1632-可逆余辉纳米平台助力深部肿瘤光动力免疫治疗 episode artwork

EPISODE · Sep 30, 2026 · 27 MIN

1632-可逆余辉纳米平台助力深部肿瘤光动力免疫治疗

from 聊聊Sci

该研究介绍了一种名为 ETPNs 的新型纳米颗粒平台,专门用于治疗深部肿瘤(如胰腺导管腺癌)。这种纳米颗粒利用 X 射线预激活技术,实现了可逆的 “开-关”式余辉发光,从而在无需持续外部照射的情况下,于体内长时间驱动光动力疗法。ETPNs 能够精准响应肿瘤微环境的酸碱度变化,在酸性环境中释放药物并增强活性氧的产生,显著降低了对健康组织的副作用。通过结合 ATR 抑制剂与光动力治疗,该系统有效诱导了肿瘤细胞的 DNA 损伤,并成功激活 cGAS-STING 免疫通路。这种综合策略不仅能直接杀伤癌细胞,还能重塑免疫微环境,增强抗肿瘤免疫反应。总而言之,这项技术为深部恶性肿瘤的精准治疗与影像导航手术提供了一个高效且安全的创新方案。References:Topatana W, Sun Y, Xie T, et al. X-ray preactivated reversible persistent luminescence enables photodynamic immunotherapy of deep tumors[J]. Nature Communications, 2026, 17(1): 4297.前往小宇宙评论区与主播互动

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1632-可逆余辉纳米平台助力深部肿瘤光动力免疫治疗

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