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). Here, PTEN is linked to neoplasm.