识别小分子抑制剂,以向癌症相关的纤维细胞重编程中的不同信号通路,在瘤-筋膜相互作用下
Shidi Wu1, Rui Fang2, Marion H Rietveld1
1Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands.
The Journal of investigative dermatology
|June 7, 2024
概括
与癌症相关的纤维细胞 (CAFs) 驱动瘤生长. 阻断TGFβ和PI3K通路将CAF逆转为正常纤维细胞,提供了一种新的癌症治疗策略.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 皮肤病学 皮肤病学
背景情况:
- 癌症相关纤维细胞 (CAFs) 是瘤进展的关键参与者,通过信号通路与癌细胞相互作用.
- 纤维细胞亚型,乳头纤维细胞 (PFs) 和网状纤维细胞 (RFs),分化为CAFs,这个过程不太了解.
- 皮肤状细胞癌涉及CAF-瘤细胞交叉.
研究的目的:
- 为了区分PF,RF和CAF.
- 研究小分子抑制剂对CAF特性和重编程的影响.
- 探索针对CAF信号通路的治疗策略.
主要方法:
- 对PF,RF和CAF进行比较分析.
- 用TGFβ,PI3K/AKT/mTOR和NOTCH通路的抑制剂进行治疗.
- 2D和3D细胞培养模型,包括与MET2细胞 (皮肤状细胞癌线) 的共同培养.
主要成果:
- 阻断TGFβ和PI3K通路诱导了网状纤维细胞 (RF) 和CAF中的乳头纤维细胞 (PF) 现型.
- 3D共培养MET2细胞与RF或CAF增强了瘤入侵和细胞因子的产生.
- 抑制TGFβ和PI3K/mTOR通路抑制了瘤入侵和CAF过渡,而NOTCH通路的抑制没有显著的影响.
结论:
- 确定了PF,RF和CAF的生物标志物.
- 针对TGFβ和PI3K通路提供了一个潜在的治疗策略,可以将CAF逆转为正常的纤维细胞表型.
- 针对这些途径的抑制剂显示出基于CAF的癌症治疗的前景.
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