DC3.2R cells were treated with the indicated siRNA. 48 hours after transfection, cells were fed with Ova-Fe (2 µg Ova) with or without 100 µM leupeptin. RF33.70-Luc reporter T cells were added. After overnight incubation, T cell luciferase was measured. Representative plot of two independent experiments. Error bars show SD between 3 replicate wells. p values were calculated using 2-way ANOVA. 