Detection of Streptococcus pyogenes virulence factors by multiplex PCR
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Published on: September 5, 2013
Anna L Borek1, Katarzyna Obszańska, Waleria Hryniewicz
1Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Warszawa, Poland.
Abstract:
Streptococcus pyogenes (GAS) is a human pathogen that causes multiple infections worldwide. The pathogenic properties of GAS strains are often linked to the production of virulence factors such as toxins, proteases or DNases. Detection of virulence factors produced by GAS strains can be used to either determine pathogenic potential of the strain or as a rapid screening and typing method. We recently developed a method to detect simultaneously 20 GAS virulence factors (spd3, sdc, sdaB, sdaD, speB, spyCEP, scpA, mac, sic, speL, K, M, C, I, A, H, G, J, smeZ and ssa) in four low volume multiplex PCR reactions (Borek et al., 2011) and below we present a detailed protocol describing the method.
Insights
This study details a method for detecting 20 Streptococcus pyogenes (GAS) virulence factors using multiplex PCR. This aids in assessing GAS pathogenicity and enables rapid screening and typing.
Area of Science:
- Microbiology
- Molecular Biology
- Infectious Diseases
Background:
- Streptococcus pyogenes (GAS) is a significant human pathogen causing global infections.
- GAS pathogenicity is often associated with specific virulence factors like toxins and enzymes.
- Accurate detection of these factors is crucial for understanding disease potential and for epidemiological surveillance.
Purpose of the Study:
- To present a detailed protocol for a multiplex PCR method.
- To enable simultaneous detection of 20 distinct GAS virulence factors.
- To provide a tool for rapid screening and typing of GAS strains.
Main Methods:
- Development of four low-volume multiplex PCR reactions.
- Simultaneous amplification and detection of 20 GAS virulence factor genes.
- Detailed protocol description for reproducibility.
Main Results:
- Successful simultaneous detection of 20 GAS virulence factors.
- The method is based on previously established multiplex PCR techniques (Borek et al., 2011).
- The protocol is designed for efficiency and low sample volume.
Conclusions:
- The described multiplex PCR method offers a reliable approach for identifying GAS virulence factors.
- This technique can be valuable for clinical diagnostics, epidemiological studies, and strain characterization.
- The detailed protocol facilitates widespread adoption and application of this detection method.
