长非编码RNAFEZF1-AS1通过KIAA1429介导的m6A修饰抑制多发性骨髓瘤细胞中的铁亡
Qing Su1, Weiliang Liu2, Peijin Wang3
1Department of Bone Oncology, Yantai Shan Hospital, Yantai, 264001, China.
Human cell
|October 14, 2025
概括
长非编码RNAFEZF1-AS1通过抑制铁亡,促进多发性骨髓瘤细胞的存活. 这通过一种涉及KIAA1429介导的OTUB1m6A修饰的途径发生,该修饰稳定了SLC7A11表达.
科学领域:
- 血液学恶性瘤是什么
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 多发性骨髓瘤 (MM) 是血细胞的癌症.
- 了解驱动MM进展的分子机制对于开发新疗法至关重要.
- 细胞死亡的调节形式铁亡与癌症有关,但其在MM中的作用需要进一步阐明.
研究的目的:
- 调查长非编码RNAFEZF1-AS1在调节多发性骨髓瘤细胞中铁亡的作用.
- 阐明涉及KIAA1429介导的N6-甲基氨酸 (m6A) 修饰和OTUB1在这个过程中的分子机制.
- 确定MM的潜在治疗点.
主要方法:
- 定量实时PCR和西部斑分析,以评估基因和蛋白质表达.
- 细胞活力测定,反应性氧物种 (ROS) 检测,以及对铁亡标记物的评估 (GSH,Fe2+,MDA,SLC7A11,GPX4,ACSL4).
- RNA下拉,RNA免疫沉降 (RIP) 和共免疫沉降试验用于验证分子相互作用和修饰.
主要成果:
- FEZF1-AS1,KIAA1429和OTUB1在MM细胞中表达高.
- FEZF1-AS1敲击降低了MM细胞的活力,并诱导了铁亡.
- FEZF1-AS1通过IGF2BP3稳定KIAA1429mRNA;KIAA1429促进OTUB1mRNA的m6A修饰,增加其稳定性和表达;OTUB1使SLC7A11脱并稳定,抑制铁灭.
结论:
- FEZF1-AS1通过通过KIAA1429/m6A/OTUB1/SLC7A11轴抑制铁亡,促进MM细胞的生存.
- 准FEZF1-AS1或其下游效应因子可能代表多发性髓瘤的新疗法策略.
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