p2y4 receptor

MRS2698 is an effective and highly selective agonist of the P2Y2 receptor (EC50: 8 nM). MRS2698 also is >300-fold P2Y2-selective versus the P2Y4 and P2Y6 receptors.

PSB-1114 tetrasodium shows >50-fold selectivity versus the P2Y4 (EC50: 9.3 μM) and P2Y6 (EC50: 7.0 μM) receptors. PSB-1114 tetrasodium is an effective, enzymatically stable, and subtype-selective P2Y2 receptor agonist (EC50: 134 nM) .

4-Thiouridine 5′-triphosphate tetralithium (4-Thio-UTP), a potent P2Y2 and P2Y4 receptor agonist, exhibits EC50 values of 35 nM for hP2Y2 and 350 nM for hP2Y4. It is utilized in crosslinking experiments and labeling of transcriptional complexes [1] [2].

4-Thiouridine 5′-triphosphate (4-Thio-UTP) tetrasodium functions as a potent agonist at P2Y 2 and P2Y 4 receptors, with half-maximal effective concentrations (EC50s) of 35 nM for hP2Y 2 and 350 nM for hP2Y 4. This compound is applicable in studies involving crosslinking experiments and labeling of the transcriptional complex [1] [2].

PPTN is a high-affinity, competitive and highly selective antagonist of P2Y14 receptor(KB value of 434 pM), with anti-inflammatory and immune activity.

PPTN hydrochloride is a potent, high-affinity, competitive, and highly selective P2Y14 receptor antagonist (KB: 434 pM) with no agonist or antagonist activity at P2Y1, P2Y2, P2Y4, P2Y6, P2Y11, P2Y12, or P2Y13 receptors, exhibiting anti-inflammatory and anti-immune effects.

Indophagolin is a potent, indoline-containing autophagy inhibitor with an IC50 of 140 nM, and it antagonizes the purinergic receptor P2X4 as well as P2X1 and P2X3 with IC50s of 2.71, 2.40, and 3.49 μM, respectively.

P2Y2 and P2Y4 receptor agonist

MRS 4062 triethylammonium salt is a selective P2Y4 receptor agonist (EC50 values are 23, 640, and 740 nM for hP2Y4, hP2Y2 and hP2Y6 respectively).

MRS2179 is a competitive P2Y1 receptor antagonist with a Kb value of 100 nM and exhibits no appreciable activity at P2Y2, P2Y4, or P2Y6 receptors at concentrations up to 30 µM, nor at P2Y12 and P2Y13 receptors. MRS2179 inhibits ADP-induced platelet shape change and platelet aggregation in vitro, with a pA2 value of 6.55, and prolongs bleeding time in rats and mice relative to control groups. The receptor selectivity profile of MRS2179 supports its application in research focused on purinergic signaling, platelet biology, thrombosis-related mechanisms, and P2Y1 receptor-mediated cellular responses.

MRS2578, an effective P2Y6 receptor antagonist with IC50 of 37 nM, shows insignificant inhibition at P2Y1, P2Y2, P2Y4, and P2Y11 receptors.

MRS2179 tetrasodium hydrate, a competitive antagonist of the P2Y1 receptor, acts on the turkey P2Y1 receptor (Kb: 102 nM, pA2: 6.99) and exhibits an inhibitory effect on platelet aggregation. IC50: 1.15 μM), P2X3 (IC50: 12.9 μM), P2X2, P2X4, P2Y2, P2Y4 and P2Y6 receptors.

PSB-1114 triethylamine is a potent, enzymatically stable, P2Y2 receptor agonist with a 134 nM EC50, exhibiting greater than 50-fold selectivity over P2Y4 (EC50 of 9.3 μM) and P2Y6 (EC50 of 7.0 μM) receptors [1].

UDP-β-S, serving as a specific agonist for the purinergic P2Y6 receptor, effectively promotes inositol phosphate accumulation in 1321N1 cells containing P2Y6 receptors, with an EC50 value of 28 nM. This selectivity is evident when compared to its effects on cells expressing P2Y1, P2Y2, or P2Y4 receptors, where a concentration of 10 µM is used. Additionally, at a concentration of 1 µM, UDP-β-S stimulates DNA synthesis in isolated rat aorta smooth muscle cells.

Rp-2'-Deoxyuridine-5'-O-(1-thiotriphosphate) (Rp-dUTP-α-S), a sulfur-containing nucleotide isomer and purinergic P2Y2 receptor agonist, preferentially promotes inositol phosphate accumulation in 1321N1 astrocytoma cells with P2Y2 receptors (EC50 = 12.5 µM) compared to those expressing P2Y4 receptors at a concentration of 10 µM.

Uridine adenosine tetraphosphate (UP4A) acts primarily as an endothelium-derived vasoconstrictor, exerting its effects mainly through the P2X1 receptor, and potentially through the P2Y2 and P2Y4 receptors as well. It is utilized in research related to cardiovascular diseases.