Episilvestrol is a derivative of silvestrol, isolated from the fruits and twigs of Aglaia silvestris, and is a specific eIF4A-targeting translation inhibitor, with antitumor activity.
BTM-3528 is an activator of the mitochondrial protease OMA1 and mediates excessive activation of the mitochondrial integrated stress response (ISR). BTM-3528 stimulates OMA1-dependent DELE1 and OPA1 cleavage and mitochondrial fragmentation. BTM-3528 activates eIF2α kinase HRI, inducing cell growth arrest and apoptosis. BTM-3528 has anticancer activity against multiple DLBCL cell lines and has in vivo inhibitory potency in a mouse model xenografted with human DLBCL SU-DHL-10 cells[1].
Briciclib is a water soluble derivative of ON 013100, and has the potential in targeting eIF4E for solid cancers.
4E2RCat is an inhibitor of eIF4E-eIF4G interaction with an IC50 of 13.5 μM.
Zotatifin (eFT226) is a potent, selective, and well-tolerated eIF4A inhibitor. Zotatifin promotes eIF4A binding to specific mRNA sequences with recognition motifs in the 5’-UTRs (IC50=2 nM) and interferes with the assembly of the eIF4F initiation complex[1]. Zotatifin shows robust antiviral effects, it effectively reduces viral infectivity by inhibiting SARS-CoV-2 NP protein biogenesis (IC90=37 nM)[2]. Zotatifin induces cell apoptosis[1].
eIF4A3-IN-1 (compound 53a) is a selective eukaryotic initiation factor 4A3 (eIF4A3) inhibitor (IC50=0.26 μM; Kd=0.043 μM), which binds to a non-ATP binding site of eIF4A3 and shows significant cellular nonsense-mediated RNA decay (NMD) inhibition at 10 and 3 μM and can be as a probe for further study of eIF4A3, the exon junction complex (EJC), and NMD[1].
eIF4A3-IN-8 is a selective ATP-competitive eukaryotic initiation factor 4A3 (eIF4A3) inhibitor. eIF4A3-IN-8 can serve as a valuable chemical probe to elucidate the detailed function of eIF4A3 and EJC (exon junction complex)[1].
eIF4A3-IN-15 (compound 52) is a silvestrol (HY-13251) analogue. eIF4A3-IN-15 interferes the assembling of eIF4F translation complex with EC50s of 11, 700 and 120 nM for myc-LUC, tub-LUC and the growth inhibition for MBA-MB-231 cells. eIF4A3-IN-15 can be used for the research of human cancer pathogenesis[1].
CR-1-31-B is a potent eIF4A RNA helicase inhibitor. CR-1-31-B blocks MUC1-C translation in response to growth factor stimulation in breast cancer cells[1].
EIF2α activator 2 (Compound 1) is an activator of eukaryotic initiation factor 2 alpha (eIF2α) phosphorylation. EIF2α activator 2 exhibits high potency in SRB cell proliferation assays (IC50=0.46 μM). EIF2α activator 2 exhibits antiproliferative activity againist K562 and PBMC cells with IC50s of 4.79 and 10.52 μM, respectively[1].
eIF4A3-IN-14 (compound 51) is a silvestrol (HY-13251) analogue. eIF4A3-IN-14 interferes the assembling of eIF4F translation complex with EC50s of 40 and 50 nM for myc-LUC and the growth inhibition for MBA-MB-231 cells. eIF4A3-IN-14 can be used for the research of human cancer pathogenesis[1].