1. Signaling Pathways
  2. GPCR/G Protein
  3. 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.

Platelet-activating Factor Receptor (PAFR) Related Products (36):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N0784
    Ginkgolide B
    Antagonist 99.96%
    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
  • HY-108634
    Apafant
    99.96%
    Apafant (WEB 2086), a potent platelet-activating factor (PAF) antagonist, inhibits PAF binding to human PAF receptors with a Ki of 9.9 nM.
    Apafant
  • HY-19121A
    TCV-309 chloride
    TCV-309 chloride is a potent and specific platelet activating factor (PAF) antagonist. TCV-309 chloride specifically inhibits PAF-induced aggregation of rabbit and human platelets, and [3H]PAF binding to rabbit platelet microsomes with IC50 values of 33 nM, 58 nM and 27 nM, respectively. TCV-309 chloride has beneficial effects in anaphylactic shock.
    TCV-309 chloride
  • HY-109897
    CV-6209
    ≥98.0%
    CV-6209 is a potent antagonist of platelet activating factor (PAF). CV-6209 inhibits the PAF-induced aggregation of rabbit and human platelets, with IC50s of 75 nM and 170 nM, respectively. CV-6209 can inhibit PAF-induced hypotension in rats.
    CV-6209
  • HY-128694
    Foropafant
    99.50%
    Foropafant (SR27417) highly potent, competitive, selective and orally active antagonist of platelet-activating factor (PAF) receptor, with a Ki value of 57 pM for [3H]PAF binding, at least 5-fold lower than that of unlabeled PAF itself. Foropafant potently inhibits PAF-induced aggregation of rabbit and human platelets.
    Foropafant
  • HY-P2606
    Antiflammin 2
    Inhibitor
    Antiflammin 2 inhibits the synthesis of platelet-activating factor (PAF) with the IC50 of 100 nM.
    Antiflammin 2
  • 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-141581
    Lyso-PAF C-18
    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-108908A
    Modipafant
    Modipafant (UK-80067), the (+)-enantiomer of UK-74505, is a potent, orally active, and selective platelet-activating factor (PAF) antagonist. Modipafant exhibits approximately double the intrinsic potency of UK-74505.
    Modipafant
  • 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-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-N10663
    Kadsurenone
    Antagonist ≥99.0%
    Kadsurenone
  • HY-116120
    N-Acetyldesloratadine
    Antagonist
    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-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-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-N8218
    Homoeriodictyol 7-O-β-D-glucoside
    Homoeriodictyol 7-O-β-D-glucoside is a natural platelet-activating factor (PAF) antagonist. Homoeriodictyol 7-O-β-D-glucoside inhibits human and rabbit platelet aggregation induced by PAF, with an IC50 of 0.8 μM.
    Homoeriodictyol 7-O-β-D-glucoside
  • HY-N4228
    6-Methoxydihydroavicine
    6-Methoxydihydroavicine is an alkaloid isolated from Zanthoxylum integrifoliolum. 6-Methoxydihydroavicine has antiplatelet activities and inhibits AA-, collagen- and PAF-induced platelet aggregation in vitro.
    6-Methoxydihydroavicine
  • HY-105198
    Lexipafant
    Lexipafant is a platelet-activating factor (PAF) antagonist that inhibits the inflammatory response and is used in the research of acute pancreatitis.
    Lexipafant
  • HY-121394
    L-659,989
    Agonist
    L-659,989 is an orally active, extremely potent, selective and competitive platelet activating factor (PAF) receptor antagonist.
    L-659,989
  • HY-10164
    E-​6123
    E-​6123 is a platelet-activating factor (PAF) receptor antagonist.
    E-​6123