Abstract
Among the eight amino acid hydroxamates tested, Glycine hydroxamate (GH) was the best inhibitor of mushroom tyrosinase (TYR). With l-tyrosine as substrate, the GH inhibition of the monophenolase activity of the mushroom TYR was noncompetitive. GH decreased not only TYR protein expression, but also melanin content, tyrosinase-related protein (TRP)-1, TRP-2, and microphthalmia-associated transcription factor (MITF) expression in B16F10 melanoma cells while in the presence of α-melanocyte-stimulating hormone (α-MSH). GH also significantly decreased the isobutylmethylxanthine (IBMX)-induced increase in melanin content, which was not prevented by the ERK inhibitor PD98059. These results suggest GH has the potential for use in cosmetic hypopigmentation.
Original language | English |
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Pages (from-to) | 617-625 |
Number of pages | 9 |
Journal | Amino Acids |
Volume | 47 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2015 |
Keywords
- Glycine hydroxamate
- Hypopigmentation
- Isobutylmethylxanthine
- Melanin, microphthalmia-associated transcription factor
- Protein kinase A
- Tyrosinase
ASJC Scopus subject areas
- Biochemistry
- Clinical Biochemistry
- Organic Chemistry