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Rochín-Hernández LJ, Rochín-Hernández LS, Padilla-Cristerna ML, Duarte-García A, Jiménez-Acosta MA, Figueroa-Corona MP, Meraz-Ríos MA. Mesenchymal Stem Cells from Familial Alzheimer's Patients Express MicroRNA Differently. Int J Mol Sci 2024; 25:1580. [PMID: 38338859 PMCID: PMC10855944 DOI: 10.3390/ijms25031580] [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: 12/31/2023] [Revised: 01/13/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the predominant form of dementia globally. No reliable diagnostic, predictive techniques, or curative interventions are available. MicroRNAs (miRNAs) are vital to controlling gene expression, making them valuable biomarkers for diagnosis and prognosis. This study examines the transcriptome of olfactory ecto-mesenchymal stem cells (MSCs) derived from individuals with the PSEN1(A431E) mutation (Jalisco mutation). The aim is to determine whether this mutation affects the transcriptome and expression profile of miRNAs and their target genes at different stages of asymptomatic, presymptomatic, and symptomatic conditions. Expression microarrays compare the MSCs from mutation carriers with those from healthy donors. The results indicate a distinct variation in the expression of miRNAs and mRNAs among different symptomatologic groups and between individuals with the mutation. Using bioinformatics tools allows us to identify target genes for miRNAs, which in turn affect various biological processes and pathways. These include the cell cycle, senescence, transcription, and pathways involved in regulating the pluripotency of stem cells. These processes are closely linked to inter- and intracellular communication, vital for cellular functioning. These findings can enhance our comprehension and monitoring of the disease's physiological processes, identify new disorder indicators, and develop innovative treatments and diagnostic tools for preventing or treating AD.
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Affiliation(s)
- Lory J. Rochín-Hernández
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico; (L.J.R.-H.); (M.L.P.-C.); (A.D.-G.); (M.A.J.-A.); (M.P.F.-C.)
| | - Lory S. Rochín-Hernández
- Departamento de Biotecnología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico;
| | - Mayte L. Padilla-Cristerna
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico; (L.J.R.-H.); (M.L.P.-C.); (A.D.-G.); (M.A.J.-A.); (M.P.F.-C.)
| | - Andrea Duarte-García
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico; (L.J.R.-H.); (M.L.P.-C.); (A.D.-G.); (M.A.J.-A.); (M.P.F.-C.)
| | - Miguel A. Jiménez-Acosta
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico; (L.J.R.-H.); (M.L.P.-C.); (A.D.-G.); (M.A.J.-A.); (M.P.F.-C.)
| | - María P. Figueroa-Corona
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico; (L.J.R.-H.); (M.L.P.-C.); (A.D.-G.); (M.A.J.-A.); (M.P.F.-C.)
| | - Marco A. Meraz-Ríos
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico; (L.J.R.-H.); (M.L.P.-C.); (A.D.-G.); (M.A.J.-A.); (M.P.F.-C.)
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Vasconcelos CFM, Ribas VT, Petrs-Silva H. Shared Molecular Pathways in Glaucoma and Other Neurodegenerative Diseases: Insights from RNA-Seq Analysis and miRNA Regulation for Promising Therapeutic Avenues. Cells 2023; 12:2155. [PMID: 37681887 PMCID: PMC10486375 DOI: 10.3390/cells12172155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/09/2023] Open
Abstract
Advances in RNA-sequencing technologies have led to the identification of molecular biomarkers for several diseases, including neurodegenerative diseases, such as Alzheimer's, Parkinson's, Huntington's diseases and Amyotrophic Lateral Sclerosis. Despite the nature of glaucoma as a neurodegenerative disorder with several similarities with the other above-mentioned diseases, transcriptional data about this disease are still scarce. microRNAs are small molecules (~17-25 nucleotides) that have been found to be specifically expressed in the CNS as major components of the system regulating the development signatures of neurodegenerative diseases and the homeostasis of the brain. In this review, we sought to identify similarities between the functional mechanisms and the activated pathways of the most common neurodegenerative diseases, as well as to discuss how those mechanisms are regulated by miRNAs, using RNA-Seq as an approach to compare them. We also discuss therapeutically suitable applications for these disease hallmarks in clinical future studies.
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Affiliation(s)
- Carlos Franciney Moreira Vasconcelos
- University of Medicine of Göttingen, 37075 Göttingen, Germany
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Vinicius Toledo Ribas
- Institute of Biological Sciences, Universidade Federal de Minas Gerais (ICB/UFMG), Belo Horizonte 31270-901, Brazil;
| | - Hilda Petrs-Silva
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
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3
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Dong X, Wang H, Zhan L, Li Q, Li Y, Wu G, Wei H, Li Y. miR-153-3p suppresses the differentiation and proliferation of neural stem cells via targeting GPR55. Aging (Albany NY) 2023; 15:8518-8527. [PMID: 37642951 PMCID: PMC10497013 DOI: 10.18632/aging.204002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 04/29/2021] [Indexed: 08/31/2023]
Abstract
Alzheimer's disease is the most frequent neurodegenerative disease and is characterized by progressive cognitive impairment and decline. NSCs (neural stem cells) serve as beneficial and promising adjuncts to treat Alzheimer's disease. This study aimed to determine the role of miR-153-3p expression in NSC differentiation and proliferation. We illustrated that miR-153-3p was decreased and GPR55 was upregulated during NSC differentiation. IL-1β can induce miR-153-3p expression. Luciferase reporter analysis noted that elevated expression of miR-153-3p significantly inhibited the luciferase value of the WT reporter plasmid but did not change the luciferase value of the mut reporter plasmid. Ectopic miR-153-3p expression suppressed GPR55 expression in NSCs and identified GPR55 as a direct target gene of miR-153-3p. Ectopic expression of miR-153-3p inhibited NSC growth and differentiation into astrocytes and neurons. Elevated expression of miR-153-3p induced the release of proinflammatory cytokines, such as TNF-α, IL-1β and IL-6, in NSCs. Furthermore, miR-153-3p inhibited NSC differentiation and proliferation by targeting GPR55 expression. These data suggested that miR-153-3p may act as a clinical target for the therapeutics of neurodegenerative diseases.
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Affiliation(s)
- Xiaolin Dong
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Hui Wang
- Department of Gastroenterology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Liping Zhan
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Qingyun Li
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Yang Li
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Gang Wu
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Huan Wei
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
| | - Yanping Li
- Department of Neurology, The Affiliated Yan’an Hospital of Kunming Medical University, Kunming 650051, Yunnan, China
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4
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Olufunmilayo EO, Holsinger RMD. Roles of Non-Coding RNA in Alzheimer's Disease Pathophysiology. Int J Mol Sci 2023; 24:12498. [PMID: 37569871 PMCID: PMC10420049 DOI: 10.3390/ijms241512498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 07/25/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Alzheimer's disease (AD) is a chronic neurodegenerative disorder that is accompanied by deficits in memory and cognitive functions. The disease is pathologically characterised by the accumulation and aggregation of an extracellular peptide referred to as amyloid-β (Aβ) in the form of amyloid plaques and the intracellular aggregation of a hyperphosphorelated protein tau in the form of neurofibrillary tangles (NFTs) that cause neuroinflammation, synaptic dysfunction, and oxidative stress. The search for pathomechanisms leading to disease onset and progression has identified many key players that include genetic, epigenetic, behavioural, and environmental factors, which lend support to the fact that this is a multi-faceted disease where failure in various systems contributes to disease onset and progression. Although the vast majority of individuals present with the sporadic (non-genetic) form of the disease, dysfunctions in numerous protein-coding and non-coding genes have been implicated in mechanisms contributing to the disease. Recent studies have provided strong evidence for the association of non-coding RNAs (ncRNAs) with AD. In this review, we highlight the current findings on changes observed in circular RNA (circRNA), microRNA (miRNA), short interfering RNA (siRNA), piwi-interacting RNA (piRNA), and long non-coding RNA (lncRNA) in AD. Variations in these ncRNAs could potentially serve as biomarkers or therapeutic targets for the diagnosis and treatment of Alzheimer's disease. We also discuss the results of studies that have targeted these ncRNAs in cellular and animal models of AD with a view for translating these findings into therapies for Alzheimer's disease.
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Affiliation(s)
- Edward O. Olufunmilayo
- Laboratory of Molecular Neuroscience and Dementia, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia;
- Department of Medicine, University College Hospital, Queen Elizabeth Road, Oritamefa, Ibadan 200212, Nigeria
| | - R. M. Damian Holsinger
- Laboratory of Molecular Neuroscience and Dementia, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia;
- Neuroscience, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
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5
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Brown JS. Comparison of Oncogenes, Tumor Suppressors, and MicroRNAs Between Schizophrenia and Glioma: The Balance of Power. Neurosci Biobehav Rev 2023; 151:105206. [PMID: 37178944 DOI: 10.1016/j.neubiorev.2023.105206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 05/15/2023]
Abstract
The risk of cancer in schizophrenia has been controversial. Confounders of the issue are cigarette smoking in schizophrenia, and antiproliferative effects of antipsychotic medications. The author has previously suggested comparison of a specific cancer like glioma to schizophrenia might help determine a more accurate relationship between cancer and schizophrenia. To accomplish this goal, the author performed three comparisons of data; the first a comparison of conventional tumor suppressors and oncogenes between schizophrenia and cancer including glioma. This comparison determined schizophrenia has both tumor-suppressive and tumor-promoting characteristics. A second, larger comparison between brain-expressed microRNAs in schizophrenia with their expression in glioma was then performed. This identified a core carcinogenic group of miRNAs in schizophrenia offset by a larger group of tumor-suppressive miRNAs. This proposed "balance of power" between oncogenes and tumor suppressors could cause neuroinflammation. This was assessed by a third comparison between schizophrenia, glioma and inflammation in asbestos-related lung cancer and mesothelioma (ALRCM). This revealed that schizophrenia shares more oncogenic similarity to ALRCM than glioma.
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6
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MicroRNAs and MAPKs: Evidence of These Molecular Interactions in Alzheimer's Disease. Int J Mol Sci 2023; 24:ijms24054736. [PMID: 36902178 PMCID: PMC10003111 DOI: 10.3390/ijms24054736] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder known to be the leading cause of dementia worldwide. Many microRNAs (miRNAs) were found deregulated in the brain or blood of AD patients, suggesting a possible key role in different stages of neurodegeneration. In particular, mitogen-activated protein kinases (MAPK) signaling can be impaired by miRNA dysregulation during AD. Indeed, the aberrant MAPK pathway may facilitate the development of amyloid-beta (Aβ) and Tau pathology, oxidative stress, neuroinflammation, and brain cell death. The aim of this review was to describe the molecular interactions between miRNAs and MAPKs during AD pathogenesis by selecting evidence from experimental AD models. Publications ranging from 2010 to 2023 were considered, based on PubMed and Web of Science databases. According to obtained data, several miRNA deregulations may regulate MAPK signaling in different stages of AD and conversely. Moreover, overexpressing or silencing miRNAs involved in MAPK regulation was seen to improve cognitive deficits in AD animal models. In particular, miR-132 is of particular interest due to its neuroprotective functions by inhibiting Aβ and Tau depositions, as well as oxidative stress, through ERK/MAPK1 signaling modulation. However, further investigations are required to confirm and implement these promising results.
