PTGS2 and glioblastoma: Hübner et al. (61) found that miRNA-93 is a potential “anti-inflammatory tumor suppressor” in GBM and significantly decreases the expression of interleukin-6, interleukin-7, interleukin-1β, leukemia inhibitory factor, granulocyte-colony stimulating factor, COX-2, and CXCL5 in vitro.