Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Single-Cell Transcriptome Analysis of Rb1 Conditional Knockout Prospermatogonia

ABSTRACT: Prospermatogonia, precursors to the mature male germline, undergo a period of sustained quiescence during late fetal and early postnatal development. The purpose of this mitotic arrest is not fully understood. Therefore, utilizing conditional ablation of retinoblastoma protein 1 (Rb1) in mice which blocks entry into quiescence, we analyzed prospermatogonia at the cusp of mitotic arrest at embryonic day 14.5. Prospermatogonia from heterozygous controls or conditional knockout males were isolated via fluorescence-activated cell sorting and profiled via single-cell RNA-sequencing (scRNA-seq). Outcomes of scRNA-seq analysis revealed that a metabolic shift to oxidative phosphorylation and meiotic inhibition are disrupted in prospermatogonia that fail to initiate quiescence. Collectively, these findings and others suggest that biosensing mechanisms eliminate prospermatogonia that fail to mitotically arrest and that key layers of programming are applied during quiescence to ensure proper fate specification.

ORGANISM(S): Mus musculus

PROVIDER: GSE149223 | GEO | 2021/04/27

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Single-Cell Transcriptome Analysis of Rb1 Conditional Knockout Prospermatogonia

Project description:Single-Cell Transcriptome Analysis of Rb1 Conditional Knockout Prospermatogonia

| PRJNA627691 | ENA

SWI/SNF chromatin remodeling complex is required for initiation of sex-dependent differentiation in mouse germline

Project description:Sexual reproduction involves the creation of sex-dependent gametes, oocytes and sperm. In mammals, sexually dimorphic differentiation commences in the primordial germ cells (PGCs) in embryonic gonads; PGCs in ovaries and testes differentiate into meiotic primary oocytes and mitotically quiescent prospermatogonia, respectively. Here, we show that the transition from PGCs to　sex-specific germ cells was abrogated in conditional knockout mice carrying a null mutation of Smarcb1 (also known as Snf5) gene, which encodes a core subunit of the SWI/SNF chromatin remodeling complex. In female mutant mice, failure to upregulate meiosis-related genes resulted in impaired meiotic entry and progression, including defects in synapsis formation and DNA repair. Mutant male mice exhibited delayed mitotic arrest and DNA hypomethylation in retrotransposons and imprinted genes, resulting from aberrant expression of genes related to growth and de novo DNA methylation. Collectively, our results demonstrate that the SWI/SNF complex is required for transcriptional reprogramming in the initiation of sex-dependent differentiation of germ cells.

2021-12-15 | GSE154209 | GEO

WGBS on prospermatogonia at E18.5

Project description:WGBS on prospermatogonia at E18.5

| PRJNA682750 | ENA

Single-cell transcriptome analysis of the germ cells and somatic cells during mitotic quiescence stage in goats

Project description:As goats are important domestic animals, the regulation of germline and gonadal somatic cells in goats during the mitotic quiescence phase has not been investigated previously. In this study, we employed single-cell RNA sequencing to identify transcriptional signatures of major prospermatogonia and somatic cell types of the testes in goats from E85, E105 and E125.

2023-10-12 | GSE234407 | GEO

DDX20 is required for cell cycle reentry of prospermatogonia and establishment of spermatogonial stem cell pool during testicular development in mice

Project description:DDX20 is required to promote spermatogonial stem cell pool formation by regulating mRNA translation during postnatal prospermatogonia differentiation in mice.

2024-02-01 | GSE244755 | GEO

Transcription profiling of mouse prospermatogonia, pachytene oogonia, and gonadal somatic cells from 15 day post-conceptus fetuses and pachytene spermatocytes from adults

Project description:RNA expression microarray analysis of prospermatogonia in 15 day post-conceptus (dpc) fetuses, a stage when they are undergoing rapid de novo DNA methylation. For comparison, we also analysed 15 dpc pachytene oogonia, 15 dpc female and male gonadal somatic cells, and adult pachytene spermatocytes.

