scholarly journals Azadirachta indica (Neem) Water Leaf Extract Inhibits Melanin Production and Tyrosinase Activity in B16F10 Melanoma Cells

2021 ◽  
Vol 13 (4) ◽  
pp. 1030-1035
Author(s):  
Thanitsara Songtavisin ◽  
Benjamart Pratoomthai ◽  
Warachin Gangnonngiw ◽  
Jarinyaporn Naowaboot
Keyword(s):  
Azadirachta Indica ◽  
Leaf Extract ◽  
Melanoma Cells ◽  
Tyrosinase Activity ◽  
B16f10 Melanoma ◽  
Melanin Production ◽  
B16f10 Melanoma Cells

Inhibitory Effects of Dryopteris erythrosora Extract on Tyrosinase Activity and Melanin Production in B16F10 Melanoma Cells

KSBB Journal ◽  
2020 ◽  
Vol 35 (3) ◽  
pp. 228-234
Author(s):  
Yeon-Su Koo ◽  
Taejin Park ◽  
Ji Han Sim ◽  
Min-Seon Kim ◽  
Seung-Young Kim
Keyword(s):  
Melanoma Cells ◽  
Tyrosinase Activity ◽  
Inhibitory Effects ◽  
B16f10 Melanoma ◽  
Melanin Production ◽  
B16f10 Melanoma Cells

An In-Vitro Assay Estimating Changes in Melanin Content of Melanoma Cells due to Ultra-Dilute, Potentized Preparations

Homeopathy ◽  
2019 ◽  
Vol 108 (03) ◽  
pp. 183-187 ◽  
Author(s):  
Renuka Munshi ◽  
Samidha Joshi ◽  
Gitanjali Talele ◽  
Rajesh Shah
Keyword(s):  
In Vitro Study ◽  
Melanoma Cells ◽  
Tyrosinase Activity ◽  
Melanin Content ◽  
B16f10 Melanoma ◽  
Vitro Assay ◽  
Melanocyte Stimulating Hormone ◽  
B16f10 Melanoma Cells ◽  
Physiological Dose

Introduction The authors had previously conducted an in-vitro study to observe the effect of homeopathic medicines on melanogenesis, demonstrating anti-vitiligo potential by increasing the melanin content in murine B16F10 melanoma cells. A similar experiment was performed using further homeopathic preparations sourced from kojic acid (KA), hydrogen peroxide (H2O2; HP), 6-biopterin (BP), and [Nle4, D-Phe7]-α-melanocyte-stimulating hormone (NLE), some of which are known to induce vitiligo or melano-destruction at physiological dose. Materials and Methods The homeopathic preparations of BP, KA, NLE, and HP were used in 30c potency. Alcohol and potentized alcohol were used as vehicle controls. Prior to starting the main experiment, the viability of B16F10 melanoma cells after treatment with study preparations was assayed. Melanin content (at 48 h and 96 h) and tyrosinase activity in melanocytes were determined. Results At the end of 48 hours, NLE and HP in 30c potency had a significantly greater melanin content (p = 0.015 and p = 0.039, respectively) compared with controls; BP and KA in 30c potency had no significant effects. No significant changes were seen at the end of 96 hours. KA, NLE, HP, and vehicle controls showed an inhibition of tyrosinase activity. Conclusion The study demonstrated melanogenic effects of two homeopathic preparations. Further research to evaluate the therapeutic efficacy of these medicines is warranted.

scholarly journals Melanogenesis Effect of 7-acetoxy-4-methylcoumarin in B16F10 Melanoma Cells

Cosmetics ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 94
Author(s):  
Ji-Han Sim ◽  
Sung-Chan Jang ◽  
Tae-Jin Park ◽  
Won-Jae Chi ◽  
Seung-Young Kim
Keyword(s):  
Melanoma Cells ◽  
Hair Follicles ◽  
Dependent Manner ◽  
B16f10 Melanoma ◽  
Melanin Production ◽  
B16f10 Cells ◽  
B16f10 Melanoma Cells ◽  
Diphenyl Tetrazolium Bromide ◽  
Synthetic Derivatives ◽  
Dose Dependent

