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Comparison of gene expression profiles between wild-type and Kdm7a mutan embryos

ABSTRACT: Comparison of gene expression profiles between wild-type and Kdm7a mutan embryos

PROVIDER: PRJNA550267 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9586750_1.fastq.gz	Fastqsanger.gz
	SRR9586750_2.fastq.gz	Fastqsanger.gz
	SRR9586760_1.fastq.gz	Fastqsanger.gz
	SRR9586760_2.fastq.gz	Fastqsanger.gz
	SRR9586751_1.fastq.gz	Fastqsanger.gz

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Comparison of gene expression profiles between wild-type and Kdm7a mutan embryos

Project description:Temporal and spatial colinear expression of Hox genes determines the specification of positional identities of the embryo. Post-translational modifications of histones contribute to transcriptional regulation, and are required for proper control of biological processes, including differentiation and development. Lysine demethylase 7A (Kdm7a) demethylates lysine 9 di-methylation of histone H3 (H3K9me2) and participates in transcriptional activation of developmental genes. However, the role of Kdm7a during mouse embryonic development remains to be elucidated. Here, we show that Kdm7a-/- mice exhibit anterior homeotic transformation of the axial skeleton (i.e. an increase in the number of presacral elements). Importantly, posterior Hox genes (caudally from Hox9) are specifically down-regulated in Kdm7a-/- embryos, which correlate with increased levels of H3K9me2. Taken together, these data suggest that Kdm7a is able to control transcription of posterior Hox genes, likely through its demethylating activity, and thereby regulating anterior-posterior development in mice.

2019-12-23 | GSE133187 | GEO

Comparison of wild-type and Kdm7a mutan embryos

Project description:Comparison of wild-type and Kdm7a mutan embryos

| PRJNA550265 | ENA

Comparison of genome-wide distribution of histone modifications (H3K4me3, H3K9me2, H3K27me2, and H3K27me3) between wild-type and Kdm7a mutant embryos

2019-12-23 | GSE133188 | GEO

Comparison of genome-wide distribution of histone modifications (H3K4me3, H3K9me2, H3K27me2, and H3K27me3) between wild-type and Kdm7a mutant embryos

Project description:Comparison of genome-wide distribution of histone modifications (H3K4me3, H3K9me2, H3K27me2, and H3K27me3) between wild-type and Kdm7a mutant embryos

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Illumina Microarray of MRC5 cell with or without KDM7A-DT overexpression

Project description:KDM7A Divergent Transcript (KDM7A-DT) is a stress-induced lncRNAs. In our previous studies, KDM7A-DT showed the most robust cellular phenotype alteration and a significant TP53-dependency upon oxidative and oncogenic stress induction. To investigate the functional roles of KDM7A-DT, we first performed overexpression experiments using fibroblasts. We found that MRC5 cells overexpressing KDM7A-DT escaped cell cycle proliferation and long-term survival ability and were associated with a distinct stress-related morphology (enlarged and flattened cells) compared to cells expressing just the vehicle control. To examine the effects of KDM7A-DT overexpression on the transcriptome, we performed a differential expression gene (DEG) analysis comparing a group of four independent biological replicates of MRC5 overexpressing KDM7A-DT to a group of samples from control cells.

2023-05-01 | E-MTAB-11819 | biostudies-arrayexpress

Pair wise comparison between STD-MO and klf4-MO embryos

Project description:Direct pairwise comparison of the differential expression patterns between embryos injected with Standard olignucleotide morpholinoes and those injected with an anti-klf4 morpholino. Keywords: Direct pairwise comparison

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Comparison of wild-type and Kdm7a mutan embryos

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

2019-12-23 | GSE133189 | GEO

The Lysine Demethylase KDM7A Regulates Immediate Early Genes in Neurons.

Project description:Lysine demethylase KDM7A removes histone modifications H3K9me1/2 and H3K27me1/2. KDM7A plays critical roles in gene expression and contribute to biological processes including tumorigenesis, metabolism, and embryonic development. However, the functions of KDM7A in mammalian nervous system are still poorly explored. In this study, functional roles of KDM7A are comprehensively investigated in neuronal cells by applying CUT&Tag-seq, RNA-seq and mice models. Knockdown of Kdm7a in N2A cells result in the alteration of histone modifications near transcription start sites (TSSs) and the expression changes of a large number of genes. In particular, the expression of immediate early genes (IEGs), a series of genes maintaining the function of the nervous system and associating with neurological disorders, are significantly decreased upon Kdm7a knockdown. Furthermore, in vivo knockdown of Kdm7a in dentate gyrus (DG) neuron of mice hippocampus, via Adeno-associated virus (AAV)-based stereotaxic microinjection, led to a significant decrease of the expression of c-Fos, a marker of neuron activity. Behavior assays in mice further revealed that Kdm7a knockdown in hippocampus repress neuron activity, which leading to impairment of emotion and memory. Collectively, the study reveals that KDM7A affects neuron functions by regulating IEGs, which may provide new clues for understanding epigenetic mechanisms in neurological disorders.

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Pair wise comparison between STD-MO and klf4-MO embryos

2010-05-25 | E-GEOD-8656 | biostudies-arrayexpress

Illumina Microarray of T47D cell with or without KDM7A-DT silencing under normal and oxidative stress conditions

Project description:KDM7A Divergent Transcript (KDM7A-DT) is a stress-induced lncRNAs. In our previous studies, KDM7A-DT showed the most robust cellular phenotype alteration and a significant TP53-dependency upon oxidative and oncogenic stress induction. Since about 50% of human breast cancers have mutant p53 and associated genetic alterations, it is essential to determine what effect a mutant p53 would have on acquired pro-oncogenic functions of KDM7A-DT. In these experiments, we used four antisense LNA Gapmer sequences designed by Exiqon (Vedbaek, Denmark). One of these was a negative control, while the other 3 were designed to target the end of the transcript representing the full-length lncRNA KDM7A-DT (lncRNA; GRCh38/hg38, chr7: 140,178,951-140,179,640). To test the effect of KDM7-DT in the context of mutant p53, we selected the p53-negative luminal BC cells T47D. For each of the LNA gapmers, we utilized 3 technical replicates across two main experimental conditions (normal vs. oxidative stress induced via 30 mins of 0.2 mM H2O2 treatment). Overall, we measured the signals for 47,323 Illumina array probes across 24 individual experiments (4 LNA gapmers * 3 technical replicates * 2 main experimental conditions).

2023-05-01 | E-MTAB-11818 | biostudies-arrayexpress

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