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Published on: March 8, 2012
Comparative performance of L1- and E6/E7-targeted HPV genotyping assays based on a unified MeltArray platform
Yuli Liu1, Huihui Qu1, Feng Zhang2
1State Key Laboratory of Vaccines for Infectious Diseases, Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Public Health, Xiamen University, Xiamen, China.
Microbiology Spectrum
|May 18, 2026
Summary
Human papillomavirus (HPV) L1 and E6/E7 gene assays show similar performance for cervical cancer screening. Both HPV testing methods are reliable and interchangeable for detecting high-risk HPV types in various sample types.
Area of Science:
- Molecular diagnostics
- Oncology
- Virology
Background:
- Human papillomavirus (HPV) testing is crucial for cervical cancer screening.
- Commercial HPV assays often target L1 or E6/E7 oncogenes, but comparative data under standardized conditions are limited.
Purpose of the Study:
- To develop and compare HPV genotyping assays targeting L1 and E6/E7 genes on the same platform.
- To assess the concordance and performance of L1 and E6/E7 assays in clinical samples.
Main Methods:
- Developed two HPV genotyping assays (L1 and E6/E7 targets) on the MeltArray platform.
- Analyzed 2,477 clinical samples (liquid-based cytology and FFPE).
- Assessed concordance using Cohen's kappa statistics.
Main Results:
- Achieved 98.8% overall agreement in HPV detection (κ = 0.976) between L1 and E6/E7 assays.
- Demonstrated high concordance across different sample types and lesion severities.
- Observed rare discordant genotyping results, mainly for specific HPV types.
Conclusions:
- L1 and E6/E7-based HPV assays demonstrate equivalent performance under matched analytical conditions.
- The findings support the interchangeable use of L1 and E6/E7 targets in cervical cancer screening.
- Both assay types show high reliability across the spectrum of cervical lesions.
