erk-1

SCH772984 is an ERK inhibitor that inhibits ERK1 and ERK2 (IC50=4/1 nM) and is highly selective and ATP-competitive. SCH772984 exhibits antitumor activity against BRAF or RAS mutant cells.

ERK1/2 inhibitor 1 is a potent, orally bioavailable compound that exhibits 60% inhibition at 1 nM and has an IC50 of 3.0 nM against ERK1 and ERK2, respectively.

MK-8353 (SCH900353) is a potent, selective, and orally available inhibitor of ERK1/2 with IC50 values of 23.0 nM and 8.8 nM, respectively.

AY 77 (Unk-Cha-Chg-NH2) is a potent and selective PAR2 agonist. AY 77 showed selectivity for Ca2+ and ERK1/2 signaling (ec50 value of Ca2+ release was 40 nM and ec50 value of ERK1/2 phosphorylation was 2 μM). AY 77 can promote migration of human breast cancer cells in vitro.

Notoginsenoside R1 (Sanchinoside R1) has been shown to exhibit antioxidant, antiapoptotic, anti-inflammatory, and immune-stimulatory properties.

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).

Rineterkib (ERK-IN-1) is an inhibitor of RAF and ERK1/2 activating mutations in the MAPK pathway.

CC-90003 is a selective inhibitor of ERK 1/2. It has antitumor activity.

DMU-212 is a methylated derivative of resveratrol with antimitotic, anti-proliferative, antioxidant, and apoptosis-promoting activities. It induces mitotic arrest, apoptosis, and activation of ERK1/2 protein and has oral activity[1][2]. DMU-212 (0.3125-40 μM) inhibits the growth of human melanoma cells (A375, MeWo, Bro, M5)[1]. At concentrations of 30-50 μM over 24 hours, it upregulates cell cycle inhibitors, induces apoptosis, and activates ERK in A375 cells[1]. DMU-212 also induces G2/M arrest and apoptosis in cancer cells[1]. In a xenograft model of human ovarian cancer with six-week-old SCID female mice (20-24 g), DMU-212 (50 mg/kg, administered orally three times a week for 14 days) inhibits tumor growth[2]. [1]. Vasilis Pericles Androutsopoulos, et al. Activation of ERK1/2 is required for the antimitotic activity of the resveratrol analogue 3,4,5,4'-tetramethoxystilbene (DMU-212) in human melanoma cells. Exp Dermatol. 2015 Aug;24(8):632-4. [2]. Hanna Piotrowska, et al. DMU-212 inhibits tumor growth in xenograft model of human ovarian cancer. Biomed Pharmacother. 2014 May;68(4):397-400.

Temuterkib (LY3214996) is a potent and selective, orally available inhibitor of the extracellular signal-regulated kinase (ERK) 1 and 2, with potential antineoplastic activity.

Pluripotin (SC1) (SC1), which keep embryonic stem cell (ESC) self-renewal, is a dual inhibitor of extracellular signal-regulated kinase 1 (ERK1, MAPK3) and RasGAP.

mSIRK (G-Protein βγ Binding Peptide) is a cell-permeable activator of ERK 1/2 with an EC50 of 2.5-5 μM. It disrupts the interaction between the α and βγ subunits, facilitating α subunit dissociation without inducing nucleotide exchange [1].

ERK1/2 inhibitor 2 (ASTX029) is a selective and orally bioavailable extracellular signal-regulated kinases 1 and 2 (ERK 1/2) inhibitor, with potential antineoplastic activity.

Ravoxertinib hydrochloride is an orally bioavailable and selective inhibitor for ERK kinase activity (IC50: 6.1 nM and 3.1 nM for ERK1 and ERK2, respectively).

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).

FR 180204 is a potent and selective ATP-competitive inhibitor of ERK1 and ERK2.

Ezatiostat hydrochloride (TLK199 HCl) is an effective inhibitor of glutathione S-transferase. Ezatiostat hydrochloride is a novel glutathione analog and the potential treatment of cytopenias. In addition, Ezatiostat hydrochloride has been revealed to selectively bind to and thus inhibit GSTP1-1.

SUN11602, an aniline compound, mimics the neuroprotective mechanisms of basic fibroblast growth factor. It mimics the neuroprotective effects of bFGF and prevents glutamate-induced neuronal death. It also increases levels of CALB1 gene expression in cerebrocortical neurons and triggers phosphorylation of FGFR and ERK1/2.

Magnolin reduces the renal oxidative stress, suppresses caspase-3 activity, and increases Bcl-2 expression in vivo and in vitro. Magnolin has anti-inflammatory and antioxidative effects.

Astragaloside, one of the main active ingredients in Astragalus membranaceus.

AG126 (Tyrphostin AG126) selectively inhibits the phosphorylation of ERK1 (p44) and ERK2 (p42) at 25-50 μM. It blocks the production of TNF-α in vitro2 and in vivo, attenuating signaling through NF-κB, the induced expression of COX-2 and iNOS, and the inflammatory response in diverse animal models. AG-126 weakly inhibits epidermal GFRK (IC50: 450 μM) and platelet-derived GFRK (IC50 > 100 μM).

1. Cornuside (Comuside) has immunomodulatory activity . 2. Cornuside suppresses expression levels of cytokine-induced proinflammatory and adhesion molecules in the human endothelial cells. 3. Cornuside can treat myocardial I/R and protect the liver from CCl4-induced acute hepatotoxicity, by reducing oxidative stress and suppressing inflammatory responses. 4. Cornuside has anti-inflammatory activity by downregulations of iNOS and COX-2 due to NF-κB inhibition as well as the negative regulation of ERK1/2, p38, and JNK1/2 phosphorylations in RAW 264.7 cells. 5. Cornuside has protective potential against cerebral ischemic injury, may be due to the suppression of intracellular Ca(2+) elevation and caspase-3 activity, and improvements in mitochondrial energy metabolism and antioxidant properties.

Ezatiostat (TER199(free base)) is a tripeptide analog of glutathione that can selectively inhibit GSTP1-1 catalytic activity.

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.