1
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Todoran R, Falcione SR, Clarke M, Joy T, Boghozian R, Jickling GC. microRNA as a therapeutic for ischemic stroke. Neurochem Int 2023; 163:105487. [PMID: 36657721 DOI: 10.1016/j.neuint.2023.105487] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/11/2023] [Accepted: 01/15/2023] [Indexed: 01/18/2023]
Abstract
microRNA (miRNA) are important regulators of gene expression. miRNA have the potential as a treatment to modulate genes, pathways and cells involved in ischemic stroke. In this review, we specifically present miRNA in stroke as a treatment to decrease thrombosis, reduce blood brain barrier (BBB) disruption and hemorrhagic transformation (HT), modulate inflammation, and modify angiogenesis. miRNA as a treatment for stroke is an emerging area with evidence from animal studies demonstrating its potential. While no miRNA is currently approved for human use, several have shown promise in clinical trials to treat medical conditions, such as miR-122 for hepatitis C. The role of miRNA as a treatment for specific applications in ischemic stroke is presented including a discussion of the benefits and barriers of miRNA as a treatment, and directions for future advancement.
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Affiliation(s)
- Raluca Todoran
- Neuroscience and Mental Health Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Sarina R Falcione
- Department of Medicine, Division of Neurology, University of Alberta, Edmonton, Canada
| | - Michael Clarke
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
| | - Twinkle Joy
- Department of Medicine, Division of Neurology, University of Alberta, Edmonton, Canada
| | - Roobina Boghozian
- Department of Medicine, Division of Neurology, University of Alberta, Edmonton, Canada
| | - Glen C Jickling
- Neuroscience and Mental Health Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada; Department of Medicine, Division of Neurology, University of Alberta, Edmonton, Canada; Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada.
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2
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Branyan TE, Selvamani A, Park MJ, Korula KE, Kosel KF, Srinivasan R, Sohrabji F. Functional Assessment of Stroke-Induced Regulation of miR-20a-3p and Its Role as a Neuroprotectant. Transl Stroke Res 2022; 13:432-448. [PMID: 34570349 PMCID: PMC9046320 DOI: 10.1007/s12975-021-00945-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 08/12/2021] [Accepted: 09/07/2021] [Indexed: 12/14/2022]
Abstract
MicroRNAs have gained popularity as a potential treatment for many diseases, including stroke. This study identifies and characterizes a specific member of the miR-17-92 cluster, miR-20a-3p, as a possible stroke therapeutic. A comprehensive microRNA screening showed that miR-20a-3p was significantly upregulated in astrocytes of adult female rats, which typically have better stroke outcomes, while it was profoundly downregulated in astrocytes of middle-aged females and adult and middle-aged males, groups that typically have more severe stroke outcomes. Assays using primary human astrocytes and neurons show that miR-20a-3p treatment alters mitochondrial dynamics in both cell types. To assess whether stroke outcomes could be improved by elevating astrocytic miR-20a-3p, we created a tetracycline (Tet)-induced recombinant adeno-associated virus (rAAV) construct where miR-20a-3p was located downstream a glial fibrillary acidic protein promoter. Treatment with doxycycline induced miR-20-3p expression in astrocytes, reducing mortality and modestly improving sensory motor behavior. A second Tet-induced rAAV construct was created in which miR-20a-3p was located downstream of a neuron-specific enolase (NSE) promoter. These experiments demonstrate that neuronal expression of miR-20a-3p is vastly more neuroprotective than astrocytic expression, with animals receiving the miR-20a-3p vector showing reduced infarction and sensory motor improvement. Intravenous injections, which are a therapeutically tractable treatment route, with miR-20a-3p mimic 4 h after middle cerebral artery occlusion (MCAo) significantly improved stroke outcomes including infarct volume and sensory motor performance. Improvement was not observed when miR-20a-3p was given immediately or 24 h after MCAo, identifying a unique delayed therapeutic window. Overall, this study identifies a novel neuroprotective microRNA and characterizes several key pathways by which it can improve stroke outcomes.
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Affiliation(s)
- Taylor E Branyan
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA
- Texas A&M Institute for Neuroscience, College Station, TX, 77840, USA
| | - Amutha Selvamani
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA
| | - Min Jung Park
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA
| | - Kriti E Korula
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA
| | - Kelby F Kosel
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA
| | - Rahul Srinivasan
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA
- Texas A&M Institute for Neuroscience, College Station, TX, 77840, USA
| | - Farida Sohrabji
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, 77807, USA.
- Texas A&M Institute for Neuroscience, College Station, TX, 77840, USA.
- Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, 8447 Riverside Pkwy, Bryan, TX, 77807, USA.
