Fig. 2.

Validation of the array data by real-time polymerase chain reaction of matching cDNA samples for type II activin receptor (AVCR2) mRNA (a) and by enzyme-linked immunosorbent assay for monocyte chemotactic protein-1 (MCP-1) of cell culture supernates from partially matching healthy controls (n = 8), early diffuse cutaneous systemic sclerosis (dcSSc) (n = 9) and late dcSSc (n = 8) patients (p). (b) Individual measures are shown by circles and mean values for each group are shown by horizontal bars.