免疫检查点抑制剂相关心肌炎患者的自身抗体分析:一个试点研究
Siqi Li1, DongZhu Xu1,2, Nobuyuki Murakoshi1
1Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Frontiers in immunology
|September 26, 2024
概括
这项试点研究确定了新型血清自身抗体 (AAbs) 作为免疫检查点抑制剂 (ICI) 相关心肌炎的潜在生物标志物. 这些发现可能有助于预测和诊断这种罕见但严重的不良事件.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 心脏病学 心脏病学
背景情况:
- 免疫检查点抑制剂 (ICI) 可以导致心肌炎,这是一个罕见但致命的免疫相关不良事件.
- 确定可靠的生物标志物对于管理接受ICI治疗的患者至关重要.
- 血清自身抗体 (AAbs) 正被研究为ICI心肌炎的潜在预测,诊断和预后生物标志物.
研究的目的:
- 调查与免疫检查点抑制剂 (ICI) 相关的心肌炎相关的血清自身抗体 (AAbs).
- 确定用于预测和诊断ICI心肌炎的新型候选生物标志物.
- 通过AAb分析,探索ICI心肌炎的发病因子.
主要方法:
- 人类蛋白质组微阵列 (约17000种蛋白质) 用于AAb分析.
- 来自三名ICI心肌炎患者的血清在基线和心肌炎发病后被分析.
- 量化了免疫球蛋白G (IgG) 对自身抗原的反应性,并进行了途径丰富分析.
主要成果:
- 免疫球蛋白卡帕J区域 (RBPJ) 的重组信号结合蛋白在基线时被所有三名患者识别.
- 对真核转化启动因子4E结合蛋白3 (EIF4EBP3) 的抗体在ICI心肌炎发作时增加了38倍.
- 丰富性分析表明受影响的途径包括B细胞受体信号传递和白细胞透内皮细胞迁移,以及与扩张性心肌病相关.
结论:
- 本试点研究提供了ICI心肌炎中血清AAb分析的首个综合分析.
- 确定了与ICI心肌炎风险和发病因子相关的新型候选生物标志物.
- 为了证实这些发现,需要在更大的临床试验中进一步验证.
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