检验医学 ›› 2026, Vol. 41 ›› Issue (4): 391-397.DOI: 10.3969/j.issn.1673-8640.2026.04.013

• 论著 • 上一篇    下一篇

基于显著差异代谢物构建血液系统恶性肿瘤中枢神经系统浸润早期预测模型

王勉1, 王彬彬2, 宋志强2, 姚永华1, 唐古生2()   

  1. 1 上海市市东医院上海 200438
    2 海军军医大学第一附属医院上海 200433
  • 收稿日期:2024-10-29 修回日期:2025-03-10 出版日期:2026-04-30 发布日期:2026-05-07
  • 通讯作者: 唐古生,E-mail:drake015@163.com
  • 作者简介:王 勉,女,1993年生,硕士,住院医师,主要从事血液系统疾病诊治工作。
  • 基金资助:
    杨浦区科技和经济委员会杨浦区卫生健康委员会科研课题计划(YPQ202410);上海市自然科学基金项目(20ZR1457000)

An early prediction model for central nervous system leukemia/lymphoma infiltration of hematological malignancies based on significantly differential metabolomics

WANG Mian1, WANG Binbin2, SONG Zhiqiang2, YAO Yonghua1, TANG Gusheng2()   

  1. 1 Shidong HospitalShanghai 200438, China
    2 The First Af?liated Hospital of Naval Medical UniversityShanghai 200433, China
  • Received:2024-10-29 Revised:2025-03-10 Online:2026-04-30 Published:2026-05-07

摘要:

目的 采用代谢组学技术分析中枢神经系统白血病/淋巴瘤(CNSL)浸润后的显著差异代谢物,建立可用于早期预测CNSL的诊断模型,并进行初步验证。方法 选取2018年1月—2021年9月海军军医大学第一附属医院血液内科经骨髓穿刺和活检确诊的恶性血液病伴CNSL患者25例(CNSL组)和非肿瘤患者29例(对照组),收集其脑脊液样本,采用超高效液相色谱-质谱(UPLC-MS)技术检测脑脊液代谢物,筛选2组显著差异性代谢物。采用Logistic回归分析评估CNSL的影响因素,并建立CNSL预测模型。采用受试者工作特征(ROC)曲线评价模型效能。另选取同期海军军医大学第一附属医院神经内科CNSL患者5例,收集其相关临床数据,用于验证模型的临床应用效果。结果 共筛选出36种显著差异代谢物,涉及32条代谢通路;影响值居前2位的通路分别为精氨酸合成、谷氨酰胺和谷氨酸代谢,包含L-精氨酸、瓜氨酸、L-谷氨酰胺、L-谷氨酸和尿素5种关键代谢物,其中瓜氨酸、L-谷氨酰胺是CNSL的独立危险因素(P<0.05),基于这2种代谢物建立CNSL早期预测模型。ROC曲线分析结果显示,模型诊断CNSL的曲线下面积(AUC)为0.819,敏感性为72.0%,特异性为82.8%。临床验证结果显示,模型预测结果与实际观测结果一致性较好。结论 基于显著差异代谢物构建的CNSL早期预测模型可以用于CNSL的早期诊断。

关键词: 代谢物, 血液系统恶性肿瘤, 中枢神经系统浸润, 脑脊液, 代谢组学

Abstract:

Objective To analyze the significantly differential metabolites after central nervous system leukemia/lymphoma(CNSL) infiltration based on metabolomics,establish a diagnostic model for early prediction of CNSL,and conduct preliminary validation. Methods From January 2018 to September 2021,25 patients with hematological malignancies accompanied by CNSL diagnosed by bone marrow puncture and biopsy at the Department of Hematology of the First Affiliated Hospital of Naval Medical University(CNSL group) and 29 non-tumor patients(control group) were enrolled. The brain cerebrospinal fluid samples were collected. The brain cerebrospinal fluid metabolites were determined using ultra-high performance liquid chromatography-mass spectrometry(UPLC-MS),and the significantly differential metabolites in the 2 groups were screened. Logistic regression analysis was used to evaluate the influence factors for CNSL,and a CNSL prediction model was established. Receiver operating characteristic(ROC) curve was used to evaluate the model efficacy. Totally,5 CNSL patients in the Department of Neurology during the same period were enrolled,and the relevant clinical data were collected for verifying the clinical application effect of the model. Results A total of 36 significantly differential metabolites were screened out,involving 32 metabolic pathways. The top 2 influencing pathways were arginine synthesis and glutamine and glutamete matabolism,including 5 key metabolites such as L-arginine,citrulline,L-glutamine,L-glutamate and urea. Citrulline and L-glutamine were independent rislc factors for to CNSL(P<0.05),and a CNSL diagnosing model was established based on these 2 metabolites. The areas under curves(AUC) of the model for diagnosing CNSL was 0.819,with a sensitivity of 72.0% and a specificity of 82.8%. The clinical verfication results showed that the model's prediction results were in good consistency with the actual observation results. Conclusions The CNSL prediction model established based on significantly differential metabolites can be used for the early diagnosis of CNSL.

Key words: Metabolite, Hematological malignancy, Central nervous system leukemia/lymphoma infiltration, Cerebrospinal fluid, Metabolomics

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