MEK
Inhibitory Selectivity
Isoform-specific Inhibitors
MEK Products
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S1102 |
U0126-EtOHU0126-EtOH is a highly selective inhibitor of MEK1/2 with IC50 of 0.07 μM/0.06 μM in cell-free assays, 100-fold higher affinity for ΔN3-S218E/S222D MEK than PD98059. U0126 inhibits autophagy and mitophagy with antiviral activity. |
Cells were stimulated with TPA (10 nM) for 15 min in the presence of the indicated concentrations of U0126. Samples were collected and analyzed by Western blot to detect phosphorylated p42/p44 MAPK. |
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| S1020 |
PD184352 (CI-1040)PD184352 (CI-1040) is an ATP non-competitive MEK1/2 inhibitor with IC50 of 17 nM in cell-based assays, 100-fold more selective for MEK1/2 than MEK5. PD184352 (CI-1040) selectively induces apoptosis. Phase 2. |
Melanoma cell viability and in vivo growth by cyclindependent kinase 2/4 inhibition. Western blot analysis for c-Jun, phosphorylated-ERK1/2 (Thr202/Tyr204) (p-ERK1/2), and total ERK1/2 protein levels was done for human melanoma cell lines treated with the BRAFV600E inhibitor GDC-0879 (1 μM), or MEK inhibitors CI-1040 (1 μM), U0126 (1 μM), and PD98059 (10 μM) for 18 hours. |
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| S1177 |
PD98059PD98059 is a non-ATP competitive MEK inhibitor with IC50 of 2 μM in a cell-free assay, specifically inhibits MEK-1-mediated activation of MAPK; does not directly inhibit ERK1 or ERK2. PD98059 is a ligand for the aryl hydrocarbon receptor (AHR) and functions as an AHR antagonist. |
Activation of a TLR2eERK1/2 pathway in MDDC. (C) MDDC were either untreated or treated with C. pneumoniae alone or in the presence of the ERK1/2 inhibitor PD98059 for 48 h. IL-12p70 and IL-10 release in culture media was assessed by ELISA. (D) MDDC were treated as in panel C for 48 h and then cocultured with purified allogeneic CD3t T cells. On day 12, supernatants were collected, and secreted cytokines were measured by ELISA. |
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| S1531 |
BIX 02189BIX02189 is a selective inhibitor of MEK5 with IC50 of 1.5 nM, also inhibits ERK5 catalytic activity with IC50 of 59 nM in cell-free assays, and does not inhibit closely related kinases MEK1, MEK2, ERK2, and JNK2. |
Expression of iNOS, Fra-1, Fra-2, JunB, JunD, and FosB in PMN. (A) PMN were treated with or without SB203580 (40 μM), BIX02189 (30 μM), or SP600125 (40 μM) for 1 h before addition of NDMA (0.74 μg/μl). The cytoplasmic and nuclear fractions obtained from the cells were used to detect iNOS, Fra-1, Fra-2, JunB, JunD, and FosB protein levels by Western blot. The results shown are representative of five independent experiments. |
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| S1530 |
BIX 02188BIX02188 is a selective inhibitor of MEK5 with IC50 of 4.3 nM, also inhibits ERK5 catalytic activity with IC50 of 810 nM, and does not inhibit closely related kinases MEK1, MEK2, ERK2, and JNK2. |
Retrograde NGF increased BDNF expression in sensory neurons, which was mediated by the MEK/ERK pathway. In two-compartmented DRG-nerve culture, NGF (50 ng/mL) was added to the chamber containing the sensory axonal terminals. The expression of BDNF was examined in the DRG neuronal soma located in another chamber. After 12 h of NGF treatment, the level of BDNF was increased in the sensory neuronal cell bodies by 3 fold (compare B to A) when compared to control (E). The role of the MEK/ERK pathway in retrograde NGF-triggered BDNF up-regulation was determined by pre-treatment of the ganglia with inhibitors U0126 (C), PD98059 (D) or BIX02188 (E). All inhibitors significantly reduced NGF-evoked BDNF up-regulation in the ganglia when compared to vehicle treatment (F). Results were from 4 independent experiments for each treatment. Bar=80 μm. *, p＜0.05 vs all groups. |
|
| E2821New |
