The inflammasome drives GSDMD-independent secondary pyroptosis and IL-1 release in the absence of caspase-1 protease activity
Schneider KS, Groß CJ, Dreier RF, Saller BS, Mishra R, Gorka O, Heilig R, Meunier E, Dick MS, Ćiković T, Sodenkamp J, Médard G, Naumann R, Ruland J, Kuster B, Broz P, Groß O.
Cell Rep. 2017;21(13):3846-3859
Schneider et al. show that, in the absence of GSDMD or caspase-1 protease activity (e.g., in Casp1C284A mice), the inflammasome engages an alternative type of lytic cell death and IL-1 release that contributes to immunity against infection. This secondary form of pyroptosis is dependent on apoptotic caspase activity but distinct from apoptosis.
