Identification of a set of transcriptional regulators involved in the temporal regulation of neuron subtype differentiation [RNA-Seq 2]
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE324318 | GEO | 2026/06/14
REPOSITORIES: GEO
Similar Datasets
Project description:The sequential generation of various types of neurons and glia from neural stem /progenitor cells (NSPCs) during development is a major part to build complex central nervous system. Here, we identify PHF21b, ZFP7 and ZFP57 as crucial factors that regulate the transition from early-born neuron to late-born neuron generation by NSPCs in the developing mouse cortex and ganglionic eminence. Combinatorial overexpression of these three factors in the stage progressed NSPCs generating late-born neurons resulted in prolonged generation of early-born neurons. Conversely, simultaneous knockdown of these genes suppressed generation of early-born neurons.
2026-03-31 | GSE310706 | GEO
Project description:The sequential generation of various types of neurons and glia from neural stem /progenitor cells (NSPCs) during development is a major part to build complex central nervous system. COUP-TFI/II (NR2F1/2) are critical factors for the temporal specification of NSPCs including neurogenesis-to-gliogenesis switch. MicroRNA miR-17 has also been shown to regulate acquisition of gliogenic competence by NSPCs downstream of COUP-TFs. We tried to identify candidate genes that are involved in the temporal change of the potency of NSPCs for the sequential generation of different neuron subtypes but not acquisition of gliogenic competence downstream of COUP-TFs.
2026-03-31 | GSE309874 | GEO
Project description:We labelled isochronic cohorts of mouse cortical neurons and analyzed their contribution to the diversity of cortical neurons. We find that early born neurons contribute to a large diversity of cortical neuron subtypes, asa also confirmed by the transcsriptomic analysis of E13.5 born neurons through Patchseq. Ultimately we identify eaarly differentiation of early born neurons as the instance characterized by the highest tranascriptomical variability which intermingles deep layer identity genes with upper layer specific ones.
2022-12-18 | GSE142601 | GEO
Project description:Neocortical excitatory neurons belong to diverse cell types, which can be distinguished by their dates of birth, laminar location, connectivity and molecular identities. During embryogenesis, apical progenitors (APs) located in the ventricular zone first give birth to deep-layer neurons, and next to superficial-layer neurons. While the overall sequential construction of neocortical layers is well-established, whether multiple neuron types are produced by APs at single time points of corticogenesis is unknown. To address this question, here we used FlashTag to fate-map simultaneously-born (i.e. isochronic) cohorts of AP-born neurons at successive stages of corticogenesis. We reveal that early in corticogenesis, isochronic neurons differentiate into heterogeneous laminar, hodological and molecular cell types. Later on, instead, simultaneously-born neurons have more homogeneous fates. Using single-cell gene expression analyses, we identify an early postmitotic surge in the molecular heterogeneity of nascent neurons during which some early-born neurons initiate and partially execute late-born neuron transcriptional programs. Together, these findings suggest that as corticogenesis unfolds, mechanisms allowing increased homogeneity in neuronal output are progressively implemented, resulting in progressively more predictable neuronal identities.
2022-04-20 | GSE191205 | GEO
Project description:Neural stem/progenitor cells (NSPCs) generate new neurons throughout adulthood. However, the underlying regulatory processes are still not fully understood. Lipid metabolism plays an important role in regulating NSPC activity: build-up of lipids is crucial for NSPC proliferation, whereas break-down of lipids has been shown to regulate NSPC quiescence. Despite their central role for cellular lipid metabolism, the role of lipid droplets (LDs), the lipid storing organelles, in NSPCs remains underexplored. Here we show that LDs are highly abundant in adult mouse NSPCs, and that LD accumulation is significantly altered upon fate changes such as quiescence and differentiation. NSPC proliferation is influenced by the number of LDs, inhibition of LD build-up, breakdown or usage, and the asymmetric inheritance of LDs during mitosis. Furthermore, high LD-containing NSPCs have increased metabolic activity and capacity, but do not suffer from increased oxidative damage. Together, these data indicate an instructive role for LDs in driving NSPC behaviour.
2021-11-10 | GSE187470 | GEO
Project description:Neurogenesis in the developing neocortex begins with the generation of the preplate, which consists of early-born neurons including Cajal-Retzius (CR) cells and subplate neurons. Here, utilizing the Ebf2-EGFP transgenic mouse in which EGFP initially labels the preplate neurons then persists in CR cells, we reveal the dynamic transcriptome profiles of early neurogenesis and CR cell differentiation. Genome-wide RNA-seq and ChIP-seq analyses at multiple early neurogenic stages have revealed the temporal gene expression dynamics of early neurogenesis and distinct histone modification patterns in early differentiating neurons. We have identified a new set of coding genes and lncRNAs involved in early neuronal differentiation and validated with functional assays in vitro and in vivo. In addition, at E15.5 when Ebf2-EGFP+ cells are mostly CR neurons, single-cell sequencing analysis of purified Ebf2-EGFP+ cells uncovers molecular heterogeneity in CR neurons, but without apparent clustering of cells with distinct regional origins. Along a pseudotemporal trajectory these cells are classified into three different developing states, revealing genetic cascades from early generic neuronal differentiation to late fate specification during the establishment of CR neuron identity and function. Our findings shed light on the molecular mechanisms governing the early differentiation steps during cortical development, especially CR neuron differentiation.
