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Characterizing Human Papillomavirus Associated Oral Epithelial Dysplasia, Damir Rosic Feb 2023

Characterizing Human Papillomavirus Associated Oral Epithelial Dysplasia, Damir Rosic

Electronic Thesis and Dissertation Repository

The role of high-risk human papillomavirus (HR-HPV) is well documented in oropharyngeal squamous cell carcinoma and cervical cancer. Although a subset of oral dysplastic lesions have been associated to HPV infection as well, there is currently limited data characterizing these lesions. We identified HPV-associated oral epithelial dysplasia (HPV-OED) through screening for histopathological features of HPV and p16INK4a immunoreactivity. Transcriptionally active infections were confirmed by performing RT-qPCR to identify E6 mRNA expression. We identified 82 cases of confirmed HPV-OED that showed a strong predilection for male patients and anatomical sites such as floor of mouth and ventral tongue. This group had …


Evaluating The Utility Of Protein Biomarker, S100a7, And Diagnostic Test, Straticyte, In Predicting The Progression Of Oral Dysplasia, Lachlan Mclean Dec 2019

Evaluating The Utility Of Protein Biomarker, S100a7, And Diagnostic Test, Straticyte, In Predicting The Progression Of Oral Dysplasia, Lachlan Mclean

Electronic Thesis and Dissertation Repository

Five-year survival of oral cancer has remained relatively unchanged despite advancements in treatment, mostly because diagnosis is often made at an advanced stage of disease. The progression of dysplasia to oral cancer often follows a stepwise progression. Histopathology is considered the ‘gold standard’ for diagnosing dysplasia and lesions at a high risk of progression to oral cancer, but lends itself to subjectivity. The protein biomarker, S100A7, in oral dysplasia and squamous cell carcinoma has shown some predictive value for the transformation of dysplasia to cancer. Straticyte, a diagnostic test utilizing S100A7 to predict the probability of progression of oral dysplasia …