CK2/ERK8-IN-1 (TMCB) is a dual inhibitor of casein kinase 2 (CK2) (Ki: 0.25 µM) and ERK8 (IC50s: 0.50 μM) with pro-apoptotic efficacy. CK2/ERK8-IN-1 also binds to PIM1, DYRK1A, and HIPK2 (Kis: 8.65 µM, 11.9 µM, and 15.25 µM).

ERK-IN-2, an ERK2 inhibitor, exhibits an IC50 value of 1.8 nM. At doses greater than 10 μM, it may induce off-target toxicity and/or activity [1].

ERK1/2 Inhibitor 5, a potent suppressant of the ERK1/2 pathway, is instrumental in the mitogen-activated protein kinase (MAPK) signal transduction pathway, where extracellular signal-regulated kinase (ERK) serves as a critical component of the MAPK family. This compound holds promise for the investigation or mitigation of cancer, inflammation, or various proliferative diseases[1].

ERK5-IN-2 is an orally active, sub-micromolar, selective ERK5 inhibitor with IC50s of 0.82 μM, 3 μM for ERK5 and ERK5 MEF2D, respectively.

ERK-IN-2 free base, an inhibitor of ERK2, demonstrates potent efficacy with an IC50 value of 1.8 nM. However, doses exceeding 10 μM may result in off-target toxicity and/or activity.

ERK1/2 Inhibitor 9 (Probe 1), a covalent antagonist of ERK1/2, exhibits sub-micromolar efficacy in cellular assays (A375 GI50=0.47 μM) and facilitates the reduction of phospho-ERK1/2 levels. When conjugated with trans-cyclo-octene (TCO) and Tz-Thalidomide (tetrazine-tagged Thalidomide), it forms the corresponding ERK-CLIPTAC, promoting targeted ERK1/2 degradation [1].

ERK1/2 Inhibitor 3, a potent inhibitor of ERK1/2, plays a crucial role in the signal transduction pathway by targeting the Mitogen-activated protein kinase (MAPK) family, specifically the extracellular signal-regulated kinase (ERK). Given its significant impact, this compound holds promise for research or prevention efforts related to cancer, inflammation, or other proliferative diseases[1].

ERK1/2 inhibitor 8 is a potent inhibitor of ERK that acts on ERK2 (IC50: 0.48 nM).

p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb #4695R is a useful organic compound for research related to life sciences and the catalog number is T64587.

ERK1/2 inhibitor 7 is a potent inhibitor of ERK, acting on ERK2 (IC50: 0.94 nM).

ERK1/2 inhibitor 6 is a potent inhibitor of ERK1/2. ERK1/2 inhibitor 6 has shown potential for the study or prevention of cancer, inflammation or other proliferative diseases.

ERK1/2 inhibitor 5 is a potent inhibitor of ERK1/2. ERK1/2 inhibitor 5 has the potential to investigate or prevent cancer, inflammation or other proliferative diseases.

Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (20G11) Rabbit mAb #4376R is a useful organic compound for research related to life sciences and the catalog number is T64608.

1. Hypericin (Cyclosan) has antineoplastic activity. 2. Hypericin has antibiotic and antiviral activities. 3. Hypericin has antidepressive activity through inhibiting monoamine oxidase enzyme. 4. Hypericin inhibits RANKL-mediated osteoclastogenesis via affecting ERK signalling in vitro and suppresses wear particle-induced osteolysis in vivo.

1. Farrerol has antioxidative activity.2. Farrerol modulates TAP and BNBD5 gene expression in mammary gland, enhances bMEC defense against S. aureus infection and could be useful in protection against bovine mastitis. 3. Farrerol inactivates KEAP-1 or act

FSLLRY-NH2 TFA is a is a protease-activated receptor 2 (PAR2) inhibitor. Reverses taxol-induced mechanical allodynia, heat hyperalgesia and PKC activation in ICR mice. Blocks ERK activation and collagen production in isolated cardiac fibroblasts. Also reduces symptoms in a mouse model of dermatophyte-associated itch.

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.

1. Oleandrin (Folinerin), the principal cardiac glycoside component of PBI-524, can quantitatively account for regulation of BDNF at both the protein and transcriptional levels. 2. Oleandrin are known to inhibit the Na, K-ATPase pump, resulting in a consequent increase in calcium influx in heart muscle. 3. Oleandrin has stronger anti-proliferative activity in undifferentiated CaCO-2 cells (IC50, 8.25 nM) , causes an autophagic cell death and altered ERK phosphorylation in undifferentiated.

