Glutathione Peroxidase Activator

GCN2iB is an ATP-competitive, selective GCN2 inhibitor with an IC₅₀ of 2.4 nM. GCN2iB inhibits the activation of the GCN2 pathway and upregulates GPX4. GCN2iB enhances the anticancer effect of ASNase against acute lymphoblastic leukemia. GCN2iB increases left ventricular ejection fraction, while reducing fasting blood glucose and myocardial fibrosis. GCN2iB can be used in research related to acute lymphoblastic leukemia, acute myeloid leukemia and diabetic cardiomyopathy.

Probucol (DH-581) is an anti-hyperlipidemic agent. Probucol activates glutathione peroxidase. Probucol promotes low density lipoprotein (LDL) catabolism, inhibits ABCA1-dependent cholesterol efflux, and decreases HDL-C levels. Probucol also has anti-inflammatory, antioxidant and neuroprotective properties. Probucol can be used for researches on bone, cardiovascular, cancer, neurological, and metabolism-related diseases.

Gingerenone A is an Nrf2-Gpx4 activator that can induce Ferroptosis in liver damage with oral activity. Gingerenone A has anti-inflammatory, anti-diabetic, anti-tumor, and pro-aging effects in mice.

3-Hydroxyphenylacetic acid is an orally active flavonoid metabolite produced by intestinal flora, with blood pressure-lowering activity. 3-Hydroxyphenylacetic acid can also inhibit ferroptosis by upregulating the expression of GPX4, thereby improving spermatogenic dysfunction in aged mice. In addition, abnormal levels of 3-Hydroxyphenylacetic acid are closely related to certain diseases, such as autism spectrum disorders.

gp91 ds-tat, a biological active peptide, is a NADPH oxidase 2 (Nox2) inhibitor. gp91 ds-tat blocks NADPH oxidase-dependent superoxide production. gp91 ds-tat ameliorates high glucose-induced increase in total ROS, LPOs and iron levels. gp91 ds-tat inhibits homocysteine (Hcy)-induced activation of NLRP3 inflammasomes and restores Hcy-inhibited lysosomal TRPML1 channel activity. gp91 ds-tat improves cerebrovascular and cognitive function in APP/PS1 mice. gp91 ds-tat can be used for the study of Alzheimer’s disease (AD), glomerular inflammation and cardiovascular disease.

PKUMDL-LC-101-D04 (GPX4-Activator-1d4) is a glutathione peroxidase 4 (GPX4) allosteric activator (pEC₅₀=4.7). PKUMDL-LC-101-D04 can inhibit ferroptosis and inflammation.

IRF1-IN-2 (Compound I-19) is an IRF1 inhibitor. IRF1-IN-2 decreases the recruitment of IRF1 to the promoter of CASP1. IRF1-IN-2 inhibits cell death signaling pathway (i.e., cleavage of Caspase 1, GSDMD, IL-1 and PARP1; inhibits the Pho of TKB1, upregulates GPX4 and downregulates FACL4). IRF1-IN-2 has a protective effect on ionizing radiation-induced inflammatory skin injury.

Dexpramipexole ((R)-Pramipexole) dihydrochloride is an orally active, blood-brain barrier permeable mitochondrial protective agent. Dexpramipexole dihydrochloride upregulates the expression of Parkin, PINK1, GPX4 and FSP1; binds to mitochondrial F1/Fo-ATP synthase; blocks the Na_v1.8 sodium channel; and inhibits the activation of the NLRP3 inflammasome. Dexpramipexole dihydrochloride induces mitophagy, inhibits ferroptosis, pyroptosis, apoptosis, neuroinflammation and eosinophilopoiesis; maintains mitochondrial function and redox homeostasis; reduces reactive oxygen species production; and decreases myocardial infarct size. Dexpramipexole dihydrochloride is applicable to studies on eosinophilic asthma, myocardial ischemia/reperfusion injury, sepsis-associated encephalopathy, analgesia, and more.

GPX4 activator 2 is a GPX4 activator with a K_a value of 0.426 μM for human GPX4. GPX4 activator 2 reduces lipid hydroperoxide levels, prevents lipid peroxide accumulation, and inhibits ferroptosis. GPX4 activator 2 rescues cell death induced by Erastin (HY-15763). GPX4 activator 2 exerts cardioprotective effects in a mouse model of doxorubicin (HY-15142A)-induced myocardial injury.

Pseudoginsenoside F11 is an orally active neuroprotective agent. Pseudoginsenoside F11 reduces the expression of β-amyloid precursor protein, inhibits the production of Aβ_1-40, downregulates the expression of JNK2, p53 and activated Caspase 3, and restores the activities of SOD and Glutathione peroxidase. Pseudoginsenoside F11 inhibits the excessive activation of μ-Calpain and restores the level of neuronal Nitric oxide synthase. Pseudoginsenoside F11 reduces infarct volume, alleviates cerebral edema, decreases neuronal loss, improves neurological deficits and enhances long-term functional outcomes in transient cerebral ischemia models. Pseudoginsenoside F11 antagonizes Methamphetamine-induced behavioral deficits, dopamine level reduction and neurotoxicity without altering the baseline behaviors of normal mice. Pseudoginsenoside F11 can be used in studies related to Alzheimer's disease, transient cerebral ischemic injury and Methamphetamine-induced neurotoxicity.

