Figure 2From: Methylation screening of the TGFBI promoter in human lung and prostate cancer by methylation-specific PCR Validation of methylation-specific primers using 293T and H522 as positive controls and NHBE and HMEC as negative controls. U1/U2 is used for amplification of unmethylated DNA. M3/M4 is used as a TGFBI template control for enrichment of both methylated and unmethylated DNA templates.Back to article page