1312-LEF1与生态位因子决定慢性病中T细胞干性 episode artwork

EPISODE · Jul 21, 2026 · 27 MIN

1312-LEF1与生态位因子决定慢性病中T细胞干性

from 聊聊Sci

这份研究揭示了在自身免疫和慢性感染等抗原持续存在的环境中,LEF1 是决定 CD8 T 细胞干性的核心调控因子。研究发现,传统的 TCF1hi 细胞群具有异质性,而只有表达 LEF1 的极小亚群才是真正的自我更新干细胞库 (TSC)。这些 TSC 通过一种独特的表观遗传编码程序运作,并遵循 TSC → TPRO(祖细胞)→ TDIFF(分化细胞) 的分化路径来维持免疫反应。该研究强调,TSC 借鉴了胚胎和成体干细胞的分子模块,其状态受 WNT 和 Notch 等生态位信号的严密调控。通过靶向这些信号通路或整合素,可以有效破坏 T 细胞的分化轨迹,从而为治疗慢性疾病和防止组织损伤提供了新方向。References:Miakicheva S, Hawley K M, Zumbo P, et al. LEF1 and niche factors determine T cell stemness across chronic diseases[J]. Cell, 2026.前往小宇宙评论区与主播互动

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1312-LEF1与生态位因子决定慢性病中T细胞干性

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