To assess renal inflammatory cell infiltration in pristane-induced SLE mice, we measured the expression of Cd45, Cd3, Cd19, Cd4, and Cd8, which indicate immune cell, T cell, B cell, Th cell, and CTL infiltration, respectively, using quantitative real-time PCR (qPCR). This evidence concerns the gene CD4 and systemic lupus erythematosus.