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Type I Interferon Autoantibodies Correlate With Cellular Immune Alterations in Severe COVID-19

  • The Karolinska KI/K COVID-19 Study Group
  • , Benedikt Strunz
  • , Christopher Maucourant
  • , Adi Mehta
  • , Hui Wan
  • , Likun Du
  • , Dan Sun
  • , Puran Chen
  • , Anna Nordlander
  • , Yu Gao
  • , Martin Cornillet
  • , Jonna Bister
  • , Egle Kvedaraite
  • , Wanda Christ
  • , Jonas Klingström
  • , Daniel Geanon
  • , Åsa Parke
  • , Anna Ekwall-Larson
  • , Laura Rivino
  • , Paul A MacAry
  • Soo Aleman, Marcus Buggert, Hans-Gustaf Ljunggren, Qiang Pan-Hammarström, Fridtjof Lund-Johansen, Kristoffer Strålin, Niklas K Björkström*
*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

5 Citations (Scopus)

Abstract

Background:
Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can lead to severe disease with increased morbidity and mortality among certain risk groups. The presence of autoantibodies against type I interferons (aIFN-Abs) is one mechanism that contributes to severe coronavirus disease 2019 (COVID-19).

Methods:
This study aimed to investigate the presence of aIFN-Abs in relation to the soluble proteome, circulating immune cell numbers, and cellular phenotypes, as well as development of adaptive immunity.

Results:
aIFN-Abs were more prevalent in critical compared to severe COVID-19 but largely absent in the other viral and bacterial infections studied here. The antibody and T-cell response to SARS-CoV-2 remained largely unaffected by the presence aIFN-Abs. Similarly, the inflammatory response in COVID-19 was comparable in individuals with and without aIFN-Abs. Instead, presence of aIFN-Abs had an impact on cellular immune system composition and skewing of cellular immune pathways.

Conclusions:
Our data suggest that aIFN-Abs do not significantly influence development of adaptive immunity but covary with alterations in immune cell numbers.
Original languageEnglish
Article numberjiae036
Pages (from-to)e318-e326
Number of pages10
JournalThe Journal of infectious diseases
Volume230
Issue number2
Early online date29 Feb 2024
DOIs
Publication statusPublished - 15 Aug 2024

Bibliographical note

Publisher Copyright:
© The Author(s) 2024. Published by Oxford University Press on behalf of Infectious Diseases Society of America.

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