miR-451a和miR-486-5p:为素诱导的血液毒性的生物标志物
Yanrong Lv1, Zongxin Li2,3, Yuncong Chen3
1Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China.
Archives of toxicology
|December 14, 2024
概括
微RNAsmiR-451a和miR-486-5p是引起的红细胞损伤的关键参与者. miR-451a显示为检测血毒性的敏感生物标志物具有前途.
科学领域:
- 毒理学 毒理学 毒理学
- 分子生物学分子生物学
- 生物标志物发现发现
背景情况:
- 的暴露准了造血系统,导致潜在的损伤.
- 作为引起的血液毒性敏感生物标志物,正在研究外周血液的微RNA (miRNAs).
- 了解特定miRNAs在红状腺损伤中的作用对于早期检测和干预至关重要.
研究的目的:
- 在暴露于的小鼠和人类中研究miR-451a和miR-486-5p的表达模式.
- 评估这些miRNAs与红细胞指数 (红细胞计数,血红蛋白,血红素) 之间的相关性.
- 评估miR-451a和miR-486-5p作为诱导血毒性生物标志物的潜力.
主要方法:
- 动物实验 (C57BL/6J小鼠) 和人类研究 (患有慢性中毒的患者,石化工人).
- 在骨髓和周围血液中测量miR-451a和miR-486-5p的表达.
- 与红细胞指数 (RBC,Hb,HCT) 的相关性分析.
- 用于生物标志物评估的接收器操作员特征 (ROC) 曲线分析.
- 在体外实验中使用K562细胞和代谢物化 (HQ) 的实验.
主要成果:
- 素暴露在小鼠骨髓中降低了miR-451a和miR-486-5p的表达,与红细胞,HB和HCT正相关.
- 这些miRNAs的外周血液表达在小鼠中增加,与红色球体指数负相关.
- 在人体样本中证实了显著的相关性,将miRNA水平与红细胞参数联系起来.
- 通过ROC分析,miR-451a与miR-486-5p和传统指数相比,作为生物标志物表现出更高的区分能力.
- 氨酸在实验室中显示出miR-451a表达的差异调节,这取决于红状腺分化状态.
结论:
- miR-451a和miR-486-5p在破坏诱导的红色生成中发挥着重要作用.
- miR-451a显示出强大的潜力作为一种敏感和特定的生物标志物,用于诱导的血液毒性.
- 这些发现为开发新的生物标志物和暴露治疗策略提供了洞察力.
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