与治疗相关的急性淋巴细胞白血病在前患乳腺癌的妇女
Hoda Pourhassan1, Jianying Zhang2, Jose Tinajero3
1Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, California, USA.
British journal of haematology
|April 1, 2024
概括
在女性中,与治疗相关的急性淋巴细胞白血病 (tr-ALL) 通常是乳腺癌治疗之后的. 费城染色体阳性tr-ALL显示出更好的生存率,而KMT2A改变可能表明较差的结果,可能通过干细胞移植得到改善.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 遗传学 遗传学 是一个
背景情况:
- 与治疗相关的急性淋巴细胞白血病 (tr-ALL) 发生在化学疗法或放射治疗之前的癌症后.
- 对于tr-ALL,女性占主导地位,与乳腺癌治疗和致癌疗法有关.
研究的目的:
- 审查乳腺癌治疗后妇女的tr-ALL病例.
- 专注于细胞遗传分类及其对生存结果的影响.
主要方法:
- 在乳腺癌治疗后被诊断患有ALL的37名妇女的回顾性审查.
- 对细胞遗传类别的分析,包括费城染色体 (Ph+),KMT2A变异等.
- 评估整体存活率 (OS) 和无复发存活率 (RFS),考虑全源造血细胞移植 (alloHCT).
主要成果:
- 在32%的患者中发现了费城染色体阳性 (Ph+).
- 在22%的患者中存在KMT2A变化,在46%的患者中存在其他细胞遗传变化.
- 平均OS和RFS分别为19.4个月和12.9个月. 与KMT2Ar和其他组相比,Ph+疾病显示出更高的生存率.
- 在CR1中,有17名患者 (45.9%) 接受了aloHCT,其中4名在移植后复发. 在分配HCT后,KMT2Ar组的OS和RFS优越.
结论:
- 费城染色体是tr-ALL乳腺癌后最常见的遗传发现,可能与更好的生存相关.
- KMT2A的变化与较差的结果有关,但alloHCT可能会改善这个子组的生存率.
- 细胞遗传学分析对于tr-ALL的风险分层和治疗决策至关重要.
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