2. Signaling Pathways
  3. GPCR/G Protein
  4. Platelet-activating Factor Receptor (PAFR)

Platelet-activating Factor Receptor (PAFR)

The platelet-activating factor receptor (PAFR) is a G-protein-coupled receptor involved in both normal physiological and numerous pathophysiological processes. PAFR responds to platelet-activating factor (PAF), a phospholipid mediator of cell-to-cell communication that exhibits diverse physiological effects. Stimulation of the PAFR via binding of platelet-activating factor (PAF) elicits diverse and potent biological activities and plays a profound role in acute inflammation, allergic disorders, endotoxic shock, and anaphylaxis. PAF is a potent and versatile mediator of inflammation that is produced by numerous cell types and tissues, and particularly by leukocytes.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-19126
    CL-184005
    		Antagonist
    CL-184005 is an antagonist for platelet-activating factor (PAF), that inhibits the PAF-induced platelet aggregation with IC50 of 600 nM and 510 nM, in human and rabbit platelet-rich plasma. CL-184005 protects the rats from endotoxin-induced gastrointestinal damage and hypotension. CL-184005 exhibits potential attenuating Gram-negative bacterial sepsis.
    CL-184005
  • HY-N3436
    Kadsurin A
    		Antagonist
    Kadsurin A is a new lignan can be isolated from Piper futokadsura. Kadsurin A is a platelet activating factor (PAF) receptor antagonist that weakly inhibits the binding of PAF to its receptor.
    Kadsurin A
  • HY-136791
    BN52115
    		Antagonist
    BN 52115, a platelet-activating factor antagonist, has demonstrated the ability to mitigate bronchopulmonary changes in vivo.
    BN52115
  • HY-132190
    Hexanolamino PAF C-16
    		Antagonist
    Hexanolamino PAF C-16 (1-O-hexadecyl-2-acetyl-sn-glycero-3-phospho (N,N,N trimethyl) hexanolamine) is a Platelet-activating Factor Receptor (PAFR) Modulator with partial agonist activity. Hexanolamino PAF C-16 induces platelet aggregation and macrophage production but fails to increase [Ca2+]i in platelets, suggesting that PAF receptors may interact with PAF receptors through Ca2+-dependent and -independent pathways. Related to platelet aggregation.
    Hexanolamino PAF C-16
  • HY-121377
    Epiyangambin
    		Antagonist
    Epiyangambin is a competitive platelet activating factor receptor (PAF) antagonist that dose-dependently inhibits PAF-induced platelet aggregation. Epiyangambin also inhibits the growth of human colon cancer cells (SW480 cells).
    Epiyangambin
  • HY-141581
    Lyso-PAF C-18
    		≥98.0%
    Lyso-PAF C-18 is an intermediate for the synthesis of C18-PAF (HY-130345). It has an easily substituted "Lyso-PAF" structure and is easy to purify and has high yield. C18-PAF is a ligand for platelet-activating factor and PAF G protein-coupled receptor (PAFR) and has renovasodilator properties and antihypertensive lipid properties.
    Lyso-PAF C-18
  • HY-N0784R
    Ginkgolide B (Standard)
    		Antagonist
    Ginkgolide B (Standard) is the analytical standard of Ginkgolide B. This product is intended for research and analytical applications. Ginkgolide B (BN-52021), a terpene lactone, is a potent platelet activating factor antagonist. Ginkgolide B protects endothelial cells via the activation of PXR from injuries induced by xeno- and endobiotics. Ginkgolide B can pass through the brain-blood barrier. Ginkgolide B has anti-oxidant, anti-inflammatory, anti-tumor, and anti-apoptotic activity. Ginkgolide B has marked neuroprotective effects against ischemia-induced impairments.
    Ginkgolide B (Standard)
  • HY-N3643
    Cryptomeridiol
    		Inhibitor
    Cryptomeridiol is a platelet-activating factor (PAF) receptor binding inhibitor. Cryptomeridiol has melanogenesis inhibitory activity in the α-MSH (HY-P0252)-stimulated B16 melanoma cells.
    Cryptomeridiol
  • HY-132210
    rel-(2R,4R)-2,4-Bis(3,4,5-trimethoxyphenyl)-1,3-dioxolane
    		Antagonist
    rel-(2R,4R)-2,4-Bis(3,4,5-trimethoxyphenyl)-1,3-dioxolane (compound 6) is a platelet-activating factor receptor (PAFR) antagonist with a Ki of 0.3 µM.
    rel-(2R,4R)-2,4-Bis(3,4,5-trimethoxyphenyl)-1,3-dioxolane
  • HY-116120
    N-Acetyldesloratadine
    		Antagonist 99.93%
    N-Acetyldesloratadine (SCH-37370) is a potent, orally active dual antagonist of platelet-activating factor (PAF) and histamine. N-Acetyldesloratadine inhibits PAF-induced aggregation of human platelets, with an IC50 of 0.6 µM.
