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Updated: Aug 29, 2025
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Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis
Published on: August 7, 2018
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Necroptosis at a glance.
Kidong Kang1, Christa Park2, Francis Ka-Ming Chan1
1Department of Immunology, Duke University School of Medicine, DUMC 3010, Durham, NC 27710, USA.
Journal of Cell Science
|September 13, 2022
Summary
Necroptosis, a programmed cell death, is regulated by RHIM adaptors and MLKL. This process is crucial for host defense, tissue repair, and inflammatory disease, with tight control over its inflammatory signaling.
Area of Science:
- Cellular biology
- Immunology
- Molecular biology
Background:
- Necroptosis, or programmed necrosis, is an inflammatory cell death pathway.
- It plays key roles in host defense against pathogens and maintaining tissue homeostasis.
- Dysregulation is implicated in inflammatory diseases.
Purpose of the Study:
- To provide an overview of necroptosis regulatory mechanisms.
- To highlight the biological functions of necroptosis.
- To discuss its role in tissue homeostasis, infection, and inflammatory diseases.
Main Methods:
- Review of literature on necroptosis.
- Analysis of the roles of RHIM-containing adaptor proteins (RIPK1, RIPK3, TRIF, ZBP1).
- Examination of the effector protein MLKL activation and regulation.
Main Results:
- RHIM adaptors mediate necroptosis induction upon immune receptor activation.
- MLKL activation leads to plasma membrane damage and DAMP release.
- Posttranslational modifications tightly regulate RHIM adaptors and MLKL activity.
Conclusions:
- Necroptosis is a tightly regulated process essential for immunity and homeostasis.
- Understanding its regulation is vital for addressing inflammatory diseases.
- This review provides insights into necroptosis mechanisms and functions.
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