In liver cancer, autoantibodies frequency to three TAAs were 25.0% (19/76), 5.3% (4/76) and 0% (0/76), 5.3% (4/76), 0% (0/76) and 0% (0/76) were shown to have autoantibody to PARP1 and BRCA1, PARP1 and BRCA2, or BRCA1 and BRCA2, respectively. Here, PARP1 is linked to liver cancer.