1633-淋巴结中结合PD-1抗体的Tpex细胞增强抗肿瘤免疫研究 episode artwork

EPISODE · Oct 1, 2026 · 20 MIN

1633-淋巴结中结合PD-1抗体的Tpex细胞增强抗肿瘤免疫研究

from 聊聊Sci

这份研究探讨了胃肠道癌症患者在接受免疫检查点抑制剂 (ICI) 治疗后,淋巴结中祖细胞耗竭型 T 细胞 (Tpex) 的动态变化。研究人员通过单细胞测序和一种新开发的 IgG4 抗体检测技术,成功识别了在患者体内与药物结合的 T 细胞。实验发现,富集在近端淋巴结中的 Tpex 细胞在治疗后表现出极强的增殖能力,并能向肿瘤内部迁移。这些细胞进入肿瘤后会分化为耗竭型 T 细胞 (Tex),从而增强抗肿瘤免疫效果。该成果揭示了淋巴结作为免疫细胞储备库在免疫治疗中的关键作用,为提升胃肠道癌症的疗效提供了重要的理论依据。References:Nose Y, Yasumizu Y, Saito T, et al. PD-1 antibody-bound progenitor-exhausted CD8+ T cells in lymph nodes boost PD-1-blockade anti-tumor immunity in gastrointestinal cancer[J]. Nature Communications, 2026.前往小宇宙评论区与主播互动

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1633-淋巴结中结合PD-1抗体的Tpex细胞增强抗肿瘤免疫研究

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