platelet activating factor

48740 RP (RP 55779) is an antagonist of platelet-activating factor.

PAF (C16) is a potent MAPK and MEK ERK activator that induces increased vascular permeability. PAF (C16) (PAF (C16)) is a platelet-activating factor, a phospholipid-derived mediator and a ligand for PAF G protein-coupled receptor (PAFR). PAF (C16) has shown anti-apoptotic and anti-inflammatory activity in vitro, inhibiting Caspase-dependent apoptosis by interacting with its receptor (PAF-R) to perform cell signaling.

Aglafoline inhibits in a concentration-dependent manner the aggregation and ATP release reaction induced in washed rabbit platelets by PAF (platelet-activating factor). The IC50 values of Aglafoline on PAF (3.6 nM)-induced platelet aggregation were about 50 μM.

CP-96021 hydrochloride is a potent and orally active antagonist of leukotriene D4 (LTD4) platelet activating factor receptor (Kis: 34 nM and 37 nM).

PAF-AN-1 is a novel potent platelet-activating factor receptor (PAF) antagonist involved in the study of anaphylactic death.

Tulopafant (RP 59227) is a potent platelet-activating factor (PAF) antagonist that increases capillary patency and prolongs allograft heart survival.

CV-6209 is a potent antagonist of the platelet-activating factor (PAF) receptor.

DF-1111301 is a novel anti-allergic compound with anti-histamine H1 and anti-PAF activity.

(Rac)-Modipafantis an orally available and selective platelet-activating factor receptor (PAFR) antagonist that inhibits PAF-induced aggregation of washed platelets in rabbits, and can be used to study arthritis and ischemia reperfusion (I R) in the superior mesenteric artery (SMA) of the rat.

Rocepafant (LAU8080) is a platelet-activating factor (PAF) antagonist that attenuates hypoxic-ischemic brain damage in neonatal rats.Rocepafant inhibits tumor necrosis factor-Afa-mediated cytotoxicity in mouse L929 tumor cells.

SDZ-62-434, a platelet-activating factor inhibitor with antitumor activity, inhibits bombesin- and platelet-derived growth factor-induced DNA synthesis in quiescent Swiss 3T3 cells, making it a potential candidate for studying leukemia, human xenograft colorectal cancer, and lung cancer.

Pirodomast is a thromboxane A (TXA2) synthase inhibitor. Pirodomast inhibits leukotriene (LT) D4, C4, E4 formation and thromboxane B2 (TXB2) activity, but is weakly or ineffectively antagonistic to guinea pig bronchospasm induced by histamine, methacholine, serotonin, LTC4, or platelet-activating factor. Pirodomast is a potential antiallergic compound. Pirodomast had only weak relaxant activity on guinea pig trachea in vitro. Pirodomast is a potential antiallergic compound that inhibits the protein hydrolyzing activity of trypsin in vitro, prevents antigen-induced immediate and late asthmatic responses in allergic sheep in vivo, and inhibits antigen-induced airway hyperresponsiveness to histamine and carbachol in allergic sheep.

Dersalazine (Dersalazine Free Base), an inhibitor of platelet-activating factor, exerts intestinal anti-inflammatory activity in different rodent types of colitis by down-regulating IL-17 expression, with potential efficacy in patients with ulcerative colitis.

BIRM 271 is a novel arachidonic acid release inhibitor that blocks leukotriene B4 and platelet-activating factor biosynthesis in human neutrophils. BIRM 271 and BIRM 270 are enantiomers that inhibit the production of leukotriene B4 with IC50 of 40 nM.

PAF C-18 is a naturally occurring phospholipid molecule belonging to the platelet-activating factor (PAF) family, which acts as an intercellular signaling molecule involved in platelet aggregation, vasodilatation, and inflammatory responses.PAF C-18 is involved in hemostasis and thrombosis by binding to its specific G-protein-coupled receptor (PAFR) and activating.

CP-96486 is a potent and orally active antagonist of leukotriene D4 (LTD4) and platelet activating factor (PAF) receptors, with inhibitory constants (Kis) of 20 and 24 nM, respectively.

Rupatadine (UR-12592, rupatadine) is a potent and orally available dual antagonist of PAF and histamine H1 receptors with Ki values of 0.55 μM and 0.1 μM, respectively, which provides relief of allergic symptoms and anti-inflammatory properties, and is used in allergic rhinitis and chronic urticaria.

Emedastine (LY188695) is a second generation, selective histamine H1 receptor antagonist with anti-allergic activity. Emedastine reversibly and competitively blocks histamine by binding to H1 receptors, thus blocking its downstream activity. As a result this agent interferes with mediator release from mast cells either by inhibiting calcium ion influx across mast cell basophil plasma membrane or by inhibiting intracellular calcium ion release within the cells. In addition, emedastine may also inhibit the late-phase allergic reaction mediated through leukotrienes or prostaglandins, or by producing an anti-platelet activating factor effect. Upon ocular administration, emedastine causes a dose-dependent inhibition of histamine-stimulated vascular permeability in the conjunctiva. Emedastine does not affect adrenergic, dopamine, or serotonin receptors.

Foropafant (SR27417) is a highly potent and selective platelet-activating factor (PAF) receptor antagonist (Ki: 57 pM). Foropafant potently inhibits the PAF-induced aggregation of rabbit and human platelets.

SCH-37370 is an effective and orally active dual antagonist of platelet-activating factor and histamine. Sch 37370 blocks the binding of [3H]pyrilamine to histamine-H1 receptors in rat brain membranes. Sch 37370 selectively inhibits PAF-induced aggregation of human platelets (IC50 : 0.6 mM) and also competes with PAF binding to specific sites in membrane preparations from human lungs (IC50 : 1.2 mM).

CMI-392 is a dual inhibitor of 5-lipoxygenase and a receptor antagonist for platelet-activating factor (PAF) with IC50 values of 100 nM and 10 nM, respectively.

TCV-309 chloride is an antagonist of platelet activating factor (PAF).

YM-264 is a selective and orally active antagonist of platelet-activating factor (PAF) (pKi value of 8.85 for rabbit platelet membranes).

(+)-Guaiacin, isolated from the bark of Machilus wangchiana Chun, demonstrates potent in vitro inhibition of β-glucuronidase release in rat polymorphonuclear leukocytes (PMNs) induced by platelet-activating factor (PAF).