Human circulating CD24hi marginal zone B cells produce IgM targeting atherogenic antigens and confer protection from vascular disease

Tanyaporn Pattarabanjird, Anh Tram Nguyen, Chantel McSkimming, Huy Q. Dinh, Melissa A. Marshall, Yanal Ghosheh, Rishab Gulati, Chistopher Durant, Jenifer Vallejo, Ryosuke Saigusa, Fabrizio Drago, Thomas V. Guy, Katherine Premo, Angela M. Taylor, Soumen Paul, Bijoy Kundu, Stuart Berr, Ayelet Gonen, Sotirios Tsimikas, Yury MillerShiv Pillai, Klaus Ley, Catherine C. Hedrick, Coleen A. McNamara

Research output: Contribution to journalArticlepeer-review

Abstract

IgMs that inactivate oxidation-specific epitopes (IgMOSE), which are secondary products of lipid peroxidization, protect against inflammatory diseases, including diet-induced atherosclerosis. However, the human B cell subtype that produces IgMOSE remains unknown. In this study, we used single-cell mass cytometry and adoptive transfer of B cell subtypes to NOD.Cg-Prkdc scid Il2rg tm1Wjl/SzJ (NSG) mice to identify B27+IgM+CD24hi cells as the major producers of IgMOSE in humans. Notably, these cells have characteristics of human circulatory marginal zone B (MZB) cells, which are known to be atheoroprotective IgM producers in mice. CD24 antibody treatment to reduce MZB cells and IgM in a hyperlipidemic humanized mouse model provides the evidence that MZB cells protect against vascular inflammation. Consistent with these findings, the frequency of B27+IgM+CD24hi cells (MZB) in patients inversely correlates with coronary artery disease severity.

Original languageEnglish (US)
Pages (from-to)1003-1014
Number of pages12
JournalNature Cardiovascular Research
Volume2
Issue number11
DOIs
StatePublished - Nov 2023
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Cell Biology
  • Medicine (miscellaneous)
  • Cardiology and Cardiovascular Medicine

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