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. 2022 Jan 7;12:797747. doi: 10.3389/fgene.2021.797747

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Copyright © 2022 Ahlers, Falckenhayn, Holzscheck, Solé-Boldo, Schütz, Wenck, Winnefeld, Lyko, Grönniger and Siracusa.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Subpopulation 4a represents the dermal sheath (DS). (A) RNA-FISH co-staining of subpopulation 4a marker DPEP1 with PDGFRA, n = 5. (B) Mesoderm-derived cell types of the hair follicle: DS cells, dermal papilla (DP) cells. Average expression of top 10 DS signature genes (CCDC80, COL11A1, TNMD, LRRC15, COL12A1, FGL2, CD200, FAM101B, SPARC, IGFBP7) (Shin et al., 2020) (C) among all cell types in Uniform Manifold Approximation and Projection (UMAP) plot and (D) among fibroblast populations in dot plot. (E) Expression of DS-specific genes COL11A1 and ACAN among all cell types in UMAP plots. (F) Dot plot of the expression of DS marker genes ACTA2 (A) and TAGLN (T) among fibroblast populations. % expr. Percent expressed, expr. average expression, Mel melanocytes, Per pericytes.