pgd2-in-1

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。

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

hPGDS-IN-1是 hPGDS 抑制剂，使用荧光偏振检测或通过 EIA 法测得的 IC50值为12 nM。

Prostaglandin D1 (PGD1) is the theoretical D-series metabolite of dihomo-γ-linolenic acid (DGLA), but to date it has not been isolated as a natural product. It is an inhibitor of ADP-induced platelet aggregation in humans with an IC50 value of 320 ng/ml, about 1/10 as potent as PGD2. 13,14-dihydro-15-keto Prostaglandin D1 (13,14-dihydro-15-keto PGD1) is the theoretical metabolite of PGD1 via the 15-hydroxy PG dehydrogenase metabolic pathway. No biological studies for this compound have been reported.

2,3-dinor-11β-Prostaglandin F2α (2,3-dinor-11β-PGF2α) was recovered from the urine of both normal monkeys and humans when infused with radiolabeled PGD2, where it represented approximately 1% and 4% of the infused radiolabeled dose, respectively. 2,3-dinor-11β-PGF2α has also been recovered from the urine of mastocytosis patients, where it is excreted in large amounts. In human asthmatic patients, 2,3-dinor-11β-PGF2α represents about 40% (as determined by GC/MS) of the immunoreactive 11β-PGF2α when measured using 's 11β-PGF2α EIA Kit . The excretion rate for 2,3-dinor-11β-PGF2α is approximately 200-250 ng/24 hours in a normal adult.

Protectin conjugates in tissue regeneration 1 (PCTR1) is a specialized pro-resolving mediator (SPM) synthesized from docosahexaenoic acid . DHA is oxidized to 16S,17S-epoxy-protectin, which is then converted to PCTR1 by glutathione S-transferase. PCTR1 levels increase during resolution of acute microbial-induced peritonitis in mice. PCTR1 (30 ng, i.p.) administration 12 hours post-infection increases macrophage numbers and activity and shortens the resolution phase of inflammation by 57%. It also reduces the levels of PGE2 , PGD2 , and TXB2 in peritoneal exudates.

Maresin conjugates in tissue regeneration 2 (MCTR2) is a specialized pro-resolving mediator (SPM) synthesized from docosahexaenoic acid in macrophages at the site of inflammation. DHA is oxidized to maresin 1 , which is converted to MCTR1 by glutathione S-transferase Mu 4 or leukotriene C4 synthase then to MCTR2 by γ-glutamyl transferase. MCTR2 accelerates tissue regeneration in planaria (1 and 100 nM). Pretreatment with MCTR2 prior to E. coli administration reduces neutrophil infiltration, shortens the inflammatory resolution period, and increases phagocytosis of E. coli by macrophages. When administered at a dose of 100 ng 12h post E. coli infection in a mouse model of peritonitis, MCTR2 selectively reduced the amount of the eicosanoids PGD2 and PGF2α in the exudate.

Maresin conjugates in tissue regeneration 3 (MCTR3) is a specialized pro-resolving mediator (SPM) synthesized from docosahexaenoic acid in macrophages. DHA is oxidized to maresin 1 , which is converted to MCTR1 by glutathione S-transferase Mu 4 or leukotriene C4 synthase, then to MCTR2 by γ-glutamyl transferase, and to MCTR3 by dipeptidase. MCTR3 accelerates tissue regeneration in planaria (1 and 100 nM) approximately as potently as MCTR2 and more potently than MCTR1. Pretreatment with MCTR3 prior to E. coli administration in mice reduces neutrophil infiltration, shortens the inflammatory resolution period, and increases phagocytosis of E. coli by macrophages. When administered at a dose of 100 ng 12h post E. coli infection in a mouse model of peritonitis, MCTR3 selectively reduces the amount of the eicosanoids PGD2 , PGE2 , PGF2α , and TXB2 in the exudate.

Elevated intraocular pressure (IOP) is an important risk factor in developing glaucoma. Certain prostaglandins such as PGF2α and PGD2, have been shown to reduce IOP. AL 6598 is the isopropyl ester prodrug of AL 6556, a PGD2 receptor agonist that binds to DP receptors with a Ki value of 3.2 μM and demonstrates an EC50 value of 0.80 μM in an in vitro functional assay. Designed to enhance corneal absorption, AL 6598 produces a maximum 53% drop in IOP of the ocular hypertensive monkey with a 1 μg dose given twice daily.

Prostaglandin J2 (PGJ2) 是前列腺素 D2 (PGD2) 的一种内源性代谢物，是一种有效的 PGD2 受体 (DP) 激动剂，对 hDP 和 hCRTH2 的 Ki 分别为 0.9 nM 和 6.6 nM。Prostaglandin J2 刺激细胞内环 AMP 的产生，EC50值为 1.2 nM。Prostaglandin J2 诱导氧化应激和神经细胞凋亡。Prostaglandin J2 诱导泛素化 (Ub) 蛋白的积累 聚集。Prostaglandin J2 具有高度神经毒性，可导致许多神经退行性疾病，包括阿尔茨海默病 (AD) 和帕金森病 (PD)。

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.

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.

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。

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].