在鼻癌中,TRIM29作为潜在的衰老抑制剂,具有表观遗传激活作用
Caifeng Yue1,2, Yuanmin Qian1, Chang Wang1,3
1Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.
Cancer science
|May 30, 2023
概括
鼻癌 (NPC) 的表观遗传变化涉及TRIM29,一个基因,当低甲基化和过度表达时,促进瘤生长. TRIM29调节菌和活性氧物种 (ROS) 以防止细胞衰老,为早期NPC检测提供潜力.
科学领域:
- 在瘤学瘤学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 表观遗传变化,特别是DNA甲基化,在鼻癌 (NPC) 的发展中至关重要.
- 了解特定基因在NPC早期发病过程中的作用,对于有效的诊断和治疗至关重要.
研究的目的:
- 研究TRIM29在鼻癌 (NPC) 发展中的作用及其作为早期检测生物标志物的潜力.
- 阐明TRIM29影响NPC细胞生长,衰老和活性氧物种 (ROS) 水平的分子机制.
主要方法:
- 在NPC细胞系和患者组织中分析DNA甲基化和TRIM29表达.
- 在体外和体内实验涉及TRIM29沉默NPC细胞的实验.
- 研究TRIM29与VDAC1的相互作用及其在线粒和ROS调节中的作用.
- 从NPC患者的鼻拭片DNA中检测TRIM29甲基化的检测.
主要成果:
- 发现TRIM29在NPC中被低甲基化和过度表达.
- TRIM29沉默抑制了NPC细胞生长,诱导衰老,并增加了ROS积累.
- TRIM29与VDAC1相互作用,促进线粒,清除产生ROS的受损线粒体.
- 高TRIM29表达与NPC患者的晚期临床阶段相关.
- 在鼻抽样DNA中检测到异常甲基化的TRIM29.
结论:
- 通过VDAC1-介导的线粒,TRIM29抑制ROS,并防止NPC中的细胞衰老.
- TRIM29低甲基化和过度表达是NPC发展中的重要事件.
- 在鼻抽样中检测TRIM29甲基化,为早期NPC检测提供了一个有前途的途径.
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