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EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [ChIP-Seq]

ABSTRACT: EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [ChIP-Seq]

PROVIDER: PRJNA510452 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12589138.fastq.gz	Fastqsanger.gz
	SRR12589139.fastq.gz	Fastqsanger.gz
	SRR12589140.fastq.gz	Fastqsanger.gz
	SRR12589141.fastq.gz	Fastqsanger.gz
	SRR12589142.fastq.gz	Fastqsanger.gz

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EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons

Project description:EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons

| PRJNA510451 | ENA

EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [ATAC-Seq]

Project description:EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [ATAC-Seq]

| PRJNA510453 | ENA

EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [RNA-Seq]

Project description:EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [RNA-Seq]

| PRJNA510454 | ENA

EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [ChIP-Seq]

Project description:In this work, we used an integrative, multi-omics approach and systems-level analysis to generate a mechanistic disease model for EOFAD in an hiPSC-derived neuron model system.

2020-11-13 | GSE123884 | GEO

EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [ATAC-Seq]

2020-11-13 | GSE123997 | GEO

EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons [RNA-Seq]

2020-11-13 | GSE123891 | GEO

EOFAD-causing mutations in psen1 orchestrate dedifferentiation through remodeling of the chromatin landscape in hiPSC-derived neurons

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

2020-11-13 | GSE123998 | GEO

Expression profile of microglia from Egln3–/–, App-Psen1 and App-Psen1

Project description:Microglia was isolated from Egln3–/–; App-Psen1 and App-Psen1 mice using flow cytometry to identify changes in their expression profile and phenotype associated with the absence of Prolyl Hydroxylase 3 (PHD3).

2025-04-15 | GSE97424 | GEO

Gene expression profile of sporadic and PSEN1 early-onset Alzheimer’s Disease

Project description:Alzheimer’s disease (AD) is the most common neurodegenerative dementia. Around 10% of cases present an age of onset before 65 years-old, which in turn can be divided in monogenic or familial AD (FAD) and sporadic early-onset AD (EOAD). Mutations in PSEN1, PSEN2 and APP genes have been linked with FAD. The aim of our study was to describe the brain whole-genome RNA expression profile of the posterior cingulate area in EOAD and FAD caused by PSEN1 mutations (FAD-PSEN1). 14 patients (7 EOAD and 7 FAD-PSEN1) and 7 neurologically healthy controls were selected and samples were hybridized in a Human Gene 1.1 microarray from Affymetrix. When comparing controls with EOAD and controls with FAD-PSEN1, we found 3183 and 3351 differentially expressed genes (DEG) respectively (FDR corrected p<0.05). However, any DEG was found in the comparison of the two groups of patients. Microarrays were validated through quantitative-PCR of 17 DEG. In silico analysis of the DEG revealed an alteration in biological pathways related to calcium-signaling, axon guidance and long-term potentiation (LTP), among others, in both groups of patients. These pathways are mainly related with cell signalling cascades, synaptic plasticity and learning and memory processes. In conclusion, the altered biological final pathways in EOAD and FAD-PSEN1 are highly coincident. Also, the findings are in line with those previously reported for late-onset AD (LOAD, onset >65 years-old), which implies that the consequences of the disease at the molecular level are similar in the final stages of the disease. 21 Samples were analyzed: 7 controls, 7 Early-onset Alzheimer's disease (AD) patients and 7 early-onset AD genetically determined by a mutation in PSEN1 gene.

2015-01-20 | E-GEOD-39420 | biostudies-arrayexpress

β2-adrenergic agonists rescue lysosome acidification and function in PSEN1 deficiency by reversing defective ER to lysosome delivery of ClC-7

Project description:Lysosomal dysfunction is considered pathogenic in Alzheimer Disease (AD). Loss of Presenilin-1(PSEN1) function causing early onset AD impedes acidification via defective vATPase V0a1 subunit delivery to lysosomes. We report that isoproterenol and related β2-adrenergic agonists re-acidify lysosomes in PSEN1 KO cells and fibroblasts from PSEN1 familial AD(FAD) patients, restores lysosomal calcium homeostasis and proteolysis, and reverses impaired autophagy flux. We identify a novel rescue mechanism involving PKA-mediated facilitated delivery of ClC-7 to lysosomes, which stimulates chloride influx and reverses markedly lowered Cl- content of PSEN1 KO lysosomes. Notably, PSEN1 loss-of-function impedes ER-to-lysosome delivery of ClC-7, thus accounting for lysosomal Cl- deficits that compound pH deficits due to deficient vATPase function. Transcriptomics of PSEN1-deficient cells reveal strongly down-regulated ER-to-lysosome transport pathways and reversibility by isoproterenol. Our findings uncover a broadened PSEN1 role in lysosomal ion homeostasis and novel pH modulation of lysosomes through β-adrenergic regulation of ClC-7, which can be therapeutically modulated.

2020-02-29 | GSE136894 | GEO

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