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Huang HZ, Ai WQ, Wei N, Zhu LS, Liu ZQ, Zhou CW, Deng MF, Zhang WT, Zhang JC, Yang CQ, Hu YZ, Han ZT, Zhang HH, Jia JJ, Wang J, Liu FF, Li K, Xu Q, Yuan M, Man H, Guo Z, Lu Y, Shu K, Zhu LQ, Liu D. Senktide blocks aberrant RTN3 interactome to retard memory decline and tau pathology in social isolated Alzheimer's disease mice. Protein Cell 2024; 15:261-284. [PMID: 38011644 PMCID: PMC10984625 DOI: 10.1093/procel/pwad056] [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: 10/19/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023] Open
Abstract
Sporadic or late-onset Alzheimer's disease (LOAD) accounts for more than 95% of Alzheimer's disease (AD) cases without any family history. Although genome-wide association studies have identified associated risk genes and loci for LOAD, numerous studies suggest that many adverse environmental factors, such as social isolation, are associated with an increased risk of dementia. However, the underlying mechanisms of social isolation in AD progression remain elusive. In the current study, we found that 7 days of social isolation could trigger pattern separation impairments and presynaptic abnormalities of the mossy fibre-CA3 circuit in AD mice. We also revealed that social isolation disrupted histone acetylation and resulted in the downregulation of 2 dentate gyrus (DG)-enriched miRNAs, which simultaneously target reticulon 3 (RTN3), an endoplasmic reticulum protein that aggregates in presynaptic regions to disturb the formation of functional mossy fibre boutons (MFBs) by recruiting multiple mitochondrial and vesicle-related proteins. Interestingly, the aggregation of RTN3 also recruits the PP2A B subunits to suppress PP2A activity and induce tau hyperphosphorylation, which, in turn, further elevates RTN3 and forms a vicious cycle. Finally, using an artificial intelligence-assisted molecular docking approach, we determined that senktide, a selective agonist of neurokinin3 receptors (NK3R), could reduce the binding of RTN3 with its partners. Moreover, application of senktide in vivo effectively restored DG circuit disorders in socially isolated AD mice. Taken together, our findings not only demonstrate the epigenetic regulatory mechanism underlying mossy fibre synaptic disorders orchestrated by social isolation and tau pathology but also reveal a novel potential therapeutic strategy for AD.
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Affiliation(s)
- He-Zhou Huang
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wen-Qing Ai
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Na Wei
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450002, China
- Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou 450002, China
| | - Ling-Shuang Zhu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhi-Qiang Liu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chao-Wen Zhou
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Man-Fei Deng
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wen-Tao Zhang
- The Second Affiliated Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Jia-Chen Zhang
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chun-Qing Yang
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ya-Zhuo Hu
- Beijing Key Laboratory of Aging and Geriatrics, National Clinical Research Center for Geriatric Disease, Institute of Geriatrics, Chinese PLA General Hospital and Chinese PLA Medical Academy, Beijing 100853, China
| | - Zhi-Tao Han
- Beijing Key Laboratory of Aging and Geriatrics, National Clinical Research Center for Geriatric Disease, Institute of Geriatrics, Chinese PLA General Hospital and Chinese PLA Medical Academy, Beijing 100853, China
| | - Hong-Hong Zhang
- Beijing Key Laboratory of Aging and Geriatrics, National Clinical Research Center for Geriatric Disease, Institute of Geriatrics, Chinese PLA General Hospital and Chinese PLA Medical Academy, Beijing 100853, China
| | - Jian-Jun Jia
- Beijing Key Laboratory of Aging and Geriatrics, National Clinical Research Center for Geriatric Disease, Institute of Geriatrics, Chinese PLA General Hospital and Chinese PLA Medical Academy, Beijing 100853, China
| | - Jing Wang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Fang-Fang Liu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ke Li
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qi Xu
- Department of Neurology, Union Hospital, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Mei Yuan
- The Second Affiliated Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Hengye Man
- Department of Biology, Boston University, Boston, MA 02215, USA
| | - Ziyuan Guo
- Center for Stem Cell and Organoid Medicine (CuSTOM), Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Youming Lu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kai Shu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ling-Qiang Zhu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dan Liu
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Ünalp A, Coskunpinar E, Gunduz K, Pekuz S, Baysal BT, Edizer S, Hayretdag C, Gudeloglu E. Detection of Deregulated miRNAs in Childhood Epileptic Encephalopathies. J Mol Neurosci 2022; 72:1234-1242. [PMID: 35461401 DOI: 10.1007/s12031-022-02001-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/15/2022] [Indexed: 01/07/2023]
