DNA microarray gene expression analysis of human vascular endothelial cells exposed to arsenite

DNA microarray was used to monitor the transcriptional response of human brain microvascular endothelial cells (HBMEC) and human coronary artery endothelial cells (HCAEC) to sodium arsenite (iAs(III)). iAs(III) enhanced the expression of 10 and 6 genes, and reduced the expression of 45 and 20 genes in HBMEC and HCAEC, respectively. Among the 64 genes whose expression was changed in some way, HBMEC and HCAEC had 5 up-regulated and 12 down-regulated genes in common.