• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.2
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• pp.43-59
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• 2009

Purpose: This study was performed to determine the inhibitory effect of Persimmon Leaves extract (PL) on melanin synthesis in B16F10 melanoma cells B16F10. Methods: The inhibitory effects of PL on melanin synthesis were determined by in vitro assay. To elucidate inhibitory effects of PL on melanin synthesis, we determined the melanin release and melanin production in B16F10. And to investigate the action mechanism, we assessed the gene expression of tyrosinase, TRP-1, TRP-2, PKA, PKC${\beta}$, ERK-1, ERK-2, AKT-1, MITF in B16F10. Results: 1. PL inhibited melanin release, melanin production in B16F10. 2. PL inhibited tyrosinase activity in vitro and in B16F10. 3. PL suppressed the expression of tyrosinase, TRP-1, TRP-2 in B16F10. 4. PL suppressed the expression of PKA, PKC${\beta}$ in B16F10. 5. PL increased the expression of ERK-1, ERK-2, AKT-1 in B16F10. 6. PL suppressed the expression of MITF in B16F10. Conclusion: From these results, it may be concluded that PL is possesed of the antimelanogenetic effects.

• The Journal of Korean Obstetrics and Gynecology
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• v.21 no.2
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• pp.59-75
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• 2008

Purpose: This study was performed to determine the inhibitory effect of Polygonum multiflorum(PM) on melanin synthesis in B16F10. Methods: The Inhibitory effects of Polygonum multiflorum(PM) on melanin synthesis were determined by in-vitro assay. To elucidate inhibitory effects of Polygonum multiflorum on melanin synthesis, we determined the melanin release and melanin production in B16F10. And to investigate the action mechanism, we assessed the gene expression of tyrosinase, TRP-1, TRP-2, MMP-2, PKA, PKC, ERK-1 ERK-2, AKT-1, MITF in B16F10. Results: 1. PM inhibited melanin-release, melanin production in B16F10. 2. PM inhibited tyrosinase activity in vitro and in B16F10. 3. PM suppressed the expression of tyrosinase, TRP-1 in B16F10. 4. PM suppressed the expression of PKA in B16F10. 5. PM suppressed the expression of ERK-1, ERK-2, AKT-1 in B16F10. 6. PM suppressed the expression of MITF in B16F10. Conclusion: From these results, it may be concluded that PM possesses the antimelanogenetic effects.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.20 no.3
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• pp.1-13
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• 2007

Objective : This study was performed to assess the whitening effect of Bombysis Corpus on melanin synthesis. Methods : The whitening effects of Bombysis Corpus were examined by in vitro melanin production assay. We assessed inhibitory effects of Bombysis Corpus on melanin-release from B16F10, on melanin production in B16F10, on mushroom tyrosinase activity in vitro, on tyrosinase activity in B16F10, effect of Bombysis Corpus on the expression tyrosinase, TRP-1, PKA, ERK-1 ERK-2, AKT-1, MITF in B16F10. Results : 1. Bombysis Corpus inhibited melanin-release, melanin production in B16F10. 2. Bombysis Corpus inhibited tyrosinase activity in vitro and in B16F10. 3. Bombysis Corpus suppressed the expression of tyrosinase, TRP-1 in B16F10. 4. Bombysis Corpus suppressed the expression of PKA in B16F10. 5. Bombysis Corpus suppressed the expression of ERK-1, ERK-2, AKT-1 in B16F10. 6. Bombysis Corpus suppressed the expression of MITF in B16F10. Conclusion : The study shows that Bombysis Corpus inhibited melanin production on the melanogenesis.

• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.4
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• pp.1-18
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• 2009

Purpose: This study was performed to elucidate the inhibitory effect of Mibaeksan (MB) on melanin synthesis in B16F10 mouse melanoma cell. Methods: To demonstrate the inhibitory effects of MB on melanin synthesis, we measured the amount of released and produced melanin in B16F10 melanoma cell. Also, we evaluated tyrosinase-activity in vitro as well as in B16F10 melanoma cell. And to investigate the action mechanism, we assessed the gene expression of tyrosinase, TRP-1, TRP-2, MMP-2, PKA, $PKC{\beta}$, ERK-1 ERK-2, AKT-1 and MITF in B16F10 melanoma cells. Results: 1. MB decreased the release and production of melanin in B16F10 melanoma cells. 2. MB decreased tyrosinase activity in vitro and in B16F10 melanoma cells. 3. MB decreased the expression of tyrosinase, TRP-1, TRP-2, PKA, $PKC{\beta}$ and MMP-2 in B16F10 melanoma cells. 4. MB increased the expression of ERK-1, ERK-2 and AKT-1 in B16F10 melanoma cells. 5. MB decreased the expression of MITF in B16F10 melanoma cells. Conclusion: From these results, it may be concluded that MB has the antimelanogenetic effects.

• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.4
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• pp.28-45
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• 2009

Purpose: This study was performed to elucidate the inhibitory effect of Yukmijihwangtanghapyijihwangagambang (YM) on melanin synthesis in B16F10 melanoma cells. Methods: To demonstrate the inhibitory effects of YM on melanin synthesis, we measured the amount of released and produced melanin in B16F10 melanoma call. Also, we evaluated tyrosinase-activity in vitro as well as in B16F10 melanoma call. And to investigate the action mechanism, we assessed the gene expression of tyrosinase, TRP-1, TRP-2, PKA, $PKC{\beta}$, ERK-1 ERK-2, AKT-1 and MITF in B16F10 melanoma call. Results: 1. YM decreased the release and production of melanin in B16F10 melanoma cells. 2. YM decreased tyrosinase activity in vitro and in B16F10 melanoma cells. 3. YM decreased the expression of tyrosinase, TRP-1, TRP-2 in B16F10 melanoma cells. 4. YM decreased the expression of PKA, $PKC{\beta}$ in B16F10 melanoma cells. 5. YM increased the expression of ERK-1, ERK-2 and AKT-1 in B16F10 melanoma cells. 6. YM decreased the expression of MITF in B16F10 melanoma cells. Conclusion: From these results, it may be concluded that YM has antimelanogenetic effects.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.20 no.3
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• pp.51-62
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• 2007

Objective : The aim of this study is to assess the effect of Schizandrae Fructus on melanin synthesis inhibition and whitening effect. Methods : We assessed inhibitory effects of Schizandrae Fructus on melanin-release from B16F10, on melanin production in B16F10, on mushroom tyrosinase activity in vitro, on tyrosinase activity in B16F10 and effect of Schizandrae Fructus on the expression tyrosinase, TRP-1, TRP-2, PKA, ERK-1 ERK-2, AKT-1, MITF in B16F10. Results and Conclusion : 1. Schizandrae Fructus inhibited melanin-release, melanin production in B16F10. 2. Schizandrae Fructus inhibited tyrosinase activity in vitro and in B16F10. 3. Schizandrae Fructus suppressed the expression of tyrosinase, TRP-1, TRP-2, PKA, ERK-2 in B16F10.

• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.3
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• pp.66-82
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• 2009

Purpose: This study was performed to elucidate the inhibitory effect of Yukmijihwangtang-gagambang (YMG) on melanin synthesis in B16F10 mouse melanoma cell. Methods: To demonstrate the inhibitory effects of YMG on melanin synthesis, we measured the amount of released and produced melanin in B16F10 melanoma cell. Also, we evaluated tyrosinase-activity in vitro as well as in B16F10 melanoma cell. And to investigate the action mechanism we assessed the gene expressions of tyrosinase, TRP-1, TRP-2, MMP-2, PKA, PKC${\beta}$, ERK-1 ERK-2, AKT-1 and MITF in B16F10 melanoma cells. Results: 1. YMG decreased the release and production of melanin in B16F10 melanoma cells. 2. YMG decreased tyrosinase activity in vitro and in B16F10 melanoma cells. 3. YMG decreased the expression of tyrosinase, TRP-1, TRP-2, PKA, PKC${\beta}$ and MMP-2 in B16F10 melanoma cells. 4. YMG increased the expression of ERK-1, ERK-2, and AKT-1 in B16F10 melanoma cells. 5. YMG decreased the expression of MITF in B16F10 melanoma cells. Conclusion: From these results, we suggest that YMG inhibit melanin synthesis via tyrosinase inhibition and regulation of the gene expression in B16F10 melanoma cells.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.1
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• pp.63-75
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• 2009