Abstract
The term "epileptic encephalopathy" is used to describe a possible relationship between epilepsy and developmental delay. The pathogenesis of developmental encephalopathies, independent of epilepsy, can be defined by genetic control mechanisms. The aim of this study was to investigate the use of miRNAs as serum biomarkers for the determination and discrimination of epileptic encephalopathies. Whole blood samples obtained from 54 individuals in 2 groups designated as epileptic encephalopathy patients' group (n = 24) and healthy controls (n = 30) were included in this study. The expression levels of 10 miRNAs were determined using qRT-PCR. After the determination of expression levels, the correlation of upregulated miRNA levels and Ki67 index was calculated using Pearson correlation test. The comparison of epileptic encephalopathy patients' group with healthy controls revealed the upregulation of one miRNAs (hsa-miR-324-5p) and downregulation of three miRNAs (hsa-miR-146a-5p, hsa-miR-138-5p, hsa-miR-187-3p). It has been determined that miRNAs with altered expression are an important factor in the formation of epileptic seizures and seizure-induced neuronal death. The fact that processes that play a key role in epiloptogenesis are under the control of miRNAs causes miRNAs to become meta-controllers of gene expression in the brain. We thought that further studies are needed to prove that especially hsa-miR-146a-5p, hsa-miR-138-5p, and hsa-miR-187-3p can be used as epileptic encephalopathy biomarkers. The detection of disease-specific miRNAs could contribute to the development of precision treatments.
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Affiliation(s)
- Aycan Ünalp
- Department of Pediatric Neurology, Izmir Faculty of Medicine, University of Health Sciences, Izmir, Turkey.
| | - Ender Coskunpinar
- Department of Medical Biology, School of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Kubra Gunduz
- Department of Medical Biology, School of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Serdar Pekuz
- Department of Pediatric Neurology, University of Health Sciences, Dr. Behcet Uz Children's Training and Research Hospital, Izmir, Turkey
| | - Bahar Toklu Baysal
- Department of Pediatric Neurology, University of Health Sciences, Dr. Behcet Uz Children's Training and Research Hospital, Izmir, Turkey
| | - Selvinaz Edizer
- Department of Pediatric Neurology, University of Health Sciences, Dr. Behcet Uz Children's Training and Research Hospital, Izmir, Turkey
| | - Ceyda Hayretdag
- Department of Neurology, School of Medicine, Beykent University, Istanbul, Turkey
| | - Elif Gudeloglu
- Department of Pediatric Neurology, University of Health Sciences, Dr. Behcet Uz Children's Training and Research Hospital, Izmir, Turkey
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3
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Ren Z, Hu Y, Guo D, Guan Z, Chen L, He J, Yu W. Increased miR‑187‑3p expression after cerebral ischemia/reperfusion induces apoptosis via initiation of endoplasmic reticulum stress. Neurosci Lett 2021; 759:135947. [PMID: 34015413 DOI: 10.1016/j.neulet.2021.135947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 04/13/2021] [Accepted: 05/05/2021] [Indexed: 12/16/2022]
Abstract
Ischemia/reperfusion (I/R) injury induces activation of the endoplasmic reticulum stress (ERS) pathway, accompanied by an increase in apoptosis. Multiple microRNAs (miRNAs/miRs) are dysregulated during I/R and contribute to I/R-induced injury. miRNAs act as suppressors of gene expression and negatively regulate gene expression by targeting the protein-coding sequence (CDS) of specific target mRNAs. Seipin is an endoplasmic reticulum protein that has recently been associated with ERS. We previously reported that seipin is the target gene of miR‑187‑3p. Therefore, we explored the involvement of miR-187-3p in I/R-induced ERS via the regulation of seipin. A rat MCAO/R model was established by 1 h of occlusion and 24 h reperfusion. Neurological deficits and infarction area were examined. PC12 cells were exposed to oxygen‑glucose deprivation/reoxygenation (OGD/R) to model I/R. Expression levels of miR-187-3p and proteins related to ERS and apoptosis were measured using RT-PCR, western blotting, immunofluorescence, and immunohistochemistry, respectively. TUNEL staining was used to assay apoptosis. MCAO/R-induced morphological changes were analyzed with Nissl staining and Hematoxylin-eosin staining. I/R-induced ERS was closely associated with an increase in miR-1873p and a decrease in seipin expression. miR-187-3p agomir further activated the ERS pathway and promoted apoptosis but decreased seipin expression levels; these effects were reversed by miR-187-3p antagomir. Moreover, seipin knockdown aggravated ERS in PC12 cells after OGD/R, and this change was rescued by seipin overexpression. miR-187-3p antagomir did not suppress ERS and apoptosis in seipin knockdown PC12 cells after OGD/R. Our findings demonstrate that the inhibition of miR‑187‑3p attenuated I/R‑induced cerebral injury by regulating seipin-mediated ERS.
