Figure 2.

NAC effect on cell morphology of sinuleptolide-treated oral cancer and oral normal cells.

Notes: NAC pretreatment condition was 4 mM for 1 h. No NAC pretreatment was kept in culture medium for 1 h. Cells were incubated with 0, 3, 6, 12, and 24 µg/mL of sinuleptolide for 24 h. (A and B) Cell morphology of sinuleptolide-treated oral cancer cells (Ca9-22) and oral normal cells (HGF-1). Cell morphology was observed under 100× magnification (scale bar is 100 µm).

Abbreviation: NAC, N-acetylcysteine.