单细胞映射揭示了结肠直肠癌中以MIF为中心的免疫调节网络
Marios Gkoris1,2, Ilias Georgakopoulos-Soares1,3, Apostolos Zaravinos1,2
1Department of Life Sciences, School of Sciences, European University Cyprus, Nicosia 1516, Cyprus.
International journal of molecular sciences
|February 13, 2026
概括
结肠直肠癌的进展涉及复杂的瘤微环境相互作用. 通过MIF-CD74信号传递的巨细胞-上皮细胞通信是关键,提供潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 计算生物学 计算生物学
背景情况:
- 瘤微环境 (TME) 极大地影响结直肠癌 (CRC) 的进展,涉及复杂的细胞交叉通话.
- 在单细胞分辨率下了解这些相互作用对于破译免疫抑制和瘤进化至关重要.
研究的目的:
- 在CRC TME中以单细胞分辨率映射细胞间通信网络.
- 确定关键的信号通路和细胞参与者驱动CRC进展和免疫逃避.
主要方法:
- 对结直肠癌单细胞RNA测序 (scRNA-seq) 数据集的分析.
- 使用Seurat进行数据集成和CellChat进行体受体相互作用推断.
- 进行了差异性基因表达和通路丰富分析.
主要成果:
- 在TME中确定了显著的细胞异质性,包括特定的上皮细胞 (CMS2/CMS3),巨细胞 (SPP1+),T细胞和B细胞 (CXCR4+) 子集.
- 揭示了以MIF为中心的信号传导 (MIF-CD74-CXCR4,MIF-CD74-CD44) 作为瘤细胞和免疫细胞之间的主导轴.
- CMS3上皮细胞通过MIF和APP-CD74通路与巨细胞和细胞毒性淋巴细胞有着强烈的联系.
- 在瘤组织中证实MIF,CD74,CD44和SPP1表达的升高.
结论:
- 在CRC TME中提供了细胞间通信的高分辨率地图.
- 识别了MIF-CD74信号作为CRC中的中央免疫调节枢纽.
- 突出了MIF-CD74相关途径在结直肠癌中治疗向和生物标志物发展的潜力.
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