基于年龄,绝对中性粒细胞计数和绝对淋巴细胞计数的全球适用的"三重A"风险模型
Ayalew Tefferi1, Giuseppe G Loscocco2, Faiqa Farrukh1
1Divisions of Hematology and Hematopathology, Mayo Clinic, Rochester, Minnesota, USA.
American journal of hematology
|September 4, 2023
概括
使用年龄,绝对中性粒细胞计数 (ANC) 和绝对淋巴细胞计数 (ALC) 的新风险模型有效预测了基本血小板血 (ET) 的存活率. 这种简单的,经过验证的AgeAncAlc (AAA) 模型的性能优于对于基本血小板血患者的现有系统.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 预测生物标志物 预测生物标志物
背景情况:
- 基本血小板血 (ET) 是一种骨髓增殖性瘤,需要准确的预后模型来管理患者.
- 现有的ET预后评分系统可能无法完全捕捉生存细微差别.
- 特定血细胞计数 (如中性粒细胞,淋巴细胞和单细胞) 在ET存活中的预后作用需要进一步阐明.
研究的目的:
- 为了评估绝对中性粒细胞 (ANC),淋巴细胞 (ALC) 和单细胞 (AMC) 的个体预后贡献,在基本血栓塞瘤 (ET) 中考虑整体存活率 (OS),无白血病存活率 (LFS) 和无髓纤维化存活率 (MFFS).
- 开发和验证一种新的,简单的,全球适用的风险模型,用于预测ET患者的生存率.
- 将新模型的性能与已建立的ET国际预测评分系统 (IPSET) 进行比较.
主要方法:
- 来自梅奥诊所数据库的598名ET患者的回顾性分析,使用佛罗伦萨大学的485名患者队列进行外部验证.
- 采用多变量分析来确定年龄,ANC和ALC对生存结果的预后意义.
- 一个新的4层AgeAncAlc (AAA) 风险模型是基于从显著的预后因素中获得的危险比率 (HR) 得分而开发的.
主要成果:
- 年龄 (>70岁和50-70岁),高ANC (≥8 × 10^9/L) 和低ALC (<1.7 × 10^9/L) 独立地与ET的整体存活率较低有关.
- 开发的AAA风险模型将患者分为四个层次 (高,中等-2,中等-1,低),具有明显的中位生存率 (8至47年).
- 与IPSET (AIC 647) 相比,AAA模型显示出更高的性能 (AIC 621),并在外部队列中得到验证. 较低的ALC也与较低的MFFS有关.
结论:
- 新的AgeAncAlc (AAA) 风险模型,结合年龄,ANC和ALC,提供了一个简单且经过验证的工具,用于预测基本血栓细胞血症的存活率.
- 在ET患者的预后准确性方面,AAA模型的表现优于IPSET.
- 这项研究强调了像ALC这样的免疫相关生物标志物的潜在作用,作为骨髓增殖性瘤的预后指标,并建议AAA模型作为未来分子改进的平台.
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