Continuous exposure of the skin to environmental, mechanical and chemical stress necessitates constant self-renewal of the epidermis to maintain its barrier function. This self-renewal ability is attributed to epidermal stem cells (EPSCs), which are long-lived, multipotent cells located in the basal layer of the epidermis. Epidermal homeostasis – coordinated proliferation and differentiation of EPSCs – relies on fine-tuned adaptations in gene expression which in turn are tightly associated with specific epigenetic signatures and metabolic requirements. In this review, we will briefly summarize basic concepts of EPSC biology and epigenetic regulation with relevance to epidermal homeostasis. We will highlight the intricate interplay between mitochondrial energy metabolism and epigenetic events – including miRNA-mediated mechanisms – and discuss how the loss of epigenetic regulation and epidermal homeostasis manifests in skin disease. Discussion of inherited epidermolysis bullosa (EB) and disorders of cornification will focus on evidence for epigenetic deregulation and failure in epidermal homeostasis, including stem cell exhaustion and signs of premature ageing. We reason that the epigenetic and metabolic component of epidermal homeostasis is significant and warrants close attention. Charting epigenetic and metabolic complexities also represents an important step in the development of future systemic interventions aimed at restoring epidermal homeostasis and ameliorating disease burden in severe skin conditions.

Epigenetic and metabolic regulation of epidermal homeostasis / Wagner, R. N.; Pinon Hofbauer, J.; Wally, V.; Kofler, B.; Schmuth, M.; De Rosa, L.; De Luca, M.; Bauer, J. W.. - In: EXPERIMENTAL DERMATOLOGY. - ISSN 0906-6705. - 30:8(2021), pp. 1009-1022. [10.1111/exd.14305]

Epigenetic and metabolic regulation of epidermal homeostasis

De Rosa L.;De Luca M.;
2021

Abstract

Continuous exposure of the skin to environmental, mechanical and chemical stress necessitates constant self-renewal of the epidermis to maintain its barrier function. This self-renewal ability is attributed to epidermal stem cells (EPSCs), which are long-lived, multipotent cells located in the basal layer of the epidermis. Epidermal homeostasis – coordinated proliferation and differentiation of EPSCs – relies on fine-tuned adaptations in gene expression which in turn are tightly associated with specific epigenetic signatures and metabolic requirements. In this review, we will briefly summarize basic concepts of EPSC biology and epigenetic regulation with relevance to epidermal homeostasis. We will highlight the intricate interplay between mitochondrial energy metabolism and epigenetic events – including miRNA-mediated mechanisms – and discuss how the loss of epigenetic regulation and epidermal homeostasis manifests in skin disease. Discussion of inherited epidermolysis bullosa (EB) and disorders of cornification will focus on evidence for epigenetic deregulation and failure in epidermal homeostasis, including stem cell exhaustion and signs of premature ageing. We reason that the epigenetic and metabolic component of epidermal homeostasis is significant and warrants close attention. Charting epigenetic and metabolic complexities also represents an important step in the development of future systemic interventions aimed at restoring epidermal homeostasis and ameliorating disease burden in severe skin conditions.
2021
30
8
1009
1022
Epigenetic and metabolic regulation of epidermal homeostasis / Wagner, R. N.; Pinon Hofbauer, J.; Wally, V.; Kofler, B.; Schmuth, M.; De Rosa, L.; De Luca, M.; Bauer, J. W.. - In: EXPERIMENTAL DERMATOLOGY. - ISSN 0906-6705. - 30:8(2021), pp. 1009-1022. [10.1111/exd.14305]
Wagner, R. N.; Pinon Hofbauer, J.; Wally, V.; Kofler, B.; Schmuth, M.; De Rosa, L.; De Luca, M.; Bauer, J. W.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1247782
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