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慢性髓性白血病具有罕见的费城染色体变异,涉及16号染色体

Salem M Bahashwan^1,2

¹Department of Hematology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.

The American journal of case reports

|August 31, 2024

概括

本病例报告详细介绍了慢性髓性白血病 (CML) 中罕见的费城染色体变异,涉及染色体16. 患者通过伊马替尼布获得了深度分子缓解,突出显示了复杂CML病例的治疗疗效.

科学领域:

血液学血液学血液学
在瘤学瘤学.
细胞遗传学细胞遗传学

背景情况:

慢性骨髓性白血病 (CML) 通常以费城 (Ph) 染色体为特征,这是来自 (9;22) 转位的BCR-ABL融合基因的结果.
虽然BCR-ABL融合存在于~95%的CML病例中,但可能会发生涉及额外染色体的复杂转位.

研究的目的:

报告一种罕见的CML病例,该病例具有复杂变异的费城染色体,涉及染色体16.
描述这种独特病例的临床表现,诊断发现和治疗结果.

主要方法:

为了细胞遗传特征,进行了型和光在位混合 (FISH) 分析.
该患者接受了第一代氨酸激酶抑制剂伊马替尼 (imatinib) 的治疗.

主要成果:

一个涉及染色体 (16;22) (q24,q11.2) 的新型转位与标准 (9;22) 转位一起被确定,形成了一个变异的PH染色体.
患者实现了深度分子缓解,两种转位的消失在伊马替尼治疗后通过重复的FISH分析得到证实.

结论:

在CML中变异的Ph染色体可以呈现出独特的细胞遗传发现.
即使在复杂的染色体异常的情况下,也可以使用氨酸激酶抑制剂进行有效的治疗.
需要进一步的研究和更大规模的研究来了解CML中Ph染色体变异的预后影响.

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