2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. NADPH Oxidase

NADPH Oxidase

NOX

NADPH Oxidase

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NADPH-oxidase (NOX) is a highly regulated dynamic complex comprising membrane and cytosolic proteins and is the major source of nonmitochondrial cellular reactive oxygen species (ROS). The ROS generated by NADPH oxidases have crucial roles in various physiological processes, including innate immunity, modulation of redox-dependent signalling cascades, and as cofactors in the production of hormones.

NOX enzymes are a family of transmembrane proteins comprising seven members (NOX1-NOX5 and DUOX1 and DUOX2), each with a specific tissue distribution and activation mechanism. They catalyze the reduction of molecular oxygen to superoxide anion, which in turn reacts quickly to generate other ROS, such as hydrogen peroxide. Although basic NOX activity is crucial for normal physiology, overshooting activity of NOX enzymes leads to disease. NADPH oxidases are increasingly recognized as interesting drug targets.

NADPH Oxidase Isoform Specific Products:

NADPH Oxidase Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-10071
    Y-27632
    		Activator 99.91%
    Y-27632 is a ROCK inhibitor with Ki values of 220 nM and 300 nM for ROCK1 and ROCK2, respectively. Y-27632 exerts anti-inflammatory and immunomodulatory effects in systemic lupus erythematosus models by inhibiting the ROCK/NF-κB pathway. Y-27632 enhances autophagy by inhibiting the AKT/mTOR pathway, thereby inducing apoptosis apoptosis in oral squamous cell carcinoma. Y-27632 induces the formation of tunneling nanotubes in ARPE-19 cells and significantly enhances mitochondrial transfer through these channels. Y-27632 promotes neurite outgrowth in PC12 cells by activating the Rac1/NOX1/ROS/AKT/PAK1 signaling cascade.
    Y-27632
  • HY-100965
    Diphenyleneiodonium chloride
    		Inhibitor 99.85%
    Diphenyleneiodonium chloride is a NADPH oxidase (NOX) inhibitor and also functions as a TRPA1 activator with an EC50 of 1 to 3 μM. Diphenyleneiodonium chloride selectively inhibits intracellular reactive oxygen species.
    Diphenyleneiodonium chloride
  • HY-W010342
    6-Aminonicotinamide
    		99.95%
    6-Aminonicotinamide, a potent antimetabolite of nicotinamide, is competitive NADP+-dependent enzyme glucose-6-phosphate dehydrogenase (G6PD) inhibitor (Ki=0.46 μM). 6-Aminonicotinamide resultis ATP depletion and synergizes with DNA-crosslinking chemotherapy agents, such as Cisplatin (HY-17394), in killing cancer cells.
    6-Aminonicotinamide
  • HY-18950
    GSK2795039
    		Inhibitor 99.11%
    GSK2795039 is a NADPH oxidase 2 (NOX2) inhibitor with a mean pIC50 of 6 in different cell-free assays. GSK2795039 inhibits reactive oxygen species (ROS) production and NADPH consumption. GSK2795039 reduces apoptosis.
    GSK2795039
  • HY-12298
    Setanaxib
    		Inhibitor 99.81%
    Setanaxib (GKT137831) is a selective NADPH oxidase (NOX1/4) inhibitor with Kis of 140 and 110 nM, respectively.
    Setanaxib
  • HY-173096
    NCATS-SM7270
    		Inhibitor
    NCATS-SM7270 is a highly specific NOX2 inhibitor, with an IC50 of 4.09 μM. NCATS-SM7270 protects mice from mild traumatic brain injury.
    NCATS-SM7270
  • HY-185008
    CPP11G
    		Inhibitor
    CPP11G (Compound 11g) is a highly selective NADPH oxidase 2 (Nox2) inhibitor (IC50=20 μM). CPP11G is promising for research of inflammatory diseases (e.g., vasculitis, atherosclerosis) and Nox2-overactivated pathologies (e.g., ischemia-reperfusion injury).
    CPP11G
  • HY-136271
    MJ33
    		Inhibitor
    MJ-33 is a competitive phospholipase A₂ (PLA₂) inhibitor with an IC50 of 0.3 μM. MJ-33 inhibits the activation of NOX2 by blocking the PLA₂ activity of Prdx6, thereby reducing the production of ROS. MJ-33 effectively inhibits the activity of acidic PLA₂ (pH 4.0), reduces the degradation of pulmonary surfactant phosphatidylcholine (PC), but has no effect on alkaline PLA₂ (pH 8.5). MJ-33 significantly alleviates lung oxidative damage induced by ischemia-reperfusion (I/R). MJ-33 significantly inhibits the invasive, migratory and adhesive abilities of prostate cancer cells by suppressing the MAPK, AKT, NF-κB and AP-1 signaling pathways. MJ-33 can be used to study ROS-related diseases and prostate cancer.
    MJ33
  • HY-N0088
    Apocynin
    		Inhibitor 99.94%
    Apocynin is a selective NADPH-oxidase inhibitor with an IC50 of 10 μM. Apocynin improves acute lung inflammation in Carrageenan (HY-125474)-induced pleurisy mice model. Apocynin can also be used for cancer research. Apocynin reverses the aging process in mesenchymal stem cells to promote osteogenesis and increases bone mass.
    Apocynin
  • HY-100111
    GLX351322
    		Inhibitor 99.48%
    GLX351322 is an inhibitor of NADPH oxidase 4 (Nox4), and inhibits hydrogen peroxide production from NOX4-overexpressing cells with an IC50 of 5 μM.
