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识别来自B细胞前体急性淋巴细胞白血病的小细胞外囊泡的核心蛋白质特征

Nathaniel Edward Bennett Saidu¹, Miriam Aarsund¹, Eva Sørensen²

¹Department of Pharmacology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.

Scandinavian journal of immunology

|March 5, 2024

概括

研究人员在患有B细胞前体急性淋巴细胞白血病 (BCP-ALL) 的儿童血液样本中确定了细胞外囊泡 (EV) 上的特定蛋白质. 这些EV生物标志物有可能取代侵入性骨髓检测,用于诊断和监测BCP-ALL.

科学领域:

生物化学生物化学
在瘤学瘤学.
儿科儿科儿科

背景情况:

儿童急性白血病诊断依赖于骨髓吸血来评估最小残留疾病.
液体活检提供了一个不那么侵入性的替代方案,但缺乏敏感的基于血液的生物标志物.
循环细胞外囊泡 (EVs) 是血液恶性瘤的新兴生物标志物.

研究的目的:

在儿科B细胞前体急性淋巴细胞白血病 (BCP-ALL) 中,在细胞外囊泡 (EV) 上识别癌症特异性蛋白标记物.
评估这些EV衍生的标记物作为BCP-ALL的诊断生物标记物的潜力.
在儿童白血病监测中减少侵入性骨髓吸收的需要.

主要方法:

从BCP-ALL细胞和健康的供体B细胞中获得的EV的蛋白质组分析.
来自BCP-ALL细胞系和主要患者样本的EV蛋白质组的比较.
从儿科BCP-ALL患者和健康对照者的血中分离出的EV的分析.

主要成果:

在儿童BCP-ALL患者的血中观察到EVs的度升高.
在BCP-ALL衍生的EVs中,专门发现了6种蛋白质 (CD317,CD38,IGF2BP1,PCNA,CSDE1和GPR116) 的特征.
这些蛋白质在健康对照的EV中不存在,表明癌症选择性.

结论:

血EVs上识别的蛋白质签名显示,作为儿科BCP-ALL.的非侵入性诊断生物标志物具有前途.
这些基于EV的生物标志物可能会改善白血病监测并减少患者的不适.
需要进一步验证,以确定这些标记物在儿科白血病中临床使用.

关键词:

在BCP-ALL中,电动汽车 (EV) 是一个蛋白质组学蛋白质组学

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