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A brain precursor atlas reveals the acquisition of developmental-like states in adult cerebral tumours

ABSTRACT: We generated a single-cell RNA-seq atlas capturing over 100,000 cells spanning all stages of the mouse cerebral development. By examining data from over 100 cerebral tumour samples, our study reveals that, despite the phenotypic/genotypic differences between the tumour types, they are all comprised of developmental sublineages that map most closely to embryonic or juvenile stages of development.

PROVIDER: EGAS00001006237 | EGA |

REPOSITORIES: EGA

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d4899051-7c09-4710-897b-9de4cef2f0e3 - samples

Project description:We generated a single-cell RNA-seq atlas capturing over 100,000 cells spanning all stages of the mouse cerebral development. By examining data from over 100 cerebral tumour samples, our study reveals that, despite the phenotypic/genotypic differences between the tumour types, they are all comprised of developmental sublineages that map most closely to embryonic or juvenile stages of development.

| EGAD00001008746 | EGA

A brain precursor atlas reveals the acquisition of developmental-like states in adult cerebral tumours

Project description:We map the development of mouse cerebrum across the developmental time-course, from embryonic day 12.5 to postnatal day 365, performing single-cell transcriptomics on >100,000 cells. By comparing this reference atlas to single-cell data from >100 glial tumours of the adult and pediatric human cerebrum, we find that tumour cells have an expression signature that overlaps with temporally restricted, embryonic radial glial precursors (RGPs) and their immediate sublineages. Further, we demonstrate that transformation of early RGPs in a genetic mouse model gives rise to adult cerebral tumours that show an embryonic/juvenile RGP identity. Together, these findings implicate the acquisition of embryonic-like states in the genesis of adult glioma, providing insight into the origins of human glioma, and identifying specific developmental cell types for therapeutic targeting.

2022-06-14 | GSE200202 | GEO

A brain precursor atlas reveals the acquisition of developmental-like states in adult cerebral tumours.

Project description: Not available

| S-EPMC9296666 | biostudies-literature

A brain precursor atlas reveals the acquisition of developmental-like states in adult cerebral tumours

Project description:A brain precursor atlas reveals the acquisition of developmental-like states in adult cerebral tumours

| PRJNA823669 | ENA

Profiling of spatio-temporally regulated transcripts during cerebral corticogenesis in the mouse

Project description:The cerebral cortex plays an important role in cognitive function and specialized perception in mammals and its development requires highly specific spatio-temporal control of gene expression. The study identified stage- and region-specific markers throughout cerebral corticogenesis at various important stages of cerebral cortex development; embryonic day (E) 15.5, E17.5, postnatal day (P) 1.5 and 4-6 months old. The study involved the analysis of 12 SAGE libraries, which were generated from the mouse cerebral cortex of E15.5 (n=3), E17.5 (n=2), P1.5 (n=1) and 4-6 month old (n=6). N denotes biological replicates.

2009-09-25 | E-GEOD-15031 | biostudies-arrayexpress

Profiling of spatio-temporally regulated transcripts during cerebral corticogenesis in the mouse

2009-09-25 | GSE15031 | GEO

Epigenetic and transcriptional landscapes during cerebral cortex development in a microcephaly mouse model

Project description:The cerebral cortex is a pivotal structure that is integral to advanced brain functions within the mammalian central nervous system. Patterns of DNA methylation and hydroxymethylation play important roles in regulating cerebral cortex development. However, it remains unclear whether abnormal cerebral cortex development, such as microcephaly, could rescale the epigenetic landscape, potentially contributing to dysregulated gene expression during brain development. In this study, we characterize and compare the DNA methylome/hydroxymethylome and transcriptome profiles of the cerebral cortex across several developmental stages in wild-type (WT) mice and Mcph1 knockout (Mcph1-del) mice with severe microcephaly. Intriguingly, we discover a global reduction of 5'- hydroxymethylcytosine (5hmC) level, primarily in TET1-binding regions, in Mcph1-del mice compared to WT mice during juvenile and adult stages. Notably, genes exhibiting diminished 5hmC levels and concurrently decreased expression are essential for neurodevelopment and brain functions. Additionally, genes displaying a delayed accumulation of 5hmC in Mcph1-del mice are significantly associated with the establishment and maintenance of the nervous system during the adult stage. These findings reveal that aberrant cerebral cortex development in early stages can profoundly alter the epigenetic regulation program, which provides new insights into the molecular mechanisms underpinning diseases related to cerebral cortex development.

2022-10-31 | GSE215230 | GEO

Epigenetic and transcriptional landscapes during cerebral cortex development in a microcephaly mouse model [RRBS/oxRRBS]

2022-10-31 | GSE215229 | GEO

Epigenetic and transcriptional landscapes during cerebral cortex development in a microcephaly mouse model [RNA-seq]

2022-10-31 | GSE215228 | GEO

Expression data from mouse cerebral cortex

Project description:Differential gene expression of cerebral cortex might be responsible for distinct neurovascular developments between different mouse strains We used Affymetrix microarray to explore the global gene expression patterns of mouse cerebral cortex of different mouse strains at two developmental stages Cerebral cortex from two mouse strains [C57BL/6J(B6) and C3H/J (C3H)] at post-natal day 1 (p1) and post-natal 11 weeks (11 wk) were harvested for microarray experiments

2013-10-21 | E-GEOD-46443 | biostudies-arrayexpress

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