| CTLA-4 | Cytotoxic T-lymphocyte-associated protein 4 |
| EDTA | Ethylenediaminetetraacetic acid |
| FBS | Fetal bovine serum |
| FMO | Fluorescence-minus-one |
| FOXP3 | Forkhead box P3 |
| FOXP3-FL | Full-length FOXP3 isoform |
| FOXP3-Δ2 | Exon-2-deficient FOXP3 isoform |
| FSC-A | Forward scatter area |
| FSC-H | Forward scatter height |
| GRCh38 | Genome Reference Consortium Human Build 38 |
| IL-2 | Interleukin-2 |
| IPEX | Immunodysregulation, polyendocrinopathy, enteropathy, X-linked syndrome |
| mRNA | Messenger RNA |
| NK | Natural killer |
| PBMC | Peripheral blood mononuclear cell |
| PBS | Phosphate-buffered saline |
| PD-1 | Programmed cell death protein 1 |
| PD-L1 | Programmed death-ligand 1 |
| SEM | Standard error of the mean |
| SSC-A | Side scatter area |
| TCR | T-cell receptor |
| Treg | Regulatory T cell |