THY1 and nephritis: Moreover, the relieved histopathological features of nephritis including urine protein and leukocyte scores, a decreased %CD90+αSMA+ mesangial cells and pro‐inflammatory cytokines, the inactivated JAK/STAT signals and the significant upregulated Tregs in spleen, thymus and peripheral blood were validated in Tregs and IL‐35 overexpression plasmid‐treated lupus mice.