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Gene expression profile at single cell level of trigeminal ganglion non-neuronal cells

ABSTRACT: Gene expression profile at single cell level of trigeminal ganglion non-neuronal cells

PROVIDER: PRJNA1003788 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25581658.fastq.gz	Fastqsanger.gz
	SRR25581659.fastq.gz	Fastqsanger.gz
	SRR25581660.fastq.gz	Fastqsanger.gz
	SRR25581661.fastq.gz	Fastqsanger.gz
	SRR25581662.fastq.gz	Fastqsanger.gz

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Gene expression profile at single cell level of trigeminal ganglion non-neuronal cells

Project description:Trigeminal ganglion non-neuronal cells contain glial, endothelila, smooth muscle, immune cells and fibroblasts.

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The transcriptional landscape of the developing chick trigeminal ganglion

Project description:The trigeminal ganglion is a critical structure in the peripheral nervous system, responsible for transmitting sensations of touch, pain, and temperature from craniofacial regions to the brain. Trigeminal ganglion development depends upon intrinsic cellular programming as well as extrinsic signals exchanged by diverse cell populations. With its complex anatomy and dual cellular origin from cranial placodes and neural crest cells, the trigeminal ganglion offers a rich context for examining diverse biological processes, including cell migration, fate determination, adhesion, and axon guidance. Avian models have, so far, enabled key insights into craniofacial and peripheral nervous system development. Yet, the molecular mechanisms driving trigeminal ganglion formation and subsequent nerve growth remain elusive. In this study, we performed RNA-sequencing at multiple stages of chick trigeminal ganglion development and generated a novel transcriptomic dataset that has been curated to illustrate temporally dynamic gene expression patterns. This publicly available resource identifies major pathways involved in trigeminal gangliogenesis, particularly with respect to the condensation and maturation of placode-derived neurons, thus inviting new lines of research into the essential processes governing trigeminal ganglion development.

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Project description:The sensitization of trigeminal ganglion neurons contributes to primary headache disorders such as migraine, but the specific neuronal and non-neuronal trigeminal subtypes involved remain unclear. We thus developed a cell atlas in which human and mouse trigeminal ganglia are transcriptionally and epigenomically profiled at single-cell resolution. These data describe evolutionarily conserved and human-specific gene expression patterns within each trigeminal ganglion cell type, as well as the transcription factors and gene regulatory elements that contribute to cell-type-specific gene expression. We then leverage these data to identify trigeminal ganglion cell types that are implicated both by human genetic variation associated with migraine and two mouse models of headache. This trigeminal ganglion cell atlas improves our understanding of the cell types, genes, and epigenomic features involved in headache pathophysiology and establishes a rich resource of cell-type-specific molecular features to guide the development of more selective treatments for headache and facial pain.

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Project description:Orofacial inflammation could lead to transcriptional alterations in the trigeminal ganglion (TG). In this study, we performed single-cell RNA-sequencing (scRNA-seq) analysis of mouse TG to identify all cell types and profile transcriptomic alterations of TG cells under inflammatory conditions. A total of 7 types of cells including endothelial cells, fibroblasts, glial cells, granulocytes, lymphocytes, monocyte-macrophages and several subtypes of neurons were identified. In addition, we performed annotation of neuronal subtypes and differential gene expression analysis among TG neurons, identifying several differential genes involved in pain modulation such as Scn10a, Zbtb20 and Runx1. Collectively, our study revealed the heterogeneity of TG cells and diverse neuronal transcriptomic responses to orofacial inflammation, which aids in the development of novel therapeutics for orofacial inflammatory pain.

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