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特定于癌症的CD8+T细胞能看到什么? 免疫抗剂的贡献免疫抗剂的贡献

Ben Nicholas¹, Paul Skipp¹

¹Centre for Proteomic Research, Biological Sciences and Institute for Life Sciences, Building 85, University of Southampton, SO17 1BJ, U.K.

Essays in biochemistry

|July 28, 2023

概括

免疫瘤学识别了来自各种来源的瘤特异性CD8+T细胞表位,包括正规,非正规和非人类来源. 然而,它们对抗瘤免疫力的确切贡献仍然不确定.

科学领域:

免疫学免疫学免疫学
蛋白质组学是指蛋白质组学.
癌症研究癌症研究

背景情况:

免疫组学使用质谱学分析与人类白细胞抗原 (HLA) 分子结合的.
识别瘤特异性的CD8+T细胞表位对癌症免疫治疗至关重要.
直接观察瘤中的表位提供了比in-silico预测更大的确定性,避免了自身反应的风险.

研究的目的:

审查当前关于正规,非正规和非人类 CD8+ T 细胞表位的证据,这些表位由免疫学识别出来.
评估不同表位素来源对抗瘤CD8+T细胞反应性的贡献.

主要方法:

采用免疫组学和双重质谱法,对瘤组织中的质进行调查.
分析来自正规 (例如瘤相关抗原),非正规 (例如拼接事件) 和非人类 (例如病毒) 来源的数据.
将直接观测与in-silico预测进行比较,用于表位验证.

主要成果:

规范性瘤抗原通常具有弱免疫性.
通过免疫类药物直接识别瘤特异性新抗原是罕见的,但有价值的.
非正典来源 (拼接,翻译缺陷) 和非自我表征 (病毒) 越来越多地被探索,但越来越少得到验证.
由于病毒蛋白丰度较低,对瘤中的病毒表位体的免疫学探索是有限的.

结论:

在驱动抗瘤CD8+T细胞反应中的正规性,非正规性和非人类表位的相对重要性目前尚不清楚.
需要进一步的研究,以充分阐明各种CD8+T细胞表位在癌症免疫中的起源和影响.
免疫组学是发现和验证T细胞表位的强大工具,但在全面分析方面仍然存在挑战.

关键词:

这些T细胞是T细胞.免疫类药物免疫类药物质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量新抗原是一种新抗原.

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