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H2AZ Orchestrates Neural Progenitor Cell Proliferation and Differentiation via Setd2-mediated H3K36me3 Modification [RNA-seq]

ABSTRACT: Purpose:To gain a deeper insight into how H2AZ regulates embryonic neurogenesis, RNA-sequencing (RNA-seq) was performed to analyze the genome-wide changes by H2AZ deletion at E12. Methods: Total RNA was extracted from E12 telencephalic tissue of H2AZcKO and H2AZfl/fl mice. Then total RNA was quality controlled and quantified using an Agilent 2100 Bioanalyzer. After converting to cDNA and building library, high-throughput sequencing was performed using the Illumina HiSeq 2500 platform in Annoroad Genomics. Results: Approximately approximately one thousand transcripts showed differential expression between the H2AZfl/fl and H2AZcKO brain, with a fold change ≥1.5 and p value <0.05. Gene ontology (GO) analysis showed that the down-regulated genes were enriched in the terms related to transcription and cortex development, such as regulation of transcription, cerebellar cortex formation, forebrain development, and cerebellum development. Up-regulated genes showed a significant enrichment of terms involved in negative regulation of cell differentiation, neuron migration, and cognition. These results reflected the importance of H2AZ in cortical development. Conclusions: We conclude that RNA-seq based transcriptome characterization would provide a framework for understanding how a disruption in the H2AZ gene may contribute to cortical development.

ORGANISM(S): Mus musculus

PROVIDER: GSE99347 | GEO | 2017/05/29

SECONDARY ACCESSION(S): PRJNA388170

REPOSITORIES: GEO

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Chromatin immunopreciptiation of H2AZ in mouse embryonic stem cells and neural precursor cells

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Project description:Purpose: To gain futher insight into how GSDMD regulates the proliferative of neural progenitors ,RNA-seq was used to analyze the genome-wide changes resulting from the cerebral cortices of E13 GSDMD conditional knock out mice and littermate wild-type. Methods: Total RNA from E13 telencephalic tissue of wild-type(WT) and Gsdmdfl/fl;Nestin-Cre mice was extracted. Specifically, Agilent 2100 Bioanalyze was used to quality controlled and quantified. then, total RNA was converted to cDNA and bound the library. RNA-sequencing analysis was used by the Illumina HiSeq 2500 platform in Annoroad Genomics Results: Approximately one thousand transcripts showed differential expression between the wild-type(WT) and Gsdmdfl/fl;Nestin-Cre mice brain cortex, with a fold change ≥1.5 and p value <0.05.Geneontology analysis of the up-regulated genes showed obvious enrichment of biological processes related to development and proliferation.The down-regulated genes exhibited enrichment of biological processes related to the negative regulation of cell proliferation and developmental process. These results reflected GSDMD plays a role in cortex development. Conclusions: RNA-seq based transcriptome characterization would provide a overall understanding how GSDMD gene contribute to brain cortical development.

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H2AZ extended acidic patch is necessary for formation specialized chromatin states in ESCs [RNA-Seq]

Project description:The H2A variant H2AZ is essential for embryonic development and for proper execution of developmental gene expression programs in embryonic stem cells (ESCs). Divergent regions in H2AZ are likely key for its functional specialization, but we know little about how these differences contribute to chromatin regulation. Here, we show that the extended acidic patch, specifically the three divergent residues in the C-terminal docking domain, is necessary for lineage commitment during ESC differentiation and proper execution of gene expression programs during ESC differentiation. Surprisingly, disruption of the acidic patch domain has a distinct consequence on cellular specification compared to H2AZ depletion. This is consistent with differences in gene expression profiles of H2AZ M-bM-^@M-^Sdepleted and acidic patch (AP) mutant ESCs during early lineage commitment. Interestingly, the distinct consequence of AP mutant expression on gene regulation is coincidence with an altered destabilized chromatin state and high chromatin mobility dependent on active transcription. Collectively, our data shows that the divergent residues within the acidic patch domain are key structural determinants of H2AZ function and links chromatin structure and dynamics with gene regulation and cell fate specification. H2AZ extended acidic patch was mutated, or H2AZ was KD in mouse embryonic stem cells and RNA-Seq analysis was performed on the resulting cultures. Characterization of H2AZ-WT and -AP3-mutant binding specificities were performed by ChIP-Seq.

2013-09-23 | E-GEOD-40064 | biostudies-arrayexpress

H2AZ extended acidic patch is necessary for formation specialized chromatin states in ESCs [ChIP-Seq]

2013-09-23 | E-GEOD-40063 | biostudies-arrayexpress

H2AZ extended acidic patch is necessary for formation specialized chromatin states in ESCs [RNA-Seq]

Project description:The H2A variant H2AZ is essential for embryonic development and for proper execution of developmental gene expression programs in embryonic stem cells (ESCs). Divergent regions in H2AZ are likely key for its functional specialization, but we know little about how these differences contribute to chromatin regulation. Here, we show that the extended acidic patch, specifically the three divergent residues in the C-terminal docking domain, is necessary for lineage commitment during ESC differentiation and proper execution of gene expression programs during ESC differentiation. Surprisingly, disruption of the acidic patch domain has a distinct consequence on cellular specification compared to H2AZ depletion. This is consistent with differences in gene expression profiles of H2AZ –depleted and acidic patch (AP) mutant ESCs during early lineage commitment. Interestingly, the distinct consequence of AP mutant expression on gene regulation is coincidence with an altered destabilized chromatin state and high chromatin mobility dependent on active transcription. Collectively, our data shows that the divergent residues within the acidic patch domain are key structural determinants of H2AZ function and links chromatin structure and dynamics with gene regulation and cell fate specification.

2013-09-23 | GSE40064 | GEO

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