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Homo sapiens

ABSTRACT: MiR-129-5p downregulates HuD expression impairing neuritogenesis in Amyotrophic Lateral Sclerosis

PROVIDER: PRJNA369538 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5223040.fastq.gz	Fastqsanger.gz
	SRR5223041.fastq.gz	Fastqsanger.gz
	SRR5223042.fastq.gz	Fastqsanger.gz
	SRR5223043.fastq.gz	Fastqsanger.gz
	SRR5223044.fastq.gz	Fastqsanger.gz

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MiR-129-5p downregulates HuD expression impairing neuritogenesis in Amyotrophic Lateral Sclerosis

Project description:Amyotrophic lateral sclerosis (ALS) involves the degeneration of brain and spinal cord motor neurons. Mutations in Superoxide Dismutase 1 (SOD1), TAR DNA-binding protein 43 (TDP-43) and Fused-in-Sarcoma (FUS) account for 20-30 % of the familial ALS (fALS) cases. The RNA-binding proteins TDP-43 and FUS function in mRNA and miRNA biogenesis. MiRNAs are required for survival of neurons and deregulation of miRNA expression has been reported in several neurodegenerative disorders. Here, we report the dysregulation of DROSHA, DGCR8, and DICER in human neuroblastoma SH-SY5Y cells expressing the ALS-associated SOD1(G93A) mutant protein. MiRNA profiling in SH-SY5Y/SOD1(G93A) cells and transgenic SOD1(G93A) mice revealed upregulation of miR-129-5p at the early stage of disease. Moreover, miR-129-5p is also upregulated in lymphocytes of sporadic ALS patients. We demonstrate that miR-129-5p targets ELAVL4/HuD mRNA by binding to its 3’ UTR, which reduces HuD expression and impairs differentiation and neurite outgrowth. Conversely, treatment with an antagomir or complementation with HuD protein restores neuritogenesis. Collectively, our study identifies miR-129-5p and HuD as key regulators of neuronal differentiation and as potential therapeutic targets for ALS.

2018-02-01 | GSE94379 | GEO

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Project description:Amyotrophic Lateral Sclerosis

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Project description:Sporadic Amyotrophic Lateral Sclerosis

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Project description:Sporadic Amyotrophic Lateral Sclerosis

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Project description:Sporadic Amyotrophic Lateral Sclerosis Study

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Mutant FUS and ELAVL4 (HuD) aberrant crosstalk in Amyotrophic Lateral Sclerosis

Project description:Mutant FUS and ELAVL4 (HuD) aberrant crosstalk in Amyotrophic Lateral Sclerosis

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Gene expression signatures in motor neuron disease fibroblasts reveal dysregulation of metabolism, hypoxia-response and RNA processing functions

Project description:Amyotrophic lateral sclerosis and primary lateral sclerosis are two syndromic variants within the motor neurone disease spectrum. Whilst primary lateral sclerosis is associated with loss of upper motor neurons and a more benign disease course up to 17yrs, amyotrophic lateral sclerosis is caused by loss of both upper and lower motor neurons and has an average disease course of 2-3 years. The majority of cases are sporadic, thereby limiting the availability of cellular models for investigating pathogenic disease mechanisms. The aim of the present study was to evaluate fibroblasts as a cellular model for sporadic amyotrophic lateral sclerosis and primary lateral sclerosis, to establish whether disease-related dysregulated biological processes recapitulate those seen in the central nervous system and to elucidate pathways that distinguish between the two disease phenotypes. We used microarray analysis to determine the differences in gene expression between fibroblasts derived from skin biopsies taken from sporadic amyotrophic lateral sclerosis and primary lateral sclerosis neurologically normal human controls

2014-04-16 | E-GEOD-56808 | biostudies-arrayexpress

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Project description:Study of Irish Amyotrophic Lateral Sclerosis (SIALS)

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