PROM1 and hepatocellular carcinoma: To further explore the correlation of GPR87 and CD133 expression, we established stable CD133 overexpressing cell lines, SMMC-7721-lenti-CD133, HCC-LY5-lenti-CD133 and MHCC-97L-lenti-CD133, using a lentivirus vector, then examined GPR87 expression.