MicroRNA expression profiling in blood from fragile X‐associated tremor/ataxia syndrome patients

Fragile X‐associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder associated with FMR1 gene premutation alleles (55–200 CGG repeats). Fragile X‐associated tremor/ataxia syndrome clinical core features include action tremor, gait ataxia, cognitive deficits progressing to...

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Veröffentlicht in:Genes, brain and behavior brain and behavior, 2013-08, Vol.12 (6), p.595-603
Hauptverfasser: Alvarez‐Mora, M. I., Rodriguez‐Revenga, L., Madrigal, I., Torres‐Silva, F., Mateu‐Huertas, E., Lizano, E., Friedländer, M. R., Martí, E., Estivill, X., Milà, M.
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container_title Genes, brain and behavior
container_volume 12
creator Alvarez‐Mora, M. I.
Rodriguez‐Revenga, L.
Madrigal, I.
Torres‐Silva, F.
Mateu‐Huertas, E.
Lizano, E.
Friedländer, M. R.
Martí, E.
Estivill, X.
Milà, M.
description Fragile X‐associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder associated with FMR1 gene premutation alleles (55–200 CGG repeats). Fragile X‐associated tremor/ataxia syndrome clinical core features include action tremor, gait ataxia, cognitive deficits progressing to dementia, and frequently parkinsonism. Although the pathogenic molecular mechanism of FXTAS is not completely understood, the restriction of the phenotype to the FMR1 premutation range has given rise to a model based on a RNA toxic gain‐of‐function. Since the identification of the first microRNAs (miRNAs) and their role in normal development, several studies have associated them with neurodegenerative diseases such as Parkinson, Alzheimer and Huntington diseases, suggesting that they play a key role in brain development, as well as in its morphogenesis. Herein, we present the characterization of miRNA expression profiles in FXTAS male patients using deep sequencing‐based technologies and microarray technology. Deep sequencing analysis evidenced 83 miRNAs that were significantly deregulated whereas microarray analysis showed 31. When comparing these results, 14 miRNAs were found deregulated in FXTAS patients. MiR‐424 and miR‐574‐3p showed significant fold change adjusted P‐values in both platforms in FXTAS patients. MiR‐424 has been founded substantially and specifically enriched in human cerebral cortical white matter of Alzheimer disease patients, which, together with cerebral atrophy, is a prominent imaging finding in individuals with FXTAS. The study provides the first systematic evidence of differential miRNA expression changes in FXTAS blood samples. Although further studies are necessary to better characterize the miRNA function in FXTAS disorder, our results suggest that they might contribute to its pathogenesis. High‐throughput technologies have revealed 14 miRNAs deregulated in blood FXTAS samples relative to controls.
doi_str_mv 10.1111/gbb.12061
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I. ; Rodriguez‐Revenga, L. ; Madrigal, I. ; Torres‐Silva, F. ; Mateu‐Huertas, E. ; Lizano, E. ; Friedländer, M. R. ; Martí, E. ; Estivill, X. ; Milà, M.</creator><creatorcontrib>Alvarez‐Mora, M. I. ; Rodriguez‐Revenga, L. ; Madrigal, I. ; Torres‐Silva, F. ; Mateu‐Huertas, E. ; Lizano, E. ; Friedländer, M. R. ; Martí, E. ; Estivill, X. ; Milà, M.</creatorcontrib><description>Fragile X‐associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder associated with FMR1 gene premutation alleles (55–200 CGG repeats). Fragile X‐associated tremor/ataxia syndrome clinical core features include action tremor, gait ataxia, cognitive deficits progressing to dementia, and frequently parkinsonism. Although the pathogenic molecular mechanism of FXTAS is not completely understood, the restriction of the phenotype to the FMR1 premutation range has given rise to a model based on a RNA toxic gain‐of‐function. Since the identification of the first microRNAs (miRNAs) and their role in normal development, several studies have associated them with neurodegenerative diseases such as Parkinson, Alzheimer and Huntington diseases, suggesting that they play a key role in brain development, as well as in its morphogenesis. Herein, we present the characterization of miRNA expression profiles in FXTAS male patients using deep sequencing‐based technologies and microarray technology. Deep sequencing analysis evidenced 83 miRNAs that were significantly deregulated whereas microarray analysis showed 31. When comparing these results, 14 miRNAs were found deregulated in FXTAS patients. MiR‐424 and miR‐574‐3p showed significant fold change adjusted P‐values in both platforms in FXTAS patients. MiR‐424 has been founded substantially and specifically enriched in human cerebral cortical white matter of Alzheimer disease patients, which, together with cerebral atrophy, is a prominent imaging finding in individuals with FXTAS. The study provides the first systematic evidence of differential miRNA expression changes in FXTAS blood samples. Although further studies are necessary to better characterize the miRNA function in FXTAS disorder, our results suggest that they might contribute to its pathogenesis. 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I.</creatorcontrib><creatorcontrib>Rodriguez‐Revenga, L.</creatorcontrib><creatorcontrib>Madrigal, I.</creatorcontrib><creatorcontrib>Torres‐Silva, F.</creatorcontrib><creatorcontrib>Mateu‐Huertas, E.</creatorcontrib><creatorcontrib>Lizano, E.</creatorcontrib><creatorcontrib>Friedländer, M. R.</creatorcontrib><creatorcontrib>Martí, E.</creatorcontrib><creatorcontrib>Estivill, X.</creatorcontrib><creatorcontrib>Milà, M.