Cytokine Signature Associated With Disease Severity in COVID-19

Jing Guo1, Shuting Wang1, He Xia1

  • 1State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.

Frontiers in Immunology
|September 7, 2021
PubMed

Insights

Cytokine levels in COVID-19 patients correlate with disease severity and progression. Specific cytokines like IP-10 and M-CSF can predict severe outcomes, aiding early intervention for better prognosis.

Area of Science:

  • Immunology
  • Infectious Diseases
  • Biomarker Discovery

Background:

  • Coronavirus disease 2019 (COVID-19) emerged as a global epidemic, necessitating early identification of disease severity and pathogenesis.
  • Understanding the host immune response, particularly cytokine profiles, is crucial for managing COVID-19 progression.

Purpose of the Study:

  • To identify novel cytokine and chemokine biomarkers for predicting COVID-19 severity and progression.
  • To investigate the correlation between cytokine levels and clinical parameters in COVID-19 patients.

Main Methods:

  • Analyzed 48 cytokines and chemokines in 75 COVID-19 patients, 34 healthy controls, and 23 influenza A(H1N1) patients using liquid chip technology.
  • Correlated cytokine levels with clinical severity scores (APACHE II), viral titers, and laboratory markers (creatinine, troponin I, INR, procalcitonin).
  • Performed univariate analyses to identify cytokines associated with COVID-19 severity.

Main Results:

  • 33 cytokines were significantly elevated in COVID-19 patients compared to healthy controls.
  • HGF and IL-1β correlated with APACHE II scores; IP-10, HGF, and IL-10 correlated with virus titers.
  • Six cytokines (G-CSF, HGF, IL-10, IL-18, M-CSF, SCGF-β) were associated with COVID-19 severity, with IP-10 and M-CSF showing excellent predictive value.

Conclusions:

  • Elevated serum cytokine levels in the early stages of COVID-19 are significantly correlated with disease severity.
  • Cytokines serve as valuable warning indicators for COVID-19 severity and progression.
  • Early disease stratification and interventions targeting hypercytokinemia may improve patient prognosis.

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