کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5828355 1558963 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecular and cellular pharmacologyMenadione (Vitamin K3) decreases melanin synthesis through ERK activation in Mel-Ab cells
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Molecular and cellular pharmacologyMenadione (Vitamin K3) decreases melanin synthesis through ERK activation in Mel-Ab cells
چکیده انگلیسی

Menadione is a synthetic vitamin K3 derivative. Here, we examined the effects of menadione on melanogenesis and its related signaling pathways. Our results showed that melanin content was significantly reduced after menadione treatment in a dose-dependent manner. However, menadione treatment did not reduce tyrosinase activity directly. Wnt signaling is known to play a major role in the control of melanin synthesis. Thus, we tested the effects of menadione treatment on GSK3β and β-catenin signaling, but found that menadione did not influence either of these signaling pathways. We also investigated changes in the phosphorylation of ERK, which is related to melanin regulation. These results indicated that menadione treatment led to the phosphorylation of ERK. Additionally, menadione treatment reduced both MITF and tyrosinase protein levels. Treatment with PD98059, a specific ERK pathway inhibitor, restored menadione-induced melanin reduction and also prevented MITF and tyrosinase downregulation by menadione. These results suggest that the hypopigmentary action of menadione is due to MITF and tyrosinase downregulation by ERK activation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmacology - Volume 718, Issues 1–3, 15 October 2013, Pages 299-304
نویسندگان
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