15-Deoxy-Δ-12,14-prostaglandin J2

15-Deoxy-Δ-12,14-prostaglandin J2 (15d-PGJ2) is a cyclopentenone prostaglandin and a metabolite of PGD2. 15-Deoxy-Δ-12,14-prostaglandin J2 is a selective PPARγ (EC₅₀ of 2 µM) and a covalent PPARδ agonist. 15-Deoxy-Δ-12,14-prostaglandin J2 promotes efficient differentiation of C3H10T1/2 fibroblasts to adipocytes with an EC₅₀ of 7 μM^[1][2]. In Vitro: 15-Deoxy-Δ12,14-PGJ2 (15d-PGJ2) is a cyclopentenone prostaglandin that features an electrophilic, α, β-unsaturated ketone (an enone) in the cyclopentenone ring. 15-Deoxy-Δ-12,14-prostaglandin J2 is one of the cyPGs whose functions in inflammation, cell proliferation, survival, and apoptosis have been documented. 15-Deoxy-Δ-12,14-prostaglandin J2 activates PPARδ in a dose-dependent manner. 15-Deoxy-Δ-12,14-prostaglandin J2 activates PPARδ’s transcriptional activity through formation of a covalent adduct between its endocyclic enone at C9 and Cys249 in the receptor’s ligand-binding domain^[1].