在结直肠癌中,RAB18被上调,并促进瘤的进展
Hao Cheng1, Suzeng Wang1, Chunyu Yang2
1Department of Gastrointestinal Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China; Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China; Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China.
Pathology, research and practice
|December 30, 2025
概括
拉斯相关的蛋白质Rab-18 (RAB18) 促进结直肠癌 (CRC) 的生长和转移. 沉默RAB18抑制CRC的进展和瘤发生,表明其作为治疗点的潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 与Ras相关的蛋白质Rab-18 (RAB18) 参与细胞过程,如自和脂质代谢.
- 新兴证据将RAB18与瘤发生联系起来,但其在结直肠癌 (CRC) 中的具体作用仍未确定.
研究的目的:
- 研究RAB18在结直肠癌中的表达和功能.
- 确定RAB18作为预后生物标志物和CRC治疗标的潜力.
主要方法:
- 在CRC组织和配对的正常组织中分析RAB18表达.
- 试验室研究涉及CRC细胞中的RAB18敲除,以评估增殖,细胞循环,迁移和入侵.
- 在活体老鼠异种移植模型中,评估RAB18沉默对CRC瘤发生的影响.
- RNA测序和途径丰富分析以阐明分子机制.
- 下游中介机构的验证.
主要成果:
- 在CRC组织中,RAB18表达显著升高,与预后不佳相关.
- RAB18敲击抑制了CRC细胞的增殖,细胞周期的进展,迁移和入侵.
- 沉默RAB18减少了小鼠异种移植模型中的瘤生长.
- 机理学研究显示,RAB18敲击激活了p53通路,并降低了E2F目标和G2M检查点基因的调节.
- 斯特拉提芬 (SFN) 和小鼠双分钟2 (MDM2) 被确定为潜在的下游介质.
结论:
- RAB18在结直肠癌 (CRC) 中表现出致癌作用.
- RAB18表达水平可以作为CRC的预后生物标志物.
- 向RAB18为CRC治疗提供了一个潜在的治疗策略.
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