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细胞因子查识别了TNF,有可能增强儿科肉瘤的免疫性

Hendrik Gassmann^1,2, Melanie Thiede¹, Jennifer Weiß¹

¹Department of Pediatrics, Children's Cancer Research Center, Kinderklinik München Schwabing, TUM School of Medicine, Technical University of Munich, Munich, Germany.

Frontiers in immunology

|December 26, 2024

概括

瘤亡因子 (TNF) 和IL-1β增加了儿科肉瘤细胞上的免疫标记物. 这提高了T细胞治疗对表达HLA-A2.2的特定Ewing肉瘤瘤的有效性.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
生物技术是生物技术.

背景情况:

儿科类肉瘤 (骨肉瘤,尤文肉瘤,狂肌肉瘤) 具有较低的突变负担和MHC-I表达,阻碍了T细胞疗法.
以前的研究表明,单细胞成熟媒介使尤宁肉瘤对T细胞介导的溶解敏感.

研究的目的:

评估细胞因子在儿科肉瘤细胞系上调高免疫原标记物的能力.
确定TNF预处理是否增强了对这些细胞的CD8+T细胞细胞毒性.

主要方法:

使用流细胞计量来评估细胞表面标记物表达.
在TNF预处理后,xCELLigence,SRB和ELISpot测试评估了T细胞细胞毒性.
测试的细胞因子包括TNF,IL-1β,IL-4,GM-CSF,IL-6和PGE2.

主要成果:

在儿科肉瘤细胞系上,TNF和IL-1β提高了MHC I类,ICAM-1,CD83和PD-L1的调节.
其他测试的细胞因子没有诱导这些效应.
TNF增强了抗原特异性T细胞对HLA-A2+欧文肉瘤细胞的特异性溶解,依赖于MHC-I和ICAM-1.

结论:

诱导TNF或TNF的疗法可以在儿科肉瘤细胞上调节关键表面分子.
这种方法增强了抗原特异性CD8+ T细胞对HLA-A2+欧文肉瘤细胞的识别,改善了T细胞治疗潜力.

关键词:

尤文肉瘤 (Ewing Sarcoma) 是一种癌症.在MHC-I中,MHC-I是最重要的.这就是TNF TNF.收养的T细胞转移免疫疗法免疫疗法骨质肉瘤是骨质肉瘤的一种疾病.儿科的沙尔科马.拉布多米索科马 (rhabdomyosarcoma) 是一种肌肉癌.

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