C4A and hepatocellular carcinoma: Brain acid-soluble protein 1 (BASP1), calpain-1 catalytic subunit (CAPN1), complementary C4-A (C4A), and polyadenylate-binding protein 1 (PABPC1) fell in the healthy control versus the before HCC treatment group and in the before HCC treatment versus after HCC treatment group.