异常PD-1表达对急性白血病预后的临床影响
Yanjie Ruan1,2, Jiyu Wang1, Qiuye Zhang3
1Department of Hematology, Hematology Research Center, The Second Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
European journal of medical research
|September 27, 2023
概括
在T细胞上异常的PD-1表达表明急性髓性白血病 (AML) 和急性淋巴细胞白血病 (ALL) 患者的预后不佳. 这一发现支持针对这些白血病类型的PD-1抑制剂免疫疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 血液学 血液学 血液学
背景情况:
- 急性髓性白血病 (AML) 和急性淋巴细胞白血病 (ALL) 在成年人中预后不佳.
- 免疫检查点阻塞,特别是PD-1抑制剂,对急性白血病 (AL) 有希望.
- 在AL的T细胞上PD-1表达的预后意义仍然不清楚.
研究的目的:
- 评估在AML和ALL患者中CD4+和CD8+T淋巴细胞上的PD-1表达.
- 确定PD-1表达作为AL的预后指标的临床意义.
主要方法:
- 流细胞计被用来分析PD-1表达在外围CD4+和CD8+T细胞.
- 分析了来自53名AML患者,44名ALL患者和28名健康对照者的外周血液样本.
主要成果:
- 在AML和ALL患者中,CD4+PD-1+和CD8+PD-1+T淋巴细胞的百分比高于健康对照组.
- 增加的CD4+ PD-1+ T细胞是AML患者预后不佳的指标.
- 增加的CD8+ PD-1+ T细胞是ALL患者预后不佳的指标.
结论:
- 在T细胞上异常的PD-1表达与AL患者的预后相关.
- PD-1表达水平可以作为AML和ALL的不良预后指标.
- PD-1 抑制剂免疫疗法可能有利于具有高周边PD-1+ T 细胞计数的AL患者.
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