Back to article: Leishmania guyanensis parasites block the activation of the inflammasome by inhibiting maturation of IL-1β

FIGURE 3: L. guyanensis does not activate the inflammasome in macrophages, irrespective of its LRV1 status. (A-B) BMDMs from C57BL/6 WT mice were primed with 200 ng/ml of LPS for 3 hours. Subsequently, cells were incubated with LgyLRV1+ or LgyLRV1- parasites, poly(I:C) or culture medium. Additionally, a 1 hour treatment with 5 µM of Nigericin was used as a positive control for the inflammasome activation. Proteins were extracted from cell lysates (CL) and supernatants (SN). (A) Cell lysates were blotted for caspase-1. (B) IL-1β detected by ELISA in cell-free supernatant. Graphs are representative of a minimum of three independent experiments, using four technical and two biological replicates, and showed as mean ± SEM. Non-parametric Student’s t-test was used to calculate significance.