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3
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Zhao Z, Wu C, He X, Zhao E, Hu S, Han Y, Wang T, Chen Y, Liu T, Huang S. MicroRNA let-7f alleviates vascular endothelial cell dysfunction via targeting HMGA2 under oxygen-glucose deprivation and reoxygenation. Brain Res 2021; 1772:147662. [PMID: 34529965 DOI: 10.1016/j.brainres.2021.147662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 08/26/2021] [Accepted: 09/08/2021] [Indexed: 01/22/2023]
Abstract
Stroke is a fatal disease with high disability and mortality and there is no credible treatment for stroke at present. Studies on stroke are extensively developed to explore the underlying mechanisms of ischemic and reperfusion injuries. Herein, we investigated the functions of microRNA let-7f (also termed let-7f-5p) in vascular endothelial cell dysfunction. The bEnd.3 cells were stimulated with oxygen-glucose deprivation and reoxygenation (OGD/R) to mimic cell injury in vitro. CCK-8 assays, flow cytometry and western blot analyses were conducted to examine the viability and apoptosis of bEnd.3 cells. Reverse transcription quantitative polymerase chain reaction analyses were employed to measure RNA expression. Endothelial cell permeability in vitro assay was employed to assess endothelial permeability of bEnd.3 cells, and expression levels of proteins associated with cell apoptosis or blood-brain barrier (BBB) were detected by western blot analyses. Luciferase reporter assay was conducted to explore the combination between let-7f and HMGA2. We found that OGD/R induced injuries on endothelial cells (bEnd.3) by decreasing cell viability and promoting cell apoptosis. Let-7f exhibited low expression in bEnd.3 cells under OGD/R. Let-7f overexpression increased the viability of bEnd.3 cells and inhibited cell apoptosis. In addition, the endothelial permeability of bEnd.3 cells was increased by OGD/R and reversed by let-7f overexpression. The levels of tight junction proteins (ZO-1 and occludin) were downregulated by OGD/R and then reversed by let-7f overexpression. Mechanistically, HMGA2 is a target gene of let-7f and its expression was negatively regulated by let-7f. Rescue assays revealed that HMGA2 overexpression reversed the effects of let-7f overexpression on cell viability, cell apoptosis, endothelial permeability, and BBB function. In conclusion, let-7f alleviates vascular endothelial cell dysfunction by downregulating HMGA2 expression under OGD/R.
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Affiliation(s)
- Zhongyan Zhao
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Chanji Wu
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Xiangying He
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Eryi Zhao
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Shijun Hu
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Yeguang Han
- Department of Central Laboratory, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Ting Wang
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Yanquan Chen
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China
| | - Tao Liu
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China.
| | - Shixiong Huang
- Department of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan, China.
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4
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Lopez MS, Morris-Blanco KC, Ly N, Maves C, Dempsey RJ, Vemuganti R. MicroRNA miR-21 Decreases Post-stroke Brain Damage in Rodents. Transl Stroke Res 2021; 13:483-493. [PMID: 34796453 DOI: 10.1007/s12975-021-00952-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/13/2022]
Abstract
Due to their role in controlling translation, microRNAs emerged as novel therapeutic targets to modulate post-stroke outcomes. We previously reported that miR-21 is the most abundantly induced microRNA in the brain of rodents subjected to preconditioning-induced cerebral ischemic tolerance. We currently show that intracerebral administration of miR-21 mimic decreased the infarct volume and promoted better motor function recovery in adult male and female C57BL/6 mice subjected to transient middle cerebral artery occlusion. The miR-21 mimic treatment is also efficacious in aged mice of both sexes subjected to focal ischemia. Mechanistically, miR-21 mimic treatment decreased the post-ischemic levels of several pro-apoptotic and pro-inflammatory RNAs, which might be responsible for the observed neuroprotection. We further observed post-ischemic neuroprotection in adult mice administered with miR-21 mimic intravenously. Overall, the results of this study implicate miR-21 as a promising candidate for therapeutic translation after stroke.
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Affiliation(s)
- Mary S Lopez
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, 53792, USA.,Cell & Molecular Pathology Training Program, University of Wisconsin, Madison, WI, 53792, USA
| | | | - Nancy Ly
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, 53792, USA
| | - Carly Maves
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, 53792, USA
| | - Robert J Dempsey
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, 53792, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, 53792, USA. .,Cell & Molecular Pathology Training Program, University of Wisconsin, Madison, WI, 53792, USA. .,William S. Middleton Memorial Veterans Hospital, Madison, WI, USA.
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5
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Ruiz D, Bhattarai S, Dharap A. Sex-based eRNA expression and function in ischemic stroke. Neurochem Int 2021; 150:105149. [PMID: 34358636 DOI: 10.1016/j.neuint.2021.105149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/13/2021] [Accepted: 07/28/2021] [Indexed: 10/20/2022]
Abstract
Enhancer-derived RNAs (eRNAs) are a new class of long noncoding RNA that have roles in modulating enhancer-mediated gene transcription, which ultimately influences phenotypic outcomes. We recently published the first study mapping genome-wide eRNA expression in the male mouse cortex during ischemic stroke and identified 77 eRNAs that were significantly altered following a 1 h middle cerebral artery occlusion (MCAO) and 6 h of reperfusion, as compared to sham controls. Knockdown of one such stroke-induced eRNA - eRNA_06347 - resulted in significantly larger infarcts, demonstrating a role for eRNA_06347 in modulating the post-stroke pathophysiology in males. In the current study, we applied quantitative real-time PCR to evaluate whether the 77 eRNAs identified in the male cortex also show altered expression in the post-stroke female cortex. Using age-matched and time-matched female mice, we found that only a subset of the 77 eRNAs were detected in the post-stroke female cortex. Of these, only a small fraction showed similar temporal expression characteristics as males, including eRNA_06347 which was highly induced in both sexes. Knockdown of eRNA_06347 in the female cortex resulted in significantly increased infarct volumes that were closely matched to those in males, indicating that eRNA_06347 modulates the post-stroke pathophysiology similarly in males and females. This suggests a common underlying role for eRNA_06347 in the two sexes. Overall, this is the first study to evaluate eRNA expression and perturbation in the female cortex during stroke, and present a comparative analysis between males and females. Our findings show that eRNAs have sex-dependent and sex-independent expression patterns that may be of significance to the pathophysiological responses to stroke in the two sexes.