</creatorcontrib><title>MicroRNA expression profiling in blood from fragile X‐associated tremor/ataxia syndrome patients</title><title>Genes, brain and behavior</title><addtitle>Genes Brain Behav</addtitle><description>Fragile X‐associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder associated with FMR1 gene premutation alleles (55–200 CGG repeats). Fragile X‐associated tremor/ataxia syndrome clinical core features include action tremor, gait ataxia, cognitive deficits progressing to dementia, and frequently parkinsonism. Although the pathogenic molecular mechanism of FXTAS is not completely understood, the restriction of the phenotype to the FMR1 premutation range has given rise to a model based on a RNA toxic gain‐of‐function. Since the identification of the first microRNAs (miRNAs) and their role in normal development, several studies have associated them with neurodegenerative diseases such as Parkinson, Alzheimer and Huntington diseases, suggesting that they play a key role in brain development, as well as in its morphogenesis. Herein, we present the characterization of miRNA expression profiles in FXTAS male patients using deep sequencing‐based technologies and microarray technology. Deep sequencing analysis evidenced 83 miRNAs that were significantly deregulated whereas microarray analysis showed 31. When comparing these results, 14 miRNAs were found deregulated in FXTAS patients. MiR‐424 and miR‐574‐3p showed significant fold change adjusted P‐values in both platforms in FXTAS patients. MiR‐424 has been founded substantially and specifically enriched in human cerebral cortical white matter of Alzheimer disease patients, which, together with cerebral atrophy, is a prominent imaging finding in individuals with FXTAS. The study provides the first systematic evidence of differential miRNA expression changes in FXTAS blood samples. Although further studies are necessary to better characterize the miRNA function in FXTAS disorder, our results suggest that they might contribute to its pathogenesis. 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I.</au><au>Rodriguez‐Revenga, L.</au><au>Madrigal, I.</au><au>Torres‐Silva, F.</au><au>Mateu‐Huertas, E.</au><au>Lizano, E.</au><au>Friedländer, M. R.</au><au>Martí, E.</au><au>Estivill, X.</au><au>Milà, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MicroRNA expression profiling in blood from fragile X‐associated tremor/ataxia syndrome patients</atitle><jtitle>Genes, brain and behavior</jtitle><addtitle>Genes Brain Behav</addtitle><date>2013-08</date><risdate>2013</risdate><volume>12</volume><issue>6</issue><spage>595</spage><epage>603</epage><pages>595-603</pages><issn>1601-1848</issn><eissn>1601-183X</eissn><coden>GBBEAO</coden><abstract>Fragile X‐associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder associated with FMR1 gene premutation alleles (55–200 CGG repeats). Fragile X‐associated tremor/ataxia syndrome clinical core features include action tremor, gait ataxia, cognitive deficits progressing to dementia, and frequently parkinsonism. Although the pathogenic molecular mechanism of FXTAS is not completely understood, the restriction of the phenotype to the FMR1 premutation range has given rise to a model based on a RNA toxic gain‐of‐function. Since the identification of the first microRNAs (miRNAs) and their role in normal development, several studies have associated them with neurodegenerative diseases such as Parkinson, Alzheimer and Huntington diseases, suggesting that they play a key role in brain development, as well as in its morphogenesis. Herein, we present the characterization of miRNA expression profiles in FXTAS male patients using deep sequencing‐based technologies and microarray technology. Deep sequencing analysis evidenced 83 miRNAs that were significantly deregulated whereas microarray analysis showed 31. When comparing these results, 14 miRNAs were found deregulated in FXTAS patients. MiR‐424 and miR‐574‐3p showed significant fold change adjusted P‐values in both platforms in FXTAS patients. MiR‐424 has been founded substantially and specifically enriched in human cerebral cortical white matter of Alzheimer disease patients, which, together with cerebral atrophy, is a prominent imaging finding in individuals with FXTAS. The study provides the first systematic evidence of differential miRNA expression changes in FXTAS blood samples. Although further studies are necessary to better characterize the miRNA function in FXTAS disorder, our results suggest that they might contribute to its pathogenesis. High‐throughput technologies have revealed 14 miRNAs deregulated in blood FXTAS samples relative to controls.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>23790110</pmid><doi>10.1111/gbb.12061</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult and adolescent clinical studies
Aged
Ataxia
Biological and medical sciences
Blood
Case-Control Studies
Cerebellar Diseases - diagnosis
Cerebellar Diseases - genetics
Expression profile
FMR1 gene
Fragile X Mental Retardation Protein - genetics
FXTAS
Gene Expression Profiling
Genes
High-Throughput Nucleotide Sequencing
high‐throughput technologies
Humans
IsomiR
Male
Medical sciences
MicroRNAs - blood
MicroRNAs - chemistry
Middle Aged
miRNAs
mitochondrial dysfunction
neurodegeneration
Oligonucleotide Array Sequence Analysis
Organic mental disorders. Neuropsychology
oxidative stress
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Sequence Analysis, DNA
trimming variants
title MicroRNA expression profiling in blood from fragile X‐associated tremor/ataxia syndrome patients
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