NFKB1 and neoplasm: The expression and transcriptional activity of NF-κB (p65) (Figure 6B) and the contents of prostaglandin glycerol esters (PG-Gs) and prostaglandin ethanolamides (PG-EAs) (Figure 6C), which are related to tumor malignancy, were improved by the phosphorylation of phosphatase and tensin homolog (PTEN) in the U87MG and U251 cell lines (Figure 6A).