Figure 5. DCs Lacking α-Gal-A Amplify Antimicrobial Responses by iNKT Cells.

DCs from WT, Myd88−/−, Gla−/−, and Gla−/− Cd1d1−/− mice were incubated for 16 hr with L. monocytogenes, LPS (1 μg/ml), CpG ODN (2 μg/ml), or were left untreated, prior to coculture with liver iNKT cells. After 72 hr, IFN-γ release into the culture supernatants was quantified by ELISA. Results are representative of at least three independent experiments with similar results. Error bars depicted in column graphs represent mean values ± SEM of triplicate cultures. *p < 0.05; **p < 0.01; ***p < 0.001 as analyzed by Student’s t test. NS, not significant.