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Li B, Lu Y, Wang R, Xu T, Lei X, Jin H, Gao X, Xie Y, Liu X, Zeng J. MiR-29c Inhibits TNF-α-Induced ROS Production and Apoptosis in Mouse Hippocampal HT22 Cell Line. Neurochem Res 2023; 48:519-536. [PMID: 36309937 DOI: 10.1007/s11064-022-03776-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/18/2022] [Accepted: 09/29/2022] [Indexed: 02/04/2023]
Abstract
Recent reports have suggested that abnormal miR-29c expression in hippocampus have been implicated in the pathophysiology of some neurodegenerative and neuropsychiatric diseases. However, the underlying effect of miR-29c in regulating hippocampal neuronal function is not clear. In this study, HT22 cells were infected with lentivirus containing miR-29c or miR-29c sponge. Cell counting kit-8 (CCK8) and lactate dehydrogenase (LDH) assay kit were applied to evaluate cell viability and toxicity before and after TNF-α administration. Reactive oxygen species (ROS) generation and mitochondrial membrane potential (MMP) were measured with fluorescent probes. Hoechst 33258 staining and TUNEL assay were used to evaluate cell apoptosis. The expression of key mRNA/proteins (TNFR1, Bcl-2, Bax, TRADD, FADD, caspase-3, -8 and -9) in the apoptosis pathway was detected by PCR or WB. In addition, the protein expression of microtubule-associated protein-2 (MAP-2), nerve growth-associated protein 43 (GAP-43) and synapsin-1 (SYN-1) was detected by WB. As a result, we found that miR-29c overexpression could improve cell viability, attenuate LDH release, reduce ROS production and inhibit MMP depolarization in TNF-α-treated HT22 cells. Furthermore, miR-29c overexpression was found to decrease apoptotic rate, along with decreased expression of Bax, cleaved caspase-3, cleaved caspase-9, and increased expression of Bcl-2 in TNF-α-treated HT22 cells. However, miR-29c sponge exhibited an opposite effects. In addition, in TNF-α-treated HT22 cells, miR-29c overexpression could decrease the expressions of TNFR1, TRADD, FADD and cleaved caspase-8. However, in HT22 cells transfected with miR-29c sponge, TNF-α-induced the expressions of TNFR1, TRADD, FADD and cleaved caspase-8 was significantly exacerbated. At last, TNF-α-induced the decreased expression of MAP-2, GAP-43 and SYN-1 was reversed by miR-29c but exacerbated by miR-29c sponge. Overall, our study demonstrated that miR-29c protects against TNF-α-induced HT22 cells injury through alleviating ROS production and reduce neuronal apoptosis. Therefore, miR-29c might be a potential therapeutic agent for TNF-α accumulation and toxicity-related brain diseases.
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Affiliation(s)
- Bo Li
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Ying Lu
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Rong Wang
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Tao Xu
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Xiaolu Lei
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Huan Jin
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Xiaohong Gao
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Ye Xie
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Xiaohong Liu
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Junwei Zeng
- Department of Physiology, Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Sundaramoorthy TH, Castanho I. The Neuroepigenetic Landscape of Vertebrate and Invertebrate Models of Neurodegenerative Diseases. Epigenet Insights 2022; 15:25168657221135848. [PMID: 36353727 PMCID: PMC9638687 DOI: 10.1177/25168657221135848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Vertebrate and invertebrate models of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis, have been paramount to our understanding of the pathophysiology of these conditions; however, the brain epigenetic landscape is less well established in these disease models. DNA methylation, histone modifications, and microRNAs are among commonly studied mechanisms of epigenetic regulation. Genome-wide studies and candidate studies of specific methylation marks, histone marks, and microRNAs have demonstrated the dysregulation of these mechanisms in models of neurodegenerative diseases; however, the studies to date are scarce and inconclusive and the implications of many of these changes are still not fully understood. In this review, we summarize epigenetic changes reported to date in the brain of vertebrate and invertebrate models used to study neurodegenerative diseases, specifically diseases affecting the aging population. We also discuss caveats of epigenetic research so far and the use of disease models to understand neurodegenerative diseases, with the aim of improving the use of model organisms in this context in future studies.
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Affiliation(s)
| | - Isabel Castanho
- University of Exeter Medical School,
University of Exeter, Exeter, UK
- Beth Israel Deaconess Medical Center,
Boston, MA, USA
- Harvard Medical School, Boston, MA,
USA
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9
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Liu Z, Ma F, Kang Y, Liu X. Gene ssa-miR-301a-3p improves rainbow trout ( Oncorhynchus mykiss) resistance to heat stress by targeting hsp90b2. PeerJ 2022; 10:e13476. [PMID: 35811807 PMCID: PMC9266697 DOI: 10.7717/peerj.13476] [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: 11/26/2021] [Accepted: 05/01/2022] [Indexed: 01/17/2023] Open
Abstract
Rainbow trout (Oncorhynchus mykiss) is a cold-water fish that is commonly harmed by high temperatures. MicroRNAs (miRNAs) are being investigated intensively because they act as essential metabolic regulators and have a role in the heat stress response. Although there have been numerous studies on rainbow trout heat stress, research on miRNA implicated in rainbow trout heat stress is quite restricted. Rainbow trout were sampled at 18 and 24 °C, respectively, to examine the mechanism of miRNA under heat stress, and we identified a heat stress-induced miRNA, ssa-miR-301a-3p, for further investigation based on our bioinformatics analysis of rainbow trout small RNA sequencing data. Bioinformatics research suggested that hsp90b2 is a probable target gene for ssa-miR-301a-3p. QRT-PCR was used to confirm the expression levels of ssa-miR-301a-3p and hsp90b2. Meanwhile, the dual-luciferase reporter assay was employed to validate the ssa-miR-301a-3p-hsp90b2 targeted connection. The results indicated that at 24 °C, the relative expression of ssa-miR-301a-3p was considerably lower than at 18 °C. On the other hand, hsp90b2 expression, followed the opposite pattern. The binding of ssa-miR-301a-3p to the 3'-UTR of hsp90b2 resulted in a substantial decrease in luciferase activity. The findings showed that ssa-miR-301a-3p was implicated in heat stress, and our findings provide fresh insights into the processes of miRNA in response to heat stress in rainbow trout.
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Affiliation(s)
- Zhe Liu
- Gansu Agricultural University, Lanzhou, China
| | - Fang Ma
- Tianshui Normal University, Tianshui, China
| | - Yujun Kang
- Gansu Agricultural University, Lanzhou, China
| | - Xiaoxia Liu
- Gansu Agricultural University, Lanzhou, China
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Chen J, Ding Q, Jiao X, Wang B, Sun Z, Zhang Y, Zhao J. Dexmedetomidine attenuates hippocampal neuroinflammation in postoperative neurocognitive disorders by inhibiting microRNA-329-3p and activating the CREB1/IL1RA axis. Psychopharmacology (Berl) 2022; 239:2171-2186. [PMID: 35412062 DOI: 10.1007/s00213-022-06091-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 02/14/2022] [Indexed: 11/24/2022]
Abstract
RATIONALE Due to its anti-inflammatory effect, dexmedetomidine (DEX) can confer neuroprotection in postoperative neurocognitive disorders (NCD). Here, the mechanism responsible for this effect of DEX is rarely ascertained. OBJECTIVES Our research was implemented to figure out mechanism governing the protection of DEX against hippocampal neuroinflammation in postoperative NCD. METHODS Exploratory laparotomy was applied for generating a postoperative NCD mouse model before bilateral hippocampal injection with microRNA (miR)-329-3p-agomir and intraperitoneal injection with DEX. Cognitive function of mice was evaluated by water maze test and fear conditioning test. Immunofluorescence was performed to assess microglial activation in hippocampus. After cell transfection and DEX treatment, mouse microglial cells (BV-2) were stimulated by lipopolysaccharide (LPS). IL-1β, IL-6, and TNF-α levels and the number of phagocytes were assessed by ELISA and flow cytometry. Dual-luciferase reporter assay was adopted to assess the relationship between miR-329-3p and CREB1. RESULTS miR-329-3p expression was reduced in the postoperative NCD mice after DEX treatment. DEX treatment or miR-329-3p downregulation caused attenuated cognitive dysfunction and microglia activation as well as reduced IL-1β, IL-6, and TNF-α levels in the hippocampus of the postoperative NCD mice. Mechanistically, miR-329-3p inversely targeted CREB1 that activated IL1RA in LPS-induced BV-2 cells. DEX treatment, miR-329-3p inhibition, or CREB1 or IL1RA upregulation curtailed the release of proinflammatory proteins and the number of phagocytes in LPS-induced BV-2 cells. CONCLUSIONS Collectively, our data provided the novel insight of the neuroprotective mechanism of DEX in postoperative NCD pertaining to the miR-329-3p/CREB1/IL1RA axis.
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Affiliation(s)
- Jinquan Chen
- Anesthesia Operation Center, The First Peoples Hospital of Xianyang, Xianyang, 712000, People's Republic of China
| | - Qian Ding
- Anesthesia Operation Center, Xi´an International Medical Center Hospital, No. 777, Xitai Road, 710100, Xi´an, People's Republic of China
| | - Xiangxue Jiao
- Anesthesia Operation Center, The First Peoples Hospital of Xianyang, Xianyang, 712000, People's Republic of China
| | - Binrong Wang
- Anesthesia Operation Center, Xi´an International Medical Center Hospital, No. 777, Xitai Road, 710100, Xi´an, People's Republic of China
| | - Zhenzhong Sun
- Department of Anesthesiology, Guangdong Armed Police Corps Hospital, Guangzhou, 510507, People's Republic of China
| | - Yutao Zhang
- Anesthesia Operation Center, Xi´an International Medical Center Hospital, No. 777, Xitai Road, 710100, Xi´an, People's Republic of China
| | - Juan Zhao
- Anesthesia Operation Center, Xi´an International Medical Center Hospital, No. 777, Xitai Road, 710100, Xi´an, People's Republic of China.
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11
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Moayedi K, Orandi S, Ebrahimi R, Tanhapour M, Moradi M, Abbastabar M, Golestani A. A novel approach to type 3 diabetes mechanism: The interplay between noncoding RNAs and insulin signaling pathway in Alzheimer's disease. J Cell Physiol 2022; 237:2838-2861. [PMID: 35580144 DOI: 10.1002/jcp.30779] [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] [Received: 12/31/2021] [Revised: 04/05/2022] [Accepted: 04/27/2022] [Indexed: 12/06/2022]
Abstract
Today, growing evidence indicates that patients with type 2 diabetes (T2D) are at a higher risk of developing Alzheimer's disease (AD). Indeed, AD as one of the main causes of dementia in people aged more than 65 years can be aggravated by insulin resistance (IR) and other metabolic risk factors related to T2D which are also linked to the function of the brain. Remarkably, a new term called "type 3 diabetes" has been suggested for those people who are diagnosed with AD while also showing the symptoms of IR and T2D. In this regard, the role of genetic and epigenetic changes associated with AD has been confirmed by many studies. On the other hand, it should be noted that the insulin signaling pathway is highly regulated by various mechanisms, including epigenetic factors. Among these, the role of noncoding RNAs (ncRNAs), including microRNAs and long noncoding RNAs has been comprehensively studied with respect to the pathology of AD and the most well-known underlying mechanisms. Nevertheless, the number of studies exploring the association between ncRNAs and the downstream targets of the insulin signaling pathway in the development of AD has notably increased in recent years. With this in view, the present study aimed to review the interplay between different ncRNAs and the insulin signaling pathway targets in the pathogenesis of AD to find a new approach in the field of combining biomarkers or therapeutic targets for this disease.
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Affiliation(s)
- Kiana Moayedi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Orandi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reyhane Ebrahimi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Tanhapour
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Moradi
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Maryam Abbastabar
- Department of Clinical Biochemistry, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Abolfazl Golestani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Ramaswamy P, Christopher R, Kumar Pal P, Debnath M, Yadav R. Plasma microRNAs as a Potential Biomarker for Identification of Progressive Supranuclear Palsy. Diagnostics (Basel) 2022; 12:diagnostics12051204. [PMID: 35626359 PMCID: PMC9139891 DOI: 10.3390/diagnostics12051204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 02/04/2023] Open
Abstract
Progressive supranuclear palsy (PSP) is the second most common Parkinsonian disorder with complex etiology. The underlying molecular mechanism of PSP pathogenesis remains unclear. The present study aims to find the feasibility of using plasma miRNAs as novel biomarkers. Plasma-focused qPCR panels were used for microRNA profiling and identified differentially expressed microRNAs in PSP compared to controls. The DIANA-miRPath v3.0 was used to perform KEGG pathway analysis. We then confirmed the expression of selected candidates by RT-qPCR and their clinical utility was assessed by ROC analysis. Profiling data revealed 28 differentially expressed microRNAs in PSP. Five overexpressed miRNAs were selected for further analysis. The KEGG pathway analysis revealed 48 high-risk pathways. The study revealed that as a single marker—miR-19b-3p, miR-33a-5p, miR-130b-3p, miR-136-3p, and miR-210-3p had a specificity of 64.71%, 82.35%, 68.75%, 82.35%, and 70.59% at sensitivity 77.78%, 77.78%, 66.67%, 73.33%, and 66.67%, respectively. The result suggests that circulating plasma miRNAs were altered in PSP compared to control. The findings of this study may provide potential biomarkers and pathways associated with PSP. Further large-scale validation studies are required to confirm the same.
