COL4A1 and hepatocellular carcinoma: In the Wurmbach liver (GSE6764), COL4A1 was increased in cirrhosis (fold change =2.997, p = 7.24E-6), liver cell dysplasia (fold change =2.140, p = 7.46E-6), and HCC (fold change =3.711, p = 1.16E-10).