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在慢性移植对宿主疾病中定义致病性IL-17和CSF-1基因表达特征

Julie R Boiko^1,2, Kathleen S Ensbey¹, Olivia G Waltner¹

¹Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA.

|February 20, 2025

概括

在患有慢性移植与宿主疾病 (cGVHD) 的患者中识别特定的免疫特征可以指导向治疗. 研究人员在单细胞中发现了明显的介质蛋白-17 (IL-17) 和殖民地刺激因子1 (CSF-1) 签名,有助于治疗选择.

科学领域:

免疫学免疫学免疫学
造血细胞移植造血细胞移植
分子生物学分子生物学

背景情况:

慢性移植与宿主疾病 (cGVHD) 是全源造血细胞移植 (HCT) 后的一个主要并发症,导致显著的发病率和死亡率.
目前针对细胞因子的治疗方法,如介素-17 (IL-17) 和殖民地刺激因子1 (CSF-1),仅在一小部分患者中表现出有效性,并且经常在经验上使用.
生物标志物对于识别那些会对特定治疗做出反应或需要预防性治疗的患者来说至关重要.

研究的目的:

在cGVHD的临床前模型中开发一种方法来识别与IL-17和CSF-1相关的特定免疫特征.
在患者样本中验证这些特征,以预测对向治疗的反应.
为了促进cGVHD的个性化治疗选择.

主要方法:

在cGVHD的临床前小鼠模型中利用单细胞测序方法.
在小鼠血液单细胞中定义了时间IL-17和CSF-1特征.
在被诊断为cGVHD的患者和在HCT后风险患者的单细胞群中询问了这些特征.

主要成果:

在小鼠血液单细胞中识别出明显的,非直观的IL-17和CSF-1特征.
在诊断时70%的cGVHD患者中检测到相关单细胞群中的这些特征.
在HCT后100天的50%患者中发现了签名,后者后来发展为cGVHD.

结论:

基于单细胞的IL-17和CSF-1特征可以在很大一部分cGVHD患者中确定.
这些签名有望在未来识别潜在的响应者和对向疗法的不响应者.
这种方法可能会导致更个性化和更有效的cGVHD治疗策略.

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