Gbx2 is essential for maintaining thalamic neuron identity and repressing habenular characters in the developing thalamus
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE71690 | GEO | 2015/12/01
SECONDARY ACCESSION(S): PRJNA291823
REPOSITORIES: GEO
Similar Datasets
Project description: Not available
| S-EPMC4641819 | biostudies-literature
Project description:Gbx2 is essential for maintaining thalamic neuron identity and repressing habenular characters in the developing thalamus
| PRJNA291823 | ENA
Project description:Gliomas arising in the brainstem and thalamus are devastating tumors that are difficult to surgically resect due to their proximity to eloquent brain structures. Here, we performed a comprehesive genomic and epigenomic study, using gene expression and methylation microarrays, to research on th different genomic and epigenetic signatures between brainstem, thalamic, and supratentorial gliomas. Comparison of brainstem, thalamic and supratentorial gliomas
2014-05-27 | E-GEOD-50774 | biostudies-arrayexpress
Project description:We profiled the transcriptome of 22 thalamic nuclei. Nuclei were retrogradely labeled from their forebrain target areas, microdissected and fluorescent cells pooled. Anterograde tracing was used when identification of nuclear boundaries was ambiguous. We found that thalamic nuclei share a common axis of variance closely linked to the mediolateral spatial axis of thalamus. This axis was enriched in functionally relevant genes such as neurotransmitter receptors and ion channels, and was closely linked to functional and morphological properties of the neurons.
2019-08-21 | GSE133911 | GEO
Project description:Human brain organoid techniques have rapidly advanced to facilitate investigating human brain development and diseases. Recent reports in generation and fusion of regionally defined brain organoids provide further opportunities to investigate the specific brain domains and their interactions. Focus of brain organoids has been to generate telencephalon due to its direct relevance in a variety of forebrain disorders. Despite its importance as a relay hub between cortex and peripheral tissues, the investigation of three-dimensional (3D) organoid model for the human thalamus has not yet been explored. Here, we describe a method to differentiate human embryonic stem cells (hESCs) to the thalamic organoids (hThOs) that specifically recapitulate the development of thalamus. Single-cell RNA sequencing (scRNA-seq) revealed a formation of distinct thalamic lineage cells, a lineage divergence from telencephalic lineage. Importantly, we developed a 3D system to create the reciprocal projections between thalamus and cortex by fusing the two distinct region-specific organoids representing the developing thalamus or cortex. Our study provides a platform for understanding human thalamic development and modeling circuit organizations and related disorders in the brain.
2018-12-20 | GSE122342 | GEO
Project description:The thalamus is the principal information hub of the vertebrate brain, with essential roles in sensory and motor information processing, attention, and memory. The complex array of thalamic nuclei develops from a restricted pool of neural progenitors. We apply longitudinal single-cell RNA-sequencing and regional abrogation of Sonic hedgehog (Shh) to map the developmental trajectories of thalamic progenitors, intermediate progenitors, and post-mitotic neurons as they coalesce into distinct thalamic nuclei. These data reveal that the complex architecture of the thalamus is established early during embryonic brain development through the coordinated action of four cell differentiation lineages derived from Shh-dependent and independent progenitors. We systematically characterize the gene expression programs that define these thalamic lineages across time and demonstrate how their disruption upon Shh depletion causes pronounced locomotor impairment resembling infantile Parkinson’s disease. These results reveal key principles of thalamic development and provide mechanistic insights into neurodevelopmental disorders resulting from thalamic dysfunction.
2022-10-16 | GSE211701 | GEO
Project description:Nuclei of the mammalian thalamus are aggregations of neurons with unique architectures and input-output connections, yet the molecular determinants of their organizational specificity remain unknown. By comparing expression profiles of thalamus and cerebral cortex in adult rhesus monkeys we identified transcripts that are unique to dorsal thalamus or to individual nuclei within it. Real-time quantitative polymerase chain reaction and in situ hybridization analyses confirmed the findings. Expression profiling of individual nuclei microdissected from the dorsal thalamus revealed additional subsets of nucleus-specific genes. Functional annotation using Gene Ontology (GO) vocabulary and Ingenuity Pathway analysis revealed over-representation of GO categories related to development, morphogenesis, cell-cell interactions, and extracellular matrix within the thalamus- and nucleus-specific genes-many involved in the Wnt signaling pathway. Examples included the transcription factor TCF7L2, localized exclusively to excitatory neurons, a calmodulin-binding protein PCP4, the bone extracellular matrix molecules SPP1 and SPARC, and other genes involved in axon outgrowth and cell matrix interactions. Other nucleus-specific genes such as CBLN1 are involved in synaptogenesis. The genes identified likely underlie nuclear specification, cell phenotype and connectivity during development and their maintenance in the adult thalamus. Experiment Overall Design: To determine the molecular underpinnings of nuclear specificity in the dorsal thalamus we isolated micro-punches of tissue from nucleus-specific regions and processed them for microarray analysis. Replicate samples from 5 separate dorsal thalamic nuclei were processed and compared to identify genes unique to each region. Affymetrix U133A Gene Chips were used. All of the samples were isolated from untreated adult monkey brain.
2008-06-15 | E-GEOD-6708 | biostudies-arrayexpress
Project description:Acupuncture stimulations at GB34 and LR3 inhibit the reduction of tyrosine hydroxylase in the nigrostriatal dopaminergic neurons in the parkinsonism animal models. Especially, behavioral tests showed that acupuncture stimulations improved the motor dysfunction in a previous study. The thalamus is a crucial area for the motor circuit and has been identified as one of the most markedly damaged areas in Parkinson’s disease (PD), so acupuncture stimulations might also have an effect on the thalamic damage. We investigated gene expression profile changes in the thalamic region of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism models after acupuncture at the acupoints GB34 and LR3 C57BL/6 mice were divided into four experimental groups; ① C: Control, ② M: MPTP-treatment only, ③ MA: MPTP- and acupuncture-treatment at acupoints GB34 and LR3, ④ MNA: MPTP- and acupuncture-treatment at non-acupoints. Total RNA was isolated from two brains' thalamic regions of each experimental group (4 experimental group × 2 samples of each experimental group = total 8 samples).
2012-01-18 | E-GEOD-35138 | biostudies-arrayexpress
Project description:Gliomas arising in the brainstem and thalamus are devastating tumors that are difficult to surgically resect due to their proximity to eloquent brain structures. Here, we performed a comprehesive genomic and epigenomic study, using gene expression and methylation microarrays, to research on th different genomic and epigenetic signatures between brainstem, thalamic, and supratentorial gliomas.
2014-05-27 | GSE50774 | GEO
Project description:Acupuncture stimulations at GB34 and LR3 inhibit the reduction of tyrosine hydroxylase in the nigrostriatal dopaminergic neurons in the parkinsonism animal models. Especially, behavioral tests showed that acupuncture stimulations improved the motor dysfunction in a previous study. The thalamus is a crucial area for the motor circuit and has been identified as one of the most markedly damaged areas in Parkinson’s disease (PD), so acupuncture stimulations might also have an effect on the thalamic damage. We investigated gene expression profile changes in the thalamic region of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism models after acupuncture at the acupoints GB34 and LR3
2012-01-18 | GSE35138 | GEO