieke Universiteit Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - C Verfaillie
- Stem Cell Institute, Department of Development and Regeneration, Katholieke Universiteit Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Y Vermeiren
- Laboratory of Neurochemistry and Behavior, and Biobank, Institute Born-Bunge, University of Antwerp, Universiteitsplein 1, BE-2610 Antwerpen, Belgium
| | - P P De Deyn
- Laboratory of Neurochemistry and Behavior, and Biobank, Institute Born-Bunge, University of Antwerp, Universiteitsplein 1, BE-2610 Antwerpen, Belgium; Department of Neurology and Memory Clinic, Hospital Network Antwerp (ZNA) Middelheim and Hoge Beuken, eindendreef 1, 2020 Antwerpen, Belgium
| | - M M J Wittens
- Laboratory of Neurochemistry and Behavior, and Biobank, Institute Born-Bunge, University of Antwerp, Universiteitsplein 1, BE-2610 Antwerpen, Belgium; Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), and Department of Neurology, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussel, Belgium
| | - A Sieben
- Laboratory of Neurochemistry and Behavior, and Biobank, Institute Born-Bunge, University of Antwerp, Universiteitsplein 1, BE-2610 Antwerpen, Belgium
| | - S Engelborghs
- Laboratory of Neurochemistry and Behavior, and Biobank, Institute Born-Bunge, University of Antwerp, Universiteitsplein 1, BE-2610 Antwerpen, Belgium; Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), and Department of Neurology, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussel, Belgium
| | - W Dejonckheere
- reMYND, Bio-Incubator (Wetenschapspark), Gaston Geenslaan 1, 3001 Leuven-Heverlee, Belgium
| | - K Princen
- reMYND, Bio-Incubator (Wetenschapspark), Gaston Geenslaan 1, 3001 Leuven-Heverlee, Belgium
| | - G Griffioen
- reMYND, Bio-Incubator (Wetenschapspark), Gaston Geenslaan 1, 3001 Leuven-Heverlee, Belgium
| | - E L Roggen
- ToxGenSolutions BV, Oxfordlaan 70, 6229 EV Maastricht, the Netherlands
| | - J J Briedé
- Department of Toxicogenomics, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands; MHeNS, School for Mental Health and Neuroscience, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands.
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15
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Huibregtse ME, Bazarian JJ, Shultz SR, Kawata K. The biological significance and clinical utility of emerging blood biomarkers for traumatic brain injury. Neurosci Biobehav Rev 2021; 130:433-447. [PMID: 34474049 DOI: 10.1016/j.neubiorev.2021.08.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/17/2022]
Abstract
HUIBREGTSE, M.E, Bazarian, J.J., Shultz, S.R., and Kawata K. The biological significance and clinical utility of emerging blood biomarkers for traumatic brain injury. NEUROSCI BIOBEHAV REV XX (130) 433-447, 2021.- Blood biomarkers can serve as objective measures to gauge traumatic brain injury (TBI) severity, identify patients at risk for adverse outcomes, and predict recovery duration, yet the clinical use of blood biomarkers for TBI is limited to a select few and only to rule out the need for CT scanning. The biomarkers often examined in neurotrauma research are proteomic markers, which can reflect a range of pathological processes such as cellular damage, astrogliosis, or neuroinflammation. However, proteomic blood biomarkers are vulnerable to degradation, resulting in short half-lives. Emerging biomarkers for TBI may reflect the complex genetic and neurometabolic alterations that occur following TBI that are not captured by proteomics, are less vulnerable to degradation, and are comprised of microRNA, extracellular vesicles, and neurometabolites. Therefore, this review aims to summarize our understanding of how biomarkers for brain injury escape the brain parenchymal space and appear in the bloodstream, update recent research findings in several proteomic biomarkers, and characterize biological significance and examine clinical utility of microRNA, extracellular vesicles, and neurometabolites.
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Affiliation(s)
- Megan E Huibregtse
- Department of Kinesiology, School of Public Health, Indiana University, 1025 E 7th St, Suite 112, Bloomington, IN 47405, USA.
| | - Jeffrey J Bazarian
- Department of Emergency Medicine, University of Rochester Medical Center, 200 E River Rd, Rochester, NY 14623, USA.
| | - Sandy R Shultz
- Department of Neuroscience, Monash University, The Alfred Centre, Level 6, 99 Commercial Road, Melbourne, VIC 3004, Australia; Department of Medicine, University of Melbourne, Clinical Sciences Building, 4th Floor, 300 Grattan St, Parkville, VIC 3050, Australia.
| | - Keisuke Kawata
- Department of Kinesiology, School of Public Health, Indiana University, 1025 E 7th St, Suite 112, Bloomington, IN 47405, USA; Program in Neuroscience, College of Arts and Sciences, Indiana University, 1101 E 10th St, Bloomington, IN 47405, USA.
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16
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Alldred MJ, Penikalapati SC, Lee SH, Heguy A, Roussos P, Ginsberg SD. Profiling Basal Forebrain Cholinergic Neurons Reveals a Molecular Basis for Vulnerability Within the Ts65Dn Model of Down Syndrome and Alzheimer's Disease. Mol Neurobiol 2021; 58:5141-5162. [PMID: 34263425 DOI: 10.1007/s12035-021-02453-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/13/2021] [Indexed: 12/30/2022]
Abstract
Basal forebrain cholinergic neuron (BFCN) degeneration is a hallmark of Down syndrome (DS) and Alzheimer's disease (AD). Current therapeutics have been unsuccessful in slowing disease progression, likely due to complex pathological interactions and dysregulated pathways that are poorly understood. The Ts65Dn trisomic mouse model recapitulates both cognitive and morphological deficits of DS and AD, including BFCN degeneration. We utilized Ts65Dn mice to understand mechanisms underlying BFCN degeneration to identify novel targets for therapeutic intervention. We performed high-throughput, single population RNA sequencing (RNA-seq) to interrogate transcriptomic changes within medial septal nucleus (MSN) BFCNs, using laser capture microdissection to individually isolate ~500 choline acetyltransferase-immunopositive neurons in Ts65Dn and normal disomic (2N) mice at 6 months of age (MO). Ts65Dn mice had unique MSN BFCN transcriptomic profiles at ~6 MO clearly differentiating them from 2N mice. Leveraging Ingenuity Pathway Analysis and KEGG analysis, we linked differentially expressed gene (DEG) changes within MSN BFCNs to several canonical pathways and aberrant physiological functions. The dysregulated transcriptomic profile of trisomic BFCNs provides key information underscoring selective vulnerability within the septohippocampal circuit. We propose both expected and novel therapeutic targets for DS and AD, including specific DEGs within cholinergic, glutamatergic, GABAergic, and neurotrophin pathways, as well as select targets for repairing oxidative phosphorylation status in neurons. We demonstrate and validate this interrogative quantitative bioinformatic analysis of a key dysregulated neuronal population linking single population transcript changes to an established pathological hallmark associated with cognitive decline for therapeutic development in human DS and AD.
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Affiliation(s)
- Melissa J Alldred
- Center for Dementia Research, Nathan Kline Institute, 140 Old Orangeburg Road, Orangeburg, NY, 10962, USA.,Departments of Psychiatry, New York University Grossman School of Medicine, New York, NY, USA
| | - Sai C Penikalapati
- Center for Dementia Research, Nathan Kline Institute, 140 Old Orangeburg Road, Orangeburg, NY, 10962, USA
| | - Sang Han Lee
- Center for Biomedical Imaging and Neuromodulation, Nathan Kline Institute, Orangeburg, NY, USA
| | - Adriana Heguy
- Genome Technology Center, New York University Grossman School of Medicine, New York, NY, USA
| | - Panos Roussos
- Center for Dementia Research, Nathan Kline Institute, 140 Old Orangeburg Road, Orangeburg, NY, 10962, USA.,Departments of Genetics and Genomic Sciences and Psychiatry and the Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Stephen D Ginsberg
- Center for Dementia Research, Nathan Kline Institute, 140 Old Orangeburg Road, Orangeburg, NY, 10962, USA. .,Departments of Psychiatry, New York University Grossman School of Medicine, New York, NY, USA. .,Neuroscience & Physiology, New York University Grossman School of Medicine, New York, NY, USA. .,NYU Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA.
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17
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Wang J, Zhou Y, Yang Y, Gao X, Liu Z, Hong G, Yao L, Yin J, Gu X, Li K. S100B gene polymorphisms are associated with the S100B level and Alzheimer's disease risk by altering the miRNA binding capacity. Aging (Albany NY) 2021; 13:13954-13967. [PMID: 33982673 PMCID: PMC8202836 DOI: 10.18632/aging.203005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 03/26/2021] [Indexed: 11/25/2022]
Abstract
To examine the role of S100B in genetic susceptibility to Alzheimer’s disease (AD), we conducted a case-control study to analyze four polymorphism loci (rs2839364, rs1051169, rs2300403, and rs9722) of the S100B gene and AD risk. We found an independent increased risk of AD in ApoE ε4(-) subjects carrying the rs9722 AA-genotype (OR = 2.622, 95% CI = 1.399–4.915, P = 0.003). Further investigation revealed the serum S100B levels to be lower in rs9722 GG carriers than in rs9722 AA carriers (P = 0.003). We identified three miRNAs (miR-340-3p, miR-593-3p, miR-6827-3p) in which the seed match region covered locus rs9722. Luciferase assays indicated that the rs9722 G allele has a higher binding affinity to miR-6827-3p than the rs9722 A allele, leading to a significantly decreased fluorescence intensity. Subsequent western blot analysis showed that the S100B protein level of SH-SY5Y cells, which carry the rs9722 G allele, decreased significantly following miR-6827-3p stimulation (P = 0.009). The present study suggests that the rs9722 polymorphism may upregulate the expression of S100B by altering the miRNA binding capacity and may thus increase the AD risk. This finding would be of great help for the early diagnosis of AD.
