2. Signaling Pathways
  3. GPCR/G Protein
  4. Leukotriene Receptor

Leukotriene Receptor

Leukotriene Receptor

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Leukotriene Receptor (cys-LTs) are a family of potent bioactive lipids that act through two structurally divergent G protein-coupled receptors, termed the CysLT1 and CysLT2 receptors. The cysteinyl leukotrienes LTC4, LTD4, and LTE4 are important mediators of human bronchial asthma. Leukotriene Receptor is a member of the superfamily of G protein-coupled receptors and uses a phosphatidylinositol-calcium second messenger system. Activation of CysLT1 by LTD4 results in contraction and proliferation of smooth muscle, oedema, eosinophil migration and damage to the mucus layer in the lung. Leukotriene receptor antagonists, called LTRAs for short, are a class of oral medication that is non-steroidal. They may also be referred to as anti-inflammatory bronchoconstriction preventors. LTRAs work by blocking a chemical reaction that can lead to inflammation in the airways.

Leukotriene Receptor Isoform Specific Products:

Leukotriene Receptor Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-139112
    Leukotriene B4 dimethyl amide
    Leukotriene B4 dimethyl amide, an immunomodulator, stimulates contraction of isolated guinea pig lung entities. Leukotriene B4 (LTB(4)) also stimulates human neutrophil migration, and LTB(4) antagonists may have anti-inflammatory activity in inflammatory pathophysiology.
    Leukotriene B4 dimethyl amide
  • HY-17492S2
    Zafirlukast-13C,d6
    		Antagonist
    Zafirlukast-13C,d6 is the 13C- and deuterium labeled Zafirlukast. Zafirlukast (ICI 204219) is a potent orally active leukotriene D4 (LTD4) receptor antagonist. Zafirlukast shows anti-asthmatic, anti-inflammatory and anti-bacterial effects.
    Zafirlukast-<sup>13</sup>C,d<sub>6</sub>
  • HY-120539
    Enofelast
    		Inhibitor
    Enofelast (BI-L-239), a 5-lipoxygenase (5-LO) inhibitor, exhibits an IC50 of 2.48 μM for inhibition of calcium ionophore-induced LTB4 generation.
    Enofelast
  • HY-106064A
    Piriprost potassium
    		Inhibitor
    Piriprost (U-60,257B) potassium is an inhibitor of leukotriene synthesis. Piriprost potassium inhibits the release of both leukotriene and histamine with an IC50 of 0.11 μM from isolated porcine lung cells. Piriprost potassium increases alkaline phosphatase (ALP) activity in cultured endometrial stromal cells.
    Piriprost potassium
  • HY-123014
    (Rac)-SC-45694
    		Agonist
    (Rac)-SC-45694 is a racemate of SC-45694. SC-45694 has full LTB4 agonist activity for neutrophil chemotaxis and has antagonist activity against LTB4-induced neutrophil degranulation.
    (Rac)-SC-45694
  • HY-138050
    Nyasol
    		Inhibitor
    Nyasol ((-)-Nyasol) is an active compound that has antifungal, antibacterial, antileishmanial, hyaluronidase inhibition activities. Nyasol inhibits LTB4 binding to human neutrophils. Nyasol suppresses neuroinflammatory response through the inhibition of I-κB degradation in LPS (HY-D1056)-stimulated BV-2 microglial cells.
    Nyasol
  • HY-130138
    (5S,6S)-DiHETE
    (5S,6S)-DiHETE is an enantiomer of (5,6)-DiHETEs.
    (5S,6S)-DiHETE
  • HY-108162A
    Ataquimast
    		Inhibitor
    Ataquimast is a COX-2 inhibitor that inhibits the release of leukotrienes, TNF-α and GM-CSF. Ataquimast can be used in the study of advanced receptor-positive breast cancer.
    Ataquimast
  • HY-117896
    SC-50605
    		Antagonist
    SC-50605 and SC-51146 are second-generation leukotriene B4 (LTB4) receptor antagonists that effectively inhibit LTB4-induced chemotaxis in guinea pigs. SC-50605 targets the LTB4 receptor and has the potential to inhibit inflammatory diseases such as asthma, rheumatoid arthritis, and skin diseases..
