New components of the necroptotic pathway
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Updated: May 17, 2026

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis
Published on: August 7, 2018
Zhenru Zhou1, Victor Han, Jiahuai Han
1State Key Laboratory of Cellular Stress Biology and School of Life Sciences, Xiamen University, Xiamen, China.
Abstract:
Programmed necrosis, also known as necroptosis, has recently drawn great attention. As an important cellular regulation mechanism, knowledge of its signaling components is expanding. Necroptosisis demonstrated to be regulated by the RIP1 and RIP3 kinases, and its pathophysiological importance has been confirmed in a number of disease models. Here we review the new members of this necroptosis pathway, MLKL, PGAM5, Drp1 and DAI, and discuss some of their possible applications according to recent findings.
Insights
Necroptosis, a programmed cell death pathway, is regulated by RIP1 and RIP3 kinases. New pathway members like MLKL, PGAM5, Drp1, and DAI are expanding our understanding and potential therapeutic applications.
Area of Science:
- Cellular Biology
- Molecular Biology
- Immunology
Background:
- Programmed necrosis, or necroptosis, is a critical cellular process.
- Its regulation involves key kinases like RIPK1 and RIPK3.
- The pathophysiological roles of necroptosis are increasingly recognized in various diseases.
Purpose of the Study:
- To review newly identified components of the necroptosis signaling pathway.
- To discuss the functions of MLKL, PGAM5, Drp1, and DAI in necroptosis.
- To explore potential applications of these findings in disease contexts.
Main Methods:
- Literature review of recent research on necroptosis signaling.
- Analysis of the roles of MLKL, PGAM5, Drp1, and DAI.
- Synthesis of findings related to disease models and therapeutic potential.
Main Results:
- Identification of MLKL, PGAM5, Drp1, and DAI as significant contributors to the necroptosis pathway.
- Elucidation of their specific molecular functions within the pathway.
- Emerging evidence linking these components to disease pathogenesis.
Conclusions:
- The necroptosis pathway is more complex than previously understood, involving novel key players.
- Understanding these new components offers new avenues for therapeutic intervention in necroptosis-related diseases.
- Further research into MLKL, PGAM5, Drp1, and DAI is crucial for clinical translation.
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