通过LIN28B介导的PI3K/AKT通路激活在结直肠癌模型中促进转移
Alice E Shin1, Kensuke Sugiura1, Secunda W Kariuki1
1Division of Digestive and Liver Diseases, Department of Medicine, and.
The Journal of clinical investigation
|January 14, 2025
概括
在结直肠癌 (CRC) 中过度表达的LIN28B通过PI3K/AKT通路驱动肝转移. 用像alpelisib这样的药物准这种途径为转移性CRC提供了治疗潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症转移研究 癌症转移研究
背景情况:
- 结肠直肠癌 (CRC) 转移是癌症死亡的主要原因.
- 30%的CRC中LIN28B过度表达与转移有关,但机制尚不清楚.
- 对于PI3K路径突变的现有小鼠模型在瘤进展和转移方面存在局限性.
研究的目的:
- 为了阐明LIN28B在结直肠癌转移中的作用.
- 为了研究PI3K/AKT通路在LIN28B驱动的转移中的参与.
- 评估转移性结直肠癌的向治疗方法.
主要方法:
- 基因改造的CRC细胞系和过度表达LIN28B或活性Pik3ca的小鼠模型.
- 细胞迁移和侵入的体外试验;在小鼠体内转移的研究.
- 使用FDA批准的药物 (alpelisib,capivasertib) 和LY2584702在细胞系,有机体和患者衍生的有机体中进行垂直PI3K/AKT通路抑制的全面分析.
- 对患者样本进行组织微阵列分析.
主要成果:
- 在小鼠模型中,LIN28B过度表达增强了PI3K/AKT通路激活和肝转移.
- 使用alpelisib抑制PI3Kα可以减少CRC细胞的迁移,入侵和转移.
- LIN28B和PI3K/AKT通路的激活与患者组织中的CRC进展呈正相关性.
- 在临床前模型中,PI3K/AKT通路的垂直抑制显示出有前途.
结论:
- 通过PI3K/AKT通路,LIN28B对结直肠癌转移进行了关键调解.
- 针对PI3K/AKT通路的制是转移性CRC的可行的治疗策略.
- 来自患者的有机体是转移性CRC的精准医学中宝贵的工具.
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