Target type: molecularfunction
Combining with prostacyclin (PGI(2)) to initiate a change in cell activity. [ISBN:0198506732]
Prostacyclin receptor activity, also known as IP receptor activity, is a crucial molecular function involved in the regulation of various physiological processes, particularly in the cardiovascular system. It refers to the ability of the prostacyclin receptor (IP receptor), a G protein-coupled receptor, to bind prostacyclin (PGI2), a potent vasodilator and anti-aggregatory prostaglandin. Upon binding PGI2, the IP receptor triggers a signaling cascade within the cell, leading to a series of downstream effects. This cascade typically involves the activation of adenylyl cyclase, an enzyme responsible for producing cyclic AMP (cAMP), a second messenger molecule. Increased cAMP levels then activate protein kinase A (PKA), which phosphorylates various target proteins involved in the regulation of cellular processes. The physiological effects of prostacyclin receptor activity include vasodilation, inhibition of platelet aggregation, and modulation of inflammatory responses. Vasodilation occurs through relaxation of smooth muscle cells lining blood vessels, reducing blood pressure and improving blood flow. Inhibition of platelet aggregation prevents the formation of blood clots, reducing the risk of cardiovascular events such as stroke and heart attack. Additionally, prostacyclin receptor activity modulates inflammatory responses by inhibiting the release of inflammatory mediators and promoting the resolution of inflammation. The precise mechanisms underlying these effects are complex and involve interactions with various signaling pathways and cellular processes.'
"
| Protein | Definition | Taxonomy |
|---|---|---|
| Prostacyclin receptor | A prostacyclin receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P43119] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| ah 6809 | 6-isopropoxy-9-oxoxanthene-2-carboxylic acid: structure given in UD | xanthones | |
| ramatroban | organic molecular entity | ||
| dinoprostone | prostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins. | prostaglandins E | human metabolite; mouse metabolite; oxytocic |
| dinoprost | Dinoprost: A naturally occurring prostaglandin that has oxytocic, luteolytic, and abortifacient activities. Due to its vasocontractile properties, the compound has a variety of other biological actions. prostaglandin F2alpha : A prostaglandins Falpha that is prosta-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. It is a naturally occurring prostaglandin used to induce labor. | monocarboxylic acid; prostaglandins Falpha | human metabolite; mouse metabolite |
| alprostadil | prostaglandins E | anticoagulant; human metabolite; platelet aggregation inhibitor; vasodilator agent | |
| butaprost | |||
| cloprostenol | Cloprostenol: A synthetic prostaglandin F2alpha analog. The compound has luteolytic effects and is used for the synchronization of estrus in cattle. | prostanoid | |
| fluprostenol | fluprostenol : An organofluorine compound that is racemic prostaglandin F2alpha in which the pentyl group is replaced by a 3-(trifluoromethyl)phenoxymethyl group. A synthetic analogue of prostaglandin F2alpha, ophthalmic solutions of its isopropyl ester prodrug, travoprost, are used as a topical medication for controlling the progression of open-angle glaucoma and ocular hypertension, by reducing intraocular pressure. The isopropyl ester group of travoprost is hydrolysed to the biologically active free acid by esterases in the cornea. fluprostenol: synthetic prostaglandin F 2 alpha analog used as an abortifacient; RN given refers to ((1alpha(Z),2beta(1E,3R*),3alpha,5alpha)-(+-))-isomer | (trifluoromethyl)benzenes; hydroxy monocarboxylic acid; prostaglandins Falpha | abortifacient; antiglaucoma drug; antihypertensive agent; female contraceptive drug; prostaglandin receptor agonist |
