Markers of T-cell dysfunction and not inflammaging predict the waning of humoral responses to SARS-CoV-2 mRNA booster vaccination in people with HIV

AIDS. 2024 Nov 15;38(14):1987-1990. doi: 10.1097/QAD.0000000000004010. Epub 2024 Oct 31.

Abstract

In this prospective longitudinal study, we evaluated the durability of humoral responses to SARS-CoV-2 mRNA booster vaccination in 93 people with HIV, exploring the possible role of T-cell dysfunction and inflammaging biomarkers in predicting antibody waning. We found that, despite a negligible influence of the inflammaging milieu, low CD4/CD8 ratio and CD4+CD127+ percentage as well as high CD8+CD38+CD45RO+ percentage are associated with faster antibody waning, in turn contributing to our understanding of the determinants of COVID-19 vaccine-elicited immune response in this population.

MeSH terms

  • Adult
  • Antibodies, Viral* / blood
  • Biomarkers / blood
  • CD4-CD8 Ratio
  • COVID-19 Vaccines* / administration & dosage
  • COVID-19 Vaccines* / immunology
  • COVID-19* / immunology
  • COVID-19* / prevention & control
  • Female
  • HIV Infections* / immunology
  • Humans
  • Immunity, Humoral
  • Immunization, Secondary*
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Prospective Studies
  • SARS-CoV-2 / immunology
  • T-Lymphocytes / immunology

Substances

  • COVID-19 Vaccines
  • Antibodies, Viral
  • Biomarkers