PCR-electrospray ionization mass spectrometry: The potential to change infectious disease diagnostics in clinical and public health laboratories

Donna M. Wolk, Erin J. Kaleta, Vicki H. Wysocki

Research output: Contribution to journalReview article

55 Scopus citations

Abstract

During the past 20 years, microbial detection methods that are genetically based, such as real-time PCR and peptide nucleic acid fluorescent hybridization, coexisted with traditional microbiological methods and were typically based on the identification of individual genetic targets. For these methods to be successful, a potential cause of infection must be suspected. More recently, multiplex PCR and multiplex RT-PCR were used to enable more broad-range testing based on panels of suspected pathogens. PCR-electrospray ionization mass spectrometry (PCR-ESI/MS) has emerged as a technology that is capable of identifying nearly all known human pathogens either from microbial isolates or directly from clinical specimens. Assay primers are strategically designed to target one or more of the broad pathogen categories: bacterial, mycobacterial, fungal, or viral. With broad-range amplification followed by detection of mixed amplicons, the method can identify genetic evidence of known and unknown pathogens. This unique approach supports a higher form of inquiry, asking the following question: What is the genetic evidence of known or unknown pathogens in the patient sample? This approach has advantages over traditional assays that commonly target the presence or absence of one or more pathogens with known genetic composition. This review considers the breadth of the published literature and explores the possibilities, advantages, and limitations for implementation of PCR-ESI/MS in diagnostic laboratories.

Original languageEnglish (US)
Pages (from-to)295-304
Number of pages10
JournalJournal of Molecular Diagnostics
Volume14
Issue number4
DOIs
StatePublished - Jul 1 2012

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Molecular Medicine

Fingerprint Dive into the research topics of 'PCR-electrospray ionization mass spectrometry: The potential to change infectious disease diagnostics in clinical and public health laboratories'. Together they form a unique fingerprint.

  • Cite this