Human hepatocellular carcinoma: Cross‐reactive and idiotypic antigens associated with malignant transformation of epithelial cells
Karl H. Wiedmann, Ludwik K. Trejdosiewicz, Jennifer Southgate, Howard C. Thomas – 1 May 1987 – Monoclonal antibodies were isolated following immunization with the HBsAg and α‐fetoprotein‐secreting human hepatoma PLC/PRF/5 (“Alexander”) cell line. Three antibodies (K‐PLC1, K‐PLC2 and K‐PLC3) showed evidence of carcinoma‐associated reactivity by indirect immunofluorescence. Antibodies K‐PLC2 and K‐PLC3 reacted only with PLC/PRF/5 cells, but not with any other normal or malignant cell type tested, including the Hep/G2 hepatoma cell line.