Fig. 4

Heat map of differentially expressed genes. Lists of differentially expressed genes with a t test p value <0.05 were generated for each cell line. A hierarchical clustering method in Partek Genomics Suite was used to construct both the gene tree and the sample tree. Data are shown in a matrix format: each row represents a single gene, and each column represents a cell line. Red indicates overexpressed genes and blue indicates underexpressed genes (see legend)