16S 核糖体 RNA 引物的选择影响男性尿液微生物组特征分析。
Choice of 16S Ribosomal RNA Primers Impacts Male Urinary Microbiota Profiling.
机构信息
Centro de Oncologia Molecular, Hospital Sírio-Libanês, São Paulo, Brazil.
Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil.
出版信息
Front Cell Infect Microbiol. 2022 Apr 21;12:862338. doi: 10.3389/fcimb.2022.862338. eCollection 2022.
Accessibility to next-generation sequencing (NGS) technologies has enabled the profiling of microbial communities living in distinct habitats. 16S ribosomal RNA (rRNA) gene sequencing is widely used for microbiota profiling with NGS technologies. Since most used NGS platforms generate short reads, sequencing the full-length 16S rRNA gene is impractical. Therefore, choosing which 16S rRNA hypervariable region to sequence is critical in microbiota profiling studies. All nine 16S rRNA hypervariable regions are taxonomically informative, but due to variability in profiling performance for specific clades, choosing the ideal 16S rRNA hypervariable region will depend on the bacterial composition of the habitat under study. Recently, NGS allowed the identification of microbes in the urinary tract, and urinary microbiota has become an active research area. However, there is no current study evaluating the performance of different 16S rRNA hypervariable regions for male urinary microbiota profiling. We collected urine samples from male volunteers and profiled their urinary microbiota by sequencing a panel of six amplicons encompassing all nine 16S rRNA hypervariable regions. Systematic comparisons of their performance indicate V1V2 hypervariable regions better assess the taxa commonly present in male urine samples, suggesting V1V2 amplicon sequencing is more suitable for male urinary microbiota profiling. We believe our results will be helpful to guide this crucial methodological choice in future male urinary microbiota studies.
下一代测序(NGS)技术的普及使得研究不同生境中微生物群落的特征成为可能。16S 核糖体 RNA(rRNA)基因测序是广泛用于 NGS 技术中微生物组分析的方法。由于大多数使用的 NGS 平台产生短读长,因此测序全长 16S rRNA 基因是不切实际的。因此,在微生物组分析研究中,选择要测序的 16S rRNA 高变区至关重要。所有九个 16S rRNA 高变区都具有分类学信息,但由于特定类群的分析性能存在差异,因此选择理想的 16S rRNA 高变区将取决于研究中特定生境的细菌组成。最近,NGS 技术允许鉴定尿路上的微生物,尿路上皮微生物组已成为一个活跃的研究领域。然而,目前尚无研究评估不同 16S rRNA 高变区在男性尿微生物组分析中的性能。我们收集了男性志愿者的尿液样本,并通过测序涵盖所有九个 16S rRNA 高变区的六个扩增子面板来分析他们的尿微生物组。对其性能的系统比较表明,V1V2 高变区能更好地评估男性尿液样本中常见的分类群,这表明 V1V2 扩增子测序更适合男性尿微生物组分析。我们相信我们的结果将有助于指导未来男性尿微生物组研究中这一关键的方法学选择。