1418-双氢青蒿素抑制KRAS突变增强结直肠癌肝转移联合治疗方案 episode artwork

EPISODE · Aug 11, 2026 · 20 MIN

1418-双氢青蒿素抑制KRAS突变增强结直肠癌肝转移联合治疗方案

from 聊聊Sci

这项研究揭示了 KRAS 基因突变是导致结直肠癌肝转移患者对瑞格非尼联合 PD-1 抗体治疗产生耐药性的关键因素。研究人员通过筛选发现,抗疟药物双氢青蒿素 (DHA) 能够通过自噬-溶酶体途径特异性诱导突变型 KRAS 蛋白降解。在临床前模型中,双氢青蒿素显著增强了现有联合疗法的抗肿瘤效果。这种协同作用主要源于 DHA 能够恢复被突变基因抑制的干扰素响应,从而优化肿瘤免疫微环境。此外,DHA 还能通过抑制由瑞格非尼诱导的 ERBB 信号激活来克服获得性耐药。总之,该研究为治疗 KRAS 突变驱动的恶性肿瘤提供了一种具有临床转化潜力的联合用药新方案。References:Huang N, Wang L, Deng H, et al. Dihydroartemisinin inhibits mutant KRAS to potentiate regorafenib plus anti-PD-1 in KRAS-mutant colorectal cancer liver metastases[J]. Cell Death & Disease, 2026.前往小宇宙评论区与主播互动

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1418-双氢青蒿素抑制KRAS突变增强结直肠癌肝转移联合治疗方案

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