ERK Activator

Pamoic acid disodium is a potent GPR35 agonist with an EC₅₀ value of 79 nM. Pamoic acid disodium induces GPR35 internalization and activates ERK1/2 with EC₅₀ values of 22 nM and 65 nM, respectively. Pamoic acid disodium potently recruits β-arrestin2 to GPR35 and has an antinociceptive effect.

H-Ile-Lys-Val-Ala-Val-OH is one of the most potent active sites of laminin-1. H-Ile-Lys-Val-Ala-Val-OH promotes cell adhesion, neurite outgrowth, and tumor growth. H-Ile-Lys-Val-Ala-Val-OH stimulates BMMSC population growth and proliferation by activating MAPK/ERK1/2 and PI3K/Akt signalling pathways.

CMIT/MIT (14.5% in water) (CMI/MI) is a mixture of CMIT and MIT, and is also a preservative and skin sensitizer. CMIT/MIT (14.5% in water) increases the levels of phosphorylated ERK1/2, p38, JNK1/2, p53, p21 and Bax, decreases the level of Bcl-2, and activates the Nrf-2/HO-1 signaling pathway. CMIT/MIT (14.5% in water) increases LDH release and lipid peroxidation levels, impairs antioxidant defense capacity, promotes pro-inflammatory cytokine release, induces apoptosis, triggers cell cycle arrest, exhibits neurotoxicity in neuroblastoma cells, and causes dysregulation of Th2/Th17 immune responses. CMIT/MIT (14.5% in water) can be used in studies related to allergy, atopic dermatitis and lung injury.

CHPG is a selective mGluR5 agonist, and attenuates SO₂-induced oxidative stress and inflammation through TSG-6/NF-κB pathway in BV2 microglial cells. CHPG protects against traumatic brain injury (TBI) in vitro and in vivo by activation of the ERK and Akt signaling pathways.

Gambogic amide is a potent and selective agonist of TrkA and also induces its tyrosine phosphorylation and activation of downstream signaling, including Akt and MAPK. Gambogic amide specifically interacts with the cytoplasmic juxtamembrane domain of the TrkA receptor and triggers its dimerization, leading to activation. Gambogic amide has neuroprotective activity preventing glutamate-induced neuronal cell death. Gambogic amide has improved efficacy in a transient middle cerebral artery occlusion model of stroke and could be used to study neurodegenerative diseases and stroke.

Ganglioside GM1 is a type of glycosphingolipid, mainly found on the cell membranes of the central nervous system of vertebrates. Ganglioside GM1 exerts neuroprotective effects by reducing excessive activation of NMDAR, activating TrkA and ERK1/2, and inhibiting oxidative stress and cell apoptosis and autophagy. Ganglioside GM1 can be used in the research of diseases such as traumatic brain injury, Parkinson's disease, Alzheimer's disease, and Huntington's disease.

PDRN (Polydeoxyribonucleotide) is a deoxynucleotide polymer mainly derived from the sperm of rainbow trout or salmon. PDRN inhibits pro-inflammatory factors and promotes VEGF expression via the cAMP-PKA pathway by activating the adenosine A_2A receptor (A_2AR), thereby driving angiogenesis and collagen deposition in fibroblasts. Degradation products of PDRN provide DNA raw materials for proliferating cells through the salvage synthesis pathway, accelerating re-epithelialization. PDRN reduces melanin synthesis and cell apoptosis by upregulating ERK/AKT phosphorylation and inhibiting the activities of MITF and tyrosinase, and resists skin aging by attenuating nuclear autophagy and blocking the interaction between LC3-SIRT1. PDRN is mainly used for wound repair, post-aesthetic surgery recovery and anti-aging research.

Fenoprofen (LILLY-53858) Calcium hydrate is a nonsteroidal anti-inflammatory agent (NSAID) and inhibits cyclooxygenase (COX). Fenoprofen Calcium hydrate is a melanocortin receptors (MCRs) positive allosteric modulator (PAM). Fenoprofen Calcium hydrate also increases ERK1/2 activation in HEK293T cells. Fenoprofen Calcium hydrate has anti-arthritic activities and can be used for the study of rheumatoid arthritis and osteoarthritis.

TriDAP dihydrochloride (L-Ala-γ-D-Glu-meso-diaminopimelic acid dihydrochloride) is a NOD1 agonist with a K_d value of 34.5 μM. TriDAP dihydrochloride enhances the binding of NOD1-RICK, promotes RICK phosphorylation, and activates the NF-κB, TAK1, MEK/ERK, p38 and interferon response pathways. TriDAP dihydrochloride downregulates Runx2 via increasing ubiquitination and reduces trabecular bone parameters. TriDAP dihydrochloride decreases IκBα levels and increases p65 levels. TriDAP dihydrochloride induces the secretion of proinflammatory mediators IL-8 and prostaglandins, triggers tissue inflammation and innate immune activation, and inhibits SARS-CoV-2 replication in lung epithelial cells. TriDAP dihydrochloride increases the RANKL/OPG ratio in mice, reduces bone mass and enhances osteoclast activity, and inhibits new bone formation by decreasing the mineralization deposition rate in mice. TriDAP dihydrochloride can be used in research related to pulpitis, chronic ulcerative colitis, Crohn's disease and SARS-CoV-2 infection.

Arundic Acid is an orally effective astrocyte function modulator and neuroprotective agent. Arundic Acid increases the expression and function of the astrocytic glutamate transporter EAAT1 by activating the ERK, Akt and NF-κB pathways. Arundic Acid attenuates retinal ganglion cell death in a normal-tension glaucoma model. Arundic Acid exerts neuroprotective effects in a mouse model of Parkinson's disease. Arundic Acid is a S100β protein synthesis inhibitor that prevents neurological deficits and brain tissue damage after intracerebral hemorrhage in rats. Arundic Acid downregulates neuroinflammation and astrocytic dysfunction after status epilepticus in immature rats. Arundic Acid is applicable to research related to Parkinson's disease, cerebral ischemia, glaucoma, intracerebral hemorrhage and epilepsy.

