Saliva testing may allow early detection of human papillomavirus–driven head and neck cancers
Source: medicalxpress.com Author: Elsevier Cancer causing high-risk human papillomaviruses (HR-HPV) are responsible for the rising incidence of HR-HPV–driven head and neck cancers (HNC), particularly oropharyngeal cancers (OPC, or throat cancers). Investigators have determined that HR-HPV DNA can be detected in saliva in most patients with HPV-driven OPC at the time of diagnosis. This work highlights a potentially life-saving screening program based on salivary HR-HPV DNA testing for early cancer detection and patient monitoring. Their findings appear in The Journal of Molecular Diagnostics. "Despite the upsurge in HPV-driven HNC, there are no early detection methods or screening strategies for this cancer type, unlike cervical cancer, which is caused by the same virus. Biomarkers enabling early detection, monitoring and disease prognostication are warranted to combat the rising incidence of HPV-driven OPC," observed lead investigator Chamindie Punyadeera, Ph.D., head, Saliva & Liquid Biopsy Translational Laboratory, School of Biomedical Science, Faculty of Health, Queensland University of Technology (QUT), and Translational Research Institute, Brisbane, QLD, Australia. Dr. Punyadeera and her colleagues investigated the efficacy of salivary HPV detection as a biomarker of HPV-HNC and survival patterns in patients with OPC to evaluate the utility of salivary HR-HPV as a prognostic biomarker for OPC. Saliva testing was performed on 491 patients at the time of first diagnosis of HNC and 10 patients with recurring HNC. Forty-three percent were positive for salivary HR-HPV DNA. HPV16, a high-risk strain of the virus, was detected in 92% of the HPV-positive saliva samples. The vast majority of HPV-HNC had arisen [...]