From a non-public scRNAseq study, oral mucosal epithelial cells (including tongue-derived epithelial cells) were defined by expression of SFN, KRT6A, and KRT10. Assessment of SFN (A), KRT6A (B), and KRT10 (C) expression in tongue cells sequenced in the Tabula Muris study (Tabula Muris Consortium et al., 2018). Each gene is most strongly expressed in murine tongue keratinocytes, with expression in basal epidermal cells as well.