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Affiliation(s)
- Jiafeng Wang
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yulan Zhou
- Clinical Medicine Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yixia Yang
- Clinical Medicine Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xiang Gao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zhibin Liu
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Guanhao Hong
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lifen Yao
- Department of Neurology, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Jingwen Yin
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xuefeng Gu
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Keshen Li
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Guangzhou, China.,Clinical Neuroscience Institute of Jinan University, Guangzhou, China.,Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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Benameur T, Soleti R, Porro C. The Potential Neuroprotective Role of Free and Encapsulated Quercetin Mediated by miRNA against Neurological Diseases. Nutrients 2021; 13:nu13041318. [PMID: 33923599 PMCID: PMC8073422 DOI: 10.3390/nu13041318] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022] Open
Abstract
Chronic neuroinflammation is a pathological condition of numerous central nervous system (CNS) diseases such as Parkinson’s disease, Alzheimer’s disease, multiple sclerosis, amyotrophic lateral sclerosis and many others. Neuroinflammation is characterized by the microglia activation and concomitant production of pro-inflammatory cytokines leading to an increasing neuronal cell death. The decreased neuroinflammation could be obtained by using natural compounds, including flavonoids known to modulate the inflammatory responses. Among flavonoids, quercetin possess multiple pharmacological applications including anti-inflammatory, antitumoral, antiapoptotic and anti-thrombotic activities, widely demonstrated in both in vitro and in vivo studies. In this review, we describe the recent findings about the neuroprotective action of quercetin by acting with different mechanisms on the microglial cells of CNS. The ability of quercetin to influence microRNA expression represents an interesting skill in the regulation of inflammation, differentiation, proliferation, apoptosis and immune responses. Moreover, in order to enhance quercetin bioavailability and capacity to target the brain, we discuss an innovative drug delivery system. In summary, this review highlighted an important application of quercetin in the modulation of neuroinflammation and prevention of neurological disorders.
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Affiliation(s)
- Tarek Benameur
- College of Medicine, Department of Biomedical Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Raffaella Soleti
- Univ Angers, Université de Nantes, Inserm, CRCINA, SFR ICAT, F-49800 Angers, France;
| | - Chiara Porro
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 Foggia, Italy
- Correspondence:
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Key Disease Mechanisms Linked to Alzheimer's Disease in the Entorhinal Cortex. Int J Mol Sci 2021; 22:ijms22083915. [PMID: 33920138 PMCID: PMC8069371 DOI: 10.3390/ijms22083915] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023] Open
Abstract
Alzheimer’s disease (AD) is a chronic, neurodegenerative brain disorder affecting millions of Americans that is expected to increase in incidence with the expanding aging population. Symptomatic AD patients show cognitive decline and often develop neuropsychiatric symptoms due to the accumulation of insoluble proteins that produce plaques and tangles seen in the brain at autopsy. Unexpectedly, some clinically normal individuals also show AD pathology in the brain at autopsy (asymptomatic AD, AsymAD). In this study, SWItchMiner software was used to identify key switch genes in the brain’s entorhinal cortex that lead to the development of AD or disease resilience. Seventy-two switch genes were identified that are differentially expressed in AD patients compared to healthy controls. These genes are involved in inflammation, platelet activation, and phospholipase D and estrogen signaling. Peroxisome proliferator-activated receptor γ (PPARG), zinc-finger transcription factor (YY1), sterol regulatory element-binding transcription factor 2 (SREBF2), and early growth response 1 (EGR1) were identified as transcription factors that potentially regulate switch genes in AD. Comparing AD patients to AsymAD individuals revealed 51 switch genes; PPARG as a potential regulator of these genes, and platelet activation and phospholipase D as critical signaling pathways. Chemical–protein interaction analysis revealed that valproic acid is a therapeutic agent that could prevent AD from progressing.
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20
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Segaran RC, Chan LY, Wang H, Sethi G, Tang FR. Neuronal Development-Related miRNAs as Biomarkers for Alzheimer's Disease, Depression, Schizophrenia and Ionizing Radiation Exposure. Curr Med Chem 2021; 28:19-52. [PMID: 31965936 DOI: 10.2174/0929867327666200121122910] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/30/2019] [Accepted: 10/22/2019] [Indexed: 11/22/2022]
Abstract
Radiation exposure may induce Alzheimer's disease (AD), depression or schizophrenia. A number of experimental and clinical studies suggest the involvement of miRNA in the development of these diseases, and also in the neuropathological changes after brain radiation exposure. The current literature review indicated the involvement of 65 miRNAs in neuronal development in the brain. In the brain tissue, blood, or cerebral spinal fluid (CSF), 11, 55, or 28 miRNAs are involved in the development of AD respectively, 89, 50, 19 miRNAs in depression, and 102, 35, 8 miRNAs in schizophrenia. We compared miRNAs regulating neuronal development to those involved in the genesis of AD, depression and schizophrenia and also those driving radiation-induced brain neuropathological changes by reviewing the available data. We found that 3, 11, or 8 neuronal developmentrelated miRNAs from the brain tissue, 13, 16 or 14 miRNAs from the blood of patient with AD, depression and schizophrenia respectively were also involved in radiation-induced brain pathological changes, suggesting a possibly specific involvement of these miRNAs in radiation-induced development of AD, depression and schizophrenia respectively. On the other hand, we noted that radiationinduced changes of two miRNAs, i.e., miR-132, miR-29 in the brain tissue, three miRNAs, i.e., miR- 29c-5p, miR-106b-5p, miR-34a-5p in the blood were also involved in the development of AD, depression and schizophrenia, thereby suggesting that these miRNAs may be involved in the common brain neuropathological changes, such as impairment of neurogenesis and reduced learning memory ability observed in these three diseases and also after radiation exposure.
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Affiliation(s)
- Renu Chandra Segaran
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Li Yun Chan
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Hong Wang
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Feng Ru Tang
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
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21
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Li M, Geng R, Li C, Meng F, Zhao H, Liu J, Dai J, Wang X. Dysregulated gene-associated biomarkers for Alzheimer's disease and aging. Transl Neurosci 2021; 12:83-95. [PMID: 33623715 PMCID: PMC7885957 DOI: 10.1515/tnsci-2021-0009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/20/2020] [Accepted: 01/18/2021] [Indexed: 01/03/2023] Open
Abstract
Alzheimer’s disease (AD), the most common type of dementia, is a neurodegenerative disorder with a hidden onset, including difficult early detection and diagnosis. Nevertheless, the new crucial biomarkers for the diagnosis and pathogenesis of AD need to be explored further. Here, the common differentially expressed genes (DEGs) were identified through a comprehensive analysis of gene expression profiles from the Gene Expression Omnibus (GEO) database. Furthermore, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses revealed that these DEGs were mainly associated with biological processes, cellular components, and molecular functions, which are involved in multiple cellular functions. Next, we found that 9 of the 24 genes showed the same regulatory changes in the blood of patients with AD compared to those in the GEO database, and 2 of the 24 genes showed a significant correlation with Montreal Cognitive Assessment scores. Finally, we determined that mice with AD and elderly mice had the same regulatory changes in the identified DEGs in both the blood and hippocampus. Our study identified several potential core biomarkers of AD and aging, which could contribute to the early detection, differential diagnosis, treatment, and pathological analysis of AD.
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Affiliation(s)
- Min Li
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China
| | - Rongxin Geng
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000, China
| | - Chen Li
- Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, 256603, China
| | - Fantao Meng
- Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, 256603, China
| | - Hongwei Zhao
- Department of Neurosurgery, Binzhou Medical University Hospital, Binzhou, Shandong, 256603, China
| | - Jing Liu
- Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, 256603, China
| | - Juanjuan Dai
- Cancer Research Institute, Binzhou Medical University Hospital, Binzhou, Shandong, 256603, China
| | - Xuezhen Wang
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China
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22
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Chen ML, Hong CG, Yue T, Li HM, Duan R, Hu WB, Cao J, Wang ZX, Chen CY, Hu XK, Wu B, Liu HM, Tan YJ, Liu JH, Luo ZW, Zhang Y, Rao SS, Luo MJ, Yin H, Wang YY, Xia K, Tang SY, Xie H, Liu ZZ. Inhibition of miR-331-3p and miR-9-5p ameliorates Alzheimer's disease by enhancing autophagy. Am J Cancer Res 2021; 11:2395-2409. [PMID: 33500732 PMCID: PMC7797673 DOI: 10.7150/thno.47408] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 11/23/2020] [Indexed: 12/23/2022] Open
Abstract
Alzheimer's disease (AD) is currently ranked as the third leading cause of death for eldly people, just behind heart disease and cancer. Autophagy is declined with aging. Our study determined the biphasic changes of miR-331-3p and miR-9-5p associated with AD progression in APPswe/PS1dE9 mouse model and demonstrated inhibiting miR-331-3p and miR-9-5p treatment prevented AD progression by promoting the autophagic clearance of amyloid beta (Aβ). Methods: The biphasic changes of microRNAs were obtained from RNA-seq data and verified by qRT-PCR in early-stage (6 months) and late-stage (12 months) APPswe/PS1dE9 mice (hereinafter referred to as AD mice). The AD progression was determined by analyzing Aβ levels, neuron numbers (MAP2+) and activated microglia (CD68+IBA1+) in brain tissues using immunohistological and immunofluorescent staining. MRNA and protein levels of autophagic-associated genes (Becn1, Sqstm1, LC3b) were tested to determine the autophagic activity. Morris water maze and object location test were employed to evaluate the memory and learning after antagomirs treatments in AD mice and the Aβ in the brain tissues were determined. Results: MiR-331-3p and miR-9-5p are down-regulated in early-stage of AD mice, whereas up-regulated in late-stage of AD mice. We demonstrated that miR-331-3p and miR-9-5p target autophagy receptors Sequestosome 1 (Sqstm1) and Optineurin (Optn), respectively. Overexpression of miR-331-3p and miR-9-5p in SH-SY5Y cell line impaired autophagic activity and promoted amyloid plaques formation. Moreover, AD mice had enhanced Aβ clearance, improved cognition and mobility when treated with miR-331-3p and miR-9-5p antagomirs at late-stage. Conclusion: Our study suggests that using miR-331-3p and miR-9-5p, along with autophagic activity and amyloid plaques may distinguish early versus late stage of AD for more accurate and timely diagnosis. Additionally, we further provide a possible new therapeutic strategy for AD patients by inhibiting miR-331-3p and miR-9-5p and enhancing autophagy.
