| UA | ursolic acid |
| AGO2 | Argonaute-2 |
| CSC | cancer stem cell |
| SP | side population |
| ABCG2 | ATP-binding cassette superfamily G member 2 |
| EMT | epithelial-to-mesenchymal transition |
| miRNA | microRNA |
| PTEN | phosphatase and tensin homologue on chromosome 10 |
| qRT-PCR | quantitative reverse transcription PCR |