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SoxB1 transcription factors are essential for intiating and maintaining neural plate border gene expression [ChIP-seq]

ABSTRACT: Here we investigate a functional role for SoxB1 transcription factors, Sox2 and Sox3, on the transient embryonic cell population, the neural plate border. We find through gain/loss-of-function studies necessary for neural plate border cells to become neural crest cells. and genomics experiments (ChIP-seq and RNA-seq) that SoxB1 transcription factors directly promote neural plate border formation. and that down-regulation of SoxB1 expression is

ORGANISM(S): Xenopus laevis

PROVIDER: GSE252615 | GEO | 2024/06/26

REPOSITORIES: GEO

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SoxB1 transcription factors are essential for intiating and maintaining neural plate border gene expression [RNA-seq]

Project description:Here we investigate a functional role for SoxB1 transcription factors, Sox2 and Sox3, on the transient embryonic cell population, the neural plate border. We find through gain/loss-of-function studies necessary for neural plate border cells to become neural crest cells. and genomics experiments (ChIP-seq and RNA-seq) that SoxB1 transcription factors directly promote neural plate border formation. and that down-regulation of SoxB1 expression is

2024-06-26 | GSE252573 | GEO

Segregation of neural crest specific lineage trajectories from a heterogeneous neural plate border territory only emerges at neurulation

Project description:The epiblast of vertebrate embryos is comprised of neural and non-neural ectoderm, with the border territory at their intersection harbouring neural crest and cranial placode progenitors. Here we profile avian epiblast cells as a function of time using single-cell RNA-seq to define transcriptional changes in the emerging ‘neural plate border’. The results reveal gradual establishment of heterogeneous neural plate border signatures, including novel genes that we validate by fluorescent in situ hybridization. Developmental trajectory analysis shows that segregation of neural plate border lineages only commences at early neurulation, rather than at gastrulation as previously predicted. We find that cells expressing the prospective neural crest marker Pax7 contribute to multiple lineages, and a subset of premigratory neural crest cells shares a transcriptional signature with their border precursors. Together, our results suggest that cells at the neural plate border remain heterogeneous until early neurulation, at which time progenitors become progressively allocated toward defined lineages.

2021-12-31 | GSE181577 | GEO

Single cell RNA-sequencing of induced Neural Plate Border Stem Cells

Project description:We describe a so far uncharacterized, embryonic and self-renewing Neural Plate Border Stem Cell (NBSC) population with the capacity to differentiate into central nervous and neural crest lineages. NBSCs can be obtained by neural transcription factor-mediated reprogramming (BRN2, SOX2, KLF4 and ZIC3) of human adult dermal fibroblasts and peripheral blood cells (induced Neural Plate Border Stem Cells, iNBSCs) or by directed differentiation from human induced pluripotent stem cells (NBSCs). Moreover, human (i)NBSCs share molecular and functional features with an endogenous NBSC population isolated from neural folds of E8.5 mouse embryos. Upon differentiation, iNBSCs give rise to either (1) radial glia-type stem cells, dopaminergic and serotonergic neurons, motoneurons, astrocytes, and oligodendrocytes or (2) cells from the neural crest lineage. Here we provide single cell RNA-sequencing data of six iNBSC lines (310 cells total). iNBSCs were single-cell-sorted and RNA sequencing was performed following the Smart-seq2 protocol. This dataset further supports the notion that iNBSC cultures mainly consist of stem cells with a molecular and functional neural plate border-like identity and a minor fraction of cells that show signs of some spontaneous differentiation towards sensory neurons.

2018-12-20 | E-MTAB-6911 | biostudies-arrayexpress

RNA Expression profiling of human induced Neural Plate Border Stem Cells, Neural Plate Border Stem Cell progeny and biological controls

Project description:We describe a so far uncharacterized, embryonic and self-renewing Neural Plate Border Stem Cell (NBSC) population with the capacity to differentiate into central nervous and neural crest lineages. NBSCs can be obtained by neural transcription factor-mediated reprogramming (BRN2, SOX2, KLF4, and ZIC3) of human adult dermal fibroblasts and peripheral blood cells (induced Neural Plate Border Stem Cells, iNBSCs) or by directed differentiation from human induced pluripotent stem cells (NBSCs). Moreover, human (i)NBSCs share molecular and functional features with an endogenous NBSC population isolated from neural folds of E8.5 mouse embryos. Upon differentiation, iNBSCs give rise to either (1) radial glia-type stem cells, dopaminergic and serotonergic neurons, motoneurons, astrocytes, and oligodendrocytes or (2) cells from the neural crest lineage. Here we provide array-based expression data of (i)NBSCs and CNS- and neural crest progeny derived thereof. The former comprise radial glia-type stem cells, while the latter are neural crest and mesenchymal stem cell-like cells. The data provided reveal that (i)NBSCs can be directed into defined neural lineages and that iNBSCs pass through successive developmental stages. These data support the notion that it is possible to reprogram human adult cells into expandable, multipotent NBSCs that define a novel embryonic neural stem cell population in human and mouse.