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Feng YS, Tan ZX, Wu LY, Dong F, Zhang F. The involvement of NLRP3 inflammasome in the treatment of Alzheimer's disease. Ageing Res Rev 2020; 64:101192. [PMID: 33059089 DOI: 10.1016/j.arr.2020.101192] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/04/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases, and it is characterised by progressive deterioration in cognitive and memory abilities, which can severely influence the elderly population's daily living abilities. Although researchers have made great efforts in the field of AD, there are still no well-established strategies to prevent and treat this disease. Therefore, better clarification of the molecular mechanisms associated with the onset and progression of AD is critical to provide a theoretical basis for the establishment of novel preventive and therapeutic strategies. Currently, it is generally believed that neuroinflammation plays a key role in the pathogenesis of AD. Inflammasome, a multiprotein complex, is involved in the innate immune system, and it can mediate inflammatory responses and pyroptosis, which lead to neurodegeneration. Among the various types of inflammasomes, the NLRP3 inflammasome is the most characterised in neurodegenerative diseases, especially in AD. The activation of the NLRP3 inflammasome causes the generation of caspase-1-mediated interleukin (IL)-1β and IL-18 in microglia cells, where neuroinflammation is involved in the development and progression of AD. Thus, the NLRP3 inflammasome is likely to be a crucial therapeutic molecular target for AD via regulating neuroinflammation. In this review, we summarise the current knowledge on the role and regulatory mechanisms of the NLRP3 inflammasome in the pathogenic mechanisms of AD. We also focus on a series of potential therapeutic treatments targeting NLRP3 inflammasome for AD. Further clarification of the regulatory mechanisms of the NLRP3 inflammasome in AD may provide more useful clues to develop novel AD treatment strategies.
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24
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A Pilot Longitudinal Evaluation of MicroRNAs for Monitoring the Cognitive Impairment in Pediatric Multiple Sclerosis. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs), a class of non-coding RNAs, seem to play a key role in complex diseases like multiple sclerosis (MS), as well as in many cognitive functions associated with the disease. In a previous cross-sectional evaluation on pediatric MS (PedMS) patients, the expression of some miRNAs and their target genes were found to be associated with the scores of some neuropsychiatric tests, thus suggesting that they may be involved in early processes of cognitive impairment. To verify these data, we asked the same patients to be re-evaluated after a 1-year interval; unfortunately, only nine of them agreed to this further clinical and molecular analysis. The main results showed that 13 differentially expressed miRNAs discriminated the two time-points. Among them, the expression of miR-182-5p, miR-320a-3p, miR-744-5p and miR-192-5p significantly correlated with the attention and information processing speed performances, whereas the expression of miR-182-5p, miR-451a, miR-4742-3p and miR-320a-3p correlated with the expressive language performances. The analysis of mRNA expression uncovered 58 predicted and/or validated miRNA-target pairs, including 23 target genes, some of them already associated with cognitive impairment, such as the transducing beta like 1 X-linked receptor-1 gene (TBL1XR1), correlated to disorders of neurodevelopment; the Snf2 related CREBBP activator protein gene (SRCAP) that was found implicated in a rare form of dementia; and the glia maturation factor beta gene (GMFB), which has been reported to be implicated in neurodegeneration and neuroinflammation. No molecular pathways involving the most targeted genes survived the adjustment for multiple data. Although preliminary, these findings showed the feasibility of the methods also applied to longitudinal investigations, as well as the reliability of the obtained results. These findings should be confirmed in larger PedMS cohorts in order to identify early markers of cognitive impairment, towards which more efficient therapeutic efforts can be addressed.
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25
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Yu L, Li H, Liu W, Zhang L, Tian Q, Li H, Li M. MiR-485-3p serves as a biomarker and therapeutic target of Alzheimer's disease via regulating neuronal cell viability and neuroinflammation by targeting AKT3. Mol Genet Genomic Med 2020; 9:e1548. [PMID: 33220166 PMCID: PMC7963426 DOI: 10.1002/mgg3.1548] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Numerous microRNAs (miRNAs) have been identified as functional molecules in Alzheimer's disease (AD) pathogenesis. This study aimed to investigate the diagnostic value of microRNA-485-3p (miR-485-3p) in AD patients, evaluate the effect of miR-485-3p on neuronal viability and neuroinflammation, as well as the underlying molecular mechanisms. METHODS Quantitative Real-Time PCR was used to estimate expression of miR-485-3p and AKT3. A ROC analysis was used to evaluate the diagnostic value of miR-485-3p. The correlation of miR-485-3p with patients' MMSE score and inflammatory response was analyzed. Using Aβ-treated SH-SY5Y and BV2 cells models, the effects of miR-485-3p on neuronal proliferation, apoptosis, and neuroinflammation were explored. A luciferase reporter assay was used to confirm the target gene of miR-485-3p in both SH-SY5Y and BV2 cells. RESULTS Serum miR-485-3p expression was significantly upregulated in AD patients and cell models, which had a high diagnostic accuracy and correlated with MMSE score and inflammatory response in AD patients. The knockdown of miR-485-3p in SH-SY5Y and BV2 cells was found to significantly reverse the effect of Aβ treatment on neuronal viability and neuroinflammation. AKT3 was determined as a target of miR-485-3p, which might mediate the biological function of miR-485-3p in AD pathogenesis. CONCLUSION All the data indicated that increased serum miR-485-3p serves as a diagnostic biomarker in AD patients, and knockdown of miR-485-3p exerts a neuroprotective role by improving neuronal viability and weakening neuroinflammation, which may be mediated by AKT3. This study may provide a novel biomarker and therapeutic target for AD therapy.
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Affiliation(s)
- Ling Yu
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
| | - Haiting Li
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
| | - Wenhu Liu
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
| | - Ligong Zhang
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
| | - Qun Tian
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
| | - Hairong Li
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
| | - Min Li
- Department of Neurology, Shengli Oilfield Central Hospital, Dongying, China
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26
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Targa A, Dakterzada F, Benítez ID, de Gonzalo-Calvo D, Moncusí-Moix A, López R, Pujol M, Arias A, de Batlle J, Sánchez-de-la-Torre M, Barbé F, Piñol-Ripoll G. Circulating MicroRNA Profile Associated with Obstructive Sleep Apnea in Alzheimer's Disease. Mol Neurobiol 2020; 57:4363-4372. [PMID: 32720075 DOI: 10.1007/s12035-020-02031-z] [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: 03/26/2020] [Accepted: 07/22/2020] [Indexed: 11/29/2022]
Abstract
The diagnosis of obstructive sleep apnea (OSA) in Alzheimer's disease (AD) by polysomnography (PSG) is challenging due to the required collaboration of the patients. In addition, screening questionnaires have demonstrated limited usefulness with this subpopulation. Considering this, we investigated the circulating microRNA (miRNA) profile associated with OSA in AD patients. This study included a carefully selected cohort of females with mild-moderate AD confirmed by biological evaluation (n = 29). The individuals were submitted to one-night PSG to diagnose OSA (apnea-hypopnea index ≥ 15/h) and the blood was collected in the following morning. The plasma miRNA profile was evaluated using RT-qPCR. The patients had a mean (SD) age of 75.8 (5.99) years old with a body mass index of 28.6 (3.83) kg m-2. We observed a subset of 15 miRNAs differentially expressed between OSA and non-OSA patients, of which 10 were significantly correlated with the severity of OSA. Based on this, we built a prediction model that generated an AUC (95% CI) of 0.95 (0.88-1.00) including 5 of the differentially expressed miRNAs that correlated with OSA severity: miR-26a-5p, miR-30a-3p, miR-374a-5p, miR-377-3p, and miR-545-3p. Our preliminary results suggest a plasma miRNA signature associated with the presence of OSA in AD patients. Further studies will be necessary to validate these findings.
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Affiliation(s)
- A Targa
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - F Dakterzada
- Unitat Trastorns Cognitius, Clinical Neuroscience Research, Santa Maria University Hospital, IRBLleida, Rovira Roure n° 44, 25198, Lleida, Spain
| | - I D Benítez
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - D de Gonzalo-Calvo
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain
| | - A Moncusí-Moix
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - R López
- Unitat Trastorns Cognitius, Clinical Neuroscience Research, Santa Maria University Hospital, IRBLleida, Rovira Roure n° 44, 25198, Lleida, Spain
| | - M Pujol
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain
| | - A Arias
- Unitat Trastorns Cognitius, Clinical Neuroscience Research, Santa Maria University Hospital, IRBLleida, Rovira Roure n° 44, 25198, Lleida, Spain
| | - J de Batlle
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - M Sánchez-de-la-Torre
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Group of Precision Medicine in Chronic Diseases, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain
| | - F Barbé
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Gerard Piñol-Ripoll
- Unitat Trastorns Cognitius, Clinical Neuroscience Research, Santa Maria University Hospital, IRBLleida, Rovira Roure n° 44, 25198, Lleida, Spain.
