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Field of application
BSJ-04-122 is a potent, selective, covalent dual MKK4/7 inhibitor with IC50 of 4/181 nM, displays excellent kinome selectivity;
BSJ-04-122 covalently targets a conserved cysteine (Cys247 for MKK4, and Cys261 for MKK7) located before the DFG motif.
SJ-04-122 exhibits potent cellular target engagement and induces robust target-specific downstream effects.
In breast cancer cell lines, BSJ-04-122 potently inhibited JNK phosphorylation, BSJ-04-122 significantly decreased levels of T183/Y185 pJNK at 5 uM, resulting in complete inhibition at 10 uM in MDA-MB-231 cells.
The combination of the dual MKK4/7 inhibitor BSJ-04-122 with a selective, covalent JNK inhibitor (JNK-IN-8) demonstrated an enhanced antiproliferative activity against triple-negative breast cancer cells.
HRX-0233 (HRX0233) is a potent and selective inhibitor of MAP2K4 (MKK4), a kinase involved in the stress-activated protein kinase (SAPK) signaling pathway. MAP2K4 plays a role in regulating cellular responses to stress, apoptosis, and tumorigenesis. HRX-0233 has shown particular promise in KRAS-mutant cancers, where it exhibits synergistic effects with RAS inhibitors, making it a potential candidate for combination therapy in these difficult-to-treat cancers.
Darizmetinib (HRX-0215, HRX0215) is a potent, selective inhibitor of MKK4 (MAP2K4/SEK1), shows potential for promoting liver regeneration or reducing or preventing hepatocyte death.
INR119 is a small molecule allosteric MAPKK (MAP2K, MEK1/2) inhibitor, binds fission yeast homologue Wis1 near C458 and protects Wis1 from inactivation by low levels of H2O2 in vitro.INR119 pretreatment strongly potentiates the Wis1 response to low H2O2 in vivo.Phosphorylation of Sty1 depends entirely on activated Wis1, and the INR119-induced enhancement of Sty1 pathway activation upon H2O2 stress requires the upstream activation of Wis1 through the MAPKKKs.
PD318088 is a non-ATP competitive allosteric MEK1/2 inhibitor, binds simultaneously with ATP in a region of the MEK1 active site that is adjacent to the ATP-binding site.
KZ-001 is a highly potent and selective MEK 1/2 inhibitor with IC50 values of 7.4/64 nM, respectively, exhibits greater inhibition against BRAF- and KRAS-mutant tumor cells than AZD6244.
DS03090629 is a potent, selective, ATP-competitive and orally available MEK1/2 inhibitor, shows high affinity for the MEK protein regardless of its phosphorylation status (npMEK (inactive) Kd=0.11 nM, and pMEK (active) Kd=0.15 nM).
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