EPISODE · Mar 23, 2026 · 26 MIN
685-类脑器官模拟弥漫性内源性桥脑胶质瘤及CAR-T疗法研究
from 聊聊Sci
这项研究开发了一种基于FGF4诱导的人脑桥类器官模型，用于精准模拟具有H3.3K27M突变的弥漫性中线胶质瘤（DMG）。研究证实，特定的脑桥胶质细胞发育环境是肿瘤发生的关键，该模型成功复制了患者肿瘤的浸润性生长与转录组异质性。通过在模型中测试GD2 CAR T细胞疗法，科学家发现了治疗过程中的功能性衰竭现象，并识别出一群高效但寿命较短的效应细胞。此外，研究通过引入小胶质细胞构建了更复杂的肿瘤微环境，揭示了免疫抑制如何削弱疗效并诱发毒性。这一创新的实验平台为理解这种致命儿科癌症的病理机制以及优化免疫治疗方案提供了重要工具。References: Bessler N, Wezenaar A K L, Ariese H C R, et al. De novo H3. 3K27M-altered Diffuse Midline Glioma in human brainstem organoids to dissect GD2 CAR T cell function[J]. Nature cancer, 2026: 1-18.前往小宇宙评论区与主播互动
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685-类脑器官模拟弥漫性内源性桥脑胶质瘤及CAR-T疗法研究
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