Figure 3From: Anti-tumour activity of longikaurin A (LK-A), a novel natural diterpenoid, in nasopharyngeal carcinomaLK-A induces apoptosis through the intrinsic caspase pathway. Expression levels of cleaved caspase-3, -9 and cleaved PARP were elevated in a dose-dependent manner in CNE1 and CNE2 cells after treated with LK-A for 48 hrs. α-tubulin served as a loading control.Back to article page