579-溶瘤病毒诱导胶质母细胞瘤持久T细胞免疫的空间图谱 episode artwork

EPISODE · Mar 3, 2026 · 13 MIN

579-溶瘤病毒诱导胶质母细胞瘤持久T细胞免疫的空间图谱

from 聊聊Sci

这项研究探讨了溶瘤疱疹病毒治疗复发性胶质母细胞瘤的免疫机制。研究人员通过分析临床试验样本发现,单次病毒注射能诱导T细胞深入且持久地渗透到肿瘤内部,这种强烈的免疫激活状态可维持长达两年。研究利用空间转录组学技术证明,治疗扩增了预先存在的肿瘤浸润T细胞克隆,且T细胞与癌细胞之间的近距离接触与患者生存期的延长直接相关。相比之下,病毒残余仅局限于坏死区域,说明长期的抗肿瘤作用主要由T细胞介导的细胞毒性驱动。此外,研究还识别出缺氧间充质区域是导致免疫逃逸和治疗耐药的关键空间因素。这些发现为通过溶瘤病毒增强免疫反应以攻克这种难治性脑肿瘤提供了重要科学依据。References: Meylan M, Tian Y, Wu L, et al. Persistent T cell activation and cytotoxicity against glioblastoma following single oncolytic virus treatment in a clinical trial[J]. Cell, 2026.前往小宇宙评论区与主播互动

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579-溶瘤病毒诱导胶质母细胞瘤持久T细胞免疫的空间图谱

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