检验医学 ›› 2024, Vol. 39 ›› Issue (12): 1145-1149.DOI: 10.3969/j.issn.1673-8640.2024.12.003

• 全健康策略下的真菌学检验专题 • 上一篇    下一篇

病原mNGS和毛霉菌PCR检测诊断血液病患者肺毛霉菌病

徐春晖1, 周欣悦2, 伊慧明1, 张利宁1, 陈书连1, 朱国庆1, 冯四洲1()   

  1. 1.中国医学科学院血液病医院(中国医学科学院血液学研究所) 血液与健康国家重点实验室国家血液系统疾病临床医学研究中心 细胞生态海河实验室,天津 300020;天津医学健康研究院,天津 301636
    2.天津医科大学,天津 300070
  • 收稿日期:2024-07-03 修回日期:2024-08-22 出版日期:2024-12-30 发布日期:2025-01-06
  • 通讯作者: 冯四洲,E-mail:szfeng@ihcams.ac.cn。
  • 作者简介:徐春晖,女,1985年生,硕士,副主任技师,主要从事临床病原微生物检验工作。
  • 基金资助:
    天津市科技计划项目(21JCZDJC01170);中国医学科学院医学与健康科技创新工程(2021-I2M-1-017);中国医学科学院医学与健康科技创新工程(2023-I2M-2-007)

Diagnostic roles of mNGS and Mucorales PCR in pulmonary mucormycosis in patients with blood diseases

XU Chunhui1, ZHOU Xinyue2, YI Huiming1, ZHANG Lining1, CHEN Shulian1, ZHU Guoqing1, FENG Sizhou1()   

  1. 1. State Key Laboratory of Experimental Hematology,National Clinical Research Center for Blood Diseases,Haihe Laboratory of Cell Ecosystem,Institute of Hematology and Blood Diseases Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Tianjin 300020,China;Tianjin Institutes of Health Science,Tianjin 301636,China
    2. Tianjin Medical University,Tianjin 300070,China
  • Received:2024-07-03 Revised:2024-08-22 Online:2024-12-30 Published:2025-01-06

摘要:

目的 探讨宏基因组二代测序(mNGS)和毛霉菌聚合酶链反应(PCR)检测在血液病患者肺毛霉菌病中的诊断价值。方法 选取2021年6月—2023年12月中国医学科学院血液病医院66例经mNGS检出毛霉目真菌和39例非毛霉菌感染的血液病患者。收集105例患者196例各类临床样本真菌培养、体检和mNGS检测数据。按照欧洲癌症研究和治疗组织/真菌研究组教育和研究共同体发布的侵袭性真菌病定义共识,分为毛霉菌病组(65例,包括确诊3例、临床诊断8例、拟诊54例)和对照组(40例,其中1例为毛霉目真菌mNGS阳性患者)。比较2组患者的临床特征和实验室检测结果。采用PCR对mNGS结果进行验证。比较毛霉菌PCR检测、毛霉菌传统方法检测单独和联合检测诊断毛霉菌病的效能。结果 毛霉菌病组65例患者中,有59例(90.8%)毛霉菌PCR检测阳性;mNGS检出率最高的毛霉菌为根毛霉属(46.2%)。毛霉菌PCR检测血液样本和非血液样本的灵敏度分别为89.7%和76.9%;真菌培养和镜检的灵敏度分别是7.1%和26.2%,传统方法联合毛霉菌PCR检测非血液样本的灵敏度为84.6%。mNGS毛霉菌中位检出时间为1 d,传统方法毛霉菌报阳时间与mNGS中位检出时间相差12 d。结论 毛霉菌mNGS和PCR检测较传统方法时间短、灵敏度高,对早期诊断肺毛霉菌病具有一定优势。

关键词: 毛霉菌, 毛霉菌病, 宏基因组二代测序, 聚合酶链反应, 真菌培养, 显微镜镜检, 分子诊断

Abstract:

Objective To investigate the diagnostic roles of metagenomic next-generation sequencing(mNGS) and Mucorales poly merase chain reaction(PCR) detection in pulmonary mucormycosis in patients with blood diseases. Methods From June 2021 to December 2023,66 patients with Mucorales infection and 39 patients with non-Mucorales infection were enrolled from Institute of Hematology and Blood Diseases Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College. The fungal culture,microscopy and nNGS determination data of 196 clinical samples from 105 patients with Mucorales infection were collected. According to the consensus definition of invasive fungal diseases published by European Organization for Research and Treatment of Cancer/Community for Education and Research of Fungal Research Groups,they were classified into mucormycosis group(65 cases,including 3 confirmed cases,8 clinically diagnosed cases and 54 suspected cases) and control group(40 cases,of which 1 case was positive for Mucorales mNGS). The clinical characteristics and laboratory determination results of the 2 groups were compared. The results of mNGS were verified by PCR. The efficacy of PCR,traditional method single and combined determinations in the diagnosis of mucormycosis was compared. Results Among the 65 patients with mucormycosis,the highest determination rate of mNGS was Rhizobacterium(46.2%),and the PCR results showed 59(90.8%)positive cases. The sensitivities of PCR for determining Mucorales in blood samples and non-blood samples were 89.7% and 76.9%,respectively. The sensitivities of fungal culture and microscopy were 7.1% and 26.2%. The sensitivity of traditional methods combined with PCR for non-blood samples was 84.6%. The median determination time of mNGS for Mucorales was 1 d,and the difference between traditional methods and mNGS for the median determination time was 12 d. Conclusions The determination of Mucorales by mNGS and PCR is shorter and more sensitive than traditional methods,which has advantages in the early diagnosis of pulmonary mucormycosis.

Key words: Mucorales, Mucormycosis, Metagenomic next-generation sequencing, Polymerase chain reaction, Fungal culture, Microscopy, Molecular diagnosis

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