Fig. 6From: Pterocellin A isolated from marine bryozoan Pterocella vesiculosa is cytotoxic to human HeLa cells via mitochondrial apoptotic processes a Changes in cell morphology after treatment with pterocellin A at 2000 ng/mL. Black arrows pointing at examples of apoptotic features. (Photos taken at ×200 magnification using an inverted Nikon eclipse TS100 microscope with a Nikon COOLPIX 4500 camera). b DIC images of a single apoptotic cell from the same experiment. a 1 Growth control. 2 Cells treated at 1000 ng/mL for 6 h. (Photos were obtained from an Olympus FV1000 confocal microscope at ×400 magnification)Back to article page