mRNA expression of Ifnb, Stat2, Stat6, Tlr3, Tlr4, Tlr9, Irf9 and Rel in 4T1 cells treated with vehicle or 15 μM CIX for 24 h. Results shown are mean ± SD of four biologically independent experiments. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.