• Title/Summary/Keyword: tyrosinase-related protein (TRP)-1

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Whitening Activity of Abeliophyllum distichum Nakai Leaves According to the Ratio of Prethanol A in the Extracts

  • Jang, Tae-Won;Choi, Ji-Soo;Kim, Hoi-Ki;Lee, Eun-Ja;Han, Man-Wook;Lee, Ki-Beom;Kim, Do-Wan;Park, Jae-Ho
    • Korean Journal of Plant Resources
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    • v.31 no.6
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    • pp.667-674
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    • 2018
  • In this study, we evaluated the whitening activity of prethanol A and water extracts from Abeliophyllum distichum Nakai. The extracts were prepared using 0, 50, 70, and 100% prethanol A at $121^{\circ}C$, 1.2 atm for 15 minutes. To confirm effective extraction, the acteoside content of each extract was analyzed with the HPLC-PDA method. The antioxidant activity was evaluated using DPPH and ABTS scavenging activity assays, and the whitening activity was evaluated based on inhibitory activities on the protein and mRNA expression of tyrosinase, tyrosinase-related protein 1 (TRP-1), tyrosinase-related protein 2 (TRP-2), and microphthalmia-associated transcription factor (MITF) in B16 F10 cells. Each extract showed strong antioxidant and whitening activity. $IC_{50}$ values of antioxidant activity from each extract were in order of 100%, 70%, 50%, and 0%. In addition, whitening activity inhibited the protein and mRNA expression of melanin synthesis factor, following the same pattern as antioxidant activity. In conclusion, water and prethanol A extracts of A. distichum showed effective antioxidant and whitening activity and are thus considered to be valuable materials for whitening cosmetics. The results of this study will also provide basic data for the safe and efficient production of A. distichum as a cosmetic material.

Whitening Activity of Sambucus Sieboldiana Var. Pendula (Nakai) Extract (말오줌나무 추출물의 미백활성 검증)

  • Yoo, Dan-Hee;Kim, Jin-Tae;Oh, Min-Jeong;Yeom, Hyeon-Ji;Lee, Jin-Young
    • Journal of Life Science
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    • v.29 no.3
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    • pp.279-286
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    • 2019
  • This study evaluated the anti-oxidant and whitening effects of a 70% ethanol extract of the Sambucus sieboldiana var. pendula (Nakai) (SS). At $1,000{\mu}g/ml$ concentration, the electron donating ability of this SS extract was found to be 86.21% and the ABTS+ radical scavenging ability was 97.9%. In terms of whitening activity, the tyrosinase inhibitory effect of the extract was 37%, also at $1,000{\mu}g/ml$ concentration. To explore the extractefftoxicity to B16F10 melanoma cells, a 3-[4,5-dimethyl-thiazol-2-yl]-2,5-diphenyl-tetrazoliumbromide assay was performed. Results showed 90% or more cells remained viable at $100{\mu}g/ml$ concentration. A Western blot of the SS extract was used to measure microphthalmia-associated transcription factor (MITF), tyrosinase-related protein-1 (TRP-1), tyrosinase relate protein-2 (TRP-2), and the tyrosinase protein expression inhibitory effect at 25, 50, $100{\mu}g/ml$ concentrations; ${\beta}-actin$ was used as a positive control. Consequently, the MITF, TRP-1, TRP-2, and the tyrosinase protein expression inhibitory effect were seen to decrease by 34.5%, 45.6%, 58.4%, and 79.6%, respectively, at $100{\mu}g/ml$ concentration. These were also then measured by reverse transcription-polymerase chain reaction at 25, 50, $100{\mu}g/ml$ concentrations with GAPDH as a positive control. As a result, the SS extract was seen to decrease MITF, TRP-1, TRP-2, and the tyrosinase protein expression inhibitory effect by 85.4%, 67.5%, 85.2%, 67.1%, respectively at the $100{\mu}g/ml$ concentration. We therefore confirmed the possibility of Sambucus sieboldiana var. pendula (Nakai) extract as a whitening material.

