Purinergic (P2Y) Receptors

P1,P2-Diuridine-5'-diphosphate (Up2U) is a symmetrical dinucleoside polyphosphate that acts as a purinergic P2Y receptor activator. This compound plays a significant role in modulating cellular responses by activating purinergic signaling pathways. It is of particular interest in research areas involving neurotransmission, cellular signaling, and immune responses. P1,P2-Diuridine-5'-diphosphate can be utilized to explore the functional roles of P2Y receptors in various biological systems.

Adenosine 3'-phosphate 5'-phosphosulfate triethylamine is a selective antagonist of the P2Y1 receptor, exhibiting no activity against P2Y2, P2Y4, or P2Y6 receptors. This compound effectively inhibits ADP-induced platelet aggregation, as well as ADP-mediated shape changes and Ca2+ elevations in platelets, while not affecting ADP's inhibition of stimulated adenylate cyclase. Additionally, it serves as a co-substrate for the sulfonation of glycans and is valuable in Golgi-resident PAP-specific 3'-phosphatase-coupled sulfotransferase assays for transferring sulfonate groups.

Uridine 5'-O-thiodiphosphate (UDP-β-S) is a stable analog of uridine diphosphate that selectively acts as an agonist for the P2Y6 receptor. This compound exhibits enhanced metabolic stability, making it valuable for investigating signaling pathways related to cardiovascular diseases. Its application in research provides insights into P2Y6 receptor-mediated processes, contributing to the understanding of cellular responses and potential therapeutic targets.

2-Methylthio-ATP (2-MeS-ATP) is an agonist of the P2Y purinergic receptor, specifically designed for adenosine nucleotide modulation. This compound demonstrates key biological activity by inhibiting the release of inflammatory mediators from macrophages in response to lipopolysaccharide (LPS) stimulation. 2-MeS-ATP is a valuable tool for research into endotoxin shock and various inflammatory disorders, providing insights into purinergic signaling and its therapeutic potential.

Adenosine 3'-phosphate 5'-phosphosulfate lithium is a selective antagonist of the P2Y1 receptor, exhibiting no activity against P2Y2, P2Y4, or P2Y6 receptors. It effectively inhibits ADP-induced platelet aggregation, as well as ADP's ability to induce shape change and Ca2+ mobilization in platelets, without affecting ADP-stimulated adenylate cyclase activity. Furthermore, this compound acts as a co-substrate for glycan sulfonation and can be utilized in Golgi-resident PAP-specific 3'-phosphatase-coupled sulfotransferase assays to facilitate the transfer of sulfonate groups.

2-Thio-UTP is a selective P2Y2 agonist exhibiting an EC50 value of 50 nM. It has demonstrated the ability to reduce pro-fibrotic gene expression and protein levels of α-smooth muscle actin. This reagent is valuable for research applications related to calcific aortic valve stenosis (CAVS) and other fibrotic disorders.

5'-UMPS (Uridine-5'-O-monophosphorothioate) acts as an agonist of the P2Y14 receptor. This compound has been shown to slightly induce growth in HeLa cells, highlighting its potential role in cellular proliferation studies. As a valuable tool in pharmacological research, 5'-UMPS may contribute to the understanding of purinergic signaling pathways and their biological implications.

BX 667 is a selective reversible antagonist of the P2Y12 receptor, which plays a crucial role in platelet activation and aggregation. By inhibiting this receptor, BX 667 effectively attenuates thrombosis, making it a valuable tool for research into cardiovascular diseases and thrombotic disorders. Its oral bioactivity allows for convenient application in various in vivo studies related to platelet function and vascular health.

Sp-ATPαS is a competitive antagonist of the P2Y1 receptor, primarily affecting ATP-binding proteins. It effectively inhibits calcium signaling induced by ADP and demonstrates greater metabolic stability than ATP. This reagent is valuable for exploring binding interactions of metals and nucleotides in various enzymatic reactions, making it a useful tool in biochemical studies and receptor function analysis.

MRS2298 is a potent acyclic antagonist of the P2Y1 receptor, exhibiting a Ki of 29.6 nM. This compound effectively inhibits ADP-induced platelet aggregation with an IC50 of 62.8 nM and significantly diminishes Ca2+ mobilization in platelets, presenting an IC50 of 810 nM. MRS2298 serves as a valuable tool for investigating platelet function and the role of purinergic signaling in cardiovascular research.

4-Thiouridine 5′-triphosphate tetrasodium is a potent agonist of the P2Y2 and P2Y4 receptors, exhibiting EC50 values of 35 nM and 350 nM, respectively. This UTP analog is suitable for various research applications, including cross-linking experiments and transcriptional complex labeling studies, making it a valuable tool for investigating purinergic signaling pathways.

Acid Blue 129 is an acidic dye with a selective antagonistic effect on the P2Y receptor in guinea pig taenia coli, demonstrating its utility in biological research related to purinergic signaling. This compound does not interact with the P2X receptor in rat vas deferens, highlighting its specificity. Additionally, Acid Blue 129 is suitable for dyeing various materials, including cotton, wool, silk, nylon, paper, and leather, making it versatile for both scientific and industrial applications.

Elinogrel potassium is a reversible, competitive antagonist of the P2Y12 receptor. This compound demonstrates significant inhibitory effects on platelet aggregation, thereby reducing thrombosis. Elinogrel potassium is utilized in research applications focused on cardiovascular diseases and thrombosis management.

MRS2905 trisodium is a selective agonist for the P2Y14 receptor, exhibiting an EC50 of 0.92 nM. This compound demonstrates a lack of activity at the UDP-activated P2Y6 receptor and other P2Y receptor subtypes. MRS2905 trisodium is a valuable tool for researchers studying purinergic signaling and its implications in various biological processes and disease states.

Meseclazone is an inhibitor of the P2Y receptor, demonstrating significant potency in the inhibition of secondary phase ADP-induced platelet aggregation. This compound exhibits anti-inflammatory, analgesic, and antipyretic properties, making it a valuable tool for research into thrombotic disorders and the broader mechanisms of inflammation and pain modulation.

MRS4738 is a potent antagonist of the P2Y14 receptor. It demonstrates significant anti-hyperallodynic and antiasthmatic effects in vivo, making it a valuable tool for studying pain mechanisms and respiratory conditions. This compound is essential for researchers investigating the role of purinergic signaling in various biological processes.

Diquafosol tetrasodium is a potent P2Y2 receptor agonist. It enhances fluid and mucin secretion on the ocular surface, making it an effective topical therapeutic option for the management of dry eye disease. This compound is valuable for research applications focused on ocular health and pharmacological interventions for dry eye conditions.