Cluster and heat map analysis with genes of altered methylation for five cancers.

<p>A. Cluster analysis was carried out using a methylation index (β-value) taken from Illumina Human Methylation 27 Bead Chip database registered at the GEO. Hierarchical clustering with the correlation distance was shown for 50 tumor tissues from the breast, colon, liver, lung, and stomach cancer. B. Hierarchical cluster analysis was conducted for 90 genes that were related with “cancer” from the five cancer types. The bottom panel is a heat map analysis wherein the rows and columns represent genes and cancer cell lines, respectively.