2008-12-16 | E-TABM-412 | biostudies-arrayexpress

CUT&RUN of TAF4b and H3K4me3 in E16.5 prospermatogonia

Project description:Taf4b-deficient male mice are initially sub-fertile and become infertile due to a depletion of the spermatogonial stem cell (SSC) reserve. During embryonic time points, significantly reduced numbers of germ cells have been observed in the Taf4b-deficient male gonad and previous research has shown that Taf4b mRNA expression peaks at E15.5. Therefore, we hypothesized that TAF4b, as part of TFIID, regulates cell cycle and SSC gene programs. However, the direct targets of TAF4b have not been thoroughly explored. Therefore, we performed Cleavage Under Targets and Release Using Nuclease (CUT&RUN) in E16.5 mouse prospermatogonia.

2023-10-04 | GSE188701 | GEO

The control of transcriptional memory by stable mitotic bookmarking

Project description:To maintain cellular identities during development, gene expression profiles must be faithfully propagated through cell generations. The reestablishment of gene expression patterns upon mitotic exit is thought to be mediated, in part, by mitotic bookmarking by transcription factors (TF). However, the mechanisms and functions of TF mitotic bookmarking during early embryogenesis remain poorly understood. In this study, taking advantage of the naturally synchronized mitoses of Drosophila early embryos, we provide evidence that the pioneer-like transcription factor GAF acts as stable mitotic bookmarker during zygotic genome activation. We report that GAF remains associated to a large fraction of its interphase targets (37%). Mitotically-bound loci include cis-regulatory sequences of key developmental genes, with both active and repressive chromatin signatures. GAF mitotic targets are globally accessible during mitosis and a subset is also mitotically bookmarked via histone acetylation (H4K8ac). By monitoring the kinetics of transcriptional activation in living embryos, we provide evidence that GAF binding establishes competence for rapid activation upon mitotic exit.

2022-02-25 | GSE180812 | GEO

Brn2 (POU3F2) ChIP-seq data obtained from asynchronous or mitotically arrested mouse neural stem/progenitor cells

Project description:dataset contains 8 samples: 2 asynchronous and 2 mitotically synchronized populations (one with 90% and another with 95% mitotic purity) and 4 corresponding inputs. Cells were synchonized for 10h with colchicine at 330nM. asyncronous samples (interphase) were sonicated and prepared in parallel with same cell number as the corresponding mitotic samples. Fetal neural stem/progenitor cells were obtained from mouse telencephalon (ventral region) at E13.5. This data generated 4 genome-wide binding profiles corresponding to Brn2 (POU3f2) binding sites, aligned to MM9 mus musculus dataset.

2021-02-13 | E-MTAB-9758 | biostudies-arrayexpress

Genome-wide binding profiles of HP1a and Prospero in Drosophila central brain neural precursors and neurons

Project description:Compacted heterochromatin blocks are prevalent in differentiated cells and present a barrier to cellular reprogramming. It remains obscure how heterochromatin remodeling is orchestrated during cell differentiation. Here we find that the evolutionarily conserved homeodomain transcription factor Prospero (Pros)/Prox1 ensures neuronal differentiation by driving heterochromatin domain condensation and expansion. Intriguingly, in mitotically dividing Drosophila neural precursors, Pros is retained at H3K9me3+ pericentromeric heterochromatin regions of chromosomes via liquid-liquid phase separation (LLPS). During mitotic exit of neural precursors, mitotically retained Pros recruits and concentrates heterochromatin protein 1 (HP1) into phase-separated condensates and drives heterochromatin compaction. This establishes a transcriptionally repressive chromatin environment that guarantees cell-cycle exit and terminal neuronal differentiation. Importantly, mammalian Prox1 employs a similar “mitotic-implantation-ensured heterochromatin condensation” strategy to reinforce neuronal differentiation. Together, our results unveiled a new paradigm whereby mitotic implantation of a transcription factor via LLPS remodels H3K9me3+ heterochromatin and drives timely and irreversible terminal differentiation.

2019-12-21 | GSE136413 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data