N6-甲基氨酸阅读器YTHDF3介导的Lcn2mRNA稳定性促进了crizotinib的肝毒性
Ruijuan Liu1,2, Huihui Liu1,2, Haoyang Chen1,2
1Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
概括
克里佐替尼因通过YTHDF3-LCN2通路诱导亡而导致肝损伤. 对YTHDF3的下调会增加LCN2,促进细胞死亡,为预防crizotinib肝毒性提供标.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 克里佐替尼是对ALK阳性非小细胞肺癌的标准治疗方法.
- 克里佐尼布诱导的肝损伤是一个重要的临床挑战,需要机械的理解.
- 鉴定药物诱导的肝损伤机制对于患者的安全至关重要.
研究的目的:
- 为了阐明crizotinib诱导的肝损伤的机制.
- 为了确定减轻crizotinib肝毒性的潜在治疗点.
- 调查N6-甲基氨酸 (m6A) 阅读蛋白YTHDF3在crizotinib诱导的肝损伤中的作用.
主要方法:
- 已建立的鼠标和细胞模型的crizotinib诱导的肝损伤.
- 使用RNA测序,MeRIP-seq和MeRIP-qPCR来识别m6A目标.
- 进行了LCN2和YTHDF3.3的基因操纵 (抑制/过度表达).
主要成果:
- 克里佐替尼在肝细胞和组织中诱导了亡.
- 在接受了crizotinib治疗的模型中,YTHDF3的调节下降,而LCN2的调节上升.
- 抑制LCN2或过度表达YTHDF3可以减少crizotinib诱导的亡.
- YTHDF3以m6A-依赖的方式调节LCN2mRNA的稳定性.
结论:
- YTHDF3-LCN2-亡轴是crizotinib诱导的肝损伤的一个关键媒介.
- 通过降低LCN2表达的调节,YTHDF3充当瘤抑制剂.
- 针对YTHDF3-LCN2通路提供了预防crizotinib肝毒性的潜在策略.
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