Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China.
Huzhou China-Science Innovation Centre of Plateau Biology, Huzhou 313000, China.
Int J Mol Sci. 2024 May 29;25(11):5939. doi: 10.3390/ijms25115939.
Petanin, an acylated anthocyanin from the Solanaceae family, shows potential in tyrosinase inhibitory activity and anti-melanogenic effects; however, its mechanism remains unclear. Therefore, to investigate the underlying mechanism of petanin's anti-melanogenic effects, the enzyme activity, protein expression and mRNA transcription of melanogenic and related signaling pathways in zebrafish using network pharmacology, molecular docking and molecular dynamics simulation were combined for analysis. The results showed that petanin could inhibit tyrosinase activity and melanogenesis, change the distribution and arrangement of melanocytes and the structure of melanosomes, reduce the activities of catalase (CAT) and peroxidase (POD) and enhance the activity of glutathione reductase (GR). It also up-regulated JNK phosphorylation, inhibited ERK/RSK phosphorylation and down-regulated CREB/MITF-related protein expression and mRNA transcription. These results were consistent with the predictions provided through network pharmacology and molecular docking. Thus, petanin could inhibit the activity of tyrosinase and the expression of tyrosinase by inhibiting and negatively regulating the tyrosinase-related signaling pathway ERK/CREB/MITF through p-JNK. In conclusion, petanin is a good tyrosinase inhibitor and anti-melanin natural compound with significant market prospects in melanogenesis-related diseases and skin whitening cosmetics.
滇丁香酰基花青苷是茄科植物中的一种酰基花青苷，具有潜在的酪氨酸酶抑制活性和抗黑色素生成作用；然而，其作用机制尚不清楚。因此，为了研究滇丁香酰基花青苷的抗黑色素生成作用机制，采用网络药理学、分子对接和分子动力学模拟相结合的方法，对斑马鱼黑色素生成及相关信号通路的酶活性、蛋白表达和 mRNA 转录进行分析。结果表明，滇丁香酰基花青苷能抑制酪氨酸酶活性和黑色素生成，改变黑素细胞的分布和排列以及黑素小体的结构，降低过氧化氢酶（CAT）和过氧化物酶（POD）的活性，增强谷胱甘肽还原酶（GR）的活性。它还能上调 JNK 磷酸化，抑制 ERK/RSK 磷酸化，下调 CREB/MITF 相关蛋白表达和 mRNA 转录。这些结果与网络药理学和分子对接的预测结果一致。因此，滇丁香酰基花青苷可以通过抑制和负调控酪氨酸酶相关信号通路 ERK/CREB/MITF 来抑制酪氨酸酶的活性和表达。综上所述，滇丁香酰基花青苷是一种良好的酪氨酸酶抑制剂和抗黑色素天然化合物，在黑色素生成相关疾病和皮肤美白化妆品方面具有广阔的市场前景。
