DADS通过抑制RORα/β-通过PKCα-依赖酸化在胃癌中抑制RORα/β-通过PKCα-依赖酸化来调节EMT和化疗抵抗
Yizhen Zhang1,2, Juan Li1,3, Huanqing Liu1,4
1Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, 421001, China.
Oncology research
|December 22, 2025
概括
迪亚利二硫化物 (DADS) 通过向PKCα/RORα通路来抑制胃癌 (GC) 的进展,减少入侵和EMT,同时增强5-FU灵敏度. 这表明DADS是GC治疗的潜在RORα激动剂.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 胃癌 (GC) 具有高侵入性,上皮-介质细胞转变 (EMT) 和5-甲 (5-FU) 耐药性,需要新的治疗策略.
- 与视网膜酸相关的孤儿受体α (RORα) 和蛋白激酶Cα (PKCα) 信号通路与癌症进展有关.
- 了解RORα,PKCα和β-catenin之间的相互作用对于开发有效的GC治疗至关重要.
研究的目的:
- 为了研究是否二二硫化物 (DADS) 调节RORα以调节PKCα/RORα介导的RORα/β-catenin通路.
- 确定DADS对GC细胞入侵,EMT和对5-FU敏感性的影响.
- 探索DADS作为胃癌新型治疗剂的潜力.
主要方法:
- 人类GC细胞系 (MGC-803,SGC7901) 用DADS,RORα调节器 (SR1078,T0901317) 和PKCα调节器 (TPA,GO6976) 进行治疗.
- 测试包括扩散的MTT,迁移的scratch测试和入侵的Transwell测试.
- 蛋白质表达,相互作用和局部化分别通过西部斑块,共免疫沉和免疫光分析. 还评估了亡和5-FU敏感性标记物.
主要成果:
- DADS和RORα激动剂SR1078抑制了GC细胞的增殖,迁移和入侵,同时对RORα和E-cadherin进行上调,并对核β-catenin和EMT标记物进行下调.
- DADS治疗上调了RORα,PKCα和它们的相互作用,导致RORα/β-catenin信号的减少,这种效应被PKCα抗剂GO6976抵消.
- DADS通过RORα.通过调节caspase-3,Bcl-2,P-gp和XIAP水平促进了亡并增强了5-FU敏感性.
结论:
- 双二硫化物 (DADS) 抑制了胃癌的进展,并增强了5-FU的敏感性.
- DADS通过PKCα/RORα通路作用,降低RORα/β-catenin信号的调节,类似于SR1078和TPA的影响.
- 作为胃癌治疗的新型RORα激动剂,DADS显示出前景.
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