Sulprostone (SHB 286), a prostaglandin E2 (PGE2) analogue, is a potent and selective EP3 receptor agonist. Sulprostone has potential antiulcer and nonsteroidal abortifacient effects used for the research of pregnancy termination and hemorrhages during delivery[1][2][3].
AGN 210676 is a selective prostaglandin EP2 agonist extracted from patent US20070203222A1, Compound example 23, has an EC50 of 5 nM.
CGS 15435, a potent thromboxane (TxA2) synthetase inhibitor with an IC50 of 1 nM, has a selectivity for Tx synthetase 100000-fold greater than that for cyclooxygenase, PGI2 synthetase and lipoxygenase enzymes.
AZD1981 is a potent and selective CRTh2 antagonist; displaces radio-labelled PGD2 from human recombinant DP2 with high potency (pIC50 = 8.4).IC50 value:Target: GPR44 antagonistin vitro: AZD1981 produced a concentration-dependent displacement of the [3H]PGD2-specific binding with a mean pIC50 of 8.4 ± 0.1 (n = 25, geometric mean IC50 of 4 nM). AZD1981 had no significant affinity towards recombinant human DP1 receptors with only a mean 27% (range 14–50%; n = 4) displacement of [3H]PGD2-specific binding observed at the highest concentration tested (10 μM). Compared with the binding potency for DP2, AZD1981 showed 10-fold selectivity over rat aldose reductase and 1700-fold selectivity over rat steroid 5α-reductase.In eosinophils, a single concentration of 1 μM, AZD1981 caused a large (20-fold) rightward parallel shift in the 15R-methyl PGD2 E/[A] curve with no evidence of a decrease in the maximal response. The effect of AZD1981 was therefore investigated using a single sub-maximal concentration of agonist (1 μM). AZD1981 produced a concentration-dependent inhibition of eosinophil migration with a pIC50 value of 7.6 ± 0.1 (n = 4) [1].in vivo: Using the previously described guinea pig hind limb model , 10 nM AZD1981 significantly inhibited DK-PGD2-induced eosinophil mobilization by approximately 50%, and the response was completely inhibited with 100 nM AZD1981 [1]. in vivo: AZD1981 exhibited good cross-species binding activity against mouse, rat, guinea pig, rabbit and dog DP2 . Evaluation in mouse, rat or rabbit cell systems was not possible as they did not respond to DP2 agonists. Agonist responses were seen in guinea pig and dog, and AZD1981 blocked DP2 -mediated eosinophil shape change. Such responses were more robust in the guinea pig, where AZD1981 also blocked DP2 -dependent eosinophil emigration from bone marrow [1]. There was no beneficial clinical effect of AZD1981, at a dose of 1000 mg twice daily for 4 weeks, in patients with moderate to severe COPD. AZD1981 was well tolerated and no safety concerns were identified [3].
Aganepag is a potent Prostanoid EP2 receptor agonist, with an EC50 of 0.19 nM, and shows no activity at EP4 receptor. Aganepag can be used in the research of wound healing, scar reduction, scar prevention and wrinkle treatment and prevention.
Furprofen is an non-steroidal anti-inflammatory drug (NSAID) with analgesic properties[1]. Furprofen acts via the inhibition of prostaglandin (PGE) synthesis. Furprofen can be treated orally for the relief of pain[2][3].
Daltroban (BM-13505) is a selective and specific thromboxane A2 (TXA2) receptor antagonist. Daltroban increase intracellular calcium in vascular smooth muscle cells. Daltroban shows protective effect in reperfusion injury[1][2].
Terutroban is a thromboxane-prostaglandin receptor antagonist.
Iloprost-d4 (Ciloprost-d4) is the deuterium labeled Iloprost. Iloprost (ZK 36374) is a synthetic analogue of prostacyclin PGI2[1][2].
Nocloprost, a prostaglandin E2 (PGE2) analog, is an orally active EP1- and EP3-receptor agonist. Nocloprost inhibits evoked [3H]ACh release. Nocloprost has gastroprotective and ulcer-healing properties. Nocloprost accelerates the healing of chronic gastric ulcerations and enhances mucosal growth in rats[1][2].
Pexopiprant is an oral antagonist of the prostaglandin D2 receptor 2 (DP2),Ki ＜ 100nM. Pexopiprant can be used in studies of asthma[1].
CRTH2-IN-1 (Ramatroban analog) is a selective prostaglandin D2 receptor DP2 (CRTH2) antagonist with an IC50 of 6 nM in a human DP2 binding assay.
Taprenepag isopropyl is a highly selective EP2 receptor agonist.
Omidenepag Isopropyl (DE-117, OMDI) is the prodrug of Omidenepag, which is a potent, selective agonist human EP2 receptor; demonstrates excellent IOP-lowering activities following ocular administration in ocular normotensive monkeys, Omidenepag Isopropyl (OMDI) is a clinical candidate for the treatment of glaucoma. Other Indication Preregistration
ICI D1542 is a selective and potent inhibitor of thromboxane A2 (TXA2) synthase and the thromboxane A2 receptor (TP-receptor). ICI D1542 is effective at preventing thrombus formation by redirection of arachidonic acid metabolism[1].
ONO-8130 is an orally active and selective prostanoid EP1 receptor antagonist. ONO-8130 blocks phosphorylation of ERK in the L6 spinal cord. ONO-8130 relieves bladder pain in mice with cyclophosphamide-induced cystitis. ONO-8130 can be used for interstitial cystitis research[1].
