通过调节PRDX1相分离,LncFASA促进癌症铁灭
Xiao Fan1,2,3,4, Fangzhou Liu5,6,7,8, Xiang Wang9,10
1MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
Science China. Life sciences
|November 13, 2023
概括
长非编码RNALncFASA促进铁亡,这是三阴性乳腺癌中的细胞死亡途径. 高LncFASA表达与更好的生存率和减少瘤生长相关.
科学领域:
- 生物化学 生化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 铁,依赖于铁的脂质过氧化,与瘤抑制有关.
- 精确的调节铁亡的机制,特别是在三阴性乳腺癌 (TNBC) 中,仍然不完全理解.
研究的目的:
- 研究长非编码RNA (lncRNA) LncFASA在TNBC中调节铁亡的作用.
- 阐明LncFASA影响铁和乳腺癌进展的分子机制.
主要方法:
- 对乳腺癌中LncFASA表达的分析.
- 调查LncFASA和Peroxiredoxin1 (PRDX1) 的相互作用.
- 在体内评估LncFASA对脂质过氧化,ROS稳态和瘤生长的影响.
主要成果:
- 通过促进含有PRDX1的滴滴形成,LncFASA增强了TNBC对铁亡的敏感性.
- 通过液-液相分离,LncFASA抑制PRDX1活动,通过SLC7A11-GPX4轴扰乱ROS稳态.
- 高LncFASA表达与乳腺癌患者的整体生存率的改善有关,并抑制异种移植瘤的生长.
结论:
- 通过诱导乳腺癌中的铁亡,LncFASA作为瘤抑制剂起作用.
- LncFASA-PRDX1相互作用为基于铁灭的癌症治疗提供了一个新的治疗标.
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