{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"CD138/Syndecan-1 is a transmembrane heparin-sulphate proteoglycan consisting of one core protein and five glycosaminoglycans. CD138 is suspected to play a role in cell adhesion. It is expressed on the surface of pre B-cells and plasma cells but is absent from mature B-cells.\n Anti-CD138/syndecan-1 is a useful marker for labeling normal and neoplastic plasma cells and Plasmacytoid Lymphomas. It is a selective marker for B-cell Lymphoblastic Leukemia and Lymphoplasmocytoid Leukemia. It is lost from the apoptotic myeloma cells, and thus, is a useful marker for viable Myeloma cells. Various forms of Hodgkin’s Disease have also shown positive staining with this antibody."}]}]}