ERK1 Modulator

Secretoneurin, rat is a 33-amino acid neuropeptide produced by proteolytic processing of chromogranin II, widely distributed in the central and peripheral nervous systems, and its release is calcium-dependent. Secretoneurin, rat modulates the activities of caspase-3, caspase-1, the NLRP3 inflammasome, IGF-1R, VEGFR1, VEGFR2, FGFR3, AMPK, ERK1/2/MAPK, and Jak2/Stat3 pathways. Secretoneurin, rat regulates neuronal apoptosis, synaptic structure, inflammation, neurogenesis, angiogenesis, oxidative stress, cardiomyocyte hypertrophy, dopamine release, and cell migration and proliferation. Secretoneurin, rat is used in studies of global cerebral ischemia, myocardial infarction, stroke, and cardiac hypertrophy.

Pheophytin a is a multi-target inhibitor, anticancer agent, antioxidant and antiviral agent. Pheophytin a directly binds to and inhibits HCV-NS3/4A protease (IC₅₀=0.89 μM) to block viral replication. Pheophytin a also scavenges free radicals, reduces ferric ions, and exhibits cytotoxic activity against breast cancer cells. Pheophytin a effectively inhibits LPS-induced production of nitric oxide, prostaglandin E2, NOS2 and COX-2, as well as various pro-inflammatory cytokines, by downregulating the transcription levels of inflammatory mediators and blocking the ERK1/2 and STAT-1 pathways. In a low nerve growth factor environment, Pheophytin a also enhances ERK1/2 phosphorylation and synergistically promotes neurite outgrowth through MAPK pathway. Pheophytin a can be used to investigate the pathogenic mechanisms of diseases including chronic hepatitis C, sepsis, breast cancer and Alzheimer's disease.

Physalin B is an orally active anti-inflammatory and anticancer agent. Physalin B can be isolated from Physalis alkekengi L. var. Franchetii. Physalin B inhibits the activation of the NF-κB, NLRP3 inflammasome, STAT3, PI3K/Akt and Hedgehog signaling pathways, regulates the phosphorylation levels of GSK-3β, p38 MAPK, ERK1/2 and JNK, and promotes the nuclear translocation of NRF2. Physalin B reduces the levels of pro-inflammatory cytokines and factors, induces mitochondrial reactive oxygen species (mito-ROS) production, Apoptosis, G2/M cell cycle arrest and incomplete Autophagy, alters cytoskeleton structure and alleviates oxidative stress. Physalin B reduces cancer cell viability, ameliorates liver and lung tissue damage and alleviates liver fibrosis. Physalin B can be used in research related to ulcerative colitis, breast cancer, acute lung injury, colon cancer, non-alcoholic steatohepatitis, liver fibrosis, lung cancer, pancreatic cancer, lymphoma, ovarian cancer, sarcoma and leukemia.

Antitumor agent-226 is a DNMT3A inhibitor and epigenetic modulator. Antitumor agent-226 inhibits cell proliferation and migration by downregulating DNA Methyltransferase, reducing global DNA methylation, and modulating JNK, ERK1/2, and p38 phosphorylation through the MAPK pathway to induce mitochondria-dependent apoptosis, G2/M phase arrest, autophagy, and ROS production. Antitumor agent-226 can be used for research on prostate cancer.