    N-Acetyldesloratadine
  • HY-116400
    BN 50341
    		Antagonist
    BN 50341 is an orally active anticalcic agent and a benzazepine derivative. BN 50341 decreases the in vivo electrically induced thrombus formation in rat or guinea-pig artery and can be utilized in cardiovascular research.
    BN 50341
  • HY-N2247A
    (+)-Guaiacin
    (+)-Guaiacin is a compound extracted of the bark of Machilus wangchiana Chun. (Lauraceae). (+)-Guaiacin shows potent in vitro activities against the release of β-glucuronidase in rat polymorphonuclear leukocytes (PMNs) induced by platelet-activating factor (PAF) .
    (+)-Guaiacin
  • HY-123367
    Rubraxanthone
    		Inhibitor
    Rubraxanthone is a compound with multiple biological activities. Its pharmacokinetic parameters were determined in mice and it showed a certain concentration variation pattern in plasma after oral administration.
    Rubraxanthone
  • HY-153717
    LAU-0901
    		Antagonist
    LAU-0901, a PAF receptor antagonist, possesses highly neuroprotective activity. LAU-0901 inhibits apoptosis.
    LAU-0901
  • HY-W923483
    C16-18:1 PC
    C16-18:1 PC (1-O-Hexadecyl-2-oleoyl-sn-glycero-3-phosphocholine), also known as 1-O-hexadecyl-2-oleoyl-sn-glycero-3-phosphocholine (HOPC), is a member of the platelet-activating factor (PAF) family of glycerophospholipids and serves as a pro-inflammatory lipid mediator with diverse biological and pharmacological effects; it features a mono-ether structure with an oleoyl chain (18:1) ester-linked at the sn-2 position and a hexadecyl chain (16:0) ether-linked at the sn-1 position.
    C16-18:1 PC
  • HY-105507
    PF-10040
    PF-10040 is a quinoline derivative that can inhibit PAF-induced airway hyperresponsiveness. PF-10040 also shows protective effect in experimental NSAID-gastritis.
    PF-10040
  • HY-W700638A
    Benafentrine maleate
    		Antagonist
    Benafentrine maleate is a platelet activating factor receptor (PAFR) antagonist and a PDE 4 inhibitor.
    Benafentrine maleate
  • HY-117811
    (R,R)-MK 287
    		Inhibitor
    (R,R)-MK 287 (L-680574) is a tetrahydrofuran derivative that potently inhibits the binding of [3H]C18-PAF to human platelets, polymorphonuclear leukocytes (PMNs), and lung membranes with Ki values of 6.1, 3.2, and 5.49 nM, respectively. (R,R)-MK 287 potently and selectively inhibits PAF-induced platelet aggregation (ED50=56 nM) and elastase release from PMNs (ED50=4.4 nM). (R,R)-MK 287 inhibits PAF-induced lethality in mice (ED50=0.8 mg/kg, po) and PAF-induced bronchospasm in guinea pigs (ED50=0.18 mg/kg).
    (R,R)-MK 287
  • HY-106837
    Israpafant
    		Antagonist
    Israpafant (Y-24180) is a potent, selective and long-acting platelet activation factor (PAF) receptor antagonist with IC50s of 0.84 nM and 3.84 nM against PAF-induced human and rabbit platelet aggregation, respectively. Israpafant stimulates both extracellular Ca2+ influx and intracellular Ca2+ release in prostate cancer cells. Israpafant suppresses the allergic cutaneous reactions including eosinophilia, cytokine production, edema and erythema in mice.
    Israpafant
  • HY-N9300
    1,6-Dihydro-4,7-epoxy-1-methoxy-3,4-methylenedioxy-6-oxo-3,8-lignan
    		Inhibitor
    1,6-Dihydro-4,7-epoxy-1-methoxy-3,4-methylenedioxy-6-oxo-3,8-lignan, a lignan derivative from the ethyl acetate soluble fraction of twigs of Magnolia denudate (Magnoliaceae), exhibits anti-platelet-activating factor (PAF) activity. PAF is a potent lipid mediator in inflammation and asthma.
    1,6-Dihydro-4,7-epoxy-1-methoxy-3,4-methylenedioxy-6-oxo-3,8-lignan
Cat. No. Product Name / Synonyms Application Reactivity