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27
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Soleimani Zakeri NS, Pashazadeh S, MotieGhader H. Gene biomarker discovery at different stages of Alzheimer using gene co-expression network approach. Sci Rep 2020; 10:12210. [PMID: 32699331 PMCID: PMC7376049 DOI: 10.1038/s41598-020-69249-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 07/08/2020] [Indexed: 12/24/2022] Open
Abstract
Alzheimer's disease (AD) is a chronic neurodegenerative disorder. It is the most common type of dementia that has remained as an incurable disease in the world, which destroys the brain cells irreversibly. In this study, a systems biology approach was adopted to discover novel micro-RNA and gene-based biomarkers of the diagnosis of Alzheimer's disease. The gene expression data from three AD stages (Normal, Mild Cognitive Impairment, and Alzheimer) were used to reconstruct co-expression networks. After preprocessing and normalization, Weighted Gene Co-Expression Network Analysis (WGCNA) was used on a total of 329 samples, including 145 samples of Alzheimer stage, 80 samples of Mild Cognitive Impairment (MCI) stage, and 104 samples of the Normal stage. Next, three gene-miRNA bipartite networks were reconstructed by comparing the changes in module groups. Then, the functional enrichment analyses of extracted genes of three bipartite networks and miRNAs were done, respectively. Finally, a detailed analysis of the authentic studies was performed to discuss the obtained biomarkers. The outcomes addressed proposed novel genes, including MBOAT1, ARMC7, RABL2B, HNRNPUL1, LAMTOR1, PLAGL2, CREBRF, LCOR, and MRI1and novel miRNAs comprising miR-615-3p, miR-4722-5p, miR-4768-3p, miR-1827, miR-940 and miR-30b-3p which were related to AD. These biomarkers were proposed to be related to AD for the first time and should be examined in future clinical studies.
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Affiliation(s)
| | - Saeid Pashazadeh
- Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran.
| | - Habib MotieGhader
- Department of Computer Engineering, Gowgan Educational Center, Tabriz Branch, Islamic Azad University, Tabriz, Iran
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28
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Lafourcade CA, Fernández A, Ramírez JP, Corvalán K, Carrasco MÁ, Iturriaga A, Bátiz LF, Luarte A, Wyneken U. A Role for mir-26a in Stress: A Potential sEV Biomarker and Modulator of Excitatory Neurotransmission. Cells 2020; 9:cells9061364. [PMID: 32492799 PMCID: PMC7349773 DOI: 10.3390/cells9061364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 01/08/2023] Open
Abstract
Stress is a widespread problem in today’s societies, having important consequences on brain function. Among the plethora of mechanisms involved in the stress response at the molecular level, the role of microRNAs (miRNAs) is beginning to be recognized. The control of gene expression by these noncoding RNAs makes them essential regulators of neuronal and synaptic physiology, and alterations in their levels have been associated with pathological conditions and mental disorders. In particular, the excitatory (i.e., glutamate-mediated) neurotransmission is importantly affected by stress. Here, we found that loss of miR-26a-5p (miR-26a henceforth) function in primary hippocampal neurons increased the frequency and amplitude of miniature excitatory currents, as well as the expression levels of the excitatory postsynaptic scaffolding protein PSD95. Incubation of primary hippocampal neurons with corticosterone downregulated miR-26a, an effect that mirrored our in vivo results, as miR-26a was downregulated in the hippocampus as well as in blood serum-derived small extracellular vesicles (sEVs) of rats exposed to two different stress paradigms by movement restriction (i.e., stress by restraint in cages or by complete immobilization in bags). Overall, these results suggest that miR-26a may be involved in the generalized stress response and that a stress-induced downregulation of miR-26a could have long-term effects on glutamate neurotransmission.
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Affiliation(s)
- Carlos Andrés Lafourcade
- Centro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago PC 7620001, Chile; (A.F.); (J.P.R.); (K.C.); (L.F.B.)
- Correspondence: (C.A.L.); (U.W.)
| | - Anllely Fernández
- Centro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago PC 7620001, Chile; (A.F.); (J.P.R.); (K.C.); (L.F.B.)
| | - Juan Pablo Ramírez
- Centro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago PC 7620001, Chile; (A.F.); (J.P.R.); (K.C.); (L.F.B.)
| | - Katherine Corvalán
- Centro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago PC 7620001, Chile; (A.F.); (J.P.R.); (K.C.); (L.F.B.)
| | - Miguel Ángel Carrasco
- Facultad de Ingeniería y Ciencias Aplicadas, Universidad de los Andes, Santiago PC 7620001, Chile;
| | - Andrés Iturriaga
- Instituto de Salud Poblacional, Facultad de Medicina, Universidad de Chile, Santiago PC 8380453, Chile;
| | - Luis Federico Bátiz
- Centro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago PC 7620001, Chile; (A.F.); (J.P.R.); (K.C.); (L.F.B.)
| | - Alejandro Luarte
- Biomedical Neuroscience Institute, Universidad de Chile, Santiago PC 8380453, Chile;
| | - Ursula Wyneken
- Centro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago PC 7620001, Chile; (A.F.); (J.P.R.); (K.C.); (L.F.B.)
- Correspondence: (C.A.L.); (U.W.)
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29
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Han C, Guo L, Yang Y, Guan Q, Shen H, Sheng Y, Jiao Q. Mechanism of microRNA-22 in regulating neuroinflammation in Alzheimer's disease. Brain Behav 2020; 10:e01627. [PMID: 32307887 PMCID: PMC7303389 DOI: 10.1002/brb3.1627] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/28/2020] [Accepted: 03/10/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Study on the expression of miRNA-22 in serum of Alzheimer's disease (AD) patients and the mechanism of neuroinflammation regulation. METHODS ELISA assay was used to detect the serum level of inflammatory factors, including interleukin-1β (IL-1β), interleukin-18 (IL-18), and tumor necrosis factor-α in AD patients. TargetScan database and luciferase reporter gene assay indicated that gasdermin D (GSDMD) was the target gene of miRNA-22. miRNA-22 mimic was transfected into microglia, followed by administration of LPS and Nigericin to induce pyroptosis. RESULTS In this study, we found that the expression level of miRNA-22 in peripheral blood was lower in AD patients than that in healthy population. The expression of inflammatory factors was higher in AD patients than that in healthy people, which was negatively correlated with miRNA-22. miRNA-22 mimic could significantly inhibit pyroptosis, the expression of GSDMD and p30-GSDMD was down-regulated, the release of inflammatory factor was decreased, and the expression of NLRP3 inflammasome was down-regulated as feedback. In the APP/PS1 double transgenic mouse model, the injection of miRNA-22 mimic significantly improved the memory ability and behavior of mice. In addition, the expression of the vital protein of pyroptosis in mouse brain tissue, including GSDMD and p30-GSDMD, was down-regulated, and the expression of inflammatory factors was also decreased. CONCLUSION miRNA-22 was negatively correlated with the expression of inflammatory factors in AD patients, and miRNA-22 could inhibit the release of inflammatory cytokines by regulating the inflammatory pyroptosis of glial cells via targeting GSDMD, thereby improving cognitive ability in AD mice. miRNA-22 and pyroptosis are potential novel therapeutic targets in the treatment of AD.
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Affiliation(s)
- Chenyang Han
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, China.,Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Li Guo
- Department of Center Laboratory, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yi Yang
- Department of Neurology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qiaobing Guan
- Department of Neurology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Heping Shen
- Department of Neurology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yongjia Sheng
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qingcai Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, China
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30
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Yang F, Diao X, Wang F, Wang Q, Sun J, Zhou Y, Xie J. Identification of Key Regulatory Genes and Pathways in Prefrontal Cortex of Alzheimer's Disease. Interdiscip Sci 2020; 12:90-98. [PMID: 32006383 DOI: 10.1007/s12539-019-00353-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 12/21/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder partly induced by dysregulation of different brain regions. Prefrontal cortex (PFC) dysregulation has been reported to associate with mental symptoms such as delusion, apathy, and depression in AD patients. However, the internal mechanisms have not yet been well-understood. This study aims to identify the potential therapeutic target genes and related pathways in PFC of AD. First, differential expression analyses were performed on transcriptome microarray of PFC between AD specimens and non-AD controls. Second, protein-protein interaction networks were constructed based on the identified differentially expressed genes to explore candidate therapeutic target genes. Finally, these candidate genes were validated through biological experiments. The enrichment analyses showed that the differentially expressed genes were significantly enriched in protein functions and pathways related to AD. Furthermore, the top ten hub genes in the protein-protein interaction network (ELAVL1, CUL3, MAPK6, FBXW11, YWHAE, YWHAZ, GRB2, CLTC, YWHAQ, and PDHA1) were proved to be directly or indirectly related to AD. Besides, six genes (PDHA1, CLTC, YWHAE, MAPK6, YWHAZ, and GRB2) of which were validated to significantly altered in AD mice by biological experiments. Importantly, the most significantly changed gene, PDHA1, was proposed for the first time that may be serve as a target gene in AD treatment. In summary, several genes and pathways that play critical roles in PFC of AD patients have been uncovered, which will provide novel insights on molecular targets for treatment and diagnostic biomarkers of AD.
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Affiliation(s)
- Fuzhang Yang
- School of Computer Engineering and Science, Shanghai University, Shanghai, China
| | - Xin Diao
- School of Computer Engineering and Science, Shanghai University, Shanghai, China
| | - Fushuai Wang
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Quanwei Wang
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Jiamin Sun
- School of Computer Engineering and Science, Shanghai University, Shanghai, China
| | - Yan Zhou
- Laboratory on Naturopathy, College of Physical Education, Shanghai University, Shanghai, China
| | - Jiang Xie
- School of Computer Engineering and Science, Shanghai University, Shanghai, China.
