Application of metagenomic next-generation sequencing in the diagnosis of infectious diseases

被引:12
作者
Zhao, Yu [1 ]
Zhang, Wenhui [2 ]
Zhang, Xin [1 ]
机构
[1] Capital Med Univ, Beijing Chao Yang Hosp, Dept Urol Surg, Beijing, Peoples R China
[2] Capital Med Univ, Beijing Chao Yang Hosp, Dept Thorac Surg, Beijing, Peoples R China
关键词
metagenomics next-generation sequencing (mNGS); infectious disease; pathogens; microorganisms; diagnosis; MOLECULAR DIAGNOSIS; CHLAMYDIA-PSITTACI; CLINICAL ANALYSIS; VIRUS-INFECTION; PCR; BACTERIAL; FLUID; ENDOPHTHALMITIS; ENCEPHALITIS; SEPSIS;
D O I
10.3389/fcimb.2024.1458316
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Metagenomic next-generation sequencing (mNGS) is a transformative approach in the diagnosis of infectious diseases, utilizing unbiased high-throughput sequencing to directly detect and characterize microbial genomes from clinical samples. This review comprehensively outlines the fundamental principles, sequencing workflow, and platforms utilized in mNGS technology. The methodological backbone involves shotgun sequencing of total nucleic acids extracted from diverse sample types, enabling simultaneous detection of bacteria, viruses, fungi, and parasites without prior knowledge of the infectious agent. Key advantages of mNGS include its capability to identify rare, novel, or unculturable pathogens, providing a more comprehensive view of microbial communities compared to traditional culture-based methods. Despite these strengths, challenges such as data analysis complexity, high cost, and the need for optimized sample preparation protocols remain significant hurdles. The application of mNGS across various systemic infections highlights its clinical utility. Case studies discussed in this review illustrate its efficacy in diagnosing respiratory tract infections, bloodstream infections, central nervous system infections, gastrointestinal infections, and others. By rapidly identifying pathogens and their genomic characteristics, mNGS facilitates timely and targeted therapeutic interventions, thereby improving patient outcomes and infection control measures. Looking ahead, the future of mNGS in infectious disease diagnostics appears promising. Advances in bioinformatics tools and sequencing technologies are anticipated to streamline data analysis, enhance sensitivity and specificity, and reduce turnaround times. Integration with clinical decision support systems promises to further optimize mNGS utilization in routine clinical practice. In conclusion, mNGS represents a paradigm shift in the field of infectious disease diagnostics, offering unparalleled insights into microbial diversity and pathogenesis. While challenges persist, ongoing technological advancements hold immense potential to consolidate mNGS as a pivotal tool in the armamentarium of modern medicine, empowering clinicians with precise, rapid, and comprehensive pathogen detection capabilities.
引用
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页数:15
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