升高的FBXL6通过K63结合的多基化激活ATAD3A,并通过代谢重编程促进TNBC的恶性进展
Yao Wu1, Jing Pan2, Jingjing Wei3
1Department of Medical Oncology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China.
International journal of biological macromolecules
|September 20, 2025
概括
三阴性乳腺癌 (TNBC) 很难治疗. 我们的研究表明,ATPase家族AAA域含有蛋白3A (ATAD3A) 通过FBXL6稳定TNBC,提供了一个新的治疗点.
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:
- 由于未定义的分子驱动因素,三阴性乳腺癌 (TNBC) 缺乏向治疗.
- 识别新的分子标对于推进TNBC治疗策略至关重要.
研究的目的:
- 研究ATPase家族AAA域含蛋白3A (ATAD3A) 在TNBC进展中的作用.
- 为了阐明在TNBC中ATAD3A的调节机制.
- 评估FBXL6-ATAD3A轴作为TNBC的潜在治疗点.
主要方法:
- 对TNBC中的ATAD3A表达式的TCGA数据库的分析.
- 免疫组织化学 (IHC) 和西部涂抹以评估ATAD3A蛋白水平.
- 在体外和体内实验中,涉及对ATAD3A.的遗传衰竭的实验.
- 调查FBXL6和ATAD3A之间的相互作用及其对ATAD3A无处不在和稳定性的影响.
- 对有氧糖解路径的评估.
主要成果:
- ATAD3A在TNBC组织中显著过度表达,与不良的临床结果相关.
- 在细胞和动物模型中,ATAD3A的遗传枯竭明显抑制了TNBC瘤的生长.
- FBXL6直接针对ATAD3A,促进K63结合的多比基化和ATAD3A的稳定.
- FBXL6-ATAD3A相互作用激活有氧糖解,增强瘤恶性.
- 在临床标本中FBXL6和ATAD3A的同时表达预示着预后不佳.
结论:
- FBXL6-ATAD3A轴是TNBC进展的关键驱动力.
- ATAD3A的FBXL6介导稳定通过有氧糖解促进TNBC恶性病变.
- 针对FBXL6-ATAD3A轴是TNBC的一个有前途的治疗策略.
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