流体转录学揭示了LIF作为高瘤芽的关键效应因子三阴性乳腺癌
Pimchanok Phankeaw1, Suparada Khanaruksombat1,2, Warapan Numprasit3,4
1Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand.
Scientific reports
|November 25, 2025
概括
在三阴性乳腺癌 (TNBC) 中,高瘤芽 (TB) 与预后不佳相关. 纤维细胞激活蛋白 (FAP) - 阳性癌症相关纤维细胞 (CAF) 过度表达白血病抑制因子 (LIF),促进TNBC进展和免疫治疗耐药性.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 免疫学 免疫学 免疫学
背景情况:
- 瘤芽 (TB) 和纤维细胞激活蛋白 (FAP) 阳性癌症相关纤维细胞 (CAF) 与三阴性乳腺癌 (TNBC) 的患者预后有关.
- 结核病和FAP阳性CAF在TNBC进展中的相互作用尚未得到充分理解.
研究的目的:
- 在高结核病TNBC中研究FAP阳性CAF的转录组特征.
- 确定CAF衍生的因素,有助于TNBC的攻击性.
- 评估白血病抑制因子 (LIF) 作为潜在的治疗点.
主要方法:
- 对于TNBC组织中的结核病和LIF的免疫组织化学 (IHC).
- 采用模板化奥利戈测序的CAFs的整体转录基因分析.
- 功能性测试 (Transwell,流细胞计) 评估LIF对细胞迁移和PD-L1表达的影响.
- 使用R研究室 (DESeq2,Enrichr) 的生物信息分析.
主要成果:
- 在46.5%的TNBC患者中观察到高结核病,与较短的整体存活期 (OS) 相关.
- 高结核病TNBC中升级的途径包括MAPK级联和ERK1/ERK2信号传递.
- 在高结核病TNBC中,FAP阳性CAF显示出高氨酸酸化和STAT信号传递的途径.
- 白血病抑制因子 (LIF) 在CAF中过度表达,促进了TNBC细胞迁移和PD-L1表达.
- 通过EC359抑制LIF减弱了这些效应.
结论:
- 高结核病是TNBC中生存率差的显著预后标志物.
- 通过包括LIF在内的途径,FAP阳性CAF有助于TNBC的攻击性.
- LIF促进TNBC细胞迁移和PD-L1表达,这表明它是一个潜在的治疗点.
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