scholarly journals Anti-melanogenesis Constituents from the Seaweed Dictyota Coriacea

2013 ◽  
Vol 8 (4) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Ryeo Kyeong Ko ◽  
Min-Chul Kang ◽  
Sang Suk Kim ◽  
Tae Heon Oh ◽  
Gi-Ok Kim ◽  
...  

This study was conducted to identify the anti-melanogenesis constituents from a seaweed Dictyota coriacea (Holmes). Three known compounds, viz. 1,9-dihydroxycrenulide (1), epiloliolide (2) and D-mannitol (3), were isolated from the ethanol extract. The melanin synthesis inhibition activities were evaluated using B16F10 melanoma cells for the isolates. Compared with the positive control, arbutin, compounds 1 and 2 exhibited more potency, showing 27.8 and 22.6 % inhibition activities at a substrate concentration of 30 μg/mL. Our studies also indicate that these compounds are not cytotoxic. Hence, they might prove to be useful therapeutic agents for treating hyperpigmentation and effective components of whitening cosmetics.

Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 5959
Author(s):  
Siqi Zhou ◽  
Drira Riadh ◽  
Kazuichi Sakamoto

Melanin is a natural pigment produced by cells to prevent damage caused by ultraviolet radiation. Previously, resveratrol was shown to reduce melanin synthesis. As a natural polyphenol with various biological activities, resveratrol occurs in a variety of beverages and plant foods, such as grapes. Therefore, we investigated whether grape extracts containing resveratrol also had the ability to regulate melanin synthesis. In this study, we used mouse B16F10 melanoma cells as a model for melanin synthesis with the melanogenesis-inducing α-melanocyte-stimulating hormone (α-MSH) as a positive control. Our results confirmed previous reports that resveratrol reduces melanin synthesis by reducing the activity of the rate-limiting enzyme tyrosinase. In contrast, the grape extract could not reduce melanin synthesis, and in fact promoted melanogenesis in the presence of α-MSH. The expression of genes related to melanin synthesis, such as tyrosinase, tyrosinase-related protein-1, tyrosinase-related protein-2, and microphthalmia-associated transcription factor, also supports these phenomena, which means that even in the presence of resveratrol, grape extract will strengthen the function of α-MSH in promoting melanin synthesis. Therefore, these results also provide a point of view for research on cosmetics.


Life Sciences ◽  
2016 ◽  
Vol 144 ◽  
pp. 80-85 ◽  
Author(s):  
Nouha Nasr Bouzaiene ◽  
Fadwa Chaabane ◽  
Aicha Sassi ◽  
Leila Chekir-Ghedira ◽  
Kamel Ghedira

2015 ◽  
Vol 35 (4) ◽  
pp. 1011-1016 ◽  
Author(s):  
YOUNG CHAN SONG ◽  
YONGHEE LEE ◽  
HYEONG MI KIM ◽  
MOO YEOL HYUN ◽  
YUN YOUNG LIM ◽  
...  

2019 ◽  
Vol 62 (1) ◽  
Author(s):  
Hwang-Ju Jeon ◽  
Kyeongnam Kim ◽  
Yong-Deuk Kim ◽  
Sung-Eun Lee

Abstract In this study, the antimelanogenic activity of piperlongumine in murine B16F10 melanoma cells and zebrafish was investigated, and its mode of antimelanogenic action was elucidated using quantitative reverse transcription-polymerase chain reaction. A melanocyte-stimulating hormone (α-MSH, 200 nM) was used to induce melanin production in B16F10 melanoma cells, and kojic acid (200 μM) was used as a positive control. Piperlongumine had no inhibitory effects on cell growth at the treated concentrations (3 and 6 μM), and it significantly reduced total melanin production. Piperlongumine decreased the expression of Mitf, Tyr, Trp-1, and Trp-2 and tyrosinase activity was also dramatically reduced by the piper amide addition under α-MSH treatment. With these findings, zebrafish embryos were used to confirm antimelanogenic activity of piperlongumine, and it showed the potent antimelanogenic activity at the concentration of 1 μM. Altogether, piperlongumine has potent antimelanogenic activity, and these results support it as a candidate for natural depigmentation agent in a cosmetic and pharmaceutical industries.


Cytokine ◽  
2012 ◽  
Vol 59 (3) ◽  
pp. 533-534 ◽  
Author(s):  
I.-J. Yoon ◽  
M. Park ◽  
H.-R. Choi ◽  
H.-S. Kang

Cosmetics ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 60
Author(s):  
Kazuomi Sato ◽  
Yuji Yamaguchi ◽  
Setsuko Sakaki ◽  
Hiroyuki Takenaka

In this study, we examined the effect of a hot-water extract of coccolithophore Pleurochrysis carterae on melanogenesis in B16F1 and B16F10 melanoma cells. P. carterae extract inhibited the α-melanocyte-stimulating hormone (α-MSH)-enhanced melanin synthesis in B16F1 melanoma cells. P. carterae also inhibited unstimulated melanin synthesis in B16F10 melanoma cells. Western blotting showed that the P. carterae extract inhibited tyrosinase and microphthalmia-associated transcription factor (MITF) in a dose-dependent manner. The reporter assay also revealed a decline in the tyrosinase promoter activity in the presence of P. carterae extract. Furthermore, quantitative real-time RT-PCR analysis showed that P. carterae extract downregulated the mRNA levels of tyrosinase and MITF. Finally, our study demonstrated that the hot-water extract of P. carterae inhibits melanin synthesis via the down-regulation of MITF mRNA level. Our findings indicate that P. carterae extract could be a possible cosmetic ingredient.


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