CAV1 and IgA glomerulonephritis: In addition to this evidence, our exploratory IHC analysis on a small series of active ABMR and c-ABMR with other superimposed injury (e.g., mixed c-ABMR and TCMR, mixed c-ABMR and IgA nephropathy) suggested that Cav-1 could properly identify features of antibody-mediated injury even in these conditions.