microRNA‐132 is overexpressed in glia in temporal lobe epilepsy and reduces the expression of pro‐epileptogenic factors in human cultured astrocytes

Temporal lobe epilepsy (TLE) is a chronic neurological disease in humans, which is refractory to pharmacological treatment in about 30% of the patients. Reactive glial cells are thought to play a major role during the development of epilepsy (epileptogenesis) via regulation of brain inflammation and...

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Veröffentlicht in:Glia 2020-01, Vol.68 (1), p.60-75
Hauptverfasser: Korotkov, Anatoly, Broekaart, Diede W. M., Banchaewa, Leyla, Pustjens, Ben, Scheppingen, Jackelien, Anink, Jasper J., Baayen, Johannes C., Idema, Sander, Gorter, Jan A., Vliet, Erwin A., Aronica, Eleonora
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container_issue 1
container_start_page 60
container_title Glia
container_volume 68
creator Korotkov, Anatoly
Broekaart, Diede W. M.
Banchaewa, Leyla
Pustjens, Ben
Scheppingen, Jackelien
Anink, Jasper J.
Baayen, Johannes C.
Idema, Sander
Gorter, Jan A.
Vliet, Erwin A.
Aronica, Eleonora
description Temporal lobe epilepsy (TLE) is a chronic neurological disease in humans, which is refractory to pharmacological treatment in about 30% of the patients. Reactive glial cells are thought to play a major role during the development of epilepsy (epileptogenesis) via regulation of brain inflammation and remodeling of the extracellular matrix (ECM). These processes can be regulated by microRNAs (miRs), a class of small non‐coding RNAs, which can control entire gene networks at a post‐transcriptional level. The expression of miRs is known to change dynamically during epileptogenesis. miR‐132 is one of the most commonly upregulated miRs in animal TLE models with important roles shown in neurons. However, the possible role of miR‐132 in glia remains largely unknown. The aim of this study was to characterize the cell‐type specific expression of miR‐132 in the hippocampus of patients with TLE and during epileptogenesis in a rat TLE model. Furthermore, the potential role of miR‐132 was investigated by transfection of human primary cultured astrocytes that were stimulated with the cytokines IL‐1β or TGF‐β1. We showed an increased expression of miR‐132 in the human and rat epileptogenic hippocampus, particularly in glial cells. Transfection of miR‐132 in human primary astrocytes reduced the expression of pro‐epileptogenic COX‐2, IL‐1β, TGF‐β2, CCL2, and MMP3. This suggests that miR‐132, particularly in astrocytes, represents a potential therapeutic target that warrants further in vivo investigation. Main Points miR‐132 expression is increased in the epileptogenic human and rat hippocampus. miR‐132 is expressed by reactive glia. miR‐132 attenuates expression of pro-epileptogenic factors in cultured human astrocytes.
doi_str_mv 10.1002/glia.23700
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M. ; Banchaewa, Leyla ; Pustjens, Ben ; Scheppingen, Jackelien ; Anink, Jasper J. ; Baayen, Johannes C. ; Idema, Sander ; Gorter, Jan A. ; Vliet, Erwin A. ; Aronica, Eleonora</creator><creatorcontrib>Korotkov, Anatoly ; Broekaart, Diede W. M. ; Banchaewa, Leyla ; Pustjens, Ben ; Scheppingen, Jackelien ; Anink, Jasper J. ; Baayen, Johannes C. ; Idema, Sander ; Gorter, Jan A. ; Vliet, Erwin A. ; Aronica, Eleonora</creatorcontrib><description>Temporal lobe epilepsy (TLE) is a chronic neurological disease in humans, which is refractory to pharmacological treatment in about 30% of the patients. Reactive glial cells are thought to play a major role during the development of epilepsy (epileptogenesis) via regulation of brain inflammation and remodeling of the extracellular matrix (ECM). These processes can be regulated by microRNAs (miRs), a class of small non‐coding RNAs, which can control entire gene networks at a post‐transcriptional level. The expression of miRs is known to change dynamically during epileptogenesis. miR‐132 is one of the most commonly upregulated miRs in animal TLE models with important roles shown in neurons. However, the possible role of miR‐132 in glia remains largely unknown. The aim of this study was to characterize the cell‐type specific expression of miR‐132 in the hippocampus of patients with TLE and during epileptogenesis in a rat TLE model. Furthermore, the potential role of miR‐132 was investigated by transfection of human primary cultured astrocytes that were stimulated with the cytokines IL‐1β or TGF‐β1. We showed an increased expression of miR‐132 in the human and rat epileptogenic hippocampus, particularly in glial cells. Transfection of miR‐132 in human primary astrocytes reduced the expression of pro‐epileptogenic COX‐2, IL‐1β, TGF‐β2, CCL2, and MMP3. 