| SCLC | small cell lung cancer |
| NSCLC | non-small cell lung cancer |
| NRT | nicotine replacement therapy |
| nAChRs | nicotinic acetylcholine receptors |
| EMT | epithelial to mesenchymal transition |
| GSH | glutathione |
| NADPH | nicotinamide adenine dinucleotide phosphate |
| ROS | reactive oxygen species |
| MMC | mitomycin C |
| CPT | camptothecin |
| Dox | doxorubicin |
| FACS | fluorescence-activated cell sorting |