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Are all cytokine storms the same?

Nicki Panoskaltsis1,2

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Summary

Cytokine release syndrome (CRS) involves uncontrolled inflammation. This commentary questions if CRS treatments should vary by cause and phase, and if biomarkers can predict CRS and its long-term effects.

Keywords:
COVID-19CRSCytokine release syndromeCytokine stormSARS-CoV-2TGN1412

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Area of Science:

  • Immunology
  • Critical Care Medicine
  • Pathophysiology

Background:

  • Cytokine release syndrome (CRS) is a severe inflammatory response characterized by excessive pro-inflammatory cytokine release.
  • An imbalance in immunomodulatory signals, like interleukin-10 (IL-10), contributes to uncontrolled inflammation, tissue damage, and potential fatality.
  • CRS is a hallmark of severe COVID-19, with treatments often extrapolated from other conditions.

Purpose of the Study:

  • To establish a foundational framework for understanding and managing CRS.
  • To critically evaluate current treatment paradigms for CRS, irrespective of the initiating insult.
  • To explore the necessity of dynamic biomarker assessment for prediction and long-term patient monitoring.

Main Methods:

  • This commentary synthesizes existing knowledge on CRS pathophysiology and management.
  • It poses critical questions regarding the heterogeneity of CRS and treatment applicability across different phases and causes.
  • It emphasizes the need for a structured approach to patient follow-up.

Main Results:

  • The study highlights that CRS, while sharing common features, may differ based on the initiating insult.
  • Current treatment strategies applied to COVID-19-associated CRS show variable efficacy, prompting re-evaluation.
  • The commentary underscores the lack of established predictive biomarkers and long-term monitoring protocols for CRS.

Conclusions:

  • A nuanced approach to CRS management is required, considering the specific cause and disease phase.
  • Further research is needed to identify predictive biomarkers for CRS and to define optimal long-term monitoring strategies.
  • Standardized frameworks for CRS treatment and follow-up are essential for improving patient outcomes.