2021-02-05 | GSE166014 | GEO
Project description:Neurogenesis in the developing neocortex begins with the generation of the preplate, which consists of early-born neurons including Cajal-Retzius (CR) cells and subplate neurons. Here, utilizing the Ebf2-EGFP transgenic mouse in which EGFP initially labels the preplate neurons then persists in CR cells, we reveal the dynamic transcriptome profiles of early neurogenesis and CR cell differentiation. Genome-wide RNA-seq and ChIP-seq analyses at multiple early neurogenic stages have revealed the temporal gene expression dynamics of early neurogenesis and distinct histone modification patterns in early differentiating neurons. We have identified a new set of coding genes and lncRNAs involved in early neuronal differentiation and validated with functional assays in vitro and in vivo. In addition, at E15.5 when Ebf2-EGFP+ cells are mostly CR neurons, single-cell sequencing analysis of purified Ebf2-EGFP+ cells uncovers molecular heterogeneity in CR neurons, but without apparent clustering of cells with distinct regional origins. Along a pseudotemporal trajectory these cells are classified into three different developing states, revealing genetic cascades from early generic neuronal differentiation to late fate specification during the establishment of CR neuron identity and function. Our findings shed light on the molecular mechanisms governing the early differentiation steps during cortical development, especially CR neuron differentiation.
2021-02-05 | GSE166012 | GEO
Project description:Neurogenesis in the developing neocortex begins with the generation of the preplate, which consists of early-born neurons including Cajal-Retzius (CR) cells and subplate neurons. Here, utilizing the Ebf2-EGFP transgenic mouse in which EGFP initially labels the preplate neurons then persists in CR cells, we reveal the dynamic transcriptome profiles of early neurogenesis and CR cell differentiation. Genome-wide RNA-seq and ChIP-seq analyses at multiple early neurogenic stages have revealed the temporal gene expression dynamics of early neurogenesis and distinct histone modification patterns in early differentiating neurons. We have identified a new set of coding genes and lncRNAs involved in early neuronal differentiation and validated with functional assays in vitro and in vivo. In addition, at E15.5 when Ebf2-EGFP+ cells are mostly CR neurons, single-cell sequencing analysis of purified Ebf2-EGFP+ cells uncovers molecular heterogeneity in CR neurons, but without apparent clustering of cells with distinct regional origins. Along a pseudotemporal trajectory these cells are classified into three different developing states, revealing genetic cascades from early generic neuronal differentiation to late fate specification during the establishment of CR neuron identity and function. Our findings shed light on the molecular mechanisms governing the early differentiation steps during cortical development, especially CR neuron differentiation.
2021-02-05 | GSE166011 | GEO
Project description:Throughout the central nervous system, the fate and migration of projection neurons are tightly coordinated to ensure that specific neuronal fates settle in precise spatial locations. This is particularly evident in the mammalian neocortex, where early-born projection neurons predominantly remain in the deeper layers of the cortical plate, whereas later-born neurons localize more superficially. However, it remains unclear whether neuronal fate acquisition directly primes the molecular mechanisms driving pyramidal neuron migration and positioning, or on the contrary fate and positioning are regulated independently. MicroRNAs have emerged as key regulators of cell fate determination in the neocortex. Among them, let-7 is known to influence neural progenitor competence and promote the neurogenesis of late-born projection neurons. Here, we show that let-7 also regulates projection neuron migration and positioning by targeting RBX2, a core component of the E3 ubiquitin ligase CRL5, which has been previously shown to inhibit neuron migration by terminating the Reelin/DAB1 signaling pathway. Let-7 directly binds to a conserved motif in the 3′ UTR of RBX2, reducing its translation and thereby diminishing CRL5 activity. Importantly, restoring RBX2 levels in the context of let-7 overexpression rescues the positioning of pyramidal neurons without altering let-7-induced effects on neuronal fate. Furthermore, we demonstrate that let-7 enhances pyramidal neuron migration by increasing locomotion speed and prolonging migratory activity. Together, these findings reveal that let-7 coordinates neuronal fate specification and migration via distinct molecular pathways, ensuring the proper laminar positioning of late-born pyramidal neurons in the neocortex.
2026-04-07 | GSE307927 | GEO
Project description:Prenatal stress (PNS) is a well-established risk factor for psychiatric disorders, yet the underlying neurobiological mechanisms remain unclear. Here, we demonstrate that PNS induces long-term behavioral abnormalities, including increased anxiety- and depressive-like behaviors in adult male mice. To investigate potential neurodevelopmental disruptions, we analyzed the medial prefrontal cortex (mPFC) at key postnatal stages. RNA sequencing at postnatal day 1 (P1) revealed significant transcriptional changes, particularly in genes associated with neuronal migration and differentiation, with a diminished effect by P14. Histological analysis identified a transient imbalance in inhibitory neuron subpopulations, PNS decreased the density of early-born MGE-derived neurons while increasing late-born CGE-derived neurons at P1. EdU labeling confirmed that these shifts were time- and subtype-specific, affecting inhibitory neuron proliferation at distinct embryonic stages. By P15, these neuroanatomical alterations largely resolved, yet behavioral abnormalities persisted into adulthood. Our findings suggest that PNS disrupts inhibitory neuron development during a critical early window, leading to lasting behavioral consequences despite the transient nature of anatomical changes. This study highlights the selective vulnerability of inhibitory neuron subtypes to early-life stress and provides insight into potential mechanisms underlying stress-related psychiatric disorders.
2025-08-10 | GSE296365 | GEO