TRV055 (TRV120055) is a G protein-biased agonist of angiotensin II type 1 receptors (AT1Rs). TRV120055 induces fibroblast proliferation, overexpression of collagen I and α-SMA, and stress fibre formation in human cardiac fibroblasts. TRV055 activates AT1 receptor/Gαq-mediated signaling pathways, upregulates TGF-β1 and p-ERK1/2. TRV055 induces collagen secretion in adult rat myofibroblasts at a level comparable to Ang II. TRV055 can be used to study the role of G protein-biased signaling of AT1Rs in regulating fibrotic responses^[1]

CHPG sodium salt is a selective mGluR5 agonist, and attenuates SO₂-induced oxidative stress and inflammation through TSG-6/NF-κB pathway in BV2 microglial cells. CHPG sodium salt protects against traumatic brain injury (TBI) in vitro and in vivo by activation of the ERK and Akt signaling pathways..

Endothelin-1 (1-31) (Human) TFA is a potent vasoconstrictor and hypertensive agent. Endothelin-1 (1-31) (Human) TFA is derived from the selective hydrolysis of big ET-1 by chymase.

Pyridoxal Phosphate-d₃ is the deuterium labeled Pyridoxal 5'-phosphate. Pyridoxal 5'-phosphate, the active form of vitamin B6, is an essential cofactor for multiple enzymes, including aromatic l-amino acid decarboxylase that catalyzes the final stage in the production of the neurotransmitters dopamine and serotonin. Pyridoxal 5'-phosphate is the most important coenzyme variant in the process of vitamin B6 intracellular phosphorylation and is interconvertible with other variants, including pyridoxine 5′‐phosphate (PNP) and pyridoxamine 5′-phosphate (PMP).

Prostaglandin A2 (PGA2) is a Cyclopentenone prostaglandin. Prostaglandin A2 induces Caspase-dependent Apoptosis, activates p53. Prostaglandin A2 activates ERK2 and JNK1/SAPK. Prostaglandin A2 shows antiviral activity against HSV-1. Prostaglandin A2 has anti-tumor effects. Prostaglandin A2 can be used for the research of colorectal cancer, colorectal carcinoma, breast carcinoma, and herpetic keratitis.

Tetramethyluric acid (1,3,7,9-Tetramethyluric acid) is an orally active purine alkaloid in Coffea species and Camellia kucha. Tetramethyluric acid exhibits antiviral, and anti-inflammatory activity. Tetramethyluric acid can be used for the research of inflammation disease, and influenza virus infection.

Ganglioside GM2 is a human tumor antigen predominantly found in human tumor cells and fetal brain tissue. As a sialylated glycosphingolipid, Ganglioside GM2 is involved in processes such as cell signaling, adhesion, and motility. Ganglioside GM2 abnormal expression and accumulation are associated with tumors and neurodegenerative disorders. Ganglioside GM2 promotes tumor cell migration and invasion by directly binding to the integrin β1 receptor, activating the FAK/Src/Erk-MAPK signaling pathway, and inducing actin cytoskeleton remodeling.

Eupalinolide A is a Yes-associated protein (YAP) degrader and HSP70 inducer. Eupalinolide A inhibits osteogenic differentiation of tendon-derived stem cells (TDSCs). Eupalinolide A induces autophagy in hepatocellular carcinoma cells via activating the ROS/ERK signaling pathway. Eupalinolide A protects PAM212 cells from UVB-, Menadione (HY-B0332)-, or heat shock-induced apoptosis. Eupalinolide A alleviates trauma-induced heterotopic ossification (HO) of Achilles tendon and inhibits growth of MHCC97-L and HCCLM3 hepatocellular carcinoma xenograft tumors in mice. Eupalinolide A can be used for the study of traumatic heterotopic ossification of tendons and hepatocellular carcinoma.

VSLRGDTRG acetate is a synthetic peptide containing the RGD motif from cadherin 17 (CDH17), which binds to α2β1 integrin and activates its signaling pathway. VSLRGDTRG acetate promotes the high-affinity conformational change of β1 integrin through the RGD motif, enhancing cell adhesion and phosphorylation of FAK and ERK1/2, thereby driving tumor proliferation and metastasis. VSLRGDTRG acetate can be used in research on cancers expressing CDH17, such as colon cancer and pancreatic cancer.

Notoginsenoside Ft1 is an orally active bioactive saponin. Notoginsenoside Ft1 inhibits the PI3K/AKT/mTOR signaling pathway, activates the p38 MAPK and ERK1/2 signaling pathways, and increases the proportion of CD8⁺ T cells, thereby inducing apoptosis and lysosomal cell death in various cancer cells, and promoting angiogenesis. Notoginsenoside Ft1 causes vasodilation by activating glucocorticoid receptors (GR) and estrogen receptor beta (ERβ) in endothelial cells. Notoginsenoside Ft1 increases intracellular Ca²⁺ accumulation, reduces cAMP levels by activating a signaling network mediated through P2Y₁₂ receptors, and promotes platelet aggregation, thereby exerting a procoagulant effect. Notoginsenoside Ft1 inhibits ferroptosis (ferroptosis) in renal tubular epithelial cells by activating the TGR5 receptor, thereby demonstrating a renal protective effect. Notoginsenoside Ft1 acts as a TGR5 agonist and an FXR antagonist to combat obesity and insulin resistance.