TRP-1 expression correlates with eumelanogenesis in human pigment cells in culture
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Updated: Nov 8, 2026

Feeder-free Derivation of Melanocytes from Human Pluripotent Stem Cells
Published on: March 3, 2016
V del Marmol1, S Ito, I Jackson
1LOCE-Faculty of Medicine, Université Libre de Bruxelles, Belgium.
Abstract:
We have investigated the relationship in human cultured normal and malignant melanocytes between the accumulation of mRNAs encoding tyrosinase and tyrosinase-related protein-1 (TRP-1), the activity of tyrosinase and the presence of melanin. Tyrosinase mRNA correlates with tyrosinase activity and with the presence of pheomelanin, eumelanin or both melanin types. In contrast TRP-1 mRNA is only detectable in cells containing eumelanin, which suggests a role for TRP-1 in the eumelanin synthesis pathway.
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