Relation of P-gp+CD69+CD4+ cells with outcome of intensive immunosuppressive therapy in patients with active proliferative lupus nephritis (LN). Relation of P-gp+CD69+CD4+ cells with outcome of intensive immunosuppressive therapy in patients with active proliferative lupus nephritis (LN). Proportion of P-gp+CD69+CD4+ cells in 12 low responders with highly active proliferative LN, including those who showed improvement and severe flare; before and after the administration of immunosuppressive therapies listed in table 2. Comparison of proportion of P-gp+CD69+CD4+ cells before and after immunosuppressive therapy in each group. Data are mean±SD. Paired t-test. Shizuyo Tsujimura et al. RMD Open 2017;3:e000423 Copyright © BMJ Publishing Group & EULAR. All rights reserved.