一个Multi-PTM omics图谱揭示了结直肠癌中的新老化调节剂
Yujie Zhang1, Wei Zhang2,3, Tianyuan Li1
1School of Medicine, Anhui University of Science & Technology, Huainan, 232001, China.
BMC cancer
|December 11, 2025
概括
衰老显著影响着结肠直肠癌 (CRC) 的进展. 这项研究揭示了老化CRC中广泛的翻译后修饰 (PTM) 变化,确定了未来治疗点的关键蛋白质和途径.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 衰老研究研究 衰老研究
背景情况:
- 衰老是结肠直肠癌 (CRC) 发展的一个主要因素.
- 在与衰老相关的CRC中,翻译后修改 (PTM) 的作用尚不清楚.
- 酸化,无化和恶化对CRC衰老途径的综合作用尚未被探索.
研究的目的:
- 调查结直肠癌中与衰老相关的PTM的情况.
- 描述多个PTM对CRC老化途径的协调影响.
- 确定新的监管网络和潜在的治疗点.
主要方法:
- 建立了CRC特定的多态学框架,对酸化,化和无处不在的化进行了分析.
- 使用功能丰富和蛋白质-蛋白质相互作用 (PPI) 网络分析分析了差异修饰的蛋白质.
- 集成的路径数据库 (GO,KEGG) 和文献证据,以重建监管轴.
主要成果:
- 在CRC中发现了与衰老相关的PTMs的广泛失调,包括162个全方位化,64个化和68个化位.
- 确定LMNB1是一种多PTM蛋白,参与衰老期间的核结构控制.
- 突出了CDK1,SOD2和MAPK1作为CRC老化中的潜在的PTM监管枢纽节点.
- 开发了一个信号模型,显示了PTM介导的EGFR-RAS抑制和CRC衰老中的p38/p53通路的激活.
结论:
- 基于多个PTM,在CRC中提出了第一个老龄化监管的综合网络地图.
- 确定LMNB1作为老化-CRC轴的关键监管目标.
- 为开发生物标志物和针对CRC中衰老-癌症轴的治疗提供了基础.
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