PTGS2 and glioblastoma: Interestingly, 3 was able to suppress pro-inflammatory genes, including IL-1α, IL-1β, IL-12, prostaglandin endoperoxide synthase 2 (PTGS-2), and Toll-like receptor 4 (TLR4), as well as the secretion of the pro-inflammatory cytokine IL-6 in LN-18 and T98G glioblastoma cells [137].