mek-1

Trametinib (GSK1120212) is a MEK inhibitor that inhibits MEK1 and MEK2 (IC50=0.7/0.9 nM) with ATP non-competitive and oral activity. Trametinib activates autophagy and induces apoptosis.

PD98059 is an MEK inhibitor that inhibits MEK1 and MEK2 (IC50=2/50 μM) and is non-ATP-competitive. PD98059 is also antagonistic as a ligand for AHR. PD98059 inhibits autophagy.

CHMFL-EGFR-202 is a potent, irreversible inhibitor of EGFR mutant kinase with IC50 values of 5.3 nM for drug-resistant mutant EGFR T790M and 8.3 nM for WT EGFR kinases.

EF24 (3,5-Bis[(2-fluorophenyl)Methylene]-4-piperidinone) treatment increases the levels of activated caspase 3 and 9, and decreases the phosphorylated forms of MEK1 and ERK. EF24 shows potent anti-tumor activity in oral squamous cell carcinoma (OSCC) via deactivation of the MAPK/ERK signaling pathway.

Refametinib (RDEA119) (RDEA119, Bay 86-9766) is an effective, ATP non-competitive and specific inhibitor of MEK1/2 (IC50: 19/47 nM).

Selumetinib (AZD6244) is a MEK1/2 inhibitor that inhibits MEK1 (IC50=14 nM) with potent selectivity and is non-ATP-competitive. Selumetinib has antitumor activity and is used for the treatment of neurofibromatosis type 1 (NF1).

U0126, an effective and selective non-competitive inhibitor of MAP kinase, inhibits MEK-1 and MEK-2 with IC50 values of 0.07 and 0.06 μM respectively. U0126 inhibits autophagy and mitophagy.

SL327 is a selective inhibitor for MEK1/2 with IC50 of 0.18 μM/0.22 μM; able to transport through the blood-brain barrier.

GDC-0623 (RG 7421) is a potent, ATP-uncompetitive MEK1 inhibitor with a Ki of 0.13 nM, currently in Phase 1.

RO5126766 (CH5126766) is a dual RAF/MEK inhibitor with IC50 of 8.2 nM, 19 nM, 56 nM, and 160 nM for BRAF V600E, BRAF, CRAF, and MEK1, respectively. Phase 1.

MS432 is a highly selective PD0325901-based VHL-recruiting PROTAC degrader for MEK1 and MEK2.

5Z-7-Oxozeaenol (FR148083) is a potent, irreversible and selective inhibitor of transforming growth factor (TGF)-β-activated kinase 1 with IC50 of 8.1 nM for TAK1 and low activity against MEK1 with IC50 of 411 nM, it is also an inhibitor of VEGF-R2 with IC50 of 52 nM.

Hypothemycin is a fungal polyketide and is a multikinase inhibitor (Kis: 10/70 nM, 17/38 nM, 90 nM, 900 nM/1.5 μM, and 8.4/2.4 μM for VEGFR2/VEGFR1, MEK1/MEK2, FLT-3, PDGFRβ/PDGFRα, and ERK1/ERK2, respectively).

(E/Z)-BIX 02189 is an isomer of BIX 02189 that can be employed in biochemical experiments.

CI-1040 (PD 184352) (PD184352) is an ATP non-competitive MEK1/2 inhibitor (IC50: 17 nM).

Cobimetinib (GDC-0973) is a MEK1 inhibitor (IC50=4.2 nM) with selective and oral activity. Cobimetinib exhibits antitumor activity, inhibiting tumor cell proliferation and inducing apoptosis.

RO4987655 (RG7167) is an orally active and highly selective MEK inhibitor (IC50: 5.2 nM for MEK1/MEK2).

1. Epiberberine may be caused drug interactions based on CYP2D6 enzyme. 2. Epiberberine has anti-adipogenic effect is mediated by downregulation of the Raf/MEK1/ERK1/2 and AMPKα/Akt pathways during 3T3-L1 adipocyte differentiation. 3. Epiberberine, as the brightest FSA emitter among the alkaloids, can also serve as an efficient conformation probe for HTG DNA and discriminate the DNA G-quadruplex from the RNA counterpart.

TAK-285 is a novel dual HER2 and EGFR(HER1) inhibitor with IC50 of 17 nM and 23 nM, >10-fold selectivity for HER1/2 than HER4, less potent to MEK1/5, c-Met, Aurora B, Lck, CSK etc. Phase 1.

ZM 447439 is a selective and ATP-competitive inhibitor for Aurora A and Aurora B with IC50 of 110 nM and 130 nM, respectively. It is more than 8-fold selective for Aurora A/B than MEK1, Src, Lck and has little effect against CDK1/2/4, Plk1, Chk1, etc.

PD318088 is a non-ATP competitive allosteric MEK1/2 inhibitor, binding simultaneously with ATP in a region of the MEK1 active site that is adjacent to the ATP-binding site.

U0126-etoh (U0126 Ethanol) is a non-ATP competitive inhibitor of MEK1 (IC50=72 nM) and MEK2 (IC50=58 nM) with selectivity. U0126-EtOH inhibited autophagy and mitophagy.

BIX02188 is a specific MEK5 inhibitor (IC50: 4.3 nM), also inhibits ERK5 catalytic activity (IC50: 810 nM), and does not inhibit closely related kinases MEK1/2, JNK2, and ERK2.

TAK-733 is an orally bioavailable small-molecule inhibitor of MEK1 and MEK2 (MEK1/2) with potential antineoplastic activity.