Arachidonic acid directly activates the human DP2 receptor

Aberrant type 2 inflammatory responses are the underlying cause of the pathophysiology of allergic asthma, allergic rhinitis and other atopic diseases with an alarming prevalence in relevant parts of the western world. A bulk of evidence points out the important role of the DP2 receptor in this inflammation processes. A screening of different polyunsaturated fatty acids (PUFAs) at a fluorescence resonance energy transfer (FRET)-based DP2 receptor conformation sensor expressed in HEK cells revealed an agonistic effect of the prostaglandin (PG) D