What question did this study set out to answer?

This research aims to understand how different tissues respond to HPV16 oncogene expression and associated pathways.

Tissue context shapes distinct premalignant outcomes in a HPV16 E6/E7-mutant Pik3ca transgenic mouse model

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Randomized trial examines tissue-specific effects of HPV oncogenes on premalignant lesions, indicating varying outcomes based on local context.

This research aims to understand how different tissues respond to HPV16 oncogene expression and associated pathways.
Developed a double-inducible transgenic mouse model with temporal control of HPV16 E6/E7 expression.
Assessed dysplastic outcomes in anal and oral mucosa over a six-month period.
Combined HPV E6/E7 expression with Pik3caH1047R knock-in to evaluate PI3K pathway activation.
HPV16 E6/E7 expression caused low-grade lesions in the anal canal and severe dysplasia in the tongue.
PI3K activation alone led to mild dysplasia, but combined with E6/E7 increased severity in the tongue.
No invasive carcinoma was observed after six months in any tissue.

Ayre et al. (2026) studied this question.

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Randomized trial examines tissue-specific effects of HPV oncogenes on premalignant lesions, indicating varying outcomes based on local context.