Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients

Objective: The aim of this prospective cohort study is to analyse the humoral and cellular vaccine responses in paediatric heart transplant recipients (HTR, n = 12), and compare it with the response in healthy controls (HC, n = 14). All participants were 5–18 years old and vaccinated with mRNA vacci...

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Main Authors: Amanda Bermejo-Gómez, Laura Tarancon-Diez, Beatriz Lazaro-Martin, Begoña Santiago-Garcia, Nuria Gil Villanueva, Roberto Alonso, Mª Ángeles Muñoz-Fernández, Manuela Camino López, Alicia Hernanz-Lobo, María Luisa Navarro Gómez
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Heliyon
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Online Access:http://www.sciencedirect.com/science/article/pii/S2405844024176153
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author Amanda Bermejo-Gómez
Laura Tarancon-Diez
Beatriz Lazaro-Martin
Begoña Santiago-Garcia
Nuria Gil Villanueva
Roberto Alonso
Mª Ángeles Muñoz-Fernández
Manuela Camino López
Alicia Hernanz-Lobo
María Luisa Navarro Gómez
author_facet Amanda Bermejo-Gómez
Laura Tarancon-Diez
Beatriz Lazaro-Martin
Begoña Santiago-Garcia
Nuria Gil Villanueva
Roberto Alonso
Mª Ángeles Muñoz-Fernández
Manuela Camino López
Alicia Hernanz-Lobo
María Luisa Navarro Gómez
author_sort Amanda Bermejo-Gómez
collection DOAJ
description Objective: The aim of this prospective cohort study is to analyse the humoral and cellular vaccine responses in paediatric heart transplant recipients (HTR, n = 12), and compare it with the response in healthy controls (HC, n = 14). All participants were 5–18 years old and vaccinated with mRNA vaccine against SARS-CoV-2 between December 2021 and May 2022. Methods: The humoral response was measured by quantifying antibody titers against SARS-CoV-2 spike protein (anti-S). The T-lymphocyte phenotype and SARS-CoV2-specific CD4+ and CD8+ T-cell response was studied by multiparametric flow cytometry through peripheral blood mononuclear cells by the quantification of degranulation markers (CD107a) and intracellular cytokines (IFN-γ, TNF-α and IL-2) after in vitro stimulation with SARS-CoV-2 peptides from structural proteins (S, M, N, E) and non-structural viral proteins. Results: After vaccination, humoral response was found in all HTR, although they showed lower levels of anti-S IgG compared to HC (p = 0.003). However, in terms of cellular response, no significant differences were obtained in the prevalence of responders and magnitude of responses between groups. In addition, anti-S IgG levels directly correlated with a higher SARS-CoV-2 specific T-cell response (rho = 0.43; p = 0.027 and rho = 0.45; p = 0.02 for IFN-γ+ and TNF-α+ production of CD8+ T-cells, respectively). Activated T-cell phenotype in HTR was associated with a lower humoral response to SARS-CoV-2 vaccine. Conclusion: HTR had humoral response after vaccination, although they showed lower levels of specific anti-S antibodies compared to HC. There were no significant differences in the SARS-CoV2-specific cellular response between the two groups. Obtaining satisfactory data on this type of response could potentially challenge the current vaccine guideline recommendations.
