Abstract | BACKGROUND: METHODS: The structure of MHY384 was established using (1)H and (13)C NMR spectroscopy and mass spectral analyses. To investigate dual mechanisms of action of MHY384 for the inhibition of melanin synthesis, we confirmed the inhibitory effect of tyrosinase catalytic activity of MHY384. Then, we confirmed the inhibitory effect of MHY384 on transcription of tyrosinase mRNA through alpha-MSH-induced cAMP-PKA-MITF signaling. In addition, we supported the inhibitory mechanism of MHY384 against tyrosinase using a kinetic study and docking programs. RESULTS: CONCLUSIONS: This study strongly indicates that the depigmenting effect of MHY384 results from the down-regulation of MITF and tyrosinase through direct tyrosinase inhibition. GENERAL SIGNIFICANCE:
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Authors | Yu Kyeong Han, Yun Jung Park, Young Mi Ha, Daeui Park, Ji Yeon Lee, Naree Lee, Jeong Hyun Yoon, Hyung Ryong Moon, Hae Young Chung |
Journal | Biochimica et biophysica acta
(Biochim Biophys Acta)
Vol. 1820
Issue 4
Pg. 542-9
(Apr 2012)
ISSN: 0006-3002 [Print] Netherlands |
PMID | 22251576
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2012 Elsevier B.V. All rights reserved. |
Chemical References |
- (2RS,4R)-2-(2,4-dihydroxyphenyl)thiazolidine-4-carboxylic acid
- Melanins
- Microphthalmia-Associated Transcription Factor
- Thiazolidines
- alpha-MSH
- Cyclic AMP
- Monophenol Monooxygenase
- Cyclic AMP-Dependent Protein Kinases
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Topics |
- Animals
- Catalytic Domain
- Cell Line, Tumor
- Cyclic AMP
(metabolism)
- Cyclic AMP-Dependent Protein Kinases
(metabolism)
- Melanins
(genetics, metabolism)
- Melanoma
(metabolism)
- Mice
- Microphthalmia-Associated Transcription Factor
(genetics, metabolism)
- Monophenol Monooxygenase
(antagonists & inhibitors, chemistry, metabolism)
- Protein Structure, Tertiary
- Signal Transduction
(drug effects)
- Thiazolidines
(chemical synthesis, chemistry, metabolism, pharmacology)
- alpha-MSH
(metabolism)
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