The ability of OBZ to induce DCD was greater than that of RTX for both CD19+ cells as a whole and the B cell subpopulations IgD+CD27− naïve cells and IgD−CD27+ switched memory cells (Fig. 6A; RA, n = 5 and SLE, n = 4). This evidence concerns the gene CD19 and systemic lupus erythematosus.