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由PCBP1-介导的ferritinophagy引起的TBBPA诱导的肝细胞铁亡

Rui-Qi Liu¹, Yu-Tong Wu¹, Yue Cheng¹

¹College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.

Journal of hazardous materials

|May 13, 2025

概括

博乙烯 (TBBPA) 暴露会通过诱导铁亡,一种与铁代谢相关的细胞死亡形式,导致肝损伤. 过度表达的Poly (rC) 结合蛋白1 (PCBP1) 通过调节费里丁菌来保护TBBPA诱导的肝损伤.

科学领域:

环境毒理学环境毒理学
细胞生物学细胞生物学
肝病学肝病学是一种肝病学.

背景情况:

二甲 (TBBPA) 是一种普遍存在的制阻燃剂和新兴的环境污染物.
铁,一种依赖于铁的细胞死亡途径,与各种肝脏疾病有关.
铁素,一种选择性自过程,在铁的稳态和铁灭诱导中起着至关重要的作用.

研究的目的:

研究哺乳动物TBBPA诱导的肝损伤背后的分子机制.
探讨聚基结合蛋白1 (PCBP1) 在TBBPA介导的肝毒性中的特定作用.

主要方法:

在体内评估TBBPA暴露后的肝脏病理损伤和线粒体形态.
在肝细胞中评估谷氨水平,脂质过氧化和铁亡标志物.
分析ferritinophagy激活和PCBP1调制对TBBPA诱导的铁亡的影响.

主要成果:

暴露于TBBPA导致严重的肝脏病理损伤和线粒体功能障碍.
TBBPA加剧了谷氨的耗尽和脂质过氧化,这是铁亡的关键指标.
TBBPA激活了ferritinophagy,这是一个由PCBP1过度表达抑制的过程,从而减轻了ferroptosis.

结论:

通过激活ferritinophagy,TBBPA通过激活ferritinophagy触发肝细胞铁,这代表了肝损伤的新机制.
PCBP1被确定为肝脏铁稳态的关键调节剂,并对TBBPA诱导的铁亡起着保护作用.
这些发现表明PCBP1是治疗TBBPA相关肝脏疾病的潜在治疗点.

关键词:

费里丁诺巴基 (Ferritinophagy) 是一种对铁素的消化.铁化是铁化的一种.肝细胞肝细胞一个PCBP1一个PCBP1 TBBPA TBBPA 这是一个很好的方法.

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