[Liposomal curcumin inhibits tumor growth and angiogenesis in Lewis lung cancer].

OBJECTIVE: To prepare water soluble curcumin liposome and investigate its anti-tumour and antiangiogenic effects. METHODS: Liposomal curcumin was prepared by alcohol injection method. Proliferation inhibition to murin Lewis lung cancer cell line LL/2 of curcumin liposome was evaluated by MTT assay. Apoptosis and cell cycle arrest induced by liposomal curcumin were analysed by flow cytometry. Anti-tumour effects were investigated in a murine lung cancer model, and the anti-angiogenic effect was determined by aginate encapsulation assay. RESULTS: In vitro, liposomal curcumin inhibits the proliferation of LL/2 cells and induces apoptosis and cell cycle arrest. In vivo, the systemic administration of liposomal curcumin resulted in the inhibition of tumour. Aginate encapsulation assay revealed angiogenesis was decreased by curcumin liposome. CONCLUSION: The curcumin liposome treatment can significantly inhibit tumour growth in vivo.