叶酸作为一种保护细胞免受紫外线辐射负面影响的分子 - - 一项体外研究
Magdalena Jurzak1, Paweł Ramos2, Barbara Pilawa3
1Department of Biotechnology and Genetic Engineering, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland.
Pharmaceuticals (Basel, Switzerland)
|October 29, 2025
概括
叶酸 (FA) 通过减少自由基和改变细胞周期基因表达,显示出其作为护肤化品和药品成分的潜力.
科学领域:
- 皮肤病学和化学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 叶酸 (维生素B9) 对于细胞过程至关重要.
- 紫外线 (UV) 辐射诱导自由基,造成皮肤损伤.
- 化品的目的是保护皮肤免受环境伤害,叶酸是潜在的毒剂.
研究的目的:
- 用一个体外细胞培养模型评估叶酸作为UV保护剂的有效性.
- 为了研究叶酸与紫外线辐射产生的自由基的相互作用.
- 评估紫外线辐射对受叶酸保护的纤维细胞循环调节基因的影响.
主要方法:
- 在体外培养正常的人体皮肤纤维细胞 (NHDF-Ad).
- 电子磁共振 (EPR) 光谱分析自由基相互作用.
- 定量逆转录聚合酶链反应 (RT-qPCR) 用于测量基因表达 (CCND1,P53,BAX,BCL-2).
主要成果:
- EPR研究证实了叶酸的抗氧化特性及其与紫外线诱导的自由基的相互作用.
- 与单独暴露于紫外线的细胞相比,在用叶酸治疗的紫外线暴露的细胞中观察到BAX/BCL-2比率的显著下降.
- 紫外线辐射诱导了叶酸的自由基形式,在被辐射的样本中观察到的相互作用较弱.
结论:
- 无论是EPR还是分子研究,都支持叶酸作为UV保护成分的有效性.
- 叶酸在用于皮肤保护的化品和制药应用中表现有前途.
- 需要进一步的研究,以充分阐明叶酸在紫外线保护中的机制和应用.
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