Goncalves, Rute;
Couto, Joana;
Ferreirinha, Pedro;
Costa, Jose Maria;
Silverio, Diogo;
Silva, Marta L;
Fernandes, Ana Isabel;
... Saraiva, Margarida; + view all
(2023)
SARS-CoV-2 variants induce distinct disease and impact in the bone marrow and thymus of mice.
iScience
, 26
(2)
, Article 105972. 10.1016/j.isci.2023.105972.
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Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has evolved to variants associated with milder disease. We employed the k18-hACE2 mouse model to study how differences in the course of infection by SARS-CoV-2 variants alpha, delta, and omicron relate to tissue pathology and the immune response triggered. We documented a variant-specific pattern of infection severity, inducing discrete lung and blood immune responses and differentially impacting primary lymphoid organs. Infections with variants alpha and delta promoted bone marrow (BM) emergency myelopoiesis, with blood and lung neutrophilia. The defects in the BM hematopoietic compartment extended to the thymus, with the infection by the alpha variant provoking a marked thymic atrophy. Importantly, the changes in the immune responses correlated with the severity of infection. Our study provides a comprehensive platform to investigate the modulation of disease by SARS-CoV-2 variants and underscores the impact of this infection on the function of primary lymphoid organs.
| Type: | Article |
|---|---|
| Title: | SARS-CoV-2 variants induce distinct disease and impact in the bone marrow and thymus of mice |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.isci.2023.105972 |
| Publisher version: | https://doi.org/10.1016/j.isci.2023.105972 |
| Language: | English |
| Additional information: | ©2023 The Author(s). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| Keywords: | Pathology, Immunology, Components of the immune system, Virology |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Infection and Immunity |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10217917 |
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