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[Immunomodulation in sepsis].

C Höflich1, H D Volk

  • 1Institut für Medizinische Immunologie, Charité Campus Mitte, Berlin, Germany.

Der Chirurg; Zeitschrift Fur Alle Gebiete Der Operativen Medizen
|November 14, 2002
PubMed
Summary
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Sepsis triggers complex immune responses, including "immunoparalysis." Tailoring therapies to a patient's immune status, whether hyper-inflammatory or hypo-inflammatory, is crucial for effective treatment.

Area of Science:

  • Immunology
  • Critical Care Medicine
  • Inflammation Research

Context:

  • Sepsis, a life-threatening organ dysfunction caused by a dysregulated host response to infection, involves complex inflammatory processes.
  • Traditional anti-inflammatory strategies for sepsis have shown limited success, suggesting a need for more nuanced therapeutic approaches.
  • The concept of sequential systemic hyper-inflammation followed by hypo-inflammation (termed "immunoparalysis") is increasingly recognized in sepsis pathogenesis.

Purpose:

  • To evaluate parameters for assessing patient immunocompetence in sepsis.
  • To explore immunomodulating therapies based on individual patient immune status.
  • To investigate methods for reconstituting immune function in septic patients experiencing "immunoparalysis".

Summary:

Related Experiment Videos

  • Monocytic HLA-DR expression and ex vivo LPS-induced TNF-a secretion are reliable markers of immunocompetence in sepsis.
  • Plasma cytokines, lipopolysaccharide-binding protein (LBP), and procalcitonin (PCT) complement classical markers for a comprehensive inflammatory and infection status assessment.
  • Therapeutic interventions such as interferon-gamma (IFN-g), granulocyte-macrophage colony-stimulating factor (GM-CSF), or hemofiltration/plasmapheresis can restore immune function in patients with "immunoparalysis".

Impact:

  • Personalized immunomodulating therapies for sepsis should be guided by the patient's specific immunocompetence and inflammatory/infectious status.
  • Patients in a hyper-inflammatory phase may benefit from anti-inflammatory treatments.
  • Patients with sepsis-induced "immunoparalysis" require immunoreconstitution or immunostimulating therapies to improve outcomes.