RGB-286638 free baseRGB-286638 free base is a Cyclin-dependent kinase (CDK) inhibitor that inhibits the kinase activity of cyclin T1-CDK9, cyclin B1-CDK1, cyclin E-CDK2, cyclin D1-CDK4, cyclin E-CDK3, and p35-CDK5 with IC50s of 1, 2, 3, 4, 5 and 5 nM, respectively; also inhibits GSK-3β, TAK1, Jak2 and MEK1, with IC50s of 3, 5, 50, and 54 nM. |
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| S6641New |
GW284543 (UNC10225170)GW284543 (UNC10225170), a MEK5-selective inhibitor, inhibits MEK5 in a dose-dependently way as determined by reductions in pERK5, and decreases endogenous MYC protein. |
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| S0739New |
PD184161PD184161, an orally active MEK inhibitor with IC50 of 10-100 nM in a time- and concentration-dependent manner, inhibits cell proliferation and induces apoptosis, and produces depressive-like behavior. |
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| E0404New |
Zapnometinib (PD0184264)Zapnometinib (PD0184264, ATR-002), an major active metabolite of CI-1040, is a novel MEK inhibitor with an IC50 of 5.7 nM. |
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| S2617 |
TAK-733TAK-733 is a potent and selective MEK allosteric site inhibitor for MEK1 with IC50 of 3.2 nM, inactive to Abl1, AKT3, c-RAF, CamK1, CDK2, c-Met, etc. Phase 1. |
Effect of MEK inhibitor TAK-733 in A549 cells. A549 cells were incubated with increasing concentrations of TAK-733 for 2 h. The cell lysates were harvested and phosphorylation of indicated proteins was determined by Western blotting.
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| S2134 |
AZD8330AZD8330 (ARRY704) is a novel, selective, non-ATP competitive MEK 1/2 inhibitor with IC50 of 7 nM. Phase 1. |
iKras p53L/+ cells were treated with AZD8330 (50 nM), BKM120 (150 nM), or Rapamycin (20 nM) for 18 hr. As control, cells were cultured in the presence or absence of doxycycline for 24 hr, and cell lysates were blotted for phospho-Akt, phospho-Erk, phospho-S6, and Myc.
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| S1568 |
PD318088PD318088 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. |
After starved in serum-free medium for 24h, T47D cells incubated with the indicated concentrations of PD318088 for 3h,followed by 20-minute stimolation of 100ng/ml EGF. |
|
| S1066 |
SL-327SL327 is a selective inhibitor for MEK1/2 with IC50 of 0.18 μM/ 0.22 μM, no activity towards Erk1, MKK3, MKK4, c-JUN, PKC, PKA, or CamKII;capable of transport through the blood-brain barrier. |
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| S0743 |
GW 284543 hydrochlorideGW 284543 hydrochloride (UNC 10225170) is a selective inhibitor of MEK5. |
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| S2326 |
MyricetinMyricetin, a natural flavonoid with antioxidant and anti tumor properties, is a novel inhibitor of MEK1 activity and transformation of JB6 P+ mouse epidermal cells. It also inhibits PI3Kγ with Kd of 0.17 μM. |
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| S7843 |
BI-847325BI-847325 is an orally bioavailable, and selective dual MEK/Aurora kinase inhibitor with IC50 of 3 nM, 25 nM, 15 nM, 25 nM, and 4 nM for Xenopus laevis Aurora B, human Aurora A and Aurora C, as well as human MEK1 and MEK2, respectively. Phase 1. |
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| S7170 |
RO5126766 (CH5126766)RO5126766 (CH5126766, VS 6766, CKI-27, R-7304, RG-7304) 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. |
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| S4484 |
Trametinib DMSO solvateTrametinib (GSK1120212, JTP-74057, Mekinist) DMSO solvate is a highly specific and potent MEK1/2 inhibitor with IC50 of 0.92 nM/1.8 nM in cell-free assay. Trametinib activates autophagy and induces apoptosis. |
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| S8355 |
