Abstract

The COVID-19 pandemic caused by infection with SARS-CoV-2 has led to more than 200,000 deaths worldwide. Several studies have now established that the hyperinflammatory response induced by SARS-CoV-2 is a major cause of disease severity and death in infected patients. Macrophages are a population of innate immune cells that sense and respond to microbial threats by producing inflammatory molecules that eliminate pathogens and promote tissue repair. However, a dysregulated macrophage response can be damaging to the host, as is seen in the macrophage activation syndrome induced by severe infections, including in infections with the related virus SARS-CoV. Here we describe the potentially pathological roles of macrophages during SARS-CoV-2 infection and discuss ongoing and prospective therapeutic strategies to modulate macrophage activation in patients with COVID-19.

Keywords

MacrophageInflammationImmunologyPathologicalImmune systemPopulationMedicineInnate immune systemPandemicDiseaseCoronavirus disease 2019 (COVID-19)BiologyInfectious disease (medical specialty)Pathology

MeSH Terms

AnimalsBetacoronavirusCOVID-19Coronavirus InfectionsHumansInflammationMacrophage ActivationMacrophagesMonocytesPandemicsPneumoniaViralSARS-CoV-2

Affiliated Institutions

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Publication Info

Year
2020
Type
review
Volume
20
Issue
6
Pages
355-362
Citations
2515
Access
Closed

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Cite This

Miriam Mérad, Jérôme C. Martin (2020). Pathological inflammation in patients with COVID-19: a key role for monocytes and macrophages. Nature reviews. Immunology , 20 (6) , 355-362. https://doi.org/10.1038/s41577-020-0331-4

Identifiers

DOI
10.1038/s41577-020-0331-4
PMID
32376901
PMCID
PMC7201395

Data Quality

Data completeness: 86%