PLK1 and neoplasm: The volume of the transplanted tumors was measured every 3 days starting on day 14, recorded and calculated as shown in Fig. 8C. When the average tumor volume reached 100 mm3, the mice were randomly divided into two groups, in which the experimental group was intraperitoneally injected with 25 mg/kg of the PLK1-specific inhibitor GSK461364 every 3 days, whereas the control group was injected with the same volume of solvent for a total of three times, and the tumor volume was continuously recorded every 3 days.