<p>BMSC samples from 3 donors (FePro-labeled, gold nanoparticle-labeled and unlabeled control) and control cells (3 samples from human embryonic stem cells and 3 samples of adult cells) were analyzed by an oligonucleotide microarray. The multidimensional scaling plot similarly grouped the hES cells together, the adult cells other than BMSCs together in another group, and all the BMSC samples into a third group. The BMSCs did not cluster according to the type of labeling method. hES- human embryonic stem cell; adult indicated the adult cells: Fb-fibroblasts, EC endothelial cells, SMC-smooth muscle cells; BMSC-FePro: bone marrow stromal cellslabeled with FePro; BMSC-Gold: bone marrow stromal cells labeled with gold nanoparticle; BMSC-control: unlabeled BMSC control; D1: donor 1; D2-donor 2; D3 donor 3.</p