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Affiliation(s)
- Diandra Ruiz
- Laboratory for Stroke Research and Noncoding RNA Biology, JFK Neuroscience Institute, HackensackMeridian Health JFK University Medical Center, Edison, NJ, 08820, USA
| | - Sunil Bhattarai
- Laboratory for Stroke Research and Noncoding RNA Biology, JFK Neuroscience Institute, HackensackMeridian Health JFK University Medical Center, Edison, NJ, 08820, USA
| | - Ashutosh Dharap
- Laboratory for Stroke Research and Noncoding RNA Biology, JFK Neuroscience Institute, HackensackMeridian Health JFK University Medical Center, Edison, NJ, 08820, USA; Department of Neurology, Hackensack Meridian School of Medicine, Nutley, NJ, 07110, USA.
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6
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Bormann D, Stojanovic T, Cicvaric A, Schuld GJ, Cabatic M, Ankersmit HJ, Monje FJ. miRNA-132/212 Gene-Deletion Aggravates the Effect of Oxygen-Glucose Deprivation on Synaptic Functions in the Female Mouse Hippocampus. Cells 2021; 10:1709. [PMID: 34359879 PMCID: PMC8306255 DOI: 10.3390/cells10071709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 12/29/2022] Open
Abstract
Cerebral ischemia and its sequelae, which include memory impairment, constitute a leading cause of disability worldwide. Micro-RNAs (miRNA) are evolutionarily conserved short-length/noncoding RNA molecules recently implicated in adaptive/maladaptive neuronal responses to ischemia. Previous research independently implicated the miRNA-132/212 cluster in cholinergic signaling and synaptic transmission, and in adaptive/protective mechanisms of neuronal responses to hypoxia. However, the putative role of miRNA-132/212 in the response of synaptic transmission to ischemia remained unexplored. Using hippocampal slices from female miRNA-132/212 double-knockout mice in an established electrophysiological model of ischemia, we here describe that miRNA-132/212 gene-deletion aggravated the deleterious effect of repeated oxygen-glucose deprivation insults on synaptic transmission in the dentate gyrus, a brain region crucial for learning and memory functions. We also examined the effect of miRNA-132/212 gene-deletion on the expression of key mediators in cholinergic signaling that are implicated in both adaptive responses to ischemia and hippocampal neural signaling. miRNA-132/212 gene-deletion significantly altered hippocampal AChE and mAChR-M1, but not α7-nAChR or MeCP2 expression. The effects of miRNA-132/212 gene-deletion on hippocampal synaptic transmission and levels of cholinergic-signaling elements suggest the existence of a miRNA-132/212-dependent adaptive mechanism safeguarding the functional integrity of synaptic functions in the acute phase of cerebral ischemia.
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Affiliation(s)
- Daniel Bormann
- Center for Physiology and Pharmacology, Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Schwarzspanierstraße 17, 1090 Vienna, Austria; (D.B.); (T.S.); (G.J.S.); (M.C.)
- Laboratory for Cardiac and Thoracic Diagnosis, Department of Surgery, Regeneration and Applied Immunology, Medical University of Vienna, Research Laboratories Vienna General Hospital, Waehringer Guertel 18-20, 1090 Vienna, Austria;
- Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Tamara Stojanovic
- Center for Physiology and Pharmacology, Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Schwarzspanierstraße 17, 1090 Vienna, Austria; (D.B.); (T.S.); (G.J.S.); (M.C.)
| | - Ana Cicvaric
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, New York, NY 10461, USA;
| | - Gabor J. Schuld
- Center for Physiology and Pharmacology, Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Schwarzspanierstraße 17, 1090 Vienna, Austria; (D.B.); (T.S.); (G.J.S.); (M.C.)
| | - Maureen Cabatic
- Center for Physiology and Pharmacology, Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Schwarzspanierstraße 17, 1090 Vienna, Austria; (D.B.); (T.S.); (G.J.S.); (M.C.)
| | - Hendrik Jan Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis, Department of Surgery, Regeneration and Applied Immunology, Medical University of Vienna, Research Laboratories Vienna General Hospital, Waehringer Guertel 18-20, 1090 Vienna, Austria;
- Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
- Aposcience AG, Dresdner Straße 87/A 21, 1200 Vienna, Austria
| | - Francisco J. Monje
- Center for Physiology and Pharmacology, Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Schwarzspanierstraße 17, 1090 Vienna, Austria; (D.B.); (T.S.); (G.J.S.); (M.C.)
