Objective: To develop a freeze-drying process of recombinant protein TATm-survivin(T34A),and to study its in vitro anti-tumor activities.Methods: MTT reduction assay was used to detect anti-tumor effect and as an indicator for optimizing freeze-drying process.Results: Trehalose and mannitol had great influences on the appearance of TATm-survivin(T34A) lyophilized product.TATm-survivin(T34A) had a remarkable anti-tumor effect on A549 and MCF-7/s cells,especially on A549 cells.Furthermore,when combined with a...