Meanwhile, the proportion of CD19− cells, mainly T cells, in SLE lymphocytes was decreased (91.88±0.5938% versus 85.05±2.618%) and the percentage of dead CD19− cells in total CD19− cells was increased (11.10±0.8412% versus 16.20±2.103% Figure 1d). This evidence concerns the gene CD19 and systemic lupus erythematosus.