Specialized Pro-Resolving Mediators as Potential Regulators of Inflammatory Macrophage Responses in COVID-19

Maria G Balta1, Evangelos Papathanasiou2,3, Panagiotis F Christopoulos4

  • 1The CrossTalk Group, Institute of Oral Biology, University of Oslo, Oslo, Norway.

Insights

Specialized pro-resolving mediators (SPMs) can help manage COVID-19 by regulating macrophage activity and reducing cytokine storms. SPMs offer therapeutic potential for COVID-19 by promoting inflammation resolution and a pro-resolving macrophage phenotype.

Area of Science:

  • Immunology
  • Molecular Biology
  • Pathogenesis

Background:

  • Severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) pandemic causes significant global health and economic impact.
  • Macrophages play a central role in COVID-19 pathogenesis and lethality.
  • Managing the macrophage-induced cytokine storm is crucial for COVID-19 treatment.

Purpose of the Study:

  • To review the homeostatic functions of specialized pro-resolving mediators (SPMs) on macrophages.
  • To discuss the molecular links between lipid mediators and COVID-19 severity.
  • To explore the clinical potential of SPMs in COVID-19 immunotherapeutics.

Main Methods:

  • Literature review of scientific articles on SPMs, macrophages, and COVID-19.
  • Analysis of molecular mechanisms underlying SPM-macrophage interactions.
  • Evaluation of existing and potential clinical applications of SPMs.

Main Results:

  • SPMs regulate macrophage infiltration and cytokine production.
  • SPMs promote a pro-resolving macrophage phenotype, aiding inflammation resolution.
  • Specific molecular pathways link lipid mediators to COVID-19 severity.

Conclusions:

  • SPMs demonstrate significant therapeutic potential in managing COVID-19.
  • Targeting macrophage-mediated inflammation with SPMs is a promising immunotherapeutic strategy.
  • Further clinical investigation of SPMs for COVID-19 is warranted.

Related Concept Videos

Inflammatory Response01:28

Inflammatory Response

An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
14.9K
T Cell Types and Functions01:24

T Cell Types and Functions

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...
1.7K
Inflammation01:38

Inflammation

Overview
57.5K
Differentiation of Common Myeloid Progenitor Cells01:15

Differentiation of Common Myeloid Progenitor Cells

Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.6K
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
7.1K