| AVOs | Acidic Vesicular Organelles |
| ANOVA | Analysis of variance |
| ATCC | American Type Culture Collection |
| Baf | bafilomycin A1 |
| CI | Combination index |
| DNA | Deoxyribonucleic acid |
| DSMZ | German Collection of Microorganisms and Cell Cultures |
| DMEM | Dulbecco’s modified Eagle’s medium |
| DMSO | Dimethyl sulfoxide |
| ECACC | European Collection of Authenticated Cultures |
| FBS | Fetal bovine serum |
| FDA | Food and Drug Administration |
| GBM | Glioblastoma |
| GI | growth inhibition |
| g | Gram |
| IC50, | Half maximal inhibitory concentration |
| IngC, | ingenol-3-dodecanoate; I3A, ingenol-3-angelate |
| IDB | ingenol 3,20-dibenzoate |
| mL | Milliliter |
| MTS | 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H91tetrazolium) |
| NCI | National Cancer Institute |
| PKC | Protein kinase C |
| P/S | Penicillin/streptomycin solution |
| RPMI-1640 | Roswell Park Memorial Institute |
| SD | Standard deviation |
| STR | Short tandem repeat |
| TMZ | temozolamide |
| WHO | World Health Organization |
| uM | Micromolar |