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Affiliation(s)
- Palaniswamy Ramaswamy
- Department of Neurology, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India; (P.R.); (P.K.P.)
| | - Rita Christopher
- Department of Neurochemistry, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India;
| | - Pramod Kumar Pal
- Department of Neurology, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India; (P.R.); (P.K.P.)
| | - Monojit Debnath
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India;
| | - Ravi Yadav
- Department of Neurology, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India; (P.R.); (P.K.P.)
- Correspondence:
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13
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Zhang R, Jiang L, Li G, Wu J, Tian P, Zhang D, Qin Y, Shi Z, Gao Z, Zhang N, Wang S, Zhou H, Xu S. Advanced Glycosylation End Products Induced Synaptic Deficits and Cognitive Decline Through ROS-JNK-p53/miR-34c/SYT1 Axis in Diabetic Encephalopathy. J Alzheimers Dis 2022; 87:843-861. [PMID: 35404278 DOI: 10.3233/jad-215589] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: miR-34c has been found to be implicated in the pathological process of Alzheimer’s disease, diabetes, and its complications. Objective: To investigate the underlying mechanisms of miR-34c in the pathogenesis of diabetic encephalopathy (DE). Methods: Diabetes mellitus rats were developed by incorporating a high-fat diet and streptozotocin injection. Morris water maze test and novel object recognition test were used to assess the cognitive function of rats. Expression of miR-34c were detected by fluorescence in situ hybridization and qRT-PCR. Immunofluorescence and western blot were used to evaluate synaptotagmin 1 (SYT1) and AdipoR2 or other proteins. Golgi staining was performed to investigate dendritic spine density. Results: The increased miR-34c induced by advanced glycation end-products (AGEs) was mediated by ROS-JNK-p53 pathway, but not ROS-Rb-E2F1 pathway, in hippocampus of DE rats or in HT-22 cells. miR-34c negatively regulated the expression of SYT1, but not AdipoR2, in hippocampal neurons. miR-34c inhibitor rescued the AGE-induced decrease in the density of dendritic spines in primary hippocampal neurons. Administration of AM34c by the intranasal delivery increased the hippocampus levels of SYT1 and ameliorated the cognitive function in DE rats. The serum levels of miR-34c were increased in patients with DE comparing with normal controls. Conclusion: These results demonstrated that AGE-induced oxidative stress mediated increase of miR-34c through ROS-JNK-p53 pathway, resulting in synaptic deficits and cognitive decline by targeting SYT1 in DE, and the miR-34c/SYT1 axis could be considered as a novel therapeutic target for DE patients.
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Affiliation(s)
- Rui Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Lei Jiang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Guofeng Li
- Hebei Center for Disease Control and Prevention, Shijiazhuang, P. R. China
| | - JingJing Wu
- Clinical Laboratory, Cangzhou Central Hospital, Cangzhou, P. R. China
| | - Pei Tian
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Di Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Yushi Qin
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Zhongli Shi
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - ZhaoYu Gao
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Nan Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Shuang Wang
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Huimin Zhou
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
- Department of Endocrinology, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
| | - Shunjiang Xu
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
- Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China
- Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
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14
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Anti-senescent effects of long non-coding RNA H19 on human dermal fibroblast cells through impairing microRNA-296-5p-dependent inhibition of IGF2. Cell Signal 2022; 94:110327. [DOI: 10.1016/j.cellsig.2022.110327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/19/2022] [Accepted: 03/29/2022] [Indexed: 11/23/2022]
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15
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Perdaens O, van Pesch V. Molecular Mechanisms of Immunosenescene and Inflammaging: Relevance to the Immunopathogenesis and Treatment of Multiple Sclerosis. Front Neurol 2022; 12:811518. [PMID: 35281989 PMCID: PMC8913495 DOI: 10.3389/fneur.2021.811518] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/27/2021] [Indexed: 12/18/2022] Open
Abstract
Aging is characterized, amongst other features, by a complex process of cellular senescence involving both innate and adaptive immunity, called immunosenescence and associated to inflammaging, a low-grade chronic inflammation. Both processes fuel each other and partially explain increasing incidence of cancers, infections, age-related autoimmunity, and vascular disease as well as a reduced response to vaccination. Multiple sclerosis (MS) is a lifelong disease, for which considerable progress in disease-modifying therapies (DMTs) and management has improved long-term survival. However, disability progression, increasing with age and disease duration, remains. Neurologists are now involved in caring for elderly MS patients, with increasing comorbidities. Aging of the immune system therefore has relevant implications for MS pathogenesis, response to DMTs and the risks mediated by these treatments. We propose to review current evidence regarding markers and molecular mechanisms of immunosenescence and their relevance to understanding MS pathogenesis. We will focus on age-related changes in the innate and adaptive immune system in MS and other auto-immune diseases, such as systemic lupus erythematosus and rheumatoid arthritis. The consequences of these immune changes on MS pathology, in interaction with the intrinsic aging process of central nervous system resident cells will be discussed. Finally, the impact of immunosenescence on disease evolution and on the safety and efficacy of current DMTs will be presented.
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Affiliation(s)
- Océane Perdaens
- Laboratory of Neurochemistry, Institute of Neuroscience, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Vincent van Pesch
- Laboratory of Neurochemistry, Institute of Neuroscience, Université catholique de Louvain (UCLouvain), Brussels, Belgium
- Department of Neurology, Cliniques universitaires Saint-Luc, Université catholique de Louvain (UCLouvain), Brussels, Belgium
- *Correspondence: Vincent van Pesch
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16
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Dasatinib plus quercetin attenuates some frailty characteristics in SAMP10 mice. Sci Rep 2022; 12:2425. [PMID: 35165353 PMCID: PMC8844286 DOI: 10.1038/s41598-022-06448-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 01/31/2022] [Indexed: 11/16/2022] Open
Abstract
Senolytics are a class of drugs that selectively remove senescent cells. Dasatinib and quercetin have been discovered, and their combination has shown various anti-ageing effects. The SAMP10 mouse strain is a model of brain ageing. Here, we investigated the effect of combination on frailty characteristics in SAMP10. By comparing SAMP10 with SAMR1 mice as normal ageing controls, we investigated some frailty characteristics. Frailty was assessed at 18–38 weeks of age with a clinical frailty index. Motor and cognitive function of these mice were evaluated using behavioral experiments. SAMP10 mice were divided into vehicle and combination, and these functions and histological changes in the brain hippocampus were investigated. Finally, the in vitro effects of combination on oxidative stress-induced senescent muscle and neuronal cells were investigated. As a result, we found that frailty index was higher in SAMP10 than SAMR1. Motor and cognitive function were worse in SAMP10 than SAMR1. Furthermore, combination therapy improved frailty, motor and cognitive function, and the senescent phenotype of the hippocampus compared with vehicle in SAMP10. In summary, SAMP10 showed more marked frailty characteristics than SAMR1, and dasatinib and quercetin attenuated them in SAMP10. From our results, senolytic therapy might contribute protective effects against frailty.
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17
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You D, Cohen JD, Pustovalova O, Lewis L, Shen L. OUP accepted manuscript. Toxicol Sci 2022; 186:221-241. [PMID: 35134991 PMCID: PMC8963304 DOI: 10.1093/toxsci/kfac011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Jennifer D Cohen
- Jennifer D. Cohen, Drug Safety Research & Evaluation, Takeda Development Center Americas, Inc., 9625 Towne Centre Drive, San Diego, CA 92121-1964, USA. E-mail:
| | | | - Lauren Lewis
- Drug Safety Research & Evaluation, Takeda Development Center Americas, Inc., Cambridge, Massachusetts 02139, USA
| | - Lei Shen
- Data Science Institute, Takeda Development Center Americas, Inc., Cambridge, Massachusetts 02139, USA
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18
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Gao Z, Zhang R, Jiang L, Zhou H, Wang Q, Ma Y, Zhang D, Qin Y, Tian P, Zhang N, Shi Z, Xu S. Administration of miR-195 Inhibitor Enhances Memory Function Through Improving Synaptic Degradation and Mitochondrial Dysfunction of the Hippocampal Neurons in SAMP8 Mice. J Alzheimers Dis 2021; 85:1495-1509. [PMID: 34924391 DOI: 10.3233/jad-215301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Mitochondrial dysfunction is an early feature of Alzheimer's disease (AD) and miR-195 is involved in mitochondrial disorder through targeting MFN-2 protein in hippocampal neurons of AD. OBJECTIVE To clarify if administration of miR-195 inhibitor could enhance the memory deficits through improving hippocampal neuron mitochondrial dysfunction in SAMP8 mice. METHODS The expression of miR-195 was detected by RT-qPCR in primary hippocampal neurons and HT-22 cells treated with Aβ 1-42. Morris water maze (MWM) was used to assess the learning and memory function in SAMP8 mice administrated with antagomir-195. Transmission electron microscopy was employed to determine the morphological changes of synapses and mitochondria of hippocampus in SAMP8 mice. Mitochondrial respiration was measured using a high-resolution oxygraph. RESULTS The expression of miR-195 were upregulated in the primary hippocampal neurons and HT-22 cells induced by Aβ 1-42. Inhibition of miR-195 ameliorated the mitochondrial dysfunction in HT-22 cells induced by Aβ 1-42, including mitochondrial morphologic damages, mitochondrial membrane potential, respiration function, and ATP production. Administration of antagomir-195 by the third ventricle injection markedly ameliorated the cognitive function, postsynaptic density thickness, length of synaptic active area, mitochondrial aspect ratio, and area in hippocampus of SAMP8 mice. Finally, antagomir-195 was able to promote an increase in the activity of respiratory chain complex CI and II in SAMP8 mice. CONCLUSION This study demonstrated that miR-195 inhibitor ameliorated the cognitive impairment of AD mice by improving mitochondrial structure damages and dysfunction in the hippocampal neurons, which provide an experimental basis for further exploring the treatment strategy of AD.
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Affiliation(s)
- Zhaoyu Gao
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Rui Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Lei Jiang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Huimin Zhou
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China.,Department of Endocrinology, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
| | - Qian Wang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China
| | - Yingxin Ma
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Di Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Yushi Qin
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Pei Tian
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Nan Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Zhongli Shi
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
| | - Shunjiang Xu
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P. R. China.,Hebei International Joint Research Center for Brain Science, Shijiazhuang, P. R. China.,Hebei Key Laboratory of Brain Science and Psychiatric-Psychologic Disease, Shijiazhuang, P. R. China
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19
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Effects of exosomal miRNAs in the diagnosis and treatment of Alzheimer's disease. Mech Ageing Dev 2021; 200:111593. [PMID: 34756925 DOI: 10.1016/j.mad.2021.111593] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 01/06/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease. Exosomes are extracellular vesicles secreted by a variety of cells, and they participate in intercellular communication by transferring microRNA (miRNA) and other substances. Among the various internal and external factors involved in the occurrence and development of AD, exosome-derived miRNAs have become essential in the pathogenesis and treatment of AD. As nanocarriers of miRNA, exosomes are expected to become an important tool in the pathogenesis, diagnosis, and treatment of AD. This article reviews the roles of exosomal miRNAs in the pathophysiological process, diagnostic biomarkers and treatment of AD.
