MTOR and ovarian cancer: To further clarify that HDAC7 promotes ovarian cancer progression via regulating AKT/mTOR signalling, we treated OVCAR‐3 and ES2 cells with MK‐2206 2HCl, an AKT inhibitor and tested the expression pattern of AKT/mTOR‐related proteins such as p‐AKT and p‐mTOR.