Eukaryotic Initiation Factor (eIF) Inhibitor

GCN2iB is an ATP-competitive, selective GCN2 inhibitor with an IC₅₀ of 2.4 nM. GCN2iB inhibits the activation of the GCN2 pathway and upregulates GPX4. GCN2iB enhances the anticancer effect of ASNase against acute lymphoblastic leukemia. GCN2iB increases left ventricular ejection fraction, while reducing fasting blood glucose and myocardial fibrosis. GCN2iB can be used in research related to acute lymphoblastic leukemia, acute myeloid leukemia and diabetic cardiomyopathy.

GCN2-IN-1 is a potent general control nonderepressible 2 kinase (GCN2) inhibitor with an IC₅₀ of <0.3 μM in the enzyme assay and an IC₅₀ of 0.3-3 μM in the cell assay.

4EGI-1 is an inhibitor of eIF4E/eIF4G interaction, with a K_d of 25 μM against eIF4E binding.

PROTAC MNK1 degrader-1 is a selective MNK1 PROTAC degrader with a DC₅₀ of 11.92 nM, and a D_max > 96% in MV4-11 cells. PROTAC MNK1 degrader-1 significantly reduces p-eIF4E (IC₅₀: 22.07 nM), induces apoptosis, and arrests the cell cycle at the G1 phase. PROTAC MNK1 degrader-1 has potent antitumor activity. PROTAC MNK1 degrader-1 has robust antileukemic efficacy in MV4-11 xenograft mice model with acceptable drug safety.

Rocaglamide (Roc-A) is isolated from the genus Aglaia and can be used for coughs, injuries, asthma and inflammatory skin diseases. Rocaglamide is a potent inhibitor of NF-κB activation in T-cells. Rocaglamide is a potent and selective heat shock factor 1 (HSF1) activation inhibitor with an IC₅₀ of ~50 nM. Rocaglamide inhibits the function of the translation initiation factor eIF4A. Rocaglamide also has anticancer properties in leukemia.

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. Zotatifin shows robust antiviral effects, it effectively reduces viral infectivity by inhibiting SARS-CoV-2 NP protein biogenesis (IC₉₀=37 nM). Zotatifin induces cell apoptosis.

Silvestrol is a eukaryotic translation initiation factor 4A (eIF4A) inhibitor isolated from Agave americana Linn.. Silvestrol induces autophagy and caspase-mediated apoptosis.

HC-7366 (GCN2 modulator-1) is an orally effective GCN2 activator. HC-7366 can effectively compete and occupy the ATP binding pocket of GCN2, with its IC₅₀ being 72 nM. This binding triggers the conformational activation of GCN2, leading to the upregulation of downstream signals (such as ATF4, ASNS) in the integrated stress response (ISR) pathway, ultimately exerting anti-tumor effects. HC-7366 also has inhibitory activity against ZAK, with its IC₅₀ being 47 nM. HC-7366 can be used for research on fibrosarcoma and acute myeloid leukemia.

CR-1-31-B is a synthetic rocaglate and a potent eIF4A inhibitor. CR-1-31-B exhibits powerful inhibitory effects over eIF4A by perturbing the interaction between eIF4A and RNA, sequentially impeding initiation during protein synthesis. CR-1-31-B perturbs association of Plasmodium falciparum eIF4A (PfeIF4A) with RNA. CR-1-31-B induces apoptosis of neuroblastoma and gallbladder cancer cells.

4E1RCat is an inhibitor of cap-dependent translation, and inhibits eIF4E:eIF4GI interaction, with an IC₅₀ an of ～4 μM.

eIF4A3-IN-1 is a selective eIF4A3 inhibitor (IC₅₀: 0.26 μM; K_d: 0.043 μM) with cellular nonsense-mediated RNA decay (NMD) inhibitory activity. eIF4A3-IN-1 can specifically bind to the non-ATP binding site of eIF4A3. eIF4A3-IN-1 has anti-tumor and analgesic activities.

SBI-0640756 (SBI-756) is an inhibitor of eIF4G1 and disrupts the eIF4F complex.

GCN2-IN-6 (Compound 6d) is a potent, and orally available GCN2 inhibitor confirmed by in-house enzymatic (IC₅₀ of 1.8 nM) and cellular assays (IC₅₀ of 9.3 nM). GCN2-IN-6 is also a eIF2α kinase PERK inhibitor with an IC₅₀ of 0.26 nM (in enzymatic assay) and 230 nM (in cells). GCN2-IN-6 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

eIF4A3-IN-2 is a highly selective and noncompetitive eukaryotic initiation factor 4A-3 (eIF4A3) inhibitor with an IC₅₀ of 110 nM.

Ganoderma Lucidum/Reishi Extract is a Ganoderma lucidum extract. Ganoderma Lucidum/Reishi Extract reduces the expression of c-Myc, BCL-2, BCL-XL, TERT, PDGFB, eIF4G, Survivin, β-catenin, and eIF4E. Ganoderma Lucidum/Reishi Extract downregulates the gene expression of MMP-9. Ganoderma Lucidum/Reishi Extract upregulates the expression of IL8. Ganoderma Lucidum/Reishi Extract is applicable to the research of inflammatory breast cancer. Ganoderma Lucidum is used in the research of various diseases, such as allergy, arthritis, hypertension, neurasthenia, inflammation, and cancer.

eIF4E-IN-2 is a potent inhibitor of eukaryotic initiation factor 4e (eIF4e) with an IC₅₀ of 13 nM. eIF4E-IN-2 inhibits MDA-MB-361 cells proliferation. eIF4E-IN-2 can be used for the study of breast cancer.

Maduramicin ammonium (Maduramycin ammonium) is isolated from the actinomycete Actinomadura rubra. Maduramicin ammonium (Maduramycin ammonium) is an anticoccidial agent for the the treatment of Eimeria spp., E. adenoeides, E. gallopavonis, and E. dispersa infection. Maduramicin ammonium (Maduramycin ammonium) induces cell apoptosis in chicken myocardial cells via intrinsic and extrinsic pathways.

Briciclib (ON 014185) is a eukaryotic translation initiation factor 4E (eIF4E) inhibitor. Briciclib exhibits broad-spectrum anti-cancer activity, including in mantle cell leukemia, breast cancer, gastric cancer, and esophageal cancer cells. Briciclib reduces the expression of cyclin D1 and c-Myc, and enhances the expression of P53 and Cleaved Caspase 3 pro-apoptotic proteins. Briciclib can be used for the study of hematological system tumors and solid tumors.

GCN2-IN-7 (compound 39) is an orally active and selective general control nonderepressible 2 (GCN2) inhibitor (IC₅₀=5 nM). GCN2-IN-7 shows anti-tumor activity in vivo.

4E2RCat is an inhibitor of eIF4E-eIF4G interaction with an IC₅₀ of 13.5 μM.