CD74 deficiency improves cGVH-induced SLE-like pathology in mice. A. Kidney PAS staining and glomerulus and tubulointerstitial scores. B. Kidney IgG and C3 immunoflorescent staining and glomerulus scores. C. Kidney Mac-2, MCP-1, and MHC-II immunostaining. D. ELISA determined serum IL-2, IL-6, IL-17A, and TGF-β levels in both Cd74+/+ and Cd74−/− mice (both on B6 background) at 10 weeks after intraperitoneal transfer of splenocytes from B6 or bm12 mice. The number of mice per group is indicated in each bar. Representative figures in panels A to C are shown to the left. Scale: 50 μm.