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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: 6] [Impact Index Per Article: 2.0] [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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Wawrzkiewicz-Jałowiecka A, Lalik A, Soveral G. Recent Update on the Molecular Mechanisms of Gonadal Steroids Action in Adipose Tissue. Int J Mol Sci 2021; 22:5226. [PMID: 34069293 PMCID: PMC8157194 DOI: 10.3390/ijms22105226] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/04/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023] Open
Abstract
The gonadal steroids, including androgens, estrogens and progestogens, are involved in the control of body fat distribution in humans. Nevertheless, not only the size and localization of the fat depots depend on the sex steroids levels, but they can also highly affect the functioning of adipose tissue. Namely, the gonadocorticoids can directly influence insulin signaling, lipid metabolism, fatty acid uptake and adipokine production. They may also alter energy balance and glucose homeostasis in adipocytes in an indirect way, e.g., by changing the expression level of aquaglyceroporins. This work presents the recent advances in understanding the molecular mechanism of how the gonadal steroids influence the functioning of adipose tissue leading to a set of detrimental metabolic consequences. Special attention is given here to highlighting the sexual dimorphism of adipocyte functioning in terms of health and disease. Particularly, we discuss the molecular background of metabolic disturbances occurring in consequence of hormonal imbalance which is characteristic of some common endocrinopathies such as the polycystic ovary syndrome. From this perspective, we highlight the potential drug targets and the active substances which can be used in personalized sex-specific management of metabolic diseases, in accord with the patient's hormonal status.
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Affiliation(s)
- Agata Wawrzkiewicz-Jałowiecka
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Anna Lalik
- Department of Systems Biology and Engineering, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland;
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Graça Soveral
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, 1649-003 Lisboa, Portugal;
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Jia Y, Liu J, Hu H, Duan Q, Chen J, Li L. MiR-363-3p attenuates neonatal hypoxic-ischemia encephalopathy by targeting DUSP5. Neurosci Res 2021; 171:103-113. [PMID: 33744332 DOI: 10.1016/j.neures.2021.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/17/2021] [Accepted: 03/11/2021] [Indexed: 01/12/2023]
Abstract
Neonatal hypoxic-ischemia encephalopathy (HIE) refers to hypoxic-ischemic brain damage caused by perinatal asphyxia. Increasing evidence has revealed the crucial roles of microRNAs (miRNAs) in neonatal HIE. In the current research, we aimed to explore the biological role of miR-363-3p in neonatal HIE. For this purpose, we established in vitro models of PC-12 and SH-SY5Y cells subjected to oxygen-glucose deprivation and reperfusion (OGD/R) and an in vivo rat model subjected to middle cerebral artery occlusion/reperfusion (MCAO/R) treatment. First, using H&E staining, TTC staining, and western blot analysis, we observed that DUSP5 knockdown suppressed HIE in vivo. Then, by performing flow cytometric analysis, western blotting, RT-qPCR, and MTT assays, we observed that DUSP5 silencing suppressed OGD/R-induced cell injury in vitro. Subsequently, we explored the potential regulatory mechanism of DUSP5 in OGD/R-treated cells with luciferase reporter assays and RT-qPCR analysis. The results demonstrated that DUSP5 was targeted by miR-363-3p. Next, functional assays, including flow cytometric analysis, MTT assays, western blotting and RT-qPCR, were conducted to explore the biological functions of miR-363-3p in SH-SY5Y and PC-12 cells. Our data showed that miR-363-3p overexpression suppressed OGD/R-induced cell injury. Finally, the results from rescue experiments showed that enhanced DUSP5 expression counteracted the effect of miR-363-3p overexpression. In conclusion, our data suggested that miR-363-3p attenuates neonatal HIE by targeting DUSP5.
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Affiliation(s)
- Ying Jia
- Department of Paediatrics, Taizhou People's Hospital, Taizhou 225300, Jiangsu, China
| | - Jianping Liu
- Department of Paediatrics, Taizhou People's Hospital, Taizhou 225300, Jiangsu, China.
