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第三方烟雾加剧了H₂O₂-在A549细胞中驱动的气道反应

Rengin Reis¹, Kübra Kolci^1,2, Yağmur Özhan²

¹Acıbadem Mehmet Ali Aydınlar University Faculty of Pharmacy, Department of Toxicology, İstanbul, Türkiye.

Turkish journal of pharmaceutical sciences

|November 21, 2024

概括

第三手烟 (THS) 通过诱导呼吸道细胞中的氧化应激引起呼吸道毒性. 这项研究揭示了THS加剧过氧化引起的氧化损伤,突出其在呼吸系统疾病进展中的作用.

科学领域:

环境健康环境健康
毒理学毒理学毒理学
细胞生物学细胞生物学

背景情况:

第三手烟 (THS) 是粘附于表面的烟草烟雾残留物.
THS再发射对健康构成风险,特别是对于有呼吸道疾病的人来说.

研究的目的:

调查THS诱导的呼吸系统毒性的机制.
评估THS在人类呼吸道上皮细胞中加速氧化应激的潜力.

主要方法:

使用MTT测定评估的细胞毒性.
通过DCFDA光测量反应性氧物种 (ROS).
包括GSH,MDA,CAT和IL-6在内的生物标志物通过光谱测量和ELISA分析.

主要成果:

在A549细胞中,THS (50%v/v) 诱导了显著的细胞毒性和上调的细胞内ROS.
暴露于THS增加了MDA水平和耗尽了GSH,同时增加了CAT活动和IL-6水平.
由THS引起的氧化应激通过与H2O2的同时治疗而被放大,并被N-乙半氨酸减弱.

结论:

氧化应激诱导是THS诱导的呼吸道毒性的关键机制.
通过氧化应激路径,THS可能会导致呼吸系统疾病的进展.

关键词:

慢性呼吸道疾病慢性呼吸道疾病呼吸道炎症呼吸道炎症香烟是指一个香烟.氧化应激是一种氧化应激.第三手烟雾是第三手烟雾.

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