1114-卵巢癌引流淋巴结中的肿瘤反应性记忆B细胞 episode artwork

EPISODE · Jun 11, 2026 · 16 MIN

1114-卵巢癌引流淋巴结中的肿瘤反应性记忆B细胞

from 聊聊Sci

这份关于高级别浆乳头状卵巢癌(HGSOC)的研究揭示了肿瘤引流淋巴结在免疫反应中的独特性。研究发现,这些淋巴结并非处于活跃的生发中心状态,而是充当了静息肿瘤反应性记忆 B 细胞的储藏库。这些记忆 B 细胞在克隆演化上与肿瘤组织内的 B 细胞紧密相关,表明它们能够迁移至肿瘤内部并分化为分泌抗体的浆细胞。此外,淋巴结内浸润的 DC-SIGN 阳性巨噬细胞被证实具有吞噬生发中心 B 细胞的能力,这解释了淋巴结内免疫反应受抑制的原因。该成果强调了淋巴结作为记忆细胞库对维持肿瘤内免疫持续性的重要价值。References:Nathan N, Paparoditis P, Sarusi-Portuguez A, et al. Tumor-draining lymph nodes in ovarian cancer lack germinal centers but harbor tumor-reactive memory B cells clonally linked to intra-tumoral B cells[J]. Immunity, 2026.前往小宇宙评论区与主播互动

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1114-卵巢癌引流淋巴结中的肿瘤反应性记忆B细胞

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