2018-12-20 | E-MTAB-5804 | biostudies-arrayexpress

Single cell RNA-sequencing of primary mouse Neural Plate Border Stem Cells

Project description:We describe a so far uncharacterized, embryonic and self-renewing Neural Plate Border Stem Cell (NBSC) population with the capacity to differentiate into central nervous and neural crest lineages. NBSCs can be obtained by neural transcription factor-mediated reprogramming (BRN2, SOX2, KLF4, and ZIC3) of human adult dermal fibroblasts and peripheral blood cells (induced Neural Plate Border Stem Cells, iNBSCs) or by directed differentiation from human induced pluripotent stem cells (NBSCs). Moreover, human (i)NBSCs share molecular and functional features with an endogenous NBSC population isolated from neural folds of E8.5 mouse embryos. Upon differentiation, iNBSCs give rise to either (1) radial glia-type stem cells, dopaminergic and serotonergic neurons, motoneurons, astrocytes, and oligodendrocytes or (2) cells from the neural crest lineage. Here we provide single cell RNA-sequencing data of two primary mouse Neural Plate Border Stem Cell Lines (pNBSCs). pNBSCs were single cell sorted and RNA sequencing was performed following the Smart-seq2 protocol. In sum, pNBSCs and iNBSCs share a similar regional identity, expression signature and analogous differentiation dynamics on the single-cell-level, suggesting the presence of a transient, NBSC-like progenitor during the neurulation stage of mouse and likely also human embryos.

2018-12-20 | E-MTAB-6925 | biostudies-arrayexpress

SOXB1 genetic regulation in the developing testes

Project description:Absence of Sox3 in mice only results in subtle phenotype, presumably due to the rescue effects from the family members, SOXB1, which consist of Sox1, Sox2 and Sox3. Obvious defect in Sox3-KO mice is seen only in the testes where Sox1 and Sox2 are not co-expressed. The genetic dysregulation underlying this testis defects is unknown. We also hypothesize that this genetic dysregulation can be rescued by the other SOXB1 members. We performed microarray analysis to compare Sox3-KO mouse testes with the WT. We also generated Sox3-Sox2KI mice in which the Sox3 ORF is replaced with Sox2 ORF. Microarray was also performed to these knock-in testis samples to find out whether Sox2 can rescue genetic dysregulation resulting from the absence of Sox3.

2017-05-21 | GSE96805 | GEO

RNA Expression profiling of primary mouse Neural Plate Border Stem Cells, differentiated progeny and biological controls

Project description:We describe a so far uncharacterized, embryonic and self-renewing Neural Plate Border Stem Cell (NBSC) population with the capacity to differentiate into central nervous and neural crest lineages. NBSCs can be obtained by neural transcription factor-mediated reprogramming (BRN2, SOX2, KLF4, and ZIC3) of human adult dermal fibroblasts and peripheral blood cells (induced Neural Plate Border Stem Cells, iNBSCs) or by directed differentiation from human induced pluripotent stem cells. Moreover, human (i)NBSCs share molecular and functional features with an endogenous NBSC population isolated from neural folds of E8.5 mouse embryos. Upon differentiation, iNBSCs give rise to either (1) radial glia-type stem cells, dopaminergic and serotonergic neurons, motoneurons, astrocytes, and oligodendrocytes or (2) cells from the neural crest lineage. Here we provide array-based expression data of primary mouse Neural Plate Border Stem Cells (pNBSCs) derived from E8.5 mouse embryos and radial glia-type stem cells and neural crest progenitors derived thereof. The data provided reveal that pNBSCs can be directed into defined neural cell types of the CNS- and neural crest lineage.

2018-12-20 | E-MTAB-5805 | biostudies-arrayexpress

Fate specification of neural plate border by canonical Wnt signaling and Grhl3 is crucial for neural tube closure.

Project description:During primary neurulation, the separation of a single-layered ectodermal sheet into the surface ectoderm (SE) and neural tube specifies SE and neural ectoderm (NE) cell fates. The mechanisms underlying fate specification in conjunction with neural tube closure are poorly understood. Here, by comparing expression profiles between SE and NE lineages, we observed that uncommitted progenitor cells, expressing stem cell markers, are present in the neural plate border/neural fold prior to neural tube closure. To identify what type of signaling pathways and transcriptional factors are involved in the fate specification between SE and NE cells during neurulation.

2015-04-17 | E-GEOD-67977 | biostudies-arrayexpress

Fate specification of neural plate border by canonical Wnt signaling and Grhl3 is crucial for neural tube closure.

2015-04-17 | GSE67977 | GEO

Neural induction by the node and placode induction by head mesoderm share an initial state resembling neural plate border

Project description:Purpose: The goal of this study is to identify similarities and differences in the induction of the central nervous system and the sensory placodes in chick. Method: mRNA profiles for central and anterior pre-steak epiblast, neural plate, anterior and posterior pre-placodal region, non-neural epiblast, gastrula stage area opaca exposed to Hensen's node for 5 hours and control area of opaca from the same stage. Deep sequencing was carried with Illumina HiSeq 2000. After filtering low quality reads, alignment was carried using TopHat2, differential expression analysis was done using R-package (easyRNA-seq and DSEq). Results: Despite the differences in inducing tissues (i.e. node and lateral head mesoderm) and in the final outcome (neural plate and pre-placodal region), the initial set of genes induced by both tissues is largely identical. We define this transcriptional signature as 'pre-neural state', and demonstrate its functional significance for both inductive processes. An unbiased approach using GENEI3 and community clustering reveals the gene regulatory modules characterising the transcirptional states of pre-neural, neural and placodal cells. Conclusion: Induction of the neural plate and the pre-placodal region initially share common features, and diverge later. The pre-neural state is similar to the neural plate border and pre-streak epiblast state.

2018-02-14 | GSE106346 | GEO

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