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20
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Walgrave H, Zhou L, De Strooper B, Salta E. The promise of microRNA-based therapies in Alzheimer's disease: challenges and perspectives. Mol Neurodegener 2021; 16:76. [PMID: 34742333 PMCID: PMC8572071 DOI: 10.1186/s13024-021-00496-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/17/2021] [Indexed: 02/06/2023] Open
Abstract
Multi-pathway approaches for the treatment of complex polygenic disorders are emerging as alternatives to classical monotarget therapies and microRNAs are of particular interest in that regard. MicroRNA research has come a long way from their initial discovery to the cumulative appreciation of their regulatory potential in healthy and diseased brain. However, systematic interrogation of putative therapeutic or toxic effects of microRNAs in (models of) Alzheimer's disease is currently missing and fundamental research findings are yet to be translated into clinical applications. Here, we review the literature to summarize the knowledge on microRNA regulation in Alzheimer's pathophysiology and to critically discuss whether and to what extent these increasing insights can be exploited for the development of microRNA-based therapeutics in the clinic.
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Affiliation(s)
- Hannah Walgrave
- VIB Center for Brain & Disease Research, Leuven, KU, Leuven, Belgium
- Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Lujia Zhou
- Division of Janssen Pharmaceutica NV, Discovery Neuroscience, Janssen Research and Development, Beerse, Belgium
| | - Bart De Strooper
- VIB Center for Brain & Disease Research, Leuven, KU, Leuven, Belgium
- Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
- UK Dementia Research Institute at University College London, London, UK
| | - Evgenia Salta
- Netherlands Institute for Neuroscience, Amsterdam, The Netherlands
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21
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Milenkovic D, Krga I, Dinel AL, Morand C, Laye S, Castanon N. Nutrigenomic modification induced by anthocyanin-rich bilberry extract in the hippocampus of ApoE-/- mice. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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22
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Tan X, Luo Y, Pi D, Xia L, Li Z, Tu Q. MiR-340 Reduces the Accumulation of Amyloid-β Through Targeting BACE1 (β-site Amyloid Precursor Protein Cleaving Enzyme 1) in Alzheimer's Disease. Curr Neurovasc Res 2021; 17:86-92. [PMID: 31957613 DOI: 10.2174/1567202617666200117103931] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 11/22/2019] [Accepted: 11/24/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common neurodegenerative disease, and the accumulation of amyloid-β is the initial process in AD. MicroRNAs (miRNAs) are widely known as key regulators of the accumulation of amyloid-β in AD. This study analyzed the potential effects and possible internal mechanisms of miR-340 on AD. METHODS The expression of miR-340 in senescence-accelerated mouse prone-8 (SAMP8) mouse and senescence-accelerated mice/resistant-1 (SAMR1) mouse was evaluated by qRT-PCR (quantitative real-time polymerase chain reaction). The expression of β-site amyloid precursor protein cleaving enzyme 1 (BACE1) was determined by qRT-PCR and western blot. The binding ability between miR-340 and BACE1 was verified by dual-luciferase reporter assay. In vitro cell model of AD was established in human neuroblastoma SH-SY5Y cells transfected with Swedish mutant form of amyloid precursor protein (APPswe). The effect of miR-340 on the accumulation of amyloid- β was investigated by western blot analysis. Flow cytometry was conducted to detect cell apoptosis. RESULTS MiR-340 was down-regulated in the hippocampus of AD model SAMP8 mouse compared to SAMR1 mouse, while BACE1 was up-regulated in SAMP8, suggesting a negative correlation between miR-340 and BACE1 in SAMP8 mouse. MiR-340 could directly bind with BACE1, and over-expression of miR-340 decreased expression of BACE1 in SH-SY5Y/APPswe cells. MiR- 340 reduced the accumulation of amyloid-β and suppressed cell apoptosis through targeting BACE1 in SH-SY5Y/APPswe cells. CONCLUSION MiR-340 was downregulated in AD and reduced the accumulation of amyloid-β through targeting BACE1, suggesting a potential therapeutic target for AD.
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Affiliation(s)
- Xianpei Tan
- Department of Neurology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434000, China
| | - Yi Luo
- Department of Neurology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434000, China
| | - Dingfang Pi
- Department of Neurology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434000, China
| | - Liexin Xia
- Department of Neurology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434000, China
| | - Zhilian Li
- Department of Neurology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434000, China
| | - Qiang Tu
- Department of Neurology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434000, China
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23
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Baghi M, Yadegari E, Rostamian Delavar M, Peymani M, Ganjalikhani‐Hakemi M, Salari M, Nasr‐Esfahani MH, Megraw TL, Ghaedi K. MiR-193b deregulation is associated with Parkinson's disease. J Cell Mol Med 2021; 25:6348-6360. [PMID: 34018309 PMCID: PMC8366452 DOI: 10.1111/jcmm.16612] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 02/12/2021] [Accepted: 04/28/2021] [Indexed: 02/05/2023] Open
Abstract
PGC-1α/FNDC5/BDNF has found to be a critical pathway in neurodegeneration. MicroRNAs (miR(NA)s) are non-coding regulatory RNAs whose dysregulation has been observed in multiple neurological disorders, and miRNA-mediated gene deregulation plays a decisive role in PD. Here, candidate miRNA was chosen based on the literature survey and in silico studies. Chronic and acute models of PD were created using MPP+-treated SH-SY5Y cells. Twenty PD patients and 20 healthy volunteers were recruited. RT-qPCR was performed to assess the expression of miRNA and genes. Severe mitochondrial dysfunction induced by acute MPP+ treatment instigated compensatory mechanisms through enhancing expression of PGC-1α/FNDC5/BDNF pathway genes, while chronic MPP+ toxicity led to down-regulated levels of the genes in SH-SY5Y cells. PD peripheral blood mononuclear cells (PBMCs) also showed decreased expression of target genes. There were significant changes in the level of miR-193b in both models, as well as PD PBMCs. Moreover, miR-193b overexpression significantly affected PGC-1α, FNDC5 and TFAM levels. Interestingly, down-regulations of PGC-1α, FNDC5, BDNF and TFAM were inversely correlated with miR-193b up-regulation in PD PBMCs. This study showed the deregulation of PGC-1α/FNDC5/BDNF pathway in PD models and PBMCs, verifying its importance in neurodegeneration. Our findings also revealed that miR-193b functions in PD development, possibly through regulating PGC-1α/FNDC5/BDNF pathway, suggesting miR-193b as a potential biomarker for PD diagnosis.
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Affiliation(s)
- Masoud Baghi
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
- Department of Animal BiotechnologyCell Science Research CenterRoyan Institute for BiotechnologyACECRIsfahanIran
| | - Elaheh Yadegari
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
| | - Mahsa Rostamian Delavar
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
| | - Maryam Peymani
- Department of BiologyFaculty of Basic SciencesShahrekord BranchIslamic Azad UniversityShahrekordIran
| | | | - Mehri Salari
- Functional Neurosurgery Research CenterShohada Tajrish Neurosurgical Center of ExcellenceShahid Beheshti University of Medical SciencesTehranIran
| | | | - Timothy L. Megraw
- Department of Biomedical SciencesFlorida State UniversityCollege of MedicineTallahasseeFLUSA
| | - Kamran Ghaedi
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
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Evaluation of the prevention and treatment effects of acupuncture-moxibustion for Alzheimer disease based on various mouse models. JOURNAL OF ACUPUNCTURE AND TUINA SCIENCE 2021. [DOI: 10.1007/s11726-021-1239-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Wang J, Zheng B, Yang S, Zhou D, Wang J. Olmesartan Prevents Oligomerized Amyloid β (Aβ)-Induced Cellular Senescence in Neuronal Cells. ACS Chem Neurosci 2021; 12:1162-1169. [PMID: 33710861 DOI: 10.1021/acschemneuro.0c00775] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease with high morbidity. The deposition of oligomerized amyloid β (Aβ) is the pathological feature of AD. The Aβ-caused neuronal oxidative stress and cellular senescence play an important role in the development and progression of AD. Olmesartan is a novel angiotensin receptor blocker with promising antihypertensive properties and has recently been reported to exert anti-inflammatory and antioxidative stress effects. Blood pressure control using Angiotensin receptor blockers has shown multiple benefits in Alzheimer's disease models. In the present study, the effect of Olmesartan on oligomerized amyloid β (Aβ)-induced cellular senescence was investigated in cultured M17 neuronal cells. Our results show that Olmesartan treatment significantly ameliorates oligomerized Aβ-elevated ROS and MDA levels, as well as the induced senescent cells number. At the molecular level, Olmesartan inhibits the elevated expression of senescence biomarkers (p16 and p21). Furthermore, Olmesartan potently reversed the increased K382 acetylation of p53 and the downregulation of SIRT1. Moreover, we show that the effect of Olmesartan against cell senescence and deacetylation of p53 was abolished by inhibition of SIRT1, either by using nicotinamide or by transfection with SIRT1 siRNA. In conclusion, Olmesartan prevents oligomerized Aβ-induced cellular senescence in neuronal cells by downregulating p16 and p21 through a SIRT1 dependent deacetylation of p53; our finding indicates that Olmesartan has a protective effect in Aβ-induced neurotoxicity.
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Affiliation(s)
- Jian Wang
- Department of Neurology, Ya’an Peoples Hospital, Ya’an, Sichuan 625000, China
| | - Bo Zheng
- Department of Neurology, Ya’an Peoples Hospital, Ya’an, Sichuan 625000, China
| | - Shu Yang
- Department of Neurology, The Affiliated Hospital of University of Electronic Science and Technology, Sichuan Provincial People’s Hospital, Chengdu, Sichuan 610000, China
| | - Duoqiang Zhou
- Department of Neurology, Hospital of Traditional Chinese Medicine, Qiannan Bouyei and Miao Autonomous Prefecture, Duyun, Guizhou 558000, China
| | - Jianhong Wang
- Department of Neurology, The Affiliated Hospital of University of Electronic Science and Technology, Sichuan Provincial People’s Hospital, Chengdu, Sichuan 610000, China
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Moraghebi M, Maleki R, Ahmadi M, Negahi AA, Abbasi H, Mousavi P. In silico Analysis of Polymorphisms in microRNAs Deregulated in Alzheimer Disease. Front Neurosci 2021; 15:631852. [PMID: 33841080 PMCID: PMC8024493 DOI: 10.3389/fnins.2021.631852] [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: 12/11/2020] [Accepted: 02/18/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a degenerative condition characterized by progressive cognitive impairment and dementia. Findings have revolutionized current knowledge of miRNA in the neurological conditions. Two regulatory mechanisms determine the level of mature miRNA expression; one is miRNA precursor processing, and the other is gene expression regulation by transcription factors. This study is allocated to the in-silico investigation of miRNA's SNPs and their effect on other cell mechanisms. METHODS We used databases which annotate the functional effect of SNPs on mRNA-miRNA and miRNA-RBP interaction. Also, we investigated SNPs which are located on the promoter or UTR region. RESULTS miRNA SNP3.0 database indicated several SNPs in miR-339 and miR-34a in the upstream and downstream of pre-miRNA and mature miRNAs. While, for some miRNAs miR-124, and miR-125, no polymorphism was observed, and also miR-101 with ΔG -3.1 and mir-328 with ΔG 5.8 had the highest and lowest potencies to produce mature microRNA. SNP2TFBS web-server presented several SNPs which altered the Transcription Factor Binding Sites (TFBS) or generated novel TFBS in the promoter regions of related miRNA. At last, RBP-Var database provided a list of SNPs which alter miRNA-RBP interaction pattern and can also influence other miRNAs' expression. DISCUSSION The results indicated that SNPs microRNA affects both miRNA function and miRNA expression. Our study expands molecular insight into how SNPs in different parts of miRNA, including the regulatory (promoter), the precursor (pre-miRNA), functional regions (seed region of mature miRNA), and RBP-binding motifs, which theoretically may be correlated to the Alzheimer's disease.
