Objectives/Hypothesis: The accurate diagnostic assessment of clinically relevant human papillomavirus (HPV) infections in patients with head and neck squamous cell carcinoma represents an urgent unmet medical need. The aim of this study was to determine feasibility, accuracy, and clinical significance of HPV16/18 E6 oncoprotein detection on cytological specimens from oropharyngeal squamous cell carcinoma (OPSCC) and neck lymph node metastasis of SCC from unknown primary tumor (CUP) via a protein immunochromatographic assay. Study Design: Cross-sectional study. Methods: Cytological specimens from primary tumor and neck metastases were collected from 34 patients with OPSCC or CUP and applied to a lateral flow format test that detects HPV16 and HPV18 E6 oncoproteins. E6 oncoprotein positivity or negativity in these specimens was compared to the specimens' “HPV-driven” reference status, defined by presence of HPV-DNA in combination with p16INK4a overexpression and/or HPV E6 seropositivity. Results: Eighteen of 29 OPSCC (62%) and three of five CUP (60%) were HPV-driven according to our reference method. The E6 oncoprotein lateral flow test had a sensitivity of 94% (95% CI: 70%–100%) and a specificity of 100% (95% CI: 66%–100%) on primary tumor, and a sensitivity of 88% (95% CI: 64%–99%) and a specificity of 100% (95% CI: 74%–100%) on neck metastases. Test agreement between the E6 lateral flow test and the clinical reference method, HPV-DNA plus p16INK4a was excellent, both for primary lesion and neck metastases. Conclusions: We found the detection of HPV16/18 E6 oncoproteins to be a feasible, highly reliable, and low-invasive method to assess “HPV-driven” status in OPSCC and CUP. Level of Evidence: II Laryngoscope, 2020.

Detection of HPV16/18 E6 Oncoproteins in Head and Neck Squamous Cell Carcinoma Using a Protein Immunochromatographic Assay

Giancarlo Tirelli;Elisa Dal Cin;Margherita Tofanelli;Stefania Rigo;Paolo Boscolo‐Rizzo
2021

Abstract

Objectives/Hypothesis: The accurate diagnostic assessment of clinically relevant human papillomavirus (HPV) infections in patients with head and neck squamous cell carcinoma represents an urgent unmet medical need. The aim of this study was to determine feasibility, accuracy, and clinical significance of HPV16/18 E6 oncoprotein detection on cytological specimens from oropharyngeal squamous cell carcinoma (OPSCC) and neck lymph node metastasis of SCC from unknown primary tumor (CUP) via a protein immunochromatographic assay. Study Design: Cross-sectional study. Methods: Cytological specimens from primary tumor and neck metastases were collected from 34 patients with OPSCC or CUP and applied to a lateral flow format test that detects HPV16 and HPV18 E6 oncoproteins. E6 oncoprotein positivity or negativity in these specimens was compared to the specimens' “HPV-driven” reference status, defined by presence of HPV-DNA in combination with p16INK4a overexpression and/or HPV E6 seropositivity. Results: Eighteen of 29 OPSCC (62%) and three of five CUP (60%) were HPV-driven according to our reference method. The E6 oncoprotein lateral flow test had a sensitivity of 94% (95% CI: 70%–100%) and a specificity of 100% (95% CI: 66%–100%) on primary tumor, and a sensitivity of 88% (95% CI: 64%–99%) and a specificity of 100% (95% CI: 74%–100%) on neck metastases. Test agreement between the E6 lateral flow test and the clinical reference method, HPV-DNA plus p16INK4a was excellent, both for primary lesion and neck metastases. Conclusions: We found the detection of HPV16/18 E6 oncoproteins to be a feasible, highly reliable, and low-invasive method to assess “HPV-driven” status in OPSCC and CUP. Level of Evidence: II Laryngoscope, 2020.
26-ott-2020
Pubblicato
https://onlinelibrary.wiley.com/doi/10.1002/lary.29184
File in questo prodotto:
File Dimensione Formato  
lary.29184.pdf

non disponibili

Tipologia: Documento in Versione Editoriale
Licenza: Digital Rights Management non definito
Dimensione 583.71 kB
Formato Adobe PDF
583.71 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2976502
Citazioni
  • ???jsp.display-item.citation.pmc??? 3
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 4
social impact