Project description:Here we performed a ChIP-seq experiment for Tlx3 trancription factor on a sample of mouse embryonic dorsal spinal cord. The result is the generation of the genome-wide maps for Tlx3 binding to chromatin in dILB neurones of the developing dorsal horn.
Project description:This experiment aims at characterizing the transcriptome of embryonic mouse dorsal spinal cord. Dorsal spinal cords dissected from litters of E14.5 wild type embryos of unknown sex were processed for RNA extraction using Trizol and RNeasy Mini kit (Qiagen) extraction procedures. Five replicates of wild type embryos were analyzed, each sample with tissue pooled from three embryos.
Project description:An exquisite example of form serving function is the dorsal horn of the spinal cord, the gateway to the central nervous system for sensory information from the body. Each sensory input to the dorsal horn targets a specific address within its laminated arrangement of diverse neuronal populations. However, it is not known how this organization emerges during development from an apparently homogenous pool of neural progenitors. Here, we found that both the excitatory and inhibitory cell families of the mouse dorsal horn were born in successive waves as temporal cohorts. The excitatory families then settled into a chronotopic map that transformed their birth order into the dorsal laminae. Diversification of families into refined neuron types was mediated by a dorsal-ventral progenitor gradient of Zic transcription factors. This work uncovered fundamental temporal and spatial factors that establish the cell types and structure of the spinal cord dorsal horn.
Project description:An exquisite example of form serving function is the dorsal horn of the spinal cord, the gateway to the central nervous system for sensory information from the body. Each sensory input to the dorsal horn targets a specific address within its laminated arrangement of diverse neuronal populations. However, it is not known how this organization emerges during development from an apparently homogenous pool of neural progenitors. Here, we found that both the excitatory and inhibitory cell families of the mouse dorsal horn were born in successive waves as temporal cohorts. The excitatory families then settled into a chronotopic map that transformed their birth order into the dorsal laminae. Diversification of families into refined neuron types was mediated by a dorsal-ventral progenitor gradient of Zic transcription factors. This work uncovered fundamental temporal and spatial factors that establish the cell types and structure of the spinal cord dorsal horn.
Project description:To identify differentially expressed genes in the developmental mouse dorsal spinal cord, we characterized the global gene expression profiling of mouse embryonic dorsal spinal cord commissural neurons at E10.5, E11.5 and E12.5. We used the Affymetrix Mouse Exon 1.0 ST Array platform to analyze the gene expression profiling. We included the gene expression data obtained from dorsal spinal cord commissural neuron at different embryonic stage. 2 Biological replicates were performed.
Project description:To comprehensively elucidate metabolite changes in different anatomical structures (e.g., gray matter and white matter) after spinal cord injury(SCI), our study utilized air-flow-assisted desorption electrospray ionization mass spectrometry imaging platforms to perform untargeted metabolomic studies. These analyzes are designed to identify metabolites critical in spinal cord injury. confirmed the profile differences in white and gray matter as well as in ventral and dorsal horns after SCI. These results provide valuable information for understanding in situ metabolite alterations after SCI.
Project description:The human spinal cord contains diverse cell types, governed by a series of spatiotemporal events for tissue assembly and functions. However, the regulation of cell fate specification in the human developing spinal cord remains largely unknown. By performing single-cell and spatial multi-omics methods, we integrated the datasets and created a comprehensive human developmental atlas of the first trimester spinal cord. Unexpectedly, we discovered unique events in human spinal cord development, including early loss of active neural stem cells, simultaneous occurrence of neurogenesis and gliogenesis, and distinct spatiotemporal genetic regulations of fate choices. We also identified distinct regulations of cancer stem cells in ependymomas from our atlas. Thus, we demonstrate spatiotemporal genetic regulation of human spinal cord development and its potential to understand novel disease mechanisms.
Project description:The human spinal cord contains diverse cell types, governed by a series of spatiotemporal events for tissue assembly and functions. However, the regulation of cell fate specification in the human developing spinal cord remains largely unknown. By performing single-cell and spatial multi-omics methods, we integrated the datasets and created a comprehensive human developmental atlas of the first trimester spinal cord. Unexpectedly, we discovered unique events in human spinal cord development, including early loss of active neural stem cells, simultaneous occurrence of neurogenesis and gliogenesis, and distinct spatiotemporal genetic regulations of fate choices. We also identified distinct regulations of cancer stem cells in ependymomas from our atlas. Thus, we demonstrate spatiotemporal genetic regulation of human spinal cord development and its potential to understand novel disease mechanisms.