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组织寄存的FOLR2⁺巨与人类乳腺癌中的CD8⁺T细胞透有关

Rodrigo Nalio Ramos¹, Yoann Missolo-Koussou¹, Yohan Gerber-Ferder¹

¹PSL University, Institut Curie Research Center, INSERM U932 & SiRIC, Translational Immunotherapy Team, 75005 Paris, France.

|March 24, 2022

概括

研究人员在乳腺瘤中发现了一种特定类型的巨细胞FOLR2+. 这些巨细胞增强抗瘤免疫力,与更好的患者存活率相关,提供新的治疗点.

科学领域:

免疫学
癌症学
细胞生物学

背景情况:

巨细胞透在固体瘤中很常见,通常与预后不佳和治疗耐药性有关.
与瘤相关的巨细胞 (TAMs) 呈现出显著的异质性,不同的子集可能在癌症中发挥不同的作用.
了解TAM子集对于开发向癌症疗法至关重要.

研究的目的:

识别和表征与瘤相关的大细胞的不同子集.
研究瘤微环境中已识别的巨子组的功能作用.
探索特定的TAM子组与乳腺癌患者的结果之间的相关性.

主要方法:

在健康的乳腺和原发性乳腺瘤中识别巨细胞群.
在瘤层中定位和表征FOLR2+巨细胞.
评估FOLR2+巨与CD8+T细胞的相互作用及其活体原始化能力.

主要成果:

在健康的乳腺组织和乳腺瘤中发现了一组独立的FOLR2+组织寄存巨细胞群.
FOLR2+巨细胞位于周围血管区域,与CD8+T细胞相互作用.
这些巨细胞表现出效应性CD8+T细胞的原始化,它们的密度与患者的存活率有积极的相关性.

结论:

在增强抗瘤免疫力方面具有潜在作用的FOLR2+巨体代表着一个独特的TAM子集.
这些发现突显了TAM异质性对癌症进展和免疫反应的重要性.
这项研究为开发针对特定TAM子组的向免疫疗法提供了基础.

关键词:

CD8 ((+) T淋巴细胞时间表其他:乳腺癌单细胞RNA测序组织寄存的巨细胞

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