Figure 4. Heat map of differentially expressed genes in HTFs after CTGF stimulation. Differentially expressed genes were analyzed and categorized via “gene ontology.” The selected categories (A) “response to wounding and inflammatory response,” (B) “extracellular matrix,” (C) “anti-apoptosis,” and (D) “cell proliferation” are shown. Color represent measured signal intensity from lowest (green) to highest (red) value.