APS-2-79 HClAPS-2-79 is a MAPK antagonist that modulating KSR-dependent MAPK signalling by antagonizing RAF heterodimerization as well as the conformational changes required for phosphorylation and activation of KSR-bound MEK. IC50=120 ± 23 nM. |
Detection of the effects of letrozole and the MAPK pathway on the proliferation of GC-1 spg cells by BrdU. MAPK, mitogen-activated protein kinase; spg, spermatogonia; BrdU, bromodeoxyuridine
|
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S1102 |
U0126-EtOHU0126-EtOH is a highly selective inhibitor of MEK1/2 with IC50 of 0.07 μM/0.06 μM in cell-free assays, 100-fold higher affinity for ΔN3-S218E/S222D MEK than PD98059. U0126 inhibits autophagy and mitophagy with antiviral activity. |
Cells were stimulated with TPA (10 nM) for 15 min in the presence of the indicated concentrations of U0126. Samples were collected and analyzed by Western blot to detect phosphorylated p42/p44 MAPK. |
|
| S1020 |
PD184352 (CI-1040)PD184352 (CI-1040) is an ATP non-competitive MEK1/2 inhibitor with IC50 of 17 nM in cell-based assays, 100-fold more selective for MEK1/2 than MEK5. PD184352 (CI-1040) selectively induces apoptosis. Phase 2. |
Melanoma cell viability and in vivo growth by cyclindependent kinase 2/4 inhibition. Western blot analysis for c-Jun, phosphorylated-ERK1/2 (Thr202/Tyr204) (p-ERK1/2), and total ERK1/2 protein levels was done for human melanoma cell lines treated with the BRAFV600E inhibitor GDC-0879 (1 μM), or MEK inhibitors CI-1040 (1 μM), U0126 (1 μM), and PD98059 (10 μM) for 18 hours. |
|
| S1177 |
PD98059PD98059 is a non-ATP competitive MEK inhibitor with IC50 of 2 μM in a cell-free assay, specifically inhibits MEK-1-mediated activation of MAPK; does not directly inhibit ERK1 or ERK2. PD98059 is a ligand for the aryl hydrocarbon receptor (AHR) and functions as an AHR antagonist. |
Activation of a TLR2eERK1/2 pathway in MDDC. (C) MDDC were either untreated or treated with C. pneumoniae alone or in the presence of the ERK1/2 inhibitor PD98059 for 48 h. IL-12p70 and IL-10 release in culture media was assessed by ELISA. (D) MDDC were treated as in panel C for 48 h and then cocultured with purified allogeneic CD3t T cells. On day 12, supernatants were collected, and secreted cytokines were measured by ELISA. |
|
| S1531 |
BIX 02189BIX02189 is a selective inhibitor of MEK5 with IC50 of 1.5 nM, also inhibits ERK5 catalytic activity with IC50 of 59 nM in cell-free assays, and does not inhibit closely related kinases MEK1, MEK2, ERK2, and JNK2. |
Expression of iNOS, Fra-1, Fra-2, JunB, JunD, and FosB in PMN. (A) PMN were treated with or without SB203580 (40 μM), BIX02189 (30 μM), or SP600125 (40 μM) for 1 h before addition of NDMA (0.74 μg/μl). The cytoplasmic and nuclear fractions obtained from the cells were used to detect iNOS, Fra-1, Fra-2, JunB, JunD, and FosB protein levels by Western blot. The results shown are representative of five independent experiments. |
|
| S1530 |
BIX 02188BIX02188 is a selective inhibitor of MEK5 with IC50 of 4.3 nM, also inhibits ERK5 catalytic activity with IC50 of 810 nM, and does not inhibit closely related kinases MEK1, MEK2, ERK2, and JNK2. |
Retrograde NGF increased BDNF expression in sensory neurons, which was mediated by the MEK/ERK pathway. In two-compartmented DRG-nerve culture, NGF (50 ng/mL) was added to the chamber containing the sensory axonal terminals. The expression of BDNF was examined in the DRG neuronal soma located in another chamber. After 12 h of NGF treatment, the level of BDNF was increased in the sensory neuronal cell bodies by 3 fold (compare B to A) when compared to control (E). The role of the MEK/ERK pathway in retrograde NGF-triggered BDNF up-regulation was determined by pre-treatment of the ganglia with inhibitors U0126 (C), PD98059 (D) or BIX02188 (E). All inhibitors significantly reduced NGF-evoked BDNF up-regulation in the ganglia when compared to vehicle treatment (F). Results were from 4 independent experiments for each treatment. Bar=80 μm. *, p＜0.05 vs all groups. |
