l-pgds

HPGDS inhibitor 1 是口服具有活性的HPGDS 选择性抑制剂，在酶和细胞分析中的IC50值分别为 0.6 nM 和 32 nM，但对 L-PGDS、mPGES、COX-1、COX-2 、5-LOX 无抑制作用。

AT56 是口服有活性的脂钙蛋白型前列腺素 D 合酶 (L-PGDS) 选择性抑制剂，其IC50=95 μM，Ki=75 μM。它能够特异性地抑制L-PGDS 催化的 PGD2介导的嗜睡或疼痛反应。

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

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)