MLN4924 inhibits TNF-induced expression of cIAP2, TRAF1 and A20. (A and B) Monocytes and iDCs were incubated in medium in the presence of the indicated mixtures of nec-1 (90 μM), zVAD-fmk (50 μM), TNF (200 ng·mL−1) and MLN4924 (5 μM). Total cell lysates were then subjected to Western blot analysis to evaluate the expression of the indicated proteins. (A). Alternatively, total RNA was isolated and subjected to qPCR evaluation of expression of A20, TRAF1 and FLIP. (B) Data show the average of three experiments with three independent donors.