Splenocytes from C57BL/6 mice were cultured for 24 hours with or without 1ug/ml of SEB, in the absence or presence of I3C or DIM (100uM). Supernatants were collected after 24 hours and ELISA assay was used to detect IL-2, IL-6, TNF-α, and IFN-γ. Statistical significance (p-value <0.05) was determined using GraphPad Prism analysis software with one-way ANOVA and Tukey’s multiple comparsion test (+ indicates significance compared to Vehicle group, and * indicates significance compared to SEB+Vehicle).