Impact of c-JUN deficiency on thalamus development in mice and human neural models
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ABSTRACT:
PROVIDER: PRJNA1019730 | ENA |
REPOSITORIES: ENA
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Project description:c-Jun is a gene expression regulator. By forming homo- or heterodimer, c-Jun binds to DNA and regulates gene transcription. c-Jun is deeply involved in embryonic development but its effect on nervous system development especially in higher mammal is unclear. In this study, we combined H1ESC derived neural progenitor cells (NPCs), cerebral organoids (COs) and mouse model to study the role of c-Jun in early nervous system development. c-Jun KO promoted NPCs induction and differentiation while weakened NPCs’ adhesion ability. c-Jun KO COs got more robust neural ectoderm and expanded Pax6+/Nestin+ cortex-like layer while less tight junctional core. c-Jun KO mouse embryos on E14.5 showed malformation of thalamus in diencephalon with tight junction loose and cell lose. Taken together, the consistent trend in three models implied that c-Jun deletion promoted neural differentiation while weakened the tight junctions. The thalamus/diencephalon was vulnerable to dysplasia when lose c-Jun in early mouse embryonic development.
2024-12-20 | GSE243735 | GEO
Project description:c-Jun is a gene expression regulator. By forming homo- or heterodimer, c-Jun binds to DNA and regulates gene transcription. c-Jun is deeply involved in embryonic development but its effect on nervous system development especially in higher mammal is unclear. In this study, we combined H1ESC derived neural progenitor cells (NPCs), cerebral organoids (COs),Thalamus Organoids(ThOs) and mouse model to study the role of c-Jun in early nervous system development. c-Jun KO promoted NPCs induction and differentiation while weakened NPCs’ adhesion ability. c-Jun KO COs got more robust neural ectoderm and expanded Pax6+/Nestin+ cortex-like layer while less tight junctional core. c-Jun KO mouse embryos on E14.5 showed malformation of thalamus in diencephalon with tight junction loose and cell lose. Taken together, the consistent trend in three models implied that c-Jun deletion promoted neural differentiation while weakened the tight junctions. The thalamus/diencephalon was vulnerable to dysplasia when lose c-Jun in early mouse embryonic development.
2024-12-20 | GSE260732 | GEO
Project description:Impact of c-JUN deficiency on thalamus development in mice and human neural models [ATACseq, RNAseq, CUT&Tag]
| PRJNA1083042 | ENA
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:Analysis of thalamus and hypothalamus under conditions of visual deprivation by dark-rearing (DR). Animals subjected to DR from birth till postnatal day (P) 14. Results provide insight into the role of visual inputs in the regulation of gene expression in thalamus and hypothalamus during development. RNA sample was taken from thalamus and hypothalamus of 14-day-old mouse reared in standard or dark condition. Comparisons among groups were made by one-color method with normalized data from Cy3 channels for data analysis.
2014-01-26 | E-GEOD-53136 | biostudies-arrayexpress
Project description:To further dissect whether and how activated JUN reconfigures the chromatin landscape, we performed Chromatin Immunoprecipitation (ChIP)-seq analyses for H3K4me1 and H3K27ac. Based on the significant increase of H3K27ac levels at H3K4me1+ sites, we identified 3,017 JUN-activated enhancers in JUN WT cells. In contrast, JUN AA fails to significantly induce H3K27ac accumulation at these regions. Their enrichment levels at JUN-activated enhancers were significantly decreased after JNKi treatment. Besides, these enhancers are directly driven by JUN, especially phosphorylated JUN.
2022-12-09 | GSE196345 | GEO
Project description:To examine the effects of phosphorylated JUN-mediated enhancers activation on gene expression, we conducted RNA-seq analysis in JUN wildtype (WT) or JUN inactive mutant (JUN AA) overexpressed MRC5 cells. The expression levels of genes associated with JUN-activated enhancers are significantly upregulated in JUN WT cells rather than in JUN AA cells. To quantify the effects of JUN inactivation on gene expression, we also performed RNA-seq analysis in JNKi-treated induced CAFs (iCAFs). We observed that JNKi significantly reduced expression levels of JUN-activated enhancers-associated genes.
2022-12-09 | GSE196351 | GEO
Project description:Genome-wide maps of H3K27ac, H3K4me1, JUN and p-JUN in JUN overexpressed or JUN inactivated fibroblasts
| PRJNA804495 | ENA
Project description:Analysis of thalamus and hypothalamus under conditions of visual deprivation by dark-rearing (DR). Animals subjected to DR from birth till postnatal day (P) 14. Results provide insight into the role of visual inputs in the regulation of gene expression in thalamus and hypothalamus during development.
2014-01-26 | GSE53136 | 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. Keywords: brain region comparative analysis
2008-05-01 | GSE6708 | GEO