GPC3 and liver cancer: Materials and Methods: We synthesized variants of two previously published peptides, DHLASLWWGTEL (TJ12P1) and RLNVGGTYFLTTRQ (L5), and evaluated their in vitro binding performance in paired isogenic cell lines, A431(GPC3−) and A431-GPC3+ (G1), as well as the liver cancer cell line HepG2.