ASP7657 (ASP-7657) is a potent, selective, orally active prostaglandin EP4 receptor antagonist with Ki values of 6.02 nM and 2.21 nM for rat and human EP4 receptors, resepctively; potently inhibits the PGE2-induced cAMP increase in CHO cells expressing rat EP4 receptors and human lymphoblastoid T (Jurkat) cells, with IC50 values of 0.86 nM and 0.29 nM, respectively; does not inhibit the PGE2-induced intracellular calcium increase in HEK293 cells expressing rat EP1 and EP3 receptors, or cAMP increase in CHO cells expressing rat EP2 receptors; dose-dependently inhibits the PGE2-mediated inhibition of LPS-induced TNF-α release from rat whole blood culture, attenuates albuminuria in type 2 diabetic mice at dose of 0.1 mg/kg. Diabetes Phase 1 Discontinued
Amtolmetin guacil is an effective nonsteroidal anti-Inflammatory agent with pain-relieving effects. Amtolmetin guacil inhibits prostaglandin synthesis and cyclooxygenase (COX). Amtolmetin guacil can stimulate capsaicin receptors present on the gastrointestinal wall and also releases gastroprotective nitric oxide (NO). Amtolmetin guacil can be used to research knee osteoarthritis[1][2].
Seratrodast(AA 2414) is a potent and selective thromboxane A2 receptor (TP) antagonist.Target: Thromboxane A2 ReceptorSeratrodast, also known as AA-2414, is a potent and selective antagonist of the TXA2R (thromboxane A2 receptor). AA-2414 reduced the induction of pulmonary inflation caused by LTD4 aerosol inhalation. AA-2414 competitively inhibited the contractile response to U-46619 in guinea pig tracheal and parenchymal strips and dog saphenous vein strips with pA2 values of 7.69, 8.29 and 6.79, respectively. AA-2414, a quinone derivative, is a novel, potent and orally active antagonist of a variety of spasmogenic prostanoids [1]. AA-2414 inhibited peroxide-induced vasoconstriction in the human placenta, as well as peroxide- induced increases in the placental secretion rates of lipid peroxides and thromboxane, but only partially inhibited peroxide-induced increases in the placental secretion rate of prostacyclin [2].
Aganepag isopropyl (AGN-210961) is an EP2 agonist[1][2].
Taprostene (CG-4203) is a synthetic, chemically stable analogue of Prostacyclin (PGI2). Taprostene exhibits endothelium and myocardial protecting actions after acute myocardial ischemia and reperfusion in cats. Taprostene enhances cytoprotective actions, while minimizing unwanted hemodynamic effects[1].
Grapiprant is a selective EP4 receptor antagonist whose physiological ligand is prostaglandin E2 (PGE2).Target: prostaglandin receptorin vitro: Grapiprant is a novel pharmacologically active ingredient, acts as a selective EP4 receptor antagonist whose physiological ligand is prostaglandin E2 (PGE2). [1]in vivo: Grapiprant is currently under development for use in humans and dogs for the control of pain and inflammation associated with osteoarthritis. [1] Results suggested the safety of long-term oral administration of grapiprant to dogs. Efficacy of grapiprant in the treatment of dogs with osteoarthritis needs to be evaluated in other studies. [2]
p-Hydroxycinnamic acid, a common dietary phenol, could inhibit platelet activity, with IC50s of 371 μM, 126 μM for thromboxane B2 production and lipopolysaccharide-induced prostaglandin E2 generation, respectively.
AH23848 hemicalcium salt is a potent, specific and orally active thromboxane receptor blocker. AH23848 hemicalcium salt inhibits platelet deposition[1].
EP3 antagonist 3 (compound 2) is an orally active, potent and selective EP3 antagonist, with a pKi of 8.3. EP3 antagonist 3 shows excellent pharmacokinetic properties. EP3 antagonist 3 can be used for overactive bladder (OAB) research[1].
EP4 receptor antagonist 1 is a highly potent and selective competitive prostanoid EP4 receptor antagonist for cancer immunotherapy. EP4 receptor antagonist 1 inhibits human and mouse EP4 receptor with IC50s of 6.1 nM and 16.2 nM, respectively. IC50s >10 μM for human EP1, EP2,and EP3 receptors[1].
SC-19220 is a competitive prostaglandinn E2 receptor antagonist. SC-19220 increases the bladder capacity and reduced the voiding efficiency of micturition (elicited by slow transvesical filling) of urethane-anesthetized rats. SC-19220 can restores the balance in bone marrow granulocyte and monocyte production after burn sepsis[1][2].
Misoprostol acid D5 is deuterium labeled Misoprostol acid. Misoprostol acid is an active metabolite of Misoprostol. Misoprostol is a synthetic analogue of prostaglandin E1 (PGE1), extensively absorbed, and undergoes rapid de-esterification to Misoprostol acid in the gastrointestinal tract after oral administration. Misoprostol can be used for non-steroidal anti-inflammatory drug-induced (NSAID) gastric ulcers[1]. Misoprostol is an oral agent used to induce labor[2].
RS-601 is a novel leukotriene D4 (LTD4)/thromboxane A2 (TxA2) dual receptor antagonist, with antiasthmatic activities.
Thromboxane A2 (TXA2) is a prostanoid mediator produced by the metabolism of Arachidonic acid (HY-109590) through the cyclooxygenase pathway. Thromboxane A2 activates the thromboxane-prostanoid (TP) receptors. Thromboxane A2 is a potent vasoconstrictor eicosanoid. Thromboxane A2 (TXA2) leads to potent vasoconstriction by stimulation of smooth muscle cells. Thromboxane A2 acts as s tonic immunoregulator to regulate adaptive immune responses[1][2].