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Oprozomib (ONX 0912, PR-047) is an orally bioavailable and selective proteasome inhibitor. Oprozomib (ONX 0912) selectively inhibited CT-L activity of both the constitutive proteasome (beta5) and immunoproteasome (LMP7) and demonstrated an absolute bioavailability of up to 39% in rodents and dogs. Oprozomib inhibits growth and induces apoptosis in MM cells resistant to conventional and bortezomib therapies. The anti-MM activity of Oprozomib (ONX 0912) is associated with activation of caspase-8, caspase-9, caspase-3, and poly(ADP) ribose polymerase, as well as inhibition of migration of MM cells and angiogenesis. Oprozomib significantly reduced tumor progression and prolonged survival in animal tumor model studies. Immununostaining of MM tumors from ONX 0912-treated mice showed growth inhibition, apoptosis, and a decrease in associated angiogenesis. Finally, Oprozomib (ONX 0912) enhances anti-MM activity of bortezomib, lenalidomide dexamethasone, or pan-histone deacetylase inhibitor.
| Molecular Weight | 532.61 |
| Formula | C25H32N4O7S |
| CAS Number | 935888-69-0 |
| Solubility (25°C) | DMSO 100 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related Proteasome Products |
|---|
| Proteasome inhibitor IX
Proteasome inhibitor IX (PS-IX; AM114) is a Chalcone derivative and a chymotrypsin-like activity of the 20S proteasome inhibitor with an IC50 value of ~1 μM. |
| NIC-0102
NIC-0102 is an orally potent proteasome inhibitor (pIC50=7.55) that specifically inhibits NLRP3 inflammasome activation.NIC-0102 showed potent anti-inflammatory effects in vivo in a DSS-induced ulcerative colitis model. In addition, NIC-0102 inhibited the production of pro-IL-1β. |
| Ac-WLA-AMC
Ac-WLA-AMC is a specific 20S constitutive proteasome β5 fluorogenic substrate. |
| Ac-Nle-Pro-Nle-Asp-AMC
Ac-Nle-Pro-Nle-Asp-AMC is a specific substrate for 26S proteasome. |
| PR-39
PR-39, a natural proline- and arginine-rich antibacterial peptide, is a noncompetitive, reversible and allosteric proteasome inhibitor. |
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