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Dermal TRPV1 innervations engage a macrophage and fibroblast containing pathway to activate hair growth [dataset1]

ABSTRACT: Dermal TRPV1 innervations engage a macrophage and fibroblast containing pathway to activate hair growth [dataset1]

PROVIDER: PRJNA1105363 | ENA |

REPOSITORIES: ENA

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Dermal TRPV1 innervations engage a macrophage and fibroblast containing pathway to activate hair growth [dataset1]

Project description:Pain, detected by nociceptors, is an integral part of injury, yet whether and how it can impact tissue physiology and recovery remain understudied. Here we applied chemogenetics in mice to locally activate dermal TRPV1 innervations in naïve skin and found it triggered new regenerative cycling by dormant hair follicles (HFs).This was preceded by rapid apoptosis of dermal macrophages, mediated by the neuropeptide calcitonin gene-related peptide (CGRP). TRPV1 activation also triggered a macrophage-dependent induction of Spp1-expressing dermal fibroblasts. The neuropeptide CGRP andSpp1were essential for the nociceptor-triggered hair growth. Finally, we show that epidermal abrasion injury induced Spp1-expressing dermal fibroblasts and hair growth via a TRPV1 neuron and CGRP dependent mechanism.Collectively, these data demonstrate a role for TRPV1 nociceptors in orchestrating a macrophage and fibroblast-supported mechanism to promote hair growth, and enabling the efficient restoration of this mechano- and thermo-protective barrier after wounding.

2024-05-10 | GSE266027 | GEO

Dermal TRPV1 innervations engage a macrophage and fibroblast containing pathway to activate hair growth [dataset2]

2024-05-10 | GSE266028 | GEO

Dermal TRPV1 innervations engage a macrophage and fibroblast containing pathway to activate hair growth [dataset2]

Project description:Dermal TRPV1 innervations engage a macrophage and fibroblast containing pathway to activate hair growth [dataset2]

| PRJNA1105362 | ENA

TRPV1 SUMOylation suppresses itch by inhibiting TRPV1 interaction with H1 receptors

Project description:To examine the functional significance of TRPV1 SUMOylation in vivo, we created a TRPV1K823R KI transgenic mouse line.We thus performed gene expression profiling analysis using data obtained from RNA-seq of the trigeminal ganglion of TRPV1K823R and control mouse models . Our analyses unveiled a role for TRPV1 SUMOylation in regulating gene networks related to the pain and itch pathway.

2022-06-14 | GSE203197 | GEO

The transcriptome of TRPV1-positive sensory neurons revealed by subgroup-elimination transcriptomics

2015-12-30 | E-MTAB-2789 | biostudies-arrayexpress

The transcriptome of TRPV1-positive sensory neurons revealed by subgroup-elimination transcriptomics

Project description:We developed an approach to rapidly eliminate the subgroup of sensory neurons expressing the heat-gated cation channel TRPV1 from dissociated rat sensory ganglia using agonist treatment followed by density centrifugation. To identify transcripts predomintly expressed in TRPV1-positive neurons, we compared the transcriptome of all cells within sensory ganglia versus all cells without TRPV1 expressing neurons using RNA-Seq. Four replicate experiments with RNA from DRG neurons of one rat per experiment were performed. Dissociated neurons were split up in three parts, treated with solvent DMSO (0.1%), casaicin (10 µM), or RTX (100 nM) for 30 min followed by gradient centrifugation. RNA was extracted from the remaining pellet containing either all cells or all cells without TRPV1-positive neurons.

2015-05-12 | E-GEOD-59727 | biostudies-arrayexpress

TRPV1 SUMOylation suppresses itch by inhibiting TRPV1 interaction with H1 receptors

Project description:TRPV1 SUMOylation suppresses itch by inhibiting TRPV1 interaction with H1 receptors

| PRJNA838996 | ENA

Alternative splicing of the TRPV1 gene underlies infrared sensation in vampire bats

Project description:Vampire bats and snakes have taken thermosensation to the extreme by developing specialized systems for detecting infrared radiation. As such, these creatures provide a window into the molecular and genetic mechanisms underlying evolutionary tuning of thermoreceptors in a species or cell type specific manner. In each case, robust thermal sensitivity likely reflects specialized anatomical features of infrared sensing pit organs, as well as intrinsic heat sensitivity of trigeminal nerve fibers that innervate these structures. Here we show that vampire bats use a molecular strategy involving alternative splicing of the TRPV1 gene to generate a channel specifically within trigeminal ganglia that has a reduced thermal activation threshold. Selective expression of splicing factors in trigeminal, but not dorsal root ganglia, together with unique organization of the vampire bat TRPV1 gene underlies this mechanism of sensory adaptation. Comparative genomic analysis of the TRPV1 locus supports phylogenetic relationships within the proposed Pegasoferae clade of mammals. Gene expression measurements implicate a TRPV1 splice isoform as the heat-sensitive channel in vampire bats

2011-08-04 | E-GEOD-28243 | biostudies-arrayexpress

The transcriptome of TRPV1-positive sensory neurons revealed by subgroup-elimination transcriptomics

2015-05-12 | GSE59727 | GEO

ENGAGE Transcriptomics Flagship

Project description:ENGAGE Transcriptomics Flagship

| PRJEB3108 | ENA