Fig. 2

The intracellular cytokine production, cell proliferation, and cytolytic activity of CIK cells in breast cancer patients before and after the expansion. a IFN-γ, TNF-α, Granzyme B (GB) and Perforin production of CIK cells before and after the expansion. b The proliferation ability of CIK cells before and after the expansion. (c) The cytolytic activity of CIK cells before and after the expansion in response to MCF7 cell line, at a 3:1, 10:1, or 30:1 E: T ratio. E: T ratio, effector cell to target cell ratio. * p < 0.05