Cluster analysis of the gene expression profiles of PBMC cells exposed to rPA
compared with those obtained from PBMC exposed to
for 4 hrs. RNA samples were isolated and hybridized on the cDNA micorarray slides as detailed in materials and methods. Images were analyzed using GenePix 4.0 and data were analyzed using GeneSpring 7.0 to identify up regulated (6a) and down regulated genes (6b).