| | - Haozhong Hu
- Department of Paediatrics, Taizhou People's Hospital, Taizhou 225300, Jiangsu, China
| | - Qingning Duan
- Department of Paediatrics, Taizhou People's Hospital, Taizhou 225300, Jiangsu, China
| | - Jiebin Chen
- Department of Paediatrics, Taizhou People's Hospital, Taizhou 225300, Jiangsu, China
| | - Lining Li
- Department of Paediatrics, Taizhou People's Hospital, Taizhou 225300, Jiangsu, China
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Boltze J, Aronowski JA, Badaut J, Buckwalter MS, Caleo M, Chopp M, Dave KR, Didwischus N, Dijkhuizen RM, Doeppner TR, Dreier JP, Fouad K, Gelderblom M, Gertz K, Golubczyk D, Gregson BA, Hamel E, Hanley DF, Härtig W, Hummel FC, Ikhsan M, Janowski M, Jolkkonen J, Karuppagounder SS, Keep RF, Koerte IK, Kokaia Z, Li P, Liu F, Lizasoain I, Ludewig P, Metz GAS, Montagne A, Obenaus A, Palumbo A, Pearl M, Perez-Pinzon M, Planas AM, Plesnila N, Raval AP, Rueger MA, Sansing LH, Sohrabji F, Stagg CJ, Stetler RA, Stowe AM, Sun D, Taguchi A, Tanter M, Vay SU, Vemuganti R, Vivien D, Walczak P, Wang J, Xiong Y, Zille M. New Mechanistic Insights, Novel Treatment Paradigms, and Clinical Progress in Cerebrovascular Diseases. Front Aging Neurosci 2021; 13:623751. [PMID: 33584250 PMCID: PMC7876251 DOI: 10.3389/fnagi.2021.623751] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
The past decade has brought tremendous progress in diagnostic and therapeutic options for cerebrovascular diseases as exemplified by the advent of thrombectomy in ischemic stroke, benefitting a steeply increasing number of stroke patients and potentially paving the way for a renaissance of neuroprotectants. Progress in basic science has been equally impressive. Based on a deeper understanding of pathomechanisms underlying cerebrovascular diseases, new therapeutic targets have been identified and novel treatment strategies such as pre- and post-conditioning methods were developed. Moreover, translationally relevant aspects are increasingly recognized in basic science studies, which is believed to increase their predictive value and the relevance of obtained findings for clinical application.This review reports key results from some of the most remarkable and encouraging achievements in neurovascular research that have been reported at the 10th International Symposium on Neuroprotection and Neurorepair. Basic science topics discussed herein focus on aspects such as neuroinflammation, extracellular vesicles, and the role of sex and age on stroke recovery. Translational reports highlighted endovascular techniques and targeted delivery methods, neurorehabilitation, advanced functional testing approaches for experimental studies, pre-and post-conditioning approaches as well as novel imaging and treatment strategies. Beyond ischemic stroke, particular emphasis was given on activities in the fields of traumatic brain injury and cerebral hemorrhage in which promising preclinical and clinical results have been reported. Although the number of neutral outcomes in clinical trials is still remarkably high when targeting cerebrovascular diseases, we begin to evidence stepwise but continuous progress towards novel treatment options. Advances in preclinical and translational research as reported herein are believed to have formed a solid foundation for this progress.
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Affiliation(s)
- Johannes Boltze
- School of Life Sciences, University of Warwick, Warwick, United Kingdom
| | - Jaroslaw A Aronowski
- Institute for Stroke and Cerebrovascular Diseases, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Jerome Badaut
- NRS UMR 5287, INCIA, Brain Molecular Imaging Team, University of Bordeaux, Bordeaux cedex, France
| | - Marion S Buckwalter
- Departments of Neurology and Neurological Sciences, and Neurosurgery, Wu Tsai Neurosciences Institute, Stanford School of Medicine, Stanford, CA, United States
| | - Mateo Caleo
- Neuroscience Institute, National Research Council, Pisa, Italy.,Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States.,Department of Physics, Oakland University, Rochester, MI, United States
| | - Kunjan R Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Nadine Didwischus
- School of Life Sciences, University of Warwick, Warwick, United Kingdom
| | - Rick M Dijkhuizen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands
| | - Thorsten R Doeppner
- Department of Neurology, University Medical Center Göttingen, Göttingen, Germany
| | - Jens P Dreier
- Department of Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Bernstein Center for Computational Neuroscience Berlin, Berlin, Germany.,Einstein Center for Neurosciences Berlin, Berlin, Germany
| | - Karim Fouad
- Faculty of Rehabilitation Medicine and Institute for Neuroscience and Mental Health, University of Alberta, Edmonton, AB, Canada
| | - Mathias Gelderblom
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karen Gertz
- Department of Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
| | - Dominika Golubczyk
- Department of Neurosurgery, School of Medicine, University of Warmia and Mazury, Olsztyn, Poland
| | - Barbara A Gregson
- Neurosurgical Trials Group, Institute of Neuroscience, The University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom
| | - Edith Hamel
- Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Daniel F Hanley
- Division of Brain Injury Outcomes, Johns Hopkins University, Baltimore, MD, United States
| | - Wolfgang Härtig
- Paul Flechsig Institute of Brain Research, University of Leipzig, Leipzig, Germany
| | - Friedhelm C Hummel
- Clinical Neuroengineering, Center for Neuroprosthetics and Brain Mind Institute, Swiss Federal Institute of Technology Valais, Clinique Romande de Réadaptation, Sion, Switzerland.,Clinical Neuroscience, University of Geneva Medical School, Geneva, Switzerland
| | - Maulana Ikhsan
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany.,Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany.,Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
| | - Miroslaw Janowski
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland, Baltimore, MD, United States
| | - Jukka Jolkkonen
- Department of Neurology, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Saravanan S Karuppagounder
