Fig 1: Meta-analysis of significant metastatic upregulated proteins in acid exosomes through Prognoscan. a Kaplan-Meyer curves depicting the Overall Survival of metastatic melanoma patients with high (red lines) or low (green lines) expression of the genes listed in Table 1 that resulted statistically significant. Mentel-Cox p-values for each plot are showed. b Western blotting analysis of ctr and pH 6.0 exosomes (20 µg). Cell lysate was used as positive control. Expression of CFL, GSN and HSP90aß is shown. Ponceau red is shown for equal exosome protein amount. c confocal immunofluorescence analysis with the indicated antibodies on primary (apical and mid region), and metastatic melanoma biopsies from the same patient. Ki67 labeling was used as internal control. Red, CFL, GSN, HYOU1; blue, DAPI; green, Ki67. Bar 50 µm