Figure 4From: The immunomodulator PSK induces in vitro cytotoxic activity in tumour cell lines via arrest of cell cycle and induction of apoptosis Cell cycle analysis of cells treated with PSK. Tumour cell lines were treated with PSK for 96 h. Cell cycle distribution was determined by flow cytometry using BrdU incorporation and 7-AAD. Data indicate the percentage of cells in each phase of cell cycle. Results are representative of three independent experiments.Back to article page