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An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome

ABSTRACT: An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome

PROVIDER: PRJNA991612 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25147507_1.fastq.gz	Fastqsanger.gz
	SRR25147507_2.fastq.gz	Fastqsanger.gz
	SRR25147508_1.fastq.gz	Fastqsanger.gz
	SRR25147508_2.fastq.gz	Fastqsanger.gz
	SRR25147509_1.fastq.gz	Fastqsanger.gz

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An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome [miRNA-seq]

Project description:Adults and children with the 22q11.2 Deletion Syndrome demonstrate cognitive, social and emotional impairments and high risk for schizophrenia. Work in mouse model of the 22q11.2 deletion provided compelling evidence for abnormal expression and processing of microRNAs. A major transcriptional effect of the microRNA dysregulation is up-regulation of Emc10, a component of the ER membrane complex, which promotes membrane insertion of a subset of polytopic and tail-anchored membrane proteins. We previously uncovered a key contribution of EMC10 in mediating the behavioral phenotypes observed in 22q11.2 deletion mouse models. Here we show that expression and processing of miRNAs is abnormal and EMC10 expression is elevated in neurons derived from 22q11.2 deletion carriers. Reduction of EMC10 levels restores defects in neurite outgrowth and calcium signaling in patient neurons. Furthermore, antisense oligonucleotide administration and normalization of Emc10 in the adult mouse brain not only alleviates cognitive deficits in social and spatial memory but remarkably sustains these improvements for over two months post injection, indicating its therapeutic potential. Broadly, our study integrates findings from both animal models and human neurons to elucidate the translational potential of modulating EMC10 levels and downstream targets as a specific venue to ameliorate disease progression in 22q11.2 Deletion Syndrome.

2025-03-17 | GSE236594 | GEO

An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome [RNA-seq]

2025-03-17 | GSE236595 | GEO

An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome [RNA-seq]

Project description:An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome [RNA-seq]

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An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome [miRNA-seq]

Project description:An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome [miRNA-seq]

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LINE-1 antisense oligonucleotide ameliorate HGPA and WRN aging phenotype.

Project description:LINE-1 antisense oligonucleotide ameliorate HGPA and WRN aging phenotype.

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An antisense oligonucleotide-based strategy to ameliorate cognitive dysfunction in the 22q11.2 Deletion Syndrome

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

2025-03-17 | GSE236596 | GEO

Antisense oligonucleotide therapy for calmodulinopathy

Project description:Antisense oligonucleotide therapy for calmodulinopathy

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Antisense oligonucleotide therapy for calmodulinopathy

Project description:Calmodulinopathies are rare inherited arrhythmia syndromes caused by dominant gain of function variants in one of three genes, CALM1, CALM2, and CALM3, which each encode the identical calmodulin (CaM) protein. We hypothesized that antisense oligonucleotide (ASO)-mediated depletion of an affected calmodulin gene would ameliorate disease manifestations, while the other two calmodulin genes would preserve CaM level and function. Here we tested this hypothesis using human induced pluripotent stem cell-derived cardiomyocyte (iPSC-CM) and mouse models of CALM1 pathogenic variants. Human CALM1F142L/+ iPSC-CMs exhibited prolonged action potentials, modeling congenital long QT syndrome. CALM1-depleting ASOs did not alter CaM protein level and normalized repolarization of CALM1F142L/+ iPSC-CMs. Similarly, an ASO targeting murine Calm1 depleted Calm1 transcript without affecting CaM protein level. This ASO alleviated drug-induced arrhythmia in CalmN98S/+ mice without causing observable toxicity. These results provide proof-of-concept that ASOs targeting individual calmodulin genes are potentially effective and safe therapies for calmodulinopathies.

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Liver proteome upon in vivo N-acetylgalactosamine-conjugated antisense oligonucleotide silencing of ceramide synthase 2

Project description:Mouse liver proteome was investigated upon in vivo mouse treatment with a N-acetylgalactosamine-conjugated antisense oligonucleotide engineered to silence ceramide synthase 2 specifically in hepatocytes in vivo. The data is a part of a study on the involvement of ceramide enzymatic machinery in cardiovasular disorders and its potential as a target for the disease treatment.

2023-05-10 | PXD025957 | Pride

Expression data from dosing an antisense oligonucleotide in mice I

Project description:We used microarrays to globally profile the gene expression changes observed in liver after 3 days when dosing an antisense oligonucleotide in mice

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