It was showed that gallic acid effectively against metastasis in various cancer cell types such as myeloid leukemia, breast cancer and ovarian cancer by modulating multiple signalling pathways, including Akt/mTOR, ERK, MMPs, NFκB, PTEN/Akt/HIF-1α/VEGF pathways [42–44]. The gene discussed is PTEN; the disease is ovarian carcinoma.