No Evidence for Human Monocyte-Derived Macrophage Infection and Antibody-Mediated Enhancement of SARS-CoV-2 Infection.

Garcia Nicolas, Obdulio; V'kovski, Philip; Zettl, Ferdinand; Zimmer, Gert; Thiel, Volker; Summerfield, Artur (2021). No Evidence for Human Monocyte-Derived Macrophage Infection and Antibody-Mediated Enhancement of SARS-CoV-2 Infection. Frontiers in cellular and infection microbiology, 11(644574), p. 644574. Frontiers 10.3389/fcimb.2021.644574

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Vaccines are essential to control the spread of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) and to protect the vulnerable population. However, one safety concern of vaccination is the possible development of antibody-dependent enhancement (ADE) of SARS-CoV-2 infection. The potential infection of Fc receptor bearing cells such as macrophages, would support continued virus replication and inflammatory responses, and thereby potentially worsen the clinical outcome of COVID-19. Here we demonstrate that SARS-CoV-2 and SARS-CoV neither infect human monocyte-derived macrophages (hMDM) nor induce inflammatory cytokines in these cells, in sharp contrast to Middle East respiratory syndrome (MERS) coronavirus and the common cold human coronavirus 229E. Furthermore, serum from convalescent COVID-19 patients neither induced enhancement of SARS-CoV-2 infection nor innate immune response in hMDM. Although, hMDM expressed angiotensin-converting enzyme 2, no or very low levels of transmembrane protease serine 2 were found. These results support the view that ADE may not be involved in the immunopathological processes associated with COVID-19, however, more studies are necessary to understand the potential contribution of antibodies-virus complexes with other cells expressing FcR receptors.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Virology and Immunology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)

UniBE Contributor:

Garcia Nicolas, Obdulio; V'kovski, Philip; Zimmer, Gert; Thiel, Volker Earl and Summerfield, Artur

Subjects:

600 Technology > 630 Agriculture
500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

2235-2988

Publisher:

Frontiers

Language:

English

Submitter:

Achim Braun Parham

Date Deposited:

09 Aug 2021 09:25

Last Modified:

15 Aug 2021 03:10

Publisher DOI:

10.3389/fcimb.2021.644574

PubMed ID:

33912475

Uncontrolled Keywords:

ADE COVID-19 convalescent sera SARS-CoV-2 human coronaviruses human monocyte-derived macrophages

BORIS DOI:

10.48350/157741

URI:

https://boris.unibe.ch/id/eprint/157741

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