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Slota JA, Medina SJ, Klassen M, Gorski D, Mesa CM, Robertson C, Mitchell G, Coulthart MB, Pritzkow S, Soto C, Booth SA. Identification of circulating microRNA signatures as potential biomarkers in the serum of elk infected with chronic wasting disease. Sci Rep 2019; 9:19705. [PMID: 31873177 PMCID: PMC6928025 DOI: 10.1038/s41598-019-56249-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/06/2019] [Indexed: 12/23/2022] Open
Abstract
Chronic wasting disease (CWD) is an emerging infectious prion disorder that is spreading rapidly in wild populations of cervids in North America. The risk of zoonotic transmission of CWD is as yet unclear but a high priority must be to minimize further spread of the disease. No simple diagnostic tests are available to detect CWD quickly or in live animals; therefore, easily accessible biomarkers may be useful in identifying infected animals. MicroRNAs (miRNAs) are a class of small, non-coding RNA molecules that circulate in blood and are promising biomarkers for several infectious diseases. In this study we used next-generation sequencing to characterize the serum miRNA profiles of 35 naturally infected elk that tested positive for CWD in addition to 35 elk that tested negative for CWD. A total of 21 miRNAs that are highly conserved amongst mammals were altered in abundance in sera, irrespective of hemolysis in the samples. A number of these miRNAs have previously been associated with prion diseases. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the discriminative potential of these miRNAs as biomarkers for the diagnosis of CWD. We also determined that a subgroup of 6 of these miRNAs were consistently altered in abundance in serum from hamsters experimentally infected with scrapie. This suggests that common miRNA candidate biomarkers could be selected for prion diseases in multiple species. Furthermore, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses pointed to a strong correlation for 3 of these miRNAs, miR-148a-3p, miR-186-5p, miR-30e-3p, with prion disease.
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Affiliation(s)
- Jessy A Slota
- Zoonotic Diseases & Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, 1015 Arlington St., Winnipeg, MB, R3E 3R2, Canada
- Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, 730 William Ave., Winnipeg, MB, R3E 0W3, Canada
| | - Sarah J Medina
- Zoonotic Diseases & Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, 1015 Arlington St., Winnipeg, MB, R3E 3R2, Canada
| | - Megan Klassen
- Zoonotic Diseases & Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, 1015 Arlington St., Winnipeg, MB, R3E 3R2, Canada
| | - Damian Gorski
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas Health Science Center at Houston, 6431 Fannin St., Houston, Texas, 77030, USA
| | - Christine M Mesa
- Zoonotic Diseases & Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, 1015 Arlington St., Winnipeg, MB, R3E 3R2, Canada
| | - Catherine Robertson
- Zoonotic Diseases & Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, 1015 Arlington St., Winnipeg, MB, R3E 3R2, Canada
| | - Gordon Mitchell
- National and OIE Reference Laboratory for Scrapie and CWD, Canadian Food Inspection Agency, Ottawa Laboratory Fallowfield, Ottawa, ON, K2H 8P9, Canada
| | - Michael B Coulthart
- Canadian Creutzfeldt-Jakob Disease Surveillance System, Centre for Foodborne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Ottawa, ON, K1A 0K9, Canada
| | - Sandra Pritzkow
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas Health Science Center at Houston, 6431 Fannin St., Houston, Texas, 77030, USA
| | - Claudio Soto
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas Health Science Center at Houston, 6431 Fannin St., Houston, Texas, 77030, USA
| | - Stephanie A Booth
- Zoonotic Diseases & Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, 1015 Arlington St., Winnipeg, MB, R3E 3R2, Canada.
- Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, 730 William Ave., Winnipeg, MB, R3E 0W3, Canada.
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32
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Van der Auwera S, Ameling S, Wittfeld K, d'Harcourt Rowold E, Nauck M, Völzke H, Suhre K, Najafi-Shoushtari H, Methew J, Ramachandran V, Bülow R, Völker U, Grabe HJ. Association of childhood traumatization and neuropsychiatric outcomes with altered plasma micro RNA-levels. Neuropsychopharmacology 2019; 44:2030-2037. [PMID: 31284290 PMCID: PMC6898678 DOI: 10.1038/s41386-019-0460-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 12/21/2022]
Abstract
Childhood traumatization (CT) is associated with the development of several neuropsychiatric disorders in later life. Experimental data in animals and observational data in humans revealed evidence for biological alterations in response to CT that may contribute to its long-term consequences. This includes epigenetic changes in miRNA levels that contribute to complex alterations of gene expression. We investigated the association between CT and 121 miRNAs in a target sample of N = 150 subjects from the general population and patients from the Department of Psychiatry. We hypothesized that CT exhibits a long-term effect on miRNA plasma levels. We supported our findings using bioinformatics tools and databases. Among the 121 miRNAs 22 were nominally significantly associated with CT and four of them (let-7g-5p, miR-103a-3p, miR-107, and miR-142-3p) also after correction for multiple testing; most of them were previously associated with Alzheimer's disease (AD) or depression. Pathway analyses of target genes identified significant pathways involved in neurodevelopment, inflammation and intracellular transduction signaling. In an independent general population sample (N = 587) three of the four miRNAs were replicated. Extended analyses in the general population sample only (N = 687) showed associations of the four miRNAs with gender, memory, and brain volumes. We gained increasing evidence for a link between CT, depression and AD through miRNA alterations. We hypothesize that depression and AD not only share environmental factors like CT but also biological factors like altered miRNA levels. This miRNA pattern could serve as mediating factor on the biological path from CT to adult neuropsychiatric disorders.
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Affiliation(s)
- Sandra Van der Auwera
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany.
- German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany.
| | - Sabine Ameling
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany
| | - Katharina Wittfeld
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
- German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | | | - Matthias Nauck
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Henry Völzke
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar
| | - Hani Najafi-Shoushtari
- Department of Cell and Developmental Biology, Weill Cornell Medicine, New York, 10021, NY, USA
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar
| | - Jaicy Methew
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar
| | - Vimal Ramachandran
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar
| | - Robin Bülow
- Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Uwe Völker
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, Greifswald, Germany
| | - Hans J Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
- German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
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Kalinin S, Meares GP, Lin SX, Pietruczyk EA, Saher G, Spieth L, Nave KA, Boullerne AI, Lutz SE, Benveniste EN, Feinstein DL. Liver kinase B1 depletion from astrocytes worsens disease in a mouse model of multiple sclerosis. Glia 2019; 68:600-616. [PMID: 31664743 PMCID: PMC7337013 DOI: 10.1002/glia.23742] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 09/19/2019] [Accepted: 10/05/2019] [Indexed: 12/15/2022]
Abstract
Liver kinase B1 (LKB1) is a ubiquitously expressed kinase involved in the regulation of cell metabolism, growth, and inflammatory activation. We previously reported that a single nucleotide polymorphism in the gene encoding LKB1 is a risk factor for multiple sclerosis (MS). Since astrocyte activation and metabolic function have important roles in regulating neuroinflammation and neuropathology, we examined the serine/threonine kinase LKB1 in astrocytes in a chronic experimental autoimmune encephalomyelitis mouse model of MS. To reduce LKB1, a heterozygous astrocyte-selective conditional knockout (het-cKO) model was used. While disease incidence was similar, disease severity was worsened in het-cKO mice. RNAseq analysis identified Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways enriched in het-cKO mice relating to mitochondrial function, confirmed by alterations in mitochondrial complex proteins and reductions in mRNAs related to astrocyte metabolism. Enriched pathways included major histocompatibility class II genes, confirmed by increases in MHCII protein in spinal cord and cerebellum of het-cKO mice. We observed increased numbers of CD4+ Th17 cells and increased neuronal damage in spinal cords of het-cKO mice, associated with reduced expression of choline acetyltransferase, accumulation of immunoglobulin-γ, and reduced expression of factors involved in motor neuron survival. In vitro, LKB1-deficient astrocytes showed reduced metabolic function and increased inflammatory activation. These data suggest that metabolic dysfunction in astrocytes, in this case due to LKB1 deficiency, can exacerbate demyelinating disease by loss of metabolic support and increase in the inflammatory environment.
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Affiliation(s)
- Sergey Kalinin
- Department of Anesthesiology, University of Illinois, Chicago, Illinois
| | - Gordon P Meares
- Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, West Virginia
| | - Shao Xia Lin
- Department of Anesthesiology, University of Illinois, Chicago, Illinois
| | | | - Gesine Saher
- Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Gottingen, Germany
| | - Lena Spieth
- Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Gottingen, Germany
| | - Klaus-Armin Nave
- Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Gottingen, Germany
| | - Anne I Boullerne
- Department of Anesthesiology, University of Illinois, Chicago, Illinois
| | - Sarah E Lutz
- Department of Anatomy and Cell Biology, University of Illinois, Chicago, Illinois
| | - Etty N Benveniste
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Douglas L Feinstein
- Department of Anesthesiology, University of Illinois, Chicago, Illinois.,Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, Illinois
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Exploratory study on microRNA profiles from plasma-derived extracellular vesicles in Alzheimer's disease and dementia with Lewy bodies. Transl Neurodegener 2019; 8:31. [PMID: 31592314 PMCID: PMC6775659 DOI: 10.1186/s40035-019-0169-5] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 08/19/2019] [Indexed: 12/11/2022] Open
Abstract
Background Because of the increasing life expectancy in our society, aging-related neurodegenerative disorders are one of the main issues in global health. Most of these diseases are characterized by the deposition of misfolded proteins and a progressive cognitive decline. Among these diseases, Alzheimer’s disease (AD) and dementia with Lewy bodies (DLB) are the most common types of degenerative dementia. Although both show specific features, an important neuropathological and clinical overlap between them hampers their correct diagnosis. In this work, we identified molecular biomarkers aiming to improve the misdiagnosis between both diseases. Methods Plasma extracellular vesicles (EVs) -from DLB, AD and healthy controls- were isolated using size-exclusion chromatography (SEC) and characterized by flow cytometry, Nanoparticle Tracking Analysis (NTA) and cryo-electron microscopy. Next Generation Sequencing (NGS) and related bibliographic search was performed and a selected group of EV-associated microRNAs (miRNAs) was analysed by qPCR. Results Results uncovered two miRNAs (hsa-miR-451a and hsa-miR-21-5p) significantly down-regulated in AD samples respect to DLB patients, and a set of four miRNAs (hsa-miR-23a-3p, hsa-miR-126-3p, hsa-let-7i-5p, and hsa-miR-151a-3p) significantly decreased in AD respect to controls. The two miRNAs showing decreased expression in AD in comparison to DLB provided area under the curve (AUC) values of 0.9 in ROC curve analysis, thus suggesting their possible use as biomarkers to discriminate between both diseases. Target gene analysis of these miRNAs using prediction online tools showed accumulation of phosphorylation enzymes, presence of proteasome-related proteins and genes involved in cell death among others. Conclusion Our data suggest that plasma-EV associated miRNAs may reflect a differential profile for a given dementia-related disorder which, once validated in larger cohorts of patients, could help to improve the differential diagnosis of DLB versus AD. Electronic supplementary material The online version of this article (10.1186/s40035-019-0169-5) contains supplementary material, which is available to authorized users.
