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Necroinflammation in Kidney Disease.

Shrikant R Mulay1, Andreas Linkermann2, Hans-Joachim Anders3

  • 1Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany; and.

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Kidney injury and inflammation are linked in a self-amplifying cycle called necroinflammation. Targeting this process offers new ways to treat kidney damage by blocking cell death and inflammation.

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Immunology and pathologyacute renal failurekidney failure

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Area of Science:

  • Nephrology
  • Immunology
  • Molecular Biology

Background:

  • Kidney injury and inflammation have a bidirectional relationship.
  • Sterile inflammation involves pattern recognition receptors and danger signaling.
  • Renal cell necrosis was previously viewed as a passive process.

Purpose of the Study:

  • To propose a unifying theory of necroinflammation, integrating kidney injury and inflammation.
  • To explore the clinical importance of necroinflammation in various kidney diseases.
  • To identify novel molecular targets for therapeutic intervention.

Main Methods:

  • Review of recent molecular and genetic data on renal cell necrosis.
  • Analysis of signaling pathways involved in cell death and inflammation.
  • Discussion of necroinflammation's role in specific kidney pathologies.

Main Results:

  • Renal cell necrosis is a genetically regulated, active process involving signaling pathways.
  • Kidney injury and inflammation enhance each other in an autoamplification loop (necroinflammation).
  • Necroinflammation contributes to acute kidney injury (AKI) in conditions like thrombotic microangiopathies and sepsis.

Conclusions:

  • Necroinflammation offers a new paradigm for understanding kidney injury.
  • Blocking cell death and/or inflammation presents innovative therapeutic targets.
  • Further research is needed to explore and target necroinflammation in kidney disease.