Autoreactivity vs autoimmunity: characteristics of autoantigen-specific CD4 T-cells in rheumatoid arthritis and health. - Summary - MDSpire

Distinguishing Autoreactivity from Autoimmunity: Features of CD4 T-cells Specific to Autoantigens in Rheumatoid Arthritis and Healthy Individuals.

  • By

  • James A. Stanway

  • Daniel Peters

  • Helen Waller

  • Jeremy Lakey

  • Henrique De Paula Lemos

  • Kristian Williams

  • Abbie Degnan

  • Julie Diboll

  • Abdul Mannan Baru

  • David Tough

  • Arthur G. Pratt

  • Catharien M.U. Hilkens

  • Amy E. Anderson

  • John D. Isaacs

  • June 1, 2026

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Objective:

To characterize CD4 T cells specific for citrullinated peptides in rheumatoid arthritis (RA) and healthy controls (HCs) to understand autoreactivity and its implications for disease mechanisms.

Approach:
  • Study Design: Assessment of cit-peptide specific CD4 T cells from HLA-DRB1 04:01 positive healthy controls, RA patients at different disease stages, and at-risk individuals using MHC II-peptide tetramers and spectral flow cytometry.
Key Findings:
  • No statistically significant difference in autoreactive T cell frequency between healthy controls and RA patients was observed.
  • The study emphasized the focus on the memory CD4 T cell compartment.
Interpretation:

Limitations:
  • Sample size may limit generalizability.
  • Study focused on specific HLA-DRB1 genotype.
Conclusion:

Sources:

Original Source(s)

Autoreactivity vs autoimmunity: characteristics of autoantigen-specific CD4 T-cells in rheumatoid arthritis and health.

  • by James A. Stanway, Daniel Peters, Helen Waller, Jeremy Lakey, Henrique De Paula Lemos, Kristian Williams, Abbie Degnan, Julie Diboll, Abdul Mannan Baru, David Tough, Arthur G. Pratt, Catharien M.U. Hilkens, Amy E. Anderson, John D. Isaacs

  • June 1, 2026

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