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Affiliation(s)
- Zhenkui Ren
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, China; Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guiyang, Guizhou, 550004, China; Laboratory Department of People's Hospital of Southwest Guizhou Autonomous Prefecture, Xingyi, Guizhou, 562400, China
| | - Yumei Hu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, China; Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Dongfen Guo
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, China; Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Zhizhong Guan
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, China; Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guiyang, Guizhou, 550004, China; Department of Pathology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Ling Chen
- Laboratory of Reproductive Medicine, Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Jun He
- Department of Laboratory Medicine, The Second People's Hospital of Guizhou Province, Guiyang, 550002, China; Department of Immunology, Guizhou Medical University, Guiyang, 550004, China.
| | - Wenfeng Yu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, China; Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guiyang, Guizhou, 550004, China.
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4
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Wu Y, Tao L, Liang J, Qiao Y, Liu W, Yu H, Yu X, Liu L. miR-187-3p increases gemcitabine sensitivity in breast cancer cells by targeting FGF9 expression. Exp Ther Med 2020; 20:952-960. [PMID: 32765654 PMCID: PMC7388565 DOI: 10.3892/etm.2020.8770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/10/2020] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most common type of malignancy in women, which remains a significant health concern worldwide. Gemcitabine is a frequently applied anticancer pharmacological agent. However, the efficacy of gemcitabine is limited by chemoresistance. In the present study, a combination of reverse transcription quantitative-PCR, cell viability, flow cytometry, luciferase reporter assay and western blot analysis were performed to elucidate the potential effects of miR-187-3p on gemcitabine sensitivity in the breast cancer cell line, MDA-MB-231. The results revealed that miR-187-3p was significantly decreased in the breast cancer tumor tissues. Moreover, the overexpression of miR-187-3p significantly inhibited cell viability and promoted apoptosis in MDA-MB-231 cells. In addition, miR-187-3p overexpression enhanced the anti-proliferative and pro-apoptotic effects of gemcitabine, indicating that miR-187-3p regulated gemcitabine sensitivity in breast cancer cells. Mechanistically, miR-187-3p negatively regulated the expression of fibroblast growth factor 9 (FGF9) by binding to its 3'-untranslated region. Overexpression of FGF9 reversed the aforementioned effects of miR-187-3p overexpression on cell viability and apoptosis in the presence of gemcitabine. In conclusion, the present study indicated that miR-187-3p increased gemcitabine sensitivity in breast cancer cells by targeting FGF9 expression.
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Affiliation(s)
- Yingqi Wu
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Li Tao
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Junwei Liang
- Oncology Department, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
| | - Yashun Qiao
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Weiwei Liu
- Oncology Department, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
| | - Haina Yu
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Xinghui Yu
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Lanfang Liu
- Oncology Department, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
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Yu P, Song H, Gao J, Li B, Liu Y, Wang Y. Vitamin D (1,25-(OH) 2D 3) regulates the gene expression through competing endogenous RNAs networks in high glucose-treated endothelial progenitor cells. J Steroid Biochem Mol Biol 2019; 193:105425. [PMID: 31302220 DOI: 10.1016/j.jsbmb.2019.105425] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/05/2019] [Accepted: 07/07/2019] [Indexed: 02/08/2023]
Abstract
Vitamin D (vit-D) supplementation can improve endothelial cell function in type 2 diabetes mellitus patients with vit-D insufficiency or deficiency. In the present study, we aimed to compare the expression profiles of circRNAs, lncRNAs, miRNAs, and mRNAs between 1,25-(OH)2D3-treated endothelial progenitor cells (EPCs) and control cells, and to further construct the 1,25-(OH)2D3-regulated ceRNA networks in EPCs. RNA sequencing was performed on the 1,25-(OH)2D3-treated EPCs and control cells derived from the bone marrow (BM). Bioinformatics analyses were performed to identify differentially expressed (DE) microRNAs (miRNAs), circular RNAs (circRNAs), mRNAs, and long non-coding RNAs (lncRNAs). Then Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted to predict the function of genes. Competing endogenous RNA (ceRNA) networks were constructed with Cytoscape software. 1,25-(OH)2D3 application induced changes in the expression profiles of 1791 mRNAs, 2726 lncRNAs, 205 circRNAs, and 45 miRNAs in EPCs treated with high levels of glucose. These DE RNAs were associated with MMP and GTPase activities, specific signaling pathways, and components of actin, extracellular matrix, or adherens junction. DE circRNAs, which functioned independently of their linear host genes, interacted with miRNAs to serve as miRNA sponges in complex ceRNA networks. The data indicated that circRNAs and lncRNAs comprised ceRNAs to sponge effects of miRNAs on the expressions of mRNAs following 1,25-(OH)2D3 application in EPCs. 1,25-(OH)2D3 improved the function of EPCs via associated ceRNA interaction networks in diabetes patients.