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35
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Guzman-Martinez L, Maccioni RB, Andrade V, Navarrete LP, Pastor MG, Ramos-Escobar N. Neuroinflammation as a Common Feature of Neurodegenerative Disorders. Front Pharmacol 2019; 10:1008. [PMID: 31572186 PMCID: PMC6751310 DOI: 10.3389/fphar.2019.01008] [Citation(s) in RCA: 405] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 08/08/2019] [Indexed: 12/26/2022] Open
Abstract
Neurodegenerative diseases share the fact that they derive from altered proteins that undergo an unfolding process followed by formation of β-structures and a pathological tendency to self-aggregate in neuronal cells. This is a characteristic of tau protein in Alzheimer’s disease and several tauopathies associated with tau unfolding, α-synuclein in Parkinson’s disease, and huntingtin in Huntington disease. Usually, the self-aggregation products are toxic to these cells, and toxicity spreads all over different brain areas. We have postulated that these protein unfolding events are the molecular alterations that trigger several neurodegenerative disorders. Most interestingly, these events occur as a result of neuroinflammatory cascades involving alterations in the cross-talks between glial cells and neurons as a consequence of the activation of microglia and astrocytes. The model we have hypothesized for Alzheimer’s disease involves damage signals that promote glial activation, followed by nuclear factor NF-kβ activation, synthesis, and release of proinflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, IL-6, and IL-12 that affect neuronal receptors with an overactivation of protein kinases. These patterns of pathological events can be applied to several neurodegenerative disorders. In this context, the involvement of innate immunity seems to be a major paradigm in the pathogenesis of these diseases. This is an important element for the search for potential therapeutic approaches for all these brain disorders.
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Affiliation(s)
- Leonardo Guzman-Martinez
- Laboratory of Neuroscience, Faculty of Sciences, University of Chile & International Center for Biomedicine (ICC), Santiago, Chile
| | - Ricardo B Maccioni
- Laboratory of Neuroscience, Faculty of Sciences, University of Chile & International Center for Biomedicine (ICC), Santiago, Chile.,Department of Neurological Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Víctor Andrade
- Laboratory of Neuroscience, Faculty of Sciences, University of Chile & International Center for Biomedicine (ICC), Santiago, Chile
| | - Leonardo Patricio Navarrete
- Laboratory of Neuroscience, Faculty of Sciences, University of Chile & International Center for Biomedicine (ICC), Santiago, Chile
| | - María Gabriela Pastor
- Laboratory of Neuroscience, Faculty of Sciences, University of Chile & International Center for Biomedicine (ICC), Santiago, Chile.,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Nicolas Ramos-Escobar
- Laboratory of Neuroscience, Faculty of Sciences, University of Chile & International Center for Biomedicine (ICC), Santiago, Chile
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36
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Yuan X, Meng D, Cao P, Sun L, Pang Y, Li Y, Wang X, Luo Z, Zhang L, Liu G. Identification of pathogenic genes and transcription factors in vitiligo. Dermatol Ther 2019; 32:e13025. [PMID: 31306558 DOI: 10.1111/dth.13025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/01/2019] [Accepted: 07/11/2019] [Indexed: 12/21/2022]
Abstract
Our study aimed to identify the key genes and upstream regulators in vitiligo. To screen the pathogenic genes of vitiligo, an integrated analysis was performed by using the microarray datasets in vitiligo derived from the Gene Expression Omnibus (GEO) database. The functional annotation and potential pathways of differentially expressed genes (DEGs) were further explored by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. We constructed a vitiligo-specific transcriptional regulatory network to identify crucial transcriptional factors that target the DEGs in vitiligo. From two GEO datasets, we identified 1863 DEGs (744 downregulated DEGs and 1,119 upregulated DEGs [false discovery rate < 0.05, |Combined.ES| > 1]) between lesional tissues and nonlesional tissues. GO and KEGG analyses revealed that ubiquitin-mediated proteolysis and the endoplasmic reticulum were significantly enriched pathways for DEGs. The expressions of premelanosome (PMEL), melan-A (MLANA), dopachrome tautomerase (DCT), SRY-boxtranscription factor 10 (SOX10), tyrosinase-related protein 1 (TYRP1), and melanocortin 1 receptor (MC1R) were shown to be involved in the pathogenesis of vitiligo. We concluded that PMEL, MLANA), DCT, SOX10, TYRP1, and MC1R may play a role in vitiligo, among which TYRP1 and MC1R are regulated by forkhead box J2 (FOXJ2). Our finding may contribute to the development of new potential biomarkers, reveal the underlying pathogenesis of vitiligo, and identify novel therapeutic targets for vitiligo.
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Affiliation(s)
- Xiangfeng Yuan
- Department of Dermatology, Shandong University, Jinan, Shandong, China.,Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
| | - Dan Meng
- Weifang Medical University, Weifang, Shandong, China
| | - Peihua Cao
- Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
| | - Lina Sun
- Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
| | - Yunyan Pang
- Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
| | - Yuan Li
- Department of Dermatology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Xing Wang
- Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
| | - Zengxiang Luo
- Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
| | - Li Zhang
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - Guoyan Liu
- Department of Dermatology, Weifang Medical University Hospital, Weifang, Shandong, China
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37
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Feng J, Xu J. Identification of pathogenic genes and transcription factors in glaucoma. Mol Med Rep 2019; 20:216-224. [PMID: 31115504 DOI: 10.3892/mmr.2019.10236] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/03/2019] [Indexed: 11/06/2022] Open
Abstract
Glaucoma is a group of eye diseases characterized by alterations in the contour of the optic nerve head, with corresponding visual field defects and progressive loss of retinal ganglion cells. The present study aimed to identify the key genes and upstream regulators in glaucoma. To screen the pathogenic genes involved in glaucoma, an integrated analysis was performed by using the microarray datasets in glaucoma derived from the Gene Expression Omnibus (GEO) database. The functional annotation and potential pathways of differentially expressed genes (DEGs) were additionally examined by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. A glaucoma‑specific transcriptional regulatory network was constructed to identify crucial transcriptional factors that target the DEGs in glaucoma. From two GEO datasets, 1,935 DEGs (951 upregulated and 984 downregulated genes) between glaucoma and normal controls were identified. GO and KEGG analyses identified that 'eye development' [false discovery rate (FDR)=0.00415533] and 'visual perception' (FDR=0.00713283) were significantly enriched pathways for DEGs. The expression of lipocalin 2 (LCN2), monoamine oxidase A (MAOA), hemoglobin subunit β (HBB), paired box 6 (PAX6), fibronectin (FN1) and cAMP responsive element binding protein 1 (CREB1) were demonstrated to be involved in the pathogenesis of glaucoma. In conclusion, LCN2, MAOA, HBB, PAX6, FN1 and CREB1 may serve roles in glaucoma, regulated by PAX4, solute carrier family 22 member 1, hepatocyte nuclear factor 4 α and ELK1, ETS transcription factor. These data may contribute to the development of novel potential biomarkers, reveal the underlying pathogenesis and additionally identify novel therapeutic targets for glaucoma.
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Affiliation(s)
- Jie Feng
- Department of Ophthalmology, The First People's Hospital of Jining, Jining, Shandong 272011, P.R. China
| | - Jing Xu
- Department of Ophthalmology, The First People's Hospital of Jining, Jining, Shandong 272011, P.R. China
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Gong R, Ren S, Chen M, Wang Y, Zhang G, Shi L, Zhang C, Su R, Li Y. Bioinformatics Analysis Reveals the Altered Gene Expression of Patients with Postmenopausal Osteoporosis Using Liuweidihuang Pills Treatment. BIOMED RESEARCH INTERNATIONAL 2019; 2019:1907906. [PMID: 30809532 PMCID: PMC6369488 DOI: 10.1155/2019/1907906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/12/2018] [Indexed: 12/15/2022]
Abstract
Postmenopausal osteoporosis (PMOP), as well as its associated increased risk for fragility fracture, is one of the most disabling consequences of aging in women. This present study aimed to identify candidate genes that involve pathogenesis of PMOP and the therapeutic mechanism of Liuweidihuang (LWDH) pills on PMOP. We integrated microarray datasets of PMOP derived from the Gene Expression Omnibus (GEO) to screen differentially expressed genes (DEGs) between PMOP and normal controls as well as patients with PMOP and patients after treatment of LWDH pills. GO and KEGG enrichment analysis for DEGs were performed. The shared DEGs, associated with both the pathogenesis of PMOP and the therapeutic mechanism of LWDH, were further analyzed by protein-protein interaction (PPI) network. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to verify the DEGs obtained by our integrated analysis. Compared with normal controls, 1732 DEGs in PMOP were obtained with p<0.05. According to the qRT-PCR results, expression of ATF2, FBXW7, RDX, and RBBP4 was consistent with that in our integrated analysis, generally. GO and KEGG enrichment analysis showed that those DEGs were significantly enriched in regulation of transcription, DNA-dependent, cytoplasm, protein binding, and MAPK signaling pathway. A total of 58 shared DEGs in PMOP versus normal control and in patients with PMOP versus patients after LWDH treatment were identified, which had opposite expression trend in these two comparisons. In the PPI network, CSNK2A1, ATF2, and FBXW7 were three hub proteins. Three genes including ATF2, FBXW7, and RDX were speculated to be therapeutic targets of LWDH for PMOP based on BATMAN-TCM database. We speculated that three genes of ATF2, FBXW7, and RDX may play crucial roles in both pathogenesis of PMOP and therapeutic mechanism of LWDH on PMOP. Our results may provide clues for the molecular pathogenesis of PMOP and offer new possibilities for treatment of PMOP.
