肿瘤来源的细胞外囊泡调节固有免疫反应,影响肿瘤进展。

Tumor-derived extracellular vesicles modulate innate immune responses to affect tumor progression.

机构信息

Scientific Research Centre, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China.

School of Medicine, Sun Yat-sen University, Shenzhen, China.

出版信息

Front Immunol. 2022 Nov 2;13:1045624. doi: 10.3389/fimmu.2022.1045624. eCollection 2022.

Abstract

Immune cells are capable of influencing tumor progression in the tumor microenvironment (TME). Meanwhile, one mechanism by which tumor modulate immune cells function is through extracellular vesicles (EVs), which are cell-derived extracellular membrane vesicles. EVs can act as mediators of intercellular communication and can deliver nucleic acids, proteins, lipids, and other signaling molecules between cells. In recent years, studies have found that EVs play a crucial role in the communication between tumor cells and immune cells. Innate immunity is the first-line response of the immune system against tumor progression. Therefore, tumor cell-derived EVs (TDEVs) which modulate the functional change of innate immune cells serve important functions in the context of tumor progression. Emerging evidence has shown that TDEVs dually enhance or suppress innate immunity through various pathways. This review aims to summarize the influence of TDEVs on macrophages, dendritic cells, neutrophils, and natural killer cells. We also summarize their further effects on the progression of tumors, which may provide new ideas for developing novel tumor therapies targeting EVs.

摘要

免疫细胞能够影响肿瘤微环境(TME)中的肿瘤进展。同时,肿瘤调节免疫细胞功能的一种机制是通过细胞外囊泡(EVs),即细胞来源的细胞外膜囊泡。EVs 可以作为细胞间通讯的介质,在细胞间传递核酸、蛋白质、脂质和其他信号分子。近年来的研究发现,EVs 在肿瘤细胞与免疫细胞之间的通讯中发挥着关键作用。先天免疫是免疫系统对肿瘤进展的第一道防线。因此,肿瘤细胞衍生的 EV(TDEVs)调节先天免疫细胞的功能变化,在肿瘤进展的背景下具有重要作用。新出现的证据表明,TDEVs 通过多种途径双重增强或抑制先天免疫。本综述旨在总结 TDEVs 对巨噬细胞、树突状细胞、中性粒细胞和自然杀伤细胞的影响。我们还总结了它们对肿瘤进展的进一步影响,这可能为开发针对 EVs 的新型肿瘤治疗方法提供新的思路。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a53/9667034/c4add48fd526/fimmu-13-1045624-g001.jpg

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