ENTPDase inhibitors—non-nucleotide analogs
| Derivatives class | Inhibitors | IC50a or Kib(µM) | Specificity | Applications | Experimental context |
|---|---|---|---|---|---|
| Polyoxometalates (POMs)[77–79] | POM-1 | 0.8000b | N1 > N3 >> N2 | Potential anticancer, cardiprotection.ENTPDases functional studies. | Inhibition assays with recombinant protein and in vitro assays using metastatic cells. |
| PSB-POM142 (POM-5) | 0.0039b | N1 >> N2 > N3 | |||
| Anthraquinone derivatives[73, 82] | PSB-069 | 15.70a | N1 > N2 > N3 | Therapeutic potential for treating neurodegenerative and neuroinflammatory diseases and inflammation. | In vitro inhibition assays using capillary electrophoresis (CE) and the malachite green assay (MG). |
| PSB-071 | 12.80a | N2 > N3 >> N1 | |||
| PSB-06126 | 1.500a | N3 | |||
| PSB-16131 | 0.539a | N2 | |||
| PSB-2020 | 0.551a | N2 | |||
| PSB-1011 | 0.390a | N3 | |||
| PSB-2046 | 0.723a | N3 | |||
| Tryptamine-derived Schiff bases[69] | C# 1 | 0.030b | N1 | Potential for use in the treatment of cancer and thrombosis. | Inhibition assays with recombinant enzymes (MG) and molecular docking. |
| C# 4 | 0.080b | N1 | |||
| C# 5 | 0.071b | N3 > N1 = N8 | |||
| C# 13 | 0.280b | N8 | |||
| C# 14 | 0.170b | N3 > N1 > N8 | |||
| C# 22 | 0.490b | N8 | |||
| Thiadiazole pyrimidones[66] | 8b | 0.04b | N1 | Study of insulin secretion and purinergic modulation. | Inhibition assays with recombinant human enzymes (MG), docking studies, and in vitro tests on pancreatic islets. |
| 8c | 0.03b | N1 > N3 >> N8 | |||
| 8f | 0.03b | N1 | |||
| 8i | 0.17b | N2 > N1 | |||
| 8j | 0.02b | N1 > N2 | |||
| 8k | 0.07b | N2 | |||
| 8m | 0.16b | N3 >> N1 | |||
| Carboxamides[70] | 2a | 1.60a | N8 > N2 > N3 > N1 | Treatment of type 2 diabetes, inflammatory and metabolic disorders, and isoform-specific studies. | Inhibition assays with recombinant human enzymes (MG), in vitro tests on pancreatic islets, and molecular docking studies. |
| 2b | 2.82a | N3 | |||
| 2d | 0.15a | N2 > N1 | |||
| 2f | 0.70a | N1 | |||
| 2h | 0.12a | N1 | |||
| 2i | 1.46a | N1 > N3 | |||
| Quinoline derivatives[80] | 2c | 0.86a | N3 > N8 > N1 | Therapeutic potential to treat cancer and other diseases associated with ENTPDase overexpression. | Inhibition assays with recombinant human enzymes (malachite green). |
| 2h | 0.36a | N3 > N1 > N2 > N8 | |||
| 3b | 0.55a | N1 > N2 | |||
| 3f | 0.20a | N1 > N3 | |||
| 4 | 0.51a | N3 > N1 > N2 | |||
| 5c | 0.65a (b) | N8 | |||
| Sulfopolysac-charides[85] | Compound 5 | 1.72b | N1, but also inhibited NPP1NPP1 > N1 | Therapeutic potential to treat cancer. | Inhibition assays on enzymes (NTPDases and NPPs) and U87 glioblastoma cells using CE and MG. |
| Compound 6 | 0.408b | ||||
| Compound 7 | 12.3b | ||||
| Tienotetraidropirimidina derivatives[64] | Compound 32 | 45.2a | Dual inhibitor for N1 (CD39) and CD73 | Therapeutic potential to treat cancer. | Inhibition assays with recombinant enzymes using CE and MG. |
| Thiadiazole amide derivatives[83] | 5a | 0.05a | N1 >> N2 > N8 | Potential in cancer immunotherapy and the treatment of immunological and thrombotic diseases. | Inhibition assays with recombinant human enzymes (MG) and molecular docking studies. |
| 5b | 0.06a | N2 > N1 | |||
| 5c | 0.08a | N2 > N1 | |||
| 5e | 0.05a | N8 >> N1 > N3 >> N2 | |||
| 5g | 0.04a | N2 >> N8 | |||
| 5j | 0.07a | N8 >> N2 > N1 > N3 | |||
| Glicinatos de tienopirimidina[84] | 3j | 0.11a | N1 | Potential in cancer immunotherapy and the treatment of inflammatory diseases, diabetes, and thrombosis. | Inhibition assays with recombinant human enzymes (MG) and molecular docking studies. |
| 3k | 3.00a | N3 | |||
| 3l | 1.00a | N8 >> N1 | |||
| 3n | 0.40a | N2 | |||
| 4 | 0.13a | N2 | |||
| Protein kinase inhibitors[87] | Certinib | 11.3a | N1 >> N3 = N8 | Potential in cancer immunotherapy and a basis for the development of new inhibitors. | Inhibition assays with recombinant and native enzymes (tumor cell cultures) using CE and MG. |
| Sulfamoyl benzamides[86] | 2d | 0.28a | N8 | Potential in cancer immunotherapy and the treatment of type 2 diabetes and thrombosis. | Inhibition assays with recombinant human enzymes (MG) and molecular docking studies. |
| 3f | 0.27a | N2 > N3 | |||
| 3i | 0.72a | N3 > N1 | |||
| 3j | 0.29a | N2 > N3 | |||
| 4d | 0.13a | N2 > N3 > N8 |
N1, N2, N3, and N8 refer to NTPDases 1, 2, 3, and 8, respectively. CE: capillary electrophoresis; MG: malachite green method; ENTPDases: ectonucleoside triphosphate diphosphohydrolases; CD39: cluster of differentiation 39; NPP: nucleotide pyrophosphatase/phosphodiesterase