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MicroRNA expression in subcerebral and callosal projection neurons in the mouse at postnatal day 1

ABSTRACT: microRNA expression in subcerebral and callosal projection neurons in the mouse at postnatal day 1

PROVIDER: PRJNA477297 | ENA |

REPOSITORIES: ENA

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microRNA expression in subcerebral and callosal projection neurons in the mouse at postnatal day 1

Project description:subcerebral and callosal projection neurons were purified by retrograde labeling and FACS, total microRNA was isolated, and expression analysed via TaqMan qPCR expression profiling three independent samples each of subcerebral and callosal projection neurons were analysed

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Transcription profiling of mouse FACS-purified cortical projection neurons using Affymetrix 430 2.0 microarrays

Project description:3 subtypes of cortical projection neurons were purified by fluorescence-activated cell sorting (FACS) at 4 different stages of development from mouse cortex. A detailed description of the data set is described in Arlotta, P et al (2005) and Molyneaux, BJ et al (2009). The hybridization cocktails used here were originally applied to the Affymetrix mouse 430A arrays and submitted as GEO accession number GSE2039. The same hybridization cocktails were then applied to the Affymetrix mouse 430 2.0 arrays, and those data are contained in this series. Experiment Overall Design: Three subtypes of cortical neurons were purified by FACS at multiple stages of mouse brain development. The neuron subtypes are: corticospinal motor neurons (CSMN), callosal projection neurons (CPN), and corticotectal projection neurons (CTPN). The stages of development included embryonic day 18 (E18), postnatal day 3 (P3), postnatal day 6 (P6), and postnatal day 14 (P14). CSMN and CPN were analyzed at all four stages, while CTPN were only analyzed at P14. The replicates included in the data set are all true biological replicates with independent sample collection for each.

2009-10-09 | E-GEOD-17783 | biostudies-arrayexpress

FACS purified cortical projection neurons

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2005-01-19 | GSE2039 | GEO

Transcription profiling of mouse FACS-purified cortical projection neurons

Project description:This SuperSeries is composed of the following subset Series:; GSE2039: FACS purified cortical projection neurons; GSE17783: Analysis of gene expression in FACS-purified cortical projection neurons using Affymetrix 430 2.0 microarrays Experiment Overall Design: Refer to individual Series

2009-10-10 | E-GEOD-17784 | biostudies-arrayexpress

RNA sequencing of corticospinal neurons and control callosal projection neurons purified from the cerebral cortex of adult wild-type and Sod1G86R mice, a model of amyotrophic lateral sclerosis, at four disease-relevant ages.

Project description:Amyotrophic Lateral Sclerosis is clinically defined as the combined degeneration of the corticospinal and corticobulbar neurons (CSN) along with the bulbar and spinal motor neurons (SMN). While a growing body of evidence points to the motor cortex, where CSN are located, as the potential initiation site of ALS, little is known about how CSN degenerate. To gain insights into the molecular mechanisms behind CSN selective degeneration, we first developed an approach to purify this neuronal population from the cerebral cortex of adult wild-type and Sod1G86R mice, combining retrograde labelling and Fluorescence Activated Cell Sorting. In parallel, a second population of cortical neurons, the callosal projection neurons (CPN) located in the layers II/III of the cerebral cortex were also purified. CPN and CSN are both cortical excitatory projection neurons but as opposed to CSN, CPN do not degenerate in Sod1G86R mice, and served as control population. CSN and CPN were purified from same animals, at two presymptomatic ages (3 and 60 days) and two symptomatic ages, 90 and 105 days. A total of 57 samples were further processed and analysed (CSN: 30d: n=4 WT and 3 Sod1G86R; 60d: n=4 WT and 4 Sod1G86R; 90d: n=4 WT and 4 Sod1G86R; 105d: n=4 WT and 2 Sod1G86R; CPN: 30d: n=4 WT and 3 Sod1G86R; 60d: n=2 WT and 3 Sod1G86R; 90d: n=4 WT and 4 Sod1G86R; 105d: n=4 WT and 4 Sod1G86R).

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RNA-seq of Wild-type and Math5-/- mouse dLGN (dorsolateral geniculate nucleus) at postnatal day 3, postnatal day 7, postnatal day 14 and postnatal day 23

Project description:RNA-seq of Wild-type and Math5-/- mouse dLGN (dorsolateral geniculate nucleus) at postnatal day 3, postnatal day 7, postnatal day 14 and postnatal day 23

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Single cell RNA-sequencing of 75-day old human H1 and H9 embryonic stem cell-derived cerebral organoids

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Transcription profiling of mouse FACS purified cortical projection neurons

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Developmental cell death of cortical projection neurons is controlled by a Bcl11a/Bcl6-dependent pathway II

Project description:Developmental neuron death plays a pivotal role in refining organization and wiring during neocortex formation. Aberrant regulation of this process results in neurodevelopmental disorders including impaired learning and memory. Underlying molecular pathways are incompletely determined. Loss of Bcl11a in cortical projection neurons induces pronounced cell death in upper-layer cortical projection neurons during postnatal corticogenesis. We used this genetic model to explore genetic mechanisms by which developmental neuron death is controlled. Unexpectedly, we found Bcl6, previously shown to be involved in transition of cortical neurons from progenitor to postmitotic differentiation state to provide a major check point regulating neuron survival during late cortical development. We show that Bcl11a is a direct transcriptional regulator of Bcl6. Deletion of Bcl6 exerts death of cortical projection neurons. In turn, reintroduction of Bcl6 into Bcl11a mutants prevents induction of cell death in these neurons. Together, our data identify a novel Bcl11a/Bcl6-dependent molecular pathway in regulation of developmental cell death during corticogenesis.

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Developmental cell death of cortical projection neurons is controlled by a Bcl11a/Bcl6-dependent pathway I

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