- Increase of pro-opiomelanocortin mRNA prior to tyrosinase, tyrosinase-related protein 1, dopachrome tautomerase, Pmel-17/gp100, and P-protein mRNA in human skin after ultraviolet B irradiation. Suzuki, I., Kato, T., Motokawa, T., Tomita, Y., Nakamura, E., Katagiri, T. J. Invest. Dermatol. (2002)