Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: E-GEOD-48962
PROVIDER: PRJNA212427 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR935854.fastq.gz | Fastqsanger.gz | |||
| SRR935855.fastq.gz | Fastqsanger.gz | |||
| SRR935856.fastq.gz | Fastqsanger.gz | |||
| SRR935857.fastq.gz | Fastqsanger.gz | |||
| SRR935858.fastq.gz | Fastqsanger.gz |
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Project description:Targeting H3K4 methylation as a therapeutic strategy for Huntington's disease (RNA-seq)
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Project description:Targeting H3K4 methylation as a therapeutic strategy for Huntington's disease (ChIP-seq)
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Project description:Transcriptional dysregulation is an early feature of Huntington's disease (HD). We observed gene-specific changes in H3K4me3 at transcriptionally repressed promoters in R6/2 mouse and human HD brain. Genome-wide analysis showed a novel chromatin signature for this mark. Reducing the levels of the H3K4 demethylase SMCX/Jarid1c in primary neurons reversed down-regulation of key neuronal genes caused by mutant Huntingtin (Htt) expression. Finally, reduction of SMCX/Jarid1c in primary neurons from BACHD mice or the single Jarid1 in a Drosophila HD model was protective. Therefore, targeting this epigenetic signature may be an effective strategy to ameliorate the consequences of HD. ChIP-seq for H3K4me3 in wild type and R6/2 cortex and striatum at 8 and 12 weeks.
2013-07-18 | E-GEOD-48960 | biostudies-arrayexpress
Project description:Transcriptional dysregulation is an early feature of Huntington's disease (HD). We observed gene-specific changes in H3K4me3 at transcriptionally repressed promoters in R6/2 mouse and human HD brain. Genome-wide analysis showed a novel chromatin signature for this mark. Reducing the levels of the H3K4 demethylase SMCX/Jarid1c in primary neurons reversed down-regulation of key neuronal genes caused by mutant Huntingtin (Htt) expression. Finally, reduction of SMCX/Jarid1c in primary neurons from BACHD mice or the single Jarid1 in a Drosophila HD model was protective. Therefore, targeting this epigenetic signature may be an effective strategy to ameliorate the consequences of HD.
2013-07-18 | GSE48960 | GEO
Project description:Transcriptional dysregulation is an early feature of Huntington's disease (HD). We observed gene-specific changes in H3K4me3 at transcriptionally repressed promoters in R6/2 mouse and human HD brain. Genome-wide analysis showed a novel chromatin signature for this mark. Reducing the levels of the H3K4 demethylase SMCX/Jarid1c in primary neurons reversed down-regulation of key neuronal genes caused by mutant Huntingtin (Htt) expression. Finally, reduction of SMCX/Jarid1c in primary neurons from BACHD mice or the single Jarid1 in a Drosophila HD model was protective. Therefore, targeting this epigenetic signature may be an effective strategy to ameliorate the consequences of HD. mRNA-seq in wild type and R6/2 cortex and striatum at 8 and 12 weeks.
2013-07-18 | E-GEOD-48962 | biostudies-arrayexpress
Project description:Transcriptional dysregulation is an early feature of Huntington's disease (HD). We observed gene-specific changes in H3K4me3 at transcriptionally repressed promoters in R6/2 mouse and human HD brain. Genome-wide analysis showed a novel chromatin signature for this mark. Reducing the levels of the H3K4 demethylase SMCX/Jarid1c in primary neurons reversed down-regulation of key neuronal genes caused by mutant Huntingtin (Htt) expression. Finally, reduction of SMCX/Jarid1c in primary neurons from BACHD mice or the single Jarid1 in a Drosophila HD model was protective. Therefore, targeting this epigenetic signature may be an effective strategy to ameliorate the consequences of HD.
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Project description:Huntington's disease (HD) is a devastating neurodegenerative disorder caused by the expansion of CAG repeats in the huntingtin (HTT) gene. Recent advances in gene editing technologies, such as CRISPR/CasRx, have opened new avenues for therapeutic interventions. In this study, we explored the efficacy of CRISPR/CasRx, which can specifically and accurately digest single-stranded RNA and down-regulate the expression of related genes, in targeting the HTT mRNA and its potential as a treatment strategy for HD. Our results showed that CRISPR/CasRx could significantly down-regulate HTT mRNA in different models, including human embryonic kidney (HEK) 293T cells, HD140Q-knockin (HD 140Q-KI) mice at various disease stages, and Huntingtin knockin (HD-KI) pigs, and lead to a subsequent decrease in the expression of mutant Huntingtin (mHTT) protein. Moreover, this intervention could significantly ameliorate the neurological symptoms in HD 140Q-KI mice and HD-KI pigs. These findings highlight the effectiveness of the RNA-targeting CRISPR/CasRx as a potential therapeutic strategy for HD. Furthermore, the success of this approach provides valuable insights and novel avenues for the treatment of other genetic disorders caused by gene mutations.
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Project description:Human DNA methylation Beadchip v1.2 was used to profile n=475 samples from various brain regions of subjects with Huntington's disease and control samples. The main goal of the study was to relate Huntington's disease status to measures of epigenetic age acceleration based on DNA methylation data. To measure DNA methylation age, we used the epigenetic clock software described in Horvath S (n=2013) DNA methylation age of human tissues and cell types. Genome Biology.2013, 14:R115. DOI: 10.1186/10.1186/gb-2013-14-10-r115 PMID: 24138928.
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Project description:We've demonstrated that plants are resistant to the overexpression of polyglutamine (polyQ) extended proteins that cause protein aggregation and Huntington's disease in human cells. To investigate which proteins, maintain polyQ proteins correctly folded and avoid polyQ aggregates in plant cells. Our goal is to identify therapeutic candidate proteins that can potentially be used to treat Huntington's disease in human cell models.
2023-07-17 | PXD041001 | Pride
Project description:Aberrant expression of homeobox transcription factor HOXA9 is a central component of the leukemogenic program driven by diverse oncogenes. Here we show that HOXA9 overexpression in myeloid progenitor cells and pro-B cells leads to significant rearrangement of the epigenetic landscape with prominent emergence of cancer-specific de novo enhancers. HOXA9 acts as a pioneer factor at the de novo enhancers and is required for recruitment of transcription factor CEBP/ and the histone H3K4 methyltransferase MLL3/MLL4 complex. The HOXA9 function at de novo enhancers is distinct from its physiological role at enhancers during normal hematopoietic development. The MLL3/MLL4 complex physically interacts with HOXA9 and is required both for the active enhancer signatures at de novo enhancers and HOXA9/MEIS1-mediated leukemogenesis. The findings suggest that therapeutic targeting of HOXA9-dependent histone methylation could be an effective therapeutic strategy in acute leukemia associated with HOXA9 over expression.
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