Inflammatory immune cells are found in the synovial fluid of patients with rheumatoid arthritis (RA). Here the authors use scRNA sequencing of synovial fluid cells from RA patients before and after treatment with adalimumab/tofacitinib and find changes in inflammatory SPP1+ macrophages and explore the function of these cells in mouse models.
- Xuyang Xia
- Chenjia He
- Qibing Xie