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Immune system perturbations in patients with long COVID

Lucie Rodriguez1, Petter Brodin2

  • 1Department of Women's and Children's Health, Karolinska Institutet, 17165, Solna, Sweden.

Trends in Molecular Medicine
|January 4, 2024
PubMed

Insights

Long COVID patients show heightened antibody responses not only to SARS-CoV-2 but also to other viruses, suggesting impaired immune control. This indicates a broader issue with viral defense mechanisms in long COVID (LC).

Area of Science:

  • Immunology
  • Virology
  • Infectious Diseases

Background:

  • Long COVID (LC) is a complex condition with diverse symptoms.
  • The underlying immunological mechanisms of LC remain incompletely understood.
  • Multimodal data can provide deeper insights into LC pathophysiology.

Purpose of the Study:

  • To investigate immune cell, protein, and physiological profiles in long COVID patients.
  • To identify immunological differences between LC subjects and controls.

Main Methods:

  • Multimodal analysis of immune cells.
  • Proteomic analysis of patient samples.
  • Assessment of physiological parameters.
  • Comparative analysis between long COVID and control groups.

Main Results:

  • Long COVID subjects displayed elevated antibody responses to SARS-CoV-2.
  • A significant finding was the increased antibody response to herpes viruses in LC patients.
  • These findings suggest a generalized impairment in viral control mechanisms.

Conclusions:

  • Long COVID is associated with dysregulated immune responses.
  • The observed antibody patterns indicate a potential compromise in the body's ability to control viral infections.
  • Further research into immune suppression in LC is warranted.

Keywords:
PACSimmunomonitoringlong COVIDsystems immunology

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