    GLX351322
  • HY-12804
    VAS2870
    		Inhibitor 98.79%
    VAS2870 is a NADPH oxidase (NOX) inhibitor.
    VAS2870
  • HY-123962
    G6PD activator AG1
    		99.54%
    G6PD activator AG1 is a potent and selective glucose-6-phosphate dehydrogenase (G6PD) agonist with an EC50 of 3 μM. G6PD is an oxidoreductase that catalyzes the oxidation of glucose-6-phosphate to 6-phosphogluconolactone and the simultaneous reduction of NAD phosphate (NADP) to reduced NADP (NADPH). G6PD activator AG1 can reduce hemolysis of human erythrocytes.
    G6PD activator AG1
  • HY-113449
    Ubiquinone-1
    		Substrate 99.0%
    Ubiquinone-1 is an intermediate in the synthesis of Coenzyme Q. Ubiquinone-1 can be reduced by NADPH oxidase, hepatoma cells, Ascorbic acid (HY-B0166).
    Ubiquinone-1
  • HY-12805
    ML171
    		Inhibitor 99.53%
    ML171 (2-Acetylphenothiazine;2-APT) is a potent and selective NADPH oxidase 1 (Nox1) inhibitor that blocks Nox1-dependent ROS generation, with an IC50 of 0.25 μM in HEK293-Nox1 confirmatory assay.
    ML171
  • HY-120801
    APX-115
    		Inhibitor 99.90%
    APX-115 (Ewha-18278) is a potent, orally active pan NADPH oxidase (Nox) inhibitor with Ki values of 1.08 μM, 0.57 μM, and 0.63 μM for Nox1, Nox2 and Nox4, respectively. APX-115 effectively prevents kidney injury.
    APX-115
  • HY-P5381
    gp91 ds-tat
    		Inhibitor 99.00%
    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.
    gp91 ds-tat
  • HY-B0807A
    Prochlorperazine dimaleate
    		Inhibitor ≥98.0%
    Prochlorperazine dimaleate is an orally active phenothiazine-type dopamine D2 receptor (D2R) antagonist. Prochlorperazine exhibits anti-cancer activity in vitro against various cancer cell lines. Prochlorperazine dimaleate exhibits IC50 values of 6.4 μM, 4.5 μM and 2.3 μM for NOX1, NOX2 and NOX5, respectively. Prochlorperazine dimaleate has antedesmosidic activity against dengue virus (DENV). Prochlorperazine dimaleate can be used for research on nausea, vomiting, migraine, and schizophrenia.
    Prochlorperazine dimaleate
  • HY-W614507
    Dihydronicotinamide riboside
    		Activator
    Dihydronicotinamide riboside is a potent NAD+ concentration enhancer. Dihydronicotinamide riboside modulates targets BAX, PUMA, NQO2, and IκB kinase. Dihydronicotinamide riboside mediates apoptosis, induces pro-oxidant activity, mitochondrial dysfunction, metabolic dysregulation, redox modulation, and pro-inflammatory M1 phenotype induction. Dihydronicotinamide riboside increases intracellular and mitochondrial NAD+ levels, maintains cell survival against NAD+-depleting genotoxins. Dihydronicotinamide riboside can be used for the research of hepatocellular carcinoma.
    Dihydronicotinamide riboside
  • HY-126213
    1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium
    		99.0%
    Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium (18:1 Lyso-PS) is a modified PS product generated following NADPH oxidase activation and Lyso-PS signal transduction. 1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium signals through macrophage G2A to enhance the phagocytic uptake of PS-dependent apoptotic (apoptosis) neutrophils and PS-exposed activated neutrophils. 1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium enhances macrophage phagocytic uptake of apoptotic cells, carboxylate-modified microspheres, and PS-exposed non-apoptotic activated neutrophils. 1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium serves as an acyl acceptor substrate for the lysophosphatidyltransferase At1g78690p to generate diacylphosphatidylserine. 1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium reduces the secretion of IL-8 and decreases the proportion of viable colon cancer cells. 1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium is applicable to studies on peritonitis and inflammatory bowel disease.
    1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-L-serine sodium
  • HY-115062
    MJ33 lithium salt
    		Inhibitor 99.0%
    MJ-33 lithium salt is a competitive phospholipase A2 (PLA2) inhibitor with an IC50 of 0.3 μM. MJ-33 lithium salt inhibits NOX2 activation and reduces ROS production by blocking the PLA2 activity of Prdx6. MJ-33 lithium salt effectively inhibits the activity of acidic PLA2 (pH 4.0) and reduces the degradation of alveolar surfactant phosphatidylcholine (PC), but exerts no effect on alkaline PLA2 (pH 8.5). MJ-33 lithium salt significantly alleviates lung oxidative injury induced by ischemia-reperfusion (I/R). MJ-33 lithium salt significantly inhibits the invasion, migration and adhesion abilities of prostate cancer cells by suppressing the MAPK, AKT, NF-κB and AP-1 signaling pathways. MJ-33 lithium salt can be used for the research of ROS-related diseases and prostate cancer.
    MJ33 lithium salt
Cat. No. Product Name / Synonyms Application Reactivity
NADPH Oxidase Isoform Comparison

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