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Genome-wide maps of chromatin state in E12.5 forebrain tissues

ABSTRACT: Genome-wide maps of chromatin state in E12.5 forebrain tissues

PROVIDER: PRJNA716529 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18053900.fastq.gz	Fastqsanger.gz
	SRR18053901_1.fastq.gz	Fastqsanger.gz
	SRR18053901_2.fastq.gz	Fastqsanger.gz
	SRR18053902_1.fastq.gz	Fastqsanger.gz
	SRR18053902_2.fastq.gz	Fastqsanger.gz

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Genome-wide maps of chromatin state in E12.5 forebrain tissues

Project description:The histone methyltransferase complex PRC2 is a crucial chromatin modifier and controls key steps in developmental transitions and cell fate choices. Mutations in PRC2 core subunits are found in Weaver syndrome with craniofacial defects, intellectual disabilities, and often macrocephaly, but its pathogenicity and molecular mechanism are unknown. Here, we examined the role of PRC2/Eed in neural stem/progenitor cells (NSPCs) during cortical neurogenesis We found that Eed is highly expressed in embryonic cerebral cortex and specific deletion of Eed in forebrain reduced the number of upper layer neurons but not deeper layer neurons and ultimately contributed to abnormal cortical development. In addition, our results revealed that PRC2/Eed regulated Hedgehog signaling pathway through activation of Gli3 not dependent on H3K27me3 but H3K27ac. What?s more, Increased Gli3 in NSPCs could reduce Gli1 expression and contribute to the defects of cortical neurogenesis caused by Eed deletion. Finally, Hedgehog signaling activation with small molecule SAG or genetic inactivation of Ptch1 could partially rescue the cortical neurogenesis defects in vivo after Eed depletion. In general, we identified a novel PRC2/Eed-Gli3-Gli1 regulatory axis that is critical for normal cortical neurogenesis. Our findings define a critical function for PRC2/Eed in cortical development and shed light on the genetic basis of intellectual disabilities of neural developmental disorders caused by PRC2/Eed mutation.

2022-09-21 | GSE169401 | GEO

RAPIDASH: Tag-free enrichment of ribosome-associated proteins reveals compositional dynamics in embryonic tissues, cancer cells, and macrophages - label-free MS RAPIDASH of E12.5 mouse forebrain

Project description:Ribosomes are emerging as direct regulators of gene expression, with ribosome-associated proteins (RAPs) allowing ribosomes to modulate translation. Nevertheless, a lack of technologies to enrich RAPs across sample types has prevented systematic analysis of RAP identities, dynamics, and functions. We have developed a label-free methodology called RAPIDASH to enrich ribosomes and RAPs from any sample. We applied RAPIDASH to mouse embryonic tissues and identified hundreds of potential RAPs, including DHX30 and LLPH, two forebrain RAPs important for neurodevelopment. We identified a critical role of LLPH in neural development linked to the translation of genes with long coding sequences. In addition, we showed RAPIDASH can identify ribosome changes in cancer cells. Finally, we characterized ribosome composition remodeling during immune cell activation and observed extensive changes post-stimulation. RAPIDASH has therefore enabled the discovery of RAPs in multiple cell types, tissues, and stimuli and is adaptable to characterize ribosome remodeling in several contexts. This dataset refers to label-free identification of RAPs enriched by RAPIDASH from E12.5 mouse forebrain, which is used in Figure 2A.

2025-09-22 | PXD054303 | Pride

RAPIDASH: Tag-free enrichment of ribosome-associated proteins reveals compositional dynamics in embryonic tissues, cancer cells, and macrophages - TMT MS RAPIDASH of E12.5 mouse limbs, forebrain, and liver

Project description:Ribosomes are emerging as direct regulators of gene expression, with ribosome-associated proteins (RAPs) allowing ribosomes to modulate translation. Nevertheless, a lack of technologies to enrich RAPs across sample types has prevented systematic analysis of RAP identities, dynamics, and functions. We have developed a label-free methodology called RAPIDASH to enrich ribosomes and RAPs from any sample. We applied RAPIDASH to mouse embryonic tissues and identified hundreds of potential RAPs, including DHX30 and LLPH, two forebrain RAPs important for neurodevelopment. We identified a critical role of LLPH in neural development linked to the translation of genes with long coding sequences. In addition, we showed RAPIDASH can identify ribosome changes in cancer cells. Finally, we characterized ribosome composition remodeling during immune cell activation and observed extensive changes post-stimulation. RAPIDASH has therefore enabled the discovery of RAPs in multiple cell types, tissues, and stimuli and is adaptable to characterize ribosome remodeling in several contexts. This dataset refers to relative quantification of RAPs enriched by RAPIDASH from E12.5 mouse limbs, forebrain, and liver, as elaborated in Figure 4B.

2024-09-12 | PXD054304 | Pride

Genome-wide maps of chromatin state in E12.5 mouse forelimbs

Project description:The chromatin state in developing body parts provides a zip code to cellular populations that direct their cell fates. We used antibodies for H3K4me3, H3K27me3 and Pol2, to identify the chromatin state signature of the mouse forelimb during mid-gestation, at embryonic day 12. The families of genes marked included those related to transcription, transcriptional regulation, and embryonic organ development. Transcription factors specific for muscle development were characterized by bivalent chromatin, as E12 is a transition time point from embryonic to fetal myogenesis. The identified chromatin state of muscle specific genes was in strong correlation with their observed expression profile. Examination of the histone marks H3K4me3, H3k27me3, and Pol2 in whole E12.5 forelimnb tissues using the Illumina HiSeq 2000.

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Genome-wide maps of chromatin state in LUAD and normal tissues

Project description:We report the application of Hi-C technology for high-throughput profiling of LUAD and normal tissues. By obtaining over three billion bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of LUAD. We found the main conversion type of compartment is A→B in tumor tissues, 216 tumor-specific TADs and 41 distinct enhancer-promoter loops in tumor tissue. And these chromatin structure variations are mainly on chromosome 3. We also found 5 most important genes (SYT16, NCEH1, NXPE3, MB21D2, and DZIP1L), which were detected in both A→B compartment, TADs and chromatin loops.

2021-04-30 | GSE161486 | GEO

Transcription profiling of mouse wild type and E2F4 knockout neurospheres from E12.5 forebrain

Project description:E2F4 wild and knockout type neurospheres from E12.5 forebrain. E2F4 transcription factor regulates the expression of the genes which are required for neural stem cell expansion in the developing mouse brain. The results of microarray analysis will help to identify the signaling pathways affected by E2F4 deletion and refine the neural stem cell regulatory mechanism. Experiment Overall Design: This experiment include 2 samples on 2 platforms for a total of 4 Samples.

2008-04-08 | E-GEOD-10401 | biostudies-arrayexpress

total RNA-seq from forebrain (ENCSR647QBV)

Project description:e12.5 forebrain For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf

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ATAC-seq from forebrain (ENCSR559FAJ)

Project description:ATAC-seq on embryonic e12.5 mouse forebrain For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf

2021-04-22 | GSE172676 | GEO

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