高级搜索

巨噬细胞铁死亡在肝癌免疫逃逸中的作用及中医药干预研究进展

The Role of Macrophage Ferroptosis in Immune Evasion of Liver Cancer and Research Progress on Traditional Chinese Medicine Intervention

  • 摘要: 肝细胞癌(HCC)的高度免疫抑制性肿瘤微环境(TIME)是免疫治疗效果受限的关键。肿瘤相关巨噬细胞(TAMs)向促肿瘤M2型极化是免疫逃逸的主要驱动机制。铁死亡作为一种铁依赖性程序性细胞死亡,与肝脏铁代谢及免疫调控密切相关,为肿瘤干预提供了新靶点。本文系统阐述了TAMs铁死亡在HCC免疫逃逸中的作用机制,并探讨了中医药“扶正祛邪”理念指导下的“清热解毒、益气活血”法通过调控TAMs铁死亡逆转免疫抑制的潜力。精准诱导M2样TAMs铁死亡可选择性清除免疫抑制细胞,逆转M1/M2比例失衡,增强抗肿瘤免疫。中医药通过多靶点协同,双向调控铁代谢和TAMs极化,展现系统性重塑TIME的优势。靶向TAMs铁死亡是HCC免疫治疗的创新策略,结合中医药有望构建中西医结合新方案,其临床转化潜力有待多组学技术与临床研究进一步验证。
     

     

    Abstract: Hepatocellular carcinoma (HCC) develops within a profoundly immunosuppressive tumor immune microenvironment (TIME), which limits the efficacy of immunotherapy. Polarization of tumor-associated macrophages (TAMs) toward a protumorigenic M2 phenotype is a major driver of immune escape. Ferroptosis—an iron-dependent, regulated cell death program—intersects with hepatic iron metabolism and immune regulation and thus offers promising points of therapeutic intervention. Here, we systematically delineate how TAM ferroptosis contributes to immune evasion in HCC and explore, under the Traditional Chinese Medicine (TCM) principle of “fortifying healthy qi and eliminating pathogens, ” the potential of heat-clearing and detoxifying, qi-tonifying, and blood-invigorating strategies to reverse immunosuppression via modulation of TAM ferroptosis. Precisely inducing ferroptosis in M2-like TAMs may selectively deplete immunosuppressive cells, rebalance the M1/M2 ratio, and enhance antitumor immunity. Leveraging TCM’s multi-target, synergistic actions enables bidirectional regulation of iron metabolism and TAM polarization, highlighting a systems-level capacity to remodel the TIME. Targeting TAM ferroptosis represents an innovative strategy for HCC immunotherapy; integrating TCM-based approaches may inform new combined regimens. The translational potential of this paradigm warrants validation through multi-omics profiling and well-designed clinical studies.

     

/

返回文章
返回