SOAT1 and lobular neoplasia: Although several studies indicated that LAIR1 could transduct the inhibitory signals through recruiting PTPN11 to inhibit the JAK/STAT signaling pathway in leukocytes,11, 12 the LAIR1 and PTPN11‐regulated signaling pathway and the inhibitory function of LAIR1 in mesangial cells of JSLE‐LN are still not well investigated.