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M. ; Banchaewa, Leyla ; Pustjens, Ben ; Scheppingen, Jackelien ; Anink, Jasper J. ; Baayen, Johannes C. ; Idema, Sander ; Gorter, Jan A. ; Vliet, Erwin A. ; Aronica, Eleonora</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4480-d9e723d553c94a81e9aa6a3da18a7d7589b091b1b81a59c954d6b99a7e091f193</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Animal models</topic><topic>Animals</topic><topic>Astrocytes</topic><topic>Astrocytes - metabolism</topic><topic>Astrocytes - pathology</topic><topic>Cells, Cultured</topic><topic>Cytokines</topic><topic>Drug therapy</topic><topic>Epilepsy</topic><topic>Epilepsy, Temporal Lobe - genetics</topic><topic>Epilepsy, Temporal Lobe - metabolism</topic><topic>Epilepsy, Temporal Lobe - pathology</topic><topic>epileptogenesis</topic><topic>Extracellular matrix</topic><topic>Female</topic><topic>Gene Expression</topic><topic>Glial cells</topic><topic>Hippocampus</topic><topic>Hippocampus - metabolism</topic><topic>Hippocampus - pathology</topic><topic>Humans</topic><topic>IL‐1 beta</topic><topic>In vivo methods and tests</topic><topic>Male</topic><topic>MicroRNAs</topic><topic>MicroRNAs - biosynthesis</topic><topic>MicroRNAs - genetics</topic><topic>Middle Aged</topic><topic>miRNA</topic><topic>Monocyte chemoattractant protein 1</topic><topic>Neuroglia - metabolism</topic><topic>Neuroglia - pathology</topic><topic>neuroinflammation</topic><topic>Neurological diseases</topic><topic>Neuronal-glial interactions</topic><topic>Non-coding RNA</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Ribonucleic acid</topic><topic>RNA</topic><topic>Temporal lobe</topic><topic>TGF‐beta</topic><topic>Therapeutic applications</topic><topic>Transcription</topic><topic>Transfection</topic><topic>Transforming growth factor-b1</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Korotkov, Anatoly</creatorcontrib><creatorcontrib>Broekaart, Diede W. 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Reactive glial cells are thought to play a major role during the development of epilepsy (epileptogenesis) via regulation of brain inflammation and remodeling of the extracellular matrix (ECM). These processes can be regulated by microRNAs (miRs), a class of small non‐coding RNAs, which can control entire gene networks at a post‐transcriptional level. The expression of miRs is known to change dynamically during epileptogenesis. miR‐132 is one of the most commonly upregulated miRs in animal TLE models with important roles shown in neurons. However, the possible role of miR‐132 in glia remains largely unknown. The aim of this study was to characterize the cell‐type specific expression of miR‐132 in the hippocampus of patients with TLE and during epileptogenesis in a rat TLE model. Furthermore, the potential role of miR‐132 was investigated by transfection of human primary cultured astrocytes that were stimulated with the cytokines IL‐1β or TGF‐β1. We showed an increased expression of miR‐132 in the human and rat epileptogenic hippocampus, particularly in glial cells. Transfection of miR‐132 in human primary astrocytes reduced the expression of pro‐epileptogenic COX‐2, IL‐1β, TGF‐β2, CCL2, and MMP3. This suggests that miR‐132, particularly in astrocytes, represents a potential therapeutic target that warrants further in vivo investigation. Main Points miR‐132 expression is increased in the epileptogenic human and rat hippocampus. miR‐132 is expressed by reactive glia. miR‐132 attenuates expression of pro-epileptogenic factors in cultured human astrocytes.</abstract><cop>Hoboken, USA</cop><pub>John Wiley &amp; Sons, Inc</pub><pmid>31408236</pmid><doi>10.1002/glia.23700</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0002-3542-3770</orcidid><orcidid>https://orcid.org/0000-0002-0532-4798</orcidid><orcidid>https://orcid.org/0000-0001-5747-3202</orcidid><orcidid>https://orcid.org/0000-0002-8313-6282</orcidid><orcidid>https://orcid.org/0000-0002-4842-0659</orcidid><orcidid>https://orcid.org/0000-0003-3842-1700</orcidid><orcidid>https://orcid.org/0000-0002-0671-857X</orcidid><oa>free_for_read</oa></addata></record>
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1098-1136
language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_6899748
source MEDLINE; Access via Wiley Online Library
subjects Adult
Aged
Aged, 80 and over
Animal models
Animals
Astrocytes
Astrocytes - metabolism
Astrocytes - pathology
Cells, Cultured
Cytokines
Drug therapy
Epilepsy
Epilepsy, Temporal Lobe - genetics
Epilepsy, Temporal Lobe - metabolism
Epilepsy, Temporal Lobe - pathology
epileptogenesis
Extracellular matrix
Female
Gene Expression
Glial cells
Hippocampus
Hippocampus - metabolism
Hippocampus - pathology
Humans
IL‐1 beta
In vivo methods and tests
Male
MicroRNAs
MicroRNAs - biosynthesis
MicroRNAs - genetics
Middle Aged
miRNA
Monocyte chemoattractant protein 1
Neuroglia - metabolism
Neuroglia - pathology
neuroinflammation
Neurological diseases
Neuronal-glial interactions
Non-coding RNA
Rats
Rats, Sprague-Dawley
Ribonucleic acid
RNA
Temporal lobe
TGF‐beta
Therapeutic applications
Transcription
Transfection
Transforming growth factor-b1
Young Adult
title microRNA‐132 is overexpressed in glia in temporal lobe epilepsy and reduces the expression of pro‐epileptogenic factors in human cultured astrocytes
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