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-19989A
    MK-571 sodium
    		Antagonist 99.24%
    MK-571 (L-660711) sodium is an orally active, potent and selective competitive leukotriene D4 (LTD4) receptor antagonist, with Ki values of 0.22 and 2.1 nM in guinea pig and human lung membranes, respectively. MK-571 sodium is also a inhibitor of multidrug resistance-associated protein MRP4 (ABCC4) and ABCC1 (MRP1). MK-571 sodium inhibits constitutive and antigen-stimulated S1P (sphingosine-1-phosphate) release.
    MK-571 sodium
  • HY-14166
    MK-886
    		Inhibitor 99.77%
    MK-886 (L 663536) is a potent, cell-permeable and orally active FLAP (IC50 of 30 nM) and leukotriene biosynthesis (IC50s of 3 nM and 1.1 μM in intact leukocytes and human whole blood, respectively) inhibitor. MK-886 is also a non-competitive PPARα antagonist and can induce apoptosis.
    MK-886
  • HY-13315
    Montelukast sodium
    		Antagonist 99.84%
    Montelukast sodium (MK0476) is a potent, selective and orally active antagonist of cysteinyl leukotriene receptor 1 (CysLT1). 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. Montelukast sodium decreases eosinophil infiltration into the asthmatic airways. Montelukast sodium can also be used for COVID-19 research.
    Montelukast sodium
  • HY-B0539
    Desloratadine
    		Antagonist 99.83%
    Desloratadine (Sch34117) is an orally active and selective H1 receptor antagonist (Ki=0.9 nM) with anti-inflammatory and anti-allergic activities. Desloratadine inhibits the release of histamine and LTC4 from human basophils and targets the regulatory signals of IL-4 and IL-13 production in basophils. Desloratadine significantly alleviates SAR symptoms in patients with concurrent asthma and can be used in the study of seasonal allergic rhinitis and chronic idiopathic urticaria.
    Desloratadine
  • HY-17492
    Zafirlukast
    		Antagonist 99.89%
    Zafirlukast (ICI 204219) is a potent orally active leukotriene D4 (LTD4) receptor antagonist. Zafirlukast shows anti-asthmatic, anti-inflammatory and anti-bacterial effects.
    Zafirlukast
  • HY-164650
    Pirodomast
    		Inhibitor
    Pirodomast (Sch 37224) is a leukotriene formation inhibitor. Pirodomast inhibits LTD4 andthromboxane B2 release by anaphylactic guinea pig lung with the IC50 values of 3.9 and 1.9 μM, respectively. Pirodomast can be used for study of asthma.
    Pirodomast
  • 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-13628A
    Etalocib sodium
    		Antagonist
    Etalocib (LY293111) sodium, an orally active leukotriene B4 receptor antagonist, inhibits the binding of [3H]LTB4, with a Ki of 25 nM. Etalocib sodium prevents LTB4-induced calcium mobilization with an lC50 of 20 nM. Etalocib sodium induces apoptosis.
    Etalocib sodium
  • HY-13315A
    Montelukast
    		Antagonist 99.94%
    Montelukast (MK0476 free base) is a potent, selective and orally active antagonist of cysteinyl leukotriene receptor 1 (CysLT1). Montelukast can be used for the reseach of asthma and liver injury. Montelukast also has an antioxidant effect in intestinal ischemia-reperfusion injury, and could reduce cardiac damage. Montelukast decreases eosinophil infiltration into the asthmatic airways. Montelukast can also be used for COVID-19 research.
    Montelukast
  • HY-107608
    Leukotriene B4
    		≥98.0%
    Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases. Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.
    Leukotriene B4
  • HY-N6607
    Tryptanthrin
    		Inhibitor 99.89%
    Tryptanthrin is an indole quinazoline that could be an alkaloid from indigo-bearing plants. Tryptanthrin is a potent and orally active cellular Leukotriene (LT) biosynthesis inhibitor. Tryptanthrin has anticancer activity. Tryptanthrin suppresses the expression levels of NOS1, COX-2, and NF-κB and regulates the expression levels of IL-2, IL-10, and TNF-α.
    Tryptanthrin
  • HY-B0290
    Pranlukast
    		Antagonist 98.18%
    Pranlukast is a highly potent, selective and competitive antagonist of peptide leukotrienes. Pranlukast inhibits [3H]LTE4, [3H]LTD4, and [3H]LTC4 bindings to lung membranes with Kis of 0.63±0.11, 0.99±0.19, and 5640±680 nM, respectively.
    Pranlukast
  • HY-19989
    MK-571
    		Antagonist 98.66%
    MK-571 (L-660711) is an orally active, potent and selective competitive leukotriene D4 (LTD4) receptor antagonist, with Ki values of 0.22 and 2.1 nM in guinea pig and human lung membranes, respectively. MK-571 is also a MRP4 and ABCC1 (MRP1) inhibitor. MK-571 inhibits constitutive and antigen-stimulated S1P (sphingosine-1-phosphate) release.
    MK-571
  • HY-19193
    CP-105696
    		Antagonist 99.81%
    CP-105696 is a potent and selective Leukotriene B4 Receptor antagonist, with an IC50 of 8.42 nM.
    CP-105696
  • HY-B0174
    Olsalazine Disodium
    		99.89%
    Olsalazine Disodium is an anti-inflammatory compound that works in inflammatory bowel disease and ulcerative colitis.
    Olsalazine Disodium
  • HY-15874
    Fiboflapon
    		Inhibitor 99.50%
    Fiboflapon (GSK2190915; AM-803) is a potent and orally bioavailable 5-lipoxygenase-activating protein (FLAP) inhibitor with a potency of 2.9 nM in FLAP binding, an IC50 of 76 nM for inhibition of LTB4 in human blood.
    Fiboflapon
  • HY-113330
    12S-HHT
    		Agonist ≥99.0%
    12S-HHT (12(S)-HHTrE) is an enzymatic product of prostaglandin H2 (PGH2) derived from cyclooxygenase (COX)-mediated arachidonic acid metabolism. 12S-HHT is an endogenous ligand for BLT2 that fully activates BLT2 in vivo. 12S-HHT suppresses UV-induced IL-6 synthesis in keratinocytes, exerting an anti-inflammatory activity.
    12S-HHT
  • HY-114641A
    BIIL-260 hydrochloride
    		Antagonist 99.90%
    BIIL-260 hydrochloride is a potent and long-acting orally active leukotriene B(4) receptor LTB4 antagonist, with anti-inflammatory activity. BIIL-260 hydrochloride 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 Ki values of 1.7 nM.
    BIIL-260 hydrochloride
  • HY-13448
    Nedocromil
    		Inhibitor 98.02%
    Nedocromil suppresses the action or formation of multiple mediators, including histamine, leukotriene C4 (LTC4), and prostaglandin D2 (PGD2).
    Nedocromil
  • HY-B0174A
    Olsalazine
    		Inhibitor 99.83%
    Olsalazine is a potent inhibitor of macrophages chemotaxis to LTB4 with an IC50 value of 0.39 mM, also reduces the synthesis of 5-hydroxyeicosatetraenoic acid (5-HETE), 11-HETE, 12-HETE, and 15-HETE in polymorphonuclear leukocyte (PMNL) and mononuclear cells (MNL). Olsalazine can be used for researching ulcerative colitis. Anti-inflammatory activity.
    Olsalazine
Cat. No. Product Name / Synonyms Application Reactivity
Leukotriene Receptor Isoform Comparison

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