In terms of TLR7 in monocyte-related cells and their relation to SLE, monocyte-derived DCs, especially CD14+ cells, and their stimulation via TLR7 were reported to be involved in the induction of follicular helper T cells (Tfh), which are important for the differentiation of autoantibody-producing B cells (11). Here, TLR7 is linked to systemic lupus erythematosus.