DLGAP5通过MYC稳定调节糖解来增强膀癌的化学抵抗力
Zhao Deng1,2, Fenfang Zhou3, Mingxing Li1,2
1Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Theranostics
|February 24, 2025
概括
在膀癌中,DLGAP5通过稳定MYC蛋白,增加糖解,促进凝抗药性. 破坏DLGAP5-USP11-MYC通路提供了一种潜在的战略,以克服膀癌 (BLCA) 中的化学抵抗.
科学领域:
- 尿瘤学 尿瘤学
- 癌症化学抵抗的分子机制
背景情况:
- 膀癌 (BLCA) 是一种致命的恶性瘤,复发率高,耐药性高.
- 了解GEM耐药机制对于改善BLCA治疗结果至关重要.
研究的目的:
- 研究DLGAP5在BLCA细胞中促进GEM耐药性的作用.
- 阐明涉及DLGAP5,糖解和MYC蛋白稳定性在GEM耐药性中的机制.
主要方法:
- 使用了BLCA细胞系和临床样本.
- 进行生物化学分析,蛋白相互作用研究和基因表达分析.
- 在小鼠皮下异种移植和自发BLCA模型中评估效应.
主要成果:
- DLGAP5通过通过USP11介导的二维基因化稳定MYC蛋白来增强GEM耐药性.
- DLGAP5促进了USP11-MYC的相互作用,创造了一个积极的反循环,维持MYC的积累.
- 这种循环增加了糖溶性活性,有助于BLCA中的GEM抗性.
结论:
- 在BLCA中,DLGAP5关键调节MYC蛋白稳定性和糖解活性.
- DLGAP5-USP11-MYC轴是GEM电阻的一个关键驱动器.
- 针对这一轴提出了一种新的治疗策略,以克服膀癌中的化疗抵抗.
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