pgd 2

Prostaglandin D2 (PGD2) (PGD2) 是哺乳动物大脑中主要产生的前列腺素之一，为最有效的内源性睡眠促进剂之一，并通过抑制炎症发挥保护作用。

PGD2-IN-1 (PGD2-inhibitor) 是 一种有效的DP 受体拮抗剂(IC50 : 0.3 nM),是一种可以抑制前列腺素D2 (PGD2)信号传导的化合物。PGD2-IN-1 专门针对和调节PGD2受体或参与PGD2合成或代谢的酶的活性。

17-Phenyl-18,19,20-trinor-PGD2（17-Phenyl-PGD2）为前列腺素D2（PGD2）的衍生物，有效抑制由腺苷二磷酸（ADP）引发的血小板聚集，其IC50值为8.4μM，相比PGD2的IC50为18.6nM。此外，该化合物还是环AMP积累的弱激动剂。

11-Deoxy-11-methylene PGD2 (11d-11m-PGD2) 为 Prostaglandin D2 类似物，其结构中的 11-酮基由环外亚甲基替代。该化合物有效激活在 Indomethacin 存在下受到抑制的脂肪存储。

Prostaglandin D2 (PGD2) is one of the five principal prostaglandins enzymatically derived from PGH2. It is abundantly generated in the cerebrospinal fluid (CSF) by lipocalin-type PGD synthase and in peripheral regions by myeloid cells, such as mast cells and basophils, via leukocyte-type PGD synthase. The compound 1,25-trans-PGD2 is an isomer of PGD2, characterized by the alteration of the double bond between carbons 5 and 6 from cis(Z) to trans(E). This trans isomer, found as a 2-5% impurity in most commercial PGD2 bulk drug preparations, is primarily synthesized as an analytical standard to identify and quantify this impurity. Based on existing studies of trans isomers of F-type prostaglandins, 5-trans-PGD2 likely exhibits biological activity comparable to its cis isomer, although no specific published reports confirm this for 5-trans-PGD2.

Quinotolast sodium inhibits histamine, LTC4 and PGD2 release in a concentration-dependent manner in the concentration range of 1-100 μg mL.

Nedocromil (FPL 59002) 对多种介质的作用或形成有抑制作用，包括组胺，前列腺素 D2和白三烯 C4。

15(R)-15-methyl Prostaglandin D2 (15(R)15methyl PGD2) 是一种 PGD2 合成类似物，也是一种具有选择性和强效性的 CRTH2 DP2 受体激动剂，可调节嗜酸性粒细胞 CD11b 表达、肌动蛋白聚合和趋化。

Prostaglandin D2-1-glyceryl ester (PGD2-G; PGD2 2-glyceryl ester) is a chemical compound known for its significance in various biological processes. This compound, commonly referred to by its abbreviations PGD2-G or PGD2 2-glyceryl ester, plays a crucial role in the mediation of physiological functions.

Prostaglandin D2 serinol amide为[3H]2-油酰甘油水解反应的弱抑制剂。

15-deoxy-Δ12,14-Prostaglandin D2 (15-deoxy-Δ12,14-PGD2) is a PGD2 metabolite functioning as an agonist for the PGD2 receptor 2 (DP2), with a binding affinity (Ki) of 50 nM for the mouse DP2 receptor expressed in HEK293 cell membranes. It activates eosinophils with an EC50 of 8 nM and enhances the recruitment of steroid receptor coactivator-1 (SRC-1) to peroxisome proliferator-activated receptor γ (PPARγ), initiating PPARγ-mediated transcription at 5 µM concentration. Furthermore, it exhibits cytotoxicity towards L1210 murine leukemia cells with an IC50 of 0.3 µg ml and displays weaker inhibition of ADP-induced platelet aggregation than PGD2, with an IC50 of 320 ng ml.

15(R)-Prostaglandin D2作为一种潜在的前列腺素DP(2)受体激动剂，展现出抗炎活性。它能促进人嗜酸性粒细胞内肌动蛋白的聚合，同时提高血小板中的cAMP水平。

Prostaglandin D2 (PGD2) is a primary enzymatic prostaglandin derived from PGH2 and is abundantly produced in the cerebrospinal fluid (CSF) by the lipocalin-type PGD synthase, and peripherally by myeloid cells such as mast cells and basophils via a hematopoietic-type PGD synthase. PGD2 is chemically unstable and presents challenges for use and analysis due to its brief in vivo half-life. Δ12-PGD2, an initial decomposition product of PGD2, acts as an intermediate in the pathway to Δ12-PGJ2, a cyclopentenone prostaglandin known for its antimitotic and carcinogenic properties. The metabolism of Δ12-PGD2 involves the addition of thiol nucleophiles, a common pathway for many cyclopentenone prostaglandins.

13,14-Dihydro-15-keto prostaglandin D2 (DK-PGD2), a PGD2 metabolite formed by the 15-hydroxyl PGDH pathway, is a selective agonist for the DP2 receptor and can inhibit ion flux in canine colonic mucosa preparation [1].

Hydrocortisone (Cortisol) 是一种糖皮质激素，由肾上腺素皮质分泌。Hydrocortisone 激动糖皮质激素受体，可促进蛋白质分解代谢、糖异生、毛细血管壁稳定性、肾脏钙排泄，并抑制免疫和炎症反应。

Prostaglandin D2 ethanolamide (PGD2-EA) is a bioactive lipid produced by the sequential metabolism of anandamide (arachidonoyl ethanolamide) by cyclooxygenase (COX) enzymes, in particular by COX-2, and PGD synthase. The biosynthesis of PGD2-EA from anandamide can also be increased when anandamide metabolism is diminished by deletion of fatty acid amide hydrolase. PGD2-EA is inactive against recombinant prostanoid receptors, including the D prostanoid receptor. It increases the frequency of miniature inhibitory postsynaptic currents in primary cultured hippocampal neurons, an effect which is the opposite of that induced by anandamide.. PGD2-EA also induces apoptosis in colorectal carcinoma cell lines.

AM-211 sodium is a novel and potent antagonist of the prostaglandin D2 receptor type 2. AM-211 is active in animal models of allergic inflammation. AM211 has high affinity for human, mouse, rat, and guinea pig DP2 and it shows selectivity over other prostanoid receptors and enzymes. AM211 exhibits good oral bioavailability in rats and dogs and dose-dependently inhibits 13,14-dihydro-15-keto-PGD(2)-induced leukocytosis in a guinea pig pharmacodynamic assay.

Ketotifen (HC 20-511)为第二代口服活性非竞争性组胺1(H1)受体阻滞剂兼肥大细胞稳定剂，能体外阻断6-磷酸葡萄糖酸脱氢酶(6-PGD)。其对SARS-CoV-2及流感病毒(Influenza virus)展现出抗病毒活性，适用于自身免疫性脑脊髓炎(EAE)与哮喘发作预防研究。