EPISODE · Aug 25, 2026 · 20 MIN
1486-CD4+ T细胞通过血管损伤抑制肿瘤生长
from 聊聊Sci
这项研究揭示了CD4+ T细胞通过一种非直接杀伤的新机制来抑制癌症生长。研究发现，这些免疫细胞在肿瘤血管附近识别抗原，并利用白细胞介素-3 (IL-3) 诱导巨噬细胞聚集并释放肿瘤坏死因子 (TNF)。不同于以往直接攻击癌细胞的策略，这种机制专门针对肿瘤间质，通过破坏内源性血管结构导致组织缺氧和营养枯竭。实验证明，即使在癌细胞不直接呈现抗原的情况下，这种由血管损伤引发的广泛细胞凋亡依然能有效诱导肿瘤退缩。这一发现为开发不依赖于直接识别癌细胞的新型癌症免疫疗法提供了重要理论支撑。References:Lian Q, Nie J, Singh J, et al. CD4+ T cells impair tumor growth through IL-3 and TNF-dependent vascular damage[J]. Science, 2026, 392(6804): eads7910.前往小宇宙评论区与主播互动
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1486-CD4+ T细胞通过血管损伤抑制肿瘤生长
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