一个由m6驱动的正反电路A-修改圆形RNA促进结直肠癌肝脏转移
Kaixuan Zeng1, Jianhong Peng2,3, Yue Xing4,5
1Precision Medical Research Institute, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710000, China.
Molecular cancer
|December 13, 2023
概括
循环RNAYAP (circ-YAP) 通过编码YAP-220aacoprotein来促进结直肠癌肝脏转移. 这种circRNA在转移性CRC中被上调,并提供了潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 肝转移是结直肠癌 (CRC) 中的主要死亡原因.
- 循环RNAs (circRNAs) 越来越多地被认为是癌症进展中的角色.
- 在CRC肝转移中circRNAs的具体参与尚未得到充分理解.
研究的目的:
- 研究circ-YAP在结直肠癌肝转移中的作用和机制.
- 确定circ-YAP作为CRC的潜在生物标志物和治疗点.
主要方法:
- 定量实时PCR (qRT-PCR) 和现场杂交以检测circ-YAP表达.
- 在体外测试 (伤口愈合,Transwell,CCK-8) 以评估细胞迁移和入侵.
- 使用患者衍生异种移植 (PDX) 和CRC肝转移的动物模型的体内研究.
- 分子测定包括RNA免疫沉降,拉下,光酶记者和染色体免疫沉降测定以阐明机制.
主要成果:
- 在CRC肝转移中,Circ-YAP显著上调,与预后不佳相关.
- 在体外,Circ-YAP增强了CRC细胞迁移和入侵,并在体内促进了肝转移.
- Circ-YAP编码了一种新型的220氨基酸YAP蛋白 (YAP-220aa),通过通过YAP脱和核转移激活转移相关基因来促进转移.
- 由YTHDF3和eIF4G2介导的N6-甲基氨酸 (m6A) 修饰,启动了circ-YAP翻译.
- 在YAP/TEAD增强circ-YAP转录的地方发现了一个积极的反循环.
结论:
- 在结直肠癌肝脏转移中,Circ-YAP充当瘤蛋白.
- Circ-YAP及其编码的YAP-220aa蛋白为肝转移的CRC患者提供了一个有前途的生物标志物和治疗标.
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