eLife (Jul 2023)

SARS-CoV-2 uses CD4 to infect T helper lymphocytes

  • Natalia S Brunetti,
  • Gustavo G Davanzo,
  • Diogo de Moraes,
  • Allan JR Ferrari,
  • Gabriela F Souza,
  • Stéfanie Primon Muraro,
  • Thiago L Knittel,
  • Vinicius O Boldrini,
  • Lauar B Monteiro,
  • João Victor Virgílio-da-Silva,
  • Gerson S Profeta,
  • Natália S Wassano,
  • Luana Nunes Santos,
  • Victor C Carregari,
  • Artur HS Dias,
  • Flavio P Veras,
  • Lucas A Tavares,
  • Julia Forato,
  • Icaro MS Castro,
  • Lícia C Silva-Costa,
  • André C Palma,
  • Eli Mansour,
  • Raisa G Ulaf,
  • Ana F Bernardes,
  • Thyago A Nunes,
  • Luciana C Ribeiro,
  • Marcus V Agrela,
  • Maria Luiza Moretti,
  • Lucas I Buscaratti,
  • Fernanda Crunfli,
  • Raissa G Ludwig,
  • Jaqueline A Gerhardt,
  • Natália Munhoz-Alves,
  • Ana Maria Marques,
  • Renata Sesti-Costa,
  • Mariene R Amorim,
  • Daniel A Toledo-Teixeira,
  • Pierina Lorencini Parise,
  • Matheus Cavalheiro Martini,
  • Karina Bispos-dos-Santos,
  • Camila L Simeoni,
  • Fabiana Granja,
  • Virgínia C Silvestrini,
  • Eduardo B de Oliveira,
  • Vitor M Faca,
  • Murilo Carvalho,
  • Bianca G Castelucci,
  • Alexandre B Pereira,
  • Laís D Coimbra,
  • Marieli MG Dias,
  • Patricia B Rodrigues,
  • Arilson Bernardo SP Gomes,
  • Fabricio B Pereira,
  • Leonilda MB Santos,
  • Louis-Marie Bloyet,
  • Spencer Stumpf,
  • Marjorie C Pontelli,
  • Sean Whelan,
  • Andrei C Sposito,
  • Robson F Carvalho,
  • André S Vieira,
  • Marco AR Vinolo,
  • André Damasio,
  • Licio Velloso,
  • Ana Carolina M Figueira,
  • Luis LP da Silva,
  • Thiago Mattar Cunha,
  • Helder I Nakaya,
  • Henrique Marques-Souza,
  • Rafael E Marques,
  • Daniel Martins-de-Souza,
  • Munir S Skaf,
  • Jose Luiz Proenca-Modena,
  • Pedro MM Moraes-Vieira,
  • Marcelo A Mori,
  • Alessandro S Farias

DOI
https://doi.org/10.7554/eLife.84790
Journal volume & issue
Vol. 12

Abstract

Read online

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the agent of a major global outbreak of respiratory tract disease known as Coronavirus Disease 2019 (COVID-19). SARS-CoV-2 infects mainly lungs and may cause several immune-related complications, such as lymphocytopenia and cytokine storm, which are associated with the severity of the disease and predict mortality. The mechanism by which SARS-CoV-2 infection may result in immune system dysfunction is still not fully understood. Here, we show that SARS-CoV-2 infects human CD4+ T helper cells, but not CD8+ T cells, and is present in blood and bronchoalveolar lavage T helper cells of severe COVID-19 patients. We demonstrated that SARS-CoV-2 spike glycoprotein (S) directly binds to the CD4 molecule, which in turn mediates the entry of SARS- CoV-2 in T helper cells. This leads to impaired CD4 T cell function and may cause cell death. SARS-CoV-2-infected T helper cells express higher levels of IL-10, which is associated with viral persistence and disease severity. Thus, CD4-mediated SARS-CoV-2 infection of T helper cells may contribute to a poor immune response in COVID-19 patients.

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