Gene expression profiles of Protein tyrosine phosphatase non-receptor 22, Tumor necrosis factor receptor-associated factor 1 and Interleukin-1 beta in patients with rheumatoid arthritis and healthy controls after severe acute respiratory syndrome-ass

In this study, TRAF-1 was significantly downregulated, but IL-1β was upregulated in patients with RA post either COVID-19 infection or vaccination, while PTPN22 showed a non-significant reduction. The study findings suggest that triggered immune response post SARS-CoV-2 exposure, through infection or vaccination, may influence molecular pathways involved in RA pathogenesis.