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Affiliation(s)
- Mahta Moraghebi
- Student Research Committee, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Reza Maleki
- Student Research Committee, Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Ahmadi
- Student Research Committee, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Ahmad Agha Negahi
- Department of Internal Medicine, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Hossein Abbasi
- Student Research Committee, Faculty of Para-Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Pegah Mousavi
- Department of Medical Genetics, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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RNA and Oxidative Stress in Alzheimer's Disease: Focus on microRNAs. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2638130. [PMID: 33312335 PMCID: PMC7721489 DOI: 10.1155/2020/2638130] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/21/2020] [Accepted: 10/29/2020] [Indexed: 01/31/2023]
Abstract
Oxidative stress (OS) is one of the major pathomechanisms of Alzheimer's disease (AD), which is closely associated with other key events in neurodegeneration such as mitochondrial dysfunction, inflammation, metal dysregulation, and protein misfolding. Oxidized RNAs are identified in brains of AD patients at the prodromal stage. Indeed, oxidized mRNA, rRNA, and tRNA lead to retarded or aberrant protein synthesis. OS interferes with not only these translational machineries but also regulatory mechanisms of noncoding RNAs, especially microRNAs (miRNAs). MiRNAs can be oxidized, which causes misrecognizing target mRNAs. Moreover, OS affects the expression of multiple miRNAs, and conversely, miRNAs regulate many genes involved in the OS response. Intriguingly, several miRNAs embedded in upstream regulators or downstream targets of OS are involved also in neurodegenerative pathways in AD. Specifically, seven upregulated miRNAs (miR-125b, miR-146a, miR-200c, miR-26b, miR-30e, miR-34a, miR-34c) and three downregulated miRNAs (miR-107, miR-210, miR-485), all of which are associated with OS, are found in vulnerable brain regions of AD at the prodromal stage. Growing evidence suggests that altered miRNAs may serve as targets for developing diagnostic or therapeutic tools for early-stage AD. Focusing on a neuroprotective transcriptional repressor, REST, and the concept of hormesis that are relevant to the OS response may provide clues to help us understand the role of the miRNA system in cellular and organismal adaptive mechanisms to OS.
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Gámez-Valero A, Guisado-Corcoll A, Herrero-Lorenzo M, Solaguren-Beascoa M, Martí E. Non-Coding RNAs as Sensors of Oxidative Stress in Neurodegenerative Diseases. Antioxidants (Basel) 2020; 9:E1095. [PMID: 33171576 PMCID: PMC7695195 DOI: 10.3390/antiox9111095] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/03/2020] [Accepted: 11/06/2020] [Indexed: 12/11/2022] Open
Abstract
Oxidative stress (OS) results from an imbalance between the production of reactive oxygen species and the cellular antioxidant capacity. OS plays a central role in neurodegenerative diseases, where the progressive accumulation of reactive oxygen species induces mitochondrial dysfunction, protein aggregation and inflammation. Regulatory non-protein-coding RNAs (ncRNAs) are essential transcriptional and post-transcriptional gene expression controllers, showing a highly regulated expression in space (cell types), time (developmental and ageing processes) and response to specific stimuli. These dynamic changes shape signaling pathways that are critical for the developmental processes of the nervous system and brain cell homeostasis. Diverse classes of ncRNAs have been involved in the cell response to OS and have been targeted in therapeutic designs. The perturbed expression of ncRNAs has been shown in human neurodegenerative diseases, with these changes contributing to pathogenic mechanisms, including OS and associated toxicity. In the present review, we summarize existing literature linking OS, neurodegeneration and ncRNA function. We provide evidences for the central role of OS in age-related neurodegenerative conditions, recapitulating the main types of regulatory ncRNAs with roles in the normal function of the nervous system and summarizing up-to-date information on ncRNA deregulation with a direct impact on OS associated with major neurodegenerative conditions.
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Affiliation(s)
- Ana Gámez-Valero
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut de Neurociències, Universitat de Barcelona, C/Casanova 143, 08036 Barcelona, Spain; (A.G.-V.); (A.G.-C.); (M.H.-L.); (M.S.-B.)
| | - Anna Guisado-Corcoll
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut de Neurociències, Universitat de Barcelona, C/Casanova 143, 08036 Barcelona, Spain; (A.G.-V.); (A.G.-C.); (M.H.-L.); (M.S.-B.)
| | - Marina Herrero-Lorenzo
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut de Neurociències, Universitat de Barcelona, C/Casanova 143, 08036 Barcelona, Spain; (A.G.-V.); (A.G.-C.); (M.H.-L.); (M.S.-B.)
| | - Maria Solaguren-Beascoa
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut de Neurociències, Universitat de Barcelona, C/Casanova 143, 08036 Barcelona, Spain; (A.G.-V.); (A.G.-C.); (M.H.-L.); (M.S.-B.)
| | - Eulàlia Martí
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut de Neurociències, Universitat de Barcelona, C/Casanova 143, 08036 Barcelona, Spain; (A.G.-V.); (A.G.-C.); (M.H.-L.); (M.S.-B.)
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Ministerio de Ciencia Innovación y Universidades, 28046 Madrid, Spain
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MicroRNAs Dysregulation and Mitochondrial Dysfunction in Neurodegenerative Diseases. Int J Mol Sci 2020; 21:ijms21175986. [PMID: 32825273 PMCID: PMC7504116 DOI: 10.3390/ijms21175986] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/12/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023] Open
Abstract
Neurodegenerative diseases are debilitating and currently incurable conditions causing severe cognitive and motor impairments, defined by the progressive deterioration of neuronal structure and function, eventually causing neuronal loss. Understand the molecular and cellular mechanisms underlying these disorders are essential to develop therapeutic approaches. MicroRNAs (miRNAs) are short non-coding RNAs implicated in gene expression regulation at the post-transcriptional level. Moreover, miRNAs are crucial for different processes, including cell growth, signal transmission, apoptosis, cancer and aging-related neurodegenerative diseases. Altered miRNAs levels have been associated with the formation of reactive oxygen species (ROS) and mitochondrial dysfunction. Mitochondrial dysfunction and ROS formation occur in many neurodegenerative diseases such as Alzheimer's, Parkinson's and Huntington's diseases. The crosstalk existing among oxidative stress, mitochondrial dysfunction and miRNAs dysregulation plays a pivotal role in the onset and progression of neurodegenerative diseases. Based on this evidence, in this review, with a focus on miRNAs and their role in mitochondrial dysfunction in aging-related neurodegenerative diseases, with a focus on their potential as diagnostic biomarkers and therapeutic targets.
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Improta-Caria AC, Nonaka CKV, Cavalcante BRR, De Sousa RAL, Aras Júnior R, Souza BSDF. Modulation of MicroRNAs as a Potential Molecular Mechanism Involved in the Beneficial Actions of Physical Exercise in Alzheimer Disease. Int J Mol Sci 2020; 21:E4977. [PMID: 32674523 PMCID: PMC7403962 DOI: 10.3390/ijms21144977] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/23/2020] [Accepted: 06/23/2020] [Indexed: 12/18/2022] Open
Abstract
Alzheimer disease (AD) is one of the most common neurodegenerative diseases, affecting middle-aged and elderly individuals worldwide. AD pathophysiology involves the accumulation of beta-amyloid plaques and neurofibrillary tangles in the brain, along with chronic neuroinflammation and neurodegeneration. Physical exercise (PE) is a beneficial non-pharmacological strategy and has been described as an ally to combat cognitive decline in individuals with AD. However, the molecular mechanisms that govern the beneficial adaptations induced by PE in AD are not fully elucidated. MicroRNAs are small non-coding RNAs involved in the post-transcriptional regulation of gene expression, inhibiting or degrading their target mRNAs. MicroRNAs are involved in physiological processes that govern normal brain function and deregulated microRNA profiles are associated with the development and progression of AD. It is also known that PE changes microRNA expression profile in the circulation and in target tissues and organs. Thus, this review aimed to identify the role of deregulated microRNAs in the pathophysiology of AD and explore the possible role of the modulation of microRNAs as a molecular mechanism involved in the beneficial actions of PE in AD.
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Affiliation(s)
- Alex Cleber Improta-Caria
- Post-Graduate Program in Medicine and Health, Faculty of Medicine, Federal University of Bahia, Bahia 40110-909, Brazil; (A.C.I.-C.); (R.A.J.)
- University Hospital Professor Edgard Santos, Bahia 40110-909, Brazil
- Center for Biotechnology and Cell Therapy, São Rafael Hospital, Bahia 40110-909, Brazil; (C.K.V.N.); (B.R.R.C.)
| | - Carolina Kymie Vasques Nonaka
- Center for Biotechnology and Cell Therapy, São Rafael Hospital, Bahia 40110-909, Brazil; (C.K.V.N.); (B.R.R.C.)
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro 20000-000, Brazil
| | - Bruno Raphael Ribeiro Cavalcante
- Center for Biotechnology and Cell Therapy, São Rafael Hospital, Bahia 40110-909, Brazil; (C.K.V.N.); (B.R.R.C.)
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro 20000-000, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Bahia 40110-909, Brazil
| | - Ricardo Augusto Leoni De Sousa
- Physiological Science Multicentric Program, Federal University of Valleys´ Jequitinhonha and Mucuri, Minas Gerais 30000-000, Brazil;
| | - Roque Aras Júnior
- Post-Graduate Program in Medicine and Health, Faculty of Medicine, Federal University of Bahia, Bahia 40110-909, Brazil; (A.C.I.-C.); (R.A.J.)
- University Hospital Professor Edgard Santos, Bahia 40110-909, Brazil
| | - Bruno Solano de Freitas Souza
- Center for Biotechnology and Cell Therapy, São Rafael Hospital, Bahia 40110-909, Brazil; (C.K.V.N.); (B.R.R.C.)
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro 20000-000, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Bahia 40110-909, Brazil
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Shi Z, Zhang K, Zhou H, Jiang L, Xie B, Wang R, Xia W, Yin Y, Gao Z, Cui D, Zhang R, Xu S. Increased miR-34c mediates synaptic deficits by targeting synaptotagmin 1 through ROS-JNK-p53 pathway in Alzheimer's Disease. Aging Cell 2020; 19:e13125. [PMID: 32092796 PMCID: PMC7059146 DOI: 10.1111/acel.13125] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease (AD) and cancer have inverse relationship in many aspects. Some tumor suppressors, including miR‐34c, are decreased in cancer but increased in AD. The upstream regulatory pathways and the downstream mechanisms of miR‐34c in AD remain to be investigated. The expression of miR‐34c was detected by RT–qPCR in oxidative stressed neurons, hippocampus of SAMP8 mice, or serum of patients with amnestic mild cognitive impairment (aMCI). Dual luciferase assay was performed to confirm the binding sites of miR‐34c in its target mRNA. The Morris water maze (MWM) was used to evaluate learning and memory in SAMP8 mice administrated with miR‐34c antagomir (AM34c). Golgi staining was used to evaluate the synaptic function and structure. The dramatically increased miR‐34c was mediated by ROS‐JNK‐p53 pathway and negatively regulated synaptotagmin 1 (SYT1) expression by targeting the 3′‐untranslated region (3′‐UTR) of syt1 in AD. The expression of SYT1 protein was reduced by over expression of miR‐34c in the HT‐22 cells and vice versa. Administration of AM34c by the third ventricle injection or intranasal delivery markedly increased the brain levels of SYT1 and ameliorated the cognitive function in SAMP8 mice. The serum miR‐34c was significantly increased in patients with aMCI and might be a predictive biomarker for diagnosis of aMCI. These results indicated that increased miR‐34c mediated synaptic and memory deficits by targeting SYT1 through ROS‐JNK‐p53 pathway and the miR‐34c/SYT1 pathway could be considered as a promising novel therapeutic target for patients with AD.
