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Effects of Conditional Egfr deletion on transcriptome of the mouse cerebral cortex

ABSTRACT: To investigate the role of Egfr in the cerebreal cortex and hippocampal formation we conditionally deleted it using a floxed allele in combination with the Nestin-cre transgene. Cortices at E17.5 embryonic stage were harvested and split into rostral and caudal halves and RNA extracted and sequenced

ORGANISM(S): Mus musculus

PROVIDER: GSE205624 | GEO | 2022/06/09

REPOSITORIES: GEO

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Effects of Conditional Egfr deletion on transcriptome of the mouse cerebral cortex

Project description:To investigate the role of Egfr in the cerebreal cortex and hippocampal formation we conditionally deleted it using a floxed allele in combination with the Nestin-cre transgene. Cortices at P5 post-natal stage were harvested and split into rostral and caudal halves and RNA extracted and sequenced

2022-10-02 | GSE214424 | GEO

Brain BRCA1 conditional knockout

Project description:BRCA1 nestin CRE conditional knockout cortrices of P7 animals were compared to wildtype littermates to characterize the mutant phenotype. Keywords: expression BRCA1 conditional knockouts using nestin CRE and a null allele with an inverted neo cassette at the 5' end of the exon 11 of BRCA1 on one floxed allele flanking exons 5-13. Cortices of 3 wildtype animals were compred to 3 BRCA cKO at postnatal day 7.

2011-09-07 | E-GEOD-6310 | biostudies-arrayexpress

Identifying secreted biomarkers of dopaminergic ventral midbrain progenitor cells

Project description:Ventral midbrain (VM) dopaminergic progenitor cells derived from human pluripotent stem cells have the potential to replace endogenously lost dopamine neurons and are currently in preclinical and clinical development for treatment of Parkinson’s Disease (PD). However, one main challenge in the quality control of the cells is that rostral and caudal VM progenitors are extremely similar transcriptionally though only the caudal VM cells give rise to dopaminergic neurons with functionality in PD. Therefore, it is critical to develop assays which can rapidly and reliably discriminate rostral from caudal VM cells during clinical manufacturing. Here, we applied shotgun proteomics to search for novel secreted biomarkers specific for caudal VM progenitors compared to rostral VM progenitors and validated key hits by ELISA. From this, we identified novel secreted markers (CPE, LGI1 and PDGFC) significantly enriched in caudal versus rostral VM progenitor cultures, whereas the markers CNTN2 and CORIN were significantly enriched in rostral VM cultures. With this data, we suggest and test in clinical grade samples a panel of coupled ELISA assays that can be applied as a quality control tool for assessing the correct patterning of cells during clinical manufacturing.

2023-12-13 | PXD039510 | Pride

Transcription profiling of mouse E12.5 ePet-EYFP rostral and caudal serotonin (5HT) neurons purified by flow cytometry

Project description:The 5HT system is organized into rostral and caudal populations with discrete anatomical locations and opposite axonal trajectories in the developing hindbrain. 5HT neuron cell bodies in the rostral subdivision migrate to the midbrain and pons and extend ascending projections throughout the forebrain. 5HT cell bodies in the caudal subdivision migrate to the ventral medulla and caudal half of the pons and provide descending projections to the brainstem and spinal cord. Experiment Overall Design: We used microarrays to determine genes expressed by both rostral and caudal 5HT neurons as well as genes that are differentially expressed between rostral and caudal 5HT neurons at E12.5 when axon pathfinding and cell migration are underway. E12.5 neural tubes were isolated from ePet-EYFP embryos and dissected into a rostral domain (mesecephalic flexure to pontine flexure) and a caudal domain (pontine flexure to spinal cord). After cell dissociation (details under growth protocol), cells were subjected to fluorescent activated cell sorting (FACS) to obtain 4 cell populations. R+ = rostral ePetEYFP positive 5HT neurons; R- = YFP negative non-serotonergic cells in the rostral neural tube; C+ = caudal ePetEYFP positive 5HT neurons; C- = YFP negative non-serotonergic cells in the caudal neural tube. 200,000 cells for each of the 4 cell types (R+, R-, C+, C-) were collected for RNA extraction and hybridization to Affymetrix Mouse 430 2.0 arrays.

2010-01-30 | E-GEOD-19474 | biostudies-arrayexpress

Expression data from E12.5 ePet-EYFP rostral and caudal serotonin (5HT) neurons purified by flow cytometry

2009-12-16 | GSE19474 | GEO

Self-patterning of rostral-caudal neuroectoderm requires dual role of Fgf signaling for localized Wnt antagonism

Project description:The neuroectoderm is patterned along a rostral-caudal axis in response to localized factors in the embryo, but exactly how these factors act as positional information for this patterning is not yet fully understood. Here, using the self-organizing properties of mouse embryonic stem cell (ESC), we report that ESC-derived neuroectoderm self-generates a Six3+ rostral and a Irx3+ caudal bipolarized patterning. In this instance, localized Fgf signaling performs dual roles, as it regulates Six3+ rostral polarization at an earlier stage and promotes Wnt signaling at a later stage. The Wnt signaling components are differentially expressed in the polarized tissues, leading to genome-wide Irx3+ caudal-polarization signals. Surprisingly, differentially expressed Wnt agonists and antagonists have essential roles in orchestrating the formation of a balanced rostral-caudal neuroectoderm pattern. Together, our findings provide key processes for dynamic self-patterning and evidence that a temporally and locally regulated interaction between Fgf and Wnt signaling controls self-patterning in ESC-derived neuroectoderm.

2017-08-05 | GSE72520 | GEO

Ontogenetically distinct neutrophils differ in function and transcriptional profile in zebrafish

Project description:The current view of hematopoiesis considers leukocytes on a continuum with distinct developmental origins, and which exert non-overlapping functions. However, there is little information about ontogenetically distinct neutrophil populations. In this work, using a photoconvertible transgenic zebrafish line; Tg(mpx:Dendra2), we selectively label rostral blood island-derived and caudal hematopoietic tissue-derived neutrophils in vivo during steady state or upon injury. By comparing the migratory properties and single-cell expression profiles of both neutrophil populations at steady state we reveal that rostral neutrophils show higher csf3b expression and migration capacity than caudal neutrophils. Upon injury, both populations share a core transcriptional profile as well as subset-specific transcriptional signatures. Accordingly, both rostral and caudal neutrophils are recruited to the wound independently of their distance to the injury. While rostral neutrophils respond uniformly, caudal neutrophils respond heterogeneously. Collectively, our results reveal that co-existing neutrophils populations with ontogenically distinct origin display key functional differences.

2023-08-07 | GSE239880 | GEO

Comparison of Rostral, Middle, and Caudal E13.5 murine neocortex

Project description:Rostral, Middle, and Caudal thirds of E13.5 murine neocortex are compared Keywords: Tissue comparison

2005-08-26 | GSE2856 | GEO

Comparison of Rostral and Caudal murine neocortex at E13.5

Project description:Rostral and caudal thirds of E13.5 neocortex are compared in both inbred (C57) and oubred (MF1) mice. Keywords: Tissue comparison

2005-08-26 | GSE2855 | GEO

Comparison of Rostral and Caudal murine neocortex at E11.5

Project description:Rostral and caudal thirds of E11.5 neocortex are compared in both inbred (C57) and oubred (MF1) mice. Keywords: Tissue comparison

2005-08-26 | GSE2854 | GEO

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