Unsupervised hierarchical clustering analysis results. The cluster analysis shows the presence of two different clusters composed respectively by 247 down-regulated genes (Cluster A) and 656 up-regulated transcripts (Cluster B). Each row represents a differentially expressed genes. In green the genes down-regulated, in red the genes up-regulated for each replicate. In grey and black are represented respectively the genes not modulated or with missing data for the given replicate. Each column represents an experimental condition, labelled as the specific KS patient vs. control. The columns labelled with the same name stand for the two performed replicate as dye-swap.