在人类支气管上皮细胞中,由恒温变化引起的甲基非诱导的自和亡
Yeon-Ho Kang1, Sou Hyun Kim2, Hye-Jin Jeong1
1College of Pharmacy, Kyungsung University, Busan 48434, Republic of Korea.
Toxicology
|November 15, 2025
概括
家用杀虫剂甲 (HDM) 导致肺细胞中氧化应激和细胞死亡. 自抑制会加剧这些影响,突出显示HDM暴露对呼吸系统健康的风险.
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:
- 家庭化学品,包括甲 (HDM) 等杀虫剂,在全球广泛使用.
- 这些常见的家用化学品对人类呼吸系统健康的影响仍然不充分理解.
- 研究HDM毒性的细胞机制对于公共卫生至关重要.
研究的目的:
- 研究水甲基 (HDM) 对人类支气管上皮细胞 (BEAS-2B) 的体外影响.
- 阐明氧化应激,自和亡在HDM诱导的细胞损伤中的作用.
- 评估HDM对抗氧化剂防御系统和代谢途径的影响.
主要方法:
- 人类支气管上皮细胞 (BEAS-2B) 被暴露在不同度的HDM (1-4μg/mL) 中24小时.
- 评估了细胞活力,细胞亡标志物 (分裂的酶-3,Bax/Bcl-2,细胞染色体c) 和自流 (LC3B,p62).
- 评估了活性氧物种 (ROS) 水平,抗氧化酶mRNA表达和含硫代谢物.
主要成果:
- 高血压暴露显著增加了氧化应激 (ROS) 和自流失.
- HDM诱导的亡,其证据是分裂的caspase-3,Bax/Bcl-2和细胞染色体c释放的增加.
- HDM降低了抗氧化酶mRNA水平,并破坏了含硫的代谢产物,因自抑制而加剧的效应.
结论:
- 通过诱导氧化应激和破坏细胞功能,HDM暴露对呼吸系统健康构成重大风险.
- 损伤的自流和线粒体介导的亡是HDM毒性的关键机制.
- 调查结果强调,需要加强对家用杀虫剂 (如HDM) 的安全评估.
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