The present invention relates to the discovery that PDG
2
is the nautral ligand for orphan receptor CRTH2, which interaction, it will now immediately be recognized, is important in the development of valuable pharmaceuticals. The present invention is therefore related to methods for screening for therapeutic compounds useful in the treatment of PGD
2
-related disorders such as allergy, asthma and inflammation. Appropriate assay methodology is also disclosed.
                            本发明涉及发现 PDG
2
是孤儿受体 CRTH2 的中性
配体,这种相互作用对于开发有价值的药物非常重要。因此,本发明涉及用于治疗 
PGD
2
-相关疾病(如过敏、哮喘和炎症)的治疗化合物的筛选方法。本发明还公开了适当的检测方法。