Fate and State Transitions during Human Blood Vessel Organoid Development: Time Course
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB85545 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Fate and State Transitions during Human Blood Vessel Organoid Development: Perturbation
| PRJEB85862 | ENA
Project description:Human blood vessel organoids (hBVOs) derived from human pluripotent stem cells have emerged as a novel system to understand human vascular development, model disorders, and develop regenerative therapies. However, it was unclear which molecular states constitute hBVOs and how cells differentiate and self-organize within hBVOs in vitro and after transplantation. Here we reconstruct hBVO development over a time course using single-cell transcriptomics. Data includes day 3, 4, 5, 6, 7, 14 and 21 of hBVO differentiation, as well as 2 months post-transplantation of 14-day hBVOs into immunocompromised mice. We observe progenitor states that bifurcate into endothelial and mural fates, and find that hBVOs do not acquire definitive arterio-venous endothelial identities in vitro. Chromatin accessibility profiling at days 3, 4 and 7 identifies gene regulatory network (GRN) features associated with endothelial and mural fate decisions. Transcriptome-coupled lineage recording reveals multipotent progenitor states within BVOs. These data provide the first comprehensive cell state atlas of BVO development.
2025-03-21 | E-MTAB-14807 | biostudies-arrayexpress
Project description:Human blood vessel organoids (hBVOs) have emerged as a system to model human vascular development and disease. Here, we use genetic and signaling pathway perturbations to reconstruct hBVO development. We use single-cell genetic perturbations to identify transcription factors (TFs) and receptors involved in cell fate specification, including a role for MECOM in endothelial and mural specification. We assess the potential of BVOs to generate organotypic states, particularly brain vasculature-specificity, using small-molecule and TF-gene over expression perturbation. Finally, we mimic inflammatory and diabetic conditions in hBVOs in vitro. Altogether, we provide data for the first comprehensive cell state atlas of hBVO development and illuminate the power and limitation of hBVOs for translational research.
2025-03-01 | E-MTAB-14839 | biostudies-arrayexpress
Project description:Chromatin regulation and RNA processing are both fundamental for establishing cell identity, yet how they interact to direct cell fate remains unclear. To uncover factors that coordinate this interplay, we screened dual DNA- and RNA-binding proteins (DRBPs) and identified ILF2 and ILF3 as critical regulators of human cell fate. We show that ILF2 and ILF3 control human, but not mouse, gastrulation and maintain the self-renewal of adult progenitor cells across all three germ layers. Mechanistically, ILF2 and ILF3 interact with and inhibit the RNA-editing enzyme ADAR, which catalyzes adenosine-to-inosine conversion in primate-specific repetitive elements. Acute degradation of the ILF2-ILF3 complex triggers widespread RNA misediting and missplicing of transcripts encoding key cell fate regulators. These misedited transcripts are degraded, destabilizing the proteome and rewiring the epigenetic landscape of stem and progenitor cells. Our findings reveal a human-specific mechanism linking RNA processing to chromatin regulation and identify an evolutionary safeguard that prevents aberrant RNA editing and retrotransposon activation, enabling human cell fate transitions.
2025-02-26 | PXD061192 | Pride
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE141269 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137709 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137708 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137707 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137706 | GEO
Project description:To investigate GLI3 TF targets during organoid fate decisions, we performed Cut&Tag of GLI3 binding
2022-08-28 | E-MTAB-12006 | biostudies-arrayexpress