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DNA Methylation Study of Huntington's Disease and Motor Progression in Three Species

ABSTRACT: DNA Methylation Study of Huntington's Disease and Motor Progression in Three Species

PROVIDER: PRJNA612720 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11342601.fastq.gz	Fastqsanger.gz
	SRR11342602.fastq.gz	Fastqsanger.gz
	SRR11342603.fastq.gz	Fastqsanger.gz
	SRR11342604.fastq.gz	Fastqsanger.gz
	SRR11342605.fastq.gz	Fastqsanger.gz

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3′ sequencing from human Huntington's disease and control motor cortex and cerebellum.

Project description:Purpose: We applied polyA site sequencing (Passeq) to human Huntington's disease and control motor cortex and cerebellum to test if any genes change 3′UTR isoforms abundance. Methods: 3′ sequencing was performed on 6 motor cortices from grade 1 Huntington's patient brains, 4 motor cortices from grade 2 Huntington's patient brains, and 5 motor cortices from control brains. Cerebellum samples included 9 cerebella from grade 2-3 Huntington's patient brains, and 7 cerebella from control brains. To verify HTT isoforms in mice, sequencing was performed on 5 Q140 mouse striata and 3 wild-type mouse striata. Results: We report 11% of genes from Huntington's disease patient motor cortex exhibit a change in at least one of their 3′UTR isoforms, commensurate with the 11% of genes which show different total expression in HD motor cortex versus control. In contrast, gene isoform and expression changes are minimal (<5%) in Huntington's disease cerebellum versus controls. In the motor cortex, we show isoform and gene expression differs between between grade 1 and grade 2 brains. We identify a novel isoform of huntingtin mRNA which is conserved in wild-type and Huntington's model mice. Conclusions: This is the first study characterizing widespread alterations in 3′UTR isoform abundance in Huntington's disease. Alterations in isoform abundance may affect mRNA metabolism in Huntington's disease brains.

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DNA Methylation Study of Huntington's Disease and Motor Progression in Three Species

Project description:This SuperSeries is composed of the SubSeries listed below.

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Project description:In this study we investigated the suitability of blood to identify HD transcriptomic biomarkers, validated the outcome in an independent cohort and derived a first empiric panel of biomarkers capable of predicting HD motor scores. Finally we examined whether patient gene expression profiles could provide information about HD affected biological pathways. Examination of differentially expressed genes in peripheral whole blood using linear modelling of gene expression data (3 DGE) against UHDRS total motor scores of Huntington's Disease mutation carriers and controls.

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3′ sequencing from human Huntington's disease and control motor cortex and cerebellum.

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Project description:Analysis of gene expression differences in three types of mouse motor neurons: (1) those harvested from E13.5 mouse embryos; (2) those derived from embryonic stem cells by directed differentiation; and (3) those made from mouse embryonic fibroblasts by transcription factor reprogramming. Hb9::GFP+ mouse motor neurons were obtained by three methods [(1) dissection of Hb9::GFP-transgenic E13.5 mouse embryo spinal cord; (2) directed differentiation of an Hb9::GFP-transgenic mouse embryonic stem cell line, V6.5; (3) reprogramming of Hb9::GFP-transgenic mouse embryonic fibroblasts by overexpression of 10 transcription factors]. Each type of motor neuron was purified by FACS and harvested in Trizol. Total RNA was purified and prepared for hybridization onto Illumina MouseRef-8.

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CMS121 partially attenuates disease progression in mouse models of Huntington's disease

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Global gene expression analysis of three different types of mouse motor neurons

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