Figure 5.

Detection of ECPKA in the serum of cancer patients. Human serum samples were from renal cell carcinoma patients (n = 10); melanoma patients (n = 40); other cancer patients with colon, rectal, adrenal, and lung carcinomas and lymphomas (n = 50); and normal people (n = 14). The statistical analysis of the data was performed by the use of one-way ANOVA (*, P < 0.05). The PKA assay was carried out by the method described in Experimental Procedures with 10 μl of serum samples in the assay (total volume, 50 μl). LDH assay was carried out as described in Experimental Procedures with 10 μl of 6-fold-diluted serum.