Wrigley Kelly, Neil E., Kenny, Grace, Cassidy, Féaron C., Garcia‐Leon, Alejandro A., De Barra, Conor, Mallon, Patrick W. G., Hogan, Andrew E. and O'Shea, Donal (2022) Individuals with obesity who survive SARS‐CoV‐2 infection have preserved antigen‐specific T cell frequencies. Obesity, 30 (10). pp. 1927-1931. ISSN 1930-7381
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Abstract
Objective: Obesity is a major risk factor for severe disease in COVID-19, with
increased hospitalization, intensive care unit admission, and mortality. This increased
impact of COVID-19 in people with obesity (PWO) is likely driven, in part, by the
well-described obesity-induced immune dysregulation. Obesity has also been associated with impaired immune memory in many settings, including weakened responses
to hepatitis B, tetanus, rabies, and influenza vaccination. Recently, it was reported
that PWO who have COVID-19 have reduced IgG antibody titers with defective neutralizing capabilities. However, it remains unknown whether PWO generate durable
T cell immunity to SARS-CoV-2.
Methods: This study investigated SARS-CoV-2-specific T cell responses in a cohort
of 40 patients (n = 20 PWO and n = 20 matched control individuals) who had recovered from COVID-19. T cell (CD4+, CD8+) cytokine responses (IFNγ, TNFα) to
SARS-CoV-2 peptide pools (spike, membrane) were determined using multicolor flow
cytometry.
Results: Circulating T cells specific for SARS-CoV-2 were readily detected in the total
cohort. PWO displayed comparable levels of SARS-CoV-2 spike- and membrane-specific T cells, with both T cell subsets responding.
Conclusions: These data indicate that PWO who survive COVID-19 generate robust
and durable SARS-CoV-2-specific T cell immunity that is equivalent to that seen in
those without obesity.
Item Type: | Article |
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Keywords: | Individuals; obesity; survive; SARS-CoV-2 infection; preserved; antigen-specific; T cell; frequencies; |
Academic Unit: | Faculty of Science and Engineering > Research Institutes > Human Health Institute Faculty of Science and Engineering > Biology |
Item ID: | 18043 |
Identification Number: | 10.1002/oby.23526 |
Depositing User: | Andrew Hogan |
Date Deposited: | 16 Jan 2024 15:51 |
Journal or Publication Title: | Obesity |
Publisher: | Wiley |
Refereed: | Yes |
Related URLs: | |
URI: | https://mural.maynoothuniversity.ie/id/eprint/18043 |
Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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