hematopoietic prostaglandin synthase

PROTAC(H-PGDS)-7 is a selective and potent small molecule hematopoietic prostaglandin D synthase (H-PGDS) PROTAC degradation agent that exhibits degradation activity in KU812 cells with a DC50 of 17.3 pM. It effectively inhibits prostaglandin D2 (PGD2) and is a candidate compound for the treatment of DMD and other H-PGDS-related diseases.

HPGDS inhibitor 2 (GSK-2894631A) is a potent, selective hematopoietic prostaglandin D synthase (h-pgds) inhibitor, IC50 = 9.9 nm.

HQL-79 is a selective and orally active human hematopoietic prostaglandin D synthase (H-PGDS) inhibitor. It inhibits the synthesis of PGD2 and acts as an anti-allergic agent (Kd: 0.8 μM and IC50: 6 μM). It also shows no obvious effect on COX-1, COX-2, m-P

HPGDS inhibitor 1 is a novel and selective inhibitor for Hematopoietic Prostaglandin D Synthase (HPGDS) with an IC50 Value of 0.7 nM.

TFC-007 is a selective and efficient hematopoietic prostaglandin D synthase (H-PGDS) inhibitor, suppressing inflammatory factors. It can be used to synthesize H-PGDS degrader PROTAC (H-PGDS)-1 and study cedar pollen-induced guinea pig allergic rhinitis.

hPGDS-IN-1 is a hPGDS inhibitor. This compound specifically blocks the activity of human hematopoietic prostaglandin D synthase (hPGDS), an enzyme that catalyzes the conversion of PGH2 to PGD2. [Purity: 99.55% | Suppliers: MedChemExpress]

Prostaglandin D2 (PGD2) is the major eicosanoid product of mast cells and is produced in large quantities by hematopoietic PGD synthase during allergic and asthmatic anaphylaxis. It causes vasodilation, flushing, hypotension, and is an inhibitor of platelet aggregation. Prostaglandin D2 methyl ester (PGD2 methyl ester) is a more lipid-soluble, cell-permeable prodrug form of PGD2. It binds to the human and mouse PGD2 receptors (DP1 and CRTH2/DP2) with 5-10 fold lower affinity than PGD2.

Prostaglandin D2 is synthesized by hematopoietic-type PGD-synthase (H-PGDS) in mast cells and is released in large quantities during allergic and asthmatic anaphylaxis. PGD2 is also produced in the brain by lipocalin-PGD-synthase also known as β-trace. In the brain, PGD2 produces normal physiological sleep and lowering of body temperature. Further pharmacological actions include inhibition of platelet aggregation and relaxation of vascular smooth muscle. tetranor-PGDM is a major metabolite of PGD2 that is detectable in human and mouse urine. The levels of tetranor-PGDM and 2,3-dinor-11β-PGF2α , a related PGD2 metabolite, in human urine were found to be 1.5 ± 0.3 and 0.6 ± ng/mg creatinine, respectively. tetranor-PGDM was detected in murine urine at a level of 8.1 ± 1.3 ng/mg creatinine.

TAS 205 is an inhibitor of hematopoietic prostaglandin D synthase (H-PGDS; IC50= 55.8 nM).1It is selective for H-PGDS over lipocalin-type PGDS (L-PGDS) at 100 μM, as well as over enzyme and receptor panels at 10 μM. TAS 205 inhibits production of prostaglandin D2induced by A23187 in KU812 human and RBL-2H3 rat basophils with IC50values of 78.3 and 181.3 nM, respectively. It inhibits ovalbumin-induced nasal lavage fluid eosinophil infiltration and late-phase nasal obstruction in an ovalbumin-sensitized guinea pig model of allergic rhinitis when administered at a dose of 30 mg/kg. 1.Aoyagi, H., Kajiwara, D., Tsunekuni, K., et al.Potential synergistic effects of novel hematopoietic prostaglandin D synthase inhibitor TAS-205 and different types of anti-allergic medicine on nasal obstruction in a Guinea pig model of experimental allergic rhinitisEur. J. Pharmacol.875173030(2020)

HPGDS inhibitor 3 is a powerful oral compound that selectively inhibits the hematopoietic prostaglandin D synthase (H-PGDS). With an IC50 value of 9.4 nM and EC50 of 42 nM, it demonstrates high potency in peripherally restricting H-PGDS. Moreover, HPGDS inhibitor 3 exhibits excellent selectivity with no associated central nervous system toxicity. This compound also possesses favorable pharmacokinetic properties in mouse, rat, and dog models. Additionally, HPGDS inhibitor 3 displays noteworthy anti-inflammatory activity [1].

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.

PROTAC(H-PGDS)-8 is a PROTAC degrader targeting Hematopoietic prostaglandin D synthase (H-PGDS), exhibiting an IC50 of 0.14 μM [1].

Pizuglanstat is a hematopoietic prostaglandin synthase inhibitor.