Ethylene glycol dimethacrylate is a diester formed by the condensation of Ethylene glycol (HY-Y0338) and Methacrylic acid. Ethylene glycol dimethacrylate is a cross-linking agent for polymers. Ethylene glycol dimethacrylate increases Apoptosis, GPx4, SOD2, ROS. Ethylene glycol dimethacrylate is cytotoxic and genotoxic. Ethylene glycol dimethacrylate exhibits cross-linking activity, enhancing the mechanical properties and stability of materials.

L-α-Lecithin (soybean) is an orally active phospholipid. L-α-Lecithin (soybean) increases the bioavailability of Lutein in plasma and eyes of Rattus norvegicus, enhances plasma Glutathione peroxidase activity, and regulates fatty acids in plasma and tissues.

2-Acetamidophenol (Orthocetamol) is a regulator that targets ferroptosis and glutathione metabolic pathways, is the ortho-regioisomer of Paracetamol (HY-66005). 2-Acetamidophenol has anti-atherosclerotic activity, and inhibiting total cholesterol (TC) and triglyceride (TG) in a zebrafish hyperlipidemia model with IC₅₀s for 30 μM and 40 μM, respectively. 2-Acetamidophenol upregulates the expression of glutathione synthesis-related genes (such as GCLC, GCLM, GSS) and iron ion transport genes (such as FPN1, FTH), reduces the accumulation of intracellular reactive oxygen species (ROS) and ferrous ions (Fe²⁺), and enhances the activity of glutathione peroxidase GPX4, thereby inhibiting macrophage phagocytosis of oxidized low-density lipoprotein (ox-LDL) and foam cell formation.

(R)-β-Aminoisobutyric acid is a β-amino acid. (R)-β-Aminoisobutyric acid boosts myeloperoxidase microbicidal activity against susceptible microorganisms. (R)-β-Aminoisobutyric acid can be used for the research of bacterial infections.

GPX4 activator 1 is an allosteric activator of glutathione peroxidase 4 (GPX4) with a K_d value of 5.86 μM. GPX4 activator 1 binds to a specific region of GPX4 to alter protein binding kinetics and counteract ferroptosis (EC₅₀ = 19.19 μM). GPX4 activator 1 inhibits lipid peroxidation, rescues ferroptotic cell death and maintains cell viability. GPX4 activator 1 can be used in studies related to Doxorubicin (HY-15142A)-induced myocardial injury.

Dexpramipexole ((R)-Pramipexole) is an orally active, blood-brain barrier permeable mitochondrial protective agent. Dexpramipexole upregulates the expression of Parkin, PINK1, GPX4 and FSP1; binds to mitochondrial F1/Fo-ATP synthase; blocks the Na_v1.8 sodium channel; and inhibits the activation of the NLRP3 inflammasome. Dexpramipexole induces mitophagy, inhibits ferroptosis, pyroptosis, apoptosis, neuroinflammation and eosinophilopoiesis; maintains mitochondrial function and redox homeostasis; reduces reactive oxygen species production; and decreases myocardial infarct size. Dexpramipexole is applicable to studies on eosinophilic asthma, myocardial ischemia/reperfusion injury, sepsis-associated encephalopathy, analgesia, and more.

SZ0232 is a selective mPGES-2 inhibitor. SZ0232 binds to the active site of mPGES-2 via hydrogen bonds and π-π stacking, reduces the production of prostaglandin E₂ (PGE₂) and blocks the PGE₂-EP3 pathway. SZ0232 regulates Ferroptosis by activating the heme-dependent p53/SLC7A11/GPX4 axis, inhibits lipid peroxidation, and protects renal tubules. SZ0232 enhances glucose-stimulated insulin secretion, inhibits β-cell senescence, and improves glucose homeostasis. SZ0232 reduces renal lipid accumulation, alleviates fibrosis, and ameliorates renal dysfunction in diabetic mice. SZ0232 inhibits renal cyst growth in polycystic kidney disease models. SZ0232 exhibits an insulinotropic effect that strengthens with the increase of animal age. SZ0232 can be used in studies related to type 2 diabetes, acute kidney injury, diabetic kidney disease, and autosomal dominant polycystic kidney disease.

Picein is an antioxidant and anti-inflammatory agent. Picein can be isolated from the leaves of Picrorhiza kurroa. Picein reduces MDA levels and increases the levels of SOD, GPX and TAC. Picein alleviates oxidative stress and promotes bone regeneration in osteoporotic bone defects by inhibiting Ferroptosis (via activation of the Nrf2/HO-1/GPX4 pathway). Picein prevents scopolamine (HY-N0296)-induced passive avoidance memory impairment in rats. Picein can be used in research related to osteoporotic bone defects and Alzheimer's disease.

Tinoridine hydrochloride is a nonsteroidal anti-inflammatory agent and also has potent radical scavenger and antiperoxidative activity.

2-Phosphoglyceric acid (DL-2-phosphoglyceric acid) is a glycolytic substrate that is catalyzed by enolase to form phosphoenolpyruvate ester (PEP). 2-Phosphoglyceric acid inhibits the ferroptosis pathway by down-regulating ACSL4 and up-regulating GPX4, and has significant neuroprotective effects. 2-Phosphoglyceric acid reflects the overall metabolic state and flux of the cell.