ITGA2B and autoimmune thrombocytopenic purpura: Glycoprotein (GP) specific autoantibodies (e.g., GPVI, GPIb/IX, GPIIb/IIIa autoantibodies) can be detected in most ITP patients’ plasma or platelet eluates by modified monoclonal antibody immobilization of platelet antigen (MAIPA) assay, which bind to the specific glycoproteins by an antigen-binding fragment (Fab) and then activate the mononuclear-macrophage or complement system [2, 3].