    SC-50605
  • HY-130138A
    (5S,6R)-DiHETE
    		Activator
    (5S,6R)-DiHETE is an enantiomer of (5,6)-DiHETEs. (5S,6R)-DiHETE can be recognized by leukotriene receptors (LTD4 receptors). (5S,6R)-DiHETE can induce guinea pig isolated ileum contraction with an EC50 of 1.3 μM, and this effect can be inhibited by LTD4 receptor antagonists.
    (5S,6R)-DiHETE
  • HY-114641
    BIIL-260
    		Antagonist
    BIIL-260 is a potent and long-acting orally active leukotriene B(4) receptor LTB4 antagonist, with anti-inflammatory activity. BIIL-260 interacts with the LTB4 receptor in a saturable, reversible, and competitive manner, has high affinity to the LTB4 receptor on isolated human neutrophil cell membranes with the Ki value of 1.7 nM.
    BIIL-260
  • HY-123575
    LY 245769
    		Inhibitor
    LY 245769, a omega-trifluoro analog, is a leukotriene E4 (LTE4) inhibitor. LY 245769 interfers the omega-oxidation of N-acetyl-LTE4 and leukotriene B4 (LTB4) with IC50s of 4 μM.
    LY 245769
  • HY-13315S
    Montelukast-d6
    		Antagonist
    Montelukast-d6 is the deuterium labeled Montelukast (sodium). Montelukast sodium is a potent, selective and orally active antagonist of cysteinyl leukotriene receptor 1 (Cysltr1). Montelukast sodium can be used for the reseach of asthma and liver injury. Montelukast sodium also has an antioxidant effect in intestinal ischemia-reperfusion injury, and could reduce cardiac damage[1].
    Montelukast-d<sub>6</sub>
  • HY-142521
    BLT2 probe 1
    BLT2 probe 1 (compound 13) is a fluorescent probe based on the synthetic BLT2 agonist CAY10583. BLT2 is a promising target for diabetic wound healing and gastrointestinal lesions. BLT2 probe 1 is suitable to investigate the pharmacology of BLT2 receptor ligands in a variety of assay systems.
    BLT2 probe 1
  • HY-113758
    LY 163443
    		Antagonist
    LY 163443 is a selective antagonist of leukotrienes D4 (LTD4) and E4 (LTE4). LY 163443 can antagonize LTD4-induced contractions of guinea pig ileum, trachea, and lung parenchyma. LY 163443 also inhibits tracheal contractions to LTE4.
    LY 163443
  • HY-P3318
    Boc-Phe-Leu-Phe-Leu-Phe
    		Antagonist 98.03%
    Boc-Phe-Leu-Phe-Leu-Phe, a chemotactic peptide antagonist, abolishes the FMLP-induced release of peptide leukotrienes.
    Boc-Phe-Leu-Phe-Leu-Phe
  • HY-120931
    LY329146
    		Inhibitor
    LY329146, a Raloxifene (HY-13738) analog, is multidrug resistance protein (MRP1) inhibitor. LY329146 inhibits leucotriene C4 ( LTC4) transport with an IC50 of 0.8 μM.
    LY329146
  • HY-N15230
    Torososide B
    Torososide B is an antiallergic compound that inhibits calcium ionophore A-induced leukotriene release from rat peritoneal mast cells.
    Torososide B
  • HY-149082
    LTB4 antagonist 1
    		Antagonist
    LTB4 antagonist 1, a carboxamide-acid compound, is a potent Leukotriene B4 (LTB4) antagonist with an IC50 of 288 nM. LTB4 antagonist 1 has significant anti-inflammatory properties.
    LTB4 antagonist 1
  • HY-134123
    Lipoxin B4 methyl ester
    Lipoxin B4 (LXB4) methyl ester is a lipid soluble prodrug form of the transcellular metabolite LXB4. LXB4 is a positional isomer of LXA4 produced by the metabolism of 15-HETE or 15-HpETE by human leukocytes. At a concentration of 100 nM, LXB4 inhibits polymorphonuclear leukocyte (PMN) migration stimulated by leukotriene B4 (LTB4; Item No. 20110) and inhibits LTB4-induced adhesion of PMNs with an IC50 value of 0.3 nM.
    Lipoxin B4 methyl ester
Cat. No. Product Name / Synonyms Application Reactivity
Leukotriene Receptor Isoform Comparison

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