Hypopigmenting activity of bisabolangelone isolated from Angelica koreana Maxim. in α-melanocyte stimulating hormone-activated B16 or melan-a cells.
Planta Med
; 77(3): 248-51, 2011 Feb.
Article
em En
| MEDLINE
| ID: mdl-20814852
ABSTRACT
Tyrosinase is a key enzyme in the biosynthetic pathway of melanin pigments. Abnormal accumulation of melanin pigments causes melasma, freckles, and senile lentigo, which can be substantially ameliorated by treatment with arbutin or other tyrosinase inhibitors. In this study, roots of Angelica koreana Maxim. (Umbelliferae) inhibited melanin production in α-melanocyte stimulating hormone ( α-MSH)-activated B16 melanoma cells or melan-a melanocytes. To elucidate the hypopigmenting principle of A. koreana, the plant extracts were subjected to bioassay-guided phytochemical analysis, resulting in the identification of bisabolangelone. Bisabolangelone dose-dependently inhibited α-MSH-induced melanin production in B16 or melan-a cells with IC(15) values of 9-17 µM. The positive control arbutin also inhibited melanin production in B16 cells with an IC(50) value of 317 µM. Bisabolangelone suppressed α-MSH-inducible protein levels of tyrosinase in B16 cells but could not significantly inhibit the catalytic activity of cell-free tyrosinase. Taken together, this study indicates that bisabolangelone is the primary hypopigmenting principle of A. koreana and may have pharmacological potential in the melanin-associated hyperpigmentation disorders.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sesquiterpenos
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Pele
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Extratos Vegetais
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Monofenol Mono-Oxigenase
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Hiperpigmentação
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Angelica
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Melaninas
Limite:
Animals
Idioma:
En
Revista:
Planta Med
Ano de publicação:
2011
Tipo de documento:
Article