To characterize the molecular features of p53 signaling pathway, we generated the gene-expression profiles of p53-introduced U373MG cells by genome-wide cDNA microarrays Keywords: time course U373MG cells were infected with 20 MOI of Ad-p53 or Ad-LacZ. mRNA from infected cells were collected at 0h, 6h, 12h, 24h and 48h. we used the RNA mixtures from Ad-LacZ infected cells as a reference of cDNA microarray analysis.