BCL2 and non-small cell lung carcinoma: On the other hand, it reverses drug resistance through mitochondrial-mediated apoptosis in human NSCLC cisplatin-resistant A549/DDP cells, via cytochrome c release, caspase-3 activation, Bcl-2 associated agonist of cell death (Bad) up-regulation and Bcl-2 down-regulation [761].