| PD-L1 | Programmed cell death ligand 1 |
| MCL | Micheliolide |
| IR | ionizing radiation |
| DMSO | Dimethyl Sulfoxide |
| STAT1 | signal transducer and activator of transcription 1 |
| IRF1 | Interferon Regulatory Factor 1 |
| DSB | DNA double strand break |
| PD-1 | programmed cell death protein 1 |
| PTL | Parthenolide |