Anti-Melanogenic Effect of Dendropanax Morbiferus and Its Active Components via Protein Kinas e A/Cyclic Adenos ine Monophosphate-Responsive Binding Protein-and p38 Mitogen-Activated Protein Kinase-Mediated Microphthalmia-Associated Transcription Factor Downregulation

  • Bohyun Yun;Ji Soo Kim;Jung Up Park
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.104-104
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    • 2022
  • Dendropanax morbiferus H. Lev has been reported to have some pharmacologic activities and also interested in functional cosmetics. We found that the water extract of D. morbiferus leaves significantly inhibited tyrosinase activity and melanin formation in α-melanocyte stimulating hormone (MSH)-induced B16-F10 cells. D. morbiferus reduced melanogenesis-related protein levels, such as microphthalmia? associated transcription factor (MITF), TRP-1, and TRP-2, without any cytotoxicity. Two active ingredients of D. morbiferus, (10E)-9,16-dihydroxyoctadeca-10,17-dien-12,14-diynoate (DMW-1) and (10E)-(?)-10,17-octadecadiene-12,14-diyne-1,9,16-triol (DMW-2) were identified by testing the anti-melanogenic effects and then by liquid chromatography-tandem mass spectrometry (LC/MS/MS) analysis. DMW-1 and DMW-2 significantly inhibited melanogenesis by the suppression of protein kinase A (PKA)/cyclic AMP (cAMP)-responsive binding protein (CREB) and p38 MAPK phosphorylation. DMW-1 showed a better inhibitory effect than DMW-2 in α-MSH-induced B16-F10 cells. D. morbiferus and its active component DMW-1 inhibited melanogenesis through the downregulation of cAMP, p-PKA/CREB, p-p38, MITF, TRP-1, TRP-2, and tyrosinase. These results indicate that D. morbiferus and DMW-1 may be useful ingredients for cosmetics and therapeutic agents for skin hyperpigmentation disorders.

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Inhibitory Effect of Ginkgo biloba Extracts on Melanin Biosynthesis (은행 열매 추출물의 멜라닌 생성 저해효과)

  • Kim, Yoon Suk;Lee, Young Hwa;Lee, Jin Young;Yi, Yong sub
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.41 no.4
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    • pp.383-389
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    • 2015
  • In this study, we investigated the inhibitory effect on melanin synthesis of Ginkgo biloba seed oil. The results showed 9.96% inhibitory effect scavenging activity on DPPH and showed a value of 1.33 mM of $FeSO_4$ at a concentration of 0.06% in DMSO by using FRAP assay. G. biloba seed oil inhibited tyrosinase activity up tp 37.72% and suppressed the biosynthesis melanin up to 48.02% at 0.06% in B16/F10 mouse melanoma cell. In G. biloba seed oil treated group tyrosinase, TRP-1, TRP-2 and MITF gen expression levels significantly decreased compared to the contral group at a concentration of 0.04% and 0.06%. In conclusion, these results indicated that G. biloba seed oil extract have a good antimelanogenetic effects.

Stimulating effect of modified Goa-Gi-Um herbal remedy on melanogenesis in B16F10 melanoma cells (B16F10 멜라노마세포에서 과기음가미방의 멜라닌 생성 촉진 효과)

  • Moon, Na-Rang;Kim, Se Yoon;Lee, Jin Hyuk;Lee, Jung Bok;Park, Sunmin
    • The Korea Journal of Herbology
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    • v.28 no.3
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    • pp.69-74
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    • 2013
  • Objectives : Since hypopigmentation is known to increase the risk of skin cancer, melanogenesis in the skin needs to be regulated. Here, we evaluated the melanogenesis stimulatory effects of a modified Goagium herbal remedy (HR) and HR+ox bile (Bos taurus domesticus) extract (OBE) to address hypopigmentation disorders. Methods : B16F10 melanoma cells were treated with different dosages of HR and HR+OBE for 24 to 48 h after 1 h of 10 nM ${\alpha}$-melanocyte stimulating hormone (${\alpha}$-MSH). After the treatment, cell viability, tyrosinase activity, melanin synthesis and the expression of genes related to melanin synthesis were measured and the regulation of the ${\alpha}$-MSH signalling through cAMP responding element binding protein (CREB) was determined. Results : HR and HR+OBE with the ranges of $15{\sim}100{\mu}g/mL$ did not affect cell viability in melanoma cells. The 1 h treatment of HR+OBE (50 and $100{\mu}g/mL$) potentiated the phosphorylation of CREB by enhancing ${\alpha}$-MSH signaling and its 24 h treatment increased CREB expression. Consistent with CREB potentiation, their treatment for 24 h, the expression of microphthalmia-associated transcription factor (MIFT), tyrosinase, tyrosinase related protein (TRP)-1 and TRP-2 were increased in realtime PCR. Ultimately, the 48 h treatment of HR+OBE (50 and $100{\mu}g/mL$) increased tyrosniase activity and melanin contents in the melanoma cells in comparison to the control. Conclusions : HR+OBE (50 and $100{\mu}g/mL$) increases melanin synthesis in B16F10 melanoma cells via the stimulation of tyrosinase activity and expression of MIFT, tyrosinase, TRP-1 and TRP-2. HR+OBE can be used as the a possible treatment for hypopigmentation of the skin.

