Table 1.

HPV effects on oral cancer viability in vitro. HPV strains induced differential responses among CAL27, SCC-15 and SCC-25 cell lines. CAL27 viability was increased under all HPV experimental conditions, while SCC-15 and SCC-25 exhibited more nuanced, differential responses in cell viability to the HPV strains tested.

Cell viability	no HPV	HP16	HPV18	HPV16/18
CAL27 (% change)	73%	84% (+11%)	95% (+22%)	81% (+8%)
SCC-15 (%change)	89%	87% (-2%)	88% (-1%)	45% (-44%)
SCC-25 (% change)	80%	86% (+6%)	79% (-1%)	82% (+2%)