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Affiliation(s)
- Ping Yu
- Department of Endocrinology, Shenzhen Samii Medical Center, Shenzhen, 518000, China; Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China.
| | - Haiyan Song
- Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Jiaxin Gao
- Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Bo Li
- Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Ying Liu
- Department of Endocrinology, Daqing People's Hospital (The Fifth Affiliated Hospital of Harbin Medical University), Daqing, 163316, China
| | - Yanhe Wang
- Department of Endocrinology, Shenzhen Samii Medical Center, Shenzhen, 518000, China; Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
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MiR-187-3p mimic alleviates ischemia-reperfusion-induced pain hypersensitivity through inhibiting spinal P2X7R and subsequent mature IL-1β release in mice. Brain Behav Immun 2019; 79:91-101. [PMID: 31100367 DOI: 10.1016/j.bbi.2019.05.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Ischemia-reperfusion (IR)-induced pain hypersensitivity shares features of neuroinflammation and neuropathic pain, accompanied by overproduction of interleukin (IL)-1β. Multiple microRNAs (miRs) are dysregulated during IR; among these miRs, miR-187-3p was recently reported to drive IL-1β release in retinal disease by activating members of the purinergic receptor family. However, the roles of miR-187-3p in the spinal cord are unclear. Thus, we investigated whether miR-187-3p is involved in the pathogenesis of IR-induced pain hypersensitivity by regulating the P2X7R signal and subsequent IL-1β release. METHODS A mouse model was established by 5-min occlusion of the aortic arch. Pain hypersensitivity was assessed by the paw withdrawal threshold (PWT) and paw withdrawal latency (PWL). MiR-187-3p, P2X7R, cleaved caspase-1 and mature IL-1β expression levels were measured by RT-PCR and Western blotting. The in vivo roles of miR-187-3p, P2X7R and IL-1β were explored by intrathecal treatment with synthetic miRs, selective agonists and antagonists in separate experiments. Double immunofluorescence staining was performed to delineate the cellular distribution of P2X7R and IL-1β. RESULTS IR-induced progressively decreased PWT and PWL values were closely related to decreases in miR-187-3p and increases in P2X7R expression levels over time. The functional miR-187-3p/P2X7R pair was preliminarily predicted by a bioinformatic database and confirmed in vivo by quantitative analysis, as mimic-187 greatly increased miR-187-3p but decreased P2X7R expression levels, whereas inhibitor-187 reversed these changes. In contrast, downregulating P2X7R by mimic-187 or A-438079 treatment comparably increased PWT and PWL values in IR-injured mice, while upregulating P2X7R by inhibitor-187 or BzATP treatment decreased PWT and PWL values in sham-operated mice. Moreover, P2X7R and IL-1β immunoreactivities in each group were changed in the same patterns. This finding was further supported by results showing that downregulating IL-1β by A-438079 and IL-1β-neutralizing antibody similarly decreased P2X7R, cleaved caspase-1 and mature IL-1β expression levels, whereas BzATP treatment increased these levels. Expectedly, mimic-187 treatment preserved PWT and PWL values, with decreased cleaved caspase-1 and mature IL-1β expression levels, whereas inhibitor-187 reversed these effects. CONCLUSIONS The spinal miR-187-3p/P2X7R pair functioned in a mouse IR model. Increasing miR-187-3p protected against pain hypersensitivity and mature IL-1β overproduction, partially through inhibiting P2X7R activation.
