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Main Authors: Thierry Douki, Daniel Bacqueville, Carine Jacques, Camille Geniès, Nicolas Roullet, Sandrine Bessou‐Touya, Hélène Duplan
Format: Artículo Open Access
Published: Wiley 2024
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Online Access:https://onlinelibrary.wiley.com/doi/10.1111/php.13921
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author Thierry Douki
Daniel Bacqueville
Carine Jacques
Camille Geniès
Nicolas Roullet
Sandrine Bessou‐Touya
Hélène Duplan
author_facet Thierry Douki
Daniel Bacqueville
Carine Jacques
Camille Geniès
Nicolas Roullet
Sandrine Bessou‐Touya
Hélène Duplan
Thierry Douki
Daniel Bacqueville
Carine Jacques
Camille Geniès
Nicolas Roullet
Sandrine Bessou‐Touya
Hélène Duplan
collection Wiley Open Access
contents Blue light impairs the repair of UVB‐induced pyrimidine dimers in a human skin model Thierry Douki Daniel Bacqueville Carine Jacques Camille Geniès Nicolas Roullet Sandrine Bessou‐Touya Hélène Duplan Photochemistry and Photobiology AbstractIn recent years, interest is growing in the biological cutaneous effects of high‐energy visible light (400–450 nm). In the present study, we explored the impact of blue light (BL) on the repair of pyrimidine dimers, the major class of premutagenic DNA damage induced by exposure to sunlight. We unambiguously demonstrate that the exposure of in vitro reconstructed human epidermis to environmentally relevant doses of BL strongly decreases the rate of repair of cyclobutane pyrimidine dimers and pyrimidine (6‐4) pyrimidone photoproducts induced by a subsequent UVB irradiation. Using the highly sensitive and specific liquid chromatography‐tandem mass spectrometry assay, we did not observe induction of pyrimidine dimers by BL alone. Finally, we showed that application, during the BL exposure step, of a formula containing a new filter, named TriAsorB and affording BL photoprotection, prevented the decrease in DNA repair efficiency. These results emphasize the potential deleterious effects of BL on DNA repair and the interest in providing adequate skin protection against this wavelength range of sunlight. 10.1111/php.13921 http://creativecommons.org/licenses/by-nc/4.0/
doi_str_mv 10.1111/php.13921
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institution Wiley Open Access
license_str_mv http://creativecommons.org/licenses/by-nc/4.0/
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publisher Wiley
record_format wiley_oa
spellingShingle Blue light impairs the repair of UVB‐induced pyrimidine dimers in a human skin model
Thierry Douki
Daniel Bacqueville
Carine Jacques
Camille Geniès
Nicolas Roullet
Sandrine Bessou‐Touya
Hélène Duplan
Photochemistry and Photobiology
Blue light impairs the repair of UVB‐induced pyrimidine dimers in a human skin model Thierry Douki Daniel Bacqueville Carine Jacques Camille Geniès Nicolas Roullet Sandrine Bessou‐Touya Hélène Duplan Photochemistry and Photobiology AbstractIn recent years, interest is growing in the biological cutaneous effects of high‐energy visible light (400–450 nm). In the present study, we explored the impact of blue light (BL) on the repair of pyrimidine dimers, the major class of premutagenic DNA damage induced by exposure to sunlight. We unambiguously demonstrate that the exposure of in vitro reconstructed human epidermis to environmentally relevant doses of BL strongly decreases the rate of repair of cyclobutane pyrimidine dimers and pyrimidine (6‐4) pyrimidone photoproducts induced by a subsequent UVB irradiation. Using the highly sensitive and specific liquid chromatography‐tandem mass spectrometry assay, we did not observe induction of pyrimidine dimers by BL alone. Finally, we showed that application, during the BL exposure step, of a formula containing a new filter, named TriAsorB and affording BL photoprotection, prevented the decrease in DNA repair efficiency. These results emphasize the potential deleterious effects of BL on DNA repair and the interest in providing adequate skin protection against this wavelength range of sunlight. 10.1111/php.13921 http://creativecommons.org/licenses/by-nc/4.0/
title Blue light impairs the repair of UVB‐induced pyrimidine dimers in a human skin model
topic Photochemistry and Photobiology
url https://onlinelibrary.wiley.com/doi/10.1111/php.13921