| ABCB1 | ATP Binding Cassette Subfamily B Member 1 |
| ABCB11 | ATP Binding Cassette Subfamily C Member 11 |
| ABCC10 | ATP Binding Cassette Subfamily C Member 10 |
| ABCC2 | ATP Binding Cassette Subfamily C Member 2 |
| ABCC4 | ATP Binding Cassette Subfamily C Member 4 |
| ABCC5 | ATP Binding Cassette Subfamily C Member 1 |
| ADHD | attention deficit hyperactivity disorder |
| ADORA2A | Adenosine A2A Receptor |
| AIEOP | Associazione Italiana di Ematologia e Oncologia Pediatrica |
| ALL | acute lymphoblastic leukemia |
| ALL-BFM-95 | ALL-Berlin–Frankfurt–Münster |
| Ara-G | Nelarabine |
| ara-GTP | ara-G triphosphate |
| Arg27His | amino acid arginine to histidine at codon 27 |
| BBB | blood–brain barrier |
| BiTEs | dual-specific T-cell-binding antibodies |
| CD3 | cluster of differentiation 3 |
| CDA | Cytidine Deaminase |
| CEP72 | Centrosomal Protein 72 |
| CNS | central nervous system |
| COG | Pediatric Oncology Group |
| CR | complete response |
| Cri | a complete response with incomplete cell count recovery |
| CRP | C-reactive protein |
| CRS | cytokine release syndrome |
| CSF | cerebrospinal fluid |
| CTCAE | Common Terminology Criteria for Adverse Events |
| cTNS | clinical Total Neuropathy Score |
| CYP2C8 | Cytochrome P450 Family 2 Subfamily C Member 8 |
| CYP3A4 | Cytochrome P450 Family 3 Subfamily A Member 4 |
| CYP3A5 | Cytochrome P450 Family 3 Subfamily A Member 5 |
| DCK | Deoxycytidine Kinase |
| DHFR19bp | Dihydrofolate Reductase 19 bp polymorphism |
| ENT1 | Equilibrative nucleoside transporter 1 |
| GIT1 | G Protein-Coupled Receptor Kinase Interacting ArfGAP 1 |
| GM-CSF | granulocyte-macrophage colony stimulating factor |
| GRIA1 | Glutamate Ionotropic Receptor AMPA Type Subunit 1 |
| HLA-DRB1 | Major Histocompatibility Complex Class II, DR Beta1 |
| HSCT | allogeneic hematopoietic stem cell transplant (HSCT) |
| I.V. | intravenous |
| ICANS | immune effector cell-associated neurotoxicity syndrome |
| ICE | Immune Effector Cell-Associated Encephalopathy score |
| ICH | intracranial hemorrhage |
| ICOS | Inducible T-cell costimulator |
| ID-MTX | intermediate-dose methotrexate |
| InO | Inotuzumab |
| L-ASP | L-asparaginase |
| MAP4 | Microtubule-Associated Protein 4 |
| MRD | minimal residual disease |
| MTHFR 677C>T | Methylenetetrahydrofolate Reductase polymorphism |
| MTHFR 677TT | Methylenetetrahydrofolate Reductase polymorphism |
| MTX | methotrexate |
| MTX-NT | neurotoxicity associated with methotrexate |
| NO | nitric oxide |
| NT5C2 | 5’-Nucleotidase, Cytosolic II |
| NT5C3, 5’ | Nucleotidase, Cytosolic IIIA |
| R/R | relapsed or refractory |
| RRM1 | Ribonucleotide Reductase Catalytic Subunit M1 |
| scFv | single-chain fragment variable |
| SLC19A1 | Solute Carrier Family 19 Member 1 |
| SLC5A7 | Solute Carrier Family 5 Member 7 |
| SNPs | Single nucleotide polymorphisms |
| SOS | sinusoidal obstruction syndrome |
| T-ALL | T-cell acute lymphoblastic leukemia |
| T-LBL | T-cell lymphoblastic lymphoma |
| TIT | triple intrathecal therapy |
| TUBB1 | Tubulin Beta 1 Class VI |
| TUBB2A | Tubulin Beta 2A Class IIa |
| TUBB2B | Tubulin Beta 2B Class IIb |
| TUBB3 | Tubulin Beta 3 Class III |
| TUBB4A | Tubulin Beta 4A Class Iva |
| TYMS | Thymidylate Synthetase |
| UKALL2003 trial | United Kingdom National Randomised Trial For Children and Young Adults with Acute Lymphoblastic Leukaemia and Lymphoma 2003 |
| VCR | vincristine |
| VH | heavy chain variable gene segment |
| VL | variable region |
| VIPN | vincristine-induced peripheral neuropathy |
| ZBTB1 | Zinc Finger and BTB Domain Containing 1 |