DNA copy number analysis of extracellular and intracellular DNA from SW480 cells and gene transfer to murine NIH3T3 cells. A.

<p>Heat map representing the DNA copy number along chromosome 8. Blue represents regions with deletions and red regions with amplifications. A nearly identical pattern of DNA copy number changes between extracellular (SpDNA SW480) and intracellular (DNA SW480) DNA, compared to a common normal reference can be observed. RT-PCR, PCR and sequencing of Human <i>K-ras</i> (<b>B</b>) and <i>RAB30</i> (<b>C</b>)<b>.</b> Negative control was NIH3T3 cells.