Related Experiment Video
Updated: Dec 10, 2025
09:43
Author Spotlight: Unveiling the Polyfunctionality and Heterogeneity in Immune Responses
Published on: March 8, 2024
2.2K
Interleukin-6 in Covid-19: A systematic review and meta-analysis
Eric A Coomes1, Hourmazd Haghbayan2,3
1Division of Infectious Diseases, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
Reviews in Medical Virology
|August 27, 2020
Summary
Elevated interleukin-6 (IL-6) levels are linked to severe COVID-19 outcomes. This meta-analysis confirms significantly higher IL-6 in complicated COVID-19 cases, suggesting IL-6 inhibition as a potential therapeutic target.
Area of Science:
- Immunology
- Virology
- Critical Care Medicine
Background:
- Coronaviruses, including SARS-CoV-2, can trigger uncontrolled immune responses.
- Previous research indicated elevated interleukin-6 (IL-6) in severe COVID-19 cases.
Purpose of the Study:
- To systematically review and meta-analyze existing evidence on interleukin-6 (IL-6) levels in COVID-19 patients.
- To assess the association between IL-6 concentrations and disease severity.
Main Methods:
- Systematic search of MEDLINE and EMBASE databases, supplemented by grey literature.
- Independent study selection and data extraction by two authors.
- Random effects meta-analysis to calculate ratios of means and 95% confidence intervals (CIs).
Main Results:
- Included 10 studies (8 published, 2 preprints) with 1798 participants.
- Meta-analysis showed 2.9-fold higher IL-6 levels in complicated COVID-19 versus non-complicated disease (n=1302).
- Sensitivity analysis confirmed higher IL-6 in ICU patients (ratio of means=3.24).
Conclusions:
- Significantly elevated IL-6 levels in COVID-19 are associated with adverse clinical outcomes.
- Interleukin-6 (IL-6) inhibition presents a potential therapeutic strategy for managing severe COVID-19.
- High-quality intervention studies are needed to validate IL-6 targeted therapies.
More Related Videos
Related Concept Videos
01:20The JAK-STAT Signaling Pathway
11.2K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
11.2K
01:29Pneumonia II: Pathophysiology
2.2K
The pathophysiology of pneumonia involves the following steps:
2.2K
01:24T Cell Types and Functions
1.9K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.9K
01:20COPD: Pathogenesis and Clinical Features
1.6K
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
1.6K
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
4.0K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
4.0K
01:29Immune Response Against Viral Pathogens
1.5K
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.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.5K