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Review Article: Adaptive response of the skin to UVB damage: role of the p53 protein

Synopsis: Different adaptation mechanisms like heat shock response, cell cycle arrest and DNA repair, melanin pigmentation and thickening of the epidermis are present in the human skin to protect against the adverse effects of solar UV irradiation. When DNA damage is beyond repair, cells undergo apo...

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Bibliographic Details
Published in:International journal of cosmetic science 2006-02, Vol.28 (1), p.1-7
Main Authors: Verschooten, L, Declercq, L, Garmyn, M
Format: Article
Language:English
Online Access:Get full text
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Summary:Synopsis: Different adaptation mechanisms like heat shock response, cell cycle arrest and DNA repair, melanin pigmentation and thickening of the epidermis are present in the human skin to protect against the adverse effects of solar UV irradiation. When DNA damage is beyond repair, cells undergo apoptosis to prevent their replication. We discuss the current knowledge on these different adaptation mechanisms to UVB damage, the most energetic fraction of solar UV that reaches the skin. As p53 protein, the guardian of the genome, plays a key role in protective response to genotoxic damage, its role in this adaptive response of the skin to UV will be further discussed.Original Abstract: Pour se proteger contre les effets nefastes de l'irradiation UV de la lumiere solaire, la peau humaine dispose de differents mecanismes de protection adaptatifs: resistance au choc thermique, arret du cycle cellulaire et reparation de l'ADN, pigmentation melanique et epaississement de l'epiderme. Quand les alterations depassent les capacites de reparation, les cellules entrent en apoptose pour empecher la replication d'une cellule avec de l'ADN endommage. Dans cet article, on passe en revue les connaissances actuelles sur les differents mecanismes d'adaptation de la peau aux alterations provoquees par les UVB, la fraction la plus energetique des UV solaires qui atteint la peau. Puisque la proteine P53, gardienne du genome, joue un role cle dans la reponse de protection aux alterations genotoxiques, son role dans la reponse d'adaptation de la peau aux UV sera discute en detail.
ISSN:0142-5463
1467-2494
DOI:10.1111/j.1467-2494.2006.00299.x