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结直肠癌肺转移中的免疫抑制性瘤微环境:转移切除术后复发的影响

Minsuk Kwon¹, Min-Kyue Shin^1,2, Minae An^1,3

¹Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

Cancer research and treatment

|December 19, 2025

概括

结直肠癌肺转移的复发与免疫抑制性瘤微环境有关. 针对瘤相关的巨细胞和T细胞的策略可能会改善手术后患者的治疗结果.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
基因组学就是基因组学.

背景情况:

大肠直肠癌 (CRC) 肺转移在手术切除后经常复发.
需要改进的治疗策略来解决高复发率的问题.

研究的目的:

描述CRC肺转移的瘤微环境 (TME).
在TME中确定与切割后复发相关的因素.

主要方法:

对15名接受肺转移切除术的CRC患者的分析.
使用多重免疫组织化学 (IHC),整个外体序列,转录组概况和单细胞RNA序列 (scRNA-seq).
与临床复发相关的免疫细胞群和基因表达.

主要成果:

经常发现TP53,KRAS和APC突变.
瘤表现出免疫功能低下和纤维状的特征,具有下调的T和NK细胞特征.
丰富SPP1+瘤相关巨细胞 (TAMs) 与抑制的T细胞活性,早期复发和低生存率相关.

结论:

免疫抑制的TME特征,包括SPP1+TAM和耗尽的效应细胞T/NK细胞,驱动复发.
向TAM和T细胞为改善CRC肺转移患者的治疗结果提供了潜在的治疗策略.

关键词:

结直肠瘤是什么意思肺部转移肺部转移肺部转移突变突变是一种突变.复发情况复发情况这是T-淋巴细胞.瘤微环境是一个微环境.与瘤相关的巨细胞.

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