|
| E2821New |
RGB-286638 free baseRGB-286638 free base is a Cyclin-dependent kinase (CDK) inhibitor that inhibits the kinase activity of cyclin T1-CDK9, cyclin B1-CDK1, cyclin E-CDK2, cyclin D1-CDK4, cyclin E-CDK3, and p35-CDK5 with IC50s of 1, 2, 3, 4, 5 and 5 nM, respectively; also inhibits GSK-3β, TAK1, Jak2 and MEK1, with IC50s of 3, 5, 50, and 54 nM. |
||
| S6641New |
GW284543 (UNC10225170)GW284543 (UNC10225170), a MEK5-selective inhibitor, inhibits MEK5 in a dose-dependently way as determined by reductions in pERK5, and decreases endogenous MYC protein. |
||
| S0739New |
PD184161PD184161, an orally active MEK inhibitor with IC50 of 10-100 nM in a time- and concentration-dependent manner, inhibits cell proliferation and induces apoptosis, and produces depressive-like behavior. |
||
| E0404New |
Zapnometinib (PD0184264)Zapnometinib (PD0184264, ATR-002), an major active metabolite of CI-1040, is a novel MEK inhibitor with an IC50 of 5.7 nM. |
||
| S2617 |
TAK-733TAK-733 is a potent and selective MEK allosteric site inhibitor for MEK1 with IC50 of 3.2 nM, inactive to Abl1, AKT3, c-RAF, CamK1, CDK2, c-Met, etc. Phase 1. |
Effect of MEK inhibitor TAK-733 in A549 cells. A549 cells were incubated with increasing concentrations of TAK-733 for 2 h. The cell lysates were harvested and phosphorylation of indicated proteins was determined by Western blotting.
|
|
| S2134 |
AZD8330AZD8330 (ARRY704) is a novel, selective, non-ATP competitive MEK 1/2 inhibitor with IC50 of 7 nM. Phase 1. |
iKras p53L/+ cells were treated with AZD8330 (50 nM), BKM120 (150 nM), or Rapamycin (20 nM) for 18 hr. As control, cells were cultured in the presence or absence of doxycycline for 24 hr, and cell lysates were blotted for phospho-Akt, phospho-Erk, phospho-S6, and Myc.
|
|
| S1568 |
PD318088PD318088 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. |
After starved in serum-free medium for 24h, T47D cells incubated with the indicated concentrations of PD318088 for 3h,followed by 20-minute stimolation of 100ng/ml EGF. |
|
| S1066 |
SL-327SL327 is a selective inhibitor for MEK1/2 with IC50 of 0.18 μM/ 0.22 μM, no activity towards Erk1, MKK3, MKK4, c-JUN, PKC, PKA, or CamKII;capable of transport through the blood-brain barrier. |
||
| S0743 |
GW 284543 hydrochlorideGW 284543 hydrochloride (UNC 10225170) is a selective inhibitor of MEK5. |
||
| S2326 |
MyricetinMyricetin, a natural flavonoid with antioxidant and anti tumor properties, is a novel inhibitor of MEK1 activity and transformation of JB6 P+ mouse epidermal cells. It also inhibits PI3Kγ with Kd of 0.17 μM. |
||
| S7843 |
BI-847325BI-847325 is an orally bioavailable, and selective dual MEK/Aurora kinase inhibitor with IC50 of 3 nM, 25 nM, 15 nM, 25 nM, and 4 nM for Xenopus laevis Aurora B, human Aurora A and Aurora C, as well as human MEK1 and MEK2, respectively. Phase 1. |
||
| S7170 |
RO5126766 (CH5126766)RO5126766 (CH5126766, VS 6766, CKI-27, R-7304, RG-7304) 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. |
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| S4484 |
Trametinib DMSO solvateTrametinib (GSK1120212, JTP-74057, Mekinist) DMSO solvate is a highly specific and potent MEK1/2 inhibitor with IC50 of 0.92 nM/1.8 nM in cell-free assay. Trametinib activates autophagy and induces apoptosis. |
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S8355 |
APS-2-79 HClAPS-2-79 is a MAPK antagonist that modulating KSR-dependent MAPK signalling by antagonizing RAF heterodimerization as well as the conformational changes required for phosphorylation and activation of KSR-bound MEK. IC50=120 ± 23 nM. |
Detection of the effects of letrozole and the MAPK pathway on the proliferation of GC-1 spg cells by BrdU. MAPK, mitogen-activated protein kinase; spg, spermatogonia; BrdU, bromodeoxyuridine
|
