682-SMARCA5调控胰腺癌发生与再生区分 episode artwork

EPISODE · Mar 23, 2026 · 26 MIN

682-SMARCA5调控胰腺癌发生与再生区分

from 聊聊Sci

这项研究揭示了染色质重塑因子 SMARCA5 在区分胰腺癌变与组织再生中的核心作用。研究发现,SMARCA5 特异性地维持了由突变 KRAS 驱动的恶性染色质开放状态,而对正常的组织修复过程没有影响。通过剔除 SMARCA5,研究人员能够成功阻断小鼠体内胰腺癌的发生,并使受损组织回归正常的再生路径。这种特异性调控是由转录因子 RUNX1 在时间与空间上的精准控制实现的,该因子仅在持续的 MAPK 信号诱导下积累并招募 SMARCA5 到恶性基因位点。此外,针对包含 SMARCA5 的蛋白复合物进行抑制,可特异性打击患者来源的肿瘤类器官,而不伤害健康组织。这一发现为开发既能精准抑制胰腺癌、又不干扰器官自我修复能力的高选择性疗法提供了重要依据。References: Han J, Lu X, Guo M, et al. Spatiotemporal control of SMARCA5 by a MAPK–RUNX1 axis distinguishes mutant KRAS-driven pancreatic malignancy from tissue regeneration[J]. Nature Cancer, 2026, 7(1): 43-59.前往小宇宙评论区与主播互动

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682-SMARCA5调控胰腺癌发生与再生区分

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