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Using a Pan-Viral Microarray Assay (Virochip) to Screen Clinical Samples for Viral Pathogens
Published on: April 27, 2011
Rapid detection of common viruses using multi-analyte suspension arrays
Daojun Yu1, Shenghai Wu, Baohong Wang
1State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University., 79 Qingchun Rd., Hangzhou, 310003 China.
Journal of Virological Methods
|July 12, 2011
Summary
This study introduces a multi-analyte suspension array method for detecting Herpes virus (HSV), Human papillomavirus (HPV), and Hepatitis B virus (HBV). The technique offers a flexible, high-throughput, and simple approach for rapid viral identification in clinical settings.
Area of Science:
- Molecular biology
- Virology
- Biotechnology
Background:
- Accurate and rapid viral detection is crucial for clinical diagnostics.
- Existing methods may lack the throughput or specificity required for comprehensive viral screening.
Purpose of the Study:
- To develop and evaluate a multi-analyte suspension array (MSA) method for the simultaneous detection of common viruses.
- To assess the sensitivity, specificity, and reproducibility of the MSA technique for Herpes virus (HSV), Human papillomavirus (HPV), and Hepatitis B virus (HBV) detection.
Main Methods:
- Design of 16 species-specific oligonucleotide probes and 9 primer sets based on conserved viral sequences from GenBank.
- Utilizing serial symmetric PCR, asymmetric PCR, and multiplex PCR assays.
- Analysis of PCR products using a Luminex-100 analyzer for multi-analyte suspension arrays.
Main Results:
- The MSA method demonstrated complete concordance with comparative sequence analyses for detecting HSV types, HPV types, and HBV genotypes (B, C, D).
- No significant difference in median fluorescence intensity (MFI) was observed between symmetric and asymmetric PCR for viral DNA concentrations above 10^4 copies/test.
- The assay showed negative results for viral DNA concentrations below 10^3 copies/test, indicating good specificity.
Conclusions:
- Multi-analyte suspension arrays provide a flexible, high-throughput, and relatively simple method for the rapid identification of common viruses.
- This technique is suitable for routine use in clinical laboratories for efficient viral diagnostics.
