由保存的激活树突细胞定义的空间免疫枢纽被免疫疗法重塑
bioRxiv : the preprint server for biology
|February 23, 2026
概括
树突细胞 (DCs) 在瘤中的物种之间显示保存的激活状态. 它们在免疫疗法期间的空间组织和重塑揭示了不同的利基,为抗瘤免疫提供了洞察力.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 系统生物学 系统生物学
背景情况:
- 树突细胞 (DCs) 对于抗瘤免疫非常重要.
- 它们在瘤微环境 (TME) 中的表型多样性和空间动态尚未完全理解.
研究的目的:
- 创建瘤透DCs的综合图谱.
- 描述保存的DC状态及其空间组织.
- 为了研究免疫疗法期间的DC重塑.
主要方法:
- 从小鼠和人类癌症研究中协调的单细胞转录组数据.
- 单细胞分辨率多重组织成像.
- 空间转录组学和蛋白质组成像.
主要成果:
- 在各个物种中确定了保存的DC转录状态 (cDC1,cDC2,CCR7+,ISG+DCs).
- 在人类TME中发现了CCR7+和ISG+DC的独特空间.
- 在免疫疗法期间,尽管DC转录状态稳定,但DC-T细胞的分离重塑已被证明.
结论:
- 划分了保存的DC激活状态及其在瘤中的空间组织.
- 捕获了DC的依赖治疗的重建.
- 提供了一个研究癌症治疗中DC免疫程序重塑的框架.
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