LAIR1 and lobular neoplasia: Combined with the increased positive staining of LAIR1 on mesangial cells of glomerulus in the IL‐35p and Tregs‐treated lupus mice (Figures 5C and 5E), and negative association among LAIR1+ glomerulus/kidney area with the parameters of LN (Figure 5E), The urine LAIR1 may become one of novel and potential diagnostic biomarkers for the development of JSLE‐LN.