Nature Communications (Apr 2022)

Distinct molecular and immune hallmarks of inflammatory arthritis induced by immune checkpoint inhibitors for cancer therapy

  • Sang T. Kim,
  • Yanshuo Chu,
  • Mercy Misoi,
  • Maria E. Suarez-Almazor,
  • Jean H. Tayar,
  • Huifang Lu,
  • Maryam Buni,
  • Jordan Kramer,
  • Emma Rodriguez,
  • Zulekha Hussain,
  • Sattva S. Neelapu,
  • Jennifer Wang,
  • Amishi Y. Shah,
  • Nizar M. Tannir,
  • Matthew T. Campbell,
  • Don L. Gibbons,
  • Tina Cascone,
  • Charles Lu,
  • George R. Blumenschein,
  • Mehmet Altan,
  • Bora Lim,
  • Vincente Valero,
  • Monica E. Loghin,
  • Janet Tu,
  • Shannon N. Westin,
  • Aung Naing,
  • Guillermo Garcia-Manero,
  • Noha Abdel-Wahab,
  • Hussein A. Tawbi,
  • Patrick Hwu,
  • Isabella C. Glitza Oliva,
  • Michael A. Davies,
  • Sapna P. Patel,
  • Jun Zou,
  • Andrew Futreal,
  • Adi Diab,
  • Linghua Wang,
  • Roza Nurieva

DOI
https://doi.org/10.1038/s41467-022-29539-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 19

Abstract

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Abstract Immune checkpoint inhibitors are associated with immune-related adverse events (irAEs), including arthritis (arthritis-irAE). Management of arthritis-irAE is challenging because immunomodulatory therapy for arthritis should not impede antitumor immunity. Understanding of the mechanisms of arthritis-irAE is critical to overcome this challenge, but the pathophysiology remains unknown. Here, we comprehensively analyze peripheral blood and/or synovial fluid samples from 20 patients with arthritis-irAE, and unmask a prominent Th1-CD8+ T cell axis in both blood and inflamed joints. CX3CR1hi CD8+ T cells in blood and CXCR3hi CD8+ T cells in synovial fluid, the most clonally expanded T cells, significantly share TCR repertoires. The migration of blood CX3CR1hi CD8+ T cells into joints is possibly mediated by CXCL9/10/11/16 expressed by myeloid cells. Furthermore, arthritis after combined CTLA-4 and PD-1 inhibitor therapy preferentially has enhanced Th17 and transient Th1/Th17 cell signatures. Our data provide insights into the mechanisms, predictive biomarkers, and therapeutic targets for arthritis-irAE.