TNFSF13B and systemic lupus erythematosus: Innate immune cells like plasmacytoid dendritic cells (pDCs) and myeloid dendritic cells (mDCs) can be activated by these ICs and release various lupus-related cytokines, such as IFN-α and B-cell activating factor (BAFF), and proinflammatory cytokines [2–4], which further promote the activation, proliferation, and survival of T and B cells.