RAD51 m6A和PARylation修饰编排素诱导的血液毒性
Lin Chen1, Fengzhen Cui1, Han Li1
1School of Public Health, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, Guangdong 523808, China.
Journal of hazardous materials
|December 31, 2025
概括
RAD51是一种DNA修复蛋白,由代谢物化上调,抑制DNA损伤. 这表明RAD51可能是暴露个体中素诱导的血液毒性生物标志物.
科学领域:
- 环境健康 环境健康
- 分子生物学分子生物学
- 毒理学 毒理学 毒理学
背景情况:
- 职业暴露是白血病的已知原因之一.
- 关于的毒性,RAD51在DNA损伤修复中的作用尚不清楚.
研究的目的:
- 调查RAD51在诱导的血液毒性中的作用.
- 确定潜在的生物标志物来监测暴露的健康风险.
主要方法:
- 人类淋巴细胞 (TK6) 暴露于基 (HQ),的代谢物.
- 分析RAD51表达及其通过METTL3和YTHDC1.1的调节.
- 在RAD51.1.上研究PARP1-介导的PARylation.
- 检查职业接触的工人的淋巴细胞中的蛋白质表达.
主要成果:
- 化暴露可提高TK6细胞中的RAD51表达的调节,抑制DNA损伤.
- 通过METTL3介导的m6A修饰和YTHDC1结合增强了RAD51的表达.
- 通过PARP1介导的PARylation进一步减少了HQ诱导的DNA损伤.
- 在暴露于的工人的淋巴细胞中,RAD51,PARP1,YTHDC1和METTL3的升高调节.
结论:
- RAD51对氨酸诱导的DNA损伤起着保护作用.
- METTL3-YTHDC1通路调节RAD51的表达,以应对代谢物暴露.
- 在暴露的人群中,RAD51显示出作为评估诱导血液毒性的生物标志物的潜力.
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