(A) Gross morphology of mice after intratumoural injection with Pt complex and cisplatin (3 mg/kg Pt drug at 1st, 3rd, and 5th day) at 11th day. (B) H&E staining of mice kidney treated with PBS, Pt complex, and cisplatin, the red-star indicated the damaged kidney region (C) The tumour volumes of mice model (murine breast cancer model, 4T1 cell) over 21 days (Injected doses: 20 μL for PBS, 3 mg/kg for cisplatin, 3 mg/kg for Pt complex. Injected on 1st, 3rd, and 5th day). (D) Mouse body weight over 21 days for animals treated as in (C). (E) Tumour growth inhibition rate with Pt complex or cisplatin treatment at 11 day for animals treated as in (C).