Analysis of mRNA expression levels by quantitative real-time PCR for NLRP3 inflammasome components NLRP3 (A), ASC (B), caspase-1 (C), and IL-1β (D) in obstructed kidneys of mPGES-1 WT and KO mice. NLRP3, Nod-like receptor pyrin domain containing 3; ASC, apoptosis-associated speck-like protein containing a caspase recruitment domain; IL-1β: interleukin-1β. WT-Sham, n = 6; WT-7UUO, n = 7; KO-Sham, n = 6; KO-7UUO, n = 7. *P < 0.05 compared with Sham groups. #P < 0.05 compared with WT-7UUO. §P < 0.05 compared with WT-Sham.