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Affiliation(s)
- Zhongli Shi
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Kaixia Zhang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Huimin Zhou
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Lei Jiang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Bing Xie
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Ruiyuan Wang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Wenzhen Xia
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Yajuan Yin
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Zhaoyu Gao
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Dongsheng Cui
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Rui Zhang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Shunjiang Xu
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
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Konovalova J, Gerasymchuk D, Parkkinen I, Chmielarz P, Domanskyi A. Interplay between MicroRNAs and Oxidative Stress in Neurodegenerative Diseases. Int J Mol Sci 2019; 20:ijms20236055. [PMID: 31801298 PMCID: PMC6929013 DOI: 10.3390/ijms20236055] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/23/2019] [Accepted: 11/28/2019] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs are post-transcriptional regulators of gene expression, crucial for neuronal differentiation, survival, and activity. Age-related dysregulation of microRNA biogenesis increases neuronal vulnerability to cellular stress and may contribute to the development and progression of neurodegenerative diseases. All major neurodegenerative disorders are also associated with oxidative stress, which is widely recognized as a potential target for protective therapies. Albeit often considered separately, microRNA networks and oxidative stress are inextricably entwined in neurodegenerative processes. Oxidative stress affects expression levels of multiple microRNAs and, conversely, microRNAs regulate many genes involved in an oxidative stress response. Both oxidative stress and microRNA regulatory networks also influence other processes linked to neurodegeneration, such as mitochondrial dysfunction, deregulation of proteostasis, and increased neuroinflammation, which ultimately lead to neuronal death. Modulating the levels of a relatively small number of microRNAs may therefore alleviate pathological oxidative damage and have neuroprotective activity. Here, we review the role of individual microRNAs in oxidative stress and related pathways in four neurodegenerative conditions: Alzheimer’s (AD), Parkinson’s (PD), Huntington’s (HD) disease, and amyotrophic lateral sclerosis (ALS). We also discuss the problems associated with the use of oversimplified cellular models and highlight perspectives of studying microRNA regulation and oxidative stress in human stem cell-derived neurons.
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Affiliation(s)
- Julia Konovalova
- Institute of Biotechnology, HiLIFE, University of Helsinki, 00014 Helsinki, Finland; (J.K.); (D.G.); (I.P.)
| | - Dmytro Gerasymchuk
- Institute of Biotechnology, HiLIFE, University of Helsinki, 00014 Helsinki, Finland; (J.K.); (D.G.); (I.P.)
- Institute of Molecular Biology and Genetics, NASU, Kyiv 03143, Ukraine
| | - Ilmari Parkkinen
- Institute of Biotechnology, HiLIFE, University of Helsinki, 00014 Helsinki, Finland; (J.K.); (D.G.); (I.P.)
| | - Piotr Chmielarz
- Department of Brain Biochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Krakow, Poland
| | - Andrii Domanskyi
- Institute of Biotechnology, HiLIFE, University of Helsinki, 00014 Helsinki, Finland; (J.K.); (D.G.); (I.P.)
- Correspondence: ; Tel.: +358-50-448-4545
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Yang J, Long Y, Xu DM, Zhu BL, Deng XJ, Yan Z, Sun F, Chen GJ. Age- and Nicotine-Associated Gene Expression Changes in the Hippocampus of APP/PS1 Mice. J Mol Neurosci 2019; 69:608-622. [PMID: 31399937 DOI: 10.1007/s12031-019-01389-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 07/18/2019] [Indexed: 12/17/2022]
Abstract
The etiology of Alzheimer's disease (AD) has been intensively studied. However, little is known about the molecular alterations in early-stage and late-stage AD. Hence, we performed RNA sequencing and assessed differentially expressed genes (DEGs) in the hippocampus of 18-month and 7-month-old APP/PS1 mice. Moreover, the DEGs induced by treatment with nicotine, the nicotinic acetylcholine receptor agonist that is known to improve cognition in AD, were also analyzed in old and young APP/PS1 mice. When comparing old APP/PS1 mice with their younger littermates, we found an upregulation in genes associated with calcium overload, immune response, cancer, and synaptic function; the transcripts of 14 calcium ion channel subtypes were significantly increased in aged mice. In contrast, the downregulated genes in aged mice were associated with ribosomal components, mitochondrial respiratory chain complex, and metabolism. Through comparison with DEGs in normal aging from previous reports, we found that changes in calcium channel genes remained one of the prominent features in aged APP/PS1 mice. Nicotine treatment also induced changes in gene expression. Indeed, nicotine augmented glycerolipid metabolism, but inhibited PI3K and MAPK signaling in young mice. In contrast, nicotine affected genes associated with cell senescence and death in old mice. Our study suggests a potential network connection between calcium overload and cellular signaling, in which additional nicotinic activation might not be beneficial in late-stage AD.
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Affiliation(s)
- Jie Yang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing, 400016, China
| | - Yan Long
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing, 400016, China
| | - De-Mei Xu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing, 400016, China
| | - Bing-Lin Zhu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing, 400016, China
| | - Xiao-Juan Deng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing, 400016, China
| | - Zhen Yan
- Department of Physiology and Biophysics, State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Fei Sun
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Guo-Jun Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing, 400016, China.
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Ma F, Liu Z, Huang J, Kang Y, Wang J. Evaluation of reference genes for quantitative real-time PCR analysis of messenger RNAs and microRNAs in rainbow trout Oncorhynchus mykiss under heat stress. JOURNAL OF FISH BIOLOGY 2019; 95:540-554. [PMID: 30993691 DOI: 10.1111/jfb.13986] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
We assessed the expression stability of several messenger (m)RNAs and micro (mi)RNAs from liver and head kidney of rainbow trout Oncorhynchus mykiss using high-throughput RNA sequencing (RNA-seq) and miRNA-seq data. Additionally, four commonly used reference genes and one small non-coding RNA (u6) were also selected to identify ideal reference mRNAs and miRNAs for quantitative real-time (qrt)-PCR analysis of heat stress responses. GeNorm, NormFinder, BestKeeper and comparative ΔCt were employed for analysis of qrt-PCR data to systematically assess the expression stability of candidate mRNAs and miRNAs and stability was ranked using geometric means. β-actin and ef1-α were the most stably expressed reference mRNAs in liver and head kidney, respectively and ssa-mir-26a-5p and ssa-mir-462b-5p were the most stably expressed miRNAs in these tissues. This is the first identification of appropriate reference mRNAs and miRNAs for qrt-PCR analysis of O. mykiss under heat stress.
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Affiliation(s)
- Fang Ma
- College of Animal Science and Technology, Gansu Agricultural University, No. 1 Yingmencun, Anning District, Lanzhou, Gansu, China
| | - Zhe Liu
- College of Animal Science and Technology, Gansu Agricultural University, No. 1 Yingmencun, Anning District, Lanzhou, Gansu, China
| | - Jinqiang Huang
- College of Animal Science and Technology, Gansu Agricultural University, No. 1 Yingmencun, Anning District, Lanzhou, Gansu, China
| | - Yujun Kang
- College of Animal Science and Technology, Gansu Agricultural University, No. 1 Yingmencun, Anning District, Lanzhou, Gansu, China
| | - Jianfu Wang
- College of Animal Science and Technology, Gansu Agricultural University, No. 1 Yingmencun, Anning District, Lanzhou, Gansu, China
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Amakiri N, Kubosumi A, Tran J, Reddy PH. Amyloid Beta and MicroRNAs in Alzheimer's Disease. Front Neurosci 2019; 13:430. [PMID: 31130840 PMCID: PMC6510214 DOI: 10.3389/fnins.2019.00430] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/15/2019] [Indexed: 11/29/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive mental illness characterized by memory loss and multiple cognitive impairments. In the last several decades, significant progress has been made in understanding basic biology, molecular mechanisms, and development of biomarkers and therapeutic drugs. Multiple cellular changes are implicated in the disease process including amyloid beta and phosphorylation of tau synaptic damage and mitochondrial dysfunction in AD. Among these, amyloid beta is considered a major player in the disease process. Recent advancements in molecular biology revealed that microRNAs (miRNAs) are considered potential biomarkers in AD with a focus on amyloid beta. In this article we discussed several aspects of AD including its prevalence, classifications, risk factors, and amyloid species and their accumulation in subcellular compartments. This article also discusses the discovery and biogenesis of miRNAs and their relevance to AD. Today's research continues to add to the wealth of miRNA data that has been accumulated, however, there still lacks clear-cut understanding of the physiological relevance of miRNAs to AD. MiRNAs appear to regulate translation of gene products in AD and other human diseases. However, the mechanism of how many of these miRNAs regulate both the 5' and 3'UTR of amyloid precursor protein (APP) processing is still being extrapolated. Hence, we still need more research on miRNAs and APP/amyloid beta formation in the progression and pathogenesis of AD.
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Affiliation(s)
- Nnana Amakiri
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Aaron Kubosumi
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - James Tran
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - P. Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Speech-Language and Hearing Clinics, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Public Health, Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX, United States
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Baker JR, Vuppusetty C, Colley T, Hassibi S, Fenwick PS, Donnelly LE, Ito K, Barnes PJ. MicroRNA-570 is a novel regulator of cellular senescence and inflammaging. FASEB J 2019; 33:1605-1616. [PMID: 30156909 PMCID: PMC6338629 DOI: 10.1096/fj.201800965r] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/30/2018] [Indexed: 12/20/2022]
Abstract
Diseases of accelerated aging often occur together (multimorbidity), and their prevalence is increasing, with high societal and health care costs. Chronic obstructive pulmonary disease (COPD) is one such condition, in which one half of patients exhibit ≥4 age-related diseases. Diseases of accelerated aging share common molecular pathways, which lead to the detrimental accumulation of senescent cells. These senescent cells no longer divide but release multiple inflammatory proteins, known as the senescence-associated secretory phenotype, which may perpetuate and speed disease. Here, we show that inhibiting miR-570-3p, which is increased in COPD cells, reverses cellular senescence by restoring the antiaging molecule sirtuin-1. MiR-570-3p is induced by oxidative stress in airway epithelial cells through p38 MAP kinase-c-Jun signaling and drives senescence by inhibiting sirtuin-1. Inhibition of elevated miR-570-3p in COPD small airway epithelial cells, using an antagomir, restores sirtuin-1 and suppresses markers of cellular senescence (p16INK4a, p21Waf1, and p27Kip1), thereby restoring cellular growth by allowing progression through the cell cycle. MiR-570-3p inhibition also suppresses the senescence-associated secretory phenotype (matrix metalloproteinases-2/9, C-X-C motif chemokine ligand 8, IL-1β, and IL-6). Collectively, these data suggest that inhibiting miR-570-3p rejuvenates cells via restoration of sirtuin-1, reducing many of the abnormalities associated with cellular senescence.-Baker, J. R., Vuppusetty, C., Colley, T., Hassibi, S., Fenwick, P. S., Donnelly, L. E., Ito, K., Barnes, P. J. MicroRNA-570 is a novel regulator of cellular senescence and inflammaging.
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Affiliation(s)
- Jonathan R. Baker
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Chaitanya Vuppusetty
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Thomas Colley
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Shyreen Hassibi
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Peter S. Fenwick
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Louise E. Donnelly
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Kazuhiro Ito
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Peter J. Barnes
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
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37
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Fan B, Luk AOY, Chan JCN, Ma RCW. MicroRNA and Diabetic Complications: A Clinical Perspective. Antioxid Redox Signal 2018; 29:1041-1063. [PMID: 28950710 DOI: 10.1089/ars.2017.7318] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE The rising global prevalence of diabetes and its debilitating complications give rise to significant disability and premature mortality. Due to the silent nature of diabetes and its vascular complications, and limitations in current methods for detection, there is a need for novel biomarkers for early detection and prognosis. Recent Advances: Metabolic memory and epigenetic factors are important in the pathogenesis of diabetic complications and interact with genetic variants, metabolic factors, and clinical risk factors. Micro(mi)RNAs interact with epigenetic mechanisms and pleiotropically mediate the effects of hyperglycemia on the vasculature. Utilizing mature profiling techniques and platforms, an increasing number of miRNA signatures and interaction networks have been identified for diabetes and its related cardiorenal complications. As a result, these short, single-stranded molecules are emerging as potential diagnostic and predictive tools in human studies, and may function as disease biomarkers, as well as treatment targets. CRITICAL ISSUES However, there is complex interaction between the genome and epigenome. The regulation of miRNAs may differ across species and tissues. Most profiling studies to date lack validation, often requiring large, well-characterized cohorts and reliable normalization strategies. Furthermore, the incremental benefits of miRNAs as biomarkers, beyond prediction provided by traditional risk factors, are critical issues to consider, yet often neglected in published studies. FUTURE DIRECTIONS All in all, the future for miRNA-based diagnostics and therapeutics for diabetic complications appears promising. Improved understanding of the complex mechanisms underlying miRNA dysregulation, and more well-designed studies utilizing prospective samples would facilitate the translation to clinical use.
