The bigger picture: Why oral mucosa heals better than skin

M. Waasdorp, B.P. Krom, F.J. Bikker, P.P.M. van Zuijlen, F.B. Niessen, S. Gibbs

Research output: Contribution to JournalReview articleAcademicpeer-review

Abstract

© 2021 by the authors. Licensee MDPI, Basel, Switzerland.Wound healing is an essential process to restore tissue integrity after trauma. Large skin wounds such as burns often heal with hypertrophic scarring and contractures, resulting in disfigurements and reduced joint mobility. Such adverse healing outcomes are less common in the oral mucosa, which generally heals faster compared to skin. Several studies have identified differences between oral and skin wound healing. Most of these studies however focus only on a single stage of wound healing or a single cell type. The aim of this review is to provide an extensive overview of wound healing in skin versus oral mucosa during all stages of wound healing and including all cell types and molecules involved in the process and also taking into account environmental specific factors such as exposure to saliva and the microbiome. Next to intrinsic properties of resident cells and differential expression of cytokines and growth factors, multiple external factors have been identified that contribute to oral wound healing. It can be concluded that faster wound closure, the presence of saliva, a more rapid immune response, and increased extracellular matrix remodeling all contribute to the superior wound healing and reduced scar formation in oral mucosa, compared to skin.
Original languageEnglish
Article number1165
JournalBiomolecules
Volume11
Issue number8
DOIs
Publication statusPublished - 1 Aug 2021

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