Single cell TCR sequence study explores the limitations of TRBV9-depleting therapies in axial spondyloarthritis. Key findings: - Identified a clonally expanded TRBV5-5+ TCR in HLA-B27+ acute anterior uveitis. - Alternative TRBVs may retain pathogenicity and evade anti-TRBV9… https://t.co/Aj8oslsTNX