长非编码RNA ROSALIND保护线粒体的翻译机制免受氧化损伤
Vicky Katopodi1, Alessandro Marino1, Nikoleta Pateraki1
1Laboratory for RNA Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium.
Cell death and differentiation
|September 18, 2024
概括
研究人员发现了ROSALIND,一种新型的lncRNA,可以保护线粒体核糖体免受癌细胞中氧化应激的影响. 这一发现为克服耐药性和改善癌症治疗结果提供了新的治疗点.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 生物化学 生物化学
背景情况:
- 耐药癌细胞表现出 mitochondrial 呼吸和 ROS-scavenging 的增加.
- 保护线粒体核糖体免受氧化损伤对于细胞生存至关重要,但机制尚不清楚.
- 氧化应激会影响转化忠实性,这对细胞健康至关重要.
研究的目的:
- 确定保护线粒体核糖体免受氧化损伤的机制.
- 研究核编码 lncRNAs 在线粒体保护中的作用.
- 探索ROSALIND作为癌症中潜在的治疗点.
主要方法:
- 在线粒体矩阵中的酸盐过氧化酶 (APEX) 接近性结合试验.
- 与线粒体蛋白相关联的RNA的分离和测序.
- 分析患者瘤样本中的ROSALIND表达及其功能影响.
主要成果:
- 鉴定了ROSALIND,一个与线粒体核糖体相互作用的核编码 lncRNA.
- 在复发性瘤中,ROSALIND被上调,并预测了对免疫检查点阻塞的反应.
- 抑制ROSALIND会增加ROS,损害线粒体呼吸,并降低黑色素瘤细胞活力.
- 罗斯林德作为ROS缓冲系统,保护线粒体的翻译.
结论:
- 罗斯林德是一种新的ROS清理 lncRNA保护线粒体翻译.
- 花在癌细胞适应氧化压力的过程中起着至关重要的作用.
- 向ROSALIND可能提供一种克服癌症治疗耐药性和增强免疫性策略.
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