- Burke Neurological Institute, White Plains, NY, United States.,Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, United States
| | - Richard F Keep
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, United States
| | - Inga K Koerte
- Psychiatric Neuroimaging Laboratory, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States.,Department of Child and Adolescent Psychiatry, Psychosomatic, and Psychotherapy, Ludwig Maximilians University, Munich, Germany
| | - Zaal Kokaia
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Peiying Li
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Fudong Liu
- Department of Neurology, The University of Texas Health Science Center at Houston, McGovern Medical School, Houston, TX, United States
| | - Ignacio Lizasoain
- Unidad de Investigación Neurovascular, Departamento Farmacología y Toxicología, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid, Madrid, Spain
| | - Peter Ludewig
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerlinde A S Metz
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
| | - Axel Montagne
- Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Andre Obenaus
- Department of Pediatrics, University of California, Irvine, Irvine, CA, United States
| | - Alex Palumbo
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany.,Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany.,Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
| | - Monica Pearl
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Miguel Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Anna M Planas
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Àrea de Neurociències, Barcelona, Spain.,Department d'Isquèmia Cerebral I Neurodegeneració, Institut d'Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain
| | - Nikolaus Plesnila
- Institute for Stroke and Dementia Research (ISD), Munich University Hospital, Munich, Germany.,Graduate School of Systemic Neurosciences (GSN), Munich University Hospital, Munich, Germany.,Munich Cluster of Systems Neurology (Synergy), Munich, Germany
| | - Ami P Raval
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Maria A Rueger
- Faculty of Medicine and University Hospital, Department of Neurology, University of Cologne, Cologne, Germany
| | - Lauren H Sansing
- Department of Neurology, Yale University School of Medicine, New Haven, CT, United States
| | - Farida Sohrabji
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M College of Medicine, Bryan, TX, United States
| | - Charlotte J Stagg
- Nuffield Department of Clinical Neurosciences, Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, United Kingdom.,MRC Brain Network Dynamics Unit, University of Oxford, Oxford, United Kingdom
| | - R Anne Stetler
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ann M Stowe
- Department of Neurology and Neurotherapeutics, Peter O'Donnell Jr. Brain Institute, UT Southwestern Medical Center, Dallas, TX, United States
| | - Dandan Sun
- Pittsburgh Institute for Neurodegenerative Disorders, University of Pittsburgh, PA, United States
| | - Akihiko Taguchi
- Department of Regenerative Medicine Research, Institute of Biomedical Research and Innovation, Kobe, Japan
| | - Mickael Tanter
- Institute of Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE 2031, PSL University, Paris, France
| | - Sabine U Vay
- Faculty of Medicine and University Hospital, Department of Neurology, University of Cologne, Cologne, Germany
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, United States
| | - Denis Vivien
- UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Normandy University, Caen, France.,CHU Caen, Clinical Research Department, CHU de Caen Côte de Nacre, Caen, France
| | - Piotr Walczak
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland, Baltimore, MD, United States
| | - Jian Wang
- Department of Human Anatomy, College of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Ye Xiong
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, United States
| | - Marietta Zille
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany.,Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany.,Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
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11
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Jiang C, Dong N, Feng J, Hao M. MiRNA-190 exerts neuroprotective effects against ischemic stroke through Rho/Rho-kinase pathway. Pflugers Arch 2020; 473:121-130. [PMID: 33196911 DOI: 10.1007/s00424-020-02490-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Ischemic stroke is an urgent public health concern and one of the major causes of deaths and disabilities over the world. MicroRNA (miRNA) has become a key mediator of cerebral ischemia-reperfusion (I/R) injuries. However, whether miR-190 is involved in cerebral I/R-induced neuronal damage remains unknown. This study was to investigate the role of miR-190 in the brain I/R injury. We divided the rats into sham, I/R, control, and miR-190-mim (miR-190 mimics) groups. Quantitative real-time polymerase chain reaction (qRT-PCR), Nissl staining, flow cytometry, and western blot were conducted to examine the expression of miR-190 and cell apoptosis in different groups. The results showed that the expression of miR-190 was greatly decreased in rats suffering with I/R. Overexpression of miR-190 significantly reduced the increased neurological scores, brain water contents, infarct volumes, and neuronal apoptosis in rats suffering with I/R. In addition, we found that the expression of RhoA and Rho kinase was greatly elevated in rats suffering with I/R. Bioinformatics analysis indicated that Rho was a target of miR-190. Moreover, overexpression of miR-190 significantly downregulated the increased mRNA and protein expression of Rho/Rho kinase and cell apoptosis, while inhibition of miR-190 further upregulated the increased mRNA and protein expression of Rho/Rho kinase and cell apoptosis in rats suffering with I/R. Furthermore, knockdown of Rho significantly downregulated the increased mRNA and protein expression of Rho/Rho kinase and cell apoptosis, while these effects were inhibited by miR-190 inhibitors in rats suffering with I/R. These results indicate that miR-190 confers protection against brain I/R damage by modulating Rho/Rho-kinase signaling.
