585-胃癌新辅助免疫化疗多组学耐药机制与响应分型研究 episode artwork

EPISODE · Mar 3, 2026 · 22 MIN

585-胃癌新辅助免疫化疗多组学耐药机制与响应分型研究

from 聊聊Sci

这项研究利用NEOSUMMIT-01临床试验的多维组学数据,深入探讨了局部晚期胃癌对围手术期免疫联合化疗的反应机制。研究者通过单细胞测序等技术鉴定了五种独特的肿瘤微环境生态型(EC1-EC5),发现其细胞构成直接影响治疗效果。其中,富含细胞毒性T细胞的EC1型对治疗最为敏感,而涉及脂质代谢和TREM2+巨噬细胞的生态型则表现出免疫耐受。研究特别揭示了APOA1+肿瘤细胞通过分泌脂蛋白诱导巨噬细胞向抑制型转化,从而导致治疗抵抗。此外,LRP1B突变和HLA-B*15:02基因型被确定为预测免疫治疗疗效的关键生物标志物。这些发现为胃癌的精准医疗和克服免疫耐受提供了重要的理论依据与潜在靶点。References: Zhao Q, Huang R, Wang C, et al. Dissecting genetic and immune drivers of heterogeneous responses to neoadjuvant immunochemotherapy in gastric cancer[J]. Cancer Cell, 2026.前往小宇宙评论区与主播互动

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585-胃癌新辅助免疫化疗多组学耐药机制与响应分型研究

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