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Urinary obstruction is associated with inflammation and oxidative stress, leading to renal dysfunction. Previous studies have shown that 15-deoxy-Δ 12,14 -prostaglandin J 2  (15d-PGJ 2 ) has both antioxidant and anti-inflammatory effects. Using a unilateral ureteral obstruction (UUO) mouse model, we examined the effects of 15d-PGJ 2  on oxidative stress and inflammation in the kidney. Mice were subjected to UUO for 3 days and treated with 15d-PGJ 2 . Protein and RNA expression were examined using immunoblotting and qPCR. 15d-PGJ 2  increased NF-E2-related nuclear factor erythroid-2 (Nrf2) protein expression in response to UUO, and heme oxygenase 1 (HO-1), a downstream target of Nrf2, was induced by 15d-PGJ 2 . Additionally, 15d-PGJ 2  prevented protein carbonylation, a UUO-induced oxidative stress marker. Inflammation, measured by nuclear NF- κ B, F4/80, and MCP-1, was increased in response to UUO and further increased by 15d-PGJ 2 . Renal injury was aggravated by 15d-PGJ 2  treatment as measured by kidney injury molecule-1 (KIM-1) and cortical caspase 3 content. No effect of 15d-PGJ 2  was observed on renal function in mice subjected to UUO. This study illustrates differentiated functioning of 15d-PGJ 2  on inflammation and oxidative stress in response to obstructive nephropathy. High concentrations of 15d-PGJ 2  protects against oxidative stress during 3-day UUO in mice; however, it aggravates the associated inflammation.

mediators of inflammation

15-Deoxy-Δ<sup>12,14</sup>-prostaglandin J<sub>2</sub>Exerts Antioxidant Effects While Exacerbating Inflammation in Mice Subjected to Ureteral Obstruction

15-Deoxy-Δ12,14-prostaglandin J2Exerts Antioxidant Effects While Exacerbating Inflammation in Mice Subjected to Ureteral Obstruction

15-Deoxy-Δ^12,14-prostaglandin J₂Exerts Antioxidant Effects While Exacerbating Inflammation in Mice Subjected to Ureteral Obstruction