| iloprost | iloprost : A carbobicyclic compound that is prostaglandin I2 in which the endocyclic oxygen is replaced by a methylene group and in which the (1E,3S)-3-hydroxyoct-1-en-1-yl side chain is replaced by a (3R)-3-hydroxy-4-methyloct-1-en-6-yn-1-yl group. A synthetic analogue of prostacyclin, it is used as the trometamol salt (generally by intravenous infusion) for the treatment of peripheral vascular disease and pulmonary hypertension. Iloprost: An eicosanoid, derived from the cyclooxygenase pathway of arachidonic acid metabolism. It is a stable and synthetic analog of EPOPROSTENOL, but with a longer half-life than the parent compound. Its actions are similar to prostacyclin. Iloprost produces vasodilation and inhibits platelet aggregation. | carbobicyclic compound; monocarboxylic acid; secondary alcohol | platelet aggregation inhibitor; vasodilator agent |
| tg4-155 | TG4-155: an EP2 receptor antagonist; structure in first source | ||
| u 62840 | U 62840: stereoisomeric benzindene prostaglandin analog; structure given in first source | carbotricyclic compound; carboxylic acid | antihypertensive agent; cardiovascular drug; human blood serum metabolite; platelet aggregation inhibitor; vasodilator agent; vitamin K antagonist |
| mk-0524 | MK-0524: a potent orally active human prostaglandin D(2) receptor 1 antagonist; structure in first source | indolyl carboxylic acid | |
| cp533536 | CP533536: an EP2 receptor-selective prostaglandin E2 agonist that induces bone healing; structure in first source | monocarboxylic acid | |
| selexipag | selexipag : A member of the class of pyrazines that is N-(methanesulfonyl)-2-{4-[(propan-2-yl)(pyrazin-2-yl)amino]butoxy}acetamide carrying two additional phenyl substituents at positions 5 and 6 on the pyrazine ring. An orphan drug used for the treatment of pulmonary arterial hypertension. It is a prodrug for ACT-333679 (the free carboxylic acid). selexipag: prostacyclin receptor agonist | aromatic amine; ether; monocarboxylic acid amide; N-sulfonylcarboxamide; pyrazines; tertiary amino compound | orphan drug; platelet aggregation inhibitor; prodrug; prostacyclin receptor agonist; vasodilator agent |
| mre 269 | (4-((5,6-diphenylpyrazin-2-yl)(isopropyl)amino)butoxy)acetic acid: active form of NS-304 ACT-333679 : A member of the class of pyrazines that is {4-[(propan-2-yl)(pyrazin-2-yl)amino]butoxy}acetic acid carrying two additional phenyl substituents at positions 5 and 6 on the pyrazine ring. The active metabolite of selexipag, an orphan drug used for the treatment of pulmonary arterial hypertension. | aromatic amine; ether; monocarboxylic acid; pyrazines; sulfonamide; tertiary amino compound | drug metabolite; orphan drug; platelet aggregation inhibitor; prostacyclin receptor agonist; vasodilator agent |
| dg 041 | |||
| oc000459 | |||
| cj-023,423 | grapiprant: a potent and selective prostaglandin EP4 receptor antagonist with antihyperalgesic properties; cyclooxygenase inhibitors | ||
| l-798106 | L-798106 : An N-sulfonylcarboxamide resulting from the formal condensation of the carboxy group of o-naphthalen-2-ylcinnamic acid with the sulfonamide group of 5-bromo-2-methoxybenzenesulfonamide. It is a selective antagonist for the prostanoid receptor EP3, a prostaglandin receptor for prostaglandin E2 (PGE2). | aromatic ether; bromobenzenes; N-sulfonylcarboxamide | prostaglandin receptor antagonist |
| fevipiprant | fevipiprant: a CRTh2 antagonist; structure in first source | ||
| fr181157 | |||
| pf-04418948 | 1-(4-fluorobenzoyl)-3-(((6-methoxy-2-naphthyl)oxy)methyl)azetidine-3-carboxylic acid: structure in first source | ||
| cay 10580 | 2-(3-hydroxyoctyl)-5-oxo-1-pyrrolidineheptanoic acid : A pyrrolidin-2-one substituted by 6-carboxyhexyl and 3-hydroxyoctyl groups at positions 1 and 2, respectively. It is a potent prostaglandin EP4 receptor agonist (Ki=35 nM). CAY 10580: a E-prostanoid EP4 receptor agonist | hydroxy monocarboxylic acid; pyrrolidin-2-ones; secondary alcohol | prostaglandin receptor agonist |
| mk-7246 | |||
| tg6-10-1 | TG6-10-1: brain-permeant prostaglandin E receptor 2 antagonist; structure in first source |