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Single-cell RNA-seq (10X Genomics Chromium) of MGE, CGE, cortical and subcortical regions of E13.5, E18.5 and P10 mice

ABSTRACT: Single-cell RNA-seq to profile a developmental time course of interneuron development, measuring the transcriptomes of progenitors during their maturation in the ganglionic eminences.

ORGANISM(S): Mus musculus

PROVIDER: GSE104156 | GEO | 2018/03/05

REPOSITORIES: GEO

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Single-cell RNA-seq (Drop-seq) of MGE, CGE and LGE of E13.5 (MGE) and E14.5 (CGE, LGE) mouse embryos

Project description:Single-cell RNA-seq to profile a developmental time course of interneuron development, measuring the transcriptomes of progenitors during their maturation in the ganglionic eminences.

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Single-cell RNA-seq (10X Genomics Chromium) of LGE, MGE, CGE, and Cortex from mouse embryonic forebrain

Project description:We performed single-cell RNA sequencing to characterize transcriptional heterogeneity of neural progenitors within the ventricular zone and subventricular zone of E12.5 and E14.5 mouse cortex and ganglionic eminences. By using a transgenic mouse line (Nestin-d4-Venus) to enrich for VZ cells, we detect significant transcriptional heterogeneity within VZ and SVZ progenitors, both between forebrain regions and within spatial subdomains of specific GEs.

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Single-cell RNA-seq (10X Genomics Chromium) of MGE, CGE, cortical and subcortical regions of E13.5, E18.5 and P10 mice

Project description:Single-cell RNA-seq (10X Genomics Chromium) of MGE, CGE, cortical and subcortical regions of E13.5, E18.5 and P10 mice

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Developmental diversification of cortical inhibitory interneurons

Project description:We applied massively parallel single-cell RNA-seq to profile a developmental time course of interneuron development, measuring the transcriptomes of over 60,000 progenitors during their maturation in the ganglionic eminences and embryonic migration into the cortex.

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Arx acts as a key selector gene of the ventral telencephalon mainly through its repression transcriptional activity

Project description:The homeobox containing gene Arx is expressed during ventral telencephalon development and it is required for correct GABAergic interneuron tangential migration from the ganglionic eminences to the olfactory bulbs, cerebral cortex and striatum. Its human ortholog is associated with a variety of neurological clinical manifestations whose syntoms are compatible with a loss of cortical interneurons and altered basal ganglia related-activities in humans. Herein, we reported the identification by global expression profiling of a group of genes whose expression is consistently altered in Arx mutant ganglionic eminences. Following analysis revealed the striking ectopic expression in the ganglionic eminences of a number of genes normally not, or only marginally, expressed in the ventral telencephalon. Among them, we functionally analyzed Ebf3, whose ectopic expression in ventral telencephalon is preventingneuronal tangential migration. Further, we showed that Arx is sufficient to repress Ebf3 endogenous expression and that its silencing in Arx mutant tissue might marginally rescue tangential cell movements. Together, these data provide an initial analysis of the molecular pathways regulated by Arx and how their networking might regulate those specific cellular processes during telencephalon development strongly altered by loss of Arx. Three timed-pregnant Arx heterozygous dams crossed with C57Bl/6 males were sacrificed at E14.5, the embryos harvested and placed into cold PBS. After brain isolarion, meninges and olfactory bulbs were removed, and the ventral telencephalon separated from the overlying cerebral cortex. The same procedure was repeated for 5 wt and 5 Arx mutant embryos.

2010-03-09 | E-GEOD-12956 | biostudies-arrayexpress

Arx acts as a key selector gene of the ventral telencephalon mainly through its repression transcriptional activity

2010-02-26 | GSE12956 | GEO

Single-cell RNA-seq (Smart-seq2) of MGE of E13.5 mice

Project description:Single-cell RNA-seq of mitotically enriched cells in the medial ganglionic eminence (Dlx6 negative), as well as labeled cells using FlashTag technology.

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MicroArray Gene Expression Profiling of NKX2.1-GFP+ MGE-like Interneuron Precursors Derived from Human Embryonic Stem Cells

Project description:Human embryonic stem cells with a GFP reporter knock-in into the NKX2.1 locus were differentiated and purified by FACS sorting for global gene expression analysis. Directed differentiation from human pluripotent stem cells (hPSCs) has seen significant progress in recent years. Most differentiated populations, however, exhibit immature properties of an early embryonic stage, raising concerns about their ability to model and treat disease. Here, we report the directed differentiation of hPSCs into medial ganglionic eminence (MGE)-like progenitors and their maturation into forebrain type interneurons. We find that early stage progenitors progress via a radial glial-like stem cell enriched in the human fetal brain. Both in vitro and post-transplantation into the rodent cortex, the MGE-like cells develop into GABAergic interneuron subtypes with mature physiological properties along a prolonged intrinsic timeline of up to seven months, mimicking endogenous human neural development. MGE-derived cortical interneuron deficiencies are implicated in a broad range of neurodevelopmental and degenerative disorders, highlighting the importance of these results for modeling human neural development and disease. Human embryonic stem cells with a GFP reporter knock-in into the NKX2.1 locus were differentiated for 20, 35, and 55 days in vitro and GFP+ cells were purified by FACS sorting. Total RNA was prepared from each timepoint and compared to undifferentiated human embryonic stem cells. hESC = one sample and three technical replicates. D20 = three independent samples. D35 = one sample and two technical replicates. D55 = one sample and one technical replicate.

2013-05-03 | E-GEOD-45660 | biostudies-arrayexpress

Expression data from purified medial ganglionic eminence (MGE) interneurons, 3 biological replicates

Project description:During development, newborn interneurons migrate throughout the embryonic brain. Here, we provide evidence that these interneurons act in a paracrine fashion to regulate developmental oligodendrocyte formation. Specifically, we show that medial ganglionic eminence (MGE) interneurons secrete factors that promote genesis of oligodendrocytes from glially-biased cortical precursors in culture. Moreover, when MGE interneurons are genetically ablated in vivo prior to their migration, this causes a deficit in cortical oligodendrogenesis. Modeling of the interneuron-precursor paracrine interaction using transcriptome data identifies the cytokine fractalkine as responsible for the pro-oligodendrocyte effect in culture. This paracrine interaction is important in vivo, since knockdown of the fractalkine receptor CX3CR1 in embryonic cortical precursors, or constitutive knockout of CX3CR1 causes decreased numbers of oligodendrocyte progenitor cells (OPCs) and oligodendrocytes in the postnatal cortex. Thus, in addition to their role in regulating neuronal excitability, interneurons act in a paracrine fashion to promote the developmental genesis of oligodendrocytes. We used microarrays to generate a list of expressed genes in purified medial ganglionic eminence (MGE) interneurons

2017-03-06 | GSE95696 | GEO

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