通过IGJ和SPATS2L免疫组织化学,敏感地和具体地识别BCR::ABL1+和BCR::ABL1型B型急性淋巴细胞白血病
Catherine K Gestrich1, Shanelle J De Lancy1, Adam Kresak1
1Department of Pathology, University Hospitals Cleveland Medical Center, University Hospitals Rainbow Babies and Children's Hospital and Case Western Reserve University, Cleveland, Ohio, USA.
针对IGJ和SPATS2L的免疫组织化学可以识别BCR::ABL1型B型急性淋巴细胞白血病 (B-ALL). 这些标记提供了一种更容易获得的分类方法,有助于治疗管理,特别是在资源有限的环境中.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 分子诊断学 分子诊断学
背景情况:
- 准确分类B级急性淋巴细胞白血病 (B-ALL) 对于有效的治疗和预后至关重要.
- BCR::ABL1-like B-ALL是一种通过基因表达识别的独特亚型,缺乏单一的复发性遗传异常.
- 目前用于BCR::ABL1-like B-ALL的诊断方法昂贵,耗时,并且不是普遍可用的.
研究的目的:
- 为了确定可靠和可访问的BCR::ABL1-like B-ALL.的替代标记物.
- 为此目的,评估免疫球蛋白连接链 (IGJ) 和与精子发生相关的富有血清素的2样 (SPATS2L) 免疫组织化学 (IHC) 的实用性.
主要方法:
- 在三个机构和两个实验室分析了118例B-ALL病例.
- 对IGJ和SPATS2L蛋白质进行免疫组织化学 (IHC) 染色.
- 计算每个标记物的灵敏度,特异性,正预测值 (PPV) 和负预测值 (NPV).
主要成果:
- 在IGJ IHC中,它具有很高的灵敏度 (83%) 和特异性 (95%),可以识别BCR::ABL1-like B-ALL.
- SPATS2L IHC显示出类似的敏感性,但较低的特异性 (85%) 和PPV (70%).
- 结合IGJ或SPATS2L染色使灵敏度提高到93%和NPV提高到95%.
结论:
- IGJ和SPATS2L IHC是有希望的,可访问的生物标志物,用于识别BCR::ABL1-like B-ALL.
- 这些IHC标志物可以帮助疾病分类,特别是在资源有限的环境中.
- 建议在更大的队列中进一步验证以确认这些发现.
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