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癌症免疫疗法的ex vivo扩大自然杀手细胞的表征

Jin Young Min¹, Tae Kyung Ko², Hye Min Kim^1,3

¹Biopharmaceutical Research Center, Ochang Institute of Biological and Environmental Science, Korea Basic Science Institute (KBSI), Cheongju, South Korea.

Immunology and cell biology

|June 18, 2025

概括

自然杀手 (NK) 细胞被扩展为癌症治疗的活体细胞. 扩大的NK细胞表现出强大的抗癌作用和抗体依赖细胞细胞毒性 (ADCC) 对血液和固体瘤.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
在瘤学瘤学.

背景情况:

自然杀手 (NK) 细胞对于天生的免疫力和癌症监测至关重要.
NK细胞的ex vivo扩张对采用免疫疗法具有前景.
在实现稳定和强大的NK细胞扩张以临床用途方面仍然存在挑战.

研究的目的:

建立和描述一种ex vivo共培系统,用于从健康的捐赠者和乳腺癌患者中扩展功能性NK细胞.
为了研究扩展NK细胞的表面标记物表达和激活配置文件.
为了评估扩展的NK细胞在体外抗癌疗效和抗体依赖细胞毒性 (ADCC) 对血液和固体瘤细胞系.

主要方法:

一种用于ex vivoNK细胞扩张的共同培养系统.
流细胞计用于表面标记物分析.
细胞因子阵列和维度减小用于激活标记物概况.
乳酸脱酶 (LDH) 对K562细胞的细胞毒性活性进行测试.
使用SK-BR-3细胞与向HER2的单克隆抗体 (trastuzumab,pertuzumab) 的ADCC测定.

主要成果:

从健康捐赠者和癌症患者的外周血液单核细胞中实现了NK细胞的稳定扩张.
扩张的NK细胞对K562血液癌细胞系表现出强烈的细胞毒性活性.
在Trastuzumab和Pertuzumab的存在下,NK细胞对HER2阳性固体瘤细胞 (SK-BR-3) 显示出显著的ADCC.
分析显示,随着时间的推移,扩展的NK细胞上有明显的细胞因子配置和激活标志物表达.

结论:

活体扩展的NK细胞是一个可行的和强大的免疫治疗工具,用于血液和固体瘤.
已建立的共同培养系统支持产生具有强大的抗癌和ADCC能力的功能性NK细胞.
扩展的NK细胞代表了瘤学中一个有前途的多功能治疗策略.

关键词:

在HER2中,HER2是HER2.抗体依赖的细胞细胞毒性捐赠者捐赠者捐赠者提供者自然杀手细胞是自然杀手细胞.周围血液中的单核细胞.固体癌症是一种固体癌症.

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