UMPlex™: a targeted next-generation sequencing primer design workflow

Area of Science:

• Clinical diagnostics
• Molecular biology
• Genomics

Background:

• Accurate pathogen identification is crucial for effective clinical diagnostics and disease surveillance.
• Existing diagnostic methods may have limitations in sensitivity and breadth of pathogen detection.
• Next-generation sequencing (NGS) offers potential for comprehensive microbial profiling.

Purpose of the Study:

• To develop and validate a tailored next-generation sequencing (tNGS) panel for enhanced pathogen identification.
• To improve the detection rate and accuracy of microbial pathogens in clinical samples, particularly for influenza-like illnesses.

Main Methods:

• Development of a tailored NGS panel using the UMPlex™ primer design workflow.
• Iterative refinement of primer design for specificity and efficiency, with a minimum of two primer pairs per pathogen.
• Validation using cultured pathogens and clinical respiratory samples (n=107).

Main Results:

• The tNGS panel demonstrated high specificity and efficacy, isolating 11 cultured pathogens.
• tNGS outperformed TaqMan Array in detecting a higher number of pathogens in patients with influenza-like symptoms.
• tNGS yielded higher read counts and consistent results with metagenomic NGS, using reduced data volume.

Conclusions:

• The developed tNGS panel is a robust and flexible tool for pathogen identification in clinical diagnostics.
• This approach enhances detection rates for respiratory infections and is valuable for surveillance.
• tNGS offers a significant advancement over traditional methods for diagnosing unknown etiologies.