通过超强增强器读取器BRD4的介导,CENP-F促进了HCC细胞的增殖
Yunhui Liu1, Wenjiao Chen2, Yuxin Niu1
1Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious Disease, Huazhong University of Science and Technology, 1095, Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
Discover oncology
|October 29, 2025
概括
中核蛋白F (CENP-F) 通过调节CDK1/CDK2-BRD4轴,促进肝细胞癌 (HCC) 细胞增殖. 这项研究揭示了CENP-F.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 中心蛋白蛋白F (CENP-F) 在肝细胞癌 (HCC) 中过度表达.
- 在HCC进展中CENP-F的作用的确切机制仍然难以捉摸.
- 超级增强剂 (SE) 阅读器,包括BRD4,CDK1,CDK2和CDK7,在HCC中表现出增加的活性.
研究的目的:
- 阐明CENP-F在HCC发展中的监管机制.
- 调查CENP-F与HCC中的关键细胞循环调节器和SE阅读器之间的关联.
主要方法:
- 生物信息学分析.
- 使用HepG2和Hep3B细胞系进行体外细胞实验.
- 在小鼠体内异种移植瘤模型.
- 通过敲击 (siRNA) 和药理抑制 (JQ1) 操纵CENP-F和BRD4表达.
主要成果:
- 在HCC组织中,CENP-F,CDK1,CDK2,CDK7和BRD4的蛋白质水平升高.
- CENP-F表达与CDK1,CDK2,CDK7和BRD4.4正相关.
- CENP-F下调抑制了HCC细胞增殖,并降低了CENP-F,CDK1,CDK2,BRD4和c-Myc的蛋白质水平.
- 降低了BRD4和c-Myc蛋白的水平.
- 在体内,CENP-F和BRD4的抑制都抑制了瘤的生长.
结论:
- 通过CENP-F-CDK1/CDK2-BRD4信号轴,CENP-F促进了HCC细胞的增殖.
- 超级增强剂是HCC病变发生和潜在治疗点的关键媒介.
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