1468-成熟树突状细胞调控肿瘤三级淋巴结构生成与维持

这些研究文章深入探讨了1型常规树突状细胞 (cDC1) 在癌症中如何调控三级淋巴结构 (TLS) 的形成与维持。研究人员通过小鼠模型和人类多种癌症样本发现，成熟的cDC1首先在肿瘤引流淋巴结中诱导T细胞活化，从而启动TLS的初步构建。随着病情进展，这些成熟的树突状细胞会聚集在肿瘤内部特定的基质枢纽中，直接在局部维持TLS的结构完整性。通过MHC-I和MHC-II分子的共同抗原呈递，cDC1能够同时与CD4+和CD8+ T细胞相互作用，进而促进生发中心的形成和肿瘤特异性抗体的产生。由于TLS的密度与患者对免疫检查点阻断疗法的反应及整体存活率呈正相关，该发现为开发针对树突状细胞的新型抗癌策略提供了重要依据。这些证据共同表明，cDC1是协调肿瘤免疫微环境中这一关键空间结构的核心编排者。References:Mattiuz R, Boumelha J, Aerakis E, et al. Dendritic cells control tertiary lymphoid structure development and maintenance in cancer[J]. Science, 2026, 393(6808): eady1678.前往小宇宙评论区与主播互动

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1468-成熟树突状细胞调控肿瘤三级淋巴结构生成与维持

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