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Vitamin D and Death by Sunshine

1
Discipline of Physiology, Bosch Institute, School of Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
2
Discipline of Anatomy and Histology, Bosch Institute, School of Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2013, 14(1), 1964-1977; https://doi.org/10.3390/ijms14011964
Received: 6 December 2012 / Revised: 4 January 2013 / Accepted: 10 January 2013 / Published: 18 January 2013
(This article belongs to the Special Issue UV-Induced Cell Death 2012)
Exposure to sunlight is the major cause of skin cancer. Ultraviolet radiation (UV) from the sun causes damage to DNA by direct absorption and can cause skin cell death. UV also causes production of reactive oxygen species that may interact with DNA to indirectly cause oxidative DNA damage. UV increases accumulation of p53 in skin cells, which upregulates repair genes but promotes death of irreparably damaged cells. A benefit of sunlight is vitamin D, which is formed following exposure of 7-dehydrocholesterol in skin cells to UV. The relatively inert vitamin D is metabolized to various biologically active compounds, including 1,25-dihydroxyvitamin D3. Therapeutic use of vitamin D compounds has proven beneficial in several cancer types, but more recently these compounds have been shown to prevent UV-induced cell death and DNA damage in human skin cells. Here, we discuss the effects of vitamin D compounds in skin cells that have been exposed to UV. Specifically, we examine the various signaling pathways involved in the vitamin D-induced protection of skin cells from UV. View Full-Text
Keywords: vitamin D; 1,25-dihydroxyvitamin D3; ultraviolet radiation; sunburn cells; cyclobutane pyrimidine dimers; p53; nitric oxide; MAPK; AKT vitamin D; 1,25-dihydroxyvitamin D3; ultraviolet radiation; sunburn cells; cyclobutane pyrimidine dimers; p53; nitric oxide; MAPK; AKT
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MDPI and ACS Style

Dixon, K.M.; Tongkao-On, W.; Sequeira, V.B.; Carter, S.E.; Song, E.J.; Rybchyn, M.S.; Gordon-Thomson, C.; Mason, R.S. Vitamin D and Death by Sunshine. Int. J. Mol. Sci. 2013, 14, 1964-1977. https://doi.org/10.3390/ijms14011964

AMA Style

Dixon KM, Tongkao-On W, Sequeira VB, Carter SE, Song EJ, Rybchyn MS, Gordon-Thomson C, Mason RS. Vitamin D and Death by Sunshine. International Journal of Molecular Sciences. 2013; 14(1):1964-1977. https://doi.org/10.3390/ijms14011964

Chicago/Turabian Style

Dixon, Katie M., Wannit Tongkao-On, Vanessa B. Sequeira, Sally E. Carter, Eric J. Song, Mark S. Rybchyn, Clare Gordon-Thomson, and Rebecca S. Mason 2013. "Vitamin D and Death by Sunshine" International Journal of Molecular Sciences 14, no. 1: 1964-1977. https://doi.org/10.3390/ijms14011964

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