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Decoding PANoptosis: Crosstalk of cell death pathways in immunity and inflammation
K Subashree1, Kannan Harithpriya1, Goutham V Ganesh1,2
1Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Tamil Nadu, 603203, Kattankulathur, India.
Abstract:
PANoptosis is an emerging regulated cell death that integrates the molecular machinery of apoptosis, necroptosis, and pyroptosis into a combined, highly coordinated process. Defined as a distinct, integrative form of cell death, PANoptosis simultaneously engages these three pathways through a multiprotein scaffold known as the PANoptosome, ensuring robust elimination of infected, damaged, or transformed cells. Initially described in response to viral infections, PANoptosis is now recognized as a critical regulator of immune defense, inflammation, and tissue homeostasis, with broad implications for infectious diseases, cancer, autoimmune disorders, neurodegeneration, and ischemia-reperfusion injury. This review provides a comprehensive overview of the molecular composition of the PANoptosome, key triggers of PANoptosis, and its morphological and biochemical hallmarks. We further discuss its dual roles as both a protective and pathogenic mechanism, highlighting context-dependent contributions to host defense and disease progression. Finally, we examine therapeutic opportunities, including small-molecule inhibitors and gene-editing approaches, and outline current challenges, such as the identification of reliable biomarkers and the need for precision-targeted strategies. By integrating recent advances, this review highlights PANoptosis as a conceptual shift in cell death biology and a promising avenue for novel interventions in inflammation-driven diseases.
Insights
PANoptosis is a novel cell death pathway integrating apoptosis, necroptosis, and pyroptosis via the PANoptosome. This regulated cell death is crucial for immunity and homeostasis, offering therapeutic potential for inflammatory diseases.
Area of Science:
- Cell Biology
- Immunology
- Molecular Medicine
Background:
- PANoptosis is an emerging regulated cell death (RCD) pathway.
- It integrates apoptosis, necroptosis, and pyroptosis.
- PANoptosis utilizes a multiprotein scaffold called the PANoptosome.
Purpose of the Study:
- To provide a comprehensive overview of PANoptosis.
- To discuss the molecular composition, triggers, and hallmarks of the PANoptosome.
- To explore the dual roles and therapeutic opportunities of PANoptosis.
Main Methods:
- Review of existing literature on PANoptosis.
- Analysis of molecular mechanisms and pathways involved.
- Discussion of clinical implications and therapeutic strategies.
Main Results:
- PANoptosis ensures robust elimination of infected, damaged, or transformed cells.
- It plays a critical role in immune defense, inflammation, and tissue homeostasis.
- PANoptosis has implications for infectious diseases, cancer, autoimmune disorders, and neurodegeneration.
Conclusions:
- PANoptosis represents a conceptual shift in cell death biology.
- It offers promising therapeutic avenues for inflammation-driven diseases.
- Further research is needed for reliable biomarkers and precision-targeted strategies.
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