从桃子牙中分离出来的多糖的结构特征和对UVB辐射的保护作用
Yi Zhang1, Shilian Zheng2, Haoyu Si3
1Crop Breeding & Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Runzhuang Agricultural Technology Co., Ltd., Shanghai 201415, China.
International journal of biological macromolecules
|April 28, 2025
概括
桃子多糖 (PGPs) 显示作为天然抗光衰老成分的承诺. PGP-1有效地减少了原体的损失,并抑制了UVB暴露引起的皮肤细胞衰老和亡.
科学领域:
- 生物化学 生物化学
- 皮肤病学 皮肤病学
- 化品科学 化品科学
背景情况:
- 桃子多糖 (PGPs) 正因其生物活性而受到越来越多的关注.
- 目前正在探索食品和化品中的应用.
- 了解它们的抗光衰老潜力至关重要.
研究的目的:
- 研究PGP的结构特征.
- 评估PGP的抗光衰老活性.
- 为了确定PGP的安全性.
主要方法:
- 将PGP净化为PGP-1和PGP-2.
- 使用GC-MS和NMR进行结构阐明.
- 对UVB诱导的HaCaT细胞的抗光衰老作用的评估.
- 使用胚胎CAM进行粘膜刺激的评估.
主要成果:
- 鉴定出PGP-1 (4515.31 kDa) 和PGP-2 (15.02 kDa) 是阿拉伯类银河.
- PGPs没有显示出粘膜刺激.
- PGP-1显著抑制了UVB诱导的MMPs (MMP-1,MMP-3,MMP-12) 的表达.
- 通过降低p16,p21和p53蛋白质的调节,PGP-1减少了细胞衰老和细胞亡.
结论:
- 聚乙烯具有适用于化品应用的结构特征.
- PGP-1通过保护抗UVB损伤,显示出显著的抗光衰老特性.
- 皮肤增生蛋白是开发有效的抗光衰老产品的潜在天然成分,以提高皮肤健康.
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