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Coronaviruses

Paradoxical Sex-Specific Patterns of Autoantibody Response to SARS-CoV-2 Infection Revealed

Strategic Insights

— 1 min read

Research at the Cedars-Sinai Medical Center has shed light on the complex relationship between coronavirus and autoimmune responses in men and women. The study, published in the Journal of Translational Medicine, found that prior SARS-CoV-2 infection, even in the absence of severe clinical disease, can lead to a broad autoantibody response that exhibits sex-specific patterns of prevalence and antigen selectivity.

Key Takeaways:

  • The study involved 177 participants (65% women, 35% men) with confirmed evidence of prior SARS-CoV-2 infection, as well as 53 pre-pandemic healthy controls (49% women, 51% men).
  • The research observed sex-specific patterns of autoreactivity associated with the presence or absence, as well as timing and clustering of symptoms, following SARS-CoV-2 infection.
  • Women exhibited a more prominent overall autoantibody response following asymptomatic infection, while men showed a more prominent breadth and extent of autoantibody reactivity following at least mildly symptomatic infection.
  • The observed reactivity included distinct antigens with molecular homology with SARS-CoV-2.
  • The study concluded that further understanding of the nature of triggered autoantibody activation among men and women exposed to SARS-CoV-2 will be essential for developing effective interventions against immune-mediated sequelae of COVID-19.
  • Funding for the research was provided by the Cedars-Sinai Medical Center, Erika J. Glazer Family Foundation, F. Widjaja Family Foundation, Leona M. and Harry B. Helmsley Charitable Trust, and the National Institutes of Health.

Statistics:

  • 177 participants (65% women, 35% men) with confirmed evidence of prior SARS-CoV-2 infection
  • 53 pre-pandemic healthy controls (49% women, 51% men)
  • 91 autoantigens previously linked to classic autoimmune diseases
  • 21 reported symptoms experienced within 6 months prior to the blood draw
  • Sex-specific patterns of autoreactivity observed

Sources:

  • Paradoxical sex-specific patterns of autoantibody response to SARS-CoV-2 infection. Journal of Translational Medicine, 2021,19(1):1-13. (http://www.translational-medicine.com/). Publisher: BMC. DOI: 10.1186/s12967-021-03184-8
  • Medical Letter on the CDC & FDA. January 23, 2022; p 195.

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