| BTLA | B- and T-lymphocyte attenuator |
| CTLA-4 | cytotoxic T-lymphocyte-associated antigen 4 |
| FASL | FAS ligand |
| HCC | hepatocellular carcinoma |
| HI | Hepatic intrasinusoidal |
| ILT2 | immunoglobulin-like transcript 2 |
| IFN-γ | interferon-γ |
| KIRs | killer-cell immunoglobulin-like receptors |
| LDH | lactate dehydrogenase |
| NK | natural killer |
| PB | peripheral blood |
| PD-1 | programmed cell death protein 1 |
| TRAIL | TNF-related apoptosis-inducing ligand |
| TNF-α | tumor necrosis factor-α |