ATAD2和TWIST1的相互作用促进了MYC在结肠直肠癌中的激活
Anirban Roy1, Babu Sudhamalla1
1Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India.
ATPase家族AAA域含有蛋白2 (ATAD2) 和TWIST1相互作用激活MYC,推动结肠癌细胞的增殖和生存率低下. 这个ATAD2-TWIST1-MYC轴是一个潜在的治疗目标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症遗传学 癌症遗传学
背景情况:
- 在许多癌症中,ATPase家族AAA域含有蛋白2 (ATAD2) 的上调,与患者的不良结果相关.
- ATAD2的多域结构包括AAA+ ATPase和域,参与蛋白相互作用和表观遗传调节.
- ATAD2通过Rb-E2F1,PI3K/AKT和TGF-β1/Smad3.3等途径影响癌症的进展.
研究的目的:
- 为了研究ATAD2和TWIST1在结直肠癌中的相互作用.
- 阐明ATAD2-TWIST1相互作用对MYC基因激活的功能后果.
- 为了确定ATAD2-TWIST1-MYC轴在结直肠癌中的临床相关性.
主要方法:
- 免疫光检测以评估ATAD2和TWIST1的亚细胞定位.
- 定量PCR (qPCR) 用于评估MYC转录激活.
- 染色体免疫沉,其次是qPCR (ChIP-qPCR) 来确定基因促进体占用率.
- 分析TCGA和CPTAC数据集与患者存活时间的相关性.
主要成果:
- ATAD2直接与TWIST1相互作用,主要局限于核.
- ATAD2-TWIST1相互作用在结直肠癌细胞中协同激活MYC转录.
- ATAD2和TWIST1与MYC基因促进体结合,它们的共同过度表达与结直肠癌患者的生存率差相关.
- 过度表达ATAD2和TWIST1通过MYC激活增强细胞增殖.
结论:
- ATAD2对于TWIST1介导的MYC基因激活至关重要.
- 一个活跃的ATAD2-TWIST1-MYC轴促进结肠癌细胞的增殖.
- ATAD2-TWIST1-MYC轴代表了结直肠癌中的潜在治疗标.
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