SIX1 和 EWS/FLI1 共同调节了尤文肉瘤中的抗转移基因网络
Connor J Hughes1,2,3, Kaiah M Fields3,4, Etienne P Danis3
1Medical Scientist Training Program, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
Nature communications
|July 19, 2023
概括
这种SIX1蛋白通过与EWS/FLI1coprotein一起工作,意外地抑制了Ewing肉瘤 (ES) 的转移. 这一发现为控制ES传播和改善患者结果提供了新的见解.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学是一种遗传学.
背景情况:
- 尤文肉瘤 (ES) 是一种具有侵略性的儿科癌症,由于早期转移,预后不佳.
- EWS/FLI1融合蛋白是ES瘤发生和转移的关键驱动因素.
- 众所周知,SIX1通常会在各种癌症中增强转移.
研究的目的:
- 为了研究SIX1在Ewing肉瘤转移中的作用.
- 阐明SIX1影响ES细胞行为和传播的机制.
- 确定SIX1与ES中的EWS/FLI1蛋白之间的关系.
主要方法:
- 在ES细胞中分析SIX1蛋白表达.
- 对SIX1和EWS/FLI1.1的全基因组结合特征分析.
- 转录造型,以确定共同调节的基因.
- 在小鼠模型中进行体内转移检测.
- 通过SIX1.1.对整蛋白调节的功能研究.
主要成果:
- 在尤文肉瘤中,SIX1抑制,而不是增强转移.
- SIX1和EWS/FLI1共享结合位点,并共同调节许多向基因,包括与转移相关的基因,如整体蛋白.
- 在体内,SIX1抑制细胞迁移,侵入和转移.
- 通过SIX1降低整合素的调节对于其抗侵入性作用至关重要.
结论:
- 在尤文肉瘤中,SIX1表现出意想不到的抗转移功能.
- SIX1 与 EWS/FLI1 瘤蛋白协同作用,抑制转移.
- 针对SIX1-EWS/FLI1相互作用可能为ES提供新的治疗策略.
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