PECAM1 and breast neoplasm: Analysis of the RNA profiling data set obtained from a cohort of 270 human breast tumors, which was deposited in Oncomine Database by Bittner et al., revealed that the levels of NCOA1 mRNA expression positively correlated with both expression levels of VEGFa mRNA (r = 0.23, P < 0.001) and CD31 mRNA (r = 0.40, P < 0.001) (Supplementary Figure S2).