肿瘤相关巨噬细胞在乳腺癌免疫治疗中的作用。

IF 3.3 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Yan He, Quan Liu, Zhihao Luo, Qian Hu, Li Wang, Zifen Guo
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引用次数: 0

摘要

乳腺癌(BC)是全世界妇女死亡的第二大原因。由于医疗技术的快速发展,免疫治疗已成为治疗BC患者的有效方法。研究取得了重大突破,标志着癌症治疗新时代的开始。其中,免疫检查点抑制剂(ICIs)、癌症疫苗、过继细胞转移等多种癌症免疫疗法效果显著,前景良好。肿瘤微环境(TME)在决定肿瘤免疫治疗的结果中起着至关重要的作用。肿瘤相关巨噬细胞(tumor -associated macrophages, tam)是TME的关键组成部分,其免疫调节作用与肿瘤细胞的免疫逃避密切相关,从而影响恶性进展。tam也显著影响ICIs(如程序性死亡1/程序性死亡配体1 (PD-1/PD-L1)抑制剂)的治疗效果。tam由多个异质亚群组成,包括M1表型巨噬细胞(M1)和M2表型巨噬细胞(M2)。此外,它们主要起类似于m2的作用,并调节多种有害后果,如血管生成、免疫抑制和转移。因此,tam已成为肿瘤治疗发展的一个重点领域。然而,一些肿瘤免疫治疗研究表明,ICIs仅对少数实体癌有效,肿瘤免疫治疗在实体瘤治疗中仍面临相关挑战。本文综述了tam在BC免疫治疗中的作用,总结了它们在BC发展中的作用。介绍了tam的分类和功能,概述了目前肿瘤免疫治疗方法和联合治疗方法,并讨论了tam在免疫肿瘤治疗中的挑战和潜在策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Role of Tumor-Associated Macrophages in Breast Cancer Immunotherapy.

Breast cancer (BC) is the second leading cause of death among women worldwide. Immunotherapy has become an effective treatment for BC patients due to the rapid development of medical technology. Considerable breakthroughs have been made in research, marking the beginning of a new era in cancer treatment. Among them, various cancer immunotherapies such as immune checkpoint inhibitors (ICIs), cancer vaccines, and adoptive cell transfer are effective and have good prospects. The tumor microenvironment (TME) plays a crucial role in determining the outcomes of tumor immunotherapy. Tumor-associated macrophages (TAMs) are a key component of the TME, with an immunomodulatory effect closely related to the immune evasion of tumor cells, thereby affecting malignant progression. TAMs also significantly affect the therapeutic effect of ICIs (such as programmed death 1/programmed death ligand 1 (PD-1/PD-L1) inhibitors). TAMs are composed of multiple heterogeneous subpopulations, including M1 phenotypes macrophages (M1) and M2 phenotypes macrophages (M2). Furthermore, they mainly play an M2-like role and moderate a variety of harmful consequences such as angiogenesis, immunosuppression, and metastasis. Therefore, TAMs have become a key area of focus in the development of tumor therapies. However, several tumor immunotherapy studies demonstrated that ICIs are effective only in a small number of solid cancers, and tumor immunotherapy still faces relevant challenges in the treatment of solid tumors. This review explores the role of TAMs in BC immunotherapy, summarizing their involvement in BC development. It also explains the classification and functions of TAMs, outlines current tumor immunotherapy approaches and combination therapies, and discusses the challenges and potential strategies for TAMs in immuno-oncology treatments.

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