Journal
CELL BIOCHEMISTRY AND FUNCTION
Volume 39, Issue 4, Pages 536-545Publisher
WILEY
DOI: 10.1002/cbf.3619
Keywords
melanin; MITF; spermidine; tyrosine hydroxylase; alpha-MSH
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Spermidine can impact melanin synthesis, with high doses leading to cytotoxicity while lower doses show potential as a potential stimulator of melanin synthesis.
Melanin plays an important role in determining skin colour. Apoptosis of melanocytes and defect in melanin production cause vitiligo. Various studies have been conducted to treat the disease, but its treatment is still difficult. Therefore, this study aimed to investigate the effect of spermidine, which is known as an inhibitor of ageing-related oxidized proteins, on melanogenesis. Even though spermidine above 50 mu M had no effect on antioxidant activity and DOPA oxidation, it displayed tyrosinase activity. However, spermidine at 2000 mu M was cytotoxic in B16F1 cells using MTT assay. Spermidine above 125 mu M decreased the amount of intracellular hydrogen peroxide in a concentration-dependent manner in DCFH-DA analysis. It was also found that spermidine above 2000 mu M increased melanin synthesis in living cells. However, spermidine above 1000 mu M increased melanin synthesis in a concentration-dependent manner in H2O2-treated B16F1 cells. Furthermore, spermidine enhanced the expression of tyrosine hydroxylase via MITF transcription factor involved in melanogenesis in H2O2-treated B16F1 cells. Therefore, these results suggest that spermidine could be applied as a potential stimulator of melanin synthesis for the prevention of hair greying.
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