Anti-melanogenic effect and mechanism of oxypaeoniflorin derived from edible Paeonia ostii flower on melanogenesis in B16F10 cells and zebrafish
文献类型: 外文期刊
作者: Kejie Peng;Yixuan Wang;Zhangtie Wang;Jing Wang;Yuhang Zhu;Qiannan Pan;Yumeng Li;Jian Mu;Xiuxin Zhang;Baiyi Lu
作者机构:
关键词: Melanogenesis;Nrf2;Oxidative stress;Oxypaeoniflorin;Paeonia ostii flower
期刊名称: Food Bioscience
ISSN: 2212-4292
年卷期: 2025 年 73 卷
页码:
收录情况: SCIE(2025版) ; ; 农林核心(2024版)
摘要: The Paeonia ostii flower (POF), an approved novel food resource, exhibits skin-lightening properties. However, its bioactive components and mechanisms remain unclear. Among the identified constituents through UPLC-MS/MS quantification, oxypaeoniflorin, a characteristic monoterpene glycoside in POF, was prioritized for further investigation due to its potent performance in molecular docking and tyrosinase inhibition assays. Our assessments of melanin content and tyrosinase activity in both B16F10 cells and zebrafish, combined with stereomicroscopic analysis of endogenous melanin deposition, revealed that oxypaeoniflorin significantly inhibited melanin synthesis. These effects were comparable to the positive control arbutin. Mechanistic studies revealed that oxypaeoniflorin suppressed oxidative stress by lowering ROS and NADP+/NADPH ratio while regulating GSH synthesis. Downregulation of key melanogenic proteins (MC1R, MITF, TYR, TRP-1, TRP-2, PMEL) was validated by qPCR and Western blotting. Transmission electron microscopy further demonstrated impaired melanosome maturation by oxypaeoniflorin. RNA-seq identified the Nrf2 pathway as the core mechanism for melanogenesis inhibition, with qPCR and Western blotting revealing significant upregulation of Nrf2, HO-1, and NQO1. Molecular docking further supported oxypaeoniflorin's interactions with KEAP1 and Nrf2. These findings demonstrate oxypaeoniflorin's potential as a natural melanogenesis inhibitor and provide a scientific basis for developing POF-derived nutricosmetic ingredients.
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