Global gene expression profile in human breast cancer cell lines. (A) Heat map representing the unsupervised cluster analysis of global gene expression of MCF-7, MCF-7 1GX, vMCF-7ΔRaf-1, vMCF-7ΔRaf-1 1GX and metastatic vMCF-7ΔRaf-1 1GX cells. (B-D) Expression profile of TGFB2, BMP7, CXCR7, FOXC1, TWIST1, EGR2, EGR3 and EGR4 genes in MCF-7, MCF-7 1GX, vMCF-7ΔRaf-1, vMCF-7ΔRaf-1 1GX and metastatic vMCF-7ΔRaf-1 1GX cells.