Quantitative PCR analysis of selected genes. Two tumors of each tumor type were analyzed by quantitative PCR. The measured fold change relative to cell line was determined. RNA amounts per well being normalized by betaactin signal. In general <2-fold changes are not significant. Hence a call of 1.5 fold down may not actually differ from 1.5 up. Specific tumor types are indicated by the first initial followed by the tumor number: i.e. C1 = colon tumor #1, O1 = ovary tumor #1, L1 = lung tumor #1, B1 = breast tumor #1, P1 = prostate tumor #1.