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Updated: Feb 26, 2026

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Necroptosis: (Last) Message in a Bubble.

Peter Vandenabeele1, Franck Riquet2, Benjamin Cappe3

  • 1Molecular Signaling and Cell Death Unit, VIB Inflammation Research Center, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium; Methusalem Program, Ghent University, Ghent, Belgium.

Immunity
|July 21, 2017
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Summary
This summary is machine-generated.

Receptor-interacting protein kinase 3 (RIPK3) triggers necroptosis by phosphorylating mixed lineage kinase domain-like pseudokinase (MLKL). MLKL also regulates membrane trafficking and bubble formation during necroptosis through ESCRT interactions.

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Area of Science:

  • Cellular biology
  • Molecular biology
  • Immunology

Background:

  • Necroptosis is a regulated form of cell death.
  • RIPK3-mediated phosphorylation of MLKL is a key event in necroptosis execution.

Purpose of the Study:

  • To elucidate the role of MLKL beyond its function as a necroptosis executioner.
  • To investigate the interaction of MLKL with cellular machinery during necroptosis.

Main Methods:

  • The study references two independent reports (Yoon et al., 2017; Gong et al., 2017).
  • Methods likely involved molecular biology and cell imaging techniques to study protein interactions and cellular events.

Main Results:

  • MLKL plays a role in homeostatic membrane trafficking.
  • MLKL is involved in necroptosis-enhanced bubble formation.
  • MLKL interacts with the Endosomal Sorting Complexes Required for Transport (ESCRT) machinery.

Conclusions:

  • MLKL has multifaceted roles in cellular processes, including both necroptosis execution and membrane trafficking.
  • The interaction between MLKL and the ESCRT machinery is crucial for necroptotic membrane dynamics.