The table profiles serum concentrations of all identified differentially expressed biomarkers in sarcoidosis and scleroderma, classified according to their predominant immune function. Th: T helper cell; IL: interleukin; TNF: tumour necrosis factor; IP: interferon-inducible protein; MIG: monokine induced by interferon-γ; MIP: macrophage inflammatory protein; RANTES: regulated on activation, normal T cell expressed and secreted; MCP: monocyte chemotactic protein; HGF: hepatocyte growth factor; EGF: epidermal growth factor; DR: death receptor. +: median serum concentration was significantly higher than the healthy control population. ++: median serum concentration was significantly higher than the healthy control population and the other disease group; ^#: in untreated patients only.