KRAS inhibitor-14 is a potent inhibitor of KRAS G12C (IC50: 0.249 μM). KRAS inhibitor-14 exhibited p-ERK inhibition in MIA PaCA-2, A549 cells with IC50s of 1.12, >33.3 μM, respectively. KRAS inhibitor-14 has potential to be investigated in pancreatic, colorectal and lung cancers.

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

1. Prunetin (Prunusetin) significantly reduces serum levels of inflammatory cytokines and mortality in mice challenged with lipopolysaccharide. 2. Prunetin mediates anti-obesity/adipogenesis effects by suppressing obesity-related transcription through a feedback mechanism that regulates the expression of adiponectin, adipoR1, adipoR2, and AMPK. 3. Prunetin and biochanin A are potent reducers of NF-κB and ERK activation, zonula occludens 1 tyrosine phosphorylation, and metalloproteinase-mediated shedding activity, which may account for the barrier-improving ability of these isoflavones. 4. Prunetin significantly suppresses ATP-induced mucin secretion from cultured RTSE cells; Prunetin inhibits the production of MUC5AC mucin protein induced by EGF or PMA from NCI-H292 cells; Prunetin also inhibits the expression of MUC5AC mucin gene induced by EGF or PMA from NCI-H292 cells.

1. β,β-Dimethylacrylshikonin (Dimethylacrylshikonin) is a promising agent for developing an improved strategy for radiotherapy against tumors. (a) Injection of Dimethylacrylshikonin combined with IR treatment significantly suppressed tumor growth of the HCT-116 xenograft. (b) Dimethylacrylshikonin significantly suppressed the growth of H(22) transplantable hepatoma, and induced the activation of caspase-3 . (c) Dimethylacrylshikonin inhibited growth of gastric cancer SGC-791 cells by inducing ERK signaling pathway. 2. Dimethylacrylshikonin inhibits the proliferation of MCF-7 cells in vitro by inducing apoptosis through the downregulation of Bcl-2, upregulation of Bax and partial inactivation of the NF-κB pathway.

Protein kinase D (PKD), a serine/threonine protein kinase activated by diacylglycerol downstream of PKC signaling, has three human isoforms that modulate cell proliferation, survival, invasion, and protein transport. CRT0066101 acts as an inhibitor of these three PKD isoforms, with IC50 values of 1, 2.5, and 2 nM for PKD1, PKD2, and PKD3, respectively. It demonstrates selectivity for PKD over a range of more than 90 protein kinases, including PKCα, PKBα, MEK, ERK, c-Raf, c-Src, and c-Abl. This specificity allows CRT0066101 to inhibit cell proliferation, induce apoptosis, and notably reduce the viability of pancreatic cancer cells both in vitro and in vivo.

Multi-kinase-IN-2 is an orally active inhibitor of angiokinases. multi-kinase-IN-2 significantly inhibits the activity of angiokinases such as VEGFR-1/2/3, PDGFRα/β, FGFR-1, LYN and c-KIT kinases. -IN-2 significantly attenuates phosphorylation of AKT and ERK proteins, induces apoptosis and has anticancer effects.

RO5068760 , a substituted hydantoin, is a potent, highly selective, non-adenosine triphosphate (ATP)-competitive MEK1/2 inhibitors. RO5068760 shows significant efficacy in a broad spectrum of tumors with aberrant mitogen-activated protein kinase pathway activation. In vitro, RO5068760 demonstrates MEK1 kinase inhibitory activity with an IC50 of 0.025 μM in a cRaf/MEK/ERK cascade assay RO5068760 showed superior efficacy in tumors harboring B-RafV600E mutation.

KRAS inhibitor-12 (compound 6-1) is a potent inhibitor of KRAS G12C (IC50: 0.537 μM). KRAS inhibitor-12 exhibits p-ERK inhibition in MIA PaCA-2, A549 cells with IC50 values of 1.3, 3.7 μM respectively. KRAS inhibitor-12 has potential to be studied in pancreatic, colorectal and lung cancers.