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Affiliation(s)
- Baoqi Fan
- 1 Department of Medicine and Therapeutics, The Chinese University of Hong Kong , Shatin, China
| | - Andrea On Yan Luk
- 1 Department of Medicine and Therapeutics, The Chinese University of Hong Kong , Shatin, China .,2 Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong , Shatin, China
| | - Juliana Chung Ngor Chan
- 1 Department of Medicine and Therapeutics, The Chinese University of Hong Kong , Shatin, China .,2 Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong , Shatin, China .,3 Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong , Prince of Wales Hospital, Shatin, China .,4 The Chinese University of Hong Kong-Shanghai Jiao Tong University Joint Research Centre in Diabetes Genomics and Precision Medicine , Shatin, China
| | - Ronald Ching Wan Ma
- 1 Department of Medicine and Therapeutics, The Chinese University of Hong Kong , Shatin, China .,2 Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong , Shatin, China .,3 Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong , Prince of Wales Hospital, Shatin, China .,4 The Chinese University of Hong Kong-Shanghai Jiao Tong University Joint Research Centre in Diabetes Genomics and Precision Medicine , Shatin, China
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Abstract
SIGNIFICANCE RNA is a heterogeneous class of molecules with the minority being protein coding. Noncoding RNAs (ncRNAs) are involved in translation and epigenetic control mechanisms of gene expression. Recent Advances: In recent years, the number of identified ncRNAs has dramatically increased and it is now clear that ncRNAs provide a complex layer of differential gene expression control. CRITICAL ISSUES NcRNAs exhibit interplay with redox regulation. Redox regulation alters the expression of ncRNAs; conversely, ncRNAs alter the expression of generator and effector systems of redox regulation in a complex manner, which will be the focus of this review article. FUTURE DIRECTIONS Understanding the role of ncRNA in redox control will lead to the development of new strategies to alter redox programs. Given that many ncRNAs (particularly microRNAs [miRNAs]) change large gene sets, these molecules are attractive drug candidates; already, now miRNAs can be targeted in patients. Therefore, the development of ncRNA therapies focusing on these molecules is an attractive future strategy. Antioxid. Redox Signal. 29, 793-812.
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Affiliation(s)
- Matthias S Leisegang
- 1 Institute for Cardiovascular Physiology, Goethe-University , Frankfurt, Germany .,2 German Center of Cardiovascular Research (DZHK) , Partner Site RheinMain, Frankfurt, Germany
| | - Katrin Schröder
- 1 Institute for Cardiovascular Physiology, Goethe-University , Frankfurt, Germany .,2 German Center of Cardiovascular Research (DZHK) , Partner Site RheinMain, Frankfurt, Germany
| | - Ralf P Brandes
- 1 Institute for Cardiovascular Physiology, Goethe-University , Frankfurt, Germany .,2 German Center of Cardiovascular Research (DZHK) , Partner Site RheinMain, Frankfurt, Germany
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Liu NN, Dong ZL, Han LL. MicroRNA-410 inhibition of the TIMP2-dependent MAPK pathway confers neuroprotection against oxidative stress-induced apoptosis after ischemic stroke in mice. Brain Res Bull 2018; 143:45-57. [PMID: 30240841 DOI: 10.1016/j.brainresbull.2018.09.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/11/2018] [Accepted: 09/16/2018] [Indexed: 11/29/2022]
Abstract
Ischemic stroke (IS) is an acute cerebral event characterized by a high incidence rate, high disability rate as well as a high mortality. More recently, accumulative literature has provided evidence highlighting the role played by microRNAs (miRs) in the development of neurons. Hence, the aim of the present study was to investigate the neuroprotective role of miR-410 in IS. Microarray-based gene expression profiling of AMI was conducted in order to identify differentially expressed genes (DEGs) and the corresponding miRs regulating these genes. IS models were established to assess neurology on a scoring basis. Superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) activity and malondialdehyde (MDA) were all subsequently assessed. The functional role of miR-410 in IS was determined based on ectopic expression, knockdown and reporter assay experiments in hippocampal neurons. The expressions of microRNA-410, TIMP2, ERK, p38MAPK, JNK were all examined accordingly. The survival rate was assessed by MTT assay, and cell cycle and apoptosis by flow cytometry. After the loss of hippocampal neurons, infarct size as well as oxidative stress injury had been detected, microarray technology revealed that TIMP2 was differentially expressed in IS and that miR-410 regulated TIMP2. Initial observations revealed elevated levels of TIMP2 expression and MDA activity, in addition to evidence obtained indicated that the MAPK pathway had been activated along with decreased SOD, GSH-Px activity and miR-410 expression in IS mice. Ectopic expression of miR-410 was observed to inactivate the MAPK pathway, TIMP2 expression and hippocampal neuron apoptosis, while elevated hippocampal neuron survival rates and cell cycle entry were detected. Furthermore, TIMP2 as a direct target gene of miR-410, was determined to be negatively regulated by miR-410, while the MAPK pathway was found to be inhibited following TIMP2 knockdown. Our results revealed that the overexpression of miR-410 could ameliorate hippocampal neuron loss, reduce infarct size and oxidative stress injury in IS mice. Taken together, the key evidence of the current study elucidated the distinct nature of the inhibitory effect on IS as a result of overexpressed miR-410 whereby the conferral of neuroprotection was observed in oxidative stress-induced apoptosis post IS through the TIMP2-dependent repression of the MAPK pathway in mice.
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Affiliation(s)
- Ning-Ning Liu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061000, PR China.
| | - Zhi-Ling Dong
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061000, PR China
| | - Li-Li Han
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061000, PR China
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Zhang J, Liu Y, Lu L. Emerging role of MicroRNAs in peripheral nerve system. Life Sci 2018; 207:227-233. [PMID: 29894714 DOI: 10.1016/j.lfs.2018.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/21/2018] [Accepted: 06/08/2018] [Indexed: 01/17/2023]
Abstract
Peripheral nerve injury is one of the most common clinical diseases. Although the regeneration of the peripheral nerve is better than that of the nerves of the central nervous system, because of its growth rate restrictions after damage. Hence, the outcome of repair after injury is not favorable. Small RNA, a type of non-coding RNA, has recently been gaining attention in neural injury. It is widely distributed in the nervous system in vivo and a significant change in the expression of small RNAs has been observed in a neural injury model. This suggests that MicroRNAs (miRNAs) may serve as a potential target for resolving the challenges of peripheral nerve repair. This review summarizes the current challenges in peripheral nerve injury repair, systematically expounds the mechanism of miRNAs in the process of nerve injury and repair and attempts to determine the possible treatment of peripheral nerve injury.
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Affiliation(s)
- Jiayi Zhang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Yang Liu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Laijin Lu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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Anderson-Hanley C, Barcelos NM, Zimmerman EA, Gillen RW, Dunnam M, Cohen BD, Yerokhin V, Miller KE, Hayes DJ, Arciero PJ, Maloney M, Kramer AF. The Aerobic and Cognitive Exercise Study (ACES) for Community-Dwelling Older Adults With or At-Risk for Mild Cognitive Impairment (MCI): Neuropsychological, Neurobiological and Neuroimaging Outcomes of a Randomized Clinical Trial. Front Aging Neurosci 2018; 10:76. [PMID: 29780318 PMCID: PMC5945889 DOI: 10.3389/fnagi.2018.00076] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 03/07/2018] [Indexed: 12/19/2022] Open
Abstract
Prior research has found that cognitive benefits of physical exercise and brain health in older adults may be enhanced when mental exercise is interactive simultaneously, as in exergaming. It is unclear whether the cognitive benefit can be maximized by increasing the degree of mental challenge during exercise. This randomized clinical trial (RCT), the Aerobic and Cognitive Exercise Study (ACES) sought to replicate and extend prior findings of added cognitive benefit from exergaming to those with or at risk for mild cognitive impairment (MCI). ACES compares the effects of 6 months of an exer-tour (virtual reality bike rides) with the effects of a more effortful exer-score (pedaling through a videogame to score points). Fourteen community-dwelling older adults meeting screening criteria for MCI (sMCI) were adherent to their assigned exercise for 6 months. The primary outcome was executive function, while secondary outcomes included memory and everyday cognitive function. Exer-tour and exer-score yielded significant moderate effects on executive function (Stroop A/C; d's = 0.51 and 0.47); there was no significant interaction effect. However, after 3 months the exer-tour revealed a significant and moderate effect, while exer-score showed little impact, as did a game-only condition. Both exer-tour and exer-score conditions also resulted in significant improvements in verbal memory. Effects appear to generalize to self-reported everyday cognitive function. Pilot data, including salivary biomarkers and structural MRI, were gathered at baseline and 6 months; exercise dose was associated with increased BDNF as well as increased gray matter volume in the PFC and ACC. Improvement in memory was associated with an increase in the DLPFC. Improved executive function was associated with increased expression of exosomal miRNA-9. Interactive physical and cognitive exercise (both high and low mental challenge) yielded similarly significant cognitive benefit for adherent sMCI exercisers over 6 months. A larger RCT is needed to confirm these findings. Further innovation and clinical trial data are needed to develop accessible, yet engaging and effective interventions to combat cognitive decline for the growing MCI population. ClinicalTrials.gov ID: NCT02237560
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Affiliation(s)
- Cay Anderson-Hanley
- The Healthy Aging and Neuropsychology Lab, Union College, Schenectady, NY, United States
| | - Nicole M Barcelos
- The Healthy Aging and Neuropsychology Lab, Union College, Schenectady, NY, United States
| | - Earl A Zimmerman
- Alzheimer's Disease Center, Albany Medical Center, Albany, NY, United States
| | - Robert W Gillen
- Sunnyview Rehabilitation Hospital, Schenectady, NY, United States
| | - Mina Dunnam
- Stratton VA Medical Center, Albany, NY, United States
| | - Brian D Cohen
- Department of Biology, Union College, Schenectady, NY, United States
| | - Vadim Yerokhin
- Biomedical Sciences Department, Oklahoma State University, Tulsa, OK, United States
| | - Kenneth E Miller
- Department of Anatomy and Cell Biology, Oklahoma State University, Tulsa, OK, United States
| | - David J Hayes
- The Healthy Aging and Neuropsychology Lab, Union College, Schenectady, NY, United States
| | - Paul J Arciero
- Department of Health & Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Molly Maloney
- The Healthy Aging and Neuropsychology Lab, Union College, Schenectady, NY, United States
| | - Arthur F Kramer
- Beckman Institute, University of Illinois, Urbana-Champaign, Champaign, IL, United States
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Xie B, Liu Z, Jiang L, Liu W, Song M, Zhang Q, Zhang R, Cui D, Wang X, Xu S. Increased Serum miR-206 Level Predicts Conversion from Amnestic Mild Cognitive Impairment to Alzheimer's Disease: A 5-Year Follow-up Study. J Alzheimers Dis 2018; 55:509-520. [PMID: 27662297 DOI: 10.3233/jad-160468] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Evidence suggests that individuals with amnestic mild cognitive impairment (aMCI) tend to progress to probable Alzheimer's disease (AD) with aging. This study was performed to examine whether circulating miRNAs could be potential predictors for the progression of aMCI to AD. A total of 458 patients with aMCI were included in this study, and the clinical data were collected at two time points: the baseline and the follow-up assessment. These aMCI patients were classified into two groups after 5 years: aMCI-stable group (n = 330) and AD-conversion group (n = 128). The expression of miR-206 and miR-132 and the levels of BDNF and SIRT1 in serum were detected using a quantitative real-time RT-PCR (qPCR) and the ELISA method, respectively. Kaplan-Meier method (Log-rank test) was used for univariate survival analysis. Cox proportional hazard model was used to estimate the prognostic value of miRNAs in conversion from aMCI to AD. At the baseline, serum levels of miR-206 in aMCI-AD group were significantly elevated compared to aMCI-aMCI group and the same trend was found at 5-year follow-up time point as well. There were no significant differences in serum levels of miR-132 between the conversion and non-conversion group at both time points. Kaplan-Meier analysis showed significant correlation between AD conversion and higher serum levels of miR-206 for aMCI patients (HR = 3.60, 95% CI: 2.51- 5.36, p < 0.001). Multivariate Cox regression analysis revealed that serum miR-206 and its target BDNF were significant independent predictors for AD conversion (HR = 4.22, p < 0.001). These results suggested that increased serum miR-206 level might be a potential predictor of conversion from aMCI to AD.