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Affiliation(s)
- Chuan Jiang
- Department of Neurology, Shandong Provincial Western Hospital, Shandong Provincial ENT Hospital, No.4 Duanxing West Road, Huanyin District, Jinan City, 250022, Shandong Province, People's Republic of China
| | - Ning Dong
- Department of Neurology, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan City, 250001, Shandong Province, People's Republic of China
| | - Jianli Feng
- Department of Neurology, Shandong Provincial Western Hospital, Shandong Provincial ENT Hospital, No.4 Duanxing West Road, Huanyin District, Jinan City, 250022, Shandong Province, People's Republic of China.
| | - Maolin Hao
- Department of Neurology, Shandong Provincial Western Hospital, Shandong Provincial ENT Hospital, No.4 Duanxing West Road, Huanyin District, Jinan City, 250022, Shandong Province, People's Republic of China
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12
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Microarray Profiling Reveals Distinct Circulating miRNAs in Aged Male and Female Mice Subjected to Post-stroke Social Isolation. Neuromolecular Med 2020; 23:305-314. [PMID: 33074466 DOI: 10.1007/s12017-020-08622-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/08/2020] [Indexed: 12/11/2022]
Abstract
Social isolation (SI) increases ischemic injury and significantly delays recovery after experimental stroke. Changes in circulating microRNAs (miRNAs) have been implicated in several neurological disorders, including stroke. However, potential biomarkers to elucidate the mechanisms that underlie the detrimental effects of post-stroke isolation are unknown. Aged C57BL/6 male and female mice (18-20 months) were subjected to a 60-min middle cerebral artery occlusion followed by reperfusion and were assigned to either isolation (SI) or continued pair housing (PH) immediately after stroke. On day 15, mice were sacrificed, and plasma samples were collected for miRNAome analysis. Top candidate miRNAs and their biological functions were identified using integrated bioinformatics. The miRNAome analysis revealed a total of 21 differentially expressed miRNAs across both sexes with fold change of 3 or higher. Within the female cohort, miR-206-3p, -376a-3p, -34b-5p, -133a-5p, -466f, and -671-3p were highly altered relative to the PH housing condition. Similarly in males, miR-376c-3p, -181d-5p, -712-5p, -186-5p, -21a-3p, -30d-3p, -495-3p, -669c-5p, -335-5p, -429-3p, -31-3p, and -217-5p were identified. Following Kyoto Encyclopedia of Genes and Genomes analysis, the identified miRNAs effected distinct subset of pathways within sexes. Interactional network analysis revealed miR-495-3p (male) and miR-34b-5p (female) as pivotal nodes that targeted the largest subset of genes. We identified several sex-specific miRNAs as candidate biomarkers for post-stroke SI in aged male and female mice. Additionally, these results suggest that there is potential to use plasma-based circulating miRNAs as a source of novel biomarkers to identify biological pathways involved in post-stroke SI.
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13
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Panta A, Montgomery K, Nicolas M, Mani KK, Sampath D, Sohrabji F. Mir363-3p Treatment Attenuates Long-Term Cognitive Deficits Precipitated by an Ischemic Stroke in Middle-Aged Female Rats. Front Aging Neurosci 2020; 12:586362. [PMID: 33132904 PMCID: PMC7550720 DOI: 10.3389/fnagi.2020.586362] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/02/2020] [Indexed: 01/29/2023] Open
Abstract
Cognitive impairment and memory loss are commonly seen after stroke and a third of patients will develop signs of dementia a year after stroke. Despite a large number of studies on the beneficial effects of neuroprotectants, few studies have examined the effects of these compounds/interventions on long-term cognitive impairment. Our previous work showed that the microRNA mir363-3p reduced infarct volume and sensory-motor impairment in the acute stage of stroke in middle-aged females but not males. Thus, the present study determined the impact of mir363-3p treatment on stroke-induced cognitive impairment in middle-aged females. Sprague–Dawley female rats (12 months of age) were subjected to middle cerebral artery occlusion (MCAo; or sham surgery) and injected (iv) with mir363-3p mimic (MCAo + mir363-3p) or scrambled oligos (MCAo + scrambled) 4 h later. Sensory-motor performance was assessed in the acute phase (2–5 days after stroke), while all other behaviors were tested 6 months after MCAo (18 months of age). Cognitive function was assessed by the novel object recognition test (declarative memory) and the Barnes maze (spatial memory). The MCAo + scrambled group showed reduced preference for a novel object after the stroke and poor learning in the spatial memory task. In contrast, mir363-3p treated animals were similar to either their baseline performance or to the sham group. Histological analysis showed significant deterioration of specific white matter tracts due to stroke, which was attenuated in mir363-3p treated animals. The present data builds on our previous finding to show that a neuroprotectant can abrogate the long-term effects of stroke.