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Affiliation(s)
- Rui Gong
- Hebei Medical University Endocrine Research Institute, China
| | - Shan Ren
- Department of ICU, Hebei General Hospital, China
| | - Menghui Chen
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, China
| | - Yanli Wang
- Obstetrics and Gynecology, The Third Hospital of Shijiazhuang, China
| | - Guoliang Zhang
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, China
| | - Lijuan Shi
- Department of Endocrinology, The Third Hospital of Shijiazhuang, China
| | - Cuizhao Zhang
- Department of Laboratory, The Third Hospital of Shijiazhuang, China
| | - Ruihong Su
- Department of Laboratory, The Third Hospital of Shijiazhuang, China
| | - Yukun Li
- Department of Endocrinology, The Third Affiliated Hospital of Hebei Medical University, China
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39
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Martinez B, Peplow PV. MicroRNAs as diagnostic and therapeutic tools for Alzheimer's disease: advances and limitations. Neural Regen Res 2019; 14:242-255. [PMID: 30531004 PMCID: PMC6301178 DOI: 10.4103/1673-5374.244784] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common age-related, progressive neurodegenerative disease. It is characterized by memory loss and cognitive decline and responsible for most cases of dementia in the elderly. Late-onset or sporadic AD accounts for > 95% of cases, with age at onset > 65 years. Currently there are no drugs or other therapeutic agents available to prevent or delay the progression of AD. The cellular and molecular changes occurring in the brains of individuals with AD include accumulation of β-amyloid peptide and hyperphosphorylated tau protein, decrease of acetylcholine neurotransmitter, inflammation, and oxidative stress. Aggregation of β-amyloid peptide in extracellular plaques and the hyperphosphorylated tau protein in intracellular neurofibrillary tangles are characteristic of AD. A major challenge is identifying molecular biomarkers of the early-stage AD in patients as most studies have been performed with blood or brain tissue samples (postmortem) at late-stage AD. Subjects with mild cognitive impairment almost always have the neuropathologic features of AD with about 50% of mild cognitive impairment patients progressing to AD. They could provide important information about AD pathomechanism and potentially also highlight minimally or noninvasive, easy-to-access biomarkers. MicroRNAs are dysregulated in AD, and may facilitate the early detection of the disease and potentially the continual monitoring of disease progression and allow therapeutic interventions to be evaluated. Four recent reviews have been published of microRNAs in AD, each of which identified areas of weakness or limitations in the reported studies. Importantly, studies in the last three years have shown considerable progress in overcoming some of these limitations and identifying specific microRNAs as biomarkers for AD and mild cognitive impairment. Further large-scale human studies are warranted with less disparity in the study populations, and using an appropriate method to validate the findings.
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Affiliation(s)
- Bridget Martinez
- Department of Molecular & Cellular Biology, University of California, Merced, CA, USA; Department of Medicine, St. Georges University School of Medicine, Grenada; Department of Physics and Engineering, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Philip V Peplow
- Department of Anatomy, University of Otago, Dunedin, New Zealand
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40
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Lv M, Yang S, Cai L, Qin LQ, Li BY, Wan Z. Effects of Quercetin Intervention on Cognition Function in APP/PS1 Mice was Affected by Vitamin D Status. Mol Nutr Food Res 2018; 62:e1800621. [DOI: 10.1002/mnfr.201800621] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/19/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Menglian Lv
- Department of Nutrition and Food Hygiene; School of Public Health; Soochow University; 199 Ren'ai Road Suzhou 215123 China
| | - Shengyi Yang
- Department of Nutrition and Food Hygiene; School of Public Health; Soochow University; 199 Ren'ai Road Suzhou 215123 China
| | - Lingkai Cai
- Medical College of Soochow University; 199 Ren'ai Road Suzhou 215123 China
| | - Li-qiang Qin
- Department of Nutrition and Food Hygiene; School of Public Health; Soochow University; 199 Ren'ai Road Suzhou 215123 China
| | - Bing-yan Li
- Department of Nutrition and Food Hygiene; School of Public Health; Soochow University; 199 Ren'ai Road Suzhou 215123 China
| | - Zhongxiao Wan
- Department of Nutrition and Food Hygiene; School of Public Health; Soochow University; 199 Ren'ai Road Suzhou 215123 China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Disease; Soochow University; 199 Ren'ai Road Suzhou 215123 China
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Liguori M, Nuzziello N, Introna A, Consiglio A, Licciulli F, D’Errico E, Scarafino A, Distaso E, Simone IL. Dysregulation of MicroRNAs and Target Genes Networks in Peripheral Blood of Patients With Sporadic Amyotrophic Lateral Sclerosis. Front Mol Neurosci 2018; 11:288. [PMID: 30210287 PMCID: PMC6121079 DOI: 10.3389/fnmol.2018.00288] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 07/31/2018] [Indexed: 01/01/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive and fatal neurodegenerative disease. While genetics and other factors contribute to ALS pathogenesis, critical knowledge is still missing and validated biomarkers for monitoring the disease activity have not yet been identified. To address those aspects we carried out this study with the primary aim of identifying possible miRNAs/mRNAs dysregulation associated with the sporadic form of the disease (sALS). Additionally, we explored miRNAs as modulating factors of the observed clinical features. Study included 56 sALS and 20 healthy controls (HCs). We analyzed the peripheral blood samples of sALS patients and HCs with a high-throughput next-generation sequencing followed by an integrated bioinformatics/biostatistics analysis. Results showed that 38 miRNAs (let-7a-5p, let-7d-5p, let-7f-5p, let-7g-5p, let-7i-5p, miR-103a-3p, miR-106b-3p, miR-128-3p, miR-130a-3p, miR-130b-3p, miR-144-5p, miR-148a-3p, miR-148b-3p, miR-15a-5p, miR-15b-5p, miR-151a-5p, miR-151b, miR-16-5p, miR-182-5p, miR-183-5p, miR-186-5p, miR-22-3p, miR-221-3p, miR-223-3p, miR-23a-3p, miR-26a-5p, miR-26b-5p, miR-27b-3p, miR-28-3p, miR-30b-5p, miR-30c-5p, miR-342-3p, miR-425-5p, miR-451a, miR-532-5p, miR-550a-3p, miR-584-5p, miR-93-5p) were significantly downregulated in sALS. We also found that different miRNAs profiles characterized the bulbar/spinal onset and the progression rate. This observation supports the hypothesis that miRNAs may impact the phenotypic expression of the disease. Genes known to be associated with ALS (e.g., PARK7, C9orf72, ALS2, MATR3, SPG11, ATXN2) were confirmed to be dysregulated in our study. We also identified other potential candidate genes like LGALS3 (implicated in neuroinflammation) and PRKCD (activated in mitochondrial-induced apoptosis). Some of the downregulated genes are involved in molecular bindings to ions (i.e., metals, zinc, magnesium) and in ions-related functions. The genes that we found upregulated were involved in the immune response, oxidation-reduction, and apoptosis. These findings may have important implication for the monitoring, e.g., of sALS progression and therefore represent a significant advance in the elucidation of the disease's underlying molecular mechanisms. The extensive multidisciplinary approach we applied in this study was critically important for its success, especially in complex disorders such as sALS, wherein access to genetic background is a major limitation.
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Affiliation(s)
- Maria Liguori
- National Research Council, Institute of Biomedical Technologies, Bari Unit, Bari, Italy
| | - Nicoletta Nuzziello
- National Research Council, Institute of Biomedical Technologies, Bari Unit, Bari, Italy
| | - Alessandro Introna
- Department of Basic Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Arianna Consiglio
- National Research Council, Institute of Biomedical Technologies, Bari Unit, Bari, Italy
| | - Flavio Licciulli
- National Research Council, Institute of Biomedical Technologies, Bari Unit, Bari, Italy
| | - Eustachio D’Errico
- Department of Basic Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Antonio Scarafino
- Department of Basic Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Eugenio Distaso
- Department of Basic Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Isabella L. Simone
- Department of Basic Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
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42
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Song Y, Liu Y, Wu P, Zhang F, Wang G. Genome-wide mRNA expression analysis of peripheral blood from patients with obsessive-compulsive disorder. Sci Rep 2018; 8:12583. [PMID: 30135499 PMCID: PMC6105577 DOI: 10.1038/s41598-018-30624-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 08/02/2018] [Indexed: 11/20/2022] Open
Abstract
The onset of obsessive-compulsive disorder (OCD) involves the interaction of heritability and environment. The aim of this study is to identify the global messenger RNA (mRNA) expressed in peripheral blood from 30 patients with OCD and 30 paired healthy controls. We generated whole-genome gene expression profiles of peripheral blood mononuclear cells (PBMCs) from all the subjects using microarrays. The expression of the top 10 mRNAs was verified by real-time quantitative PCR (qRT-PCR) analysis. We also performed an enrichment analysis of the gene ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) annotations of the differentially expressed mRNAs. We identified 51 mRNAs that were significantly differentially expressed between the subjects with OCD and the controls (fold change ≥1.5; false discovery rate <0.05); 45 mRNAs were down-regulated and 6 mRNAs were up-regulated. The qRT-PCR analysis of 10 selected genes showed that they were all up-regulated, which was opposite to the results obtained from the microarrays. The GO and KEGG enrichment analysis showed that ribosomal pathway was the most enriched pathway among the differentially expressed mRNAs. Our findings support the idea that altered genome expression profiles may underlie the development of OCD.
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Affiliation(s)
- Yuqing Song
- Peking University Sixth Hospital (Institute of Mental Health), Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Centre for Mental Disorders (Peking University Sixth Hospital), Beijing, 100191, China
| | - Yansong Liu
- Department of Clinical Psychology, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, 215137, Jiangsu, China
| | - Panpan Wu
- Wuxi Mental Health Centre, Nanjing Medical University, Wuxi, 214151, Jiangsu, China
| | - Fuquan Zhang
- Wuxi Mental Health Centre, Nanjing Medical University, Wuxi, 214151, Jiangsu, China.
| | - Guoqiang Wang
- Wuxi Mental Health Centre, Nanjing Medical University, Wuxi, 214151, Jiangsu, China.