The increased interest in anti-whitening dyes has enhanced the research interest to identify efficient melanogenic activators. Melanogenesis is the process of melanin production by melanocytes in the hair follicles and skin, which is mediated by several enzymes, such as microphthalmia-associated transcription factor (MITF), tyrosinase (TYR), tyrosinase-related protein (TRP)-1, and TRP-2. This study investigated the melanogenesis-stimulating effect of 4-Methylumbelliferone (4MUMB) and its synthetic derivatives, 7-acetoxy-4-methylcoumarin (7A4MC) and 4-methylheriniarin (4MH) in B16F10 melanoma cells. The cytotoxicity of these compounds was investigated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, followed by the assessment of the melanin content and the intracellular TYR activity. Finally, the expression levels of the key enzymes involved in melanogenesis were investigated. 7A4MC increased melanin production in B16F10 cells relative to that by 4MUMB and 4MH treated cells in a dose-dependent manner without significant cytotoxicity. Concomitantly, 7A4MC significantly increased TYR activity and enhanced the expression of MITF, which significantly induced the expression of TRP-1, TRP-2, and TYR. Furthermore, 7A4MC stimulated melanogenesis via increased phosphorylation of c-Jun N-terminal kinases (JNK) and reduced phosphorylation of protein kinase B (AKT). These results confirmed the melanogenesis-inducing effects of 7A4MC and indicated its potential use as an anti-hair bleaching agent in cosmetics industries.

Effect of apigenin-7-glucoside, genkwanin and naringenin on tyrosinase activity and melanin synthesis in B16F10 melanoma cells

Life Sciences ◽  
2016 ◽  
Vol 144 ◽  
pp. 80-85 ◽  
Author(s):  
Nouha Nasr Bouzaiene ◽  
Fadwa Chaabane ◽  
Aicha Sassi ◽  
Leila Chekir-Ghedira ◽  
Kamel Ghedira
Keyword(s):  
Melanoma Cells ◽  
Tyrosinase Activity ◽  
Melanin Synthesis ◽  
B16f10 Melanoma ◽  
B16f10 Melanoma Cells

scholarly journals Antimelanogenic activities of piperlongumine derived from Piper longum on murine B16F10 melanoma cells in vitro and zebrafish embryos in vivo: its molecular mode of depigmenting action

2019 ◽  
Vol 62 (1) ◽  
Author(s):  
Hwang-Ju Jeon ◽  
Kyeongnam Kim ◽  
Yong-Deuk Kim ◽  
Sung-Eun Lee
Keyword(s):  
Melanoma Cells ◽  
Positive Control ◽  
Zebrafish Embryos ◽  
B16f10 Melanoma ◽  
Melanin Production ◽  
Melanocyte Stimulating Hormone ◽  
B16f10 Melanoma Cells ◽  
Pharmaceutical Industries

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.

scholarly journals Tobramycin Promotes Melanogenesis by Upregulating p38 MAPK Protein Phosphorylation in B16F10 Melanoma Cells

Antibiotics ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 140 ◽  
Author(s):  
Seung-Hyun Moon ◽  
You Chul Chung ◽  
Chang-Gu Hyun
Keyword(s):  
Protein Phosphorylation ◽  
Melanoma Cells ◽  
Clinical Use ◽  
Melanin Content ◽  
B16f10 Melanoma ◽  
Melanin Production ◽  
B16f10 Cells ◽  
Infection Treatment ◽  
B16f10 Melanoma Cells ◽  
Long Time

Tobramycin is an aminoglycoside-based natural antibiotic derived from Streptomyces tenebrarius, which is primarily used for Gram-negative bacterial infection treatment. Although tobramycin has been utilized in clinical practice for a long time, it has exhibited several side effects, leading to the introduction of more effective antibiotics. Therefore, we conducted our experiments focusing on new possibilities for the clinical use of tobramycin. How tobramycin affects skin melanin formation is unknown. This study used B16F10 melanoma cells to assess the effect of tobramycin on melanin production. After cytotoxicity was assessed by MTT assay, melanin content and tyrosinase activity analyses revealed that tobramycin induces melanin synthesis in B16F10 cells. Next, Western blot analyses were performed to elucidate the mechanism by which tobramycin increases melanin production; phosphorylated p38 protein expression was upregulated. Protein inhibitors have been used to elucidate the mechanism of tobramycin. Kanamycin A and B are structurally similar to tobramycin, and 2-DOS represents the central structure of these antibiotics. The effects of these substances on melanogenesis were evaluated. Kanamycin A reduced melanin production, whereas kanamycin B and 2-DOS had no effect. Overall, our data indicated that tobramycin increases melanin production by promoting p38 protein phosphorylation in B16F10 melanoma cells.

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