Preschool-age children maintain a distinct memory CD4 + T cell and memory B cell response after SARS-CoV-2 infection - CNRS - Centre national de la recherche scientifique
Article Dans Une Revue Science Translational Medicine Année : 2024

Preschool-age children maintain a distinct memory CD4 + T cell and memory B cell response after SARS-CoV-2 infection

1 INEM - UM 111 (UMR 8253 / U1151) - Institut Necker Enfants-Malades
2 Hôpital Beaujon [AP-HP]
3 CHU Henri Mondor [Créteil]
4 UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12
5 IMRB - Institut Mondor de Recherche Biomédicale
6 Découverte de pathogènes – Pathogen discovery
7 CCOIE-OIECC - Centre Collaborateur de l'OIE de Détection et identification chez l’homme des pathogènes animaux émergents et développement d’outils pour leur diagnostic / Collaborating Center for the Detection and identification in humans of emerging animal pathogens and development of tools for their diagnoses
8 GMV-ARN (UMR_3569 / U-Pasteur_2) - Génétique Moléculaire des Virus à ARN - Molecular Genetics of RNA Viruses
9 Physique Statistique et Inférence pour la Biologie
10 NIB - National Institute of Biology [Ljubljana]
11 CMBC - Chimie et modélisation pour la biologie du cancer
12 Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]
13 Hôpital Bicêtre [AP-HP, Le Kremlin-Bicêtre]
14 Université Paris-Saclay
15 Hôpital Jean Verdier [AP-HP]
16 UPCité - Université Paris Cité
17 Hôpital Necker - Enfants Malades [AP-HP]
18 SU - Sorbonne Université
19 Hôpital Trousseau
20 Imagine - U1163 - Imagine - Institut des maladies génétiques (IHU)
21 AP-HP Hôpital universitaire Robert-Debré [Paris]
22 IAME (UMR_S_1137 / U1137) - Infection, Anti-microbiens, Modélisation, Evolution
23 Institut Curie [Paris]
24 PSL - Université Paris Sciences et Lettres
25 MARHEA - Centre de Référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte [CHU-Necker]
26 Hôpital Ambroise Paré [AP-HP]
27 UFR Médecine UPCité - UFR Médecine [Santé] - Université Paris Cité
28 HEGP - Hôpital Européen Georges Pompidou [APHP]
29 UZH - Universität Zürich [Zürich] = University of Zurich
30 Karolinska Institutet [Stockholm]
31 PARCC (UMR_S 970/ U970) - Paris-Centre de Recherche Cardiovasculaire
32 CIC 1418 - CIC - HEGP
33 ENVA - École nationale vétérinaire d'Alfort
34 CAU - Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel
Benoît Manfroi
Mohamed El Behi
Albert Faye
Mathie Lorrot
Anne Blanchard
  • Fonction : Auteur
Claude-Agnès Reynaud
Jean-Claude Weill

Résumé

The development of the human immune system lasts for several years after birth. The impact of this maturation phase on the quality of adaptive immunity and the acquisition of immunological memory after infection at a young age remains incompletely defined. Here, using an antigen-reactive T cell (ARTE) assay and multidimensional flow cytometry, we profiled circulating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)–reactive CD3 + CD4 + CD154 + T cells in children and adults before infection, during infection, and 11 months after infection, stratifying children into separate age groups and adults according to disease severity. During SARS-CoV-2 infection, children younger than 5 years old displayed a lower antiviral CD4 + T cell response, whereas children older than 5 years and adults with mild disease had, quantitatively and phenotypically, comparable virus-reactive CD4 + T cell responses. Adults with severe disease mounted a response characterized by higher frequencies of virus-reactive proinflammatory and cytotoxic T cells. After SARS-CoV-2 infection, preschool-age children not only maintained neutralizing SARS-CoV-2–reactive antibodies postinfection comparable to adults but also had phenotypically distinct memory T cells displaying high inflammatory features and properties associated with migration toward inflamed sites. Moreover, preschool-age children had markedly fewer circulating virus-reactive memory B cells compared with the other cohorts. Collectively, our results reveal unique facets of antiviral immunity in humans at a young age and indicate that the maturation of adaptive responses against SARS-CoV-2 toward an adult-like profile occurs in a progressive manner.
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Dates et versions

hal-04739286 , version 1 (16-10-2024)

Identifiants

Citer

Benoît Manfroi, Bui Thi Cuc, Aurélien Sokal, Alexis Vandenberghe, Sarah Temmam, et al.. Preschool-age children maintain a distinct memory CD4 + T cell and memory B cell response after SARS-CoV-2 infection. Science Translational Medicine, 2024, 16 (765), ⟨10.1126/scitranslmed.adl1997⟩. ⟨hal-04739286⟩
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