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Chu T, Shu Y, Qu Y, Gao S, Zhang L. miR-26b inhibits total neurite outgrowth, promotes cells apoptosis and downregulates neprilysin in Alzheimer's disease. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:3383-3390. [PMID: 31949715 PMCID: PMC6962878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/14/2018] [Indexed: 06/10/2023]
Abstract
This study aimed to investigate the effect of miR-26b expression on neurites outgrowth and cells apoptosis in PC12 cellular model of Alzheimer's disease (AD). PC12 cells were stimulated by nerve growth factor and insulted by Aβ1-42 to establish PC12 cellular AD model. Methyl thiazolyl tetrazolium (MTT) assay was then used to detect cells viability. Blank mimic, miR-26b mimic, blank inhibitor and miR-26b inhibitor plasmids were transferred into PC12 cellular AD models as NC1-mimic, miR-26b mimic, NC2-inhibitor and miR-26b inhibitor groups respectively. mRNA level, protein level, total neurite outgrowth and cells apoptosis were determined by qPCR, western blot, microscope and Hoechst/PI, respectively. MTT reduction rate was decreased in Aβ1-42 insult group compared to control group (P<0.001). After plasmids transfection, the total neuritis growth was found to be reduced in miR-26b mimic group compared with NC1-mimic group (P<0.05) while was elevated in miR-26b inhibitor group compared with NC2-inhibitor group (P<0.01). As to cells apoptosis, the percentage of apoptosis cells was increased in miR-26b mimic group than NC1-mimic group (P<0.05), and was decreased in miR-26b inhibitor group than NC2-inhibitor group (P<0.05). In addition, neprilysin (NEP) protein and mRNA expressions were decreased in miR-26b mimic group than NC1-mimic group and was increased in miR-26b inhibitor group than NC2-inhibitor group. However, protein or mRNA expression of EIF2S1 and αTTP was not affected by miR-26b. In conclusion, miR-26b inhibits neurite outgrowth, induces cells apoptosis and downregulates NEP expression in PC12 cellular AD model.
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Affiliation(s)
- Tingting Chu
- Department of Neurology, The First Affiliated Hospital of Harbin Medical UniversityHarbin, China
- The First Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical UniversityHarbin, China
| | - Yongwei Shu
- The First Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical UniversityHarbin, China
| | - Yang Qu
- The First Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical UniversityHarbin, China
| | - Shasha Gao
- Medical Department, Peide HospitalMishan, China
| | - Liming Zhang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical UniversityHarbin, China
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Yang H, Wang H, Shu Y, Li X. miR-103 Promotes Neurite Outgrowth and Suppresses Cells Apoptosis by Targeting Prostaglandin-Endoperoxide Synthase 2 in Cellular Models of Alzheimer's Disease. Front Cell Neurosci 2018; 12:91. [PMID: 29674956 PMCID: PMC5895658 DOI: 10.3389/fncel.2018.00091] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/16/2018] [Indexed: 12/27/2022] Open
Abstract
miR-103 has been reported to be decreased in brain of transgenic mouse model of Alzheimer’s disease (AD) and in cerebrospinal fluid (CSF) of AD patients, while the detailed mechanism of its effect on AD is obscure, thus this study aimed to investigate the effect of miR-103 expression on neurite outgrowth and cells apoptosis as well as its targets in cellular models of AD. Blank mimic (NC1-mimic), miR-103 mimic, blank inhibitor (NC2-mimic) and miR-103 inhibitor plasmids were transferred into PC12 cellular AD model and Cellular AD model of cerebral cortex neurons which were established by Aβ1–42 insult. Rescue experiment was subsequently performed by transferring Prostaglandin-endoperoxide synthase 2 (PTGS2) and miR-103 mimic plasmid. mRNA and protein expressions were detected by qPCR and Western Blot assays. Total neurite outgrowth was detected by microscope, cells apoptosis was determined by Hoechst/PI assay, and apoptotic markers Caspase 3 and p38 expressions were determined by Western Blot assay. In both PC12 and cerebral cortex neurons cellular AD models, miR-103 mimic increases the total neurite outgrowth compared with NC1-mimic, while miR-103 inhibitor decreases the total neurite outgrowth than NC2-inhibitor. The apoptosis rate was decreased in miR-103 mimic group than NC1-mimic group while increased in miR-103 inhibitor group than NC2-inhibitor group. PTGS2, Adisintegrin and metalloproteinase 10 (ADAM10) and neprilysin (NEP) were selected as target genes of miR-103 by bioinformatics analysis. And PTGS2 was found to be conversely regulated by miR-103 expression while ADAM10 and NEP were not affected. After transfection by PTGS2 and miR-103 mimic plasmid in PC12 cellular AD model, the total neurite growth was shortened compared with miR-103 mimic group, and cells apoptosis was enhanced which indicated PTGS2 mimic attenuated the influence of miR-103 mimic on progression of AD. In conclusion, miR-103 promotes total neurite outgrowth and inhibits cells apoptosis by targeting PTGS2 in cellular models of AD.
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Affiliation(s)
- Hui Yang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongcai Wang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yongwei Shu
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xuling Li
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
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Chen P, Liu H, Hou A, Sun X, Li B, Niu J, Hu L. Prognostic Significance of Zinc Finger E-Box-Binding Homeobox Family in Glioblastoma. Med Sci Monit 2018; 24:1145-1151. [PMID: 29476046 PMCID: PMC5834914 DOI: 10.12659/msm.905902] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background Epithelial-mesenchymal transition (EMT) is an essential progress for tumor cell invasion to both epithelial and non-epithelial cancers, and zinc finger E-box-binding homeobox 1/2 (ZEB1/2) is a well-known promoter of EMT. In glioma cell lines, both ZEB1 and ZEB2 have been demonstrated to facilitate cancer cell proliferation and invasion with experiments in vitro. However, the clinical significance of ZEB1 and ZEB2 in glioblastoma (GBM) is still controversial. Material/Methods We detected the expression of ZEB1 and ZEB2 in 91 cases of GBM with immunohistochemistry and investigated the correlation between clinicopathological factors and ZEB family expression with Fisher test. By univariate analysis with Kaplan-Meier test, we explored the prognostic significance of ZEB1/2 expression and the clinicopathological factors in GBM. By multivariate analysis with the Cox regression model, we identified the independent prognostic factors in GBM. Results The percentages of ZEB1 high expression and ZEB2 high expression were 31.9% (29/91) and 41.9% (36/91), respectively. High expression of ZEB2 was significantly associated with lower survival rate of GBM patients (P=0.001). ZEB2, lower KPS score (P=0.004), gross total resection (P<0.001) and higher Ki67 percentage (P=0.001) were notably correlated to worse prognosis of GBM. With multivariate analysis, high expression of ZEB2 was demonstrated to be an independent prognostic factor indicating unfavorable prognosis of GBM (P=0.001, HR=3.86, and 95%CI=1.61–9.23). Conclusions High expression of ZEB2 is an independent prognostic factor predicting unfavorable prognosis of GBM, indicating that ZEB2 or its downstream proteins may be potential drug targets of GBM therapy.
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Affiliation(s)
- Peng Chen
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Hongxin Liu
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Aiwu Hou
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Xibo Sun
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Bingxuan Li
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Jianyi Niu
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Lingling Hu
- Department of Gynecology, Linyi People's Hospital, Linyi, Shandong, China (mainland)
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Kadenbach B. Regulation of Mammalian 13-Subunit Cytochrome c Oxidase and Binding of other Proteins: Role of NDUFA4. Trends Endocrinol Metab 2017; 28:761-770. [PMID: 28988874 DOI: 10.1016/j.tem.2017.09.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/07/2017] [Accepted: 09/08/2017] [Indexed: 11/20/2022]
Abstract
Cytochrome c oxidase (CcO) is the final oxygen accepting enzyme complex (complex IV) of the mitochondrial respiratory chain. In contrast to the other complexes (I, II, and III), CcO is highly regulated via isoforms for six of its ten nuclear-coded subunits, which are differentially expressed in species, tissues, developmental stages, and cellular oxygen concentrations. Recent publications have claimed that NADH dehydrogenase (ubiquinone) 1 alpha subcomplex 4 (NDUFA4), originally identified as subunit of complex I, represents a 14th subunit of CcO. Results on CcO composition in tissues from adult animals and the review of data from recent literature strongly suggest that NDUFA4 is not a 14th subunit of CcO but may represent an assembly factor for CcO or supercomplexes (respirasomes) in mitochondria of growing cells and cancer tissues.
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Sun Y, Zhao Y, Zhao X, Lee RJ, Teng L, Zhou C. Enhancing the Therapeutic Delivery of Oligonucleotides by Chemical Modification and Nanoparticle Encapsulation. Molecules 2017; 22:E1724. [PMID: 29027965 PMCID: PMC6158866 DOI: 10.3390/molecules22101724] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 09/22/2017] [Accepted: 10/09/2017] [Indexed: 12/30/2022] Open
Abstract
Oligonucleotide (ON) drugs, including small interfering RNA (siRNA), microRNA (miRNA) and antisense oligonucleotides, are promising therapeutic agents. However, their low membrane permeability and sensitivity to nucleases present challenges to in vivo delivery. Chemical modifications of the ON offer a potential solution to improve the stability and efficacy of ON drugs. Combined with nanoparticle encapsulation, delivery at the site of action and gene silencing activity of chemically modified ON drugs can be further enhanced. In the present review, several types of ON drugs, selection of chemical modification, and nanoparticle-based delivery systems to deliver these ON drugs are discussed.
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Affiliation(s)
- Yating Sun
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Yarong Zhao
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Xiuting Zhao
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Robert J Lee
- School of Life Sciences, Jilin University, Changchun 130012, China.
- College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA.
| | - Lesheng Teng
- School of Life Sciences, Jilin University, Changchun 130012, China.
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