Antimelanogenic of Artemisia fukudo Makino Extract in Melanoma Cells (큰비쑥 추출물의 멜라닌 생성 억제 효과)

  • Kim, Min-Jin;Kim, Seoyeon;Hyun, Kwang Hee;Kim, Duk Soo;Kim, Seung-Young;Hyun, Chang-Gu
    • KSBB Journal
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    • v.32 no.3
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    • pp.233-237
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    • 2017
  • Melanin is one of the most important factors affecting skin color. Melanogenesis is the bioprocess of melanin production by melanocytes in the skin and hair follicles and is mediated by several enzymes, such as tyrosinase, tyrosinase related protein (TRP)-1, and TRP-2, MITF. In this study, we investigated the effect of Artemisia fukudo Makino extracts on tyrosinase activity and melanin production as natural products of whitening functional cosmetics. Melanin content in murine B16F10 melanoma cells were decreased by Artemisia fukudo Makino extracts in a dose-dependently. In addition, the inhibition of tyrosinase activity of Artemisia fukudo Makino extracts showed to decrease tyrosinase activity as the concentration of ${\alpha}-MSH$ was increased. Furthermore, western blot analysis revealed that Artemisia fukudo Makino extracts significantly downregulated the expression of tyrosinase, TRP-1 which treat of ${\alpha}-MSH-induced$ melanogenesis in murine B16F10 melanoma cells. As a result, Artemisia fukudo Makino extract showed functionalities as an effective whitening agent to inhibit melanin formation.

Lincomycin induces melanogenesis through the activation of MITF via p38 MAPK, AKT, and PKA signaling pathways

  • Lee, Min Suk;Chung, You Chul;Moon, Seung-Hyun;Hyun, Chang-Gu
    • Journal of Applied Biological Chemistry
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    • v.64 no.4
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    • pp.323-331
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    • 2021
  • Lincomycin is a lincosamide antibiotic isolated from the actinomycete Streptomyces lincolnensis. Moreover, it has been found to be effective against infections caused by Staphylococcus, Streptococcus, and Bacteroides fragillis. To identify the melanin-inducing properties of lincomycin, we used B16F10 melanoma cells in this study. The melanin content and intracellular tyrosinase activity in the cells were increased by lincomycin, without any cytotoxicity. Western blot analysis indicated that the protein expressions of tyrosinase, tyrosinase related protein 1 (TRP1) and TRP2 increased after lincomycin treatment. In addition, lincomycin enhanced the expression of master transcription regulator of melanogenesis, a microphthalmia-associated transcription factor (MITF). Lincomycin also increased the phosphorylation of p38 mitogen-activated protein kinase (MAPK) and decreased the AKT phosphorylation. Moreover, the activation of tyrosinase activity by lincomycin was inhibited by the treatment with SB203580, which is p38 inhibitor. Furthermore, we also found that lincomycin-induced tyrosinase expression was reduced by H-89, a specific protein kinase A (PKA) inhibitor. These results indicate that lincomycin stimulate melanogenesis via MITF activation via p38 MAPK, AKT, and PKA signal pathways. Thus, lincomycin can potentially be used for treatment of hypopigmentation disorders.

Evaluation of Whitening Activity and Wrinkle Inhibitory Effect of Ethanol Extracts of Nelumbinis Rhizomatis Nodus (우절 에탄올추출물의 미백활성능과 주름저해 효능평가)