Selective formyl peptide receptor 2 (FPR2) antagonist; cell permeable. Selectively inhibits FPR2-mediated NADPH oxidase activity but has no effect on FPR1 signaling in neutrophils. Displays PIP2 binding activity in vitro and blocks cell motility. Also exh

C2 Phytoceramide is a bioactive semisynthetic sphingolipid that inhibits formyl peptide-induced oxidant release (IC50 = 0.38 μM) in suspended polymorphonuclear cells. It increases COX-2 protein levels 15-fold through ERK signaling. It induces death of keratinocytes (20% viability) with an ED50 value of 30 μM, the same concentration at which 35% of cells in a TUNEL assay are apoptotic. C2 Phytoceramide also has antiproliferative effects in CHO cells, with greater than 80% cytotoxicity achieved at a concentration of 20 μM, and induces internucleosomal DNA fragmentation. In addition, it inhibits the activation of phospholipase D (PLD) mediated by muscarinic acetylcholine receptors in vitro.

Darinaparsin is a dimethylated arsenic linked to glutathione. It is cytotoxic to DU145, LNCaP, and PC3 prostate cancer cells (IC50s = 5-10 µM) and patient-derived primary prostate cancer cells (IC50s = 2.5-20 µM), as well as Jurkat T cell lymphoma and L540 Hodgkin lymphoma cells (IC50s = 2.7 and 1.3 µM, respectively). [1][2] It decreases the tumor-initiating subpopulation in DU145 and PC3 cells and halts the cell cycle in the G2/M phase. Darinaparsin decreases transcription of Gli-2, a transcription factor that mediates Sonic hedgehog signaling, when used at a concentration of 1.5 but not 3 µM. It decreases SHP1 phosphatase activity and increases ERK phosphorylation. [2] Darinaparsin reduces tumor growth in DU145 and PC3 prostate cancer mouse xenograft models when administered at a dose of 100 mg/kg every other day.[1]

KRAS inhibitor-17 (compound 3-9) is a potent inhibitor of KRAS G12C (IC50: 3.37 μM). KRAS inhibitor-17 exhibits p-ERK inhibition with IC50 = 9.25 μM in MIA PaCA-2 cells and >33.3 μM in A549 cells. KRAS inhibitor-17 has the potential to be studied in pancreatic, colorectal and lung cancers.

ERK2 IN-1 is a selective ERK2 inhibitor with an IC50 of 7 nM.

DMU-212 is a methylated derivative of Resveratrol , with antimitotic, anti-proliferative, antioxidant and apoptosis promoting activities. DMU-212 induces mitotic arrest via induction of apoptosis and activation of ERK1/2 protein. DMU-212 has orally active[1][2]. DMU-212 (0.3125-40 μM) inhibits growth of A375, MeWo, Bro and M5 cells human melanoma cells[1].DMU-212 (30-50 μM; 24 hours) induces upregulation of cell cycle inhibitors, apoptosis and ERK activation in A375 cells[1].DMU-212 induces upregulation of cell cycle inhibitors, apoptosis and ERK activation in A375 cells[1].DMU-212 induces G2/M arrest and apoptosis in cancer cells[1].DMU-212 induces mitotic arrest, apoptosis and activation of ERK1/2 protein[1]. Cell Proliferation Assay[1] Cell Line: A375 cells, MeWo cells, M5 cells, Bro cells DMU-212 (50 mg/kg; i.g.; three times a week; for 14 days) inhibits tumor growth in xenograft model of human ovarian cancer[2]. Animal Model: 6-weeks-old SCID female mice (20-24 g), with ovarian cancer xenografts[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.

Ulixertinib is an inhibitor of ERK protein kinase. Downmodulation of ERK protein kinase activity inhibits VEGF secretion by human myeloma cells and myeloma-induced angiogenesis. Upon oral administration, BVD-523 inhibits both ERK 1 and 2, thereby preventi

CAFESTOL is a ERK inhibitor for AP-1-targeted activity against PGE2 production and the mRNA expression of cyclooxygenase (COX)-2 in LPS-activated RAW264.7 cells. Cafestol has strong inhibitory activity on PGE2 production by suppressing the NF-kB activation pathway.

KRAS G12C inhibitor 61 (Example 3) demonstrates potent activity by inhibiting phospho-ERK 1/2 in MIA PaCa-2 cells, reflected in an IC50 value of 9 nM. This inhibitor is applicable in the research of pancreatic, colorectal, and lung cancers [1].