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Schmidt M, Lax E, Zhou R, Cheishvili D, Ruder AM, Ludiro A, Lapert F, Macedo da Cruz A, Sandrini P, Calzoni T, Vaisheva F, Brandwein C, Luoni A, Massart R, Lanfumey L, Riva MA, Deuschle M, Gass P, Szyf M. Fetal glucocorticoid receptor (Nr3c1) deficiency alters the landscape of DNA methylation of murine placenta in a sex-dependent manner and is associated to anxiety-like behavior in adulthood. Transl Psychiatry 2019; 9:23. [PMID: 30655507 PMCID: PMC6336883 DOI: 10.1038/s41398-018-0348-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 11/13/2018] [Indexed: 12/28/2022] Open
Abstract
Prenatal stress defines long-term phenotypes through epigenetic programming of the offspring. These effects are potentially mediated by glucocorticoid release and by sex. We hypothesized that the glucocorticoid receptor (Gr, Nr3c1) fashions the DNA methylation profile of offspring. Consistent with this hypothesis, fetal Nr3c1 heterozygosity leads to altered DNA methylation landscape in fetal placenta in a sex-specific manner. There was a significant overlap of differentially methylated genes in fetal placenta and adult frontal cortex in Nr3c1 heterozygotes. Phenotypically, Nr3c1 heterozygotes show significantly more anxiety-like behavior than wildtype. DNA methylation status of fetal placental tissue is significantly correlated with anxiety-like behavior of the same animals in adulthood. Thus, placental DNA methylation might predict behavioral phenotypes in adulthood. Our data supports the hypothesis that Nr3c1 influences DNA methylation at birth and that DNA methylation in placenta correlates with adult frontal cortex DNA methylation and anxiety-like phenotypes.
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Affiliation(s)
- Michaela Schmidt
- Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159, Mannheim, Germany.
| | - Elad Lax
- 0000 0004 1936 8649grid.14709.3bDepartment of Pharmacology & Therapeutics, McGill University, Montreal, QC H3G 1Y6 Canada ,0000 0004 1936 8649grid.14709.3bSackler Program for Epigenetics and Psychobiology, McGill University, Montreal, QC H3G 1Y6 Canada
| | - Rudy Zhou
- 0000 0004 1936 8649grid.14709.3bDepartment of Pharmacology & Therapeutics, McGill University, Montreal, QC H3G 1Y6 Canada
| | - David Cheishvili
- 0000 0004 1936 8649grid.14709.3bDepartment of Pharmacology & Therapeutics, McGill University, Montreal, QC H3G 1Y6 Canada ,0000 0004 1936 8649grid.14709.3bSackler Program for Epigenetics and Psychobiology, McGill University, Montreal, QC H3G 1Y6 Canada
| | - Arne Mathias Ruder
- 0000 0001 2190 4373grid.7700.0Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159 Mannheim, Germany
| | - Alessia Ludiro
- 0000 0004 1757 2822grid.4708.bDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, I-20133 Milan, Italy
| | - Florian Lapert
- 0000 0001 2190 4373grid.7700.0Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159 Mannheim, Germany
| | - Anna Macedo da Cruz
- 0000 0001 2190 4373grid.7700.0Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159 Mannheim, Germany
| | - Paolo Sandrini
- 0000 0004 1757 2822grid.4708.bDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, I-20133 Milan, Italy
| | - Teresa Calzoni
- 0000 0004 1757 2822grid.4708.bDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, I-20133 Milan, Italy
| | - Farida Vaisheva
- 0000 0004 1936 8649grid.14709.3bDepartment of Pharmacology & Therapeutics, McGill University, Montreal, QC H3G 1Y6 Canada
| | - Christiane Brandwein
- 0000 0001 2190 4373grid.7700.0Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159 Mannheim, Germany
| | - Alessia Luoni
- 0000 0004 1757 2822grid.4708.bDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, I-20133 Milan, Italy
| | - Renaud Massart
- 0000 0004 1936 8649grid.14709.3bSackler Program for Epigenetics and Psychobiology, McGill University, Montreal, QC H3G 1Y6 Canada ,0000 0004 0638 6979grid.417896.5Inserm, U894, Centre de Psychiatrie et Neurosciences, 75014 Paris, France
| | - Laurence Lanfumey
- 0000 0004 0638 6979grid.417896.5Inserm, U894, Centre de Psychiatrie et Neurosciences, 75014 Paris, France ,0000 0001 2188 0914grid.10992.33Université Paris Descartes, UMRS894, 75014 Paris, France
| | - Marco Andrea Riva
- 0000 0004 1757 2822grid.4708.bDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, I-20133 Milan, Italy
| | - Michael Deuschle
- 0000 0001 2190 4373grid.7700.0Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159 Mannheim, Germany
| | - Peter Gass
- 0000 0001 2190 4373grid.7700.0Central Institute of Mental Health Mannheim (ZI), Medical Faculty of Mannheim, University of Heidelberg, J5, 68159 Mannheim, Germany
| | - Moshe Szyf
