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Related Concept Videos

Immune Response Against Viral Pathogens01:29

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
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The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
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Related Experiment Video

Updated: Dec 22, 2025

Author Spotlight: Advancing Immune Monitoring in Critical Care Patients Using Whole Blood Assays
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A Dynamic Immune Response Shapes COVID-19 Progression.

Eugenia Ziying Ong1, Yvonne Fu Zi Chan2, Wan Ying Leong1

  • 1Viral Research and Experimental Medicine Center, SingHealth Duke-NUS Academic Medical Center, Singapore 169856, Singapore; Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore.

Cell Host & Microbe
|May 4, 2020
PubMed
Summary

The early immune response to SARS-CoV-2 (COVID-19) is dynamic. Interleukin-1 (IL1) pathway activation may predict disease severity and offer therapeutic targets for COVID-19.

Keywords:
COVID-19IL1SARS-CoV-2T-cellscytokineearly immune responsetranscriptomic profiling

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Area of Science:

  • Immunology
  • Virology
  • Genomics

Background:

  • The inflammatory response to SARS-CoV-2 infection is critical to COVID-19 pathogenesis.
  • Understanding the dynamics of the early immune response is crucial for managing COVID-19.

Purpose of the Study:

  • To investigate the dynamic nature of the early immune response in COVID-19 patients.
  • To explore the role of specific inflammatory pathways, such as IL1, in COVID-19 severity.
  • To identify potential prognostic biomarkers and therapeutic targets for COVID-19.

Main Methods:

  • Daily transcriptomic profiling of three COVID-19 cases.
  • Daily SARS-CoV-2 testing via throat swabs.
  • Cytokine analysis of whole blood and CD4/CD8 expression analysis.

Main Results:

  • The early immune response in COVID-19 patients is highly dynamic.
  • Increased cytokine expression was observed in the most severe case.
  • Most inflammatory gene expression peaked post-nadir, except for the IL1 pathway; T cell activation correlated with inflammation.

Conclusions:

  • The IL1 pathway and related pro-inflammatory responses may serve as prognostic indicators for COVID-19.
  • Targeting IL1 pathways could be a potential therapeutic strategy for COVID-19.
  • Findings may guide future research into COVID-19 pathogenesis and host-directed therapies.