Nature Communications (Jan 2023)

Cytotoxic CD8+ T cells target citrullinated antigens in rheumatoid arthritis

  • Jae-Seung Moon,
  • Shady Younis,
  • Nitya S. Ramadoss,
  • Radhika Iyer,
  • Khushboo Sheth,
  • Orr Sharpe,
  • Navin L. Rao,
  • Stephane Becart,
  • Julie A. Carman,
  • Eddie A. James,
  • Jane H. Buckner,
  • Kevin D. Deane,
  • V. Michael Holers,
  • Susan M. Goodman,
  • Laura T. Donlin,
  • Mark M. Davis,
  • William H. Robinson

DOI
https://doi.org/10.1038/s41467-022-35264-8
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 15

Abstract

Read online

The immune mechanisms underlying synovitis and joint tissue destruction in rheumatoid arthritis (RA) remain incompletely defined. Here, the authors demonstrate that ACPA+ RA patients have activated clonally expanded cytotoxic GZMB+ CD8+ T cells in blood and synovium that target and are activated by citrullinated antigens to mediate cell killing.