Single-cell suspensions were prepared from vibrissa hair bulge from the back skin
of experimental mice, according to a previously established method (Takeo et al., 2021 (link)). Cells were then
resuspended in PBS containing 0.5% BSA, and stained with FITC anti-mouse CD34
antibody (Thermo Fisher Scientific) and PE anti-mouse CD49f antibody (Thermo
Fisher Scientific) for 15 min at 4°C. After staining, cells were analyzed
by flow cytometry using BD FACSLyricTM (BD Biosciences, Mountain
View, CA, USA) with BD FlowJoTM software (BD Biosciences).