  • Jang, Young-Ah;Yeom, Bo-Seul;Kim, Se-Gie;Lee, Jin-Tae
    • Journal of Life Science
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    • v.29 no.11
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    • pp.1192-1199
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    • 2019
  • The intention of this study was to confirm the possible use of an ethanol extracts of Nelumbinis Rhizomatis Nodus (NRN) as a cosmetic material. To this end, we extracted NRN with 70% ethanol and performed biological activity evaluation of whitening efficacy and wrinkle reduction. We performed cellular tyrosinase inhibition and melanin contents assay to check the whitening activity of NRN and carried out a toxicity evaluation of NRN via an MTT assay and the amounts of associated proteins that affect melanin production in a melanoma cell line (B16F10). And collagenase inhibitory assay was performed for the evaluation of anti-wrinkle of samples. In addition, a toxicity evaluation using an MTT assay and matrix metalloprotease (MMP-1) and procollagen synthesis inhibition by NRN were evaluated in a fibroblast cell line (CCD-986sk). Western blot results for the whitening activity evaluation revealed that the levels of two proteins related to melanin production, tyrosinase-related protein-1 (TRP-1) and tyrosinase-related protein-2 (TRP-2), were decreased in a dose-dependent manner. Moreover, collagenase inhibition activity at a concentration of $500{\mu}g/ml$ NRN by measuring epigallocatechin-3-gallate (EGCG) was increased by more than 80% compared to the control group. Meanwhile, procollagen synthesis was reduced by 68.8% in the UVB-induced CCD- 986sk cells group whereas collagen synthesis recovered by 80.2% with $25{\mu}g/ml$ NRN. The MMP-1 expression rate showed 20.2% reduction at $25{\mu}g/ml$. The results of the experiments verified the whitening and wrinkle suppression effects of NRN and confirmed that it could be used as a safe natural cosmetic material in the future.

Diarylpropionitrile inhibits melanogenesis via protein kinase A/cAMP-response element-binding protein/microphthalmiaassociated transcription factor signaling pathway in α-MSH-stimulated B16F10 melanoma cells

  • Lee, Hyun Jeong;An, Sungkwan;Bae, Seunghee;Lee, Jae Ho
    • The Korean Journal of Physiology and Pharmacology
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    • v.26 no.2
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    • pp.113-123
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    • 2022
  • Diarylpropionitrile (DPN), a selective agonist for estrogen receptor β (ERβ), has been reported to regulate various hormonal responses through activation of ERβ in tissues including the mammary gland and brain. However, the effect of DPN on melanogenesis independent of ERβ has not been studied. The aim of this study is to examine the possibility of anti-melanogenic effect of DPN and its underlying mechanism. Melanin contents and cellular tyrosinase activity assay indicated that DPN inhibited melanin biosynthesis in alpha-melanocyte stimulating hormone-stimulated B16F10 melanoma cell line. However, DPN had no direct influence on in vitro tyrosinase catalytic activity. On the other hand, 17β-estradiol had no effect on inhibition of melanogenesis, suggesting that the DPN-mediated suppression of melanin production was not related with estrogen signaling pathway. Immunoblotting analysis showed that DPN down-regulated the expression of microphthalmia-associated transcription factor (MITF), a central transcription factor of melanogenesis and its down-stream genes including tyrosinase, tyrosinase-related protein (TRP)-1, and TRP-2. Also, DPN attenuated the phosphorylation of protein kinase A (PKA) and cAMP-response element-binding protein (CREB). Additionally, DPN suppressed the melanin synthesis in UVB-irradiated HaCaT conditioned media culture system suggesting that DPN has potential as an anti-melanogenic activity in physiological conditions. Collectively, our data show that DPN inhibits melanogenesis via downregulation of PKA/CREB/MITF signaling pathway.

Inhibitory Effect of Fritillaria Verticillata Willd. var. Thunbergii Bak Ethanol Extract on Melanin Biosynthesis (절패모(浙貝母) 에탄올 추출물의 멜라닌 생성 억제 효과)

  • Ha, Tae-Kwang;Lee, Boo-Kyun;Yoon, Jeong-Rock;Mun, Yeun-Ja;Woo, Won-Hong;Park, Seong-Ha;Lee, Jang-Cheon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.3
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    • pp.510-515
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    • 2011
  • This study was conducted to evaluate the depigmenting properties of ethanol extract from a Fritillaria verticillata Willd. (EFV) in B16F10 cells. Fritillaria verticillata Willd., a perennial herbaceous plant, has been used as a stimulator of mammary gland, expectorant, blood pressure depressant, antitussive agents in Korean herbal medicine. In the present study, we observed that melanin synthesis of B16F10 cells were significantly decreased by EFV without cytotoxicity. However, EFV could not suppress tyrosinase activity in B16F10 cells and mushroom tyrosinase activity. Furthermore, EFV did not effect the protein expression of tyrosinase, tyrosinase-related protein -1 (TRP-1), and TRP-2. These results suggest that EFV inhibited melanin synthesis and the hypopigmentary effect of EVF was not due to regulation of tyrosinase protein.