CD4 T 细胞和免疫检查点阻塞的毒性
Noah Earland1,2, Wubing Zhang3, Abul Usmani1
1Division of Cancer Biology, Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri, USA.
Immunological reviews
|July 26, 2023
概括
在治疗前T细胞和TCR多样性的升高预测了接受免疫检查点抑制剂 (ICI) 的癌症患者的严重免疫相关不良事件 (irAEs). 这一发现有助于预测和预防irrAEs,以获得更安全的免疫疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 计算生物学 计算生物学
背景情况:
- 免疫检查点抑制剂 (ICI) 是关键的癌症疗法,但可能导致严重的免疫相关不良事件 (irAEs).
- 预测和预防irAEs对于优化ICI治疗效益和安全至关重要.
- 了解导致严重IRE的因素对于患者管理至关重要.
研究的目的:
- 在接受ICI治疗的晚期黑色素瘤患者中,确定严重的免疫相关不良事件 (irAEs) 的治疗前预测因素.
- 建立数据驱动的洞察力的基础,以改善临床翻译的irAE开发.
主要方法:
- 使用多原子单细胞和批量测序技术 (质量细胞计,scRNA-seq,scVDJ-seq,批量RNA-seq,批量TCR-seq).
- 在三个队伍中分析了71名患有晚期黑色素瘤的患者的外周血液样本.
- 相关的基线免疫细胞种群和T细胞受体 (TCR) 谱系特征与严重的irAE发展.
主要成果:
- 鉴定了提升的激活CD4效应因子记忆T细胞丰度作为严重irAEs的预测因素.
- 发现循环中的TCR多样性增加与严重的irAE发展有关.
- 这些关联独立于受影响的特定器官系统,并在ICI启动后三个月内观察到.
结论:
- 基线循环激活的CD4效应器记忆T细胞和TCR多样性是ICI治疗后严重的irAEs的显著预测因素.
- 这些发现为改善IRAE的预测和预防策略提供了潜力.
- 这项研究有助于减少与ICI治疗相关的发病率和死亡率.
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