TFAP2C通过转录调节影响PI3K/AKT/mTOR途径介导的EMT,以促进质母细胞瘤的发展
Shilin Li1, Kebo Liu1, Xiaoyang Li2
1Department of Neurosurgery, Hunan University of Medicine General Hospital, Huaihua, China.
转录因子AP-2 (TFAP2C) 通过激活PI3K/AKT/mTOR通路来促进质母细胞瘤 (GBM) 的生长. TFAP2C直接结合PI3K促进体,为GBM治疗提供了潜在的治疗标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 转录因子AP-2 (TFAP2C) 与各种癌症有关.
- 在质母细胞瘤 (GBM) 中TFAP2C的作用仍然未被探索.
研究的目的:
- 研究TFAP2C在GBM中的功能.
- 阐明潜在的分子机制,包括其与PI3K/AKT/mTOR (PAM) 途径的关联.
主要方法:
- 在GBM细胞系中进行TFAP2C敲除,以评估增殖,迁移,入侵 (PMI) 和上皮-介质细胞转变 (EMT).
- 对PAM通路的分析,包括PI3K联合过度表达和AKT激动剂 (SC79) 治疗.
- 对PI3K发起人具有约束力的TFAP2C的验证.
- 在体内进行动物实验以证实研究结果.
主要成果:
- 在GBM细胞中,TFAP2C表达升高,与患者存活时间减少相关.
- TFAP2C沉默抑制了GBM细胞PMI和EMT标记物 (N-cadherin,Vimentin),同时上调了表皮标记物 (E-cadherin,ZO-1).
- TFAP2C沉默抑制了PAM通路;PI3K或SC79扭转了这些影响.
- TFAP2C直接与PI3K促进体结合,增强其转录.
结论:
- 通过PAM通路,TFAP2C促进GBM细胞的增殖,迁移,入侵和EMT.
- TFAP2C作为PI3K的转录调节剂,突出其在GBM中的致癌作用.
- TFAP2C代表了质母细胞瘤的潜在治疗点.
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