Abstract:
:3,6-Anhydro-l-galactose (l-AHG) is a bioactive sugar that is a major component of agarose. Recently, l-AHG was reported to have anti-melanogenic potential in human epidermal melanocytes (HEMs) and B16F10 melanoma cells; however, its underlying molecular mechanisms remain unknown. At noncytotoxic concentrations, l-AHG has been shown to inhibit alpha-melanocyte-stimulating hormone-induced melanin synthesis in various cell models, including HEMs, melan-a cells, and B16F10 cells. Although l-AHG did not inhibit tyrosinase activity in vitro, reverse transcription-polymerase chain reaction results demonstrated that the anti-melanogenic effect of l-AHG was mediated by transcriptional repression of melanogenesis-related genes, including tyrosinase, tyrosinase-related protein-1 (TRP-1), tyrosinase-related protein-2 (TRP-2), and microphthalmia-associated transcription factor (MITF) in HEMs. Western blot analysis showed that l-AHG effectively attenuated α-melanocyte-stimulating hormone-induced melanogenic proteins by inhibiting cyclic adenosine monophosphate/cyclic adenosine monophosphate-dependent protein kinase, mitogen-activated protein kinase, and Akt signaling pathways in HEMs. Topical application of l-AHG significantly ameliorated melanin production in a 3D pigmented human skin model. Collectively, these results suggest that l-AHG could be utilized as novel cosmetic compounds with skin-whitening efficacy.
journal_name
J Cell Biochemjournal_title
Journal of cellular biochemistryauthors
Kim JH,Kim DH,Cho KM,Kim KH,Kang NJdoi
10.1002/jcb.27112subject
Has Abstractpub_date
2018-09-01 00:00:00pages
7643-7656issue
9eissn
0730-2312issn
1097-4644journal_volume
119pub_type
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