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Epidermal basal domains organization highlights skin robustness to environmental exposure [scRNA-seq]

ABSTRACT: Purpose: To unravel the molecular heterogeneity and characterise cell states of LRC/Non-LRC domains in interfollicular epidermis in vivo Methods: We performed 10x genomics single-cell RNA sequencing (scRNA-seq) of FACS purified basal (Sca1+/alpha6-integrin+) IFE cells as H2BGFP LRCs, mid-LRCs, and non-LRCs from K5-tTA x pTRE-H2BGFP mice. Single-cell suspension from back (2-week chase) and tail skin (3-week chase) was processed for the barcoded single-cell 3′ cDNA libraries generation using Chromium Single Cell 3′ gel bead and library Kit v3. The final libraries were quantified using Agilent Bioanalyzer high sensitivity DNA chip and sequenced using an Illumina NextSeq-500. The raw data files were demultiplexed to generate the sample-specific FASTQ files, which were aligned to the mouse reference genome (mm10-3.0.0) using the 10x Genomics Cell Ranger pipeline (v3.1.0). The raw scRNA-seq data was processed using Cell Ranger from the 10x platform to generate an expression matrix that was further analyzed in R using the Seurat package version 3.1. Only high-quality cells that had between 200 and 5000 genes expressed and had under 10% of the UMIs mapped to mitochondrial genes were retained. Results: We obtained a total of 13484 and 14884 high quality cells from two different skin types after combining two datasets each from LRCs/mid-LRCs/Non-LRCs for further analysis by Seurat workflow Conclusions: Obtained high quality single cell transcriptomic data to dissect molecular and proliferative heterogeneity of interfollicular epidermis (IFE)

ORGANISM(S): Mus musculus

PROVIDER: GSE205745 | GEO | 2022/07/05

REPOSITORIES: GEO

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High resolution single cell transcriptomics reveals heterogeneity of self-renewing hair follicle stem cells

Project description:Purpose: To dissect the transcriptomic profiles and unravel population-specific transcriptional heterogeneity of self renewing hair follicle stem cells in vivo Methods: We performed 10x genomics single-cell RNA sequencing (scRNA-seq) of FACS sorted CD34+/K14-H2BGFP+ hair follicle stem cells from mouse skin at mid-anagen. FACS purified CD34+/K14-H2BGFP+ single-cell suspension was processed for the barcoded single-cell 3′ cDNA libraries generation using Chromium Single Cell 3′ gel bead and library Kit v3. The final libraries were quantified using Agilent Bioanalyzer high sensitivity DNA chip and sequenced using an Illumina NextSeq-500. The raw data files were demultiplexed to generate the sample-specific FASTQ files, which were aligned to the mouse reference genome (mm10-3.0.0) using the 10x Genomics Cell Ranger pipeline (v3.1.0). The raw scRNA-seq data was processed using Cell Ranger from the 10x platform to generate an expression matrix that was further analyzed in R using the Seurat package version 3.1. Only high-quality cells that had between 200 and 5000 genes expressed and had under 10% of the UMIs mapped to mitochondrial genes were retained. Results: We obtained a total of 6736 high quality cells from two datasets for further analysis by Seurat workflow Conclusions: Obtained high quality single cell transcriptomic data to dissect molecular heterogeneity of hair follicle stem cells

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"Alk1 acts in non-endothelial VE-cadherin+ perineurial cells to maintain nerve branching during hair homeostasis" and "Blood endothelial ALK1-BMP4 signaling axis regulates adult hair follicle stem cell activation"

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2023-03-01 | GSE211381 | GEO

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2021-11-16 | E-MTAB-10231 | biostudies-arrayexpress

Troy/Tnfrsf19 marks epidermal cells that govern interfollicular epidermal renewal and cornification

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Expression data from sorted interfollicular basal cells (alpha6 integrin-high/CD34-neg) from K14CREER and InvCREER/RosaYFP induced mice

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