alexa Is Mc1r an important regulator of non-pigmentary responses to UV radiation?
Oncology

Oncology

Journal of Carcinogenesis & Mutagenesis

Author(s): Zmijewski MA, Slominski AT

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Abstract MC1R is recognized for its role in the regulation of melanin pigmentation. In addition, many investigators believe that it also plays a crucial role in immunomodulation (immunosuppression) and in melanogenesis-independent protective responses against ultraviolet radiation (UVR). Surprisingly, Wolnicka-Glubisz et al. have shown that loss of function in the MC1R has no effect on inflammatory responses and immunosuppression induced by UVR in C57BL/6 mice as well as on the degree of UVA-induced DNA damage in the epidermis and dermis. These findings, by challenging the existing dogmas on the precise role of MC1R in non-pigmentary responses to the UVR, mandate further research to either validate the presented data or to define to which degree these phenomena are restricted to the C57BL/6 mouse model or are applicable to other species including humans. The alternative target for immunomodulation is represented by MC3R. However, cutaneous expression of MC3R remains to be demonstrated. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
This article was published in Exp Dermatol and referenced in Journal of Carcinogenesis & Mutagenesis

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