The aim of this study was to elucidate the antimelanogenic effect of Dokhwalkisaeng-tang(Duohujisheng-tang) in B16F10 melanoma cells. Dokhwalkisaeng-tang(DKT) was used to develop the effective prescription of inhibition of melanin production. We determined inhibitory effects of DKT on melanin-release, melanin production, and tyrosinase activity in B16F10 melanoma cells. And to explicate the action-mechanism of DKT, melanin-related gene expressions were determined using RT-PCR and real time RT PCR technique in B16F10 melanoma cells. DKT inhibited melanin-release, melanin production in B16F10 melanoma cells considerably. DKT inhibited tyrosinase activity in vitro and in B16F10 melanoma cells. DKT inhibited the expression of tyrosinase, TRP-1, TRP-2 in B16F10 melanoma cells. DKT inhibited the expression of PKA, PKC, MMP-2 and MITF in B16F10 melanoma cells. On the other hand, DKT increased the expression of ERK-1, ERK-2, AKT-1 in B16F10 melanoma cells. From these results, we propose that DKT may have effect on the antimelanogenesis.

• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.1
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• pp.95-109
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• 2009

Purpose: This study was performed to determine the inhibitory effect of Sihosogansangagambang (SS) on melanin synthesis in B16F10 melanoma cells (B16F10). Methods: The inhibitory effects of Sihosogansangagambang on melanin synthesis were used by in vitro assay. To elucidate inhibitory effects of SS on melanin synthesis, we determined the melanin release in B16F10. And to investigate the mechanism of inhibitory effect of SS, we assessed the gene expression of tyrosinase, TRP-1, TRP-2 and ERK-1 in B16F10. Results: 1. SS decreased the release of melanin in B16F10 melanoma cells. 2. SS inhibited mushroom tyrosinase activity in vitro. 3. SS decreased the expression of tyrosinase, TRP-2 in B16F10 melanoma cells, but did not decreased the expression of TRP-1 in B16F10 melanoma cells. 4. SS decreased the expression of ERK-1 in B16F10 melanoma cells. Conclusion: From these results, it may be suggested that SS is possesed of the antimelanogenetic effects.

• Korean Journal of Pharmacognosy
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• v.52 no.1
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• pp.13-18
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• 2021

This study was performed to clarify the whitening effects of anthricin on the B16F10 cell line. In order to elucidate the whitening effects of anthricin on the B16F10 cell line, cell viability, messenger ribonucleic acid (mRNA) expressions, tyrosinase activity assay, and melanin production assay were measured. The effects of anthricin on tyrosinase-related protein 1(TYRP1)/TYRP2/tyrosinase (TYR)/microphthalmia-associated transcription factor (MITF) mRNA expressions and melanin content were determined. Quantitative real-time RT-PCR showed that anthricin decreased the mRNA expression level of TYRP1/TYRP2/TYR/MITF genes and melanin production contents than α-MSH-treated B16F10 cells. The tyrosinase activity assay revealed that anthricin decreased the melanin production on the B16F10 cells. These data show that anthricin increases the whitening effects on the B16F10 cells; thus, anthricin is a potent ingredient for skin whitening. Thus, further research on the mechanism of action of anthricin for the development of not only cosmetics, but also healthy food and medicine should be investigated.