过氧化物减少颗粒物质2.5-诱导的内等质网膜应激和皮肤细胞老化
Pincha Devage Sameera Madushan Fernando1, Mei Jing Piao1, Herath Mudiyanselage Udari Lakmini Herath2
1Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea; Department of Biochemistry, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea.
概括
超氧化物保护皮肤细胞免受颗粒物2.5 (PM$_{2.5}$) 造成的损伤,通过减少氧化应激,内质网膜应激和细胞衰老. 这种天然化合物为环境污染物引起的皮肤衰老提供了治疗潜力.
科学领域:
- 皮肤病学和环境健康
- 分子生物学和生物化学 分子生物学和生物化学
- 自然产品化学 自然产品化学
背景情况:
- 暴露于颗粒物2.5 (PM$_{2.5}$) 是一个重要的环境因素,导致皮肤衰老,炎症和皮肤屏障功能受损.
- 氧化应激是PM$_{2.5}$引起的皮肤损伤的关键机制.
- 超氧化物是一种植物衍生的醇糖化物,表现出抗氧化特性,并因其对细胞损伤的保护作用而受到研究.
研究的目的:
- 评估超酸对人类皮肤细胞 (HaCaT角质细胞) 中的PM$_{2.5}$诱导的损伤的细胞保护作用.
- 为了研究超氧化物对PM$_{2.5}$诱导的内等质网膜 (ER) 应激,细胞衰老和细胞循环调节的影响.
- 评估hyperoside作为治疗剂的潜力,以减轻空气污染对皮肤健康的不良影响.
主要方法:
- 人类HaCaT角质细胞被先用高氧化物预处理,然后暴露于PM$_{2.5}$.
- 西方涂抹被用于分析ER压力标记 (PERK,ATF6,IRE1),细胞循环调节蛋白和衰老标记 (MMP-1,MMP-9).
- 殖民地形成试验评估了细胞增殖,与衰老相关的β-银酸酶染色评估了细胞衰老.
主要成果:
- 超氧化物对PM$_{2.5}$暴露产生显著的细胞保护和抗氧化作用.
- 过氧化物抑制的PM$_{2.5}$诱导ER压力和线粒体损伤.
- 过氧化物治疗恢复了PM$_{2.5}$受损的细胞增殖,促进了细胞循环的进展,并减少了衰老标志物.
结论:
- 超氧化物通过减轻ER压力,氧化应激和细胞衰老,有效地改善PM$_{2.5}$诱导的皮肤细胞损伤.
- 超氧化物使细胞循环进展正常化,并抑制与衰老相关的酶和矩阵金属蛋白酶的表达.
- 这些发现表明,超氧化物作为一种治疗策略,有望抵消环境污染物对皮肤健康的有害影响.
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