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Updated: Feb 2, 2026

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis
Published on: August 7, 2018
Necroptosis and RIPK1-mediated neuroinflammation in CNS diseases
Junying Yuan1, Palak Amin2, Dimitry Ofengeim3
1Department of Cell Biology, Harvard Medical School, Boston, MA, USA. junying_yuan@hms.harvard.edu.
Abstract:
Apoptosis is crucial for the normal development of the nervous system, whereas neurons in the adult CNS are relatively resistant to this form of cell death. However, under pathological conditions, upregulation of death receptor family ligands, such as tumour necrosis factor (TNF), can sensitize cells in the CNS to apoptosis and a form of regulated necrotic cell death known as necroptosis that is mediated by receptor-interacting protein kinase 1 (RIPK1), RIPK3 and mixed lineage kinase domain-like protein (MLKL). Necroptosis promotes further cell death and neuroinflammation in the pathogenesis of several neurodegenerative diseases, including multiple sclerosis, amyotrophic lateral sclerosis, Parkinson disease and Alzheimer disease. In this Review, we outline the evidence implicating necroptosis in these neurological diseases and suggest that targeting RIPK1 might help to inhibit multiple cell death pathways and ameliorate neuroinflammation.
Insights
Necroptosis, a regulated cell death pathway, contributes to neuroinflammation in diseases like Alzheimer's. Targeting receptor-interacting protein kinase 1 (RIPK1) may inhibit cell death and reduce neuroinflammation.
Area of Science:
- Neuroscience
- Cell Biology
- Immunology
Background:
- Apoptosis is vital for nervous system development, but adult CNS neurons resist it.
- Pathological conditions can trigger necroptosis, a regulated necrotic cell death pathway, in the CNS.
- Necroptosis involves key mediators like RIPK1, RIPK3, and MLKL, and promotes neuroinflammation.
Purpose of the Study:
- To review the role of necroptosis in neurodegenerative diseases.
- To highlight the involvement of necroptosis in conditions such as multiple sclerosis, amyotrophic lateral sclerosis, Parkinson disease, and Alzheimer disease.
- To explore the therapeutic potential of targeting RIPK1.
Main Methods:
- Review of existing scientific literature on necroptosis and neurodegeneration.
- Analysis of evidence implicating necroptosis in the pathogenesis of various neurological disorders.
- Discussion of potential therapeutic strategies targeting necroptosis pathways.
Main Results:
- Necroptosis is implicated in the pathogenesis of several neurodegenerative diseases.
- Upregulation of death receptor ligands can sensitize CNS cells to necroptosis.
- Necroptosis exacerbates cell death and neuroinflammation in affected neurological conditions.
Conclusions:
- Targeting RIPK1 presents a potential strategy to inhibit multiple cell death pathways.
- Inhibiting RIPK1 may offer a therapeutic approach to ameliorate neuroinflammation in neurodegenerative diseases.
- Further research into necroptosis inhibitors could lead to novel treatments for neurological disorders.
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