口腔癌中的免疫检查点BTLA:表达分析及其与其他免疫调节器的相关性
Jutta Ries1,2, Leah Trumet2,3, Alina Hahn1
1Department of Oral and Cranio-Maxillofacial Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany.
International journal of molecular sciences
|June 27, 2024
概括
口腔状细胞癌 (OSCC) 显示免疫检查点BTLA (B和T淋巴细胞相关抗原) 的表达增加. 与PD1和CD96一起,BTLA可能作为OSCC中新型组合免疫疗法的生物标志物和标.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物标志物发现发现
背景情况:
- 口腔状细胞癌 (OSCC) 呈现出一种免疫耐受性的微环境,通常是由免疫检查点 (ICP) 驱动的.
- 目前针对PD1/PD-L轴的免疫检查点抑制剂 (ICI) 显示出有限的反应率和获得的耐药性,需要新的治疗策略.
- 与B和T淋巴细胞相关的抗原 (BTLA) 被确定为一种新的负免疫检查点,具有作为生物标志物和治疗点的潜力.
研究的目的:
- 与正常口腔粘膜 (NOM) 相比,研究OSCC组织中BTLA的表达水平.
- 评估BTLA作为潜在的诊断生物标志物和OSCC治疗的免疫标.
- 分析BTLA表达与其他免疫检查点 (PD1,PD-L1/2,CD96) 之间的相关性,以评估组合疗法的效用.
主要方法:
- 在102个OSCC组织和105个NOM组织中使用RT-qPCR对BTLA (两个异型),PD1,PD-L1/2和CD96表达的定量分析.
- 免疫组织化学 (IHC) 用于检测BTLA和CD96蛋白表达.
- 进行了统计分析,以比较群体之间的表达水平,并确定检查点之间的相关性.
主要成果:
- 与NOM相比,OSCC组织中BTLA表达 (异构体和蛋白质) 在OSCC组织中显著增加 (p < 0.003).
- 在OSCC组织中,PD1,PD-L1,PD-L2和CD96的表达也显著增加 (p ≤0.001).
- 在BTLA表达与PD1,PD-L1/2和CD96的表达之间观察到强烈的正相关性 (p < 0.001; ρ ≥ 0.5).
结论:
- 在OSCC中,BTLA显著过度表达,这表明它作为一个相关的局部免疫检查点的作用.
- 在OSCC中,BTLA代表了基于抗体的免疫疗法的一个有希望的目标.
- 涉及抗BTLA抗体的组合疗法,可能与抗PD1/PD-L1和抗CD96剂一起,可能会提高OSCC的治疗疗效.
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