1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Lipoxygenase

Lipoxygenase

LOX

Lipoxygenases (LOXs) are a family of enzymes that are responsible for the metabolism of arachidonic and docosahexaenoic acid and for the formation of several eicosanoids and docosanoids, including leukotrienes, lipoxins and neuroprotectins. Depending on cells' redox state and other milieu conditions, these enzymes are engaged in oxidative stress and cell death mechanisms or in cell protection. Lipoxygenases are lipid peroxidizing enzymes, implicated in the pathogenesis of inflammatory and hyperproliferative diseases, which represent potential targets for pharmacological intervention.

Lipoxygenases are classified on the basis of site of arachidonate oxygenation into 5-, 8-, 9-, 11-, 12- and 15-LOX. The prominent animal LOXs are 5-LOX, 8-LOX, 12-LOX and 15-LOX, while the plant LOXs are mostly 5-LOX and 15-LOX. Among these, 5-LOX is the most predominant isoform associated with the formation of 5-hydroperoxyeicosatetraenoic acid (5-HpETE) and other bioactive lipid mediators.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-155159
    COX-2/15-LOX-IN-2
    Inhibitor
    COX-2/15-LOX-IN-2 is a potent dual COX-2 and 15-LOX inhibitor with IC50 values of 0.065?μM and 1.86?μM, respectively. COX-2/15-LOX-IN-2 has potent antioxidant activity.
    COX-2/15-LOX-IN-2
  • HY-118828A
    (9S,13R)-12-Oxo phytodienoic acid
    ≥99.0%
    9S,13R)-12-Oxo phytodienoic acid is the isomerization of 12-oxo PDA (HY-118828). (9S,13R)-12-Oxo phytodienoic acid is a lipoxygenase metabolite in the leaves of green plants.
    (9S,13R)-12-Oxo phytodienoic acid
  • HY-N2074R
    Picrinine (Standard)
    Inhibitor
    Picrinine (Standard) is the analytical standard of Picrinine. This product is intended for research and analytical applications. Picrinine, an akuammiline alkaloid, is isolated from the leaves of Alstonia scholaris. Picrinine exhibits anti-inflammatory activity through inhibition of the 5-lipoxygenase enzyme.
    Picrinine (Standard)
  • HY-139055
    NCTT-956
    Inhibitor
    NCTT-956 is a very effective platelet 12-lipoxygenase (12-LOX) activity-specific inhibitor.
    NCTT-956
  • HY-161315
    15-LOX-IN-1
    Inhibitor
    15-LOX-IN-1 (Compound 7c) is a 15-LOX inhibitor with a IC50 value of 1.92 μM. 15-LOX-IN-1 has anti-inflammatory activity.
    15-LOX-IN-1
  • HY-131895
    5,6-Dehydroarachidonic acid
    Inhibitor
    5,6-Dehydroarachidonic acid is a 5-lipoxygenase (Lipoxygenase) inhibitor that inhibits the biosynthesis of leukotrienes. However, 5,6-Dehydroarachidonic acid had no effect on vascular cell proliferation.
    5,6-Dehydroarachidonic acid
  • HY-19114
    WY-50295
    Inhibitor
    WY-50295 is an orally active and selective 5-lipoxygenase inhibitor. WY-5029 inhibits LTB4 formation in rat whole blood leukocytes (IC50: 40 μM and oral ED50: 18 mg/kg). WY-50295 can be used in the study of asthma and other leukotriene-dependent diseases.
    WY-50295
  • HY-N12987
    Caffeoylcalleryanin
    Inhibitor
    Caffeoylcalleryanin is a potent 15-lipoxygenase inhibitor with an IC50 value of 1.59 µM. Caffeoylcalleryanin shows no cytotoxic.
    Caffeoylcalleryanin
  • HY-116638A
    AHR-5333 (mandelate)
    Inhibitor
    AHR-5333 mandelate is a selective human blood neutrophil 5-lipoxygenase inhibitor. AHR-5333 mandelate exhibits potent, long-acting activity in rat and guinea pig in vivo models of immediate hypersensitivity.
    AHR-5333 (mandelate)
  • HY-N0232R
    Psoralidin (Standard)
    Inhibitor
    Psoralidin (Standard) is the analytical standard of Psoralidin. This product is intended for research and analytical applications. Psoralidin is a dual inhibitor of COX-2 and 5-LOX, regulates ionizing radiation (IR)-induced pulmonary inflammation.Anti-cancer, anti-bacterial, and anti-inflammatory properties. Psoralidin significantly downregulates NOTCH1 signaling. Psoralidin also greatly induces ROS generation.
    Psoralidin (Standard)
  • HY-145952
    (2E,9Z)-Octadeca-2,9-dienoic acid
    (2E,9Z)-Octadeca-2,9-dienoic acid, a polyunsaturated fatty acid, can be used for the research of lipoxygenase-dependent metabolism.
