IL6 and infection: Similarly, at 12 h post infection, C1q-treated cells exhibited lower gene expression levels of IL-6 (~ −5-fold) (Figure 7B), IFN-α (~−1.9-fold) (Figure 7C), IL-1β (~−4.5-fold) (Figure 7D), and TNF-α (~−4.4-fold) (Figure 7E).