Repression of Human Papillomavirus Oncogene Expression under Hypoxia is Mediated by PI3K/mTORC2/AKT Signaling

Cornerstones of the regulatory phenomena observed in hypoxic HPV-positive cancer cells are: (i) hypoxia blocks E6/E7, an effect that can be counteracted by (ii) AKT inhibition and by (iii) high glucose supply. To gain further insights into the underlying regulatory circuits, mass spectrometry-based quantitative proteome analyses were performed comparing normoxic and hypoxic SiHa cells and assessing their response towards AKTi VIII and 25 mM glucose under hypoxia