    (2E,9Z)-Octadeca-2,9-dienoic acid
  • HY-155161
    COX-2/15-LOX-IN-4
    Inhibitor
    COX-2/15-LOX-IN-4 (compound 5i) is a dual inhibitor of COX-2/15-LOX with IC50s of 0.075 μM and 1.97 μM, respectively. COX-2/15-LOX-IN-4 can inhibit LPS-induced cell production of promoting cytokines (IL-6, ROS) with specific anti-inflammatory activity.
    COX-2/15-LOX-IN-4
  • HY-163736
    mPGES-1/5-LOX-IN-1
    Inhibitor
    mPGES-1/5-LOX-IN-1 (compound 3j) is a potent and orally active mPGES-1 and 5-LOX dual inhibitor with IC50 values of 0.92, 1.89 µM, respectively. mPGES-1/5-LOX-IN-1 shows anti-inflammatory impact.
    mPGES-1/5-LOX-IN-1
  • HY-163355
    COX-2/15-LOX-IN-5
    Inhibitor
    COX-2/15-LOX-IN-5 (Compound 4f) is a dual inhibitor of COX-2/15-LOX. COX-2/15-LOX-IN-5 attenuates increased NF-κB activation in RAW 264.7 macrophages mediated by lipopolysaccharide (HY-D1056). COX-2/15-LOX-IN-5 has anti-inflammatory and antioxidant activities.
    COX-2/15-LOX-IN-5
  • HY-114565
    LY221068
    Inhibitor
    LY221068 is an anti-oxidant and an orally active, potent inhibitor of iron-dependent lipid peroxidation and 5-lipoxygenase with antiinflammatory properties. LY221068 inhibits bone damage and paw swelling in the Freund's Complete adjuvant (HY-153808) induced arthritis (FCA) model of rats. LY221068 is promising for research of arthritis.
    LY221068
  • HY-120502
    5-LOX-IN-6
    Inhibitor
    5-LOX-IN-6 (compound 11a) is a direct and reversible inhibitor of 5-lipoxygenase (5-LO). 5-LOX-IN-6 inhibits 5-LO activity in human neutrophils and recombinant human 5-LO with IC50 values of 0.23 and 0.086 µM, respectively. 5-LOX-IN-6 prevents leukotriene biosynthesis. 5-LOX-IN-6 can be used for inflammatory and allergic disorders research.
    5-LOX-IN-6
  • HY-N1942R
    5-O-Demethylnobiletin (Standard)
    Inhibitor
    5-O-Demethylnobiletin (Standard) is the analytical standard of 5-O-Demethylnobiletin. This product is intended for research and analytical applications. 5-O-Demethylnobiletin (5-Demethylnobiletin), a polymethoxyflavone isolated from Citrus jambhiri Lush., is a direct inhibition of 5-LOX (IC50=0.1 μM), without affecting the expression of COX-2. 5-O-Demethylnobiletin (5-Demethylnobiletin) has anti-inflammatory activity, inhibits leukotriene B (4)(LTB4) formation in rat neutrophils and elastase release in human neutrophils with an IC50 of 0.35 μM.
    5-O-Demethylnobiletin (Standard)
  • HY-113826
    L-656224
    Inhibitor
    L-656224 is an orally active, potent and selective inhibitor of leukotriene biosynthesis in intact rat and human leukocytes and CXBG mastocytoma cells (IC50 values, 18-240 nM) and of human leukocyte and porcine leukocyte 5-lipoxygenase (IC50, 4 x 10-7 M). L-656224 is promising for research of asthma and peripheral analgesic agents.
    L-656224
  • HY-117085
    Lobaric acid
    Inhibitor
    Lobaric acid is a depsipeptide metabolite isolated from Stereocaulon lichen with antioxidant, antiproliferative, antiviral and enzyme inhibitory activities. Lobaric acid scavenges superoxide free radicals (IC50=97.9 μM) and inhibits cancer cell proliferation (EC50 of 15.2-63.9 μg/mL against leukemia, colorectal, gastric, breast, ovarian, prostate, pancreatic and lung cancer cell lines). Lobaric acid inhibits protein tyrosine phosphatase 1B (PTP1B; IC50=0.87 μM for human recombinant enzyme) and 12(S)-HETE produced by 12(S)-lipoxygenase (IC50=28.5 μM). Lobaric acid (250 μM) also reduced pathological changes in tobacco leaves infected with tobacco mosaic virus (TMV).
    Lobaric acid
  • HY-W747548
    12(S)-HEPE
    12(S)-HEPE is a monohydroxy fatty acid synthesized from EPA by the action of 12-LO. Unstimulated neutrophils metabolize 12(S)-HEPE to 12(S),20-diHEPE, whereas stimulated neutrophils produce 5(S),12(S)-HEPE via the 5-lipoxygenase pathway. The competitive action of 12(S)-HEPE with arachidonic acid as a substrate for 5-LO in the formation of leukotrienes may provide a basis for the anti-inflammatory potential of ω-3 fatty acids.
    12(S)-HEPE
Cat. No. Product Name / Synonyms Application Reactivity

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