OTUB1通过非正规稳定CCN6来抑制乳腺癌
Ying Zhao1,2, Jing Ruan3, Zhongding Li1
1Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China.
Clinical and translational medicine
|August 23, 2023
概括
在乳腺癌中,OTUB1使CCN6,一种瘤抑制剂脱和稳定. 乳腺癌中OTUB1下调促进瘤进展,通过降低CCN6水平.
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:
- CCN6是一种关键的母细胞蛋白调节乳腺癌瘤发生.
- 控制CCN6蛋白水平的机制,特别是通过无处不在,尚不清楚.
研究的目的:
- 调查二维基素酶 (DUBs) 在调节CCN6蛋白水平中的作用.
- 阐明负责CCN6调节的特定DUB及其在乳腺癌中的机制.
主要方法:
- 选试验以确定针对CCN6.6的DUB.
- 生物化学分析以确定OTUB1-CCN6的相互作用和机制.
- 细胞和体内模型评估OTUB1-CCN6相互作用的功能影响.
- 免疫组织化学和西欧斑块分析人类乳腺癌组织中的OTUB1和CCN6表达.
主要成果:
- 确定OTUB1是一个直接与CCN6.6相互作用的DUB.
- OTUB1以非正规的方式抑制了CCN6的K48相关的泛化和蛋白质体降解.
- 乳腺癌中OTUB1下调导致CCN6水平降低,增强癌细胞迁移,增殖和活力.
- OTUB1表达与乳腺癌进展相反相关.
结论:
- OTUB1是一种新型的二基化酶,可以稳定乳腺癌中瘤抑制剂CCN6.
- 通过恢复CCN6水平,OTUB1作为乳腺癌治疗的潜在治疗标.
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