Single RNA-Seq of synovial tissue macrophages from Rheumatoid Arthritis patients with active disease and in disease remission.

Treatment refractory Rheumatoid Arthritis (RA) is a major clinical challenge. Drug-free remission is uncommon but provides proof-of-concept that articular immune-homeostasis can be reinstated. In this project, we used single-cell RNA- to study the role of synovial tissue macrophages in maintaining disease remission. We have sequenced synovial tissue macrophages from individuals with healthy synovium (as evaluated by MRI), patients with undifferentiated arthritis (UPA), RA patients naïve to treatment, RA patients resistant to treatment and RA patients in disease remission