Related Experiment Video
Updated: Dec 3, 2025

Author Spotlight: Achieving High-Purity In Vitro Differentiation of Th17 Cells Using Cytokine Concentration Modulation
Published on: October 25, 2024
Inflammatory Cytokine: IL-17A Signaling Pathway in Patients Present with COVID-19 and Current Treatment Strategy
1Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia.
Abstract:
Coronavirus disease 2019 (COVID-19) is a globally communicable public health disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Eradication of COVID-19 appears practically impossible but, therefore, more effective pharmacotherapy is needed. The deteriorated clinical presentation of patients with COVID-19 is mainly associated with hypercytokinemia due to notoriously elevated pro-inflammatory cytokines such as interleukin (IL)-1B, IL-6, IL-8, IL-17, granulocyte-macrophage colony-stimulating factor (GM-CSF), granulocyte colony-stimulating factor (G-CSF), interferon-γ-inducible protein (IP10), monocyte chemoattractant protein (MCP1), and tumor necrosis factor-α (TNFα), and is usually responsible for cytokine release syndrome. In the cytokine storm, up-regulation of T-helper 17 cell cytokine IL-17A, and maybe also IL-17F, is mostly responsible for the immunopathology of COVID-19 and acute respiratory distress syndrome. Herein, I meticulously review the exuberant polarization mechanism of naïve CD4+ T cells toward Th17 cells in response to SARS-CoV-2 infection and its associated immunopathological sequelae. I also, propose, for clinical benefit, targeting IL-17A signaling and the synergic inflammatory cytokine IL-6 to manage COVID-19 patients, particularly those presenting with cytokine storm syndrome.
Insights
Effective pharmacotherapy is crucial for managing Coronavirus disease 2019 (COVID-19). Targeting interleukin-17A (IL-17A) and interleukin-6 (IL-6) may help manage severe COVID-19, especially in cytokine storm syndrome.
Area of Science:
- Immunology
- Virology
- Pharmacology
Background:
- Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, presents a global health challenge.
- Severe COVID-19 cases often involve hypercytokinemia and cytokine release syndrome.
- Elevated pro-inflammatory cytokines, including IL-17, are implicated in COVID-19 immunopathology and acute respiratory distress syndrome.
Purpose of the Study:
- To review the mechanism of T-helper 17 cell polarization in SARS-CoV-2 infection.
- To explore the role of IL-17A and IL-6 in COVID-19 pathogenesis.
- To propose therapeutic strategies targeting IL-17A and IL-6 for COVID-19 management.
Main Methods:
- Literature review focusing on T-cell polarization and cytokine signaling in COVID-19.
- Analysis of the immunopathological mechanisms driven by SARS-CoV-2 infection.
- Review of existing data on cytokine targeting therapies.
Main Results:
- SARS-CoV-2 infection promotes the polarization of naive CD4+ T cells towards Th17 cells.
- IL-17A and IL-6 play significant roles in the cytokine storm and immunopathology of severe COVID-19.
- Targeting IL-17A and IL-6 pathways shows potential for managing COVID-19 patients.
Conclusions:
- Understanding Th17 cell polarization is key to comprehending COVID-19 immunopathology.
- IL-17A and IL-6 are critical therapeutic targets for severe COVID-19.
- Targeting IL-17A and IL-6 offers a promising pharmacotherapy strategy for COVID-19 patients, particularly those with cytokine storm syndrome.
Related Concept Videos
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
The JAK-STAT Signaling Pathway
Drugs Used in Lower Respiratory Disorders: Overview
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents

