Fig. 4From: The pyrazole derivative of usnic acid inhibits the proliferation of pancreatic cancer cells in vitro and in vivoDerivative 5 but not parental UA induces massive vacuolization of pancreatic cancer cells. Morphology of PANC-1 and Mia PaCa-2 cells examined under TEM. Cells were treated with DMSO (control), 5 or UA at 1 or 5 µg/mL for 24 or 48 h. Representative pictures of cells at magnifications of 2900x, 4800 × or 6800 × are shownBack to article page