CircCPSF6通过通过海绵化miR-145-5p调节MAP4K4,促进肝细胞癌的癌症进展
1The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
Molecular and cellular probes
|July 13, 2023
概括
像circCPSF6这样的循环RNAs (circRNAs) 通过海绵miR-145-5p促进肝细胞癌 (HCC),从而调节MAP4K4.4. 这个circCPSF6-miR-145-5p-MAP4K4轴是HCC的潜在治疗目标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 异常的循环RNA (circRNA) 表达与肝细胞癌 (HCC) 的进展有关.
- 这项研究研究了HCC中的原瘤性circRNA,重点关注circCPSF6的作用.
研究的目的:
- 在HCC中选和表征亲瘤起源的circRNA.
- 阐明circCPSF6影响HCC特征的分子机制.
主要方法:
- 在HCC组织和细胞系中使用qRT-PCR量化circCPSF6表达.
- 功能性测试 (CCK-8,Transwell,异种移植模型) 评估了circCPSF6对HCC扩散,迁移和进展的影响.
- 生物信息分析, luciferase 记者测定,RNA 下拉,FISH 和 RIP 测定确定了 circCPSF6 调控网络.
主要成果:
- circCPSF6的表达在HCC中升高,与瘤严重程度和较差的存活率相关.
- 通过circCPSF6 knockdown抑制了,同时促进了过度表达,HCC瘤发生.
- circCPSF6通过菌miR-145-5p作为竞争的内源RNA (ceRNA) 起作用,导致其基因MAP4K4.4的上调.
结论:
- 一个circCPSF6-miR-145-5p-MAP4K4调节轴驱动HCC的进展.
- 这个轴呈现了肝细胞癌的潜在生物标志物和治疗点.
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