Wiring and rewiring PANoptosis: Molecular vulnerabilities for targeting inflammatory cell death in human disease

Kirti Upmanyu1, Saurabh Upadhyay2

  • 1Department of Biosciences, Jamia Millia Islamia, New Delhi, India.

PubMed

Insights

PANoptosis integrates pyroptosis, apoptosis, and necroptosis via PANoptosomes. This unified inflammatory cell death pathway offers new therapeutic targets for immune regulation and disease treatment.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Medicine

Background:

  • Inflammatory cell death pathways like pyroptosis, apoptosis, and necroptosis were previously considered distinct.
  • Emerging evidence suggests convergence through shared molecular components, enabling cells to overcome pathogen or tumor immune evasion.
  • A unified mechanistic framework for PANoptosis, integrating these pathways, has been lacking.

Purpose of the Study:

  • To present a novel, sensor-specific framework for PANoptosis.
  • To dissect PANoptosome architecture and the roles of innate immune sensors (ZBP1, RIPK1, AIM2, NLRP12).
  • To analyze cross-pathway interactions and the adaptable logic of PANoptosis in immune activation and cell fate.

Main Methods:

  • Review of existing literature on pyroptosis, apoptosis, and necroptosis.
  • Analysis of innate immune sensor functions in PANoptosome assembly.
  • Integration of signaling pathways involving caspase-8, RIP kinases, and gasdermins.

Main Results:

  • PANoptosis unifies distinct inflammatory cell death pathways through PANoptosomes.
  • Distinct innate immune sensors act as hubs for context-dependent inflammatory cell death.
  • PANoptosis functions as an adaptable logic circuit regulating immune responses and cell fate.

Conclusions:

  • PANoptosis plays dual roles in disease, offering protection in infection/cancer but contributing to pathology in cytokine storms and neurodegeneration.
  • Understanding sensor-specific PANoptotic signaling provides precise therapeutic entry points.
  • PANoptosis is a master regulator of inflammatory cell death and a key target for immune interventions.

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