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
ICR: Conceptualization, Investigation, Writing—original draft, Writing—review & editing. ALdA: Writing—original draft. VdAR: Writing—original draft. MSLL: Writing—original draft. JLRF: Conceptualization, Writing—review & editing, Supervision. All authors read and approved the submitted version.
The authors declare that they have no conflicts of interest.
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The authors gratefully acknowledge the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the fellowship grants awarded to JLRF and ICR, which supported this study. This study was sponsored in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES) [001]; Fundação de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG) [BPD-00498-22]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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