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Affiliation(s)
- Aditya Panta
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Texas A&M University, Bryan, TX, United States
| | - Karienn Montgomery
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Texas A&M University, Bryan, TX, United States
| | - Marissa Nicolas
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Texas A&M University, Bryan, TX, United States
| | - Kathiresh K Mani
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Texas A&M University, Bryan, TX, United States
| | - Dayalan Sampath
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Texas A&M University, Bryan, TX, United States
| | - Farida Sohrabji
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Texas A&M University, Bryan, TX, United States
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14
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Yang XL, Cao CZ, Zhang QX. MiR-195 alleviates oxygen-glucose deprivation/reperfusion-induced cell apoptosis via inhibition of IKKα-mediated NF-κB pathway. Int J Neurosci 2020; 131:755-764. [PMID: 32271641 DOI: 10.1080/00207454.2020.1754212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Increasing evidence confirmed that miRNA plays a critical role in the occurrence and development of ischemic stroke. Here, the aim of this study was to examine the function and mechanisms of miR-195 in vascular endothelial cell apoptosis induced by oxygen-glucose deprivation (OGD). METHODS This study intended to use OGD to simulate ischemia in vitro. The mRNA expression of miR-195, IKKα and NF-κB in human umbilical vein endothelial cells (HUVECs) were detected by RT-qPCR. The proliferation and apoptosis ability of HUVECs were evaluated using MTT assay, colony formation assay and flow cytometry, respectively. Western blot was applied to examine related protein expression. The interaction between miR-195 and IKKα was verified by dual-luciferase reporter gene assay. RESULTS OGD significantly inhibited cell viability and induced cell apoptosis in HUVECs. Meanwhile, OGD treatment notably decreased the expression of miR-195, as well as enhanced NF-κB expression. Moreover, miR-195 directly interacted with IKKα and suppressed its expression. Mechanically, overexpression of miR-195 exhibited pro-proliferation and anti-apoptotic effect on HUVECs treated with OGD through targeting IKKα-mediated NF-κB pathway. At the molecular level, through suppressing IKKα/NF-κB pathway, miR-195 inhibited the expression of pro-apoptotic protein Bax and active caspase-3, but increased the expression of anti-apoptotic Bcl-2 in HUVECs. CONCLUSIONS Our finding uncovers the protective effect of miR-195 on the biological behavior of HUVECs via suppression of the NF-κB pathway induced by IKKα, which may provide a new potential strategy for ischemic stroke clinical treatment.
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Affiliation(s)
- Xiao-Li Yang
- Department of Neurology, Qinghai Provincial People's Hospital, Xining, P. R. China
| | - Cheng-Zhu Cao
- Department of Physiology, Medical College of Qinghai University, Xining, P. R. China
| | - Qing-Xin Zhang
- Department of Radiology, Qinghai Provincial People's Hospital, Xining, P. R. China
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15
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Gareev IF, Beilerly OA, Nazarov VV. [MicroRNA and their potential role in the pathogenesis of hemorrhagic stroke]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2020; 84:86-93. [PMID: 32207747 DOI: 10.17116/neiro20208401186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Spontaneous (non-traumatic) intracerebral hemorrhage (ICH), or hemorrhagic stroke, is a common and serious disease with high morbidity and mortality. Current methods of treating hemorrhagic stroke, from conservative to surgical, are insufficient, which justifies the continuation of the study of this condition, including cellular and molecular changes that occur during a stroke. MicroRNAs (miRNAs) are a class of small non-coding RNAs that play an important role in post-transcriptional regulation of gene expression. MicroRNAs are involved in almost all biological processes, including cell proliferation, apoptosis and cell differentiation, and are also key substances in pathophysiological processes in many diseases, and therefore they can be both potential biomarkers and new therapeutic targets in cancer, degenerative and cardiovascular disease. In recent years, a number of studies have been aimed at studying the role of microRNAs in pathophysiological processes in hemorrhagic stroke, such as apoptosis, inflammation, oxidative stress, violation of the blood-brain barrier (BBB) and cerebral edema. The results of the studies demonstrated that changes in miRNA expression may be associated with the prognosis of ICH. In this article, we consider studies related to miRNAs and hemorrhagic stroke, and clarify the complex relationship between them.
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Affiliation(s)
- I F Gareev
- Bashkir State Medical University, Ufa, Russia
| | | | - V V Nazarov
- Burdenko NeurosurgicalCenter, Moscow, Russia
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16
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MicroRNAs in central nervous system diseases: A prospective role in regulating blood-brain barrier integrity. Exp Neurol 2019; 323:113094. [PMID: 31676317 DOI: 10.1016/j.expneurol.2019.113094] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/17/2019] [Accepted: 10/27/2019] [Indexed: 12/26/2022]
Abstract
Given the essential role of the blood-brain barrier (BBB) in the central nervous system (CNS), cumulative investigations have been performed to elucidate how modulation of BBB structural and functional integrity affects the pathogenesis of CNS diseases such as stroke, traumatic brain injuries, dementia, and cerebral infection. Recent studies have demonstrated that microRNAs (miRNAs) contribute to the maintenance of the BBB and thereby mediate CNS homeostasis. This review summarizes emerging studies that demonstrate cerebral miRNAs regulate BBB function in CNS disorders, emphasizing the direct role of miRNAs in BBB molecular composition. Evidence presented in this review will encourage a deeper understanding of the mechanisms by which miRNAs regulate BBB function, and facilitate the development of new miRNAs-based therapies in patients with CNS diseases.
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