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Genome-wide gene expression prolifing post GNL3 knockdown in human neural progenitor cells

ABSTRACT: Genome-wide gene expression prolifing post GNL3 knockdown in human neural progenitor cells

PROVIDER: PRJNA634131 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11819878_1.fastq.gz	Fastqsanger.gz
	SRR11819878_2.fastq.gz	Fastqsanger.gz
	SRR11819879_1.fastq.gz	Fastqsanger.gz
	SRR11819879_2.fastq.gz	Fastqsanger.gz
	SRR11819880_1.fastq.gz	Fastqsanger.gz

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Genome-wide gene expression prolifing post GNL3 knockdown in human neural progenitor cells

Project description:We used two siRNAs to knock down GNL3 in human neural progenitor cells which were derived from normal human induced pluripotent stem cells (ATCC, ACS-1011). GNL3 knockdown experiments were done in three biological replicates. Total RNA was extracted from GNL3 knockdown and control groups for RNA sequencing (Illumina Hiseq2000, paired-end 100 bp). Genes that affected by both siRNAs were considered differentially expressed genes between GNL3 knockdown and control groups (adjusted P value < 0.05). Using Gene Ontology and KEGG pathway analysis, we found that those differentially exrepssed genes were mainly related to immune response, response to cytokine, cell cycle, and p53 signaling pathway.

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Project description:Background: One of the strongest identified risk factors for major psychiatric illness is a chromosomal translocation directly disrupting the DISC1 gene, which is observed in members of a large Scottish family. Although DISC1 is known to function through a variety of molecular pathways, no global assessment of the molecular consequences of cellular DISC1 perturbation has been carried out to date. Methods: Predicted effects of the t(1;11)(q42;q14) translocation on DISC1 expression were modelled in neural progenitor cells derived from human fetal cortex using RNA interference (RNAi). Downstream effects on the cellular transcriptome were assessed by microarray. The reproducibility of individual gene expression changes was tested in repeat experiments by quantitative PCR.Results: A total of 54 genes were differentially expressed between the DISC1 and control siRNA conditions at a false discovery rate (FDR) â¤ 0.05 in the primary experiment. Differentially expressed genes were significantly over-represented in Gene Ontology terms relating to the cell cycle, but included genes involved in a variety of other functions. Several genes showing reproducible differences in gene expression have been previously implicated in psychiatric disorders. Most consistent gene expression differences were seen for CCND2, MEG3, SPOCK2 and GABRA5. Total RNA extracted from human neural progenitor cells manipulated with either of two siRNAs: control siRNA or siRNA targeting DISC1 . 3 replicates per group. Genome wide transcript levels were then measured using gene expression microarrays.

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