371-三阴性乳腺癌放疗联合免疫治疗的反应轨迹研究 episode artwork

EPISODE · Jan 7, 2026 · 19 MIN

371-三阴性乳腺癌放疗联合免疫治疗的反应轨迹研究

from 聊聊Sci

这项研究通过单细胞测序与空间蛋白质组学技术,深入探讨了三阴性乳腺癌在接受派姆单抗联合放射治疗后的肿瘤微环境演变。研究团队识别出十二个空间区域,并根据治疗反应将患者分为三类轨迹:具有预存免疫反应的敏感型 (R1)、仅在联合治疗后诱导免疫增强的延迟反应型 (R2),以及始终缺乏免疫浸润的耐药型 (R3)。实验结果表明,放射治疗能显著增强 R2 类患者的抗原呈递能力并促进效应 T 细胞扩张,从而克服单用免疫检查点抑制剂的耐药性。这一发现为优化临床联合用药方案提供了重要依据,有助于筛选更精准的治疗获益人群。该研究强调了肿瘤空间结构在预测免疫疗法成效中的决定性作用,并验证了放疗在重塑冷肿瘤微环境中的潜力。References: Shiao SL, Knott SRV. Single-cell and spatial profiling identify three response trajectories to pembrolizumab and radiation therapy in triple negative breast cancer. Cancer Cell. 2024 Jan 8;42(1):70-84.e8. doi: 10.1016/j.ccell.2023.12.012. PMID: 38194915.前往小宇宙评论区与主播互动

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371-三阴性乳腺癌放疗联合免疫治疗的反应轨迹研究

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