- 0000 0004 1936 8649grid.14709.3bDepartment of Pharmacology & Therapeutics, McGill University, Montreal, QC H3G 1Y6 Canada ,0000 0004 1936 8649grid.14709.3bSackler Program for Epigenetics and Psychobiology, McGill University, Montreal, QC H3G 1Y6 Canada
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Abstract
A rapidly growing body of evidence supports the premise that neuroinflammation plays an important role in initiating and sustaining seizures in a range of pediatric epilepsies. Clinical and experimental evidence indicate that neuroinflammation is both an outcome and a contributor to seizures. In this manner, seizures that arise from an initial insult (e.g. infection, trauma, genetic mutation) contribute to an inflammatory response that subsequently promotes recurrent seizures. This cyclical relationship between seizures and neuroinflammation has been described as a 'vicious cycle.' Studies of human tissue resected for surgical treatment of refractory epilepsy have reported activated inflammatory and immune signaling pathways, while animal models have been used to demonstrate that key inflammatory mediators lead to increased seizure susceptibility. Further characterization of the molecular mechanisms involved in this cycle may ultimately enable the development of new therapeutic approaches for the treatment of epilepsy. In this brief review we focus on key inflammatory mediators that have become prominent in recent literature of epilepsy, including newly characterized microRNAs and their potential role in neuroinflammatory signaling.
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Affiliation(s)
- Shruti Bagla
- Division of Hematology/Oncology, Department of Pediatrics, Room 3L22, Children's Hospital of Michigan, 3901 Beaubien Blvd, Detroit, MI 48201, USA
| | - Alan A Dombkowski
- Division of Clinical Pharmacology and Toxicology, Department of Pediatrics, Room 3L22, Children's Hospital of Michigan, 3901 Beaubien Blvd, Detroit, MI 48201, USA
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Wen X, Han XR, Wang YJ, Wang S, Shen M, Zhang ZF, Fan SH, Shan Q, Wang L, Li MQ, Hu B, Sun CH, Wu DM, Lu J, Zheng YL. MicroRNA-421 suppresses the apoptosis and autophagy of hippocampal neurons in epilepsy mice model by inhibition of the TLR/MYD88 pathway. J Cell Physiol 2018; 233:7022-7034. [PMID: 29380367 DOI: 10.1002/jcp.26498] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/24/2018] [Indexed: 11/07/2022]
Abstract
Epilepsy is a group of neurological disorders characterized by epileptic seizures. In this study, we aim to explore the role of microRNA-421 (miR-421) in hippocampal neurons of epilepsy mice via the TLR/MYD88 pathway. Forty mice were randomly served as the normal and model (established as epilepsy model) groups. Hippocampal neurons were assigned into seven groups with different transfections. The RT-qPCR and western blotting were conducted to examine the expression of miR-421 TLR2, TLR4, MYD88, Bax, Bcl-2, p53, Beclin-1, and LC3II/LC3I. Cell proliferation and apoptosis were detected by MTT and flow cytometry.MYD88 is a target gene of miR-421. Model mice showed elevated expression of TLR2, TLR4, MYD88, Bax, p53, Beclin-1, and LC3II/LC3I but reduced expression of miR-421 and Bcl-2. In vitro experiments reveals that overexpression of miR-421 inhibited the TLR/MYD88 pathway. Besides, overexpressed miR-421 declined cell apoptosis but increased cell proliferation. It reveals that miR-421 targeting MYD88 could inhibit the apoptosis and autophagy of hippocampal neurons in epilepsy mice by down-regulating the TLR/MYD88 pathway.
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Affiliation(s)
- Xin Wen
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Xin-Rui Han
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Yong-Jian Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Shan Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Min Shen
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Zi-Feng Zhang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Shao-Hua Fan
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Qun Shan
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Liang Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Meng-Qiu Li
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Bin Hu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Chun-Hui Sun
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Dong-Mei Wu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Jun Lu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
| | - Yuan-Lin Zheng
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province, P.R. China
- College of Health Sciences, Jiangsu Normal University, Xuzhou, P.R., China
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