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在B型淋巴细胞白血病中,MYC-r与非IG伴侣同时与神秘的t(12;21):一个病例和预后意义

Prasad Koduru¹, Weina Chen¹, Franklin Fuda¹

¹Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA.

Cancer genetics

|February 21, 2025

概括

这项研究报告了一个罕见的儿童B-淋巴细胞白血病 (B-ALL) 病例,同时出现MYC重组和神秘的t(12;21) 转位. 患者实现了持久的完全缓解,强调了识别B-ALL.复杂遗传变化的重要性.

科学领域:

儿科瘤学儿科瘤学
血液学血液学血液学
癌症遗传学癌症遗传学

背景情况:

儿童B型淋巴细胞白血病 (B-ALL) 通常具有预后性染色体重组.
通常在成熟的B细胞瘤中看到的MYC重组 (MYC-r),在B-ALL中很少见.
同时发生的基因变异会影响B-ALL的预后和治疗反应.

研究的目的:

报告一个独特的儿科B-ALL病例与并发的MYC-r和一个神秘的t.
为了研究双重白血病原性改变和非IG合作伙伴MYC-r.的B-ALL患者的临床结果.
提高对儿童B-ALL.罕见遗传亚型的理解.

主要方法:

一个儿童被诊断患有B-ALL的病例报告.
对白血病爆发的综合免疫类型分析.
细胞遗传学分析,包括MYC重组和ETV6::RUNX1.1.的karyotyping和FISH.
对具有双变异的B-ALL和MYC-r.类似病例的文献综述.

主要成果:

患者呈现B-ALL和一个复杂的型,包括t(4;8)(q31;q24) 与MYC-r,以及一个神秘的t(12;21) (ETV6::RUNX1).
免疫类型确定证实了B-ALL.
患者在诊断后的11年内实现了持续的完全缓解.

结论:

与非IG伴侣并发的MYC重组和其他白血病原性变化代表了儿童B-ALL的罕见但可能可管理的亚型.
这一案例强调了详细的基因分析对于准确的预后和治疗策略在儿科B-ALL.的重要性.
在某些具有复杂遗传特征的特定病例中,可以实现长期缓解.

关键词:

B-ALL,所有的人.MYC::非IG公司这是一个神秘的 ETV6::RUNX1

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