马普酶ERK5调节癌细胞对死亡受体激活剂诱导的外部亡的敏感性
Sergio Espinosa-Gil1,2, Saska Ivanova3,4, Elisenda Alari-Pahissa5
1Departament de Bioquímica i Biologia Molecular and Institut de Neurociències. Facultat de Medicina, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.
Cell death & disease
|November 3, 2023
概括
通过降解TP53INP2.2,MEK5-ERK5通路促进了癌细胞对TRAIL治疗的抵抗力. 抑制ERK5稳定TP53INP2,使癌细胞对TRAIL诱导的亡敏感,并提高治疗疗效.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 细胞信号传递 细胞信号传递
背景情况:
- 与瘤亡因子相关的诱导亡的连接体 (TRAIL) 通过诱导癌细胞的亡,对癌症治疗有希望.
- 癌细胞中的 TRAIL 抗性是一个显著的限制,需要对抗性机制和敏感化策略进行研究.
研究的目的:
- 研究MEK5-ERK5通路在癌细胞抵抗死亡受体结合体诱导的亡中的作用.
- 确定新的策略,使癌细胞对基于 TRAIL 的疗法产生敏感.
主要方法:
- 利用2D和3D细胞培养和转录组分析.
- 研究了ERK5和TP53INP2.2.之间的相互作用.
- 在癌症模型中使用ERK5抑制和遗传删除.
- 使用的子宫内膜癌患者衍生的异种移植器官.
主要成果:
- 确定了MEK5-ERK5通路作为对TRAIL诱导的亡耐药性的关键调节器.
- 发现ERK5可以控制TP53INP2蛋白质稳定,促进其降解.
- 抑制或删除ERK5稳定了TP53INP2,使癌细胞对TRAIL和TRAIL/FasL敏感.
- 在有机体模型中,ERK5抑制在使子宫内膜癌细胞对基于TRAIL的疗法敏感方面表现出有效性.
结论:
- 通过调节TP53INP2降解,MEK5-ERK5通路是癌细胞对TRAIL抗性的关键调解者.
- 准MEK5-ERK5通路是一个有前途的战略,可以克服TRAIL耐药性并提高癌症治疗结果.
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