Rp-cAMPS sodium salt, a cAMP analog, is a potent, competitive cAMP-induced activation of cAMP-dependent PKA I and II (Kis of 12.5 μM and 4.5 μM, respectively) antagonist. Rp-cAMPS sodium salt is resistant to hydrolysis by phosphodiesterases[1][2][3][4][5][6]. A membrane-permeable competitive cAMP antagonist (Rp-cAMPS) that blocks PKA activation by binding to the regulatory subunits without dissociating the kinase holoenzyme also inhibits synaptic plasticity but has no effect on normal synaptic transmission[2]. Rp-cAMPS (10 μM, 15 min) decreases the monosynaptic EPSCs evoked at the PB-CeLC and BLA-CeLC synapses in slices from arthritic rats but not in control neurons from normal animals. The inhibitory effect of Rp-cAMPS is significant compared to predrug (ACSF) control values obtained in the same neurons[2]. [1]. R J de Wit, et al. Inhibitory action of certain cyclophosphate derivatives of cAMP on cAMP-dependent protein kinases. Eur J Biochem. 1984 Jul 16;142(2):255-60. [2]. Rothermel JD, et al. A mechanistic and kinetic analysis of the interactions of the diastereoisomers of adenosine 3’,5’-(cyclic)phosphorothioate with purified cyclic AMP-dependent protein kinase. Biochem J. 1988 May 1;251(3):757-62.[3]. Fu Y, et al. PKA and ERK, but not PKC, in the amygdala contribute to pain-related synaptic plasticity and behavior. Mol Pain. 2008 Jul 16;4:26.[4]. Kuriyama S, et al. Isoproterenol inhibits rod outer segment phagocytosis by both cAMP-dependent and independent pathways. Invest Ophthalmol Vis Sci. 1995 Mar;36(3):730-6.[5]. Dostmann WR, et al. Probing the cyclic nucleotide binding sites of cAMP-dependent protein kinases I and II with analogs of adenosine 3’,5’-cyclic phosphorothioates. J Biol Chem. 1990 Jun 25;265(18):10484-91.[6]. Van Haastert PJ, et al. Competitive cAMP antagonists for cAMP-receptor proteins. J Biol Chem. 1984 Aug 25;259(16):10020-4.

CXJ-2, a cyclic peptide, demonstrates moderate affinity for elastin-derived peptides (EDPs) and exhibits potent inhibition of the PI3K/ERK pathway, alongside significant reduction in hepatic stellate cell proliferation and migration, conferring strong antifibrotic efficacy [1].

KRAS inhibitor-13 (compound 5-6) is a potent inhibitor of KRAS G12C (IC50: 0.883 μM). KRAS inhibitor-13 has a p-ERK inhibitory effect in MIA PaCA-2, A549 cells with IC50 values of 5.9 and >100 μM respectively. KRAS inhibitor-13 has potential to be studied in pancreatic, colorectal and lung cancers.

1. Nardosinone has inhibitory effect on Ang II-induced hypertrophy in H9c2 cells, might be mediated by targeting PI3K/Akt and MEK/ERK signaling pathways. 2. Nardosinone could protect against the neuronal injury exposed to OGD, which may be relevant to the

KRAS inhibitor-15 (compound 3-19) is a potent inhibitor of KRAS G12C (IC50: 0.954 μM). KRAS inhibitor-15 exhibits p-ERK inhibition in MIA PaCA-2, A549 cells with IC50s of 2.03, >33.3 μM, respectively. KRAS inhibitor-15 has potential to be studied in pancreatic, colorectal and lung cancers.

ERK-IN-3 (ASN007 free base) is a potent and orally active inhibitor of ERK. It inhibits ERK1/2 with low single-digit nM IC50 values. It can be used for the research of cancers driven by RAS mutations.

Jaceosidin has anti-oxidative activity. Jaceosidin has anti-inflammatory activity, also a microglial inhibitor with anti-neuroinflammation activity. aceosidin has anticancer activity, modulates the ERK/ATM/Chk1/2 pathway, leading to inactivation of the Cd

1. Nitidine chloride has inhibitory effects on various tumors, such as renal cancer , breast cancer. 2. Nitidine chloride inhibits the proliferation of SMMC-7721 cells in vitro in a time- and dose-dependent manner and identifies efficacy in vivo in a mouse model of HCC.

