16S metagenomics for diagnosis of bloodstream infections : opportunities and pitfalls

INTRODUCTION: Bacterial bloodstream infections (BSI) form a large public health threat worldwide. Current routine diagnosis is based on blood culture (BC) but this technique suffers from limited sensitivity. Molecular diagnostic tools have been developed for identification of bacteria in the blood of BSI patients. 16S metagenomics is an open-ended technique that can detect simultaneously all bacteria in a given sample based on PCR amplification of the 16S ribosomal RNA gene (rDNA) followed by sequencing of the PCR amplicons and taxonomic labeling of the sequence reads at genus or species level. Areas covered: Here we review the studies that have used 16S metagenomics for the identification of bacteria in human blood samples. We also discuss the potential added value of 16S metagenomics in the diagnosis of BSI, challenges as well as future directions for implementation in clinical settings. Expert commentary: 16S metagenomics has the potential to complement conventional BC; however, the technique currently suffers from several technical limitations jeopardizing implementation in routine clinical microbiology laboratories. Further studies are required to assess the cost-efficiency and clinical impact of 16S metagenomics in comparison to BC which remains the gold standard diagnostic method for BSI.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:18

Enthalten in:

Expert review of molecular diagnostics - 18(2018), 8 vom: 01. Aug., Seite 749-759

Sprache:

Englisch

Beteiligte Personen:

Rutanga, Jean Pierre [VerfasserIn]
Van Puyvelde, Sandra [VerfasserIn]
Heroes, Anne-Sophie [VerfasserIn]
Muvunyi, Claude Mambo [VerfasserIn]
Jacobs, Jan [VerfasserIn]
Deborggraeve, Stijn [VerfasserIn]

Links:

Volltext

Themen:

16S metagenomics
16S rRNA gene
Bacterial bloodstream infections
Journal Article
Molecular diagnosis
RNA, Ribosomal, 16S
Research Support, Non-U.S. Gov't
Review
Sepsis

Anmerkungen:

Date Completed 11.04.2019

Date Revised 11.04.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/14737159.2018.1498786

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM286277808