Single-cell T cell receptor sequencing of paired human atherosclerotic plaques and blood reveals autoimmune-like features of expanded effector T cells

Marie A. C. Depuydt, Frank H. Schaftenaar, Koen H. M. Prange, Arjan Boltjes, Esmeralda Hemme, Lucie Delfos, Jill de Mol, Maaike J. M. de Jong, Mireia N. A. Bernabé Kleijn, Judith A. H. M. Peeters, Lauren Goncalves, Anouk Wezel, Harm J. Smeets, Gert J. de Borst, Amanda C. Foks, Gerard Pasterkamp, Menno P. J. de Winther, Johan Kuiper, Ilze Bot, Bram Slütter

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22 Citations (Scopus)

Abstract

Atherosclerosis is a lipid-driven chronic inflammatory disease; however, whether it can be classified as an autoimmune disease remains unclear. In this study, we applied single-cell T cell receptor seqencing (scTCR-seq) on human carotid artery plaques and matched peripheral blood mononuclear cell samples to assess the extent of TCR clonality and antigen-specific activation within the various T cell subsets. We observed the highest degree of plaque-specific clonal expansion in effector CD4+ T cells, and these clonally expanded T cells expressed genes such as CD69, FOS and FOSB, indicative of recent TCR engagement, suggesting antigen-specific stimulation. CellChat analysis suggested multiple potential interactions of these effector CD4+ T cells with foam cells. Finally, we integrated a published scTCR-seq dataset of the autoimmune disease psoriatic arthritis, and we report various commonalities between the two diseases. In conclusion, our data suggest that atherosclerosis has an autoimmune compondent driven by autoreactive CD4+ T cells.
Original languageEnglish
Pages (from-to)112-125
Number of pages14
JournalNature cardiovascular research
Volume2
Issue number2
DOIs
Publication statusPublished - 1 Feb 2023

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