METTL1 and systemic lupus erythematosus: Furthermore, METTL1 expression is negatively correlated with aberrant immune pathways, including the Notch signalling pathway, Fc receptor‐mediated phagocytosis, the MAPK pathway and the Toll‐like receptor signalling pathway, which are reportedly to be involved in SLE by regulating immune cells or inflammatory cytokines.65, 111, 112, 113, 114