| Name | ARN-21934 |
| Description | ARN-21934 is a potent, highly selective, blood-brain barrier (BBB) penetrant inhibitor for human topoisomerase II α over β. It inhibits DNA relaxation with an IC50 of 2 μM, compared to 120 μM for Etoposide. ARN-21934 exhibits favorable in vivo pharmacokinetic properties and shows promise in anticancer research, displaying affinity for topoIIα with an IC50 of 2 μM and for topoIIβ with an IC50 of 120 μM. It demonstrates activity against human cancer cell lines including melanoma (A375: 12.6 μM, G-361: 8.1 μM), breast (MCF7: 15.8 μM), endometrial (HeLa: 38.2 μM), lung (A549: 17.1 μM), and prostate (DU145: 11.5 μM) cancer cells. Following a single intraperitoneal injection of 10 mg/kg, ARN-21934 achieves a peak plasma concentration of 0.68 μg/mL in 15 minutes, with a half-life of 149 minutes, and remains detectable in plasma and the brain for up to 360 minutes. [1] Jose Antonio Ortega, et al. Novel, Potent, and Druglike Tetrahydroquinazoline Inhibitor That Is Highly Selective for Human Topoisomerase II α over β. J Med Chem. 2020 Nov 12;63(21):12873-12886. |
| In vitro | ARN-21934 is more potent against the α isoform. ARN-21934 exhibits a small panel of human cancer cell lines such as melanoma (A375, IC50 = 12.6 μM and G-361, IC50 = 8.1 μM), breast (MCF7, IC50 = 15.8 μM), endometrial (HeLa, IC50 = 38.2 μM), lung (A549, IC50 = 17.1 μM), and androgen-independent prostate (DU145, IC50 = 11.5 μM) cancer cells[1]. |
| In vivo | ARN-21934 is able to reach the brain, with a maximum concentration of compound at 60 min, and is still present in the brain 360 min after injection. ARN-21934 (intraperitoneal injection; 10 mg/kg) reaches a maximal plasma concentration of 0.68 μg/mL after 15 min. The half-life and clearance value are 149 min in circulation and 0.116 L/(min kg)[1]. |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
| Solubility Information | DMSO : 40 mg/mL (110.97 mM), Sonication is recommended.
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| Keywords | topoisomerase IIα | Topoisomerase | Inhibitor | inhibit | DNA relaxation | ARN-21934 | ARN21934 | ARN 21934 | anticancer |
| Inhibitors Related | Berberine chloride | EIDD-1931 | Flumequine | Levofloxacin hydrochloride | Norfloxacin | Prulifloxacin | Enoxacin | Pefloxacin Mesylate | Ciprofloxacin | Ciprofloxacin monohydrochloride | Irinotecan hydrochloride trihydrate | Etoposide |
| Related Compound Libraries | Highly Selective Inhibitor Library | DNA Damage & Repair Compound Library | Bioactive Compound Library | Inhibitor Library | Anti-Aging Compound Library | Bioactive Compounds Library Max | Anti-Cancer Compound Library | Anti-Cancer Active Compound Library |
United States
