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Cell proliferation of SMMC-7721 cells following combined treatment with siBCL-2 and VK2. Cell proliferation was measured by MTT assays 36 h following co-treatment with siBCL-2 (100 nmol/l) and 24 h following 0, 10, 20, 40 and 80 μM of VK2. Data are shown as the means ± SD for three independent experiments. *P<0.05, as compared with the negative control.
