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MicroRNA profiling by high-throughput sequencing in the substantia nigra and striatum of Multiple System Atrophy (MSA) transgenic mice and wild type controls

ABSTRACT: microRNA profiling by high-throughput sequencing in the substantia nigra and striatum of Multiple System Atrophy (MSA) transgenic mice and wild type controls

PROVIDER: PRJEB11537 | ENA |

REPOSITORIES: ENA

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microRNA profiling by high-throughput sequencing in the substantia nigra and striatum of Multiple System Atrophy (MSA) transgenic mice and wild type controls

Project description:Multiple system atrophy (MSA) is a fatal rapidly progressive Ia-synucleinopathy, characterized by prominent Ia-synuclein accumulation in oligodendrocytes. In this study we investigated miRNA expression in the substantia nigra and striatum of MSA transgenic mice (Tg(Plp1-SNCA)1Haa) and wild type controls. This forms part of a larger study in which we investigated miRNA-mRNA regulatory network in substantia nigra and striatum of MSA transgenic mice in pre-motor stage of neurodegenration.

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Project description:We report RNA sequencing results of human substantia nigra and putamen samples from Parkinson's disease patients and controls. Each substantia nigra sample is the result of pooling brain tissue from two individuals with the same , while each putamen sample is the result of pooling brain tissue from three individuals. We found 354 differentially expressed genes (DEGs) in the SN of PD patients compared to age-matched controls, while we observed 261 DEGs in the putamen samples. The top-enriched pathways from the SN were associated with “protein folding” and “neurotransmitter transport”, and the putamen DEGs with “synapse organization”. In summary, our data confirms the key role of protein folding and neuronal degeneration in the pathology of PD, and highlights new genes and pathways that have not yet been explored in the context of PD.

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