Figure 4.

A gene expression signature correlated to metastasis in pancreatic adenocarcinoma. Three hundred fifty five transcripts (rows) identified as differentially expressed (FDR ≤ 5%) between metastatic (dark box) and primary tumor (dark gray) samples from 21 patients (columns). Patient ID numbers are shown below the columns. One hundred thirty four intronic and intergenic lncRNAs were identified, comprising 38% of the metastasis signature. Expression level of each transcript is represented by the number of standard deviations above (red) or below (blue) the average value across all samples. Samples are ordered according to their individual correlation to the average profile of primary tumor samples. Tissue histology is shown below each patient ID.