Catalog No.S7038 Synonyms: BU-4061T,Aids010837
Molecular Weight(MW): 554.72
Epoxomicin is a selective proteasome inhibitor with anti-inflammatory activity, inhibits primarily the CH-L activity of the 20S proteasome, while T-L and PGPH catalytic activities are also inhibited at 100- and 1000-fold reduced rate.
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Epoxomicin did not inhibit the EV71-induced PMLIII and IV degradation. Cell lysates were prepared from 293T cells infected or mock-infected with EV71 at a multiplicity of infection (MOI) of 5 for 24 or 48 h in the presence or absence of epoxomicin (1 µM). At 24 h post-infection (p.i.) (left panels) or 48 h p.i. (right panels), 60 μg of protein extracted from each treatment were separated on SDS-PAGE and analyzed by performing a Western blot analysis using antibodies specific for PMLIII and IV (top panels), VP1 (middle panels), and GAPDH, which served as an internal loading control (bottom panels). PMLIII and IV were quantified by performing densitometry and are presented relative to the mock infection, which was set as 1.0. VP1 was quantified and is presented relative to that in the EV71-infected 293T cells at 24 h p.i. (left panels) or 48 h p.i. (right panels). The density value of VP1 without epoxomicin is set as 1.0. The experiment was performed three times, and representative results are shown.
Front Immunol, 2018, 9:1268. Epoxomicin purchased from Selleck.
Immature monocyte-derived dendritic cells (moDCs) were incubated 30 min prior and during the 3 h antigen (gp100/AZN-D1) pulse with 0.1% DMSO (vehicle), chloroquine (25 µM), MG132 (10 µM), epoxomicin (0.25 µM), and cathepsin S inhibitor (5 µM). Groups are significantly different compared to AZN-D1.
Front Immunol, 2018, 9:1231. Epoxomicin purchased from Selleck.
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Choose Selective Proteasome Inhibitors
|Description||Epoxomicin is a selective proteasome inhibitor with anti-inflammatory activity, inhibits primarily the CH-L activity of the 20S proteasome, while T-L and PGPH catalytic activities are also inhibited at 100- and 1000-fold reduced rate.|
|Features||Epoxomicin is a natural product isolated from an Actinomycetes species.|
Epoxomicin covalently binds to the LMP7, X, MECL1, and Z catalytic subunits of the proteasome. Epoxomicin (100 nM) results in a 30-fold increase in the levels of p53 protein, a known target of the proteasome, in HUVECs. Epoxomicin (10 μM) results in the accumulation of ubiquitinated proteins in HeLa cells. Epoxomicin (10 μM) inhibits IκBα degradation by 10-fold in HeLa cells. Epoxomicin (10 μM) produces a significant dose-dependent reduction in TNF-α-stimulated NF-κB DNA-binding activity in HeLa cells.  Epoxomicin inhibits proliferating of EL4 lymphoma cells with biotinylated chimerae with IC50 of 4 nM.  Epoxomicin (1 μM) leads to a reduction of LCMV GP33 presentation and an enhancement of GP276 presentation.  Epoxomicin inhibits growth of Babesia bigemina with IC50 of 4 nM. Epoxomicin (0.5 mg/kg and 0.05 mg/kg) results in peak parasitemia levels of 34.8% and 42.3% in B. microti.  Epoxomicin (100 nM) decreases the total parasitemia by 78%, 86% and 77% in Plasmodium falciparum. Epoxomicin (10 μM) inhibits gametogenesis and exflagellation as well as development into oocysts of anopheles mosquitoes. 
|In vivo||Epoxomicin (0.58 mg/kg per day) reduces the CS response by 44% relative to the control group of mice treated with vehicle alone. Epoxomicin (2.9 mg/kg) potently inhibits the irritant-associated inflammatory response by 95% when ear edema measurements are made 24 hours postchallenge in mice. |
-  Meng L, et al. Proc Natl Acad Sci U S A, 1999, 96(18), 10403-10408.
-  Kim KB, et al. Bioorg Med Chem Lett, 1999, 9(23), 3335-3340.
-  Schwarz K, et al. J Immunol, 2000, 164(12), 6147-6157.
|In vitro||DMSO||100 mg/mL (180.27 mM)|
|Ethanol||100 mg/mL (180.27 mM)|
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