L-765,314 Suppresses Melanin Synthesis by Regulating Tyrosinase Activity.
Molecules
; 24(4)2019 Feb 21.
Article
em En
| MEDLINE
| ID: mdl-30795539
ABSTRACT
Although melanin production is a key self-defense mechanism against ultraviolet radiation (UVR)-induced skin damage, uneven or excessive deposition of melanin causes hyperpigmentary disorders. Currently available whitening agents are unsatisfactory because of issues with efficacy and safety. To develop more effective depigmenting agents, we performed high-throughput melanin content assay screening using the B16F10 melanoma cell line and identified L-765,314 as a drug that suppressed melanin production in cultured melanocytes in a dose-dependent manner as well as cAMP- or 12-O-tetradecanoylphorbol 13-acetate (TPA)-stimulated melanin production without cytotoxicity. Interestingly, melanogenic gene expression was not altered by L-765,314. Rather, diminished melanin production by L-765,314 appeared to be caused by downregulation of tyrosinase activity via inhibition of protein kinase C (PKC). Because L-765,314 did not show any adverse effect in melanocytes, altogether our data suggest that L-765,314 could be a potential therapeutic candidate for skin hyperpigmentary disorders and further discovery of selective inhibitors targeting PKC might be a promising strategy for the development of depigmenting agents to treat hyperpigmentary disorders.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteína Quinase C
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Prazosina
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Monofenol Mono-Oxigenase
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Inibidores Enzimáticos
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Bibliotecas de Moléculas Pequenas
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Clareadores
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Melaninas
Limite:
Animals
Idioma:
En
Revista:
Molecules
Ano de publicação:
2019
Tipo de documento:
Article