| ADA | adenosine deaminase CRISPR/Cas9: clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 |
| ZFNs | zinc finger nucleases |
| TALEN | transcription activation-like effector nuclease |
| CAR-T | chimeric antigen receptor– T |
| AAVs | adeno-associated viruses |
| Ads | adenoviruses |
| LVs | lentiviruses |
| SMA | spinal muscular atrophy |
| SMN1 | survival motor neuron 1 |
| aHUS | atypical hemolytic uremic syndrome |
| Kb | kilobases |
| FGFR-1 | fibroblast growth factor receptor 1 |
| c-Met | hepatocyte growth factor receptor |
| ITR | inverted terminal repeat |
| AAV2 | AAV serotype 2 |
| Nabs | neutralizing antibodies |
| dsDNA | double-stranded DNA |
| CAR | coxsackie and adenovirus receptor |
| DSG-2 | desmoglein-2 |
| CAV-2 | canine adenovirus type 2 |
| OVs | oncolytic viruses |
| HAd2 | human adenovirus serotypes 2 |
| CRAds | conditionally replicating adenoviruses |
| ICPs | immune checkpoints |
| CTLA-4 | cytotoxic T-lymphocyte-associated protein 4 |
| PD1 | programmed cell death 1 |
| PD-L1 | programmed cell death ligand 1 |
| NSCLC | non-small-cell lung cancer |
| RCC | renal cell carcinoma |
| BAd3 | bovine Ad serotype 3 |
| PAd3 | porcine Ad serotype 3 |
| HAd | human Ad |
| Ad5 | adenovirus serotype 5 |
| LTR | long terminal repeat |
| cPPT/CTS | central polypurine tract/chain termination sequence |
| RRE | Rev responsive element |
| VSV-G | vesicular stomatitis virus G protein |
| B-ALL | B-cell acute lymphoblastic leukemia |
| TDT | transfusion-dependent β-thalassemia |
| HSC | hematopoietic stem cell |
| HLA | human leukocyte antigen |
| NILVs | non-integrating LVs |
| ATMPs | advanced therapy medicinal products |
| HSV | herpes simplex virus |
| BCG | bacillus calmette-guérin |
| NMIBC | non-muscle invasive bladder cancer |
| CIS | carcinoma in situ |
| LBCL | large B-cell lymphoma |
| CALD | active cerebral adrenoleukodystrophy |
| MCL | mantle cell lymphoma |
| RBC | red blood cell |
| MLD | metachromatic leukodystrophy |
| ADA-SCID | severe combined immunodeficiency due to adenosine deaminase deficiency |
| AADC | aromatic L-amino acid decarboxylase |
| HSCT | hematopoietic stem cell transplantation |