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. 2015 Feb 20;11(1):166–182. doi: 10.4161/15548627.2014.981915

Figure 6.

Figure 6.

Mitochondrial DNA is present in NLRC4 immunoprecipitates and activates a reconstituted NLRC4 inflammasome. (A) BMDMs were grown in BrdU and infected as shown before lysates were immunoprecipitated with anti-NLRC4 or control rabbit serum as indicated. Bound material was slot-blotted to nitrocellulose and then blotted with anti-BrdU. The lower panel shows separate immunoblot of eluted material from NLRC4 immunoprecipitates blotted for NLRC4. (B) As in (A), but reprobed with antibody to 8OHdG. (C) As (A), but blot probed with generic anti-DNA antibody. (D) Immunoblot of immunoprecipitates as set out in (A) but in either control J774A.1 cells or in ρJ774A.1 cells lacking mitochondria. (E) HEK cells transfected with NLRC4 and NAIP were transfected with and without mitochondrial DNA and active CASP1 localized by immunofluorescent imaging using FLICACasp1. Panels show representative images of cells stained with FLICACasp1 (green) and nuclei stained with DAPI (blue) using the indicated transfection reagents. Arrows show spots of active CASP1 formation. Experiments were all repeated 2 or 3 times.