Identification of differentially expressed genes in bEnd.3 endothelial cell line after contact with 164T2 T lymphoma cells. (A) Gene expression profiling was performed using RNA isolated from bEnd.3 endothelial cells (ECs) cultured alone (control, left panel) and bEnd.3 cells after contact with 164T2 T lymphoma cell line (right panel). (B) Scatter plot analysis of densitometric quantification of expression data. Each point represents 1 of the 1176 genes on the array and the location of each point on the scatter plot is determined by the gene expression level in bEnd.3 cells, represented on the x-axis, and the gene expression level in bEnd.3 cells after contact with lymphoma cells, represented in the y-axis. EGR-1 is indicated by the arrow.