Uncovering the PIDDosome and caspase-2 as regulators of organogenesis and cellular differentiation

Cell Death Differ. 2020 Jul;27(7):2037-2047. doi: 10.1038/s41418-020-0556-6. Epub 2020 May 15.


The PIDDosome is a multiprotein complex that drives activation of caspase-2, an endopeptidase originally implicated in apoptosis. Yet, unlike other caspases involved in cell death and inflammation, caspase-2 seems to exert additional versatile functions unrelated to cell death. These emerging roles range from control of transcription factor activity to ploidy surveillance. Thus, caspase-2 and the PIDDosome act as a critical regulatory unit controlling cellular differentiation processes during organogenesis and regeneration. These newly established functions of the PIDDosome and its downstream effector render its components attractive targets for drug-development aiming to prevent fatty liver diseases, neurodegenerative disorders or osteoporosis.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't