Two-dimensional western analysis of the chaperones Hsp70, Hsp27, and Hsp60. (a) shows the result of the immunoblots with positive signals for the respective specific antibodies given in each line and the MS identified protein spots indicated by grey arrow heads. For immunodetection of all relevant spots, pooled samples were used in order to represent all relevant isoforms and modifications. (b, c) show the identical regions in the DIGE gels, where the middle panel shows the protein separation of total cell extracts from mesothelial cells following exposure to H-PDF, and (c) shows the protein separation of total cell extracts from mesothelial cells following exposure to F-PDF. Again the MS identified protein spots are indicated by grey arrow heads.