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黑色素瘤衍生的细胞因子和细胞外囊泡与巨细胞免疫抑制相互作用

Shankar Suman¹, Wendy K Nevala¹, Alexey A Leontovich²

¹Department of Oncology, Mayo Clinic, Rochester, MN, United States.

Frontiers in molecular biosciences

|February 6, 2025

概括

黑色素瘤细胞外囊泡 (EVs) 通过重编程巨细胞到免疫抑制状态来促进瘤生长. 这些EV诱导Th2细胞因子,培养支持黑色素瘤转移的环境.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
细胞生物学细胞生物学

背景情况:

细胞因子是瘤微环境 (TME) 中细胞通信的关键媒介.
与瘤相关的巨细胞 (TAMs) 调节免疫抑制性细胞因子,促进瘤转移.
Th2细胞因子参与抑制抗癌免疫力,但它们与瘤分泌的细胞外囊泡 (EVs) 的联系尚不清楚.

研究的目的:

为了研究促进瘤的巨细胞和黑色素瘤衍生的EVs之间的关系.
了解黑色素瘤EVs如何影响巨细胞中的细胞因子概况.
探索EVs在产生免疫抑制TME中的作用.

主要方法:

分析黑色素瘤衍生的EV中的细胞因子概况及其对原始巨细胞的影响.
转移性黑色素瘤患者的细胞因子水平与健康对照者的比较.
研究EVs对巨细胞两极分化和功能的影响.

主要成果:

黑色素瘤衍生的EVs在原始巨细胞中高调Th2细胞因子表达.
这些EV促进巨细胞中支持瘤的功能.
与对照组相比,在转移性黑色素瘤患者中观察到高水平的特定细胞因子.

结论:

黑色素瘤EVs诱导TAMs,产生一种免疫抑制的TME,有助于转移.
EV介导的细胞因子调节发生在局部和全身水平.
这项研究突出了黑色素瘤进展中免疫逃避的新机制.

关键词:

细胞因子细胞因子细胞外囊泡中的细胞外囊泡.免疫抑制是一种免疫抑制.黑色素瘤是一种黑色素瘤.瘤微环境是一个微环境.促进瘤的巨细胞.

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