CSF3 and systemic lupus erythematosus: Although the role of G‐CSF in SLE is still unclear, it is implicated in a number of pathogenic processes commonly seen in lupus including expansion and activation of neutrophils, mobilization of BM stem cells, and expansion of myeloid effector cells via extramedullary hematopoiesis, activation and maturation of dendritic cells (DCs), and skewing of T cell responses.