Loop mediated isothermal amplification (LAMP) for the detection and subtyping of human papillomaviruses (HPV) in oropharyngeal squamous cell carcinoma (OPSCC).

D M Livingstone, M Rohatensky, P Mintchev, S C Nakoneshny, D J Demetrick, G van Marle, J C Dort,

Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, January 18, 2016

Human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) is a growing problem that presents a significant challenge to Otolaryngologist-Head and Neck Surgeons. Knowledge of HPV status yields critical prognostic information, with potential for treatment selection based on tumour HPV status. The current gold standard of diagnosis, PCR, is expensive, demanding and time consuming. Alternatives such as p16 immunohistochemistry are subjective and potentially inaccurate. Loop-mediated isothermal amplification (LAMP) is a rapid, robust and inexpensive molecular diagnostic technique. Our aim was to verify LAMP as a potential bedside diagnostic assay for subtyping of HPV in OPSCC. DNA from 72 formalin-fixed paraffin embedded (FFPE) OPSCC patient samples was tested. PCR and LAMP were then performed to specifically identify HPV 16, 18, 31, 33 and 35. For these high-risk subtypes, LAMP had an overall sensitivity of 99.4% and specificity of 93.2% relative to PCR. LAMP is a promising technology that can accurately diagnose high-risk HPV infection.

Copyright © 2016 Elsevier B.V. All rights reserved.

Pubmed Link: 26780110

DOI: 10.1016/j.jcv.2016.01.002