The ion channel activator CyPPA inhibits melanogenesis via the GSK3ß/ß-catenin pathway.
Chem Biol Interact
; 300: 1-7, 2019 Feb 25.
Article
em En
| MEDLINE
| ID: mdl-30597128
ABSTRACT
Research into materials that inhibit melanogenesis in skin has gained interest. Screening for such compounds in B16F10â¯cells revealed that cyclohexyl-[2-(3,5-dimethyl-pyrazol-1-yl)-6-methyl-pyrimidin-4-yl]-amine (CyPPA), a positive modulator of small-conductance Ca2+-activated K+ channels, is a strong inhibitor of melanogenesis. We investigated the anti-melanogenic activity of CyPPA and the molecular mechanism by which CyPPA reduced melanin production in normal human melanocytes (NHM). CyPPA treatment resulted in a significant concentration-dependent reduction in melanin content without significant cytotoxicity; treatment likewise resulted in a significant time-dependent reduction in tyrosinase (TYR) activity. Treatment with CyPPA also decreased transcription of melanogenesis-related genes, including the gene encoding microphthalmia-associated transcription factor (MITF). In addition, visual evaluation of the MelanoDerm™ human skin model revealed significantly lower melanin content in the CyPPA-treated condition than in the untreated control. CyPPA was determined to modulate glycogen synthase kinase-3ß (GSK3ß) activity, thereby leading to a decrease in ß-catenin/MITF expression. Thus, CyPPA acts as a melanogenesis inhibitor by modulating the GSK3ß/ß-catenin/MITF pathway.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Pirazóis
/
Pirimidinas
/
Transdução de Sinais
/
Beta Catenina
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Glicogênio Sintase Quinase 3 beta
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article