Summary

Responses to vaccination and to diseases vary widely across individuals, which may be partly due to baseline immune variations. Identifying such baseline predictors of immune responses and their biological basis is of broad interest, given their potential importance for cancer immunotherapy, disease outcomes, vaccination and infection responses. Here we uncover baseline blood transcriptional signatures predictive of antibody responses to both influenza and yellow fever vaccinations in healthy subjects. These same signatures evaluated at clinical quiescence are correlated with disease activity in patients with systemic lupus erythematosus with plasmablast-associated flares. CITE-seq profiling of 82 surface proteins and transcriptomes of 53,201 single cells from healthy high and low influenza vaccination responders revealed that our signatures reflect the extent of activation in a plasmacytoid dendritic cell–type I IFN–T/B lymphocyte network. Our findings raise the prospect that modulating such immune baseline states may improve vaccine responsiveness and mitigate undesirable autoimmune disease activity.

Overall design

Researchers identified baseline blood transcriptional signatures that predict antibody responses to influenza and yellow fever vaccinations. These signatures, linked to a plasmacytoid dendritic cell–type I IFN–T/B lymphocyte network, also correlate with disease activity in systemic lupus erythematosus. Their findings suggest modulating these immune states could improve vaccine responses and mitigate autoimmune activity.

Contributors

Yuri Kotliarov†, Rachel Sparks†, John S. Tsang✉️

Contact

john.tsang@nih.gov (John S. Tsang)