PELI1 and systemic lupus erythematosus: Interestingly, PELI1 mRNA levels in SLE patients are negatively correlated with the disease activity (Fig. 8c), and individuals with lower levels of PBMCs PELI1 mRNA are also associated with higher percentage of antibody-producing CD19−CD138+ plasma cells and serum IgG levels among SLE patients (Fig. 8d, e).