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spelling doaj-art-aa8e7ba2341a4143aaa34cd913a36b842025-08-20T02:59:38ZengElsevierHeliyon2405-84402025-01-01111e4158410.1016/j.heliyon.2024.e41584Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipientsAmanda Bermejo-Gómez0Laura Tarancon-Diez1Beatriz Lazaro-Martin2Begoña Santiago-Garcia3Nuria Gil Villanueva4Roberto Alonso5Mª Ángeles Muñoz-Fernández6Manuela Camino López7Alicia Hernanz-Lobo8María Luisa Navarro Gómez9Pediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain; Gregorio Marañón Research Health Institute (IiSGM), Madrid, SpainPediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain; Gregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Biomedical Research Centre Network for Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, SpainPediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain; Gregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Biomedical Research Centre Network for Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, SpainPediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain; Gregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Biomedical Research Centre Network for Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, SpainPediatric Cardiology Department, Gregorio Marañón Hospital, Madrid, SpainGregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Clinical Microbiology and Infectious Diseases Department, Gregorio Marañón University Hospital, Madrid, Spain; Complutense University, Madrid, SpainGregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Molecular Immunology Laboratory, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III (ISCIII), Madrid, SpainPediatric Cardiology Department, Gregorio Marañón Hospital, Madrid, SpainPediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain; Gregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Biomedical Research Centre Network for Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, SpainPediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain; Gregorio Marañón Research Health Institute (IiSGM), Madrid, Spain; Biomedical Research Centre Network for Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, Spain; Complutense University, Madrid, Spain; Corresponding author. Pediatric Infectious Diseases Unit, Department of Pediatrics, Gregorio Marañón University Hospital, Madrid, Spain.Objective: The aim of this prospective cohort study is to analyse the humoral and cellular vaccine responses in paediatric heart transplant recipients (HTR, n = 12), and compare it with the response in healthy controls (HC, n = 14). All participants were 5–18 years old and vaccinated with mRNA vaccine against SARS-CoV-2 between December 2021 and May 2022. Methods: The humoral response was measured by quantifying antibody titers against SARS-CoV-2 spike protein (anti-S). The T-lymphocyte phenotype and SARS-CoV2-specific CD4+ and CD8+ T-cell response was studied by multiparametric flow cytometry through peripheral blood mononuclear cells by the quantification of degranulation markers (CD107a) and intracellular cytokines (IFN-γ, TNF-α and IL-2) after in vitro stimulation with SARS-CoV-2 peptides from structural proteins (S, M, N, E) and non-structural viral proteins. Results: After vaccination, humoral response was found in all HTR, although they showed lower levels of anti-S IgG compared to HC (p = 0.003). However, in terms of cellular response, no significant differences were obtained in the prevalence of responders and magnitude of responses between groups. In addition, anti-S IgG levels directly correlated with a higher SARS-CoV-2 specific T-cell response (rho = 0.43; p = 0.027 and rho = 0.45; p = 0.02 for IFN-γ+ and TNF-α+ production of CD8+ T-cells, respectively). Activated T-cell phenotype in HTR was associated with a lower humoral response to SARS-CoV-2 vaccine. Conclusion: HTR had humoral response after vaccination, although they showed lower levels of specific anti-S antibodies compared to HC. There were no significant differences in the SARS-CoV2-specific cellular response between the two groups. Obtaining satisfactory data on this type of response could potentially challenge the current vaccine guideline recommendations.http://www.sciencedirect.com/science/article/pii/S2405844024176153SARS-CoV-2VaccinesPaediatricImmunocompromisedHeart transplant recipientsCOVID-19
spellingShingle Amanda Bermejo-Gómez
Laura Tarancon-Diez
Beatriz Lazaro-Martin
Begoña Santiago-Garcia
Nuria Gil Villanueva
Roberto Alonso
Mª Ángeles Muñoz-Fernández
Manuela Camino López
Alicia Hernanz-Lobo
María Luisa Navarro Gómez
Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients
Heliyon
SARS-CoV-2
Vaccines
Paediatric
Immunocompromised
Heart transplant recipients
COVID-19
title Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients
title_full Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients
title_fullStr Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients
title_full_unstemmed Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients
title_short Humoral and cellular response to SARS-CoV-2 mRNA vaccine in paediatric heart transplant recipients
title_sort humoral and cellular response to sars cov 2 mrna vaccine in paediatric heart transplant recipients
topic SARS-CoV-2
Vaccines
Paediatric
Immunocompromised
Heart transplant recipients
COVID-19
url http://www.sciencedirect.com/science/article/pii/S2405844024176153
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