6-Hydroxyflavone (6-HF) is a noncompetitive inhibitors of cytochrome P450 2C9. It is a flavone, a type of chemical compound. It is reported in leaves of Barleria prionitis Linn. (a common Acanthaceae from India). 6-Hydroxyflavone may have a potential as a therapeutic drug capable for the treatment of anxiety-like disorders.

The extracellular signal-regulated kinase (ERK) signal transduction pathway regulates a diverse array of cellular processes. These processes include cell survival, proliferation, motility, and differentiation and are constitutively activated in cancers involving lung, colon, pancreas, kidney, and ovary. CAY10561 is a potent, ATP-competitive inhibitor of ERK2 (Ki = 2 nM). This compound is highly selective for ERK2 compared to other kinases such as PKA (Ki = 0.39 μM) and JNK3 (Ki = 4 μM). CAY10561 inhibits proliferation of COLO 205 cells with an IC50 value of 0.54 μM.

Maprotiline inhibits cell proliferation and metastasis with anticancer effects. Maprotiline induces apoptosis in cancer cells by targeting ERK signaling pathway and CRABP1. Maprotiline is a highly selective norepinephrine reuptake blocker with potent antidepressant properties. [1][2].

KRAS inhibitor-18 (compound 3-10) is a potent inhibitor of KRAS G12C (IC50: 4.74 μM). KRAS inhibitor-18 exhibited p-ERK inhibition in MIA PaCA-2, A549 cells with IC50s of 66.4, 11.1 μM respectively. KRAS inhibitor-18 has potential for pancreatic, colorectal and lung cancer studies.

ASK120067 is a potent and orally active inhibitor of EGFRT790M (IC50:0.3 nM) with selectivity over EGFRWT (IC50:6.0 nM). ASK120067 is a third-generation EGFR-TKI for the research of non-small cell lung cancer (NSCLC)[1]. In the in vitro kinase assay ASK120067 potently inhibits the EGFR L858R/T790M and EGFR T790M resistant mutants with IC50 values of 0.3 nM and 0.5 nM, respectively, as well as the EGFRexon19del sensitizing mutant (IC50= 0.5 nM). The 50 of ASK120067 against wild-type EGFR (EGFRWT) is 6 nM[1].ASK120067 selectively inhibits the growth of EGFR-mutant cell lines and exhibits potent antiproliferative activity in the mutant EGFR NSCLC cells, with IC50 values of 12 nM, 6 nM and 2 nM against NCI-H1975 (T790M mutation), PC-9, and HCC827 cells (sensitizing mutations), respectively. However, it shows moderate or weak anti-growth activities in A431, LoVo and A549 cells (EGFRWT), with IC50 values ranging from 338 nM to 1541 nM[1].ASK120067 (0.1-100 nM) inhibits the phosphorylation of EGFR at Tyrosine residue 1068 and its downstream signaling proteins AKT and ERK in NCI-H1975 cells (EGFRL858R/T790M) even at low dosage (0.1-1 nM). Additionally, ASK120067 inhibits p-EGFR and p-Akt and p-erk in EGFR WT A431 cell until the concentration reaches 10 to 100 nM[1]. ASK120067 (oral gavage; 5-20 mg/kg; once daily; 21 days) results in significantly regressed tumor growth, with a tumor growth inhibition (TGI) rate of 85.7%, and administration of 10 mg/kg ASK120067 causes dramatic tumor shrinkage with a TGI rate of 99.3%, exhibiting a similar potency with Osimertinib[1]. [1]. Tao Zhang, et al. Discovery of a novel third-generation EGFR inhibitor and identification of a potential combination strategy to overcome resistance. Mol Cancer. 2020 May 13;19(1):90.

KRAS inhibitor-16 (compound 3-11) is a potent inhibitor of KRAS G12C (IC50: 0.457 μM). KRAS inhibitor-16 exhibits p-ERK inhibition in MIA PaCA-2, A549 cells with IC50s of 3.06, 11.1 μM respectively. KRAS inhibitor-16 has potential to be studied in pancreatic, colorectal and lung cancers.

CML-IN-1, also known as compound 7 and compound 4, is a potent anticancer agent that demonstrates a strong induced-apoptosis effect in the human chronic myeloid leukemia (CML) cell line K562. It diminishes protein phosphorylation within the PI3K/Akt signaling pathway to exert its effects and suppresses cell proliferation through the inhibition of the MEK/ERK signaling pathway in colorectal cancer [1] [2].