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. 2021 Jul 26;9:682143. doi: 10.3389/fcell.2021.682143

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Copyright © 2021 Pereira and Sequeira.

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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Expression pattern of keratins and others markers on the adult mouse skin, oesophagus and oral epithelia. Schematic of epithelial layers and respective expression markers for (A) skin, (B) oesophageal, (C) buccal mucosa, and (D) dorsal tongue epithelia. During normal epithelial homeostasis, epithelial cells proliferate on the basal layer (blue) and keratinocyte differentiation (yellow) is accompanied by an upward migration through the suprabasal layers, replacing dead cells that shed from the epithelium surface. *Expressed only on ear, sole and tail skin; ^#expressed only on sole and palm skin; ^§expressed only on paw skin.