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Affiliation(s)
- Bing Xie
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Zanchao Liu
- Department of Endocrinology, The Second Hospital of Shijiazhuang City, Shijiazhuang, P.R. China
| | - Lei Jiang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Wei Liu
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Mei Song
- Department of Mental Health, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China.,Institute of Mental Health, Hebei Medical University, Shijiazhuang, P.R. China
| | - Qingfu Zhang
- Department of Burns and Plastic Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China.,Burn Engineering Center of Hebei Province, Shijiazhuang, P.R. China
| | - Rui Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Dongsheng Cui
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Xueyi Wang
- Department of Mental Health, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China.,Institute of Mental Health, Hebei Medical University, Shijiazhuang, P.R. China
| | - Shunjiang Xu
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
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43
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Xie B, Xu Y, Liu Z, Liu W, Jiang L, Zhang R, Cui D, Zhang Q, Xu S. Elevation of Peripheral BDNF Promoter Methylation Predicts Conversion from Amnestic Mild Cognitive Impairment to Alzheimer's Disease: A 5-Year Longitudinal Study. J Alzheimers Dis 2018; 56:391-401. [PMID: 27935556 DOI: 10.3233/jad-160954] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Epigenetic aberrations have been identified as biomarkers to predict the risk of Alzheimer's disease (AD). This study aimed to evaluate whether altered DNA methylation status of BDNF promoter could be used as potential epigenetic biomarkers for predicting the progression from amnestic mild cognitive impairment (aMCI) to AD. A total of 506 aMCI patients and 728 cognitively normal controls were recruited in the cross-sectional analyses. Patients (n = 458) from aMCI cohort were classified into two groups after 5-year follow-up: aMCI-stable group (n = 330) and AD-conversion group (n = 128). DNA methylation of BDNF promoter was detected by bisulfite-PCR amplification and pyrosequencing. The DNA methylation levels of CpG1 and CpG2 in promoter I and CpG5 and CpG6 in promoter IV of BDNF gene were significantly higher in the aMCI group than in the control group at baseline and also were increased in the conversion group compared with the non-conversion group at 5-year follow up time point. CpG5 in BDNF promoter IV had the highest AUC of 0.910 (95% CI: 0.817-0.983, p < 0.05). Kaplan-Meier analysis showed a significant AD conversion propensity for aMCI patients with high methylation levels of CpG5 (HR = 1.96, 95% CI: 1.07-2.98, p < 0.001). Multivariate Cox regression analysis revealed elevated methylation status of CpG5 was a significant independent predictor for AD conversion (HR = 3.51, p = 0.013). These results suggest that elevation of peripheral BDNF promoter methylation might be used as potential epigenetic biomarkers for predicting the conversion from aMCI to AD.
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Affiliation(s)
- Bing Xie
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yao Xu
- Division of Nephrology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Zanchao Liu
- Department of Endocrinology, The Second Hospital of Shijiazhuang City, Shijiazhuang, P.R. China
| | - Wenxuan Liu
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Shijiazhuang, P.R. China
| | - Lei Jiang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Rui Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Dongsheng Cui
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Qingfu Zhang
- Burn Engineering Center of Hebei Province, Shijiazhuang, P.R. China
| | - Shunjiang Xu
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
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Williams J, Smith F, Kumar S, Vijayan M, Reddy PH. Are microRNAs true sensors of ageing and cellular senescence? Ageing Res Rev 2017; 35:350-363. [PMID: 27903442 PMCID: PMC5357446 DOI: 10.1016/j.arr.2016.11.008] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/11/2016] [Accepted: 11/18/2016] [Indexed: 12/14/2022]
Abstract
All living beings are programmed to death due to aging and age-related processes. Aging is a normal process of every living species. While all cells are inevitably progressing towards death, many disease processes accelerate the aging process, leading to senescence. Pathologies such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, amyotrophic lateral sclerosis, Huntington's disease, cardiovascular disease, cancer, and skin diseases have been associated with deregulated aging. Healthy aging can delay onset of all age-related diseases. Genetics and epigenetics are reported to play large roles in accelerating and/or delaying the onset of age-related diseases. Cellular mechanisms of aging and age-related diseases are not completely understood. However, recent molecular biology discoveries have revealed that microRNAs (miRNAs) are potential sensors of aging and cellular senescence. Due to miRNAs capability to bind to the 3' untranslated region (UTR) of mRNA of specific genes, miRNAs can prevent the translation of specific genes. The purpose of our article is to highlight recent advancements in miRNAs and their involvement in cellular changes in aging and senescence. Our article discusses the current understanding of cellular senescence, its interplay with miRNAs regulation, and how they both contribute to disease processes.
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Affiliation(s)
- Justin Williams
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States
| | - Flint Smith
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States
| | - Subodh Kumar
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States
| | - Murali Vijayan
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States
| | - P Hemachandra Reddy
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States; Cell Biology & Biochemistry, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States; Neuroscience & Pharmacology Department, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States; Neurology Department, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States; Speech, Language and Hearing Sciences Departments, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, United States; Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, 6630 S. Quaker Suite E, MS 7495, Lubbock, TX 79413, United States.
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46
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Millan MJ. Linking deregulation of non-coding RNA to the core pathophysiology of Alzheimer's disease: An integrative review. Prog Neurobiol 2017; 156:1-68. [PMID: 28322921 DOI: 10.1016/j.pneurobio.2017.03.004] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 03/09/2017] [Accepted: 03/09/2017] [Indexed: 02/06/2023]
Abstract
The human genome encodes a vast repertoire of protein non-coding RNAs (ncRNA), some specific to the brain. MicroRNAs, which interfere with the translation of target mRNAs, are of particular interest since their deregulation has been implicated in neurodegenerative disorders like Alzheimer's disease (AD). However, it remains challenging to link the complex body of observations on miRNAs and AD into a coherent framework. Using extensive graphical support, this article discusses how a diverse panoply of miRNAs convergently and divergently impact (and are impacted by) core pathophysiological processes underlying AD: neuroinflammation and oxidative stress; aberrant generation of β-amyloid-42 (Aβ42); anomalies in the production, cleavage and post-translational marking of Tau; impaired clearance of Aβ42 and Tau; perturbation of axonal organisation; disruption of synaptic plasticity; endoplasmic reticulum stress and the unfolded protein response; mitochondrial dysfunction; aberrant induction of cell cycle re-entry; and apoptotic loss of neurons. Intriguingly, some classes of miRNA provoke these cellular anomalies, whereas others act in a counter-regulatory, protective mode. Moreover, changes in levels of certain species of miRNA are a consequence of the above-mentioned anomalies. In addition to miRNAs, circular RNAs, piRNAs, long non-coding RNAs and other types of ncRNA are being increasingly implicated in AD. Overall, a complex mesh of deregulated and multi-tasking ncRNAs reciprocally interacts with core pathophysiological mechanisms underlying AD. Alterations in ncRNAs can be detected in CSF and the circulation as well as the brain and are showing promise as biomarkers, with the ultimate goal clinical exploitation as targets for novel modes of symptomatic and course-altering therapy.
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Affiliation(s)
- Mark J Millan
- Centre for Therapeutic Innovation in Neuropsychiatry, institut de recherche Servier, 125 chemin de ronde, 78290 Croissy sur Seine, France.
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Prasad KN. Oxidative stress and pro-inflammatory cytokines may act as one of the signals for regulating microRNAs expression in Alzheimer’s disease. Mech Ageing Dev 2017; 162:63-71. [DOI: 10.1016/j.mad.2016.12.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 12/08/2016] [Accepted: 12/08/2016] [Indexed: 12/20/2022]
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48
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Reddy P, Williams J, Smith F, Bhatti J, Kumar S, Vijayan M, Kandimalla R, Kuruva C, Wang R, Manczak M, Yin X, Reddy A. MicroRNAs, Aging, Cellular Senescence, and Alzheimer's Disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2017; 146:127-171. [PMID: 28253983 DOI: 10.1016/bs.pmbts.2016.12.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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49
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Zhang R, Zhou H, Jiang L, Mao Y, Cui X, Xie B, Cui D, Wang H, Zhang Q, Xu S. MiR-195 dependent roles of mitofusin2 in the mitochondrial dysfunction of hippocampal neurons in SAMP8 mice. Brain Res 2016; 1652:135-143. [PMID: 27693395 DOI: 10.1016/j.brainres.2016.09.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 02/07/2023]
Abstract
Abnormal gene expression, including mRNAs, and microRNAs (miRNA), have been identified in the development of Alzheimer's disease (AD). Although mitofusin2 (mfn2) has been found to be down-regulated in the neurons from hippocampus and cortex in AD patients, little is known about its roles and the regulatory mechanisms in the pathogenesis of AD. This study was performed to investigate the roles of mfn2 protein and its upstream regulatory mechanism in the progression of AD using a senescence accelerated mouse prone-8 (SAMP8) model. The results of quantitative real-time PCR and western blot revealed that mfn2 expression displayed a consistent decrease with aging in the hippocampus of SAMP8 than did age-matched SAMR1 mice. The luciferase activity assay combined with mutational analysis confirmed the binding site of miR-195 to the 3' -untranslated region (3'-UTR) of mfn2 mRNA. Furthermore, miR-195 inhibitor or antigomir induced the higher level expression of mfn2 protein in vitro and in vivo. In addition, exogenous expression of miR-195 decreased the mitochondrial membrane potential (MMP) of the HT-22 cells by targeting mfn2. In conclusion, these results indicated that deregulation of mfn2 might be involved in mitochondrial dysfunction during the progression of AD, and its decreased expression was regulated at least in part by miR-195 in AD mice. The abnormal expression of miR-195 played a potential role in mitochondrial disorder by targeting mfn2 in hippocampus of SAMP8 mice. Therefore, upregulation of mfn2 protein by inhibiting miR-195 might be a potential new therapeutic strategy for treatment of AD.
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Affiliation(s)
- Rui Zhang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China; Burn Engineering Center of Hebei Province, Shijiazhuang 050031, PR China
| | - Huimin Zhou
- Burn Engineering Center of Hebei Province, Shijiazhuang 050031, PR China; Department of Endocrinology, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China
| | - Lei Jiang
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China
| | - Yueran Mao
- Department of Endocrinology, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China
| | - Ximing Cui
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China
| | - Bing Xie
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China; Burn Engineering Center of Hebei Province, Shijiazhuang 050031, PR China
| | - Dongsheng Cui
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China
| | - Hui Wang
- Department of Orthopedics, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China
| | - Qingfu Zhang
- Burn Engineering Center of Hebei Province, Shijiazhuang 050031, PR China
| | - Shunjiang Xu
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang 050031, PR China; Burn Engineering Center of Hebei Province, Shijiazhuang 050031, PR China.
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50
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Deregulation of miRNA-181c potentially contributes to the pathogenesis of AD by targeting collapsin response mediator protein 2 in mice. J Neurol Sci 2016; 367:3-10. [DOI: 10.1016/j.jns.2016.05.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 05/05/2016] [Accepted: 05/18/2016] [Indexed: 12/26/2022]
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